Clutch device and gear box

Abstract

The application provides a kind of clutch device and gear box, the drive panel assembly of driving assembly drive end is driven in the clutch device, and second gear connected with base slides along X direction, limit component is coupled with driving panel assembly and is linked in base, driving panel assembly drives limit component to separate from the first limit groove of abutment, second gear and base are no longer limited and move along X direction, until first gear and second gear completely separate, at this time, limit component reaches second limit groove and is in abutment with it, so that first gear and second gear keep separate contact state. Clutch stroke is accurately determined by limit groove on gear shaft, and clutch state can be limited by limit component, and clutch state is stable and reliable. At the same time, appropriate clutch stroke can be determined according to the specifications of gear and needs, and the adaptability is strong. The gear box provided with the above clutch device can flexibly set the clutch stroke, and the structure is simple and durable.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of clutch devices, and particularly relates to a clutch device and a gear box. BACKGROUND

[0002] A rail transit vehicle driven by a three-phase permanent magnet motor is generally connected with an input shaft of a gear box through a coupling, and wheels at both ends of an output shaft of the gear box are directly press-fitted, so as to drive the wheels to run on a track. The clutch of the power system of the rail transit vehicle is generally arranged at the following positions: between the three-phase permanent magnet motor and an elastic coupling, inside the elastic coupling, between the elastic coupling and the input shaft of the gear box, between internal gear transmissions of the gear box, between the output gear of the gear box and an axle, and between the wheels and the axle. The Chinese patent with the application number CN202411066326.4 “Gear Clutch Device for Axle of Rail Vehicle Driven by Permanent Magnet Motor” provides a clutch device arranged between the output gear of the gear box and the axle, which can effectively cut off the torque transmission between the three-phase permanent magnet motor and the wheel pair. However, the clutch device has the following disadvantages: it cannot be accurately and stably positioned in the engaged and separated states, and bearings exist between the components and the axle, which are prone to damage. SUMMARY

[0003] Therefore, the application aims to provide a clutch device and a gear box, which have the advantages of accurate positioning and flexible clutch stroke setting, and simple and durable structure.

[0004] The application discloses a clutch device, wherein a first gear and a second gear are correspondingly matched, the second gear is slidingly sleeved on a gear shaft and slides along an X direction to be in an engaged state or a separated state with the first gear, and the clutch device further comprises a base, a limiting unit, a driving baffle assembly and a plurality of driving assemblies uniformly arranged around the gear shaft.

[0005] The base is connected with a first end surface of the second gear.

[0006] The limiting unit comprises a first limiting groove, a second limiting groove and a plurality of limiting assemblies.

[0007] The limiting assemblies are arranged on the base, and the first limiting groove and the second limiting groove are arranged on the gear shaft along the X direction.

[0008] The driving baffle assembly is arranged at a driving end of the driving assembly and connected with the limiting assemblies.

[0009] The plurality of driving assemblies jointly drive the driving baffle assembly and the limiting unit to be coupled, so that the second gear and the first gear are switched between the engaged state and the separated state.

[0010] In the engaged state, the limiting assembly abuts against the first limiting groove;

[0011] In the separated state, the limiting assembly abuts against the second limiting groove.

[0012] In the above clutch device, the driving flashboard assembly provided at the driving end of the driving assembly drives the second gear connected with the base to slide along the X direction. The limiting assembly provided at the base is coupled with the driving flashboard assembly to link. The driving flashboard assembly drives the limiting assembly to disengage from the first limiting groove. The second gear and the base are no longer limited and move along the X direction until the first gear and the second gear are completely disengaged. At this time, the limiting assembly reaches the second limiting groove and abuts against it, so that the first gear and the second gear remain in the disengaged state.

[0013] Further, the limiting assembly includes a latch, an elastic member, and a cam rotating lever;

[0014] The latch is arranged in the hole of the base and slides along the Y direction between the first position and the second position;

[0015] The elastic member is connected with the base and the latch respectively. The elastic member is used to make the latch abut against the first limiting groove and the second limiting groove respectively.

[0016] The cam rotating lever is rotationally connected with the base. One end of the cam rotating lever is connected with the latch, and the other end of the cam rotating lever is connected with the driving flashboard assembly.

