Control assembly, gearbox and mower

Abstract

The utility model relates to the technical field of agricultural appliances, and discloses a control assembly used for driving a gear shifting assembly and a speed changing assembly.The control assembly comprises a first rotating piece, a second rotating piece, a third rotating piece and a fourth rotating piece, the first movement switching piece is connected with the first rotating piece so as to switch the rotating movement of the first rotating piece into linear movement and drive the gear shifting assembly to achieve gear shifting; and the second motion switching piece is connected with the first rotating piece so as to switch the rotating motion of the first rotating piece into linear motion and drive the speed change assembly to realize speed regulation. According to the control assembly, the gearbox and the mower, gear shifting and speed regulation can be achieved at the same time.

Description

Technical Field

[0001] The present application relates to the technical field of agricultural implements, and in particular to a control assembly, a gearbox and a lawn mower. Background Art

[0002] A lawn mower, also known as a weed cutter, lawn mower, lawn trimmer, etc., is a mechanical tool used to trim lawns, vegetation, etc. Existing lawn mowers are mainly hand-held lawn mowers, but in order to improve the mowing efficiency of lawn mowers, existing lawn mowers have gradually developed into lawn mowers. In order to further improve the mowing efficiency of lawn mowers, there is an urgent need in the prior art for a control component that can simultaneously drive the lawn mower to shift gears and adjust speed. Utility Model Content

[0003] The present application mainly solves the technical problem in the prior art that there is a lack of a control component that can simultaneously drive the lawn mower to shift gears and adjust speed.

[0004] In a first aspect, the present application provides a control assembly for driving a shift assembly and a speed change assembly, wherein the control assembly comprises:

[0005] a first rotating member, the first rotating member being used to achieve rotational motion;

[0006] A first motion switching member, the first motion switching member is connected to the first rotating member to switch the rotational motion of the first rotating member into a linear motion and drive the shift assembly to achieve gear shifting;

[0007] A second motion switching member, the second motion switching member is connected to the first rotating member to switch the rotational motion of the first rotating member into a linear motion and drive the speed change assembly to achieve speed regulation;

[0008] When the first rotating member rotates, the control component includes a first control state and a second control state; wherein,

[0009] In the first control state, the first rotating member rotates forward, the first rotating member drives the speed change assembly through the second motion switching member to form an acceleration, and the first rotating member drives the shift assembly through the first motion switching member to form a forward gear;

[0010] In the second control state, the first rotating member rotates in the opposite direction, the first rotating member drives the speed change assembly to accelerate through the second motion switching member, and the first rotating member drives the shift assembly to reverse gear through the first motion switching member.

[0011] In one embodiment, the first motion switching member is used to switch the rotational motion of the first rotating member into a linear motion along a first direction;

[0012] The second motion switching member is used to switch the rotational motion of the first rotating member into a linear motion along a second direction, and the first direction intersects with the second direction.

[0013] In one embodiment, the first motion switching member includes:

[0014] a first rotational movement structure, wherein the first rotational movement structure performs circumferential rotation about a first rotation axis, and the first rotation axis is arranged along the first direction;

[0015] A first linear motion structure and a first matching portion, wherein the first rotational motion structure is connected to the first linear motion structure via the first matching portion to switch the circumferential rotation of the first rotational motion structure into linear motion of the first linear motion structure along the first direction.

[0016] In one embodiment, the second motion switching member includes:

[0017] a second rotational movement structure, wherein the second rotational movement structure performs circumferential rotation about a second rotation axis, and the second rotation axis is arranged along the second direction;

[0018] A second linear motion structure and a second matching portion, wherein the second rotational motion structure is connected to the second linear motion structure via the second matching portion to switch the circumferential rotation of the second rotational motion structure into linear motion of the second linear motion structure along the second direction.

[0019] In one embodiment, the first rotating member performs circumferential rotation around the central axis of the first rotating member, and the central axis of the first rotating member is parallel to the first rotation axis;

[0020] The first rotating member is connected to the first rotating motion structure to drive the first rotating motion structure to rotate around the first rotating axis;

[0021] The first rotating member is connected to the second rotating motion structure via a connecting rod arranged along a third direction to drive the second rotating motion structure to rotate around the second rotating axis.

[0022] In one embodiment, the first rotating member includes:

[0023] A fixed shaft and a first transmission sleeve, wherein the fixed shaft is fixedly connected to the fixing member, and the first transmission sleeve is sleeved outside the fixed shaft;

[0024] A first clamping member, wherein the first clamping member and the second clamping member are both rotatably connected to the first transmission sleeve, the first elastic member is sleeved outside the first transmission sleeve, the first elastic member is respectively abutted against the first clamping member and the second clamping member to drive the first clamping member and the second clamping member to approach each other, and a clamping space is formed between the first clamping member and the second clamping member;

[0025] A connecting plate, the connecting plate being rotatably connected to the first transmission sleeve, the connecting plate being provided with a driving column and a balancing column, the driving column extending toward the clamping space and abutting against the first clamping member and the second clamping member;

[0026] A transmission plate, wherein the transmission plate is located in the clamping space, the first clamping member and the second clamping member are respectively arranged on both sides of the transmission plate, and the first clamping member and the second clamping member are against the transmission plate;

[0027] A driving plate, wherein the driving plate is rotationally connected to the first transmission sleeve, the driving plate is fixedly connected to the connecting plate via the driving column and the balancing column, and the driving plate is used to drive the driving column to rotate around the first transmission sleeve.

[0028] In one possible implementation manner, the first rotational motion structure is a cylindrical part, a rotation cavity is provided in the first rotational motion structure, the first linear motion structure is located in the rotation cavity of the first rotational motion structure, and the first linear motion structure is rotationally connected to the first rotational motion structure;

[0029] The first matching portion includes a sliding groove and a sliding column, the sliding groove is arranged in one of the first linear motion structure or the first rotational motion structure, and the sliding groove is arranged in the other of the first linear motion structure or the first rotational motion structure; wherein,

[0030] When the first rotational motion structure rotates, the sliding post slides in the sliding groove and drives the first linear motion structure to move linearly along the first direction.

[0031] In one possible implementation manner, the sliding groove is formed by a first sliding arc and a second sliding arc that are spaced apart from each other, the first sliding arc is disposed toward the first linear motion structure, and the second sliding arc is disposed away from the first linear motion structure.

[0032] In one embodiment, the second linear motion structure and the second rotational motion structure are both cylindrical parts, the second rotational motion structure is connected to the connecting rod, and the second rotational motion structure is located at the bottom of the second linear motion structure;

[0033] The second matching portion includes a limiting protrusion group and a limiting groove group, and the second rotational motion structure and the second linear motion structure are both provided with the limiting protrusion group and the limiting groove group, the limiting protrusion group is gradually reduced outward from one end connected to the second rotational motion structure or the second linear motion structure, and the limiting groove group is gradually increased outward from one end connected to the second rotational motion structure or the second linear motion structure, and under the rotation of the second rotational motion structure, the limiting protrusion group interacts with the limiting groove group to lift the second linear motion structure while driving the second linear motion structure to rotate; wherein,

[0034] The limiting protrusion group of the second rotational motion structure and the second linear motion structure is formed by a first limiting protrusion and a second limiting protrusion arranged at intervals in the circumferential direction, and the limiting groove group of the second rotational motion structure and the second linear motion structure is formed by a first limiting groove and a second limiting groove arranged at intervals in the circumferential direction, and the first limiting groove and the second limiting groove are both located between the first limiting protrusion and the second limiting protrusion.

[0035] A second aspect of the present application provides a gearbox, including the control assembly in embodiment 1, and the gearbox further includes:

[0036] a shift assembly connected to the first motion switching member;

[0037] A speed change assembly is connected to the second motion switching member.

[0038] In one embodiment, the speed change assembly includes:

[0039] Power input parts, power output parts;

[0040] A first driving wheel and a second driving wheel, the power input member is drivingly connected to the first driving wheel, and the power output member is drivingly connected to the second driving wheel; wherein

[0041] The first driving wheel and the second driving wheel are formed by a first wheel rim and a second wheel rim which are spaced apart from each other, a driving cavity is formed between the first wheel rim and the second wheel rim, the distance between the first wheel rim and the second wheel rim increases gradually from inside to outside, and the first wheel rim can move relative to the second wheel rim to change the distance between the first wheel rim and the second wheel rim;

[0042] A driving belt, wherein the driving belt is respectively sleeved outside the first driving wheel and the second driving wheel to transmit power between the first driving wheel and the second driving wheel; wherein,

[0043] The distance between the driving belt and the rotation center of the first driving wheel is a first distance;

[0044] The distance between the rotation center of the driving belt and the second driving wheel is a second distance;

[0045] Under the action of the second motion switching member, the first rim moves relative to the second rim, and the length of the driving belt remains constant, the lengths of the first distance and the second distance change, and the lengths of the first distance and the second distance change in inverse proportion to change the transmission ratio between the first driving wheel and the second driving wheel.

[0046] In one embodiment, the shift assembly includes:

[0047] Driving parts;

[0048] A transmission shaft, a first transmission member, a second transmission member and a moving member, wherein the first transmission member and the second transmission member are spaced apart on the transmission shaft, the moving member is in transmission connection with the transmission shaft, and the moving member is located between the first transmission member and the second transmission member; wherein,

[0049] The driving member is rotatably connected to the first transmission member and the second transmission member respectively, and the rotation directions of the first transmission member and the second transmission member are opposite;

[0050] The first motion switching member is used to drive the moving member to move between the first transmission member and the second transmission member. Under the movement of the moving member, the shift assembly includes a first shift state, a second shift state and a third shift state; wherein,

[0051] In the first shifting state, the moving member is combined with the first transmission member, and the first transmission member is synchronously transmitted with the transmission shaft;

[0052] In the second shifting state, the moving member is combined with the second transmission member, and the second transmission member is synchronously transmitted with the transmission shaft;

[0053] In the third shift state, the moving member is not coupled with the first transmission member and the second transmission member, and the first transmission member and the second transmission member rotate independently.

[0054] A third aspect of the present application provides a lawn mower, characterized in that it includes the gearbox in embodiment 2.

[0055] Compared with the prior art, the control assembly, gearbox and lawn mower of the present application have the following beneficial effects:

[0056] In the present application, the first rotating member switches the rotational motion of the first rotating member into linear motion through the first motion switching member, and drives the shifting assembly to achieve gear shifting; the first rotating member switches the rotational motion of the first rotating member into linear motion through the second motion switching member, and drives the speed changing assembly to achieve speed regulation. In this way, the gear shifting and speed regulation of the gearbox can be achieved simultaneously through the control assembly.

[0057] Therefore, the present application has the characteristics of reasonable structure and convenient use. BRIEF DESCRIPTION OF THE DRAWINGS

[0058] Attached Figure 1 It is a structural schematic diagram of the control component of this application;

[0059] Attached Figure 2 It is a structural schematic diagram of the first rotating member of the present application;

[0060] Attached Figure 3 is another structural schematic diagram of the first rotating member of the present application;

[0061] Attached Figure 4 It is a structural schematic diagram of the first motion switching member of the present application;

[0062] Attached Figure 5 It is a structural schematic diagram of the first linear motion structure of the present application;

[0063] Attached Figure 6 It is a structural schematic diagram of the first rotational motion structure of the present application;

[0064] Attached Figure 7 It is a structural schematic diagram of the second motion switching member of the present application;

[0065] Attached Figure 8 It is a structural schematic diagram of the second rotational motion structure of the present application;

[0066] Attached Fig. 9 It is a structural schematic diagram of the second linear motion structure of the present application;

[0067] Attached Fig.10 It is a structural schematic diagram of the shift assembly of the present application;

[0068] Attached Fig.11 It is a structural schematic diagram between the shift assembly and the driving member of the present application;

[0069] Attached Fig.12 It is a structural schematic diagram of the mobile part of the present application;

[0070] Attached Fig.13 It is a structural schematic diagram of the driving connector of the present application;

[0071] Attached Fig.14It is a structural schematic diagram of the first transmission shaft of the present application;

[0072] Attached Fig.15 It is a structural schematic diagram of the speed change assembly of the present application;

[0073] Attached Fig.16 It is a structural schematic diagram of the first speed change structure of the present application;

[0074] Attached Fig.17 It is another structural schematic diagram of the first speed change structure of the present application;

[0075] Attached Fig.18 It is a structural schematic diagram of the second speed change structure of the present application.

