Novel transmission case structure of tractor
By setting a sealing ring and a dustproof gasket on the top of the transmission case and combining the design of a limit block and a limit shaft, multi-layer sealing of the transmission case is achieved, solving the problems of external dust and dirt intrusion and lubricating liquid leakage, improving the sealing and reliability of the transmission case, and facilitating later maintenance.
Patent Information
- Application Number
- CN202423199685.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-24
- Publication Date
- 2025-09-30
- Estimated Expiration
- 2034-12-24
AI Technical Summary
Existing tractor transmission cases are insufficient in preventing the intrusion of external dust and dirt and the leakage of internal lubricating fluid, and have poor sealing effects.
A sealing ring and a dustproof gasket are set on the top of the transmission box, and the transmission box top plate is connected by bolts. Combined with the design of the limit block and limit shaft and the power transmission rod, a sealing ring and a protective cover are used for multi-layer sealing to prevent dust and dirt from entering and prevent the leakage of lubricating liquid.
It effectively prevents the intrusion of external dust and dirt, prevents the leakage of internal lubricating liquid, improves the sealing and reliability of the transmission box, and facilitates later maintenance.
Smart Images
Figure CN223399192U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of tractors, in particular to a new transmission box structure for tractors. Background Art
[0002] The key to tractor transmission case design lies in improving transmission efficiency, reliability, and adaptability to different operating modes. Innovative technologies such as planetary gear mechanisms, dual clutches, synchronizers, and intelligent control systems ensure efficient power output while enhancing tractor operating comfort, ease of maintenance, and stability under prolonged, high-load operation.
[0003] Tractor transmissions require a good sealing mechanism to prevent the internal lubricating fluid from leaking out while also preventing external dust and dirt from invading the interior of the transmission. Utility Model Content
[0004] In order to solve the above technical problems, the utility model provides a new transmission box structure for a tractor.
[0005] The utility model adopts the following technical solutions: a new transmission box structure for a tractor, comprising a transmission box, a threaded hole is provided on the top of the transmission box, a dustproof gasket is provided in contact with the top of the transmission box, a placement groove is provided on the top of the transmission box, a sealing ring is provided in contact with the inner wall of the placement groove, a power transmission hole is provided on the front of the transmission box, a limiting groove is provided on the front of the transmission box, and a limiting block is provided in contact with the inner wall of the limiting groove.
[0006] As a further improvement of the above solution, a plurality of threaded holes are provided, and the plurality of threaded holes are evenly arranged at the center of the transmission case.
[0007] As a further improvement of the above solution, there are three limit grooves, which are evenly arranged at the center of the power transmission hole, and there are three limit blocks, which are evenly arranged at the center of the power transmission hole.
[0008] Through the above technical solution, a sealing ring is placed inside the placement groove on the top of the transmission box, and a dustproof gasket is placed on the top of the transmission box, and then bolts are screwed into the threaded holes to connect the transmission box top plate to the transmission box.
[0009] As a further improvement of the above solution, the outer wall of the limit block is fixedly connected to the limit shaft, the inner wall of the limit shaft is rotatably connected to the power transmission rod, and the outer wall of the power transmission rod is rotatably connected to the inner wall of the power transmission hole.
[0010] As a further improvement of the above solution, a second threaded hole is provided on the front of the transmission box, a protective cover is provided on the front of the transmission box, a second placement groove is provided on the front of the transmission box, and a second sealing ring is provided on the inner wall of the second placement groove.
[0011] As a further improvement of the above solution, the inner wall of the second threaded hole is threadedly connected with a bolt, and the outer wall of the bolt is threadedly connected to the inner wall of the protective cover.
[0012] As a further improvement of the above solution, the back of the protective cover is fixedly connected to the limiting block 2, the outer wall of the limiting block 2 is contacted with the outer wall of the limiting block, and the outer wall of the limiting block 2 is contacted with the inner wall of the limiting groove.
[0013] Through the above technical solution, the limit block is installed into the limit groove, and then the limit block drives the limit shaft, the limit shaft drives the power transmission rod, and at the same time, the sealing ring 2 is placed inside the placement groove 2, and then the bolt is screwed into the protective cover, and then the bolt passes through the protective cover and is screwed into the threaded hole 2, thereby connecting the protective cover and the transmission box, and at the same time the protective cover drives the limit block 2 to be clamped into the limit groove.
