Main gear and auxiliary gear same-side control device

Abstract

The utility model belongs to the technical field of tractor speed changing devices, and particularly relates to a main gear and auxiliary gear same-side control device which comprises a box body, a supporting block is fixedly connected to the upper portion of the box body, a first driving assembly and a second driving assembly are arranged between the supporting block and the box body, and a supporting cover is detachably and fixedly connected to the upper portion of the box body. A first shifting fork assembly and a second shifting fork assembly are arranged in the supporting cover, and a first control assembly and a second control assembly are arranged at the position, away from one end of the box body, of the upper portion of the supporting cover. The shifting fork assembly and the driving assembly are reasonable in structure and reliable in action, parts are easy to machine and install, production cost is reduced, and due to the fact that the main operating rod and the auxiliary operating rod are both located on one side of a driver, operation is more convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of tractor speed change devices, and particularly relates to a main and auxiliary gear same-side control device. Background Art

[0002] At present, various operating functions of tractors are generally achieved through speed transmission mechanisms in tractors, but the main and auxiliary joysticks of most existing tractor gearboxes are located on both sides of the driver's seat, which is very inconvenient to operate. It is a problem that needs to be solved to set the main and auxiliary joysticks on the same side of the driver's seat and to develop and change the structure of the corresponding transmission part accordingly. Utility Model Content

[0003] The main technical problem to be solved by the utility model is to provide a main and auxiliary gear same-side control device with reasonable structure, easy operation and reliable action.

[0004] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0005] A main and auxiliary gear same-side control device comprises a box body, a support block is fixedly connected to the upper part of the box body, a first drive assembly and a second drive assembly are arranged between the support block and the box body, a support cover is detachably fixedly connected to the upper part of the box body, a first fork assembly and a second fork assembly are arranged in the support cover, and a first control assembly and a second control assembly are arranged at a position above the support cover away from one end of the box body.

[0006] The following is a further optimization of the above technical solution by the utility model:

[0007] The first driving assembly includes a first supporting shaft, both ends of which are slidably connected to the supporting block and the box body respectively, the first supporting shaft is fixedly connected with a first connecting block, the first connecting block is integrally fixedly connected with a first shift fork block, and a first shift fork groove is provided on the top surface of the first shift fork block.

[0008] Further optimization: a second support shaft is arranged in parallel at a certain distance on one side of the first support shaft close to the second driving assembly, two ends of the second support shaft are respectively slidably connected to the support block and the box body, a second connecting block is fixedly connected to the second support shaft, a second fork block is integrally fixedly connected to the top of the second connecting block, and a second fork groove is provided on the top surface of the second fork block.

[0009] The second driving assembly includes a third supporting shaft, both ends of the third supporting shaft are slidably connected to the supporting block and the box body respectively, a third shift fork block is fixedly connected to the third supporting shaft, and a third shift fork groove is formed on the top surface of the third shift fork block.

[0010] A fourth supporting shaft is arranged in parallel at a certain distance on one side of the third supporting shaft, a fourth shift fork block is fixedly connected to the fourth supporting shaft, and a fourth shift fork groove is formed on the top surface of the fourth shift fork block.

[0011] The first fork assembly includes a first sliding shaft, which is slidably connected to the support cover, and the fifth fork block and the third connecting block are respectively fixedly connected at both ends of the first sliding shaft, and the first fork is integrally fixedly connected to the lower part of the fifth fork block, and the first fork is correspondingly arranged with the first fork groove and the second fork groove.

[0012] The second fork assembly includes a second sliding shaft, which is slidably connected to the support cover, and the sixth fork block and the fourth connecting block are respectively fixedly connected at both ends of the second sliding shaft, and the second fork is integrally fixedly connected to the lower part of the sixth fork block, and the second fork is correspondingly arranged with the third fork groove and the fourth fork groove.

[0013] The utility model discloses a simple structure, is easy to install, can realize the flexible conversion of seven gears of the tractor through simple operation of the driver, and the fork assembly and the driving assembly have reasonable structure, reliable action, and the parts are easy to process and install, thus reducing the production cost; because the main and auxiliary joysticks are both located on the driver's side, the operation is more convenient.

[0014] The utility model is further described below in conjunction with the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the embodiment of the utility model without the support cover;

[0017] Figure 3 It is a schematic diagram of the positions of the first driving assembly and the second driving assembly in the embodiment of the utility model;

[0018] Figure 4 It is a schematic diagram of the structure of the first drive assembly and the second drive assembly in an embodiment of the utility model;

[0019] Figure 5 It is a schematic structural diagram of the first fork assembly and the second fork assembly in an embodiment of the utility model.

