Brake system and agricultural machine

Abstract

The utility model discloses a braking system and agricultural machinery, the braking system comprises a box body and a power shaft rotatably arranged in the box body, the power shaft is coaxially provided with a main gear used for power input, one end of the power shaft is provided with a transmission gear used for power output, and the other end of the power shaft is provided with a transmission shaft. One end of the normally-open clutch is provided with a brake mechanism, the other end of the normally-open clutch is provided with a friction type brake mechanism, the other end of the normally-open clutch and the box body are fixedly arranged relatively, and the normally-open clutch is matched with a clutch shifting fork; a brake rotating shaft is rotatably arranged on the box body, and the clutch shifting fork is installed on the brake rotating shaft. The brake system and the agricultural machine have the advantages of being simple and reasonable in structure, convenient to operate and control, beneficial to reducing cost and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of braking, in particular to a braking system and an agricultural machine. Background Art

[0002] In a vehicle's driving system, both a throttle and brake system are often used to control speed. The throttle system regulates power output by controlling the throttle opening, while the brake system actively decelerates by reducing wheel speed through friction. Typically, the brake system acts directly on the wheels. For a vehicle with two wheels, separate brake pads are required, and the brake system must be able to distribute braking force appropriately to ensure smooth and reliable braking. This type of brake system is complex and expensive to manufacture. Utility Model Content

[0003] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is: how to provide a brake system and agricultural machinery with a simple and reasonable structure, easy operation, and conducive to cost reduction.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0005] A braking system, characterized in that it includes a housing and a power shaft rotatably arranged in the housing, a main gear for power input is coaxially arranged on the power shaft, a transmission gear for power output is arranged at one end of the power shaft, and a friction brake mechanism is installed at the other end, the friction brake mechanism includes a rotating part and a braking part, the rotating part is coaxially arranged on the power shaft, and the braking part is fixed relative to the housing.

[0006] Furthermore, the friction brake mechanism is a normally open clutch coaxially mounted on the power shaft, and the housing of the normally open clutch is fixed relative to the housing; the normally open clutch is equipped with a clutch fork; a brake shaft is rotatably provided on the housing, and the clutch fork is mounted on the brake shaft.

[0007] During operation, power is transmitted from the main gear to the power shaft and out through the power shaft's transmission gear. To brake, the brake shaft rotates, and the clutch fork pushes the clutch to engage. Because the other end of the clutch is fixed relative to the housing, the engaged clutch creates resistance on the power shaft, reducing the shaft's speed and achieving braking. This structure requires only a clutch on the power shaft for braking, simplifying the overall structure and reducing costs.

[0008] Furthermore, the transmission gear is a driving bevel gear coaxially arranged on the power shaft, an output shaft for connecting to the wheel is rotatably passed through the box body, and a driven bevel gear meshing with the driving bevel gear is installed on the output shaft.

[0009] Furthermore, a mounting hole is coaxially provided on the output shaft and penetrates along the axial direction, and the mounting hole is a regular hexagon.

[0010] This allows the hexagonal axle to be inserted through the mounting hole for quick installation or replacement of wheels.

[0011] Furthermore, the power shaft includes a main shaft and a brake shaft, one end of the main shaft has an external spline; a spline hole is coaxially arranged on the main gear, and is fitted on the external spline of the main shaft; one end of the brake shaft is connected to the friction brake mechanism, and the other end has a flange protruding in the radial direction, and the flange is fixedly connected to the main gear.

[0012] Furthermore, the flange has bolt holes extending therethrough, and a plurality of the bolt holes are evenly distributed along the circumference; the main gear has threaded holes corresponding to the bolt holes, and the flange is connected to the threaded holes of the main gear by bolts passing through the bolt holes.

[0013] Furthermore, the main gear has a coaxially arranged circular positioning groove on a side facing the brake shaft, the inner diameter of the circular positioning groove is consistent with the outer diameter of the flange, and the flange fits in the circular positioning groove.

[0014] Furthermore, the box body includes a brake box located at the top, and the bottom opening of the brake box is connected to a traveling box extending downward, and the power shaft is rotatably vertically arranged in the traveling box through a bearing, and the main gear is located in the brake box and is installed on the power shaft; the top of the brake box is open, and a cover plate is detachably fixed thereon, and the cover plate has a locking hole set therethrough, and a plurality of locking holes are evenly distributed along the circumference of the power shaft; the top of the housing of the normally open clutch has a locking threaded hole corresponding to the locking hole, and a locking bolt is passed through the locking hole and connected to the corresponding locking threaded hole.

