Driving box cover of agricultural harvester

Abstract

The utility model provides an agricultural harvester driving box cover which comprises a box body and a box cover, and the box cover is located at the top of the box body. The utility model relates to the technical field of harvesters. According to the driving box cover of the agricultural harvester, the positioning mechanism is arranged, a traction rod can be pulled downwards, the traction rod drives a linkage block and a transmission rod to move downwards, and the surface of the transmission rod can extrude the bevel edge part of the inner wall of a transmission groove; the two movable blocks are driven to move towards the side close to the spring along the tracks of the sliding blocks and the sliding grooves, the movable blocks can drive the positioning rods to leave the interiors of the positioning holes, then the box cover can be disassembled by pushing the box cover upwards, after overhauling is completed, the positions of the shell and the embedded grooves are aligned, the box cover is clamped on the box body, then the traction rod is loosened, and the box cover is disassembled. And elastic force generated by a spring can push a moving block and a positioning rod to move, so that the positioning rod enters a positioning hole, connection between the box cover and the box body is completed, and the effect of conveniently disassembling and overhauling the box cover is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of harvesters, in particular to a driving box cover of an agricultural harvester. Background Art

[0002] Harvester is a machine that harvests crops in one go. It completes harvesting and threshing at one time, and collects the grains into storage bins, and then transports the grains to transport vehicles via conveyor belts. It can also be harvested manually, with rice, wheat and other crops’ straw spread out in the field, and then picked up and threshed with grain harvesters. It is a crop harvester that harvests grains and straws of cereal crops such as rice and wheat. Harvester drive box refers to the component used to provide power to the harvester.

[0003] Publication No. "CN219734182U" provides a wheel-side reduction box for a harvester driving axle, including a reduction box body, a driving shaft is arranged on the inner wall of one side of the reduction box body, a driving wheel is arranged on the outer wall of the driving shaft, a rotating shaft is arranged on the inner wall of the reduction box body, a driven wheel and a first driving wheel are arranged on the outer wall of the rotating shaft, the driven wheel is meshed with the driving wheel, a driven shaft is arranged on the inner wall of the other side of the reduction box body, a first driven wheel is arranged on the outer wall of the driven shaft, the first driven wheel is meshed with the driven wheel, a filtering structure is arranged on the inner wall of the reduction box body, the filtering structure includes a fixing seat, and a card slot is opened on the top of the fixing seat. The device can filter the lubricating oil poured into the reduction box by using a filter net through a filtering mechanism arranged in the reduction box, so as to prevent the lubricating oil from being mixed with impurities and entering the reduction box during the pouring process, which may easily cause damage to the gears in the reduction box and affect the normal operation of the reduction box.

[0004] However, the above device still has the following problems during implementation:

[0005] A box cover is generally installed on the harvester drive box. When the drive box is damaged, the box cover can be removed to inspect the inside of the drive box. However, the existing way of connecting the drive box and the box cover is very cumbersome. Users need to use a large number of tools to remove the bolts before repairing. During the removal process, the thread on the bolt surface may be worn, making it difficult to remove the box cover. Utility Model Content

[0006] The utility model aims to provide a driving box cover for an agricultural harvester to solve the problems raised in the above-mentioned background technology.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A driving box cover for an agricultural harvester comprises a box body and a box cover, wherein the box cover is located on the top of the box body, and the surfaces of the box cover and the box body are respectively fixedly connected with a first limiting ring and a second limiting ring, the bottom of the first limiting ring is fixedly connected with two shells, a positioning mechanism is arranged inside the shell, and the top of the second limiting ring is provided with an embedding groove used in conjunction with the shell;

[0009] The positioning mechanism includes a linkage block arranged inside a shell, one side of the linkage block is fixedly connected to two transmission rods, a transmission block is sleeved on the surface of the transmission rod, one side of the transmission block is provided with a transmission groove used in conjunction with the transmission rod, a moving block is fixedly connected to the top of the transmission block, one side of the moving block is fixedly connected to a positioning rod, one end of the positioning rod passes through the outside of the shell, a positioning hole used in conjunction with the positioning rod is provided on the inner wall of the embedding groove, a traction rod is provided at the bottom of the shell, the top of the traction rod passes through the inside of the shell and is fixedly connected to the bottom of the linkage block, and a sealing mechanism is provided inside the box cover.

[0010] Preferably, the sealing mechanism comprises a sealing ring fixedly connected to the inner wall of the box body, the inner wall of the sealing ring is fixedly connected to a sealing strip, the bottom of the box cover is fixedly connected to a sealing ring, and the surface of the sealing ring is provided with a sealing groove used in conjunction with the sealing strip.

