Mechanical disc brake device

Abstract

The utility model discloses a mechanical disc brake device, belongs to the technical field of brake devices, and aims to solve the problems that a hydraulic brake is easy to damage and has fire hazards, and an existing mechanical disc brake is complex in structure and high in cost. The first shell and the second shell are connected through a connecting piece; a first cavity is formed in the first shell; a second cavity is formed in the second shell; the first braking mechanism is fixed in the first cavity, the second braking mechanism moves in the second cavity, and the connecting piece penetrates through the two mechanisms and is sleeved with the first spring in a compressed state; the connecting mechanism and the second shell are integrally formed (a connecting cavity communicated with the second cavity is formed); the brake control mechanism comprises a driving screw rod (in threaded connection with the connecting cavity), a rocker arm (driving the screw rod to rotate) and an elastic piece (assisting the rocker arm in resetting). The connecting mechanism is provided with an internal thread connecting sleeve and can be used for loading wheels through a bracket. The device is simple in structure and low in cost, the rocker arm drives the screw to push the second brake mechanism to be matched with the first mechanism to clamp the brake disc for braking, the mode is simple and convenient, and assembling and disassembling are easy.

Description

Technical Field

[0001] This utility model relates to the field of braking device technology, specifically to a mechanical disc brake device. Background Technology

[0002] Most motor vehicles use hydraulic brakes, but hydraulic brake components are prone to damage and are complex to maintain. They also require brake fluid as a working medium, posing a fire hazard during operation. Some vehicles use mechanical brakes, but existing mechanical disc brake devices have a complex structure and require too many parts for assembly, which prevents the cost of mechanical disc brake devices from being reduced. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a mechanical disc brake device.

[0004] The technical solution adopted in this utility model is as follows:

[0005] A mechanical disc brake device includes: a first housing, wherein the first housing has a first cavity;

[0006] A second housing, having a second cavity within it, is connected to the first housing via a connector; a first braking mechanism, fixedly installed within the first cavity, with the connector passing through it; a second braking mechanism, movably installed within the second cavity, with the connector passing through it; a connecting mechanism, integrally formed with the second housing, having a connecting chamber extending through it and communicating with the second cavity; and a brake control mechanism, comprising: a drive screw threadedly connected to the connecting chamber; a rocker arm fixedly connected to the end of the drive screw away from the connecting mechanism, the rocker arm driving the drive screw to rotate; and an elastic element connected to the rocker arm and the connecting mechanism assembly, the elastic element driving the rocker arm to reset.

[0007] Furthermore, the first housing and the second housing are provided with corresponding screw holes, and the connector is threaded into the screw holes to connect the first housing and the second housing.

[0008] Furthermore, the first braking mechanism includes a first brake pad, which includes: a first fixing plate fixed in the first cavity, the first fixing plate having symmetrically opened first through holes through which the connecting member passes; and a first friction block fixedly bonded to the first fixing plate.

[0009] Furthermore, the second braking mechanism includes a second brake pad, the second brake pad including: a second fixing plate, the second fixing plate being located in the second cavity, the second fixing plate having symmetrically opened second through holes, the connecting member passing through the second through holes; and a second friction block, the second friction block being fixedly bonded to the second fixing plate.

[0010] Furthermore, a first spring is fitted onto the connector, the first spring being located between the first fixing plate and the second fixing plate, and the first spring is always in a compressed state.

[0011] Furthermore, the connecting mechanism has a cylindrical structure, the connecting cavity is provided with an internal thread adapted to the driving screw, and the outer wall of the connecting mechanism away from the second housing end is provided with connecting grooves at equal angles with the center of the circle as the center.

[0012] Furthermore, the drive screw includes a threaded portion, a drive portion, and a connecting portion. The threaded portion, the drive portion, and the connecting portion are integrally formed. The threaded portion is threadedly connected to the connecting cavity. The drive portion and the connecting portion are located at both ends of the threaded portion. The drive portion is located near the second braking mechanism. The connecting portion is fixedly connected to the rocker arm.

[0013] Furthermore, the elastic element is a torsion spring, which includes a spring body, with a first spring arm and a second spring arm extending outward from opposite ends of the spring body. The spring body is fitted onto the connecting part, the first spring arm is connected in the connecting groove, and the second spring arm is clamped on the rocker arm.

[0014] Furthermore, the connecting mechanism has annular grooves at both ends, and a sealing ring is installed in the annular groove, through which the drive screw passes.

[0015] Furthermore, the connecting mechanism is integrally formed with an internally threaded connecting sleeve, which is used to install a bracket, and is then installed on the wheel via the bracket.

[0016] The beneficial effects of this utility model are:

[0017] This utility model mechanical disc brake device has a simple overall structure and low production cost. It drives the drive screw to move through the rocker arm, thereby driving the second braking mechanism and the first braking structure to cooperate in clamping and braking the brake disc. The braking method is simple. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure connecting the mechanical disc brake device, brake disc, and bracket in an embodiment of the present utility model.

