CN220600302U - Wet-type braking mechanism of tractor - Google Patents
Wet-type braking mechanism of tractor Download PDFInfo
- Publication number
- CN220600302U CN220600302U CN202322314811.6U CN202322314811U CN220600302U CN 220600302 U CN220600302 U CN 220600302U CN 202322314811 U CN202322314811 U CN 202322314811U CN 220600302 U CN220600302 U CN 220600302U
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- brake
- pushing shaft
- end cover
- braking
- screw rod
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- 230000007246 mechanism Effects 0.000 title claims abstract description 30
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 230000009467 reduction Effects 0.000 description 4
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
The utility model discloses a wet-type braking mechanism of a tractor, which comprises a braking seat, wherein the braking seat is fixedly connected with the outer wall of a bottom axle housing, a friction plate group and a braking piston are arranged in the braking seat, and an end cover is arranged at one end, far away from the bottom axle housing, of the braking seat; a pushing shaft capable of moving up and down is arranged in the end cover in a penetrating way, an oil seal is arranged between the pushing shaft and the end cover, the outer end of the pushing shaft is connected with a brake handle, and a return spring is arranged between the brake handle and the outer end of the end cover; the brake handle comprises a multi-head screw rod and an operating rod which are fixedly connected, the inner surface of the multi-head screw rod is provided with a thread, the inner surface of the multi-head screw rod is in threaded connection with the pushing shaft, the outer surface of the multi-head screw rod is provided with a multi-head thread, and the outer surface of the multi-head screw rod is connected with the end cover in a matched mode. The wet braking mechanism of the tractor can ensure the stability of a braking mode, better reduce the risk of oil leakage of wet braking, has simple manufacture of parts and greatly reduces the manufacturing cost.
Description
Technical Field
The utility model relates to a braking mechanism, in particular to a wet type braking mechanism of a tractor, and belongs to the technical field of braking.
Background
The braking mechanism is a device having a function of decelerating, stopping or maintaining a stopped state of a moving member, and the braking mechanism has a wet type braking mechanism and a dry type braking mechanism, and both the dry type braking mechanism and the wet type braking mechanism are braked by utilizing a friction principle, so that mechanical kinetic energy is converted into heat energy to be dissipated. The wet brake car mechanism is a brake mechanism for sealing the friction element in the brake shell, and has the advantages of larger brake torque, smaller wear resistance and long service life due to complete tightness, so that the wet brake car mechanism is more and more widely used by engineering vehicles.
However, the existing wet braking mechanism is relatively complex in structure and relatively high in manufacturing cost, and the problem of insufficient braking force can occur in the process of repeated use, so that the braking mode is unstable, and meanwhile, the risk of oil leakage of wet braking exists.
In summary, it is clear that the prior art has inconvenience and defects in practical use, so that improvement is needed.
Disclosure of Invention
Aiming at the defects in the background technology, the utility model provides the wet braking mechanism of the tractor, which can ensure the stability of a braking mode, better reduce the risk of oil leakage of wet braking, and has the advantages of simple manufacture of parts and greatly reduced manufacturing cost.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the wet type braking mechanism of the tractor comprises a braking seat, wherein the braking seat is fixedly connected with the outer wall of a bottom axle housing, a friction plate group and a braking piston are arranged in the braking seat, and an end cover is arranged at one end, far away from the bottom axle housing, of the braking seat; a pushing shaft capable of moving up and down is arranged in the end cover in a penetrating way, an oil seal is arranged between the pushing shaft and the end cover, the outer end of the pushing shaft is connected with a brake handle, and a return spring is arranged between the brake handle and the outer end of the end cover;
the brake handle comprises a multi-head screw rod and an operating rod which are fixedly connected, the inner surface of the multi-head screw rod is provided with a thread, the inner surface of the multi-head screw rod is in threaded connection with the pushing shaft, the outer surface of the multi-head screw rod is provided with a multi-head thread, and the outer surface of the multi-head screw rod is connected with the end cover in a matched mode.
Further, the friction plate group is sleeved on the wheel edge speed reduction driven shaft, and the brake piston is arranged in parallel with the friction plate group.
Further, a thread line is arranged on the pushing shaft, one end of the pushing shaft is arranged in the brake seat, a pushing block is arranged on the end of the pushing shaft, and the pushing block is abutted against the surface of the brake piston.
Further, the other end of the pushing shaft is arranged outside the braking seat, a braking handle and a locking nut are connected to the pushing shaft in a threaded mode, and the braking handle is fixed to the pushing shaft through the locking nut.
Further, one end of the end cover, which is close to the brake seat, is provided with a cavity for installing an oil seal, and the other end of the end cover is provided with a cavity matched with the multi-head screw rod.
Further, the inner ring of the oil seal is matched with the pushing shaft, and the outer ring of the oil seal is matched with the end cover.