[0076] Description of the numbers in the figure:

[0077] X, first direction; Y, second direction; Z, third direction;

[0078] 10. Control components;

[0079] 100, first rotating member; 110, fixed shaft; 111, first fixed section; 112, second fixed section; 113, first fixed member; 120, first transmission sleeve; 130, first clamping member; 140, second clamping member; 150, first elastic member; 151, first abutting section; 152, second abutting section; 160, clamping space; 170, connecting plate; 171, driving column; 172, balancing column; 180, transmission plate; 190, driving plate;

[0080] 200, first motion switching member; 210, first rotational motion structure; 211, fixing column; 212, fixing bolt; 213, first rotation axis; 220, first linear motion structure; 221, first positioning position; 222, neutral positioning position; 223, second positioning position; 230, first matching portion; 231, sliding groove; 231-1, first sliding arc; 231-2, second sliding arc; 232, sliding column; 240, second positioning member; 241, positioning bead; 242, second elastic member; 243, blocking; 250, first connecting member;

[0081] 300, second motion switching member; 310, second rotational motion structure; 311, rotation hole; 312, second rotation axis; 320, second linear motion structure; 330, second matching portion; 331, limiting protrusion group; 331-1, first limiting protrusion; 331-2, second limiting protrusion; 332, limiting groove group; 332-1, first limiting groove; 332-2, second limiting groove; 340, connecting rod; 350, seventh rotation member; 360, eighth rotation member;

[0082] 20. Gear shift assembly;

[0083] 21. Driving member; 21-1. Auxiliary driving member;

[0084] 22, first transmission shaft; 22-1, first transmission section; 22-2, second transmission section; 22-3, third transmission section; 22-4, fourth transmission section; 22-5, fifth transmission section;

[0085] 23-1, first transmission member; 23-2, second transmission member;

[0086] 24, moving member; 24-1, driving slot; 24-2, first moving column; 24-3, second moving column;

[0087] 25. first positioning member; 25-1. positioning column; 25-2. positioning hole;

[0088] 26. The third transmission member;

[0089] 27, driving connecting member; 27-1, fixing frame; 27-11, first fixing frame; 27-12, second fixing frame; 27-2, intermediate shaft; 27-3, swing ring; 27-4, swing column; 27-5, rotating sleeve;

[0090] 28. Intermediate transmission assembly;

[0091] 29. Power output assembly;

[0092] 30. Speed ​​change assembly;

[0093] 400, power input member; 410, second fixing member;

[0094] 500, power output parts;

[0095] 600, first speed change structure; 610, first driving wheel; 611, first wheel rim; 612, second wheel rim; 613, annular cavity; 620, driving cavity; 630, second transmission shaft; 631, third rotation axis; 640, first support frame; 641, first fixing hole; 642, connecting foot; 650, second rotating member; 660, fourth rotating member; 670, third elastic member; 680, isolation pad;

[0096] 700, second speed change structure; 710, second drive wheel; 720, third transmission shaft; 721, fourth rotation axis; 730, second support frame; 731, second fixing hole; 740, second transmission sleeve; 750, fifth transmission member; 760, cooling fan; 761, third fixing member; 770, fourth elastic member; 780, sixth rotating member;

[0097] 800, driving belt; 810, first distance; 820, second distance. DETAILED DESCRIPTION

[0098] In order to make the purpose, features, and advantages of the present application more obvious and easy to understand, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0099] The prior art has the technical problem of lacking a control component that can simultaneously drive the lawn mower to shift gears and adjust speed.

[0100] To this end, the first aspect of the present application provides a control component for driving a shift component and a speed change component, characterized in that the control component includes:

[0101] a first rotating member, the first rotating member being used to achieve rotational motion;

[0102] A first motion switching member, the first motion switching member is connected to the first rotating member to switch the rotational motion of the first rotating member into a linear motion and drive the shift assembly to achieve gear shifting;

[0103] A second motion switching member, the second motion switching member is connected to the first rotating member to switch the rotational motion of the first rotating member into a linear motion and drive the speed change assembly to achieve speed regulation;

[0104] When the first rotating member rotates, the control component includes a first control state and a second control state; wherein,

[0105] In the first control state, the first rotating member rotates forward, the first rotating member drives the speed change assembly through the second motion switching member to form an acceleration, and the first rotating member drives the shift assembly through the first motion switching member to form a forward gear;

[0106] In the second control state, the first rotating member rotates in the opposite direction, the first rotating member drives the speed change assembly to accelerate through the second motion switching member, and the first rotating member drives the shift assembly to reverse gear through the first motion switching member.

[0107] A second aspect of the present application provides a gearbox, which is characterized in that it includes the control assembly described in embodiment 1, and the gearbox also includes:

[0108] a shift assembly connected to the first motion switching member;

[0109] A speed change assembly is connected to the second motion switching member.

[0110] A third aspect of the present application provides a lawn mower, characterized in that it includes the gearbox described in Example 2.

[0111] Embodiment 1:

[0112] Please refer to the attached Figure 1 To Attachment Fig. 9 As shown, a specific implementation of the control component 10 of the present application is shown. The control component 10 of the present application is used to adjust the running speed of the mechanical kinetic energy in the gearbox and switch the transmission state of the mechanical kinetic energy. Adjusting the running speed of the mechanical kinetic energy refers to realizing the speed regulation of the gearbox. In the present application, the output speed of the speed change component in the gearbox is accelerated, decelerated, and unchanged compared with the input speed. Switching the transmission state of mechanical kinetic energy refers to realizing the gear shifting of the gearbox. In the present application, the mechanical kinetic energy transmission state of the gear shift component in the gearbox includes three conditions: forward rotation, reverse rotation, and gear shifting.

[0113] In the present application, the control assembly 10 is applied to an automated agricultural implement. In one embodiment, the control assembly 10 of the present application is applied to a lawn mower.

[0114] Please refer to the attached Figure 1 , the first direction X of the present application refers to the left-right direction of the control component 10, that is, the direction of the control component 10 from left to right or the direction of the control component 10 from right to left. In the present application, the first rotating member 100 is arranged to the right relative to the first motion switching member 200, and the first motion switching member 200 is arranged to the left relative to the first rotating member 100. The second direction Y of the present application refers to the height direction of the control component 10, that is, the direction of the control component 10 from top to bottom or the direction of the control component 10 from bottom to top. In the present application, the second rotational motion structure 310 is arranged below the second linear motion structure 320, and the second linear motion structure 320 is arranged above the second rotational motion structure 310. The third direction Z of the present application refers to the front-to-back direction of the control component 10, that is, the direction of the control component 10 from front to back or the direction of the control component 10 from back to front. In the present application, the first rotating member 100 is arranged to the rear relative to the second motion switching member 300. The second motion switching member 300 is arranged to the front relative to the first rotating member 100.

[0115] Attached Figure 1 This is a schematic diagram of the structure of the control component 10 of the present application. Figure 1 As shown, the control component 10 of the present application is used to adjust the running speed of the mechanical kinetic energy in the speed change component, and to adjust the transmission state of the mechanical kinetic energy in the shift component 20.

[0116] Please refer to the attached Figure 1As shown, the control assembly 10 of the present application includes a first rotating member 100, and the first rotating member 100 is used to realize rotational movement and further drive the first rotational movement structure 210 and the second rotational movement structure 310 to realize rotation.

[0117] Please refer to the attached Figure 1 As shown, the control assembly 10 of the present application further includes a first motion switching member 200 and a second motion switching member 300. The first motion switching member 200 and the second motion switching member 300 of the present application are used to switch the rotational motion of the first rotating member 100 into a linear motion, thereby driving the shift assembly and the speed change assembly. In addition to the structure in the present application, the first motion switching member 200 and the second motion switching member 300 of the present application can also be a worm gear structure or a ball screw structure.

[0118] The first motion switching member 200 of the present application is connected to the first rotating member 100 to switch the rotational motion of the first rotating member 100 into linear motion and drive the shift assembly to achieve gear shifting.

[0119] The second motion switching member 300 of the present application is connected to the first rotating member 100 to switch the rotational motion of the first rotating member 100 into linear motion and drive the speed change assembly to achieve speed regulation.

[0120] The shift assembly of the present application can be adjusted in linkage with the speed change assembly, that is, the acceleration of the speed change assembly and the shifting of the shift assembly can be achieved simultaneously through one operation action of the control assembly 10.

[0121] Wherein, under the rotation of the first rotating member 100, the control assembly 10 includes a first control state, a second control state and a third device state. In the first control state, the first rotating member 100 rotates forward, the first rotating member 100 drives the speed change assembly 30 through the second motion switching member 300 to form acceleration, and the first rotating member 100 drives the shift assembly 20 through the first motion switching member 200 to form a forward gear. In the second control state, the first rotating member 100 rotates reversely, the first rotating member 100 drives the speed change assembly 30 through the second motion switching member 300 to form acceleration, and the first rotating member 100 drives the shift assembly 20 through the first motion switching member 200 to form a reverse gear. In the third control state, the first rotating member 100 stops rotating, the speed change assembly 30 rotates at a constant speed, and the shift assembly 20 forms a neutral gear.

[0122] In the present application, the forward rotation and the reverse rotation of the first rotating member 100 refer to the rotation directions of the first rotating member 100 being opposite.

[0123] In one embodiment, under the control of the control component 10, there is a sequence of acceleration of the speed change component and shifting of the gear shift component in the first control state and the second control state, that is, after the control component 10 performs the control action, the speed change component first realizes rotation and then the gear shift component successfully shifts gears, which facilitates the smooth positioning of the first positioning member in the gear shift component. The gear shifting method of the gear shift component will be described in the attached Fig.11 Further explanation in.

[0124] In one embodiment, the first motion switching member 200 is used to switch the rotational motion of the first rotating member 100 into a linear motion along a first direction X, and the second motion switching member 300 is used to switch the rotational motion of the first rotating member 100 into a linear motion along a second direction Y. This facilitates the arrangement of the shift assembly 20 and the speed change assembly 30. In the present application, the first direction X intersects with the second direction Y. Further, the first direction X is perpendicular to the second direction Y.

[0125] Please refer to the attached Figure 1 As shown, in the present application, the first motion switching member 200 includes a first rotational motion structure 210, a first linear motion structure 220 and a first matching portion 230. The first rotational motion structure 210 performs circumferential rotation around a first rotation axis 213, and the first rotation axis 213 is arranged along a first direction X. The first rotational motion structure 210 is connected to the first linear motion structure 220 through the first matching portion 230 to switch the rotation of the first rotational motion structure 210 into the linear motion of the first linear motion structure 220 along the first direction X.

[0126] Please refer to the attached Figure 1 As shown, in the present application, the second motion switching member 300 includes a second rotational motion structure 310, a second linear motion structure 320 and a second matching portion 330. The second rotational motion structure 310 rotates circumferentially around a second rotation axis 312, and the second rotation axis 312 is arranged along the second direction Y. The second rotational motion structure 310 is connected to the second linear motion structure 320 through the second matching portion 330 to switch the axial rotation of the second rotational motion structure 310 into the linear motion of the second linear motion structure 320 along the second direction Y.

[0127] Please refer to the attached Figure 1 As shown, in the present application, the first rotating member 100 rotates around its own central axis, and the central axis of the first rotating member 100 is arranged parallel to the first rotating axis 213. Further, the central axis of the first rotating member 100 coincides with the first rotating axis 213.

[0128] Further, the first rotating member 100 is connected to the first rotating motion structure 210 to drive the first rotating motion structure 210 to rotate around the first rotating axis 213. The first rotating member 100 is connected to the second rotating motion structure 310 through a connecting rod 340 arranged along the third direction Z to drive the second rotating motion structure 310 to rotate around the second rotating axis 312. Thus, the first rotating member 100 leads to and realizes different rotation directions between the second rotating motion structure 310 and the first rotating motion structure 210.

[0129] Attached Figure 2 1 is a schematic diagram of the structure of the first rotating member 100 of the present application. Figure 3 is another structural schematic diagram of the first rotating member 100 of the present application. Figure 2 As shown, the first direction X in the present application refers to the left-right direction of the first rotating member 100, that is, the direction from left to right of the first rotating member 100 or the direction from right to left of the first rotating member 100. In the present application, the driving plate 190 is arranged on the left relative to the first fixing member 113, and the first fixing member 113 is arranged on the right relative to the driving plate 190.

[0130] Please refer to the attached Figure 2 And attached Figure 3 As shown, the first rotating member 100 of the present application is combined with a pedal or an operating lever in the agricultural machinery, and when the user drives the pedal or the operating lever, the first rotating member 100 can be synchronously driven to rotate. Further, the lawn mower is provided with two pedals for controlling the forward gear and the reverse gear of the lawn mower, that is, when the forward gear pedal is stepped on, the first rotating member 100 rotates, drives the shift assembly to switch to the forward gear, and the speed change assembly accelerates at the same time. When the reverse gear pedal is stepped on, the first rotating member 100 rotates, drives the shift assembly to switch to the reverse gear, and the speed change assembly accelerates at the same time.

[0131] In one embodiment, the maximum operating speed of the transmission in the forward gear state is greater than the maximum operating speed of the transmission in the reverse gear state.

