Variable-speed control lever mechanism and tractor

Abstract

The utility model relates to a variable speed control lever mechanism and a tractor, the variable speed control lever mechanism comprises a control lever, a mounting seat and a buffer assembly, the interior of the mounting seat is hollow, and the upper end of the mounting seat is provided with a mounting hole; the operating rod is mounted in the mounting seat, and the upper end of the operating rod penetrates through the mounting hole and extends out of the mounting seat; the buffer assembly is installed in one end of the installation base and wraps the control rod. The utility model has the benefits that the structure is simple, the design is reasonable, the buffering function is realized, and the collision between metals can be effectively reduced, so that the vibration and noise are reduced, and the driving comfort of the tractor is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of speed change operating levers, in particular to a speed change operating lever mechanism and a tractor. Background Art

[0002] The speed lever is an essential control device on the tractor. It will vibrate during the operation of the tractor. When the engine speed increases or the road conditions are bumpy, it will make noise or even shift out of gear, which brings a bad experience to users. With the continuous development of the tractor market, users' requirements for the reliability and comfort of tractors are increasing day by day. Utility Model Content

[0003] The utility model provides a speed change operating lever mechanism and a tractor, aiming to solve the problems in the prior art.

[0004] The technical solution of the utility model to solve the above technical problems is as follows:

[0005] A speed change lever mechanism comprises a lever, a mounting seat and a buffer assembly, wherein the mounting seat is hollow inside and a mounting hole is provided at the upper end of the mounting seat; the lever is mounted inside the mounting seat, and the upper end thereof extends outside the mounting seat through the mounting hole; the buffer assembly is mounted inside one end of the mounting seat and wrapped around the lever.

[0006] The beneficial effects of the utility model are as follows: when shifting gears, the driver manually operates the joystick to shift gears; during this process, the buffer component is used to buffer the operation of the joystick, thereby reducing vibration and noise, and improving the driving comfort of the tractor.

[0007] The utility model has the advantages of simple structure, reasonable design and buffering function, and can effectively reduce the collision between metals, thereby reducing vibration and noise and improving the driving comfort of the tractor.

[0008] On the basis of the above technical solution, the present invention can also be improved as follows.

[0009] Furthermore, the buffer assembly includes two limit blocks, which are relatively installed in the mounting seat and are connected to the mounting seat through elastic members respectively; the two limit blocks respectively hold the ball on the joystick.

[0010] The beneficial effects of adopting the above further scheme are simple structure, reasonable design, using two limit blocks to limit the joystick, and using elastic parts to avoid rigid contact between the limit blocks and the mounting seat, thereby reducing vibration and noise and improving the driving comfort of the tractor.

[0011] Furthermore, the two sides of the two limit blocks that are close to each other are respectively in an arc-shaped structure.

[0012] The beneficial effect of adopting the above further solution is that the shape of the limit block is reasonably designed and can better cooperate with the ball on the joystick, so as to better limit the joystick.

[0013] Furthermore, the two elastic members respectively include at least one spring, one end of each of the springs is fixedly connected to the corresponding limit block, and the other end is abutted against the mounting seat.

[0014] The beneficial effects of adopting the above further solution are simple structure, reasonable design, and utilizing elastic members to avoid rigid contact between the limit block and the mounting seat, thereby reducing vibration and noise and improving the driving comfort of the tractor.

[0015] Furthermore, each of the elastic members includes two springs, and the two springs are distributed side by side.

[0016] The beneficial effect of adopting the above further solution is that the number of springs is reasonably designed, which can ensure both the buffering effect and the assembly between the limit block and the mounting seat.

[0017] Furthermore, at least one pair of mounting tubes are relatively fixedly mounted on the sides of the two limit blocks that are away from each other, and the springs are respectively mounted in each pair of the mounting tubes.

[0018] The beneficial effects of adopting the above further solution are simple structure, reasonable design, stable installation of the spring is achieved by utilizing the installation tube connected to the limit block, and the buffering effect is better.

[0019] Furthermore, at least one pair of mounting grooves whose number is the same as the number of the mounting tubes are arranged on the side walls of the mounting seat, and each pair of the mounting tubes is respectively distributed in a corresponding pair of the mounting grooves.

[0020] The beneficial effects of adopting the above further solution are simple structure, reasonable design, and utilizing the mounting groove to assemble the mounting tube, which further ensures the stability of the spring installation.

[0021] Furthermore, an anti-rotation component is included, and the anti-rotation component includes two limiting bolts. The two limiting bolts are relatively installed on the mounting seat, and the opposite ends of the two limiting bolts extend into relatively distributed limiting holes on the operating rod respectively.

[0022] The beneficial effects of adopting the above further solution are simple structure, reasonable design, using two limit bolts to limit the rotation of the joystick around the longitudinal axis, and convenient gear shifting.

[0023] Furthermore, the mounting seat includes an end cover and a joystick support, the joystick support is hollow inside and open at the upper end; the joystick and the buffer assembly are respectively installed in the joystick support, the end cover is fixedly installed at the open upper end of the joystick support, and the mounting holes are distributed on the end cover.