[0019] Figure 2This is a schematic diagram of the connection between the mechanical disc brake device, brake disc, and bracket according to an embodiment of the present invention.

[0020] Figure 3 This is a schematic diagram of the overall structure of a mechanical disc brake device according to an embodiment of the present invention;

[0021] Figure 4 This is a plan view of a mechanical disc brake device according to an embodiment of the present invention;

[0022] Figure 5 This is a cross-sectional view of a mechanical disc brake device according to an embodiment of the present invention;

[0023] Figure 6 This is an exploded view of a mechanical disc brake device according to an embodiment of the present invention;

[0024] Figure 7 This is a schematic diagram of the overall structure of the drive screw according to one embodiment of the present invention;

[0025] Figure 8 This is a schematic diagram of the overall structure of the elastic element according to an embodiment of the present invention;

[0026] Figure 9 This is a schematic diagram showing the connection between the mechanical disc brake system and the brake disc.

[0027] Figure 10 Diagram showing the connection between the mechanical disc brake system, brake disc, and wheel hub. Figure 1 ;

[0028] Figure 11 Diagram showing the connection between the mechanical disc brake system, brake disc, and wheel hub. Figure 2 .

[0029] Explanation of reference numerals in the attached figures:

[0030] 1-First housing; 2-First cavity; 3-Second housing; 4-Second cavity; 5-Connector; 6-First braking mechanism; 7-Second braking mechanism; 8-Connecting mechanism; 9-Brake control mechanism; 10-Drive screw; 11-Rock arm; 12-Elastic element; 13-Screw hole; 14-First fixing plate; 15-First through hole; 16-First friction block; 17-Second fixing plate; 18-Second through hole; 19-Second friction block; 20-First spring; 21-Connecting groove; 22-Threaded part; 23-Drive part; 24-Connecting part; 25-Spring body; 26-First spring arm; 27-Second spring arm; 28-Sealing ring; 29-Internal threaded connecting sleeve; 30-Brake disc; 31-Bracket; 32-Wheel hub bearing; 33-Bolt; 34-Wheel hub Detailed Implementation

[0031] 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.

[0032] like Figures 1-8 As shown, a mechanical disc brake device according to an embodiment of the present invention may include a first housing 1, a second housing 3, a first braking mechanism 6, a second braking mechanism 7, a connecting mechanism 8, and a brake control mechanism 9.

[0033] Specifically, the first housing 1 has a first cavity 2; the second housing 3 has a second cavity 4, and the first housing 1 and the second housing 3 are connected by a connector 5; the first braking mechanism 6 is fixedly installed in the first cavity 2, and the connector 5 passes through the first braking mechanism 6; the second braking mechanism 7 is movably installed in the second cavity 4, and the connector 5 passes through the second braking mechanism 7; the connecting mechanism 8 is integrally formed with the second housing 3, and the connecting mechanism 8 has a connecting chamber that runs through the front and rear, and the connecting chamber communicates with the second cavity 4; the brake control mechanism 9 may include a drive screw 10, a rocker arm 11, and an elastic element 12, wherein the drive screw 10 is threadedly connected to the connecting chamber; the rocker arm 11 is fixedly connected to the end of the drive screw 10 away from the connecting mechanism 8, and the rocker arm 11 is used to drive the drive screw 10 to rotate; the elastic element 12 is connected to the rocker arm 11 and the connecting mechanism 8 assembly, and the elastic element 12 is used to drive the rocker arm 11 to reset.

[0034] In one embodiment of this utility model, such as Figure 6 As shown, the first housing 1 and the second housing 3 are provided with corresponding screw holes 13, and the connector 5 is threaded into the screw holes 13 to connect the first housing 1 and the second housing 3.

[0035] For example, the connector 5 uses bolts 33, which connect the first housing 1 and the second housing 3, allowing for assembly and disassembly via bolt connection. It should be understood that the brake disc 30 of the 34-wheel hub is located between the first housing 1 and the second housing 3, with the first braking mechanism 6 and the second braking mechanism 7 distributed on both sides of the brake disc, wherein the first braking mechanism 6 is closer to the brake disc 30 than the second braking mechanism 7. Figures 9-11As shown, a 32-wheel hub bearing is mounted on a 34-wheel hub, and a 30-brake disc is mounted on a 32-wheel hub bearing. For example, the 32-wheel hub bearing, the 34-wheel hub, and the 30-brake disc are fixedly connected by four 33-bolts, and the connection points of the four 33-bolts are distributed at equal angles with the center of the 34-wheel hub as the center.