[0132] Please refer to the attached Figure 2 And attached Figure 3 As shown, the first rotating member 100 of the present application includes a fixed shaft 110, which is arranged along the first direction X, and the relative position of the fixed shaft 110 is fixed. The fixed shaft 110 includes a first fixed section 111 and a second fixed section 112 arranged in sequence along the first direction X. In the present application, a case is arranged outside the shift assembly, the first fixed section 111 is fixedly connected to the case, and one end of the second fixed section 112 away from the first fixed section 111 is fixedly connected through a first fixing member 113 to ensure the fixed connection of the fixed shaft 110.

[0133] Please refer to the attached Figure 2 And attached Figure 3As shown, the first rotating member 100 of the present application also includes a first transmission sleeve 120, which is sleeved outside the fixed shaft 110. Further, the first transmission sleeve 120 is sleeved outside the second fixed section 112 of the fixed shaft 110, and the first transmission sleeve 120 and the second fixed section 112 are interference fit.

[0134] Please refer to the attached Figure 2 And attached Figure 3 As shown, the first rotating member 100 of the present application further includes a first clamping member 130, a second clamping member 140 and a first elastic member 150. The first clamping member 130 and the second clamping member 140 both include a rotating section and a clamping section, and the rotating section and the clamping section are fixedly connected. The rotating sections of the first clamping member 130 and the second clamping member 140 are rotatably connected to the first transmission sleeve 120, that is, the rotating sections of the first clamping member 130 and the second clamping member 140 are clearance-matched with the first transmission sleeve 120, and the first clamping member 130 and the second clamping member 140 can rotate around the first transmission sleeve 120. The clamping sections of the first clamping member 130 and the second clamping member 140 extend radially outwardly of the first transmission sleeve 120. The first elastic member 150 is sleeved outside the first transmission sleeve 120. In the present application, the first elastic member 150 is a torsion spring. The first abutting section 151 and the second abutting section 152 are respectively extended outward at both ends of the first elastic member 150. The first abutting section 151 abuts against the first clamping member 130, and the second abutting section 152 abuts against the second clamping member 140, thereby driving the first clamping member 130 and the second clamping member 140 to approach each other, that is, the first abutting section 151 drives the first clamping member 130 to rotate around the first transmission sleeve 120 and approach the second clamping member 140, and the second abutting section 152 drives the second clamping member 140 to rotate around the first transmission sleeve 120 and approach the first clamping member 130. A clamping space 160 is formed between the first clamping member 130 and the second clamping member 140. Further, the clamping space 160 is formed between the clamping section of the first clamping member 130 and the clamping section of the second clamping member 140.

[0135] The first elastic member 150 has an initial position, and the first rotating member 100 can be twisted and force accumulated under the driving force of the external force. When the driving force disappears, the first elastic member 150 can be restored to the initial position by the force accumulation.

[0136] Please refer to the attached Figure 2 And attached Figure 3As shown, in the present application, the first rotating member 100 further includes a connecting plate 170, which is rotatably connected to the first transmission sleeve 120, that is, a through hole is provided on the connecting plate 170, and the connecting plate 170 is clearance-matched with the first transmission sleeve 120 through the through hole to realize the rotatable connection of the connecting plate 170 around the first transmission sleeve 120. The connecting plate 170 extends radially outwardly from the first transmission sleeve 120 to form a protrusion, and a driving column 171 and a balancing column 172 may be fixedly connected to the protrusion, and the driving column 171 extends toward the clamping space 160 along the first direction X, and abuts against the first clamping member 130 and the second clamping member 140.

[0137] Please refer to the attached Figure 2 And attached Figure 3 As shown, the first rotating member 100 of the present application further includes a transmission plate 180, which is an L-shaped structure. A portion of the transmission plate 180 disposed along the first direction X is located in the clamping space 160. The first clamping member 130 and the second clamping member 140 are respectively located on both sides of the transmission plate 180, and the first clamping member 130 and the second clamping member 140 are both against the transmission plate 180. Further, the first clamping member 130 gives the transmission plate 180 a downward driving force, and the second clamping member 140 gives the transmission plate 180 an upward driving force, thereby ensuring that the transmission plate 180 is clamped in the clamping space 160.

[0138] In one embodiment, recesses are provided on both sides of the transmission plate 180 close to the first clamping member 130 and the second clamping member 140. The first clamping member 130 and the second clamping member 140 abut against the transmission plate 180 through the recesses of the transmission plate 180 to avoid displacement between the first clamping member 130, the second clamping member 140 and the transmission plate 180.

[0139] Please refer to the attached Figure 2 And attached Figure 3 As shown, the first rotating member 100 of the present application also includes a driving plate 190, and the driving plate 190 is the active member of the gear shift assembly 20 of the present application. In the present application, the setting of the first rotating member 100 depends on the driving mode of the agricultural machinery. If the agricultural implement is driven by a pedal, the first rotating member 100 of the present application can be used to achieve rotation. If the agricultural implement is driven by an electronic button, it can be directly driven by a motor.

[0140] The driving plate 190 is rotatably connected to the first transmission sleeve 120, that is, a through hole is provided on the driving plate 190, and the driving plate 190 is clearance-matched with the first transmission sleeve 120 through the through hole, so that the driving plate 190 can rotate around the first transmission sleeve 120 under the action of external force. The driving column 171 and the balancing column 172 are fixedly connected to the connecting plate 170 and are also fixedly connected to the driving plate 190, so the driving plate 190 can drive the driving column 171 to rotate around the first transmission sleeve 120.

[0141] Furthermore, a connecting hole is also provided on the driving plate 190 of the present application, and the connecting hole is used to connect with the pedal to further realize the rotation of the first rotating member 100.

[0142] Please refer to the attached Figure 2 And attached Figure 3 As shown, the specific rotation mode of the first rotating member 100 of the present application is that the driving plate 190 rotates and drives the driving column 171 to rotate at the same time. At this time, the driving column 171 is located in the clamping space 160 and abuts against the first clamping member 130 and the second clamping member 140. At this time, according to the different rotation directions of the driving plate 190, the driving column 171 can simultaneously drive the first clamping member 130 or the second clamping member 140 to rotate. That is, when the driving plate 190 rotates clockwise, the driving column 171 also rotates clockwise at the same time, and overcomes the upward force of the second abutting section 152 to drive the second clamping member 140 to move clockwise and away from the transmission plate 180. Due to the existence of the first abutting section 151, the first abutting section 151 further drives the transmission plate 180 to rotate clockwise, and at the same time realizes the abutment between the second abutting section 152 and the transmission plate 180. While realizing the rotation of the driving plate 190, the abutment between the first abutting section 151, the second abutting section 152 and the transmission plate 180 is realized again.

[0143] Attached Figure 4 This is a structural diagram of the first motion switching member 200 of the present application. Figure 4 As shown, the first motion switching member 200 of the present application is used to switch the rotational motion of the rotating member into linear motion, thereby further promoting the movement of the moving member 2 between the first transmission member and the second transmission member. In the present application, the first motion switching member 200 is a worm gear structure or a ball screw structure or as shown in the appended drawings of the present application. Figure 4 structure.

[0144] Please refer to the attached Figure 4 As shown, the first motion switching member 200 of the present application includes a first rotational motion structure 210, which is arranged along the first direction X. The first rotational motion structure 210 is transmission-connected to the transmission plate 180 to achieve synchronous rotation between the first rotational motion structure 210 and the transmission plate 180.

[0145] The first rotating motion structure 210 of the present application is connected to the transmission plate 180 by a fixed connection. The first rotating motion structure 210 is a cylindrical part, and the rotation axis of the first rotating motion structure 210 is the first rotation axis 213 around which the first rotating motion structure 210 rotates.

[0146] In one embodiment, a fixing column 211 is provided on the side of the first rotating motion structure 210 close to the transmission plate 180, and a fixing hole corresponding to the fixing column 211 is provided on the transmission plate 180. The fixing column 211 is formed in the fixing hole to form a circumferential limit of the first rotating motion structure 210. In the present application, the fixing column 211 and the fixing hole are both U-shaped structures. In the present application, the first rotating motion structure 210 and the transmission plate 180 are further fixed by fixing bolts 212, and the fixing bolts 212 pass through the first rotating motion structure 210 and the transmission plate 180 in sequence to achieve axial fixation of the first rotating motion structure 210.

[0147] Please refer to the attached Figure 4 As shown, the first motion switching member 200 of the present application further includes a first linear motion structure 220, which is arranged along the first direction X. A rotating cavity arranged along the first direction X is formed in the first rotational motion structure 210, and a portion of the first linear motion structure 220 is located in the rotating cavity of the first rotational motion structure 210. The first linear motion structure 220 is transmission-connected to the first rotational motion structure 210 through the first matching portion 230, so as to switch the rotational motion of the first rotational motion structure 210 into the linear motion of the first linear motion structure 220.

[0148] The first matching portion 230 includes a sliding column 232 and a sliding groove 231. The sliding column 232 and the sliding groove 231 are clearance matched. The sliding groove 231 is set in one of the first linear motion structure 220 and the first rotational motion structure 210, and the sliding column 232 is set in the other of the first linear motion structure 220 and the first rotational motion structure 210. When the first rotational motion structure 210 rotates, the sliding column 232 slides in the sliding groove 231 and drives the first linear motion structure 220 to move between the first transmission member 23-1 and the second transmission member 23-2.

[0149] In one embodiment, the sliding groove 231 is disposed on the first rotational motion structure 210, and the sliding post 232 is disposed on the first linear motion structure 220. Further, the sliding grooves 231 are disposed on both upper and lower sides of the first rotational motion structure 210, and the sliding posts 232 are correspondingly disposed on both upper and lower sides of the first linear motion structure 220, thereby enhancing the stability of the first matching portion 230 when working.

[0150] Please refer to the attached Figure 4As shown, the first matching portion 230 of the present application also includes a second positioning member 240. The shift assembly 20 in the present application includes three gears: forward, reverse and neutral. The second positioning member 240 is provided to increase the switching tactile feel and the stability during switching. During the movement of the first linear motion structure 220, the positioning members on the first linear motion structure 220 are respectively in contact with the second positioning member 240 to achieve the positioning of the first linear motion structure 220. When the second positioning member 240 enters the positioning position, the second positioning member 240 and the positioning position work together to provide a damping sense, thereby enhancing the tactile feel of the shift assembly during gear shifting. The positioning position has a certain limiting effect on the second positioning member 240, thereby further improving the stability of the shift assembly after gear shifting.

[0151] In one embodiment, the second positioning member 240 includes a positioning bead 241, a second elastic member 242 and a plug 243. A through hole for setting the second positioning member 240 is provided on the housing of the shift assembly 20. The plug 243, the second elastic member 242 and the positioning bead 241 are sequentially filled into the through hole. The positioning bead 241 is arranged toward the first linear motion structure 220. The plug 243 is interference fit with the bottom of the through hole. The second elastic member 242 is respectively against the plug 243 and the positioning bead 241, so that the positioning bead 241 always has a driving force to move toward the first linear motion structure 220. After the positioning bead 241 enters the positioning position, the shift assembly 20 is positioned.

[0152] Please refer to the attached Figure 4 As shown, the first mating portion 230 of the present application also includes a first connecting member 250, the first end of the first connecting member 250 is connected to an end of the first linear motion structure 220 away from the first rotational motion structure 210, and the second end of the first connecting member 250 is connected to the driving connecting member 27, thereby transmitting the linear motion of the first linear motion structure 220 to the driving connecting member 27.

[0153] Please refer to the attached Figure 4 As shown, the specific working method of the first motion switching member 200 of the present application is that the transmission plate 180 drives the first rotating motion structure 210 to rotate, and while the first rotating motion structure 210 rotates, the rotational motion of the first rotating motion structure 210 is switched into the linear motion of the first linear motion structure 220 through the first matching part 230, and further, the linear motion of the moving member is formed between the first transmission member and the second transmission member.

[0154] Attached Figure 5 This is a schematic diagram of the structure of the first linear motion structure 220 of the present application. Figure 5As shown, the first linear motion structure 220 of the present application is shown. The first linear motion structure 220 of the present application is a shaft-type part. A through hole is radially provided on the first linear motion structure. The sliding column 232 is partially located in the through hole. The two ends of the sliding column 232 extend outward and protrude from the first linear motion structure 220. The first linear motion structure 220 and the sliding column 232 are fixedly connected. The first linear motion structure 220 is provided with a first positioning position 221, a neutral positioning position 222 and a second positioning position 223. The neutral positioning position 222, the first positioning position 221 and the second positioning position 223 are all inwardly concave grooves. When the second elastic member, the driving positioning bead, enter the neutral positioning position 222, the first positioning position 221 and the second positioning position 223, the first linear motion structure 220 is positioned.

[0155] When the shift assembly is in the first shift state, the second positioning member is located in the first positioning position 221. When the shift assembly is in the second shift state, the second positioning member is located in the second positioning position 223. When the shift assembly is in the third shift state, the second positioning member is located in the neutral positioning position 222.