[0024] The beneficial effect of adopting the above further solution is that the mounting seat adopts a split design, which makes assembly more convenient and saves time and effort.

[0025] The utility model also relates to a tractor, comprising the speed change operating lever mechanism as described above.

[0026] The beneficial effect of adopting the above further solution is that the utility model also provides a tractor with a simple structure, reasonable design, and a buffer function, which can effectively reduce the collision between metals, thereby reducing vibration and noise, and improving the driving comfort of the tractor. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is the overall assembly diagram of the utility model;

[0028] Figure 2 It is an internal cross-sectional view of the utility model;

[0029] Figure 3 It is a partial assembly diagram of the utility model;

[0030] Figure 4 It is a top view of the utility model when it is partially assembled;

[0031] Figure 5 It is an exploded view of the utility model.

[0032] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0033] 1. Joystick; 2. Limit block; 3. Mounting tube; 4. Spring; 5. Limit bolt; 6. Mounting slot; 7. Limit hole; 8. End cover; 9. Joystick support. DETAILED DESCRIPTION

[0034] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0035] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0036] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0037] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0038] Example 1

[0039] like Figures 1 to 5 As shown, this embodiment provides a speed change lever mechanism, including a lever 1, a mounting seat and a buffer assembly, wherein the mounting seat is hollow inside and a mounting hole is provided at the upper end of the mounting seat; the lever 1 is installed in the mounting seat, and its upper end extends to the outside of the mounting seat through the mounting hole; the buffer assembly is installed in one end of the mounting seat, and is wrapped around the lever 1.

[0040] When shifting gears, the driver manually operates the joystick 1 to shift gears; during this process, the buffer component is used to buffer the operation of the joystick 1, thereby reducing vibration and noise, and improving the driving comfort of the tractor.

[0041] Preferably, in this embodiment, the joystick 1 adopts the prior art, and its specific structure and how it cooperates with the shift fork belong to the prior art, which will not be described in detail here.

[0042] This embodiment has a simple structure, a reasonable design, and a buffering function, and can effectively reduce collisions between metals, thereby reducing vibration and noise, and improving the driving comfort of the tractor.

[0043] Example 2

[0044] On the basis of Example 1, in this embodiment, the buffer assembly includes two limit blocks 2, and the two limit blocks 2 are relatively installed in the mounting seat, and are respectively connected to the mounting seat through elastic members; the two limit blocks 2 respectively hold the ball on the joystick 1.

[0045] The solution has a simple structure and a reasonable design. Two limit blocks 2 are used to limit the joystick 1, and elastic members are used to avoid rigid contact between the limit blocks 2 and the mounting seat, thereby reducing vibration and noise and improving the driving comfort of the tractor.

[0046] Example 3

[0047] On the basis of Example 2, in this embodiment, the two sides of the two limit blocks 2 that are close to each other are respectively in an arc-shaped structure.

[0048] The shape of the limiting block 2 is reasonably designed and can better cooperate with the ball on the joystick 1 so as to better limit the joystick 1 .

[0049] Preferably, in this embodiment, the two limit blocks 2 are overall in an arc-shaped block structure.

[0050] Example 4

[0051] On the basis of any one of Examples 2 to 3, in this embodiment, the two elastic members respectively include at least one spring 4, one end of each of the springs 4 is fixedly connected to the corresponding limit block 2, and the other end abuts against the mounting seat.

[0052] This solution has a simple structure and a reasonable design, and utilizes elastic members to avoid rigid contact between the limit block 2 and the mounting seat, thereby reducing vibration and noise and improving the driving comfort of the tractor.

[0053] Preferably, in this embodiment, each spring 4 extends along the radial direction of the operating rod 1 .

[0054] Example 5

[0055] On the basis of Embodiment 4, in this embodiment, each of the elastic members includes two springs 4, and the two springs 4 are distributed side by side.

[0056] The number of springs 4 is reasonably designed, which can ensure the buffering effect and the assembly between the limit block 2 and the mounting seat.

[0057] Based on the above solution, the two springs 4 on each limit block 2 are respectively distributed at two ends of the limit block 2 .

[0058] Example 6

[0059] On the basis of any one of Examples 4 to 5, in this embodiment, at least one pair of mounting tubes 3 are relatively fixedly mounted on the side of the two limit blocks 2 away from each other, and the spring 4 is respectively mounted in each pair of the mounting tubes 3 .

[0060] This solution has a simple structure and a reasonable design. The mounting tube 3 connected to the limit block 2 is used to achieve stable mounting of the spring 4, and the buffering effect is better.

[0061] Preferably, in this embodiment, each of the above-mentioned installation tubes 3 is preferably a cylindrical structure with both ends open.

[0062] Example 7

[0063] On the basis of Example 6, in this embodiment, at least one pair of mounting grooves 6 whose number is the same as the number of the mounting tubes 3 is relatively provided on the side walls of the mounting seat, and each pair of the mounting tubes 3 is respectively distributed in a corresponding pair of the mounting grooves 6.

