Tractor gearbox power reversing mechanism

Abstract

The utility model discloses a tractor gearbox power reversing mechanism, which relates to the field of gearbox power reversing mechanisms and comprises a gearbox body, a first driven rod, a transmission unit and an adjusting unit. The tractor gearbox power reversing mechanism is provided. According to the tractor gearbox power reversing mechanism, a driving air cylinder is started to drive a connecting frame to move, at the moment, a first driving gear moves along with the connecting frame, the first driving gear and a second driven gear are gradually separated, and at the moment, a second driving gear and a second transmission gear relatively move and are meshed; the butt joint of the second main gear and the second transmission gear is facilitated, serious abrasion is avoided, meanwhile, the second transmission gear and the second main gear are located outside, and the second transmission gear and the second main gear are convenient to replace.

Description

Technical Field

[0001] The utility model relates to the technical field of gearbox power reversing mechanisms, in particular to a tractor gearbox power reversing mechanism. Background Art

[0002] The power reversing mechanism of a gearbox is a mechanism that uses different control methods to change the direction of motion of the driven member. It is usually used in conjunction with other mechanisms to achieve power reversal and transmission.

[0003] In the prior art, when performing power reversing of a tractor transmission, different gears are quickly moved and engaged with each other to achieve rapid gear switching. In the prior art, when the gears are engaged, collision and wear occur between the gears, resulting in severe collision and wear when the gears are switched, which shortens the service life of the tractor transmission. In addition, most gears are engaged in the transmission, making it inconvenient to replace them. Therefore, a power reversing mechanism for a tractor transmission is proposed. Utility Model Content

[0004] In response to the deficiencies of the prior art, the utility model provides a power reversing mechanism for a tractor gearbox, which solves the problems of collision and wear between gears during gear meshing, resulting in severe collision and wear when gears are switched, shortening the service life of the tractor gearbox, and inconvenience in replacing most gears due to the meshing arrangement in the gearbox.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: A tractor gearbox power reversing mechanism includes a gearbox body, in which the following components are provided:

[0006] a first driven rod, the first driven rod passing through the gearbox body and connected to the driving mechanism;

[0007] The transmission unit includes a second driven rod, wherein one end of the second driven rod outside the transmission case is sleeved with a second transmission gear;

[0008] The adjusting unit includes an active rod, wherein one end of the active rod located outside is sleeved with a second main gear;

[0009] The active rod moves to drive the second main gear to engage with the second transmission gear, and the second transmission gear and the second main gear rotate to drive the first driven rod to reverse.

[0010] Preferably, a mounting cover is installed on the inner wall of the gearbox body, the first driven rod is rotatably connected to the mounting cover, a rotating seat is rotatably connected in the gearbox body, and the active rod is slidably connected to the rotating seat.

[0011] Preferably, a limiting wheel is sleeved on the outer peripheral wall of the first driven rod, and the limiting wheel is rotatably connected to the inner wall of the gearbox body.

[0012] Preferably, a first follower gear is sleeved on the outer peripheral wall of the first driven rod, a first transmission gear is meshed on the outer peripheral wall of the first follower gear, the first transmission gear is sleeved on the inner wall of the second driven rod, and the second driven rod is rotatably connected to the inner wall of the gearbox body.

[0013] Preferably, the outer peripheral wall of the first driven rod is sleeved with a second slave gear, the outer peripheral wall of the second slave gear is meshed with a first master gear, and the first master gear is sleeved on the outer peripheral wall of the active rod.

[0014] Preferably, the outer peripheral wall of the first main gear is rotatably connected to a connecting frame, the connecting frame is slidably connected to the inner wall of the gearbox body, the outer peripheral wall of the active rod is rotatably connected to a connecting seat, and the connecting seat is fixedly connected to the inner wall of the gearbox body.

[0015] Preferably, a driving cylinder is fixedly connected to the outer wall of the connecting frame, and the driving cylinder is installed in the gearbox body.

[0016] The utility model discloses a tractor gearbox power reversing mechanism, which has the following beneficial effects:

[0017] The tractor gearbox power reversing mechanism drives the connecting frame to move by starting the driving cylinder, and the first main gear moves accordingly. At this time, the first main gear and the second slave gear are gradually separated. At this time, the second main gear and the second transmission gear move relatively and engage with each other. Under the limitation of the first main gear and the second slave gear, the second main gear and the second transmission gear are conveniently connected to each other to avoid serious wear. At the same time, the second transmission gear and the second main gear are outside, which makes it convenient to replace the second transmission gear and the second main gear. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 This is a schematic diagram of the structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of the gearbox body of the utility model;

[0021] Figure 3This is a schematic diagram of the connection between the transmission unit and the adjustment unit of the utility model.