[0156] Attached Figure 6 This is a schematic diagram of the structure of the first rotational motion structure 210 of the present application. Figure 6 As shown, a fixing column 211 is provided at one end of the first rotational movement structure 210, and a screw hole is radially provided on the fixing column 211, and the screw hole is adapted to the fixing bolt 212. A rotation cavity is formed in the first rotational movement structure 210, and a sliding groove 231 is obliquely provided on the first rotational movement structure 210, and the sliding groove 231 is connected to the rotation cavity.

[0157] The sliding groove 231 is formed by a first sliding arc 231-1 and a second sliding arc 231-2 which are arranged at intervals. When assembled, the first sliding arc 231-1 is arranged toward the first linear motion structure, and the second sliding arc 231-2 is arranged away from the first linear motion structure. The first rotational motion structure includes clockwise rotation and counterclockwise rotation. When the first rotational motion structure rotates in different rotation directions, the first sliding arc 231-1 and the second sliding arc 231-2 are respectively in contact with the first linear motion structure 220. For example, when the first rotational motion structure rotates counterclockwise, the first sliding arc 231-1 is in contact with the sliding column 232, and drives the first linear motion structure to move toward the first transmission member. When the first rotational motion structure rotates clockwise, the second sliding arc 231-2 is in contact with the sliding column 232, and drives the first linear motion structure to move toward the second transmission member.

[0158] Attached Figure 7This is a structural diagram of the second motion switching member 300 of the present application. Figure 7 As shown, the second motion switching member 300 of the present application includes a second rotational motion structure 310, a second linear motion structure 320 and a second matching portion 330. The first rotating member 100 is connected to the second rotational motion structure 310 through a connecting rod 340. Further, a rotation hole 311 connected to the connecting rod 340 is provided on the second rotational motion structure 310. The second rotational motion structure 310 is connected to the connecting rod 340 through the rotation hole 311. When the first rotating member 100 rotates, the second rotational motion structure 310 is driven to rotate through the connecting rod 340.

[0159] The second rotational motion structure 310 rotates circumferentially around the second rotational axis 312 , and the second rotational axis 312 is arranged along the second direction Y. Furthermore, the second rotational axis 312 is formed by the second transmission shaft 630 , and the second rotational motion structure 310 and the second linear motion structure 320 both rotate around the second transmission shaft 630 .

[0160] In the present application, the second linear motion structure 320 is located above the second rotational motion structure 310, and the second rotational motion structure 310 is connected to the second linear motion structure 320 through the second matching portion 330 to switch the circumferential rotation of the second rotational motion structure 310 into the linear motion of the second linear motion structure 320 along the second direction Y.

[0161] In the present application, the second motion switching member 300 is used to lift the first wheel rim 611 of the first driving wheel, thereby adjusting the distance between the first wheel rim 611 of the first driving wheel and the second wheel rim of the first driving wheel. Further, the second rotational motion structure 310 is rotationally connected to the second transmission shaft 630 through the seventh rotation member 350, and the second linear motion structure 320 is rotationally connected to the first wheel rim 611 of the first driving wheel 610 through the eighth rotation member 360.

[0162] Attached Figure 8 Attached is a structural diagram of the second rotational motion structure 310 of the present application. Fig. 9 This is a schematic diagram of the structure of the second linear motion structure 320 of the present application. Figure 8 And attached Fig. 9As shown, the second rotating motion structure 310 of the present application includes a second rotating motion structure 310, a second linear motion structure 320 and a second matching portion 330, and the second matching portion 330 includes a limiting protrusion group 331 and a limiting groove group 332. The second rotating motion structure 310 and the second linear motion structure 320 are both provided with a limiting protrusion group 331 and a limiting groove group 332. The limiting protrusion group 331 is gradually reduced outward from one end connected to the second rotating motion structure 310 or the second linear motion structure 320, and the limiting groove group 332 is gradually increased outward from one end connected to the second rotating motion structure 310 or the second linear motion structure 320. Under the rotation of the second rotating motion structure 310, the limiting protrusion group 331 interacts with the limiting groove group 332 to increase the linear distance of the second linear motion structure 320 while driving the second linear motion structure 320 to rotate, so as to lift the first wheel rim of the first driving wheel.

[0163] Among them, the limiting protrusion group 331 of the second rotating motion structure 310 and the second linear motion structure 320 is formed by the first limiting protrusion 331-1 and the second limiting protrusion 331-2 arranged at a circumferential interval, and the limiting groove group 332 of the second rotating motion structure 310 and the second linear motion structure 320 is formed by the first limiting groove 332-1 and the second limiting groove 332-2 arranged at a circumferential interval, and the first limiting groove 332-1 and the second limiting groove 332-2 are both located between the first limiting protrusion 331-1 and the second limiting protrusion 331-2.

[0164] Furthermore, the limiting protrusion group 331 and the limiting groove group 332 are arranged on the same plane. That is, the first limiting protrusion 331-1 is formed by the first limiting surface and the second limiting surface, and the second limiting protrusion 331-2 is formed by the third limiting surface and the fourth limiting surface. The first limiting surface and the third limiting surface simultaneously form the first limiting groove 332-1, and the second limiting surface and the fourth limiting surface also form the second limiting groove 332-2.

[0165] In one embodiment, the first limiting groove 332 - 1 , the second limiting groove 332 - 2 , the first limiting protrusion 331 - 1 , and the second limiting protrusion 331 - 2 are all conical structures.

[0166] Please refer to the attached Figure 8 And attached Fig. 9 As shown, during specific operation, the limiting protrusion group 331 of the second rotating motion structure 310 is located in the limiting groove group 332 of the second linear motion structure 320, and the limiting protrusion group 331 of the second linear motion structure 320 is located in the limiting groove group 332 of the second rotating motion structure 310. Regardless of whether the second rotating motion structure 310 rotates forward or reverse, the limiting protrusion group 331 and the limiting groove group 332 between the second rotating motion structure 310 and the second linear motion structure 320 work together to lift the second linear motion structure 320.

[0167] Embodiment 2:

[0168] Please refer to the attached Fig.10 To Attachment Fig.18 As shown, a specific implementation of the gearbox of the present application is shown. The gearbox of the present application is used to adjust the running speed of mechanical kinetic energy and switch the transmission state of mechanical kinetic energy. Adjusting the running speed of mechanical kinetic energy refers to realizing the speed regulation of the gearbox. In the present application, the output speed of the speed change component 30 in the gearbox has three conditions of acceleration, deceleration and unchanged compared with the input speed. Switching the transmission state of mechanical kinetic energy refers to realizing the gear shifting of the gearbox. In the present application, the mechanical kinetic energy transmission state of the shift component 20 in the gearbox includes three conditions of forward rotation, reverse rotation and gear shifting.

[0169] The speed change assembly 30 and the shift assembly 20 in the gearbox of the present application are connected in series through the control assembly 10, so that the speed change action can be realized simultaneously when shifting gears.

[0170] Please refer to the attached Fig.10 To Attachment Fig.18 As shown, the gearbox of the present application includes a control assembly 10, a speed change assembly 30 and a shift assembly 20. The specific structure of the control assembly 10 is as described in Example 1 and will not be repeated in this embodiment. The speed change assembly 30 and the shift assembly 20 are further described in subsequent drawings.

[0171] In the present application, the control assembly 10 is applied to an automated agricultural implement. In one embodiment, the control assembly 10 of the present application is applied to a lawn mower.

[0172] Attached Fig.10 This is a schematic diagram of the structure of the shift assembly 20 of the present application. Fig.10 As shown, in the present application, the first direction X refers to the left-right direction of the shift assembly 20, that is, the direction from left to right of the shift assembly 20 or the direction from right to left of the shift assembly 20. In the present application, the first transmission member 23-1 is arranged to the left of the second transmission member 23-2, and the second transmission member 23-2 is arranged to the right of the first transmission member 23-1. In the present application, the second direction Y refers to the front-to-back direction of the shift assembly 20, that is, the direction from front to back of the shift assembly 20 or the direction from back to front of the shift assembly 20. In the present application, the intermediate transmission assembly 28 is arranged to the front of the shift assembly 20, and the shift assembly 20 is arranged to the back of the intermediate transmission assembly 28.

[0173] Please refer to the attached Fig.10As shown, the shift assembly 20 of the present application includes a first transmission shaft 22, which is arranged along a first direction X. The first transmission shaft 22 can rotate circumferentially around its axis under the drive of a moving member 24. In the present application, when the first transmission shaft 22 rotates, the shift assembly 20 forms a forward or reverse state. When the first transmission shaft 22 does not rotate, the shift assembly 20 forms a neutral state.

[0174] Please refer to the attached Fig.10 As shown, the shift assembly 20 further includes a first transmission member 23-1 and a second transmission member 23-2. The first transmission member 23-1 and the second transmission member 23-2 are arranged in sequence on the first transmission shaft 22 along the first direction X, and the axes of the first transmission member 23-1 and the second transmission member 23-2 coincide with the axis of the first transmission shaft 22. The first transmission member 23-1 and the second transmission member 23-2 are sleeved outside the first transmission shaft 22, and the first transmission member 23-1 and the second transmission member 23-2 rotate around the axis of the first transmission shaft 22. It should be noted that at this time, the first transmission member 23-1 and the second transmission member 23-2 rotate around the first transmission shaft 22, which means that when the shift assembly 20 of the present application realizes forward or reverse rotation, the first transmission member 23-1 or the second transmission member 23-2 drives the first transmission shaft 22 to rotate synchronously through the moving member 24. When the shift assembly 20 of the present application realizes neutral gear, the first transmission member 23-1 and the second transmission member 23-2 rotate separately.

[0175] In one embodiment, the first transmission member 23-1 and the second transmission member 23-2 are both sleeved outside the first transmission shaft 22, and the first transmission member 23-1, the second transmission member 23-2 and the first transmission shaft 22 are connected in a clearance fit, a sleeve fit, or a bearing fit.

[0176] In one embodiment, the first transmission member 23 - 1 and the second transmission member 23 - 2 may be transmission gears. Further, the first transmission member 23 - 1 and the second transmission member 23 - 2 may be bevel gears or cylindrical gears.

[0177] Please refer to the attached Fig.10 As shown, the shift assembly 20 in the present application includes a driving member 21, which is respectively connected to the first transmission member 23-1 and the second transmission member 23-2 in transmission connection, and the first transmission member 23-1 and the second transmission member 23-2 rotate in opposite directions.

[0178] In the present application, the driving member 21 is a bevel gear or a cylindrical gear. When the first transmission member 23-1 and the second transmission member 23-2 are bevel gears, the driving member 21 is also a bevel gear, the driving member 21 is arranged between the first transmission member 23-1 and the second transmission member 23-2, and the driving member 21 is respectively meshed with the first transmission member 23-1 and the second transmission member 23-2 to achieve the reverse rotation between the first transmission member 23-1 and the second transmission member 23-2. When the first transmission member 23-1 and the second transmission member 23-2 are cylindrical gears, the driving member 21 is also a cylindrical gear, the driving member 21 is meshed with the first transmission member 23-1 and the second transmission member 23-2, and an idler gear is arranged between the driving member 21 and the first transmission member 23-1 or the driving member 21 and the second transmission member 23-2, so as to achieve the opposite rotation direction between the first transmission member 23-1 and the second transmission member 23-2. The reverse rotation between the first transmission member 23 - 1 and the second transmission member 23 - 2 means that the rotation direction of the first transmission member 23 - 1 is one of forward rotation and reverse rotation, and the rotation direction of the second transmission member 23 - 2 is the other of forward rotation and reverse rotation.

[0179] Please refer to the attached Fig.10 As shown, the shift assembly 20 of the present application also includes a moving member 24. In the present application, in addition to the rotational movement of the first transmission member 23-1 and the second transmission member 23-2, the circumferential positions of the first transmission member 23-1 and the second transmission member 23-2 relative to the first transmission shaft 22 remain unchanged. In addition to the rotational movement of the moving member 24, the moving member 24 can also rotate along the first direction X on the first transmission shaft 22. The moving member 24 is transmission-connected to the first transmission shaft 22, and the moving member 24 is sleeved on the first transmission shaft 22. The transmission connection between the moving member 24 and the first transmission shaft 22 means that the moving member 24 can drive the first transmission shaft 22 to rotate synchronously when rotating.

[0180] The moving member 24 is located between the first transmission member 23-1 and the second transmission member 23-2. Further, the moving member 24 is completely located in the space between the first transmission member 23-1 and the second transmission member 23-2, that is, the cross-sectional area of ​​the moving member 24 is smaller than the cross-sectional area of ​​the first transmission member 23-1 and the second transmission member 23-2.

