Hydraulic braking system of corn harvester

Abstract

The utility model relates to a hydraulic brake system of a corn harvester, which belongs to the technical field of corn harvester equipment and comprises a brake pedal, a brake pump and a brake component. The bottom end of the brake pedal is connected with the movable end of the brake pump, an oil outlet of the brake pump is communicated with the brake assembly through an oil pipe, the brake assembly comprises a first brake unit and a second brake unit, the first brake unit is connected to the transmission shaft, and the second brake unit is connected with the front drive axle. According to the utility model, the transmission shaft and the front drive axle are simultaneously provided with the brake assemblies, so that the braking force can be distributed more uniformly, and the balanced force distribution is beneficial to improving the braking efficiency and improving the controllability especially under the uneven or wet and slippery field conditions.

Description

Technical Field

[0001] The utility model relates to a hydraulic brake system, in particular to a hydraulic brake system for a corn harvester, and belongs to the technical field of corn harvester equipment. Background Art

[0002] Corn harvesters, as an important part of agricultural mechanization, their safety performance, especially the stability of the brake system, is directly related to the operating efficiency and the life safety of the operator. Chinese utility model patent CN206031354U discloses an emergency brake system in case of brake failure, including a brake disc, a brake pad, a brake pump and a control module, wherein the brake disc is fixedly connected to the first drive shaft of the automobile gearbox and the front drive axle differential, the front drive axle differential is connected to the front wheel through the front drive axle half shaft, and is connected to the rear axle differential through the second drive shaft, and the rear axle differential is connected to the rear wheel through the rear axle half shaft. Although the application discloses the design of setting a brake disc on the drive shaft, it will lead to uneven transmission of braking force. The vehicle needs a longer distance to stop during emergency braking, and the braking distance is extended, which affects the braking efficiency. Utility Model Content

[0003] Technical purpose: In order to overcome the deficiencies in the prior art, the utility model provides a corn harvester hydraulic brake system, which controls the first brake unit and the second brake unit through a brake pump, thereby simplifying the structure of the entire brake system, while improving the braking efficiency and enhancing the system reliability.

[0004] Technical solution: To achieve the above-mentioned purpose, the utility model discloses a corn harvester hydraulic brake system, including a brake pedal, a brake pump and a brake assembly; the bottom end of the brake pedal is connected to the movable end of the brake pump, and the oil outlet of the brake pump is connected to the brake assembly through an oil pipe, and the brake assembly includes a first brake unit and a second brake unit, the first brake unit is connected to the transmission shaft, and the second brake unit is connected to the front drive axle.

[0005] Furthermore, the first brake unit is close to the rear drive axle, and includes a first brake disc and a first brake pad. The brake pump can drive the first brake pad to contact or leave the first brake disc.

[0006] Furthermore, the second brake unit includes a second brake disc and a second brake pad, and the brake pump can drive the second brake pad to contact or leave the second brake disc.

[0007] Furthermore, the oil inlet of the brake pump is connected to a brake oil tank through an oil pipe, and the brake oil tank is connected above the driving platform.

[0008] Furthermore, a first brake cylinder is connected to the surface of the first brake pad.

[0009] Furthermore, a second brake cylinder is connected to the surface of the second brake pad.

[0010] Furthermore, the transmission shaft is connected to the front drive axle and the first brake unit by a universal joint spline shaft.

[0011] The utility model can distribute the braking force more evenly by arranging the braking components on the transmission shaft and the front drive axle at the same time, especially in uneven or slippery field conditions, such balanced force distribution helps to improve braking efficiency and enhance controllability; since the braking force is more efficient and evenly distributed, the braking distance of the corn harvester in an emergency situation is effectively shortened, thereby enhancing safety; the entire system only requires one brake pump control, and the single brake pump reduces the complexity of the system, thereby reducing the system failure rate caused by complexity, improving system reliability, and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model (I);

[0013] Figure 2 This is a schematic diagram of the overall structure of the utility model (II);

[0014] Figure 3 for Figure 1 The structural diagram of part A in the figure;

[0015] Figure 4 for Figure 2 The structural diagram of part B;

[0016] Figure 5 for Figure 2 Schematic diagram of the structure of part C;

[0017] Figure 6 It is a structural schematic diagram of the brake pump described in the utility model.

[0018] In the figure, 1. brake pedal; 2. brake pump; 301. first brake unit; 3101. first brake disc; 3102. first brake pad; 302. second brake unit; 3201. second brake disc; 3202. second brake pad; 4. oil outlet; 5. oil pipe; 6. transmission shaft; 7. front drive axle; 8. rear drive axle; 9. oil inlet; 10. brake oil tank; 11. driving platform; 12. first brake cylinder; 13. second brake cylinder. DETAILED DESCRIPTION

[0019] The following is combined with Figure 1 To Attachment Figure 6The principles and features of the present invention are described, and the examples given are only used to explain the present invention, and are not used to limit the scope of the present invention.