[0014] Compared with the prior art, the beneficial effects of the present invention are:
[0015] The utility model places a sealing ring inside a placement groove on the top of the transmission case, places a dustproof gasket on the top of the transmission case, and then screws the bolts into the threaded holes to connect the transmission case top plate to the transmission case. At the same time, when the transmission case top plate is connected to the transmission case, the transmission case top plate squeezes the dustproof gasket and the sealing ring downward. The dustproof gasket is limited by the bolts, which can effectively prevent external dust and dirt from invading the interior of the transmission case. At the same time, the compressed sealing ring can prevent the lubricating fluid inside the transmission case from leaking out, and can play a secondary sealing role.
[0016] The utility model installs the limit block into the limit groove, and then the limit block drives the limit shaft, the limit shaft drives the power transmission rod, and at the same time places the sealing ring 2 inside the placement groove 2, and then screws the bolt into the protective cover, and then penetrates the protective cover through the bolt and screws it into the second threaded hole, so as to connect the protective cover and the transmission box, and at the same time the protective cover drives the limit block 2 to be clamped into the limit groove to prevent the limit block from shaking and deflecting. At the same time, the protective cover compresses the sealing ring 2 through the bolt to prevent dust from entering the transmission box through the gap. The limit block 2 limits the limit block, which can prevent the power transmission rod from deflecting under long-term work. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is a schematic diagram of the overall structure of the utility model;
[0018] Figure 2 This is a schematic diagram of the placement slot structure of the utility model;
[0019] Figure 3 This is a schematic diagram of the cross-sectional structure of the transmission box of the utility model;
[0020] Figure 4 This is a schematic diagram of the structure of the limit block of the utility model;
[0021] Figure 5 This is a schematic diagram of the cross-sectional structure of the protective cover of the present utility model.
[0022] Description of main symbols:
[0023] 1. Transmission box; 2. Threaded hole; 3. Dustproof gasket; 4. Placement groove; 5. Sealing ring; 6. Power transmission hole; 7. Limiting groove; 8. Limiting block; 9. Limiting shaft; 10. Power transmission rod; 11. Second threaded hole; 12. Protective cover; 13. Placement groove second; 14. Second sealing ring; 15. Bolt; 16. Second limit block. DETAILED DESCRIPTION
[0024] Below, the present invention is further described in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments. Example
[0025] Please combine Figure 1-5 The present embodiment provides a new transmission box structure for a tractor, including a transmission box 1, a threaded hole 2 is provided on the top of the transmission box 1, a dustproof gasket 3 is provided on the top of the transmission box 1, a placement groove 4 is provided on the top of the transmission box 1, a sealing ring 5 is provided on the inner wall of the placement groove 4, a power transmission hole 6 is provided on the front of the transmission box 1, a limiting groove 7 is provided on the front of the transmission box 1, and a limiting block 8 is provided on the inner wall of the limiting groove 7.
[0026] There are a plurality of threaded holes 2 , which are evenly arranged at the center of the transmission case 1 .
[0027] There are three limiting grooves 7 , which are evenly arranged at the center of the power transmission hole 6 ; there are three limiting blocks 8 , which are evenly arranged at the center of the power transmission hole 6 .
[0028] The outer wall of the limit block 8 is fixedly connected to the limit shaft 9, the inner wall of the limit shaft 9 is rotatably connected to the power transmission rod 10, and the outer wall of the power transmission rod 10 is rotatably connected to the inner wall of the power transmission hole 6.
[0029] A threaded hole 11 is provided on the front of the transmission box 1 , a protective cover 12 is provided on the front of the transmission box 1 , a placement groove 13 is provided on the front of the transmission box 1 , and a sealing ring 14 is provided on the inner wall of the placement groove 13 .
[0030] The inner wall of the threaded hole 2 11 is threadedly connected with a bolt 15 , and the outer wall of the bolt 15 is threadedly connected to the inner wall of the protective cover 12 .
[0031] The back of the protective cover 12 is fixedly connected to the second limiting block 16 , the outer wall of the second limiting block 16 is arranged in contact with the outer wall of the limiting block 8 , and the outer wall of the second limiting block 16 is arranged in contact with the inner wall of the limiting groove 7 .