[0181] Please refer to the attached Fig.10As shown, the moving member 24 of the present application can move on the first transmission member 23-1 and the second transmission member 23-2. When the moving member 24 moves, the moving member 24 can be combined with the first transmission member 23-1 and the second transmission member 23-2 respectively. When the moving member 24 is combined with the first transmission member 23-1, the first transmission member 23-1 can drive the moving member 24 to rotate synchronously. When the moving member 24 is combined with the second transmission member 23-2, the second transmission member 23-2 can drive the moving member 24 to rotate synchronously. And due to the rotation directions of the first transmission member 23-1 and the second transmission member 23-2, different rotation directions of the moving member 24 can be formed. The combination method of the moving member 24 with the first transmission member 23-1 and the second transmission member 23-2 will be further described in the subsequent drawings.

[0182] Please refer to the attached Fig.10 As shown, the shift assembly 20 of the present application also includes a first motion switching member, which is used to drive the moving member 24 to move between the first transmission member 23-1 and the second transmission member 23-2. Under the movement of the moving member 24, the shift assembly 20 includes a first shift state, a second shift state and a third shift state.

[0183] In the first shifting state, the moving member 24 is combined with the first transmission member 23-1, and the first transmission member 23-1 drives the moving member 24 to rotate synchronously, and further drives the first transmission shaft 22 to rotate synchronously. At this time, the kinetic energy transmission state of the shifting assembly 20 is one of forward rotation and reverse rotation.

[0184] In the second shifting state, the moving member 24 is combined with the second transmission member 23-2, and the second transmission member 23-2 drives the moving member 24 to rotate synchronously, and further drives the first transmission shaft 22 to rotate synchronously. At this time, the kinetic energy transmission state of the shifting assembly 20 is the other of forward rotation and reverse rotation.

[0185] In the third shifting state, the moving member 24 is not coupled with the first transmission member 23-1 and the second transmission member 23-2, and the first transmission member 23-1 and the second transmission member 23-2 rotate independently. At this time, the kinetic energy transmission state of the shifting assembly 20 is neutral.

[0186] Please refer to the attached Fig.10 As shown, the shift assembly 20 of the present application also includes a third transmission member 26, which is arranged on the first transmission shaft 22. The third transmission member 26 is transmission-connected to the first transmission shaft 22, that is, the third transmission member 26 and the first transmission shaft 22 rotate synchronously to output the power of the first transmission member 23-1 or the second transmission member 23-2.

[0187] In one embodiment, the third transmission member 26 is a transmission gear, and the transmission gear is fixedly connected to the first transmission shaft 22 .

[0188] Please refer to the attached Fig.10 As shown, the shift assembly 20 of the present application further includes an intermediate transmission assembly 28 and a power output assembly 29. The third transmission member 26 is connected to the power output assembly 29 via the intermediate transmission assembly 28 to achieve power output with different directions.

[0189] The intermediate transmission assembly 28 is provided to increase or decrease the original transmission speed.

[0190] The power output assembly 29 includes a single-shaft output or a dual-shaft output to adapt to different usage scenarios. In the case of dual-shaft output, a differential mechanism is connected between the two output shafts.

[0191] In one embodiment, the third transmission member 26 , the intermediate transmission assembly 28 and the power output assembly 29 are all connected by gears.

[0192] In one embodiment, the third transmission member 26 , the intermediate transmission assembly 28 and the power output assembly 29 are sequentially arranged along the second direction Y.

[0193] Please refer to the attached Fig.10 As shown, the first motion switching member 200 of the present application is connected to the first rotating member 100. The first rotating member 100 rotates circumferentially under the drive of an external force to switch the rotational motion of the first rotating member 100 into a linear motion.

[0194] The shift assembly 20 of the present application further includes a driving connection member 27, through which the first motion switching member is connected to the moving member 24 to drive the moving member 24 to move between the first transmission member 23-1 and the second transmission member 23-2, and realize the forward, reverse or neutral state of the shift assembly 20.

[0195] Attached Fig.11 This is a schematic diagram of the structure between the shift assembly 20 and the drive member 21 of the present application. Fig.11 As shown, the shift assembly 20 of the present application includes a moving member 24, and the moving member 24 is sleeved on the first transmission shaft 22, and the first transmission shaft 22 is connected to the moving member 24 through a spline. The spline includes an inner spline and an outer spline, and the inner spline is arranged on one of the first transmission shaft 22 and the moving member 24, and the outer spline is arranged on the other of the first transmission shaft 22 and the moving member 24. The moving member 24 is in transmission connection with the first transmission shaft 22, and the transmission connection between the moving member 24 and the first transmission shaft 22 means that the moving member 24 can drive the first transmission shaft 22 to rotate synchronously when rotating.

[0196] Please refer to the attached Fig.11As shown, the shift assembly 20 of the present application also includes a first transmission member 23-1 and a second transmission member 23-2, and the first transmission member 23-1 and the second transmission member 23-2 are sequentially arranged on the first transmission shaft 22 along the first direction X and are spaced apart. The first transmission member 23-1 is sleeved outside the first transmission shaft 22 and is rotatably connected to the first transmission shaft 22. Further, the rotatable connection between the first transmission member 23-1 and the first transmission shaft 22 includes a sleeve connection or a bearing connection. The second transmission member 23-2 is sleeved outside the moving member 24 and is movably connected to the moving member 24. Further, the second transmission member 23-2 and the moving member 24 are clearance-fitted, and the moving member 24 can move in the second transmission member 23-2 to form a first shift state, a second shift state, and a third shift state.

[0197] Please refer to the attached Fig.11 As shown, the moving member 24 is positioned and connected with the first transmission member 23-1 and the second transmission member 23-2 through the first positioning member 25. The first positioning member 25 includes a corresponding positioning column 25-1 and a positioning hole 25-2, and the positioning column 25-1 is set on one of the first transmission member 23-1, the second transmission member 23-2 or the moving member 24. The positioning hole 25-2 is set on the other one of the first transmission member 23-1, the second transmission member 23-2 and the moving member 24.

[0198] In one embodiment, the positioning hole 25-2 is provided on the moving member 24, and the positioning post 25-1 is provided on the first transmission member 23-1 and the second transmission member 23-2. When the moving member 24 moves toward the first transmission member 23-1 and the positioning post 25-1 on the first transmission member 23-1 enters the positioning hole 25-2 on the moving member 24, a first shifting state is formed, i.e., a state in which the moving member 24 is combined with the first transmission member 23-1. When the moving member 24 moves toward the second transmission member 23-2 and the positioning post 25-1 on the second transmission member 23-2 enters the positioning hole 25-2 on the moving member 24, a second shifting state is formed, i.e., a state in which the moving member 24 is combined with the second transmission member 23-2.

[0199] When the gear shifting assembly 20 is shifting, the driving member 21 first drives the first transmission member 23-1 and the second transmission member 23-2 to rotate to eliminate the position difference between the positioning column 25-1 and the positioning hole 25-2, so that the gear shifting will not fail.

[0200] Please refer to the attached Fig.11 As shown, the shift assembly 20 of the present application also includes a third transmission member 26, which is arranged on the first transmission shaft 22. The third transmission member 26 is transmission-connected to the first transmission shaft 22, that is, the third transmission member 26 and the first transmission shaft 22 rotate synchronously to output the power of the first transmission member 23-1 or the second transmission member 23-2.

[0201] Please refer to the attached Fig.11 As shown, the shift assembly 20 of the present application further includes a driving connection member 27, and the first motion switching member 200 is connected to the moving member 24 through the driving connection member 27 to drive the moving member 24 to move between the first transmission member 23-1 and the second transmission member 23-2, and realize the forward, reverse or neutral state of the shift assembly 20.

[0202] Please refer to the attached Fig.11 As shown, the driving member 21 of the present application is meshed with the first transmission member 23-1 and the second transmission member 23-2 to drive the first transmission member 23-1 and the second transmission member 23-2 to rotate, and the first transmission member 23-1 and the second transmission member 23-2 rotate in opposite directions. The bottom of the first transmission member 23-1 and the second transmission member 23-2 is meshed with an auxiliary driving member 21-1, and the auxiliary driving member 21-1 rotates synchronously with the first transmission member 23-1 and the second transmission member 23-2 to enhance the stability of the first transmission member 23-1 and the second transmission member 23-2 when rotating.

[0203] Attached Fig.12 This is a schematic diagram of the structure of the moving part 24 of the present application. Fig.12 As shown, the moving member 24 of the present application includes a first moving column 24-2 and a second moving column 24-3 arranged along the first direction X, the first moving column 24-2 is fixedly connected to the second moving column 24-3, the first moving column 24-2 and the second moving column 24-3 are both cylindrical parts, and internal splines are provided through the first moving column 24-2 and the second moving column 24-3. The diameter of the first moving column 24-2 is smaller than the diameter of the second moving column 24-3, and the second moving column 24-3 is formed with a protrusion protruding radially from the first moving column 24-2, and a positioning hole 25-2 is provided through the protrusion.

[0204] Please refer to the attached Fig.12 As shown, the moving member 24 of the present application is provided with a driving groove 24-1 around the outer circumference. After the moving member 24 is installed, the driving groove 24-1 is arranged close to the driving member 21. The driving groove 24-1 is formed along the first side and the second side arranged at intervals. The first side is arranged close to the first transmission member, and the second side is arranged away from the second transmission member. After the driving connecting member is connected to the moving shaft through the first connecting member, the moving shaft drives the driving connecting member to swing in the driving groove 24-1.

[0205] When the driving connecting member abuts against the first side, the driving connecting member drives the moving member 24 to move toward the first transmission member. When the driving connecting member abuts against the second side, the driving connecting member drives the moving member 24 to move toward the second transmission member.

[0206] Attached Fig.13 This is a schematic diagram of the structure of the drive connector 27 of the present application. Fig.13 As shown, the driving connecting member 27 of the present application includes a fixed frame 27-1 and an intermediate shaft 27-2, and the fixed frame 27-1 is arranged on one side of the moving member. The fixed frame 27-1 includes a first fixed frame 27-11 and a second fixed frame 27-12 arranged at intervals along the second direction Y, and the intermediate shaft 27-2 is arranged on one side of the driving groove along the second direction Y, and the intermediate shaft 27-2 is fixedly connected to the fixed frame 27-1. Further, the two ends of the intermediate shaft 27-29 are fixedly connected to the first fixed frame 27-11 and the second fixed frame 27-12 respectively.

[0207] Please refer to the attached Fig.13 As shown, the driving connecting member 27 of the present application also includes a swing ring 27-3, which is arranged around the driving groove 24-1, and the swing ring 27-3 is a semicircular ring to form a half wrapping of the moving member. The swing ring 27-3 is rotatably connected to the intermediate shaft 27-2 through a rotating sleeve 27-5. Further, the rotating sleeve 27-5 is located between the first fixed frame 27-11 and the second fixed frame 27-12. The swing ring 27-3 is provided with swing columns 27-4 on both sides along the second direction Y. The swing column 27-4 on one side of the swing ring 27-3 extends outward and is connected to the first connecting member 250 to transmit the linear motion of the moving shaft. The swing columns 27-4 on both sides of the swing ring 27-3 extend inward and are located in the driving groove 24-1. Wherein, under the drive of the moving shaft, the swing column 27-4 is respectively against the first side and the second side.

[0208] Attached Fig.14 This is a structural diagram of the transmission shaft of this application. Please refer to the attached Fig.14 As shown, the transmission shaft of the present application includes a first transmission section 22-1 and a second transmission section 22-2 which are sequentially arranged along the first direction X, the first transmission section 22-1 is an optical axis, the first transmission section 22-1 is rotatably connected to the first transmission member 23-1, the second transmission section 22-2 is provided with an external spline, and the second transmission section 22-2 is spline-connected to the moving member 24. A third transmission section 22-3 is provided on the side of the first transmission section 22-1 away from the second transmission section 22-2, and a third transmission member 26 is provided on the third transmission section 22-3. A fifth transmission section 22-5 is provided on the side of the second transmission section 22-2 away from the first transmission section 22-1, a fourth transmission section 22-4 is provided on the side of the third transmission section 22-3 away from the first transmission section 22-1, and both the fourth transmission section 22-4 and the fifth transmission section 22-5 are rotatably connected to the housing.

[0209] Attached Fig.15 This is a schematic diagram of the structure of the speed change assembly 30 of the present application. Fig.15As shown, the first direction X in the present application refers to the up-down direction of the speed change assembly 30, that is, the direction from top to bottom of the speed change assembly 30 or the direction from bottom to top of the speed change assembly 30. In the present application, the power input member 400 and the cooling fan 760 are located above the first driving wheel 610 and the second driving wheel 710, and the first driving wheel 610 and the second driving wheel 710 are located below the power input member 400 and the cooling fan 760.

[0210] Please refer to the attached Fig.15 As shown, the speed change assembly 30 of the present application includes a first speed change structure 600 and a power input member 400, and the power input member 400 is connected to the first speed change structure 600 to realize power input. In the present application, the power input member 400 is driven by gears or pulleys to realize the rotation of the first speed change structure 600.