[0011] Preferably, the number of the sealing strips is three and they are evenly distributed on the inner wall of the sealing ring.

[0012] Preferably, the sealing ring is made of rubber, and the sealing strip is made of silicone.

[0013] Preferably, a spring is arranged inside the shell, and the sides of the two moving blocks close to each other are fixedly connected to one end of the spring respectively.

[0014] Preferably, a sliding block is fixedly connected to the top of the moving block, and a sliding groove for use with the sliding block is provided on the inner wall of the shell.

[0015] Preferably, a plurality of clamping posts are fixedly connected to the top of the second limiting ring, and a clamping hole for use with the clamping posts is provided on the top of the first limiting ring.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. The utility model is provided with a positioning mechanism, and the traction rod can be pulled downward to drive the linkage block and the transmission rod to move downward. The surface of the transmission rod will squeeze the beveled edge of the inner wall of the transmission groove, and drive the two moving blocks to move along the trajectory of the sliding block and the sliding groove to the side close to the spring. The moving block will drive the positioning rod to leave the inside of the positioning hole, and then the box cover can be removed by pushing it upward. After the inspection is completed, the position of the shell and the embedded groove is aligned, and the box cover is clamped on the box body. Then the traction rod is released, and the elastic force generated by the spring will push the moving block and the positioning rod to move, so that the positioning rod enters the inside of the positioning hole, completing the connection between the box cover and the box body, which plays a role in facilitating the disassembly and inspection of the box cover.

[0018] 2. The utility model is provided with a sealing mechanism, when the box cover moves downward and is stuck on the box body, the sealing ring will squeeze the sealing ring and the sealing strip to make them rebound. Then, when the sealing ring moves to an appropriate position, the sealing strip will be stuck in the sealing groove. The sealing of the connection between the box cover and the box body is effectively improved through the multi-layer sealing of the sealing ring and the sealing strip, thereby preventing oil leakage. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0020] Figure 2 It is a schematic diagram of the decomposition of the main structure of the utility model;

[0021] Figure 3 For this utility model Figure 2 A partial enlarged view of the middle A;

[0022] Figure 4 It is a three-dimensional diagram of the exploded sealing mechanism of the utility model;

[0023] Figure 5 It is a three-dimensional diagram of a cutaway view of the housing of the utility model;

[0024] Figure 6 It is a three-dimensional diagram of the local structure of the positioning mechanism of the utility model.

[0025] In the figure: 1. box body; 2. box cover; 3. first limiting ring; 4. second limiting ring; 5. shell; 6. embedded groove; 7. linkage block; 8. transmission rod; 9. transmission block; 10. transmission groove; 11. moving block; 12. positioning rod; 13. positioning hole; 14. traction rod; 15. sealing ring; 16. sealing strip; 17. sealing ring; 18. sealing groove; 19. spring; 20. sliding block; 21. sliding groove; 22. clamping column; 23. clamping hole. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1 - Figure 6 , the utility model provides a technical solution:

[0028] Embodiment 1:

[0029] A driving box cover for an agricultural harvester comprises a box body 1 and a box cover 2, wherein the box cover 2 is located at the top of the box body 1, and the surfaces of the box cover 2 and the box body 1 are respectively fixedly connected with a first limiting ring 3 and a second limiting ring 4, the bottom of the first limiting ring 3 is fixedly connected with two shells 5, a positioning mechanism is arranged inside the shell 5, and an embedding groove 6 used in conjunction with the shell 5 is arranged on the top of the second limiting ring 4;

[0030] The positioning mechanism includes a linkage block 7 arranged inside the shell 5, one side of the linkage block 7 is fixedly connected to two transmission rods 8, the surface of the transmission rod 8 is sleeved with a transmission block 9, one side of the transmission block 9 is provided with a transmission groove 10 used in conjunction with the transmission rod 8, the top of the transmission block 9 is fixedly connected to a moving block 11, one side of the moving block 11 is fixedly connected to a positioning rod 12, one end of the positioning rod 12 passes through the outside of the shell 5, the inner wall of the embedded groove 6 is provided with a positioning hole 13 used in conjunction with the positioning rod 12, a traction rod 14 is arranged at the bottom of the shell 5, the top of the traction rod 14 passes through the inside of the shell 5 and is fixedly connected to the bottom of the linkage block 7, and a sealing mechanism is arranged inside the box cover 2.