[0032] The implementation principle of a new transmission case structure of a tractor in the embodiment of the present application is as follows: by placing a sealing ring 5 inside the placement groove 4 on the top of the transmission case 1, and placing a dustproof gasket 3 on the top of the transmission case 1, and then screwing the bolts into the threaded holes 2, the transmission case top plate is connected to the transmission case 1. At the same time, when the transmission case top plate is connected to the transmission case 1, the transmission case top plate squeezes the dustproof gasket 3 and the sealing ring 5 downward. The dustproof gasket 3 is limited by the bolts, which can effectively prevent external dust and dirt from invading the interior of the transmission case 1. At the same time, the compressed sealing ring 5 can prevent the lubricating fluid inside the transmission case 1 from leaking out, and can play a secondary sealing role. By installing the limit block 8 into the limit groove 7, and then the limit block 8 drives the limit shaft 9, the limit shaft 9 drives the power transmission rod 10, and at the same time, a sealing ring 2 14 is placed inside the placement groove 2 13, and then the bolt 15 is screwed into the protective cover 12, and then The bolt 15 passes through the protective cover 12 and is screwed into the inside of the threaded hole 11, thereby connecting the protective cover 12 and the transmission box 1. At the same time, the protective cover 12 drives the limit block 2 16 to be stuck in the limit groove 7 to prevent the limit block 8 from shaking and deflecting. At the same time, the protective cover 12 compresses the sealing ring 2 14 through the bolt 15 to prevent dust from entering the transmission box 1 through the gap. The limit block 2 16 limits the limit block 8 to prevent the power transmission rod 10 from deflecting under long-term work and facilitates the later disassembly of the power transmission rod 10. When the power transmission rod 10 needs to be disassembled for inspection and maintenance of the transmission box 1 later, the bolt 15 is unscrewed outwards to separate the protective cover 12 from the front of the transmission box 1. At the same time, the protective cover 12 drives the limit block 2 16 to separate from the limit groove 7, and then rotates the limit block 8 along the limit groove 7 to take the limit block 8 outward. The limit block 8 drives the limit shaft 9, and the limit shaft 9 drives the power transmission rod 10.
[0033] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and replacements made by technicians in this field on the basis of the present invention fall within the scope of protection required by the present invention.
Claims
1. A new transmission box structure for a tractor, characterized in that: The invention comprises a transmission box (1), wherein a threaded hole (2) is provided on the top of the transmission box (1), a dustproof gasket (3) is provided on the top of the transmission box (1), a placement groove (4) is provided on the top of the transmission box (1), a sealing ring (5) is provided on the inner wall of the placement groove (4), a power transmission hole (6) is provided on the front of the transmission box (1), a limiting groove (7) is provided on the front of the transmission box (1), and a limiting block (8) is provided on the inner wall of the limiting groove (7).
2. A novel transmission case structure for a tractor according to claim 1, characterized in that: A plurality of threaded holes (2) are provided, and the plurality of threaded holes (2) are evenly arranged at the center of the transmission box (1).
3. The novel transmission case structure for a tractor according to claim 1, characterized in that: Three limiting grooves (7) are provided, and the three limiting grooves (7) are evenly arranged at the center of the power transmission hole (6); three limiting blocks (8) are provided, and the three limiting blocks (8) are evenly arranged at the center of the power transmission hole (6).
4. A new transmission box structure for a tractor according to claim 3, characterized in that: The outer wall of the limit block (8) is fixedly connected to the limit shaft (9), the inner wall of the limit shaft (9) is rotatably connected to the power transmission rod (10), and the outer wall of the power transmission rod (10) is rotatably connected to the inner wall of the power transmission hole (6).
5. The novel transmission case structure for a tractor according to claim 1, characterized in that: The transmission box (1) has a second threaded hole (11) on its front surface, a protective cover (12) is provided on its front surface, a placement groove (13) is provided on its front surface, and a sealing ring (14) is provided on the inner wall of the placement groove (13).
6. A new transmission case structure for a tractor according to claim 5, characterized in that: The inner wall of the second threaded hole (11) is threadedly connected to a bolt (15), and the outer wall of the bolt (15) is threadedly connected to the inner wall of the protective cover (12).
7. A new transmission case structure for a tractor according to claim 6, characterized in that: The back of the protective cover (12) is fixedly connected to the second limiting block (16), the outer wall of the second limiting block (16) is arranged in contact with the outer wall of the limiting block (8), and the outer wall of the second limiting block (16) is arranged in contact with the inner wall of the limiting groove (7).