[0020] In the figure: 1-box; 2-support block; 3-first drive assembly; 301-first support shaft; 302-first connecting block; 303-first fork block; 304-first fork slot; 305-second support shaft; 306-second connecting block; 307-second fork block; 308-second fork slot; 4-second drive assembly; 401-third support shaft; 402-third fork block; 403-third fork slot; 404-fourth support shaft; 405-fourth fork block; 406-fourth fork slot; 5-support cover; 6-first fork assembly; 601-first sliding shaft; 602-fifth fork block; 603-first fork; 604-third connecting block; 7-second fork assembly; 701-second sliding shaft; 702-sixth fork block; 703-second fork; 704-fourth connecting block; 8-first control assembly; 801-first support; 802-first control rod; 9-second control assembly; 901-second support; 902-second control rod; 10-support frame; 11-limiting frame. DETAILED DESCRIPTION

[0021] like Figure 1-5 As shown, a main and auxiliary gear same-side control device comprises a case 1, a support block 2 is fixedly connected to the upper part of the case 1, a first drive assembly 3 and a second drive assembly 4 are arranged between the support block 2 and the case 1, a support cover 5 is detachably fixedly connected to the upper part of the case 1, a first fork assembly 6 and a second fork assembly 7 are arranged in the support cover 5, and a first control assembly 8 and a second control assembly 9 are arranged at a position above the support cover 5 away from one end of the case 1.

[0022] The first driving assembly 3 includes a first supporting shaft 301, both ends of which are slidably connected to the supporting block 2 and the housing 1 respectively, a first connecting block 302 is fixedly connected to the first supporting shaft 301, a first shift fork block 303 is integrally fixedly connected to the first connecting block 302, and a first shift fork groove 304 is provided on the top surface of the first shift fork block 303.

[0023] A second support shaft 305 is arranged parallel to the first support shaft 301 at a certain distance on one side close to the second driving assembly 4. The two ends of the second support shaft 305 are slidingly connected to the support block 2 and the box body 1 respectively. A second connecting block 306 is fixedly connected to the second support shaft 305. A second fork block 307 is integrally fixedly connected to the upper part of the second connecting block 306. The top surface of the second fork block 307 is provided with a second fork groove 308.

[0024] The first shift fork block 303 is located on the upper side of the first connection block 302 close to the second connection block 306 , and the first shift fork groove 304 and the second shift fork groove 308 are correspondingly arranged.

[0025] The second driving assembly 4 includes a third supporting shaft 401 , both ends of which are slidably connected to the supporting block 2 and the housing 1 , respectively. A third fork block 402 is fixedly connected to the third supporting shaft 401 , and a third fork groove 403 is formed on the top surface of the third fork block 402 .

[0026] A fourth support shaft 404 is disposed in parallel at a certain distance on one side of the third support shaft 401 . A fourth shift fork block 405 is fixedly connected to the fourth support shaft 404 . A fourth shift fork groove 406 is formed on the top surface of the fourth shift fork block 405 .

[0027] The third fork groove 403 and the fourth fork groove 406 are arranged correspondingly.

[0028] The first fork assembly 6 includes a first sliding shaft 601, which is slidably connected to the support cover 5, and the fifth fork block 602 and the third connecting block 604 are fixedly connected at both ends of the first sliding shaft 601, and the first fork 603 is fixedly connected to the lower part of the fifth fork block 602, and the first fork 603 is arranged corresponding to the first fork groove 304 and the second fork groove 308.

[0029] The second fork assembly 7 includes a second sliding shaft 701, which is slidably connected to the support cover 5, and the sixth fork block 702 and the fourth connecting block 704 are fixedly connected at both ends of the second sliding shaft 701, and the second fork 703 is fixedly connected to the lower part of the sixth fork block 702, and the second fork 703 is arranged corresponding to the third fork groove 403 and the fourth fork groove 406.

[0030] The first control assembly 8 and the second control assembly 9 are both prior art.

[0031] The first operating assembly 8 includes a first support 801 fixedly connected to the support cover 5 , and a first operating rod 802 for controlling the action of the first fork assembly 6 is mounted on the first support 801 .

[0032] The second operating assembly 9 includes a second support 901 fixedly connected to the support cover 5 , and a second operating rod 902 for controlling the movement of the second fork assembly 7 is mounted on the second support 901 .

[0033] A support frame 10 is provided between the first driving assembly 3 and the second driving assembly 4 , and both ends of the support frame 10 are fixedly connected to the box body 1 and the support block 2 respectively. A side of the support frame 10 close to the second driving assembly 4 is fixedly connected to a limiting frame 11 .

[0034] When in use, the first operating lever 802 is pulled, and the first operating assembly 8 controls the axial movement of the first sliding shaft 601 to facilitate the conversion of the first fork 603 in the first fork groove 304 and the second fork groove 308. At this time, the first fork 603 is located in the first fork groove 304, and the first driving assembly 3 is in the neutral position.