[0017] The second cam end includes a first protrusion, a first recess, and a second protrusion connected in sequence.

[0018] The driving flashboard assembly is provided with a first flashboard and a second flashboard.

[0019] In the process of switching from the engaged state to the separated state, the first flashboard abuts against the first protrusion to drive the latch to slide from the first position to the second position and remain stationary at the second position.

[0020] In the process of switching from the separated state to the engaged state, the second flashboard abuts against the second protrusion to drive the latch to slide from the first position to the second position. When the latch is at the second position, the second flashboard slides into the first recess along the second protrusion to abut and match, so that the latch remains stationary at the second position.

[0021] Further, the hole comprises a stepped platform, the elastic member comprises a compression spring, the compression spring is sleeved on the outer periphery of the plug, the lower part of the plug is provided with an annular platform, one end of the compression spring abuts against the stepped platform, and the other end of the compression spring abuts against the annular platform.

[0022] Further, the limiting unit further comprises a first limiting stopper, the first limiting stopper is arranged on the gear shaft, in the meshing state, the second end surface of the second gear abuts against the first limiting stopper, and / or the limiting unit further comprises a second limiting stopper, in the disengaging state, the second limiting stopper abuts against the first end surface of the driving plate assembly, so that the limiting assembly does not disengage from the second limiting groove.

[0023] Further, the base is sleeved on the gear shaft.

[0024] Further, the base and the gear shaft are connected through a spline connection.

[0025] Further, the second gear and the gear shaft are connected through a spline connection.

[0026] Further, the limiting assemblies are uniformly arranged around the gear shaft.

[0027] On the other hand, the application also provides a gear box, the gear box is provided with the above-mentioned clutching device, and the driving assembly is fixedly connected with the inner wall of the gear box.

[0028] The application has the following beneficial effects:

[0029] 1) The clutching stroke of the clutching device is accurately determined by the limiting assemblies on the base and the limiting grooves on the gear shaft, and the clutching state can be limited by the limiting assemblies, so that the clutching state is stable and reliable. Meanwhile, the position of the limiting groove on the gear shaft can be set according to the specifications of the gear and needs, so as to determine the appropriate clutching stroke, the clutching stroke is set flexibly, and the adaptability is strong; the uniformly arranged driving assemblies ensure that the driving force acting on the second gear during clutching is symmetrically distributed along the gear shaft, and the entire clutching process is stable and cannot deviate from the central shaft.

[0030] 2) The clutch device provided by the present application is characterized in that the plurality of driving assemblies are collectively used to drive the driving flashboard assembly to drive the second gear wheel connected to the base to slide along the X direction, so that the second gear wheel and the first gear wheel are switched from the meshing state to the disengaging state, and at the same time, the limiting assembly arranged in the base is also driven by the driving flashboard assembly to slide along the Y direction upward and then move along the X direction with the base to the second limiting groove and then slide along the Y direction downward to abut against the second limiting groove, so that the limiting assembly can position the second gear wheel in the meshing state and the disengaging state, and the whole device has a simple structure;

[0031] 3) The clutch device provided by the present application is characterized in that the first limiting stopper is arranged on the gear shaft and abuts against the second end surface of the second gear wheel in the meshing state to further limit the position of the second gear wheel, so that the second gear wheel and the first gear wheel are more stably kept in meshing; the second limiting stopper is arranged on the clutch device and abuts against the first end surface of the driving flashboard assembly in the disengaging state to prevent the limiting assembly from being separated from the second limiting groove, so that the sliding distance of the second gear wheel is within the clutch stroke;

[0032] 4) The clutch device provided by the present application is characterized in that the base and the first end surface of the second gear wheel are connected and sleeved on the gear shaft, and the contact area of the two is large, so that when the clutch device is driven by the plurality of driving assemblies arranged around the gear shaft to drive the second gear wheel connected to the base to clutch, the force applied to the second gear wheel is evenly distributed along the annular end portion of the second gear wheel, and the stability of the clutch device in operation is improved;