[0022] In the figure: 1. gearbox body; 101. mounting cover; 102. rotating seat; 2. first driven rod; 201. limiting wheel; 202. first slave gear; 203. second slave gear; 3. transmission unit; 301. second driven rod; 302. first transmission gear; 303. second transmission gear; 4. adjusting unit; 401. active rod; 402. first main gear; 403. second main gear; 404. connecting frame; 405. driving cylinder; 406. connecting seat. DETAILED DESCRIPTION

[0023] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0024] The embodiment of the present application provides a tractor transmission power reversing mechanism, which solves the problems of collision and wear between gears during gear meshing, resulting in serious collision and wear during gear switching, shortening the service life of the tractor transmission, and inconvenience in replacing most gears arranged in the transmission. The embodiment of the present application provides a tractor transmission power reversing mechanism, which solves the problems of collision and wear between gears during gear meshing, resulting in serious collision and wear during gear switching, shortening the service life of the tractor transmission, and inconvenience in replacing most gears arranged in the transmission. The embodiment of the present application realizes that by starting the driving cylinder 405 to drive the connecting frame 404 to move, the first main gear 402 moves accordingly, and the first main gear 402 and the second slave gear 203 are gradually separated. The second main gear 403 and the second transmission gear 303 move relative to each other and mesh. Under the restriction of the first main gear 402 and the second slave gear 203, the second main gear 403 and the second transmission gear 303 are conveniently connected to each other, avoiding serious wear. At the same time, the second transmission gear 303 and the second main gear 403 are outside, making it convenient to replace the second transmission gear 303 and the second main gear 403.

[0025] In order to better understand the above technical solution, the above technical solution will be described in detail below with reference to the accompanying drawings and specific implementation methods.

[0026] The embodiment of the utility model discloses a power reversing mechanism of a tractor gearbox.

[0027] According to the attached Figure 1-3 As shown, it includes a gearbox body 1, a first driven rod 2, a transmission unit 3 and an adjustment unit 4. The first driven rod 2 is rotatably connected to the gearbox body 1, and the first driven rod 2 passes through the gearbox body 1 and is connected to the drive mechanism. The transmission unit 3 and the adjustment unit 4 are arranged in the gearbox body 1.

[0028] The transmission unit 3 includes a second driven rod 301, which is rotatably connected to the inner wall of the transmission case 1. The end of the second driven rod 301 outside the transmission case 1 is sleeved with a second transmission gear 303.

[0029] The adjustment unit 4 includes an active rod 401, which is slidably connected to the rotating base 102. The rotating base 102 is rotatably connected to the inner wall of the gearbox body 1. The end of the active rod 401 that is exposed to the outside is sleeved with a second main gear 403.

[0030] The second driven rod 301 and the active rod 401 are transmission-connected with the first driven rod 2, and the active rod 401 moves to drive the second main gear 403 to mesh with the second transmission gear 303. The second transmission gear 303 and the second main gear 403 rotate to drive the first driven rod 2 to reverse direction, and the connecting frame 404 is driven to move by starting the driving cylinder 405. At this time, the first main gear 402 moves accordingly. At this time, the first main gear 402 and the second slave gear 203 are gradually separated. At this time, the second main gear 403 and the second transmission gear 303 move relative to each other and mesh. Under the limitation of the first main gear 402 and the second slave gear 203, it is convenient to dock the second main gear 403 with the second transmission gear 303 to avoid serious wear. At the same time, the second transmission gear 303 and the second main gear 403 are outside, which is convenient for replacing the second transmission gear 303 and the second main gear 403.

[0031] A mounting cover 101 is mounted on the inner wall of the gearbox body 1 , and the first driven rod 2 is rotatably connected to the mounting cover 101 . The mounting cover 101 ensures that the first driven rod 2 is rotatably connected to the gearbox body 1 .

[0032] The outer wall of the first driven rod 2 is sleeved with a limiting wheel 201, which is rotatably connected to the inner wall of the gearbox body 1. The limiting wheel 201 makes the rotation of the first driven rod 2 on the gearbox body 1 and the mounting cover 101 more stable.

[0033] The first driven rod 2 is sleeved with a first driven gear 202 on its outer peripheral wall, the first driven gear 202 is meshed with a first transmission gear 302 on its outer peripheral wall, the first transmission gear 302 is sleeved on the inner wall of the second driven rod 301, and the first driven rod 2 is connected to the second driven rod 301 through the first driven gear 202 and the first transmission gear 302.