[0015] The box body includes a brake box located at the top, and a traveling box extending downward is connected to the bottom opening of the brake box. The power shaft is rotatably arranged vertically in the traveling box through a bearing, and the main gear is located in the brake box and is installed on the power shaft; the lower end of the traveling box has a traveling hole arranged horizontally through, and both ends of the output shaft are rotatably mounted in the traveling hole through bearings, and the driven bevel gear is fixedly mounted on the output shaft; the driving bevel gear is meshed with the driven bevel gear; the traveling box has an assembly hole on one side of the output shaft in the axial direction, and a side cover is detachably fixed on the assembly hole, and one of the traveling holes is arranged through the side cover.

[0016] An agricultural machine is characterized by comprising the brake system as described above.

[0017] In summary, the brake system and agricultural machinery of the present invention have the advantages of simple and reasonable structure, convenient operation, and benefit in reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Schematic diagram of the overall structure of this embodiment.

[0019] Figure 2 This is a structural diagram of the assembled hexagonal axis state of this embodiment.

[0020] Figure 3 for Figure 1 Schematic diagram of the cross-sectional structure.

[0021] Figure 4 and Figure 5 for Figure 1 Schematic diagram of the internal structure. DETAILED DESCRIPTION

[0022] The present invention will be further described in detail below with reference to the embodiments.

[0023] When implementing: Figures 1 to 5As shown, it includes a housing 1 and a power shaft 2 rotatably disposed within the housing 1, a main gear 3 for power input being coaxially disposed on the power shaft 2, a transmission gear 4 for power output being disposed at one end of the power shaft 2, and a friction brake mechanism 5 being mounted at the other end, the friction brake mechanism 5 comprising a rotating component and a braking component, the rotating component being coaxially disposed on the power shaft 2, and the braking component being fixed relative to the housing 1. In this embodiment, the friction brake mechanism 5 is a normally open clutch coaxially mounted on the power shaft 2, the housing of the normally open clutch being fixed relative to the housing 1; a clutch fork 6 being fitted to the normally open clutch; a brake shaft 7 being rotatably disposed on the housing 1, and the clutch fork 6 being mounted on the brake shaft 7.

[0024] The transmission gear 4 is a driving bevel gear coaxially mounted on the power shaft 2. The driving bevel gear is integrally formed on the power shaft 2. An output shaft 8 for connecting to a wheel is rotatably mounted on the housing 1. Mounted on the output shaft 8 is a driven bevel gear 9 that meshes with the driving bevel gear. A mounting hole 81 is coaxially provided on the output shaft 8, extending axially therethrough. This mounting hole 81 is a regular hexagon. This allows for the insertion of a hexagonal shaft through the mounting hole, facilitating quick installation or replacement of wheels.

[0025] The housing 1 includes a brake box 11 located at the top, and a travel box 12 extending downward is connected to the bottom opening of the brake box 11. The power shaft 2 is rotatably arranged vertically in the travel box 12 through a bearing. The main gear 3 is located in the brake box 11 and is mounted on the power shaft 2. In this embodiment, the main gear 3 is a bevel gear. In a specific implementation, the main gear 3 can also be a spur gear or a transmission gear of other structural forms. The lower end of the travel box 12 has a travel hole that is transversely through-set. The two ends of the output shaft 8 are rotatably mounted in the travel hole through bearings. The driven bevel gear 9 is fixedly mounted on the output shaft 8 through a spline fit, and the active bevel gear is meshed with the driven bevel gear 9.

[0026] The top of the brake box 11 is open and a cover is detachably fixed thereon, the cover having a locking hole extending therethrough, and a plurality of locking holes are evenly distributed along the circumference of the power shaft 2; the top of the housing of the normally open clutch has a locking threaded hole corresponding to the locking hole, and a locking bolt is passed through the locking hole and connected to the corresponding locking threaded hole; one side of the brake box 11 has a bearing hole extending therethrough along the radial direction of the power shaft 2 for connecting the power input shaft; the traveling box 12 has an assembly hole on one side in the axial direction of the output shaft 8, and a side cover 13 is detachably fixed thereon, and one of the traveling holes is provided through the side cover 13.

[0027] Specifically, the power shaft 2 includes a main shaft 21 and a brake shaft 22. One end of the main shaft 21 has an external spline. The main gear 3 is coaxially provided with a spline hole and is fitted over the external spline of the main shaft 2. One end of the brake shaft 22 is connected to the normally open clutch, and the other end has a flange protruding radially, which is fixedly connected to the main gear 3. The main gear 3 has a coaxially provided circular positioning groove on the side facing the brake shaft 22. The inner diameter of the circular positioning groove is consistent with the outer diameter of the flange, and the flange fits into the circular positioning groove. In this way, the brake shaft, main gear, and main shaft can be better coaxially assembled. The flange has bolt holes that are arranged through it, and multiple bolt holes are evenly distributed along the circumference. The circular positioning groove of the main gear 3 has threaded holes corresponding to the bolt holes. The flange is connected to the threaded holes of the main gear 3 by bolts passing through the bolt holes.