[0033] 5) The clutch device provided by the present application is characterized in that the second gear wheel and the gear shaft and the annular base and the gear shaft are connected through splines, which are not easy to be damaged and have a long service life;

[0034] 6) The clutch device provided by the present application is characterized in that the plurality of limiting assemblies and the plurality of driving assemblies are arranged around the gear shaft, and the arrangement ensures that the driving force applied to the second gear wheel is evenly distributed along the gear shaft when the second gear wheel is clutched, so that the whole clutching process is stable and the phenomenon of deviation from the central shaft does not occur;

[0035] 7) The gear box provided with the clutch device provided by the present application can flexibly set the clutch stroke and has a simple and durable structure. BRIEF DESCRIPTION OF DRAWINGS

[0036] Figure 1 is a whole schematic view of the clutch device provided by some embodiments of the present application,

[0037] Figure 2 is Figure 1 a sectional view along the A-A direction in figure,

[0038] Figure 3 is Figure 1 a sectional view along the B-B direction,

[0039] Figure 4 is a partial enlarged view of the clutch device provided by some embodiments of the present application,

[0040] Figure 5 is a front view of the cam rotating lever provided by an embodiment of the present application,

[0041] Figure 6 is a top view of the cam rotating lever provided by an embodiment of the present application,

[0042] Figure 7 is a schematic view of the working process of the clutch device provided by some embodiments of the present application.

[0043] Explanation of reference signs:

[0044] 010 gear box, 011 first gear, 012 second gear, 013 gear shaft

[0045] 100 base,

[0046] 110 hole,

[0047] 111 stepped platform,

[0048] 200 limiting unit,

[0049] 210 limiting assembly,

[0050] 211 latch,

[0051] 212 elastic member,

[0052] 213 cam rotating lever,

[0053] 213A first cam end,

[0054] 213B second cam end,

[0055] 213B-1 first protrusion,

[0056] 213B-2 first recess,

[0057] 213B-3 second protrusion,

[0058] 220 first limiting groove,

[0059] 230 second limiting groove,

[0060] 240 first limiting stop,

[0061] 250 second limiting stop,

[0062] 300 drive flap assembly,

[0063] 310 first flap,

[0064] 320 second baffle plate,

[0065] 400 driving assembly. DETAILED DESCRIPTION

[0066] For the purposes of promoting an understanding of the principles of the application, reference will now be made to the embodiments illustrated in the drawings. It is expressly understood that the drawings are for illustration only and that the application can be embodied in many different forms. In the drawings:

[0067] It is to be understood that where the terms "fixed" or "attached" are used herein, they are to be interpreted broadly to include direct attachment as well as attachment through intervening elements. In contrast, when the term "directly on" is used herein, it is to be interpreted to exclude the presence of intervening elements. The terms "vertical", "horizontal", "left", "right", and similar terms are used herein solely for the purpose of illustration and are not intended to be limiting.

[0068] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description herein is for describing particular embodiments only and is not intended to be limiting. As used in this description, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0069] As shown in Figure 1 The present application discloses a clutching device for clutching a first gear 011 and a second gear 012 in a gear box 010, wherein the first gear 011 and the second gear 012 correspondingly match, the second gear 012 is sleeved on a gear shaft 013 and slides along the X direction to be in meshing state or separation state with the first gear 011 respectively, the clutching device comprises a base 100, a limiting unit 200, a driving baffle plate assembly 300 and a plurality of driving assemblies 400 uniformly arranged around the gear shaft 013.

[0070] In the embodiments provided by the present application, the base 100 is connected with a first end surface of the second gear 012; the limiting unit 200 comprises a first limiting groove 220, a second limiting groove 230 and a plurality of limiting assemblies 210 uniformly arranged around the gear shaft 013; the limiting assemblies 210 are arranged on the base 100; the first limiting groove 220 and the second limiting groove 230 are arranged on the gear shaft 013 along the X direction; the driving baffle plate assembly 300 is arranged on a driving end of the driving assembly 400 and connected with the limiting assembly 210; optionally, as shown in Figure 1As shown, the driving assembly 400 can be arranged on the upper inner wall of the gear box 010; the driving assembly 400 can also be arranged on the right inner wall of the gear box 010.