[0031] In this embodiment, it is considered that the existing connection method between the drive box and the box cover 2 is very complicated, and the user needs to use a large number of tools to remove the bolts before maintenance. During the removal process, the thread wear of the bolt surface may also be encountered, which makes the box cover 2 difficult to remove. Therefore, by setting a positioning mechanism, the traction rod 14 can be pulled downward, and the traction rod 14 drives the linkage block 7 and the transmission rod 8 to move downward. The surface of the transmission rod 8 will squeeze the beveled portion of the inner wall of the transmission groove 10, and drive the two moving blocks 11 to move along the trajectory of the sliding block 20 and the sliding groove 21 to the side close to the spring 19. The moving block 11 will drive the positioning rod 12 to leave the inside of the positioning hole 13, and then push the box cover 2 upward to remove the box cover 2. After the maintenance is completed, align the position of the shell 5 with the embedded groove 6, and clamp the box cover 2 on the box body 1. Then release the traction rod 14, and the elastic force generated by the spring 19 will push the moving block 11 and the positioning rod 12 to move, so that the positioning rod 12 enters the inside of the positioning hole 13, completing the connection between the box cover 2 and the box body 1, which plays a role in facilitating the disassembly and maintenance of the box cover 2.

[0032] The problem that the existing connection method between the drive box and the box cover 2 is very complicated and the user needs to use a large number of tools to remove the bolts for maintenance and the thread wear on the surface of the bolts may occur during the removal process, making the box cover 2 difficult to remove is solved.

[0033] A spring 19 is disposed inside the housing 5 , and the sides of the two moving blocks 11 that are close to each other are fixedly connected to one end of the spring 19 .

[0034] In this embodiment, by providing the spring 19, when the traction rod 14 is released, the elastic force generated by the spring 19 can push the moving block 11 and the positioning rod 12 to move, thereby resetting the positioning rod 12 and other structures.

[0035] A sliding block 20 is fixedly connected to the top of the moving block 11 , and a sliding groove 21 for use with the sliding block 20 is formed on the inner wall of the housing 5 .

[0036] In this embodiment, by setting the sliding block 20 and the sliding groove 21, when the transmission rod 8 squeezes the beveled portion of the inner wall of the transmission groove 10, the transmission block 9, the moving block 11, the positioning rod 12 and other structures are restricted to move only along the trajectory of the sliding block 20 and the sliding groove 21.

[0037] A plurality of clamping posts 22 are fixedly connected to the top of the second limiting ring 4 , and a clamping hole 23 for use with the clamping posts 22 is formed on the top of the first limiting ring 3 .

[0038] In this embodiment, by providing the clamping column 22 and the clamping hole 23 , when the box cover 2 and the box body 1 are installed, the clamping column 22 can enter the inside of the clamping hole 23 , thereby improving the stability of the connection.

[0039] Embodiment 2:

[0040] On the basis of Example 1, the positioning mechanism is taken into consideration in this embodiment, which can facilitate the disassembly and installation of the box cover 2, but the sealing of the connection between the box cover 2 and the box body 1 is ignored. The oil used for lubrication in the box body 1 will leak from the connection between the box body 1 and the box cover 2, thereby reducing the practicality of the box cover 2. The sealing mechanism in this application includes a sealing ring 15 fixedly connected to the inner wall of the box body 1, and a sealing strip 16 is fixedly connected to the inner wall of the sealing ring 15. A sealing ring 17 is fixedly connected to the bottom of the box cover 2, and a sealing groove 18 used in conjunction with the sealing strip 16 is provided on the surface of the sealing ring 17.

[0041] In this embodiment, by providing a sealing mechanism, when the box cover 2 moves downward and is stuck on the box body 1, the sealing ring 17 will squeeze the sealing ring 15 and the sealing strip 16 to make them rebound. Then, when the sealing ring 17 moves to an appropriate position, the sealing strip 16 will be stuck inside the sealing groove 18. The sealing ring 15 and the sealing strip 16 are sealed in multiple layers, which can effectively improve the sealing performance of the connection between the box cover 2 and the box body 1, thereby preventing the oil from leaking.

[0042] The problem that the positioning mechanism is taken into consideration and the box cover 2 can be easily disassembled and installed is solved, but the sealing of the connection between the box cover 2 and the box body 1 is ignored, and the oil used for lubrication in the box body 1 will leak from the connection between the box body 1 and the box cover 2, thereby reducing the practicality of the box cover 2.

[0043] There are three sealing strips 16 , which are evenly distributed on the inner wall of the sealing ring 15 .

[0044] In this embodiment, three sealing strips 16 are provided, and the three sealing strips 16 cooperate with the sealing grooves 18 to further improve the sealing performance between the box cover 2 and the box body 1. Even if one of the sealing strips 16 is worn, it will not affect the sealing effect.

[0045] The material of the sealing ring 15 is rubber, and the material of the sealing strip 16 is silicone.