[0064] This solution has a simple structure and a reasonable design. The mounting tube 3 is assembled by using the mounting groove 6 to further ensure the stability of the installation of the spring 4.

[0065] Example 8

[0066] Based on the above embodiments, this embodiment also includes an anti-rotation component, which includes two limit bolts 5. The two limit bolts 5 are relatively installed on the mounting seat, and their opposite ends extend into relatively distributed limit holes 7 on the joystick 1.

[0067] The solution has a simple structure and a reasonable design. The two limit bolts 5 can be used to limit the rotation of the joystick 1 around the longitudinal axis, making gear shifting convenient.

[0068] Alternatively, the anti-rotation member may also be a limiting bolt 5 .

[0069] Example 9

[0070] On the basis of the above embodiments, in this embodiment, the mounting base includes an end cover 8 and a joystick support 9, the joystick support 9 is hollow inside and open at the upper end; the joystick 1 and the buffer assembly are respectively installed in the joystick support 9, the end cover 8 is fixedly installed at the open upper end of the joystick support 9, and the mounting holes are distributed on the end cover 8.

[0071] The mounting base adopts a split design, which makes assembly more convenient, saving time and effort.

[0072] Based on the above solution, a plurality of mounting grooves 6 are distributed on the upper end surface of the joystick support 9 .

[0073] Example 10

[0074] On the basis of the above embodiments, this embodiment further provides a tractor, comprising the above-mentioned speed change lever mechanism.

[0075] This embodiment also provides a tractor with a simple structure, reasonable design, and a buffering function, which can effectively reduce collisions between metals, thereby reducing vibration and noise and improving the driving comfort of the tractor.

[0076] The working principle of the utility model is as follows:

[0077] The ball head of the joystick 1 is clamped in the middle by two limit blocks 2 to limit the horizontal and vertical movement, while the limit bolt 5 limits the rotation of the joystick 1 around the longitudinal axis;

[0078] When shifting, the limit block 2 and the limit bolt 5 work together to ensure that the joystick 1 can only rotate in the horizontal direction without falling out;

[0079] The limit block 2 is pressed on the joystick support 9 by the end cover 8 and can slide along the groove between the joystick support 9 and the end cover 8.

[0080] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0081] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

[0082] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A speed change lever mechanism, characterized in that: The invention comprises a joystick (1), a mounting seat and a buffer assembly, wherein the mounting seat is hollow inside and a mounting hole is provided at the upper end of the mounting seat; the joystick (1) is mounted inside the mounting seat, and the upper end thereof passes through the mounting hole and extends outside the mounting seat; the buffer assembly is mounted inside one end of the mounting seat and is wrapped around the joystick (1).

2. The speed change lever mechanism according to claim 1, characterized in that: The buffer assembly comprises two limit blocks (2), the two limit blocks (2) are relatively mounted in the mounting seat and are respectively connected to the mounting seat via elastic members; the two limit blocks (2) respectively hold the ball on the joystick (1).

3. The speed change lever mechanism according to claim 2, characterized in that: The sides of the two limit blocks (2) that are close to each other are respectively in an arc-shaped structure.

4. The speed change lever mechanism according to claim 2, characterized in that: The two elastic members respectively comprise at least one spring (4); one end of each spring (4) is fixedly connected to the corresponding limit block (2), and the other end abuts against the mounting seat.

5. The speed change lever mechanism according to claim 4, characterized in that: Each of the elastic members comprises two springs (4), and the two springs (4) are arranged side by side.

6. The speed change lever mechanism according to claim 4, characterized in that: At least one pair of mounting tubes (3) are relatively fixedly mounted on the sides of the two limit blocks (2) that are away from each other, and the spring (4) is respectively mounted in each pair of the mounting tubes (3).

7. The speed change lever mechanism according to claim 6, characterized in that: At least one pair of mounting grooves (6) whose number is the same as the number of the mounting tubes (3) is arranged on the side walls of the mounting seat, and each pair of the mounting tubes (3) is respectively distributed in a corresponding pair of the mounting grooves (6).

8. The speed change lever mechanism according to any one of claims 1 to 7, characterized in that: It also includes an anti-rotation component, which includes two limiting bolts (5). The two limiting bolts (5) are relatively mounted on the mounting seat, and their opposite ends respectively extend into relatively distributed limiting holes (7) on the operating rod (1).

9. The speed change lever mechanism according to any one of claims 1 to 7, characterized in that: The mounting seat comprises an end cover (8) and an operating rod support (9); the operating rod support (9) is hollow inside and open at the upper end; the operating rod (1) and the buffer assembly are respectively mounted in the operating rod support (9); the end cover (8) is fixedly mounted at the open upper end of the operating rod support (9), and the mounting holes are distributed on the end cover (8).

10. A tractor, characterized in that: It comprises a speed change lever mechanism as claimed in any one of claims 1 to 9.

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