[0020] A corn harvester hydraulic brake system includes a brake pedal 1, a brake pump 2 and a brake assembly; the bottom end of the brake pedal 1 is connected to the movable end of the brake pump 2, the oil outlet 4 of the brake pump 2 is connected to the brake assembly through an oil pipe 5, and the brake assembly includes a first brake unit 301 and a second brake unit 302, the first brake unit 301 is connected to a transmission shaft 6, and the second brake unit 302 is connected to a front drive axle 7. By arranging the brake assembly on the transmission shaft 6 and the front drive axle 7 at the same time, the braking force can be distributed more evenly, especially in uneven or slippery field conditions, such balanced force distribution helps to improve braking efficiency and enhance handling.

[0021] The first brake unit 301 is close to the rear drive axle 8 and includes a first brake disc 3101 and a first brake pad 3102. The brake pump 2 can drive the first brake pad 3102 to contact or leave the first brake disc 3101. The surface of the first brake pad 3102 is connected to the first brake cylinder 12.

[0022] The second brake unit 302 includes a second brake disc 3201 and a second brake pad 3202. The brake pump 2 can drive the second brake pad 3202 to contact or leave the second brake disc 3201. The second brake pad 3202 is connected to the surface of the second brake cylinder 13.

[0023] The oil inlet 9 of the brake pump 2 is connected to the brake oil pot 10 through the oil pipe 5. The brake oil pot 10 is connected above the driving platform 11. The brake oil pot 10 continuously supplies stable brake fluid to the brake pump 2 to ensure the smooth output of braking force.

[0024] The transmission shaft 6 is connected to the front drive axle 7 and the first brake unit 301 by a universal joint spline shaft.

[0025] Working principle:

[0026] When braking is needed, the driver steps on the brake pedal 1, and the brake pump 2 quickly presses the brake oil into the oil pipe 5. The oil outlet 4 of the brake pump 2 is connected to the first brake unit 301 and the second brake unit 302 through a three-way connector. The first brake cylinder 12 is pushed by the hydraulic force to push the first brake pad 3102, giving a clamping force to the first brake disc 3101. Because the first brake disc 3101 is installed on the transmission shaft 6 close to the rear drive axle 8, it provides braking force to the left and right half-axles of the rear drive axle 8 through the rear axle spline shaft, forcing the left and right half-axles to slow down until the front tire stops rolling; the working principle of the second brake unit 302 is the same as above, and the second brake cylinder 13 is pushed by the hydraulic force to push the second brake pad 3202, giving a clamping force to the second brake disc 3201. Because the second brake disc 3201 is connected to the front drive axle 7, it provides braking force to the left and right half-axles of the front drive axle 7, forcing the left and right half-axles to slow down until the rear tire stops rolling, so that the tire and the road surface have a greater friction, and finally the purpose of parking is achieved, and the braking ends.

[0027] The corn harvester is provided with a first brake unit 301 and a second brake unit 302 on the transmission shaft 6 and the front drive axle 7 respectively, and the braking is performed by a single brake pump 2, which not only improves the braking efficiency and safety, but also simplifies the system structure, reduces the cost, and improves the convenience of operation and the reliability of the machine.

[0028] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A corn harvester hydraulic brake system, characterized in that: The invention comprises a brake pedal (1), a brake pump (2) and a brake assembly; the bottom end of the brake pedal (1) is connected to the movable end of the brake pump (2); the oil outlet (4) of the brake pump (2) is connected to the brake assembly via an oil pipe (5); the brake assembly comprises a first brake unit (301) and a second brake unit (302); the first brake unit (301) is connected to a transmission shaft (6); and the second brake unit (302) is connected to a front drive axle (7).

2. The corn harvester hydraulic brake system according to claim 1, characterized in that: The first brake unit (301) is close to the rear drive axle (8), and comprises a first brake disc (3101) and a first brake pad (3102). The brake pump (2) can drive the first brake pad (3102) to contact or leave the first brake disc (3101).

3. The corn harvester hydraulic brake system according to claim 1, characterized in that: The second brake unit (302) comprises a second brake disc (3201) and a second brake pad (3202), and the brake pump (2) can drive the second brake pad (3202) to contact or leave the second brake disc (3201).

4. The corn harvester hydraulic brake system according to claim 1, characterized in that: The oil inlet (9) of the brake pump (2) is connected to a brake oil pot (10) via an oil pipe (5), and the brake oil pot (10) is connected above the driving platform (11).

5. The corn harvester hydraulic brake system according to claim 2, characterized in that: The surface of the first brake pad (3102) is connected to a first brake cylinder (12).

6. The corn harvester hydraulic brake system according to claim 3, characterized in that: The surface of the second brake pad (3202) is connected to a second brake cylinder (13).

7. The corn harvester hydraulic brake system according to claim 1, characterized in that: The transmission shaft (6) is connected to the front drive axle (7) and the first brake unit (301) by means of a universal joint spline shaft.

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