A brake force-adjustable wet brake

Abstract

The utility model discloses a kind of brake force adjustable wet brake, it is related to wet brake technical field, the brake force adjustable wet brake includes wet brake body, and oil pressure control brake mechanism is installed in the wet brake body outside;The utility model, by the cooperation of pressure regulating screw, pressure regulating spring and valve core assembly, brake oil pressure can be continuously adjusted according to working condition requirement, realize the linear adjustment of brake force, adapt to the brake demand of different scenes such as no-load, full load, downhill;Oil pressure control brake mechanism is directly connected with the pressure oil port of brake body through oil pressure interface, simplifies pipeline layout, reduces the risk of leakage, while the efficiency of oil flow is improved by the hourglass type oil path design of valve block shell, and response speed is faster.

Description

Technical Field

[0001] This utility model specifically relates to the field of wet brake technology, and more specifically to a wet brake with adjustable braking force. Background Technology

[0002] In the field of heavy-duty equipment such as construction machinery, mining vehicles, and heavy trucks, the reliability of the braking system and the precision of braking force adjustment are directly related to the safety and efficiency of equipment operation. Traditional dry brakes, because the friction pads are exposed to the air, are susceptible to dust, moisture, and high temperatures, resulting in rapid performance degradation and severe wear, and a high failure rate under harsh working conditions. While conventional wet brakes solve the heat dissipation and protection problems through an oil immersion environment, the braking force is mostly fixed and difficult to adjust in real time according to load changes, driving speed, and road conditions. In scenarios such as switching between no-load and full-load conditions and downhill braking, insufficient braking or lock-up can easily occur, which not only affects work efficiency but also poses a great safety hazard.

[0003] As heavy-duty equipment develops towards intelligence and efficiency, higher demands are placed on the dynamic adjustment capabilities of braking systems. Existing hydraulic control braking mechanisms mostly adopt simple valve group designs, resulting in low pressure regulation accuracy, slow response speed, and difficulty in achieving efficient integration with the brake body, leading to complex overall structures and inconvenient maintenance. Utility Model Content

[0004] The purpose of this utility model is to provide a wet brake with adjustable braking force. By installing the hydraulic control braking mechanism with the wet brake body, the wet brake is improved in terms of braking force accuracy, heat dissipation and protection, structural stability and ease of maintenance, thereby solving the technical problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A wet brake with adjustable braking force, comprising:

[0007] A wet brake body, on the outside of which a hydraulic control braking mechanism is installed;

[0008] The hydraulic control braking mechanism includes a hydraulic interface, the upper end of which is fixedly connected to the valve block housing. The valve block housing has an hourglass-shaped oil passage inside, and an oil inlet and an oil return port are respectively provided on one side of the valve block housing, with the oil return port located above the oil inlet.

[0009] The valve block housing has a valve core assembly inside its upper end. The valve core assembly is conical and has a cavity inside. The cavity is connected to a pressure regulating spring. The upper end of the pressure regulating spring is connected to an adjusting plate. The adjusting plate is annular and its upper end is fixedly connected to a pressure regulating screw.

[0010] As a further technical solution of this utility model, the upper end of the valve block housing is fixedly connected to the module end cover by multiple bolts, and a limiting screw seat is provided in the middle of the module end cover, with the inner side of the limiting screw seat threadedly connected to the pressure regulating screw.

[0011] As a further technical solution of this utility model, the lower end of the valve block housing is connected to the pressure oil port, and the pressure oil port is located on one side of the brake housing.

[0012] As a further technical solution of this utility model, the inner side of the brake housing is connected to the static friction plate group, the inner side of the static friction plate group is provided with a dynamic friction plate group, and the dynamic friction plate group is connected to the spline bushing.

[0013] As a further technical solution of this utility model, the spline bushing is connected to bearings at both ends, and the bearings are respectively located inside the brake housing and inside the front cover; one side of the static friction plate group and the dynamic friction plate group is connected to one end of the brake piston.

