Dynamic sealing device for brake shell of brake disc

Abstract

The dynamic sealing device for the brake shell of the brake disc comprises a caliper body, hollow blocks are connected to the two sides of the caliper body in a sleeved mode, the bottoms of the hollow blocks are communicated with hydraulic oil pipelines, a piston is connected to one side of each hollow block in an inserted mode, and the front side of the top of each hollow block is communicated with a cooling liquid inlet pipe. A feeding hole is formed in one side of the hollow block, a movable groove is formed in the inner side of the hollow block, a first sealing ring is fixedly connected to one side of the inner wall of the movable groove, and a second sealing ring is fixedly connected to the other side of the inner wall of the movable groove. By arranging the first sealing ring and the second sealing ring, the sealing effect can be achieved, in the working process, cooling liquid is guided in through the cooling liquid inlet pipe, the cooling liquid makes contact with the piston, the surface of the piston can be cooled, and therefore the situation that the temperature of the surface of the piston is too high, and consequently the first sealing ring and the second sealing ring are damaged is avoided; therefore, the sealing effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of brake disc brake housings, in particular to a dynamic sealing device for brake disc brake housings. Background Art

[0002] In the automobile braking system, the brake disc plays a vital role. It achieves vehicle deceleration and stopping through friction with the brake pads, while the brake disc brake housing serves as a protective component of the brake disc and surrounds the brake disc.

[0003] The existing brake disc brake housing will experience a decrease in sealing effect after being used for a period of time, resulting in a gap between the piston and the cylinder wall, which will cause hydraulic oil to leak out, affecting the braking operation and failing to meet the use requirements. To this end, we propose a dynamic sealing device for the brake disc brake housing. Utility Model Content

[0004] In response to the shortcomings of the existing technology, the purpose of this utility model is to provide a dynamic sealing device for a brake disc brake housing, which has the advantage of good sealing effect and solves the problem that the sealing effect of the existing brake disc brake housing decreases after a period of use, resulting in a gap between the piston and the cylinder wall, causing hydraulic oil to leak, thereby affecting the braking operation and failing to meet the use requirements.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a dynamic sealing device for a brake disc brake housing, comprising a caliper body, hollow blocks are sleeved on both sides of the caliper body, the bottom of the hollow block is connected to a hydraulic oil pipeline, a piston is inserted on one side of the hollow block, the front side of the top of the hollow block is connected to a coolant inlet pipe, a feed hole is provided on one side of the hollow block, a movable groove is provided on the inner side of the hollow block, a first sealing ring is fixedly connected to one side of the inner wall of the movable groove, a second sealing ring is fixedly connected to the other side of the inner wall of the movable groove, a material guide hole is provided on one side of the movable groove, a discharge hole is provided on the other side of the hollow block, one side of the discharge hole is connected to the coolant outlet pipe, and a brake pad is fixedly connected to one side of the piston.

[0006] Preferably, the surfaces of the first sealing ring and the second sealing ring are both provided with functional layers, and the functional layers include a PVDF coating layer and a silicon carbide wear-resistant coating layer.

[0007] Preferably, a prism is inserted into one side of the piston, and one side of the prism is fixedly connected to the hollow block.

[0008] Preferably, the front and back sides of the clamp body are fixedly connected to fixing seats, and a mounting hole is provided on one side of the fixing seat.

[0009] Preferably, one side of the piston is fixedly connected to a spring, and one side of the spring is fixedly connected to the hollow block.

[0010] Preferably, the PVDF coating layer is coated on the surfaces of the first sealing ring and the second sealing ring respectively, and the silicon carbide wear-resistant coating layer is coated on one side of the PVDF coating layer.

[0011] Compared with the prior art, the present invention provides a dynamic sealing device for a brake disc brake housing, which has the following beneficial effects:

[0012] 1. The utility model can achieve a sealing effect by providing a first sealing ring and a second sealing ring. During operation, the coolant is introduced through the coolant inlet pipe so that the coolant contacts the piston, which can cool the surface of the piston, thereby preventing the first sealing ring and the second sealing ring from being damaged due to excessively high surface temperature of the piston, thereby achieving a good sealing effect.