[0071] The plurality of driving assemblies 400 jointly drive the driving plate assembly 300 and the limiting unit 200 to be coupled so that the second gear 012 slides on the gear shaft 013 to be in meshing state or separation state with the first gear 011 respectively:

[0072] In the meshing state, the limiting assembly 210 abuts against the first limiting groove 220;

[0073] In the separation state, the limiting assembly 210 abuts against the second limiting groove 230.

[0074] The specific working process is as follows: the driving plate assembly 300 arranged at the driving end of the plurality of driving assemblies 400 drives the second gear 012 connected with the base 100 to slide along the X direction, the limiting assembly 210 arranged on the base 100 is coupled with the driving plate assembly 300 to be linked, the driving plate assembly 300 drives the limiting assembly 210 to be separated from the first limiting groove 220, the second gear 012 and the base 100 are no longer limited and move along the X direction until the first gear 011 and the second gear 012 are completely separated, at this time, the limiting assembly 210 reaches the second limiting groove 230 and abuts against the same, so that the first gear 011 and the second gear 012 remain in the separated contact state. In the embodiment, corresponding to the meshing state of the first gear 011 and the second gear 012, the first limiting groove 220 is arranged on the gear shaft 013 of the second gear 012, corresponding to the separated contact state of the first gear 011 and the second gear 012, the second limiting groove 230 is arranged on the gear shaft 013, the limiting assembly 210 is arranged to abut against the first limiting groove 220 and the second limiting groove 230 respectively, the limiting groove can limit the meshing state or the separation state, and the stability and reliability of the clutching device in the meshing state or the separation state are ensured. At the same time, the distance between the first limiting groove 220 and the second limiting groove 230 precisely positions the clutching stroke of the clutching device, the suitable clutching stroke can be determined on the gear shaft 013 according to the specifications of the gear and needs, the clutching stroke is set flexibly, different specifications of gears can be matched, and the adaptability is strong.

[0075] Please refer to Figure 1 and Figure 4 In the embodiment provided by the application, the limiting assembly 210 includes a bolt 211, an elastic member 212 and a cam rotating lever 213.

[0076] The bolt 211 is arranged in the hole 110 of the base 100 and slides along the Y direction between the first position and the second position; as shown in Figure 1 、 Figure 7 d and Figure 7 e, the bolt 211 is in the first position; as shown in Figure 4、 Figure 7 a、 Figure 7 b、 Figure 7 c、 Figure 7 f、 Figure 7 g and Figure 7 h, the latch 211 is in the second position.

[0077] The elastic member 212 is connected with the latch 211, and the elastic member 212 is used to make the latch 211 abut against the first limiting groove 220 and the second limiting groove 230, respectively. In an embodiment, the hole 110 is a blind hole, and the elastic member 212 is a rubber spring, which can be arranged in the hole 110, one end of the rubber spring abutting against the bottom of the hole 110, and the other end abutting against the top end of the latch 211, and the rubber spring is compressed when the latch 211 is moved upward along the Y direction under the action of an external force. When the latch 211 is not acted by the external force, the latch 211 is moved downward along the Y direction under the action of the elastic force of the rubber spring to abut against the first limiting groove 220 and the second limiting groove 230, respectively. In another embodiment, as shown in Figure 4 , the elastic member 212 is a compression steel spring, and the hole 110 is a stepped through hole, the upper part of the hole 110 is provided with a stepped platform 111, and the end of the latch 211 away from the limiting groove is matched with the stepped platform 111 for limiting, such as a polygonal cylindrical end or a cylindrical end with a slightly larger diameter than that of the latch 211; the compression steel spring is sleeved on the outer periphery of the latch 211, and the lower part of the latch 211 is provided with an annular platform, one end of the compression steel spring abutting against the stepped platform 111, and the other end of the compression steel spring abutting against the annular platform. Under the action of the elastic force of the compression steel spring, the latch 211 is pressed downward to abut against the first limiting groove 220 and the second limiting groove 230, respectively.