[0014] As a further technical solution of this utility model, the other end of the brake piston is provided with a plurality of reset spring groups in a ring array on the inner side, and the other end of the plurality of reset spring groups in a ring array is connected to the inner side of the front end cover.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This utility model, through the cooperation of the pressure adjusting screw, the pressure adjusting spring and the valve core assembly, can continuously adjust the brake oil pressure according to the working conditions, realize the linear adjustment of the braking force, and adapt to the braking needs of different scenarios such as no load, full load, and downhill.

[0017] In this utility model, the hydraulic control braking mechanism is directly connected to the pressure oil port of the brake body through the hydraulic interface, which simplifies the pipeline layout and reduces the risk of leakage. At the same time, the hourglass-shaped oil circuit design of the valve block housing improves the oil flow efficiency and the response speed is faster.

[0018] In this invention, the static friction pad assembly and the dynamic friction pad assembly are in the oil-immersed environment of the brake housing. With the sealing structure of the spline bushing and bearing, dust and moisture are effectively isolated. At the same time, the oil circulation can quickly remove frictional heat and extend the service life of the friction pads.

[0019] In this invention, the reset spring assembly adopts a ring array layout to ensure uniform reset of the brake piston; the rigid connection between the front end cover and the brake housing, as well as the supporting role of the bearing, ensures structural stability during braking and reduces vibration and abnormal noise.

[0020] In this invention, the modular end cap is connected to the valve block housing by bolts, which facilitates the inspection and replacement of components such as the valve core assembly and pressure regulating spring; the friction plate assembly adopts a modular design, which can be quickly disassembled and replaced, reducing maintenance costs. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0022] Figure 2 This utility model Figure 1 Top view.

[0023] Figure 3 This utility model Figure 1 A schematic diagram of the split structure.

[0024] Figure 4 This utility model Figure 3 Top view.

[0025] Figure 5 This utility model Figure 4 A magnified view of a portion of the image.

[0026] Figure 6 This utility model Figure 2 A schematic diagram of the split structure.

[0027] Figure 7 This utility model Figure 6 Top view.

[0028] Figure 8 This utility model Figure 7 BB cross-sectional view.

[0029] Figure 9 This utility model Figure 6 A schematic diagram of the split structure.

[0030] In the diagram: 1-Wet brake body, 2-Hydraulic control brake mechanism;

[0031] 11-Front end cover, 12-Splined bushing, 13-Bearing, 14-Return spring assembly, 15-Brake piston, 16-Static friction plate assembly, 17-Friction plate assembly, 18-Brake housing, 19-Pressure oil port;

[0032] 21-Hydraulic interface, 22-Valve block housing, 23-Oil inlet, 24-Oil return port, 25-Valve core assembly, 26-Module end cover, 27-Pressure regulating spring, 28-Adjusting plate, 29-Pressure regulating screw. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] Please see Figure 1-9 In this embodiment of the present invention, a wet brake with adjustable braking force includes a wet brake body 1, and an oil pressure control braking mechanism 2 is installed on the outside of the wet brake body 1.

[0035] The hydraulic control braking mechanism 2 includes a hydraulic interface 21, the upper end of which is fixedly connected to the valve block housing 22. The valve block housing 22 has an oil passage with an hourglass design inside, and an oil inlet 23 and an oil return port 24 are respectively provided on one side of the valve block housing 22. The oil return port 24 is located above the oil inlet 23.

[0036] The valve block housing 22 has a valve core assembly 25 inside its upper end. The valve core assembly 25 is conical and has a cavity inside. The cavity is connected to the pressure regulating spring 27. The upper end of the pressure regulating spring 27 is connected to the adjusting plate 28. The adjusting plate 28 is annular and its upper end is fixedly connected to the pressure regulating screw 29.