[0013] 2. The utility model has the properties of low friction coefficient, strong wear resistance, good weather resistance, radiation resistance, ozone resistance, high temperature resistance and low temperature resistance by setting a PVDF coating layer. By setting a silicon carbide wear-resistant coating layer, it has the properties of low friction coefficient, wear resistance and high temperature resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the top view of the hollow block of the utility model in a cross-sectional state;

[0016] Figure 3 This is a schematic diagram of the functional layer structure of the utility model;

[0017] Figure 4 This is a schematic diagram of the cross-sectional structure of the functional layer of the utility model.

[0018] In the figure: 1. Clamp body; 2. Hollow block; 3. Hydraulic oil pipeline; 4. Piston; 5. Spring; 6. Coolant inlet pipe; 7. Feed hole; 8. Guide hole; 9. Discharge hole; 10. Movable groove; 11. First sealing ring; 12. Second sealing ring; 13. Prism; 14. Coolant outlet pipe; 15. Functional layer; 151. PVDF coating layer; 152. Silicon carbide wear-resistant coating layer; 16. Fixed seat; 17. Mounting hole; 18. Brake pad. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments. Example

[0021] See also Figure 1 and Figure 2 As shown, the utility model provides a dynamic sealing device for a brake disc brake housing, comprising a caliper body 1, hollow blocks 2 are sleeved on both sides of the caliper body 1, a hydraulic oil pipeline 3 is connected to the bottom of the hollow block 2, a piston 4 is inserted into one side of the hollow block 2, a coolant inlet pipe 6 is connected to the front side of the top of the hollow block 2, a feed hole 7 is provided on one side of the hollow block 2, a movable groove 10 is provided on the inner side of the hollow block 2, a first sealing ring 11 is fixedly connected to one side of the inner wall of the movable groove 10, and a second sealing ring 11 is fixedly connected to the other side of the inner wall of the movable groove 10 The sealing ring 12 and the movable groove 10 are provided with a material guide hole 8 on one side, and a discharge hole 9 is provided on the other side of the hollow block 2. One side of the discharge hole 9 is connected to the coolant outlet pipe 14. A brake pad 18 is fixedly connected to one side of the piston 4. A prism 13 is inserted into one side of the piston 4. One side of the prism 13 is fixedly connected to the hollow block 2. The front and back sides of the caliper body 1 are fixedly connected to a fixing seat 16. A mounting hole 17 is provided on one side of the fixing seat 16. A spring 5 is fixedly connected to one side of the piston 4, and one side of the spring 5 is fixedly connected to the hollow block 2.

[0022] The specific effect of this technical solution is: by setting the first sealing ring 11 and the second sealing ring 12, a sealing effect can be achieved, and during the working process, the coolant is introduced through the coolant inlet pipe 6, so that the coolant contacts the piston 4, which can cool the surface of the piston 4, thereby avoiding the surface temperature of the piston 4 being too high, which may cause damage to the first sealing ring 11 and the second sealing ring 12, thereby achieving a good sealing effect. Example

[0023] On the basis of embodiment 1, the present invention is as follows Figure 3 and Figure 4As shown, it is disclosed that the surfaces of the first sealing ring 11 and the second sealing ring 12 are both provided with a functional layer 15, and the functional layer 15 includes a PVDF coating layer 151 and a silicon carbide wear-resistant coating layer 152. The PVDF coating layer 151 is respectively coated on the surfaces of the first sealing ring 11 and the second sealing ring 12, and the silicon carbide wear-resistant coating layer 152 is coated on one side of the PVDF coating layer 151.

[0024] The specific function of this technical solution is: by setting the PVDF coating layer 151, it has the properties of low friction coefficient, strong wear resistance, good weather resistance, radiation resistance, ozone resistance, high temperature resistance and low temperature resistance; by setting the silicon carbide wear-resistant coating layer 152, it has the properties of low friction coefficient, wear resistance and high temperature resistance.