[0034] The outer peripheral wall of the first driven rod 2 is sleeved with the second slave gear 203, the outer peripheral wall of the second slave gear 203 is meshed with the first master gear 402, the first master gear 402 is sleeved on the outer peripheral wall of the active rod 401, and the first driven rod 2 is connected to the active rod 401 through the second slave gear 203 and the first master gear 402.

[0035] The outer peripheral wall of the first main gear 402 is rotatably connected to a connecting frame 404, and the connecting frame 404 is slidably connected to the inner wall of the transmission case 1. The outer peripheral wall of the active rod 401 is rotatably connected to a connecting seat 406, and the connecting seat 406 is fixedly connected to the inner wall of the transmission case 1. Under the action of the connecting seat 406, the rotation of the active rod 401 in the transmission case 1 is relatively stable. Under the action of the connecting frame 404, the transmission of the first main gear 402 in the transmission case 1 is relatively stable.

[0036] The outer wall of the connecting frame 404 is fixedly connected to a driving cylinder 405, which is installed in the gearbox body 1. By starting the driving cylinder 405, the connecting frame 404 is driven to move. At this time, the first main gear 402 moves accordingly, driving the active rod 401 to slide in the rotating seat 102, driving the second main gear 403 to move accordingly. At this time, the first main gear 402 and the second slave gear 203 are gradually separated. At this time, the second main gear 403 and the second transmission gear 303 move relative to each other and engage. Under the limitation of the first main gear 402 and the second slave gear 203, it is convenient to dock the second main gear 403 with the second transmission gear 303 to avoid serious wear. At the same time, the second transmission gear 303 and the second main gear 403 are outside, which is convenient for replacing the second transmission gear 303 and the second main gear 403.

[0037] By rotating the active rod 401, the second transmission gear 303 is driven to rotate. At this time, the second driven rod 301 drives the first transmission gear 302 to rotate, so that the first driven gear 202 engaged with the first transmission gear 302 rotates accordingly, and the first driven gear 202 drives the first driven rod 2 to rotate in the opposite direction, thereby reversing.

[0038] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A tractor gearbox power reversing mechanism, comprising a gearbox body (1), characterized in that: The gearbox body (1) is provided with: A first driven rod (2), the first driven rod (2) passes through the gearbox body (1) and is connected to the driving mechanism; The transmission unit (3) comprises a second driven rod (301), wherein one end of the second driven rod (301) located outside the transmission case (1) is sleeved with a second transmission gear (303); The adjustment unit (4) comprises an active rod (401), wherein one end of the active rod (401) located outside is sleeved with a second main gear (403); The active rod (401) moves to drive the second main gear (403) to engage with the second transmission gear (303), and the second transmission gear (303) and the second main gear (403) rotate to drive the first driven rod (2) to reverse direction.

2. A tractor gearbox power reversing mechanism according to claim 1, characterized in that: A mounting cover plate (101) is mounted on the inner wall of the gearbox body (1); the first driven rod (2) is rotatably connected to the mounting cover plate (101); a rotating seat (102) is rotatably connected to the gearbox body (1); and the active rod (401) is slidably connected to the rotating seat (102).

3. A tractor gearbox power reversing mechanism according to claim 2, characterized in that: A limiting wheel (201) is sleeved on the outer peripheral wall of the first driven rod (2), and the limiting wheel (201) is rotatably connected to the inner wall of the gearbox body (1).

4. A tractor gearbox power reversing mechanism according to claim 3, characterized in that: A first follower gear (202) is sleeved on the outer peripheral wall of the first follower rod (2), a first transmission gear (302) is meshed with the outer peripheral wall of the first follower gear (202), the first transmission gear (302) is sleeved on the inner wall of the second follower rod (301), and the second follower rod (301) is rotatably connected to the inner wall of the gearbox body (1).

5. A tractor transmission power reversing mechanism according to claim 4, characterized in that: The outer peripheral wall of the first driven rod (2) is sleeved with a second slave gear (203), the outer peripheral wall of the second slave gear (203) is meshed with a first master gear (402), and the first master gear (402) is sleeved on the outer peripheral wall of the active rod (401).

6. A tractor transmission power reversing mechanism according to claim 5, characterized in that: The outer peripheral wall of the first main gear (402) is rotatably connected to a connecting frame (404), and the connecting frame (404) is slidably connected to the inner wall of the gearbox body (1). The outer peripheral wall of the active rod (401) is rotatably connected to a connecting seat (406), and the connecting seat (406) is fixedly connected to the inner wall of the gearbox body (1).

7. A tractor transmission power reversing mechanism according to claim 6, characterized in that: A driving cylinder (405) is fixedly connected to the outer wall of the connecting frame (404), and the driving cylinder (405) is installed in the gearbox body (1).

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