Further, the return spring is sleeved on the multi-head screw rod of the brake handle, one end of the return spring is connected with the outer end of the end cover, and the other end of the return spring is fixed on the operating rod of the brake handle.
Further, the friction plate group comprises friction plates A and friction plates B which are alternately arranged, and the friction plates A and the friction plates B are arranged in parallel.
Further, the friction plate B is connected with the wheel edge speed reduction driven shaft through a spline.
Further, the outer ring of the friction plate A is provided with a plurality of rectangular bulges, and the friction plate A is clamped in the braking seat through the rectangular bulges.
After the technical scheme is adopted, compared with the prior art, the utility model has the following advantages:
by stirring the brake handle to rotate, the brake handle is connected with the end cover in a matched manner through a multi-head thread line, so that the pushing shaft moves towards the brake piston, the friction plate group is pressed, the rotation of the wheel edge deceleration driven shaft is limited, and the braking is completed; when the pulling of the brake handle is canceled, the return spring drives the brake handle to automatically reset;
the utility model has simple and reasonable structure, can ensure the stability of the braking mode, and better reduces the risk of oil leakage in wet braking by arranging the oil seal between the pushing shaft and the end cover, besides, the utility model has simple manufacture of parts and greatly reduces the manufacturing cost.
The utility model will now be described in detail with reference to the drawings and examples.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic structural view of friction plate A;
FIG. 3 is a schematic view of the structure of the pushing shaft;
FIG. 4 is a schematic structural view of a brake handle;
fig. 5 is a schematic structural view of the end cap.
In the figure, a 1-braking seat, a 2-friction plate A, a 3-friction plate B, a 4-braking piston, a 5-end cover, a 6-oil seal, a 7-return spring, an 8-braking handle, a 9-pushing shaft, a 10-locking nut, an 11-wheel-side speed reduction driven shaft, a 12-rectangular bulge, a 13-pushing block, a 14-multi-head screw rod and a 15-operating rod.
Detailed Description
For a clearer understanding of technical features, objects, and effects of the present utility model, a specific embodiment of the present utility model will be described with reference to the accompanying drawings.
As shown in fig. 1-5 together, the utility model provides a wet brake mechanism of a tractor, which comprises a brake seat 1, wherein the brake seat 1 is fixedly connected with the outer wall of a bottom axle housing, a friction plate group and a brake piston 4 are arranged in the brake seat 1, the friction plate group is sleeved on a wheel side deceleration driven shaft 11, and the brake piston 4 is arranged in parallel with the friction plate group; an end cover 5 is arranged at one end of the brake seat 1, which is far away from the bottom bridge shell; a pushing shaft 9 capable of moving up and down is arranged in the end cover 5 in a penetrating way, the outer end of the pushing shaft 9 is connected with a brake handle 8, and a return spring 7 is arranged between the brake handle 8 and the outer end of the end cover 5.
The pushing shaft 9 is provided with a thread, one end of the pushing shaft 9 is arranged in the brake seat 1, the end part of the pushing shaft 9 is provided with a pushing block 13, and the pushing block 13 is abutted against the surface of the brake piston 4.
An oil seal 6 is arranged between the pushing shaft 9 and the end cover 5, the inner ring of the oil seal 6 is matched with the pushing shaft 9, and the outer ring of the oil seal 6 is matched with the end cover 5.
The other end of the pushing shaft 9 is arranged outside the brake seat 1, a brake handle 8 and a lock nut 10 are connected to the pushing shaft 9 in a threaded mode, and the brake handle 8 is fixed on the pushing shaft 9 through the lock nut 10 and fastened into a whole.
The brake handle 8 comprises two parts of a multi-head screw rod 14 and an operating rod 15 which are fixedly connected, the inner surface of the multi-head screw rod 14 is provided with a thread, the inner surface of the multi-head screw rod 14 is in threaded connection with the pushing shaft 9, the outer surface of the multi-head screw rod 14 is provided with a multi-head thread, and the outer surface of the multi-head screw rod 14 is in matched connection with the end cover 5.
One end of the end cover 5, which is close to the brake seat 1, is provided with a cavity for installing an oil seal 6, and the other end of the end cover is provided with a cavity matched with the multi-head screw rod 14.
The return spring 7 is sleeved on the multi-head screw rod 14 of the brake handle 8, one end of the return spring 7 is connected with the outer end of the end cover 5, and the other end of the return spring 7 is fixed on the operating rod 15 of the brake handle 8.
The friction plate group comprises friction plates A2 and friction plates B3 which are alternately arranged, and the friction plates A2 and the friction plates B3 are arranged in parallel.
The friction plate B3 is connected with the wheel edge speed reduction driven shaft 11 through a spline.
The outer ring of the friction plate A2 is provided with a plurality of rectangular bulges 12, and the friction plate A2 is clamped in the brake seat 1 through the rectangular bulges 12.