[0078] The cam rotating lever 213 is rotationally connected with the base 100, one end of the cam rotating lever 213 is connected with one end of the latch 211, and the other end of the cam rotating lever 213 is connected with the driving baffle assembly 300; the other end of the cam rotating lever 213 includes a first convex portion 213B-1, a first concave portion 213B-2 and a second convex portion 213B-3 connected in sequence, and specifically, as shown in Figure 5 and Figure 6 , the cam rotating lever 213 is a V-shaped lever, the first cam end 213A of the left arm of the V-shaped lever is a cylindrical boss of the lever arm, and the cylindrical boss is connected with the latch 211; the second cam end 213B of the right arm of the V-shaped lever is a lever cam, the first convex portion 213B-1 in the lever cam is a small cylindrical boss with a slightly smaller shape, the second convex portion 213B-3 is a large cylindrical boss with a slightly larger shape, and there is a concave portion, i.e., the first concave portion 213B-2, between the small cylindrical boss and the large cylindrical boss. As shown in Figure 4As shown, the driving baffle assembly 300 is provided with a first baffle 310 and a second baffle 320, which cooperate with the cam rotating lever 213 in the clutching process, so that the driving baffle assembly 300 is coupled with the limiting assembly 210. In the embodiment, the coupling process of the driving baffle assembly 300 and the limiting assembly 210 is as follows:

[0079] In the process of switching from the engaged state to the disengaged state, the first baffle 310 abuts against the first protrusion 213B-1 to drive the latch 211 to slide from the first position to the second position and remain stationary in the second position;

[0080] In the process of switching from the disengaged state to the engaged state, the second baffle 320 slides along the second protrusion 213B-3 to drive the latch 211 to slide from the first position to the second position, and when the latch 211 is in the second position, the second baffle 320 slides along the second protrusion 213B-3 into the first recess 213B-2 to abut and match, so that the latch 211 remains stationary in the second position.

[0081] Taking the first gear 011 as the input gear, the second gear 012 as the output gear, and the gear shaft 013 as the output shaft connected with the wheel as an example, the following will be described with reference to Figure 7 The complete working process of the clutch will be introduced:

[0082] In the embodiment, as Figure 1 When the latch 211 abuts against the first limiting groove 220 downward, the output gear and the input gear are in meshing transmission, and the output shaft drives the wheel to rotate; when it is required to stop the output torque in the gear box, the output end of the driving assembly 400 moves rightward along the axial direction of the output shaft, the first baffle 310 abuts against the first protrusion 213B-1, the cam rotating lever 213 rotates around the rotating shaft on the base 100, the compression spring is compressed under stress, the latch 211 connected with the first cam end 213A moves upward from the first position to the second position, and the latch 211 is no longer limited, the clutch device enters the preparatory sliding state, as shown in Figure 7 a; as shown in Figure 7 b, the first baffle 310 abuts against the first protrusion 213B-1, and the latch 211 is completely lifted, the driving assembly 400 drives the output gear connected with the base 100 to slide rightward and gradually disengage from the input gear; as shown in Figure 7 c, the driving assembly 400 drives the output gear to completely disengage from the input gear until the latch 211 is aligned with the second limiting groove 230, and the first end surface of the driving baffle assembly 300 abuts against the second limiting stop 250; as shown in Figure 7As shown in d, the output end of the driving assembly 400 moves along the axial direction of the output shaft to the left, the first protrusion 213B-1 is disengaged from the first baffle 310, the compression spring rebounds, the latch 211 falls downward and abuts against the second limiting groove 230, at this time, the input gear and the output gear are disengaged, the output gear is limited in the disengaged state by the limiting assembly 210 abutting against the second limiting groove 230, the torque transmission of the gear box is interrupted, the wheels stop rotating, and the train stops.