[0046] In this embodiment, by setting the material of the sealing ring 15 to rubber and the material of the sealing strip 16 to silicone, when the sealing ring 17 contacts the sealing ring 15 and the sealing strip 16, the sealing ring 15 and the sealing strip 16 will rebound under the influence of pressure, thereby facilitating the sealing ring 17 to enter the inner wall of the box body 1 by being squeezed.

[0047] Working principle: the user pulls the traction rod 14 downward, and the traction rod 14 drives the linkage block 7 and the transmission rod 8 to move downward. The surface of the transmission rod 8 squeezes the beveled edge of the inner wall of the transmission groove 10, and drives the two moving blocks 11 to move along the trajectory of the sliding block 20 and the sliding groove 21 to the side close to the spring 19. The moving block 11 drives the positioning rod 12 to leave the inside of the positioning hole 13, and then pushes the box cover 2 upward to remove the box cover 2. After the inspection is completed, align the position of the shell 5 and the embedded groove 6, and clamp the box cover 2 on the box body 1. Then release the traction rod 14, and the elastic force generated by the spring 19 will push the moving block 11 and the positioning rod 12 to move, so that the positioning rod 12 enters the inside of the positioning hole 13, completing the connection between the box cover 2 and the box body 1, which makes it easy to disassemble and inspect the box cover 2.

[0048] When the box cover 2 moves downward and is stuck on the box body 1, the sealing ring 17 will squeeze the sealing ring 15 and the sealing strip 16 to make them rebound. Then, when the sealing ring 17 moves to the appropriate position, the sealing strip 16 will be stuck in the sealing groove 18. The multi-layer sealing of the sealing ring 15 and the sealing strip 16 can effectively improve the sealing performance of the connection between the box cover 2 and the box body 1, thereby preventing oil leakage.

[0049] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A driving box cover for an agricultural harvester, comprising a box body (1) and a box cover (2), wherein the box cover (2) is located on the top of the box body (1), and is characterized in that: The surfaces of the box cover (2) and the box body (1) are respectively fixedly connected with a first limiting ring (3) and a second limiting ring (4); the bottom of the first limiting ring (3) is fixedly connected with two shells (5); a positioning mechanism is provided inside the shell (5); and the top of the second limiting ring (4) is provided with an embedding groove (6) for use with the shell (5); The positioning mechanism comprises a linkage block (7) arranged inside a housing (5), one side of the linkage block (7) is fixedly connected to two transmission rods (8), a transmission block (9) is sleeved on the surface of the transmission rod (8), one side of the transmission block (9) is provided with a transmission groove (10) used in conjunction with the transmission rod (8), the top of the transmission block (9) is fixedly connected to a moving block (11), one side of the moving block (11) is fixedly connected to a positioning rod (12), one end of the positioning rod (12) passes through the outside of the housing (5), the inner wall of the embedding groove (6) is provided with a positioning hole (13) used in conjunction with the positioning rod (12), the bottom of the housing (5) is provided with a traction rod (14), the top of the traction rod (14) passes through the inside of the housing (5) and is fixedly connected to the bottom of the linkage block (7), and a sealing mechanism is provided inside the box cover (2).

2. The driving box cover of an agricultural harvester according to claim 1, characterized in that: The sealing mechanism comprises a sealing ring (15) fixedly connected to the inner wall of the box body (1), a sealing strip (16) fixedly connected to the inner wall of the sealing ring (15), a sealing ring (17) fixedly connected to the bottom of the box cover (2), and a sealing groove (18) for use with the sealing strip (16) is provided on the surface of the sealing ring (17).

3. The driving box cover of an agricultural harvester according to claim 2, characterized in that: The number of the sealing strips (16) is three and they are evenly distributed on the inner wall of the sealing ring (15).

4. The driving box cover of an agricultural harvester according to claim 2, characterized in that: The material of the sealing ring (15) is rubber, and the material of the sealing strip (16) is silica gel.

5. The driving box cover of an agricultural harvester according to claim 1, characterized in that: A spring (19) is arranged inside the housing (5), and the sides of the two moving blocks (11) close to each other are fixedly connected to one end of the spring (19) respectively.

6. The driving box cover of an agricultural harvester according to claim 1, characterized in that: A sliding block (20) is fixedly connected to the top of the moving block (11), and a sliding groove (21) for use with the sliding block (20) is provided on the inner wall of the housing (5).

7. The driving box cover of an agricultural harvester according to claim 1, characterized in that: A plurality of clamping posts (22) are fixedly connected to the top of the second limiting ring (4), and a clamping hole (23) for use with the clamping post (22) is provided on the top of the first limiting ring (3).

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