[0025] Working principle: By providing the first sealing ring 11 and the second sealing ring 12, a sealing effect can be achieved. In the working process, the coolant is introduced through the coolant inlet pipe 6, so that the coolant contacts the piston 4, which can cool the surface of the piston 4, thereby preventing the surface temperature of the piston 4 from being too high, which may cause damage to the first sealing ring 11 and the second sealing ring 12, thereby achieving a good sealing effect.

[0026] By setting the PVDF coating layer 151, it has the properties of low friction coefficient, strong wear resistance, good weather resistance, radiation resistance, ozone resistance, high temperature resistance and low temperature resistance. By setting the silicon carbide wear-resistant coating layer 152, it has the properties of low friction coefficient, wear resistance and high temperature resistance.

[0027] It is important to note that the construction and arrangement of the present application, as shown in various exemplary embodiments, are illustrative only. Although only a few embodiments are described in detail in this disclosure, those reading this disclosure will readily appreciate that numerous modifications are possible (e.g., variations in the size, dimensions, structure, shape, and proportions of various components, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without materially departing from the novel teachings and advantages of the subject matter described herein. For example, an element shown as integrally formed may be constructed from multiple parts or elements, the position of an element may be inverted or otherwise altered, and the nature, number, or position of discrete elements may be modified or changed. Therefore, all such modifications are intended to be encompassed within the scope of this invention. The order or sequence of any process or method steps may be altered or reordered according to alternative embodiments. In the claims, any "means-plus-function" clause is intended to cover structures described herein that perform the function described, and not only structural equivalence but also equivalent structures. Without departing from the scope of the present invention, other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0028] Additionally, in order to provide a concise description of example embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit the scope of protection of the utility model. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the utility model.

Claims

1. A dynamic sealing device for a brake disc brake housing, comprising a caliper body (1), characterized in that: Hollow blocks (2) are sleeved on both sides of the caliper body (1), the bottom of the hollow block (2) is connected to a hydraulic oil pipeline (3), a piston (4) is inserted on one side of the hollow block (2), the front side of the top of the hollow block (2) is connected to a coolant inlet pipe (6), a feed hole (7) is provided on one side of the hollow block (2), a movable groove (10) is provided on the inner side of the hollow block (2), a first sealing ring (11) is fixedly connected to one side of the inner wall of the movable groove (10), a second sealing ring (12) is fixedly connected to the other side of the inner wall of the movable groove (10), a material guide hole (8) is provided on one side of the movable groove (10), a discharge hole (9) is provided on the other side of the hollow block (2), one side of the discharge hole (9) is connected to a coolant outlet pipe (14), and a brake pad (18) is fixedly connected to one side of the piston (4).

2. A dynamic sealing device for a brake disc brake housing according to claim 1, characterized in that: The surfaces of the first sealing ring (11) and the second sealing ring (12) are both provided with a functional layer (15), and the functional layer (15) comprises a PVDF coating layer (151) and a silicon carbide wear-resistant coating layer (152).

3. The dynamic sealing device for a brake disc brake housing according to claim 1, characterized in that: A prism (13) is inserted into one side of the piston (4), and one side of the prism (13) is fixedly connected to the hollow block (2).

4. The dynamic sealing device for a brake disc brake housing according to claim 1, characterized in that: The front and back sides of the clamp body (1) are both fixedly connected to a fixing seat (16), and a mounting hole (17) is provided on one side of the fixing seat (16).

5. The dynamic sealing device for a brake disc brake housing according to claim 1, characterized in that: One side of the piston (4) is fixedly connected to a spring (5), and one side of the spring (5) is fixedly connected to the hollow block (2).

6. The dynamic sealing device for a brake disc brake housing according to claim 2, characterized in that: The PVDF coating layer (151) is coated on the surfaces of the first sealing ring (11) and the second sealing ring (12), respectively, and the silicon carbide wear-resistant coating layer (152) is coated on one side of the PVDF coating layer (151).

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