[0211] Please refer to the attached Fig.15 As shown, the first speed change structure 600 in the present application includes a second transmission shaft 630 arranged along the first direction X, and the power input member 400 is transmission-connected to the second transmission shaft 630 to drive the second transmission shaft 630 to rotate.

[0212] Please refer to the attached Fig.15 As shown, the first speed change structure 600 of the present application also includes a first drive wheel 610, which is transmission-connected to the second transmission shaft 630. The power input member 400 drives the first drive wheel 610 to rotate via the second transmission shaft 630, thereby indirectly realizing the transmission connection between the power input member 400 and the first drive wheel 610.

[0213] Please refer to the attached Fig.15 As shown, the first speed change structure 600 of the present application further includes a first support frame 640, which is arranged on one side of the first driving wheel 610 along the first direction X, and the first support member is sleeved outside the first driving wheel 610. Further, the first support frame 640 is arranged between the power input member 400 and the first driving wheel 610, and the first support frame 640 is rotatably connected to the second transmission shaft 630 through the second rotating member 650, that is, the second transmission shaft 630 can rotate relative to the first support frame 640. In the present application, the first support frame 640 is fixed to the case of the gearbox by a fixed connection, and the first driving wheel 610, the power input member 400, etc. all rotate relative to it.

[0214] In one embodiment, the second rotating member 650 is a bearing or a sleeve.

[0215] In one embodiment, the first support frame 640 includes a rotating portion and a connecting leg 642, the rotating portion is rotatably connected to the second transmission shaft 630, and simultaneously realizes the fixing of the axial position of the second transmission shaft 630 and even the first speed change structure 600. The connecting leg 642 extends radially outwardly along the rotating portion and is fixed to the housing of the gearbox. It should be noted that the setting of the connecting leg 642 should not interfere with the components of the speed change assembly 30 to avoid affecting the normal operation of the components.

[0216] Please refer to the attached Fig.15 As shown, the first speed change structure 600 of the present application further includes an isolation pad 680, which is sleeved outside the second transmission shaft 630, and is disposed between the second rotating member 650 and the power input member 400, so as to realize the isolation of the power input member 400 from the first support frame 640 by lifting the power input member 400. The isolation pad 680 abuts against the power input member 400 and the second rotating member 650 respectively, and further, when the second rotating member 650 is a bearing, the isolation pad 680 abuts against the inner ring of the second rotating member 650, and the isolation pad 680 rotates synchronously with the second transmission shaft 630 under the clamping of the second rotating member 650 and the power input member 400.

[0217] Please refer to the attached Fig.15 As shown, the speed change assembly 30 of the present application further includes a second motion switching member 300, which is disposed on one side of the first driving wheel 610 along the first direction X. In the present application, the second motion switching member 300 and the first support frame 640 are respectively disposed on both sides of the first driving wheel 610 along the first direction X. The second motion switching member 300 is used to adjust the transmission ratio of the speed change assembly 30, and further to increase or decrease the speed of the speed change assembly 30.

[0218] Please refer to the attached Fig.15 As shown, the speed change assembly 30 of the present application further includes a second speed change structure 700 and a power output member 500, and the power output member 500 is connected to the third transmission shaft 720 to achieve power output. In the present application, the power output member 500 uses a gear transmission or a pulley transmission to achieve the power output of the speed change assembly 30.

[0219] Please refer to the attached Fig.15 As shown, the second speed change structure 700 of the present application includes a third transmission shaft 720 arranged along the first direction X, and the power output member 500 is transmission-connected to the third transmission shaft 720 to achieve power output of the speed change assembly 30 .

[0220] In one embodiment, the second transmission shaft 630 is arranged in parallel with the third transmission shaft 720. The parallel arrangement of the second transmission shaft 630 and the third transmission shaft 720 is only for better transmission of power between the first speed change structure 600 and the second speed change structure 700. The parallel arrangement of the second transmission shaft 630 and the third transmission shaft 720 is only a specific implementation of the positional relationship between the second transmission shaft 630 and the third transmission shaft 720. The positional relationship between the second transmission shaft 630 and the third transmission shaft 720 is not limited to the parallel arrangement.

[0221] Please refer to the attached Fig.15 As shown, the second speed change structure 700 of the present application also includes a second drive wheel 710, which is transmission-connected to the third transmission shaft 720. The second drive wheel 710 drives the power output member 500 to rotate via the third transmission shaft 720, thereby indirectly realizing the transmission connection between the power output member 500 and the second drive wheel 710.

[0222] Please refer to the attached Fig.15 As shown, the second speed change structure 700 of the present application further includes a second transmission sleeve 740 , which is transmission-connected to the third transmission shaft 720 , and the third transmission shaft 720 drives the second transmission sleeve 740 to rotate synchronously.

[0223] Please refer to the attached Fig.15 As shown, the second speed change structure 700 of the present application further includes a second support frame 730, which is arranged on one side of the second driving wheel 710 along the first direction X, and the second support frame 730 is rotatably connected through the fifth rotating member, the second transmission sleeve 740, that is, the third transmission shaft 720 and the second transmission sleeve 740 rotate relative to the second support frame 730. In the present application, the second support frame 730 is fixed to the case of the gearbox by a fixed connection, and the second driving wheel 710, the power output member 500, etc. all rotate relative to it.

[0224] In one embodiment, the fifth rotating member is a bearing or a sleeve.

[0225] In one embodiment, the second support frame 730 includes a rotating portion and a connecting leg 642, the rotating portion is rotatably connected to the third transmission shaft 720, and simultaneously realizes the fixing of the axial position of the third transmission shaft 720 and even the second speed change structure 700. The connecting leg 642 extends radially outwardly along the rotating portion and is fixed to the housing of the gearbox. It should be noted that the setting of the connecting leg 642 should not interfere with the components of the speed change assembly 30 to avoid affecting the normal operation of the components.

[0226] Please refer to the attached Fig.15As shown, the second speed change structure 700 of the present application also includes a cooling fan 760, which is arranged on the side of the second support frame 730 away from the second drive wheel 710. The cooling fan 760 is fixedly connected to the third transmission shaft 720 or the second transmission sleeve 740, so that the rotation of the third transmission shaft 720 drives the cooling fan 760 to rotate, thereby further cooling the speed change assembly 30.

[0227] Please refer to the attached Fig.15 As shown, the second speed change structure 700 of the present application further includes a fourth elastic member 770, which is respectively offset against the second transmission sleeve 740 and the second driving wheel 710, and the fourth elastic member 770 is used to adjust the transmission ratio of the speed change assembly 30, and further to increase or decrease the speed of the speed change assembly 30. The working process of the fourth elastic member 770 will be further explained in the subsequent drawings.

[0228] Please refer to the attached Fig.15 As shown, the second speed change structure 700 of the present application further includes a driving belt 800 , which is respectively sleeved outside the first driving wheel 610 and the second driving wheel 710 to transmit power between the first driving wheel 610 and the second driving wheel 710 .

[0229] Furthermore, in the present application, when the first rotating member 100 rotates forward, the second motion switching member 300 can be used to drive the speed change assembly 30 to achieve acceleration, and when the first rotating member 100 rotates reversely, the second motion switching member 300 can also be used to drive the speed change assembly 30 to achieve acceleration. However, in order to further cooperate with the shift assembly 20, the maximum rotation speed of the speed change assembly 30 when the first rotating member 100 rotates forward is greater than the maximum rotation speed of the speed change assembly 30 when the first rotating member 100 rotates reversely. That is, when the first rotating member 100 rotates forward, the shift assembly 20 forms a forward gear, and the speed change assembly 30 forms an acceleration. When the first rotating member 100 rotates reversely, the shift assembly 20 forms a reverse gear, and the speed change assembly 30 forms an acceleration. When the maximum speed of the gearbox in the forward gear is greater than the maximum speed of the gearbox in the reverse gear. The adjustment of the maximum speed of the gearbox is achieved by displaying the maximum rotation angle of the first rotating member 100.

[0230] Attached Fig.16 This is a cross-sectional view of the first speed change structure 600 of the present application. Fig.16 As shown, the first direction X in the present application refers to the up-down direction of the first speed change structure 600, that is, the direction from top to bottom of the first speed change structure 600 or the direction from bottom to top of the first speed change structure 600. In the present application, the position of the power input member 400 is above the first driving wheel 610 relative to the first driving wheel 610, and the position of the first driving wheel 610 is below the power input member 400 relative to the power input member 400.

[0231] Please refer to the attached Fig.16 As shown, the first speed change structure 600 of the present application includes a second transmission shaft 630, and the second transmission shaft 630 is arranged along the first direction X. A rotation connection, a transmission connection, or a movable connection is formed between the second transmission shaft 630 and other components of the first speed change structure 600. A third rotation axis 631 is arranged in the second transmission shaft 630 along the first direction X, and the second transmission shaft 630 rotates circumferentially around the third rotation axis 631 as the center.

[0232] Please refer to the attached Fig.16 As shown, the first speed change structure 600 of the present application also includes a power input member 400 and a first support frame 640. The first support frame 640 is rotatably connected to the second transmission shaft 630 through a second rotating member 650. The power input member 400 is arranged at the top of the first support frame 640 along the first direction X, and the power input member 400 is fixed to the second transmission shaft 630 through a second fixing member 410.

[0233] In one embodiment, the second fixing member 410 is a fixing nut, the power input member 400 is a gear or a pulley, a through hole is provided on the power input member 400 along the first direction X, the second transmission shaft 630 passes through the through hole of the power input member 400, and one section of the second transmission shaft 630 passes through the through hole of the power input member 400, the fixing cap is threadedly connected to the section of the second transmission shaft 630, and the power input member 400 is fixed on the second transmission shaft 630.

[0234] In the present application, the first support frame 640 is composed of a plurality of outwardly extending connecting legs 642 , which are arranged circumferentially around the second transmission shaft 630 to form a receiving space within the connecting legs 642 , and the receiving space wraps a portion of the second transmission shaft 630 .

[0235] In one embodiment, a first fixing hole 641 is disposed at the bottom of the connecting leg 642 of the first supporting frame 640 , and the first supporting frame 640 is connected to the housing of the gearbox through the first fixing hole 641 .

[0236] Please refer to the attached Fig.16 As shown, the first speed change structure 600 of the present application also includes an isolation pad 680, which is sleeved on the outside of the second transmission shaft 630, and the isolation pad 680 is arranged between the power input member 400 and the second rotating member 650. Through the pre-tightening of the second fixing member 410, the power input member 400 moves toward the isolation pad 680 and abuts against the isolation pad 680, thereby achieving the fastening of the power input member 400. Furthermore, the isolation pad 680 is used to lift the power input member 400, thereby achieving the isolation of the power input member 400 and the first support frame 640, and preventing the first support frame 640 from interfering with the power input member 400 in movement.

[0237] In one embodiment, the second rotating member 650 is a bearing or a sleeve. Further, when the second rotating member 650 is a bearing, the isolation pad 680 abuts against the inner ring of the second rotating member 650 , and the isolation pad 680 rotates synchronously with the second transmission shaft 630 under the clamping of the second rotating member 650 and the power input member 400 .

[0238] Please refer to the attached Fig.16 As shown, the first speed change structure 600 of the present application also includes a first drive wheel 610, which is transmission-connected to the second transmission shaft 630. In the present application, the power input member 400 drives the first drive wheel 610 to rotate synchronously via the second transmission shaft 630. The first drive wheel 610 is located in the accommodating space formed by the first support frame 640, and the drive belt 800 is confined in the accommodating space while avoiding interference of the first support frame 640 with the rotation of the first drive wheel 610.

[0239] In one embodiment, the third rotation axis 631 of the second transmission shaft 630 coincides with the rotation center of the first driving wheel 610 .

[0240] The first driving wheel 610 is formed by a first wheel rim 611 and a second wheel rim 612 arranged at intervals along the first direction X, the spacing between the first wheel rim 611 and the second wheel rim 612 is adjustable, the first wheel rim 611 and the second wheel rim 612 of the first driving wheel 610 are both connected to the second transmission shaft 630 in a transmission manner, and in the present application, the first wheel rim 611 is arranged close to the first support frame 640, and the second wheel rim 612 is arranged away from the first support frame 640. In the present application, the side of the first wheel rim 611 of the first driving wheel 610 facing the second wheel rim 612 of the first driving wheel 610 is the first side surface, and the side of the second wheel rim 612 of the first driving wheel 610 facing the first wheel rim 611 of the first driving wheel 610 is the second side surface, the first side surface and the second side surface are both arranged circumferentially outside the second transmission shaft 630, and the first side surface and the second side surface are both arranged upwardly tilted from the inside to the outside, so as to form a driving cavity 620 located between the first wheel rim 611 and the second wheel rim 612 of the first driving wheel 610. In the present application, the side of the first side and the second side close to the second transmission shaft 630 is the inner side, and the side of the first side and the second side away from the second transmission shaft 630 is the outer side. Furthermore, the spacing between the first side and the second side gradually increases from the inside to the outside, and the cross-sectional area of ​​the driving cavity 620 also gradually increases from the inside to the outside.