[0037] The upper end of the valve block housing 22 is fixedly connected to the module end cover 26 by multiple bolts. The module end cover 26 is provided with a limiting screw seat in the middle position, and the inner side of the limiting screw seat is threadedly connected to the pressure regulating screw 29.

[0038] By adopting the above technical solution, through the cooperation of the pressure adjusting screw 29, the pressure adjusting spring 27 and the valve core assembly 25, the brake oil pressure can be continuously adjusted according to the working conditions, so as to realize the linear adjustment of the braking force and adapt to the braking needs of different scenarios such as no load, full load, and downhill.

[0039] The module end cap 26 is connected to the valve block housing 22 by bolts, which facilitates the inspection and replacement of components such as the valve core assembly 25 and the pressure regulating spring 27; the friction plate assembly adopts a modular design, which can be quickly disassembled and replaced, reducing maintenance costs.

[0040] In this embodiment, the lower end of the valve block housing 22 is connected to the oil pressure port 19, and the oil pressure port 19 is located on one side of the brake housing 18.

[0041] The brake housing 18 is connected to the static friction plate group 16 on its inner side. The static friction plate group 16 is provided with a moving friction plate group 17 on its inner side. The moving friction plate group 17 is connected to the spline bushing 12.

[0042] By adopting the above technical solution, the static friction plate group 16 and the dynamic friction plate group 17 are in the oil-immersed environment of the brake housing 18. With the sealing structure of the spline bushing 12 and the bearing 13, dust and moisture are effectively isolated. At the same time, the oil circulation can quickly remove frictional heat and extend the service life of the friction plates.

[0043] In this embodiment, bearings 13 are connected to both ends of the spline bushing 12. The bearings 13 are respectively located inside the brake housing 18 and inside the front cover 11. One side of the static friction plate group 16 and the dynamic friction plate group 17 is connected to one end of the brake piston 15.

[0044] The brake piston 15 has multiple reset spring groups 14 arranged in a ring array on the inner side of the other end, and the other end of the multiple reset spring groups 14 arranged in a ring array is connected to the inner side of the front cover 11.

[0045] By adopting the above technical solution, the hydraulic control braking mechanism 2 is directly connected to the pressure oil port 19 of the brake body 1 through the hydraulic interface 21, which simplifies the pipeline layout and reduces the risk of leakage. At the same time, the hourglass-shaped oil circuit design of the valve block housing 22 improves the oil flow efficiency and the response speed is faster.

[0046] The reset spring assembly 14 adopts a ring array layout to ensure uniform reset of the brake piston 15; the rigid connection between the front cover 11 and the brake housing 18 and the supporting role of the bearing 13 ensure the structural stability during braking and reduce vibration and abnormal noise.

[0047] The working principle of this utility model is as follows: When the equipment needs to brake, high-pressure oil enters the valve block housing 22 from the oil inlet 23 of the oil pressure control braking mechanism 2, is guided to the oil pressure interface 21 through the hourglass-shaped oil circuit, and then enters the brake piston 15 chamber inside the brake housing 18 through the pressure oil port 19; under the action of oil pressure, the brake piston 15 overcomes the elastic force of the return spring group 14 and moves towards the static friction plate group 16 and the dynamic friction plate group 17, so that the two sets of friction plates arranged alternately squeeze each other to generate friction force, which is transmitted to the wheel through the spline bushing 12 to achieve the braking effect;

[0048] Braking force adjustment is accomplished through hydraulic control braking mechanism 2: rotating the pressure adjusting screw 29 can drive the adjusting plate 28 to compress or loosen the pressure adjusting spring 27, changing the throttling pressure of the valve core assembly 25 on the oil circuit; when it is necessary to increase the braking force, tightening the pressure adjusting screw 29 increases the elasticity of the pressure adjusting spring 27, increases the resistance of the valve core assembly 25 on the oil circuit, increases the oil pressure entering the brake piston 15, increases the pressure between the friction plates, and enhances the braking force; conversely, loosening the pressure adjusting screw 29 reduces the oil pressure and decreases the braking force; after braking, the high-pressure oil flows back through the return port 24, the reset spring assembly 14 pushes the brake piston 15 to reset, the friction plates separate, and the brake is released;

[0049] By cooperating with the pressure adjusting screw 29, the pressure adjusting spring 27 and the valve core assembly 25, the brake oil pressure can be continuously adjusted according to the working conditions, so as to realize the linear adjustment of the braking force and adapt to the braking needs of different scenarios such as no load, full load, and downhill.