[0028] When implementing, if Figure 2 As shown, the hexagonal shaft is passed through the mounting hole of the output shaft 8, and wheels are mounted on both ends of the hexagonal shaft. Then, the hexagonal shaft and the wheels can be driven to rotate by the output shaft.

[0029] In the brake system of this embodiment, the main gear is used as the power input, so that at least one end of the power shaft can be in an idle state, which is convenient for installing a normally open clutch. During operation, power is transmitted from the main gear to the power shaft and is transmitted by the transmission gear of the power shaft. When braking, the brake shaft is rotated, and the clutch fork pushes the clutch to engage. Since the other end of the clutch is relatively fixed to the housing, the engaged clutch generates resistance to the power shaft, thereby reducing the rotation speed of the power shaft and achieving braking. The above structure only requires a clutch to be set on the power shaft for braking, which makes the overall structure simpler and helps to reduce costs.

[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A braking system, characterized in that: The invention comprises a housing (1) and a power shaft (2) rotatably arranged in the housing (1), wherein a main gear (3) for power input is coaxially arranged on the power shaft (2), a transmission gear (4) for power output is arranged at one end of the power shaft (2), and a friction brake mechanism (5) is installed at the other end, wherein the friction brake mechanism (5) comprises a rotating component and a braking component, wherein the rotating component is coaxially arranged on the power shaft (2), and the braking component is fixedly arranged relative to the housing (1); the friction brake mechanism (5) is a normally open clutch coaxially arranged on the power shaft (2), and the housing of the normally open clutch is fixedly arranged relative to the housing (1); the normally open clutch is equipped with a clutch fork (6); a brake shaft (7) is rotatably arranged on the housing (1), and the clutch fork (6) is installed on the brake shaft (7).

2. The brake system according to claim 1, wherein: The transmission gear (4) is a driving bevel gear coaxially arranged on the power shaft (2); an output shaft (8) for connecting to a wheel is rotatably passed through the housing (1); a driven bevel gear (9) meshing with the driving bevel gear is mounted on the output shaft (8).

3. The brake system according to claim 2, wherein: The output shaft (8) is coaxially provided with a mounting hole (81) that penetrates in the axial direction, and the mounting hole (81) is in the shape of a regular hexagon.

4. The brake system according to any one of claims 1 to 2, characterized in that: The power shaft (2) includes a main shaft (21) and a brake shaft (22), one end of the main shaft (21) has an external spline; a spline hole is coaxially provided on the main gear (3) and is fitted on the external spline of the main shaft (21); one end of the brake shaft (22) is connected to the friction brake mechanism, and the other end has a flange protruding in the radial direction, and the flange is fixedly connected to the main gear (3).

5. The brake system according to claim 4, wherein: The flange has bolt holes extending therethrough, with a plurality of bolt holes being evenly distributed along the circumference; the main gear (3) has threaded holes corresponding to the bolt holes, and the flange is connected to the threaded holes of the main gear (3) via bolts passing through the bolt holes.

6. The brake system according to claim 4, wherein: The main gear (3) has a coaxially arranged circular positioning groove on one side facing the brake shaft (22), the inner diameter of the circular positioning groove being consistent with the outer diameter of the flange, and the flange is fitted in the circular positioning groove.

7. The brake system according to claim 1 or 2, characterized in that: The housing (1) includes a brake box (11) located at the top, the bottom opening of the brake box (11) is connected to a travel box (12) extending downward, the power shaft (2) is rotatably arranged vertically in the travel box (12) through a bearing, and the main gear (3) is located in the brake box (11) and is installed on the power shaft (2); the top of the brake box (11) is open and a cover is detachably fixed thereon, the cover has a locking hole arranged therethrough, and a plurality of the locking holes are evenly distributed along the circumference of the power shaft (2); the top of the housing of the normally open clutch has a locking threaded hole arranged corresponding to the locking hole, and a locking bolt is passed through the locking hole and connected to the corresponding locking threaded hole.

8. The brake system according to claim 2, wherein: The housing (1) includes a brake box (11) located above, a travel box (12) extending downward is connected to the bottom opening of the brake box (11), the power shaft (2) is rotatably arranged vertically in the travel box (12) through a bearing, the main gear (3) is located in the brake box (11) and is mounted on the power shaft (2); the lower end of the travel box (12) has a travel hole arranged transversely through, both ends of the output shaft (8) are rotatably mounted in the travel hole through bearings, and the driven bevel gear (9) is fixedly mounted on the output shaft (8); the driving bevel gear is meshed with the driven bevel gear (9); the travel box (12) has an assembly hole on one side of the output shaft (8) in the axial direction, and a side cover is detachably fixed on the assembly hole, and one of the travel holes is arranged through the side cover.

9. An agricultural machine, characterized in that: The invention comprises a brake system according to any one of claims 1 to 8.

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