[0241] In the present application, the first wheel rim 611 of the first driving wheel 610 is movably connected to the second transmission shaft 630, and the second wheel rim 612 of the first driving wheel 610 forms an axial limit with the second transmission shaft 630. The first speed change structure 600 of the present application also includes a fourth rotating member 660, which is arranged between the first wheel rim 611 and the second wheel rim 612 of the first driving wheel 610, and the fourth rotating member 660 is sleeved outside the second transmission shaft 630, so that the second wheel rim 612 of the first driving wheel 610 is arranged between the second rotating member 650 and the fourth rotating member 660, and the second wheel rim 612 of the first driving wheel 610 is respectively against the second rotating member 650 and the fourth rotating member 660 to form an axial limit of the second wheel rim 612 of the first driving wheel 610.

[0242] In one embodiment, the second rotating member 650 and the fourth rotating member 660 are both bearings, and the second rim 612 of the first driving wheel 610 is respectively abutted against the inner rings of the second rotating member 650 and the fourth rotating member 660 to achieve synchronous rotation of the second rim 612 of the first driving wheel 610, the inner rings of the second rotating member 650 and the fourth rotating member 660, and the second transmission shaft 630.

[0243] In one embodiment, the first rim 611 of the first driving wheel 610 and the second transmission shaft 630 are connected by a spline or a flat key, so as to realize the transmission connection between the first rim 611 of the first driving wheel 610 and the second transmission shaft 630 and the movable connection between the first rim 611 of the first driving wheel 610 and the second transmission shaft 630 at the same time.

[0244] Please refer to the attached Fig.16 As shown, the first speed change structure 600 of the present application also includes a third elastic member 670, and the third elastic member 670 is sleeved outside the second transmission shaft 630, and the third elastic member 670 is abutted against the fourth rotating member 660 and the first wheel rim 611 of the first driving wheel 610. Because the first wheel rim 611 of the first driving wheel 610 is movably connected to the second transmission shaft 630, and when the fourth rotating member 660 and the second transmission shaft 630 are fixed, the third elastic member 670 always drives the first wheel rim 611 of the first driving wheel 610 to move downward.

[0245] In one embodiment, the first wheel rim 611 of the first driving wheel 610 is convex downwardly shaped with a protrusion, and an annular cavity 613 is formed in the protrusion, and the annular cavity 613 is arranged around the second transmission shaft 630. Part of the third elastic member 670 is located in the annular cavity 613, and the third elastic member 670 abuts against the bottom of the annular cavity 613. The arrangement of the protrusion and the annular cavity 613 can increase the distance from the abutment point of the third elastic member 670 and the fourth rotating member 660 to the abutment point of the third elastic member 670 and the first wheel rim 611 of the first driving wheel 610, thereby increasing the length of the third elastic member 670, and further increasing the driving force of the third elastic member 670 on the first wheel rim 611 of the first driving wheel 610.

[0246] Please refer to the attached Fig.16 As shown, the speed shift assembly 30 of the present application also includes a motion switching member, which includes a first rotating sleeve 27-5 and a second rotating sleeve 27-5 which are arranged in an upper and lower manner. The second rotating sleeve 27-5 is located above the first rotating sleeve 27-5, and the second rotating sleeve 27-5 is against the first wheel rim 611 of the first driving wheel 610. The mutual movement between the first rotating sleeve 27-5 and the second rotating sleeve 27-5 can realize the upward movement of the first wheel rim 611 of the first driving wheel 610 and shorten the distance between the first wheel rim 611 and the second wheel rim 612 of the first driving wheel 610.

[0247] Please refer to the attached Fig.16 As shown, the speed change assembly 30 of the present application further includes a drive belt 800, which is sleeved in the drive cavity 620 of the first drive wheel 610, and the drive belt 800 includes a first rim 611 of the first drive wheel 610 and a second rim 612 of the first drive wheel 610 respectively abutting against the first drive wheel 610 along the first direction X. The distance between the drive belt 800 and the rotation center of the first drive wheel 610 is the first distance 810, that is, the distance between the drive belt 800 and the third rotation axis 631 of the second transmission shaft 630 is the first distance 810. Under the movement of the first rim 611 of the first drive wheel 610, the length of the first distance 810 can be variably set.

[0248] In the present application, the fourth rotating member 660 can also form a rotational motion with the driving belt 800 at the same time.

[0249] In one embodiment, the second transmission sleeve 740 is rotatably connected to the first wheel rim 611 of the first driving wheel 610 via the eighth rotating member 360. Further, the eighth rotating member 360 is a bearing or a sleeve.

[0250] Please refer to the attached Fig.16As shown, the specific working process of the first speed change structure 600 of the present application is that the first rotating sleeve 27-5 and the second rotating sleeve 27-5 rotate relative to each other. During the mutual rotation process, the first rotating sleeve 27-5 drives the second rotating sleeve 27-5 to move upward, and the second rotating sleeve 27-5 abuts against the first wheel rim 611 of the first driving wheel 610, driving the first wheel rim 611 of the first driving wheel 610 to move close to the second wheel rim 612 of the first driving wheel 610. The spacing between the first wheel rim 611 and the second wheel rim 612 of the first driving wheel 610 is The first distance 810 is gradually increased by the first distance 810, and the increase in the first distance 810 represents an increase in the transmission radius of the drive belt 800 on the first driving wheel 610, and the transmission ratio of the speed change assembly 30 is also reduced, thereby increasing the speed of the speed change assembly 30.

[0251] Attached Fig.17 Attached is a cross-sectional view of the second speed change structure 700 of the present application. Fig.18 This is a structural diagram of the second speed change structure 700 of the present application. Fig.17 And attached Fig.18 As shown, the first direction X of the present application refers to the up-down direction of the second speed change structure 700, that is, the direction from top to bottom of the second speed change structure 700 or the direction from bottom to top of the second speed change structure 700. In the present application, the position of the cooling fan 760 is above the second driving wheel 710 relative to the second driving wheel 710, and the position of the second driving wheel 710 is below the cooling fan 760 relative to the cooling fan 760.

[0252] Please refer to the attached Fig.17 And attached Fig.18 As shown, the second speed change structure 700 of the present application includes a fourth transmission shaft, which is arranged along the first direction X. A rotation connection, a transmission connection or a movable connection is formed between the fourth transmission shaft and other components of the second speed change structure 700. A fourth rotation axis 721 is arranged in the fourth transmission shaft along the first direction X, and the fourth transmission shaft rotates circumferentially around the fourth rotation axis 721 as the center.

[0253] Please refer to the attached Fig.17 And attached Fig.18As shown, the second transmission structure 700 of the present application also includes a second transmission sleeve 740, and the second transmission sleeve 740 includes a first transmission part, a second transmission part and an abutment part arranged along the first direction X. The first transmission part is fixedly connected to the second transmission part. Further, the cross-sectional area of ​​the first transmission part is smaller than the cross-sectional area of ​​the second transmission part. A first transmission hole is provided through the first transmission part, and a second transmission hole is provided through the second transmission part. The first transmission hole is connected to the second transmission hole. The side of the second transmission part away from the first transmission part is an abutment part, and the abutment part is formed by a radial annular protrusion. Further, the first transmission part is fixedly connected to the transmission shaft through the first transmission hole to realize the transmission connection between the second transmission sleeve 740 and the second transmission part. The second transmission hole and the second transmission hole are clearance-matched.

[0254] Please refer to the attached Fig.17 And attached Fig.18 As shown, the second speed change structure 700 of the present application further includes a second support frame 730, and the second transmission portion of the second transmission sleeve 740 is rotatably connected to the second support frame 730 via a fifth rotating member.

[0255] In the present application, the second support frame 730 is composed of a plurality of outwardly extending connecting legs 642, which are arranged circumferentially around the fourth transmission shaft to form a receiving space within the connecting legs 642, and the receiving space wraps a portion of the fourth transmission shaft.

[0256] In one embodiment, a second fixing hole 731 is disposed at the bottom of the connecting leg 642 of the second supporting frame 730 , and the second supporting frame 730 is connected to the housing of the gearbox through the second fixing hole 731 .

[0257] In one embodiment, the fifth rotating member is a bearing or a sleeve. When the second support frame 730 is fixed, the fourth transmission shaft rotates around the fourth rotation axis 721 in the second support frame 730 in a circumferential direction.

[0258] Please refer to the attached Fig.17 And attached Fig.18 As shown, the second speed change structure 700 of the present application further includes a cooling fan 760, which is sleeved outside the second support frame 730, and there is a rotation gap between the cooling fan 760 and the second support frame 730 to avoid interference between the cooling fan 760 and the second support frame 730 when rotating. Further, the cooling fan 760 is fixed to the second transmission sleeve 740 and the fourth transmission shaft through the third fixing member 761. Therefore, when the fourth transmission shaft rotates, the cooling fan 760 is synchronously driven to rotate, thereby achieving cooling of the speed change assembly 30.

[0259] Please refer to the attached Fig.17 And attached Fig.18As shown, the second speed change structure 700 of the present application further includes a second drive wheel 710, which is transmission-connected with the fourth transmission shaft. In the present application, the transmission connection means that the second drive wheel 710 can realize synchronous rotation with the fourth transmission shaft under the drive of the fourth transmission shaft. The second drive wheel 710 is located in the accommodation space formed by the second support frame 730, and the drive belt 800 is restricted in the accommodation space while avoiding the second support frame 730 from interfering with the rotation of the second drive wheel 710.

[0260] In one embodiment, the fourth rotation axis 721 of the fourth transmission shaft coincides with the rotation center of the second driving wheel 710 .

[0261] Among them, the second driving wheel 710 is formed by a first rim 611 and a second rim 612 arranged at intervals along the first direction X. The first rim 611 and the second rim 612 of the second driving wheel 710 are both connected to the fourth transmission shaft in transmission. In the present application, the first rim 611 is arranged close to the second support frame 730, and the second rim 612 is arranged away from the second support frame 730. In the present application, the side of the first rim 611 of the second driving wheel 710 facing the second rim 612 of the second driving wheel 710 is the first side, and the side of the second rim 612 of the first driving wheel 610 facing the first rim 611 of the first driving wheel 610 is the second side. The first side and the second side are both arranged circumferentially outside the fourth transmission shaft, and the first side and the second side are both arranged upwardly tilted from the inside to the outside to form a driving cavity 620 located between the first rim 611 and the second rim 612 of the second driving wheel 710. In the present application, the side of the first side and the second side close to the fourth transmission shaft is the inside, and the side of the first side and the second side away from the fourth transmission shaft is the outside. Further, the distance between the first side and the second side increases from the inside to the outside, and the cross-sectional area of ​​the driving cavity 620 also gradually increases from the inside to the outside.

[0262] In the present application, the first rim 611 of the first driving wheel 610 is movably connected to the fourth transmission shaft, and the fourth transmission shaft outer shell is provided with a sixth rotating member 780, which is arranged at the bottom of the second rim 612 of the second driving wheel 710 to form an axial limit of the second driving wheel 710.

[0263] In one embodiment, the first rim 611 of the second drive wheel 710 is connected to the fourth transmission shaft via a spline or a flat key, thereby realizing a transmission connection between the first rim 611 of the second drive wheel 710 and the fourth transmission shaft and a movable connection between the first rim 611 of the second drive wheel 710 and the fourth transmission shaft.

[0264] Please refer to the attached Fig.17 And attached Fig.18As shown, the second speed change structure 700 of the present application also includes a fourth elastic member 770, which is sleeved on the outside of the fourth transmission shaft, and the fourth elastic member 770 respectively abuts against the abutment portion of the second transmission sleeve 740 and the first wheel rim 611 of the second drive wheel 710. Because the first wheel rim 611 of the second drive wheel 710 is movably connected to the fourth transmission shaft, and when the second transmission sleeve 740 and the fourth transmission shaft are fixed, the fourth elastic member 770 always drives the first wheel rim 611 of the second drive wheel 710 to move downward.

[0265] In one embodiment, the first wheel rim 611 of the second driving wheel 710 has a protruding portion protruding upward, and an annular cavity 613 is formed in the protruding portion. The annular cavity 613 is arranged around the fourth transmission shaft, and part of the fourth elastic member 770 is located in the annular cavity 613, and the fourth elastic member 770 abuts against the bottom of the annular cavity 613. The arrangement of the protruding portion and the annular cavity 613 can increase the distance from the abutment point of the fourth elastic member 770 and the second transmission sleeve 740 to the abutment point of the fourth elastic member 770 and the first wheel rim 611 of the second driving wheel 710, thereby increasing the length of the fourth elastic member 770, and further increasing the driving force of the fourth elastic member 770 on the first wheel rim 611 of the second driving wheel 710.