[0035] Continue to pull the first operating lever 802, the first sliding shaft 601 reciprocates to drive the first shift fork 603 to swing back and forth, so as to facilitate the device to switch between the first gear and the second gear. After the action is completed, pull the first operating lever 802 back to the neutral position.

[0036] Continue to pull the first operating lever 802, the first sliding shaft 601 moves axially, and the first fork 603 moves into the second fork groove 308. Then, the first sliding shaft 601 reciprocates to drive the first fork 603 to swing back and forth, thereby facilitating the device to switch between the third gear and the fourth gear. After the action is completed, it returns to the neutral position.

[0037] By pulling the second operating lever 902, the second operating assembly 9 controls the axial movement of the second sliding shaft 701 to facilitate the conversion of the second fork 703 in the third fork groove 403 and the fourth fork groove 406. At this time, the second fork 703 is located in the third fork groove 403, and the second driving assembly 4 is in the neutral position.

[0038] Continue to pull the second operating lever 902, the second sliding shaft 701 reciprocates to drive the second shift fork 703 to swing back and forth, thereby facilitating the device to switch between the fifth gear and the sixth gear. After the action is completed, pull the second operating lever 902 back to the neutral position, and the limit frame 11 limits the fifth gear.

[0039] Continue to pull the second operating lever 902, the second sliding shaft 701 moves axially, and the second fork 703 moves into the fourth fork groove 406. Then, the second sliding shaft 701 rotates unidirectionally to drive the second fork 703 to swing, so that the device is located in the seventh gear position. After the action is completed, it returns to the neutral position.

[0040] For ordinary technicians in this field, according to the teachings of the present invention, without departing from the principles and spirit of the present invention, changes, modifications, substitutions and variations made to the implementation methods are still within the protection scope of the present invention.

Claims

1. A primary and secondary gear same-side control device, comprising a box (1), characterized in that: A support block (2) is fixedly connected to the upper part of the box body (1); a first drive assembly (3) and a second drive assembly (4) are arranged between the support block (2) and the box body (1); a support cover (5) is detachably fixedly connected to the upper part of the box body (1); a first shift fork assembly (6) and a second shift fork assembly (7) are arranged inside the support cover (5); and a first control assembly (8) and a second control assembly (9) are arranged above the support cover (5) at a position away from one end of the box body (1); The first driving assembly (3) comprises a first supporting shaft (301), two ends of the first supporting shaft (301) are slidably connected to the supporting block (2) and the box body (1) respectively, a first connecting block (302) is fixedly connected to the first supporting shaft (301), a first shift fork block (303) is integrally fixedly connected to the first connecting block (302), and a first shift fork groove (304) is provided on the top surface of the first shift fork block (303); A second support shaft (305) is arranged in parallel at a certain distance on one side of the first support shaft (301) close to the second drive assembly (4); two ends of the second support shaft (305) are respectively slidably connected to the support block (2) and the box body (1); a second connecting block (306) is fixedly connected to the second support shaft (305); a second shift fork block (307) is integrally fixedly connected to the upper side of the second connecting block (306); and a second shift fork groove (308) is provided on the top surface of the second shift fork block (307); The second driving assembly (4) comprises a third supporting shaft (401), the two ends of the third supporting shaft (401) are slidably connected to the supporting block (2) and the box body (1) respectively, the third supporting shaft (401) is fixedly connected to a third shift fork block (402), and the top surface of the third shift fork block (402) is provided with a third shift fork groove (403); A fourth support shaft (404) is arranged in parallel at a certain distance on one side of the third support shaft (401); a fourth shift fork block (405) is fixedly connected to the fourth support shaft (404); and a fourth shift fork groove (406) is provided on the top surface of the fourth shift fork block (405); The first shift fork assembly (6) comprises a first sliding shaft (601), the first sliding shaft (601) is slidably connected to the support cover (5), the two ends of the first sliding shaft (601) are respectively fixedly connected to a fifth shift fork block (602) and a third connection block (604), the lower part of the fifth shift fork block (602) is integrally fixedly connected to a first shift fork (603), and the first shift fork (603) is arranged correspondingly to the first shift fork groove (304) and the second shift fork groove (308); The second shift fork assembly (7) comprises a second sliding shaft (701), the second sliding shaft (701) is slidably connected to the support cover (5), the second sliding shaft (701) is respectively fixedly connected to a sixth shift fork block (702) and a fourth connection block (704) at both ends of the second sliding shaft (701), the second shift fork (703) is integrally fixedly connected to the lower portion of the sixth shift fork block (702), and the second shift fork (703) is arranged correspondingly to the third shift fork slot (403) and the fourth shift fork slot (406).

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