[0050] The hydraulic control braking mechanism 2 is directly connected to the pressure oil port 19 of the brake body 1 through the hydraulic interface 21, which simplifies the pipeline layout and reduces the risk of leakage. At the same time, the hourglass-shaped oil circuit design of the valve block housing 22 improves the oil flow efficiency and the response speed is faster.

[0051] The static friction pad assembly 16 and the dynamic friction pad assembly 17 are in the oil-immersed environment of the brake housing 18. With the sealing structure of the spline bushing 12 and the bearing 13, dust and moisture are effectively isolated. At the same time, the oil circulation can quickly remove friction heat and extend the service life of the friction pads.

[0052] The reset spring assembly 14 adopts a ring array layout to ensure uniform reset of the brake piston 15; the rigid connection between the front cover 11 and the brake housing 18 and the supporting role of the bearing 13 ensure the structural stability during braking and reduce vibration and abnormal noise.

[0053] The module end cap 26 is connected to the valve block housing 22 by bolts, which facilitates the inspection and replacement of components such as the valve core assembly 25 and the pressure regulating spring 27; the friction plate assembly adopts a modular design, which can be quickly disassembled and replaced, reducing maintenance costs.

[0054] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0055] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A wet brake with adjustable braking force, characterized in that: include A wet brake body (1) is provided with a hydraulic control braking mechanism (2) installed on the outside of the wet brake body (1). The hydraulic control braking mechanism (2) includes a hydraulic interface (21), the upper end of which is fixedly connected to the valve block housing (22). The valve block housing (22) has an hourglass-shaped oil passage inside, and an oil inlet (23) and an oil return port (24) are respectively provided on one side of the valve block housing (22). The oil return port (24) is located above the oil inlet (23). The valve block housing (22) has a valve core assembly (25) inside its upper end. The valve core assembly (25) is conical and has a cavity inside. The cavity is connected to the pressure regulating spring (27). The upper end of the pressure regulating spring (27) is connected to the adjusting plate (28). The adjusting plate (28) is annular and its upper end is fixedly connected to the pressure regulating screw (29).

2. The wet brake with adjustable braking force according to claim 1, characterized in that: The upper end of the valve block housing (22) is fixedly connected to the module end cover (26) by multiple bolts. The module end cover (26) is provided with a limiting screw seat in the middle position. The inner side of the limiting screw seat is threadedly connected to the pressure regulating screw (29).

3. The wet brake with adjustable braking force according to claim 2, characterized in that: The lower end of the valve block housing (22) has an oil pressure port (21) connected to a pressure port (19), which is located on one side of the brake housing (18).

4. The wet brake with adjustable braking force according to claim 3, characterized in that: The inner side of the brake housing (18) is connected to the static friction plate group (16), and the inner side of the static friction plate group (16) is provided with a dynamic friction plate group (17), which is connected to the spline bushing (12).

5. The wet brake with adjustable braking force according to claim 4, characterized in that: The spline bushing (12) is connected to bearings (13) at both ends. The bearings (13) are respectively located inside the brake housing (18) and inside the front cover (11). The static friction plate group (16) and the dynamic friction plate group (17) are connected to one end of the brake piston (15) on one side.

6. The wet brake with adjustable braking force according to claim 5, characterized in that: The brake piston (15) has multiple reset spring groups (14) arranged in a ring array on the inner side of the other end. The other end of the multiple reset spring groups (14) arranged in a ring array is connected to the inner side of the front cover (11).

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