[0266] Please refer to the attached Fig.17 And attached Fig.18 As shown, the transmission assembly 30 of the present application also includes a drive belt 800, which is sleeved in the drive cavity 620 of the first drive wheel 610 and the second drive wheel 710, that is, the drive wheel is sleeved outside the first drive wheel 610 and the second drive wheel 710 to transmit power between the first drive wheel 610 and the second drive wheel 710.

[0267] The driving belt 800 includes a first wheel rim 611 of the second driving wheel 710 and a second wheel rim 612 of the second driving wheel 710 respectively along the first direction X. The distance between the driving belt 800 and the rotation center of the second driving wheel 710 is the second distance 820, that is, the distance between the driving belt 800 and the fourth rotation axis 721 of the fourth transmission shaft is the second distance 820. Under the movement of the first wheel rim 611 of the second driving wheel 710, the length of the first distance 810 can be variably set.

[0268] Please refer to the attached Fig.17 And attached Fig.18 As shown, the speed change assembly 30 of the present application also includes a power output member 500, and the second drive wheel 710 is connected to the fourth transmission shaft. The second drive wheel 710 drives the power output member 500 to rotate through the fourth transmission shaft, that is, the power output member 500 and the second drive wheel 710 are indirectly connected to each other.

[0269] Please refer to the attached Fig.17 And attached Fig.18 As shown, the specific working process of the second speed change structure 700 of the present application is that the second speed change structure 700 is a driven member and moves according to the movement of the first speed change structure 600. In the present application, the first spacing gradually increases during the movement of the first wheel rim 611 of the first driving wheel 610, so the driving belt 800 has a process of moving toward the first speed change structure 600 as a whole. When the total length of the driving belt 800 remains unchanged, the spacing between the driving belt 800 and the fourth transmission shaft will gradually decrease, that is, the second spacing will gradually decrease. At the same time, the driving belt 800 will push the first wheel rim 611 of the second driving wheel 710 upward. The reduction of the second distance 820 represents that the transmission radius of the driving belt 800 on the second driving wheel 710 is reduced, and the transmission ratio of the speed change assembly 30 is also reduced, and the speed change assembly 30 achieves an increase in speed. On the contrary, when the first spacing gradually decreases, the driving belt 800 moves as a whole toward the second speed change structure 700. The first spacing gradually decreases, so the driving belt 800 moves as a whole toward the second speed change structure 700. When the growth of the driving belt 800 remains constant, the spacing between the driving belt 800 and the fourth transmission shaft will gradually increase, that is, the second spacing gradually increases. The increase in the second spacing represents that the transmission radius of the driving belt 800 on the second driving wheel 710 increases, and the transmission ratio of the speed change assembly 30 also increases, and the speed change assembly 30 achieves deceleration.

[0270] Therefore, the first distance 810 and the second distance 820 can be variably set, and the first distance 810 and the second distance 820 can be changed in inverse proportion to change the transmission ratio between the first driving wheel 610 and the second driving wheel 710 .

[0271] Please refer to the attached Figure 1 To Attachment Fig.18As shown, the specific working process of the gearbox of the present application is to step on the forward pedal, the first rotating member 100 rotates forward, the connecting rod 340 drives the second rotating motion structure 310 to rotate, and at the same time drives the second linear motion structure 320 to move through the second matching portion 330, further drives the first wheel 611 of the first driving wheel 610 to approach the second wheel 612 of the first driving wheel 610, and at the same time drives the first wheel 611 of the second driving wheel 710 away from the second wheel 612 of the second driving wheel 710, so as to achieve the acceleration of the speed change assembly 30, and at the same time, when the first rotating member 100 rotates forward, the first rotating member 100 synchronously drives the first rotating motion structure 210 to rotate, and drives the first linear motion structure 220 to move through the first matching portion 230, so as to realize the combination of the moving member 24 and the first transmission member 23-1 to form the forward gear. On the contrary, by stepping on the reverse pedal, the acceleration and reverse gear can be simultaneously realized. In order to form a control action, the shift assembly 20 and the speed change assembly 30 can be driven to work at the same time. Furthermore, when the forward pedal or the reverse pedal is released, the shift assembly 20 will automatically form a neutral gear due to the presence of the elastic members, and the speed change assembly 30 will automatically restore the initial speed.

[0272] Embodiment 3:

[0273] The present application provides a lawn mower, which includes the gearbox in Embodiment 2. The specific structure of the control assembly 10 in the gearbox is as described in Embodiment 1, and will not be repeated in this embodiment.

[0274] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0275] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A control assembly for driving a shift assembly and a speed change assembly, characterized in that: The control component includes: a first rotating member, the first rotating member being used to achieve rotational motion; A first motion switching member, the first motion switching member is connected to the first rotating member to switch the rotational motion of the first rotating member into a linear motion and drive the shift assembly to achieve gear shifting; A second motion switching member, the second motion switching member is connected to the first rotating member to switch the rotational motion of the first rotating member into a linear motion and drive the speed change assembly to achieve speed regulation; When the first rotating member rotates, the control component includes a first control state and a second control state; wherein, In the first control state, the first rotating member rotates forward, the first rotating member drives the speed change assembly through the second motion switching member to form an acceleration, and the first rotating member drives the shift assembly through the first motion switching member to form a forward gear; In the second control state, the first rotating member rotates in the opposite direction, the first rotating member drives the speed change assembly to accelerate through the second motion switching member, and the first rotating member drives the shift assembly to reverse gear through the first motion switching member.

2. The control assembly according to claim 1, characterized in that: The first motion switching member is used to switch the rotational motion of the first rotating member into a linear motion along a first direction; The second motion switching member is used to switch the rotational motion of the first rotating member into a linear motion along a second direction, and the first direction intersects with the second direction.

3. The control assembly according to claim 2, characterized in that: The first motion switching member includes: a first rotational movement structure, wherein the first rotational movement structure performs circumferential rotation about a first rotation axis, and the first rotation axis is arranged along the first direction; A first linear motion structure and a first matching portion, wherein the first rotational motion structure is connected to the first linear motion structure via the first matching portion to switch the circumferential rotation of the first rotational motion structure into linear motion of the first linear motion structure along the first direction.

4. The control assembly according to claim 3, characterized in that: The second motion switching member includes: a second rotational movement structure, wherein the second rotational movement structure performs circumferential rotation about a second rotation axis, and the second rotation axis is arranged along the second direction; A second linear motion structure and a second matching portion, wherein the second rotational motion structure is connected to the second linear motion structure via the second matching portion to switch the circumferential rotation of the second rotational motion structure into linear motion of the second linear motion structure along the second direction.

5. The control assembly according to claim 4, characterized in that: The first rotating member rotates circumferentially around the central axis of the first rotating member, and the central axis of the first rotating member is parallel to the first rotating axis; The first rotating member is connected to the first rotating motion structure to drive the first rotating motion structure to rotate around the first rotating axis; The first rotating member is connected to the second rotating motion structure via a connecting rod arranged along a third direction to drive the second rotating motion structure to rotate around the second rotating axis.

6. The control assembly according to claim 1, characterized in that: The first rotating member comprises: A fixed shaft and a first transmission sleeve, wherein the fixed shaft is fixedly connected to the fixing member, and the first transmission sleeve is sleeved outside the fixed shaft; A first clamping member, a second clamping member and a first elastic member, wherein the first clamping member and the second clamping member are both rotatably connected to the first transmission sleeve, the first elastic member is sleeved outside the first transmission sleeve, the first elastic member is respectively abutted against the first clamping member and the second clamping member to drive the first clamping member and the second clamping member to approach each other, and a clamping space is formed between the first clamping member and the second clamping member; A connecting plate, the connecting plate being rotatably connected to the first transmission sleeve, the connecting plate being provided with a driving column and a balancing column, the driving column extending toward the clamping space and abutting against the first clamping member and the second clamping member; A transmission plate, wherein the transmission plate is located in the clamping space, the first clamping member and the second clamping member are respectively arranged on both sides of the transmission plate, and the first clamping member and the second clamping member are against the transmission plate; A driving plate, wherein the driving plate is rotationally connected to the first transmission sleeve, the driving plate is fixedly connected to the connecting plate via the driving column and the balancing column, and the driving plate is used to drive the driving column to rotate around the first transmission sleeve.

7. The control assembly according to claim 3, characterized in that: The first rotational motion structure is a cylindrical part, a rotation cavity is provided in the first rotational motion structure, the first linear motion structure is located in the rotation cavity of the first rotational motion structure, and the first linear motion structure is rotationally connected to the first rotational motion structure; The first matching portion includes a sliding groove and a sliding column, the sliding groove is arranged in one of the first linear motion structure or the first rotational motion structure, and the sliding groove is arranged in the other of the first linear motion structure or the first rotational motion structure; wherein, When the first rotational motion structure rotates, the sliding post slides in the sliding groove and drives the first linear motion structure to move linearly along the first direction.

8. The control assembly according to claim 7, characterized in that: The sliding groove is formed by a first sliding arc and a second sliding arc that are arranged at an interval, wherein the first sliding arc is arranged toward the first linear motion structure, and the second sliding arc is arranged away from the first linear motion structure.

9. The control assembly according to claim 5, characterized in that: The second linear motion structure and the second rotational motion structure are both cylindrical parts, the second rotational motion structure is connected to the connecting rod, and the second rotational motion structure is located at the bottom of the second linear motion structure; The second matching portion includes a limiting protrusion group and a limiting groove group, and the second rotational motion structure and the second linear motion structure are both provided with the limiting protrusion group and the limiting groove group, the limiting protrusion group is gradually reduced outward from one end connected to the second rotational motion structure or the second linear motion structure, and the limiting groove group is gradually increased outward from one end connected to the second rotational motion structure or the second linear motion structure, and under the rotation of the second rotational motion structure, the limiting protrusion group interacts with the limiting groove group to lift the second linear motion structure while driving the second linear motion structure to rotate; wherein, The limiting protrusion group of the second rotational motion structure and the second linear motion structure is formed by a first limiting protrusion and a second limiting protrusion arranged at a circumferential interval, and the limiting groove group of the second rotational motion structure and the second linear motion structure is formed by a first limiting groove and a second limiting groove arranged at a circumferential interval, and the first limiting groove and the second limiting groove are both located between the first limiting protrusion and the second limiting protrusion.

10. A gearbox, characterized in that: The control assembly comprises any one of claims 1 to 9, wherein the gearbox further comprises: a shift assembly connected to the first motion switching member; A speed change assembly is connected to the second motion switching member.

11. The gearbox according to claim 10, characterized in that: The speed change assembly comprises: Power input parts, power output parts; A first driving wheel and a second driving wheel, the power input member is drivingly connected to the first driving wheel, and the power output member is drivingly connected to the second driving wheel; wherein The first driving wheel and the second driving wheel are formed by a first wheel rim and a second wheel rim which are spaced apart from each other, a driving cavity is formed between the first wheel rim and the second wheel rim, the distance between the first wheel rim and the second wheel rim increases gradually from inside to outside, and the first wheel rim can move relative to the second wheel rim to change the distance between the first wheel rim and the second wheel rim; A driving belt, wherein the driving belt is respectively sleeved outside the first driving wheel and the second driving wheel to transmit power between the first driving wheel and the second driving wheel; wherein, The distance between the driving belt and the rotation center of the first driving wheel is a first distance; The distance between the rotation center of the driving belt and the second driving wheel is a second distance; Under the action of the second motion switching member, the first rim moves relative to the second rim, and the length of the driving belt remains constant, the lengths of the first distance and the second distance change, and the lengths of the first distance and the second distance change in inverse proportion to change the transmission ratio between the first driving wheel and the second driving wheel.

12. The gearbox according to claim 10, characterized in that: The shift assembly comprises: Driving parts; A transmission shaft, a first transmission member, a second transmission member and a moving member, wherein the first transmission member and the second transmission member are spaced apart on the transmission shaft, the moving member is in transmission connection with the transmission shaft, and the moving member is located between the first transmission member and the second transmission member; wherein, The driving member is rotatably connected to the first transmission member and the second transmission member respectively, and the rotation directions of the first transmission member and the second transmission member are opposite; The first motion switching member is used to drive the moving member to move between the first transmission member and the second transmission member. Under the movement of the moving member, the shift assembly includes a first shift state, a second shift state and a third shift state; wherein, In the first shifting state, the moving member is combined with the first transmission member, and the first transmission member is synchronously transmitted with the transmission shaft; In the second shifting state, the moving member is combined with the second transmission member, and the second transmission member is synchronously transmitted with the transmission shaft; In the third shift state, the moving member is not coupled with the first transmission member and the second transmission member, and the first transmission member and the second transmission member rotate independently.

13. A lawn mower, characterized in that: A gearbox comprising any one of claims 10 to 12.

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