[0083] When the output torque of the gear box is needed, as shown in Figure 7 e, the driving assembly 400 drives the driving baffle assembly 300 to move to the left and couple with the limiting assembly 210, the second baffle 320 abuts against the second protrusion 213B-3 and slides along the outer edge surface of the second protrusion 213B-3, driving the latch 211 to slide along the Y direction from the first position to the second position, and the latch 211 starts to disengage from the second limiting groove 230; as shown in Figure 7 f, the second baffle 320 leaves the second protrusion 213B-3 and enters the first recess 213B-2 and abuts against the first recess 213B-2, the latch 211 completely disengages from the second limiting groove 230 and no longer limits the output gear; as shown in Figure 7 g, the driving baffle assembly 300 is coupled with the limiting assembly 210, the second baffle 320 abuts against the first recess 213B-2, and the driving assembly 400 drives the base 100 and the output gear connected thereto to move to the left; as shown in Figure 7 h, until the latch 211 is aligned with the first limiting groove 220, and the second end surface of the output gear abuts against the first limiting stop 240; then, the driving assembly 400 moves to the right into Figure 1 the state, the latch 211 falls downward in the base 100 along the Y direction under the rebounding force of the compression spring, abuts against the first limiting groove 220, the output gear and the input gear are engaged and transmitted, and the output shaft drives the wheels to rotate.

[0084] In an optional embodiment provided by the present application, as shown in Figure 1 the limiting unit 200 further comprises a first limiting stop 240, which is arranged on the gear shaft 013 and abuts against the second end surface of the second gear 012 in the engaged state. In this embodiment, the first limiting stop 240 is arranged on the gear shaft 013 and abuts against the second end surface of the second gear 012 in the engaged state to further limit the position of the second gear 012, so that the second gear 012 and the first gear 011 are more stably kept in engagement.

[0085] In another optional embodiment provided by the present application, as shown in Figure 1As shown, the limiting unit 200 further comprises a second limiting stop 250, which, in the disengaged state, abuts against the first end surface of the driving flashboard assembly 300 to align the limiting assembly 210 with the second limiting groove 230. In this embodiment, the second limiting stop 250 is provided to abut against the first end surface of the driving flashboard assembly 300 in the disengaged state to align the limiting assembly 210 with the second limiting groove 230, thereby ensuring that the sliding distance of the second gear 012 is within the clutching stroke.

[0086] The two embodiments described above can be implemented separately or simultaneously, and the simultaneous implementation is better.

[0087] In the embodiments provided by the present application, the base 100 can be annular and connected to the first end surface of the second gear 012. The annular base 100 is slidably sleeved on the gear shaft 013. When the clutching device is used to drive the second gear 012 connected to the base 100 to clutch, the force is evenly distributed along the first end surface of the second gear 012 through the annular base 100, thereby improving the stability of the operation of the clutching device.

[0088] In the embodiments provided by the present application, the second gear 012 and the gear shaft 013 are connected by spline connection; preferably, the annular base 100 and the gear shaft 013 are connected by spline connection. The spline connection between the second gear 012 and the gear shaft 013 and the spline connection between the annular base 100 and the gear shaft 013 of the clutching device are not easy to damage and have a long service life.

[0089] In order to match a gear with a larger diameter, as a preferred embodiment of the present application, the clutching device can further comprise a plurality of limiting assemblies 210 and a plurality of driving assemblies 400, which are evenly arranged around the gear shaft 013. For example, as shown in Figure 2 and Figure 3 As shown, four limiting assemblies 210 and three driving assemblies 400 can be provided, and the limiting assemblies 210 and the driving assemblies 400 are evenly arranged around the gear shaft 013; three limiting assemblies 210 and two driving assemblies 400 can also be provided, which are also evenly arranged around the gear shaft 013; and more groups can be provided according to needs. The above arrangement ensures that the driving force on the second gear with a larger diameter is evenly distributed along the gear shaft during clutching, and the entire clutching process is stable and does not deviate from the central shaft.

[0090] The driving assembly 400 can be a hydraulic cylinder or an air cylinder.

[0091] On the other hand, the present application further provides a gear box 010, which is provided with the above-mentioned clutching device. The gear box 010 can flexibly set the clutching stroke and has a simple and durable structure.

[0092] The clutch device and the gear box provided by the application are described in detail above. The principles and implementation manners of the application are described by using specific examples in this paper, and the above description of the examples is only used to help understand the core idea of the application. It should be pointed out that, for ordinary skilled persons in the technical field, some improvements and modifications can be made to the application without departing from the principles of the application, and these improvements and modifications also fall within the protection scope of the claims of the application.