The specific working principle of the utility model is as follows:
by pulling the operating rod 15 of the brake handle 8 to rotate in one direction, the multi-head screw rod 14 of the brake handle 8 is connected with the end cover 5 in a matched manner through a multi-head thread, so that the pushing shaft 9 moves towards the direction of the brake piston 4, and at the moment, the pushing shaft 9 pushes the brake piston 4 to press the friction plate group, so that the rotation of the wheel edge deceleration driven shaft 11 is limited, and the braking is completed. When the operating lever 15 for pulling the brake handle 8 is canceled, the return spring 7 drives the brake handle 8 to return, so that the wheel edge deceleration driven shaft 11 is not limited to rotate.
The wet braking mechanism of the tractor can ensure the stability of a braking mode, and better reduce the risk of oil leakage of wet braking.
The foregoing is illustrative of the best mode of carrying out the utility model, and is not presented in any detail as is known to those of ordinary skill in the art. The protection scope of the utility model is defined by the claims, and any equivalent transformation based on the technical teaching of the utility model is also within the protection scope of the utility model.
Claims (10)
1. A tractor wet brake mechanism, characterized in that: the brake device comprises a brake seat (1), wherein the brake seat (1) is fixedly connected with the outer wall of a bottom axle housing, a friction plate group and a brake piston (4) are arranged in the brake seat (1), and an end cover (5) is arranged at one end, far away from the bottom axle housing, of the brake seat (1); a pushing shaft (9) capable of moving up and down is arranged in the end cover (5) in a penetrating way, an oil seal (6) is arranged between the pushing shaft (9) and the end cover (5), the outer end of the pushing shaft (9) is connected with a brake handle (8), and a return spring (7) is arranged between the brake handle (8) and the outer end of the end cover (5);
the brake handle (8) is composed of a multi-head screw rod (14) and an operating rod (15) which are fixedly connected, the inner surface of the multi-head screw rod (14) is provided with a thread, the inner surface is in threaded connection with the pushing shaft (9), the outer surface of the multi-head screw rod (14) is provided with a multi-head thread, and the outer surface is connected with the end cover (5) in a matched mode.
2. The tractor wet brake mechanism as defined by claim 1 wherein: the friction plate group is sleeved on a wheel edge deceleration driven shaft (11), and the brake piston (4) is arranged in parallel with the friction plate group.
3. The tractor wet brake mechanism as defined by claim 1 wherein: the pushing shaft (9) is provided with a thread, one end of the pushing shaft (9) is arranged in the brake seat (1), the end part of the pushing shaft (9) is provided with a pushing block (13), and the pushing block (13) is abutted against the surface of the brake piston (4).
4. A tractor wet brake mechanism as defined by claim 3 wherein: the other end of the pushing shaft (9) is arranged outside the braking seat (1), a braking handle (8) and a locking nut (10) are connected to the pushing shaft (9) in a threaded mode, and the braking handle (8) is fixed on the pushing shaft (9) through the locking nut (10).
5. The tractor wet brake mechanism as defined by claim 1 wherein: one end of the end cover (5) close to the brake seat (1) is provided with a cavity for installing an oil seal (6), and the other end of the end cover is provided with a cavity matched with the multi-head screw rod (14).
6. The tractor wet brake mechanism as defined by claim 1 wherein: the inner ring of the oil seal (6) is matched with the pushing shaft (9), and the outer ring of the oil seal (6) is matched with the end cover (5).
7. The tractor wet brake mechanism as defined by claim 1 wherein: the return spring (7) is sleeved on a multi-head screw rod (14) of the brake handle (8), one end of the return spring (7) is connected with the outer end of the end cover (5), and the other end of the return spring (7) is fixed on an operating rod (15) of the brake handle (8).
8. The tractor wet brake mechanism as defined by claim 1 wherein: the friction plate group comprises friction plates A (2) and friction plates B (3) which are alternately arranged, and the friction plates A (2) and the friction plates B (3) are arranged in parallel.
9. The tractor wet brake mechanism as defined by claim 8 wherein: the friction plate B (3) is connected with the wheel edge deceleration driven shaft (11) through a spline.
10. The tractor wet brake mechanism as defined by claim 9 wherein: the outer ring of the friction plate A (2) is provided with a plurality of rectangular bulges (12), and the friction plate A (2) is clamped in the brake seat (1) through the rectangular bulges (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322314811.6U CN220600302U (en) | 2023-08-28 | 2023-08-28 | Wet-type braking mechanism of tractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322314811.6U CN220600302U (en) | 2023-08-28 | 2023-08-28 | Wet-type braking mechanism of tractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220600302U true CN220600302U (en) | 2024-03-15 |
Family
ID=90174756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322314811.6U Active CN220600302U (en) | 2023-08-28 | 2023-08-28 | Wet-type braking mechanism of tractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220600302U (en) |
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2023
- 2023-08-28 CN CN202322314811.6U patent/CN220600302U/en active Active
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