Claims

1. A clutch device, wherein a first gear (011) and a second gear (012) are matched with each other, and the second gear (012) is sleeved on a gear shaft (013) and slides along the X direction to be in a meshing state or a disengagement state with the first gear (011), characterized in that: It also includes a base (100), a limiting unit (200), a driving baffle assembly (300), and a plurality of driving assemblies (400) evenly arranged around the gear shaft (013); The base (100) is connected to the first end surface of the second gear (012); The limiting unit (200) comprises a first limiting groove (220), a second limiting groove (230) and a plurality of limiting components (210); The limiting assembly (210) is provided on the base (100); the first limiting groove (220) and the second limiting groove (230) are provided on the gear shaft (013) along the X direction; The driving baffle assembly (300) is provided at the driving end of the driving assembly (400) and is connected to the limiting assembly (210); The multiple drive assemblies (400) jointly drive the drive baffle assembly (300) to couple with the limiting unit (200) so that the second gear (012) and the first gear (011) switch between the meshing state and the separation state: In the engaged state, the limiting assembly (210) abuts against the first limiting groove (220); In the separated state, the limiting assembly (210) abuts against the second limiting groove (230).

2. The clutch device according to claim 1, wherein: The limiting assembly (210) includes a latch (211), an elastic member (212) and a cam rotating lever (213); The latch (211) is disposed in the hole (110) of the base (100) and slides along the Y direction between a first position and a second position; The elastic member (212) is connected to the base (100) and the latch (211) respectively, and the elastic member (212) is used to make the latch (211) abut against the first limiting groove (220) and the second limiting groove (230) respectively; The cam rotating lever (213) is rotatably connected to the base (100), a first cam end (213A) of the cam rotating lever (213) is connected to one end of the latch (211), and a second cam end (213B) of the cam rotating lever (213) is connected to the driving baffle assembly (300); The second cam end (213B) includes a first convex portion (213B-1), a first concave portion (213B-2) and a second convex portion (213B-3) connected in sequence; The driving baffle assembly (300) is provided with a first baffle (310) and a second baffle (320); During the process of switching from the engaged state to the disengaged state, the first baffle (310) abuts against the first protrusion (213B-1) to drive the latch (211) to slide from the first position to the second position and remain stationary at the second position; During the process of switching from the disengaged state to the engaged state, the second baffle (320) slides along the second convex portion (213B-3) to drive the latch (211) to slide from the first position to the second position, and when the latch (211) is in the second position, the second baffle (320) slides along the second convex portion (213B-3) into the first concave portion (213B-2) to abut and match, so that the latch (211) remains stationary in the second position.

3. The clutch device according to claim 2, characterized in that: The hole (110) includes a stepped platform (111), the elastic member (212) includes a compression spring, the compression spring is sleeved on the outer periphery of the latch (211), an annular platform is provided at the lower portion of the latch (211), one end of the compression spring abuts against the stepped platform (111), and the other end of the compression spring abuts against the annular platform.

4. The clutch device according to claim 1, wherein: The limiting unit (200) further comprises a first limiting stop (240), the first limiting stop (240) being arranged on the gear shaft (013), and in the engaged state, the second end face of the second gear (012) abuts against the first limiting stop (240); and / or the limiting unit (200) further comprises a second limiting stop (250), and in the disengaged state, the second limiting stop (250) abuts against the first end face of the driving baffle assembly (300) so that the limiting assembly (210) does not disengage from the second limiting slot (230).

5. The clutch device according to claim 1, wherein: The base (100) is slidably sleeved on the gear shaft (013).

6. The clutch device according to claim 5, characterized in that: The base (100) and the gear shaft (013) are connected via a spline.

7. The clutch device according to claim 1, wherein: The second gear (012) and the gear shaft (013) are connected via a spline.

8. The clutch device according to any one of claims 1 to 7, characterized in that: A plurality of the limiting components (210) are evenly arranged around the gear shaft (013).

9. Gear box (010), characterized in that, The gearbox (010) is provided with the clutch device according to any one of claims 1 to 8, and the drive assembly (400) is fixedly connected to the inner wall of the gearbox (010).

Images