[0036] In one embodiment of this utility model, such as Figure 6 As shown, the first braking mechanism 6 includes

[0037] The first brake pad includes a first fixing plate 14 and a first friction block 16. The first fixing plate 14 is fixed in the first cavity 2, and the first fixing plate 14 has symmetrically arranged first through holes 15, through which the connecting member 5 passes. The first friction block 16 is fixedly bonded to the first fixing plate 14. The second braking mechanism 7 includes a second brake pad, which includes a second fixing plate 17 and a second friction block 19. The second fixing plate 17 is located in the second cavity 4, and the second fixing plate 17 has symmetrically arranged second through holes 18, through which the connecting member 5 passes. The second friction block 19 is fixedly bonded to the second fixing plate 17.

[0038] The first friction block 16 and the second friction block 19 are made of rubber. During the braking process, the second friction block 19 and the first friction block 16 are in close contact with the brake disc to perform braking.

[0039] In one embodiment of this utility model, such as Figure 5 and Figure 6 As shown, a first spring 20 is fitted on the connector 5. The first spring 20 is located between the first fixing plate 14 and the second fixing plate 17. The first spring 20 is always in a compressed state.

[0040] In this embodiment of the utility model, by setting a first spring 20 and ensuring that the first spring 20 is always in a compressed state, the second braking mechanism 7 can move away from the brake disc 30 when it is not braking, and there is a certain gap between the second braking mechanism 7 and the brake disc 30.

[0041] In one embodiment of this utility model, such as Figure 6 As shown, the connecting mechanism 8 has a cylindrical structure, and the connecting cavity is provided with an internal thread that is compatible with the driving screw 10. The outer wall of the connecting mechanism 8 away from the second housing 3 is provided with a connecting groove 21 at an equal angle with the center of the circle.

[0042] In one embodiment of this utility model, such as Figure 6 and Figure 7As shown, the drive screw 10 includes a threaded portion 22, a drive portion 23, and a connecting portion 24. The threaded portion 22, the drive portion 23, and the connecting portion 24 are integrally formed. The threaded portion 22 is threadedly connected to the connecting cavity. The drive portion 23 and the connecting portion 24 are located at both ends of the threaded portion 22. The drive portion 23 is located near the second braking mechanism 7. The connecting portion 24 is fixedly connected to the rocker arm 11.

[0043] In one embodiment of this utility model, such as Figure 3 , Figure 6 and Figure 8 As shown, the elastic element 12 is a torsion spring, which includes a spring body 25. The opposite ends of the spring body 25 extend outward to form a first spring arm 26 and a second spring arm 27. The spring body 25 is fitted onto the connecting part 24. The first spring arm 26 is connected in the connecting groove 21, and the second spring arm 27 is clamped on the rocker arm 11.

[0044] The first spring arm 26 is in a vertical position, and the second spring arm 27 is in an L-shaped position. Together with the spring body 25, they form a U-shape and are clamped onto the rocker arm 11.

[0045] When braking is applied, the rocker arm 11 drives the drive screw 10 to rotate. The drive part 23 of the drive screw 10 moves towards the second braking mechanism 7 and pushes the second braking mechanism 7 closer to the brake disc 30, thereby causing the second friction block 19 and the first friction block 16 to clamp the brake disc 30 for braking. When the control of the rocker arm 11 is released, the elastic element 12 drives the rocker arm 11 to reverse and reset to the initial state.

[0046] In one embodiment of this utility model, such as Figure 6 As shown, the connecting mechanism 8 has annular grooves at both ends, and a sealing ring 28 is installed in the annular groove. The driving screw 10 passes through the sealing ring 28.

[0047] In one embodiment of this utility model, such as Figure 1 and Figure 6 As shown, the connecting mechanism 8 is integrally formed with an internally threaded connecting sleeve 29, which is used to install the bracket 31, and is mounted on the wheel hub 34 via the bracket 31. Specifically, the bracket 31 is connected to the internally threaded sleeve via a bolt 33, and a buffer pad is also installed between the bolt 33 and the internally threaded sleeve.

[0048] The mechanical disc brake device according to the embodiment of this utility model has a simple overall structure and low production cost. The rocker arm 11 drives the drive screw 10 to move, thereby driving the second braking mechanism 7 and the first braking structure to cooperate to achieve clamping and braking of the 30 brake disc. The braking method is simple.

[0049] In the description of this specification, references are made to the terms "one embodiment," "some embodiments," and "example."

[0050] The terms "specific example" or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0051] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A mechanical disc brake device, characterized in that, include: A first housing, wherein a first cavity is provided inside the first housing; The second housing has a second cavity inside it, and the first housing and the second housing are connected by a connector. A first braking mechanism is fixedly installed in the first cavity, and the connecting member passes through the first braking mechanism; The second braking mechanism is movably installed in the second cavity, and the connecting member passes through the second braking mechanism; A connecting mechanism is integrally formed with the second housing, and a connecting chamber is provided through the front and rear of the connecting mechanism, which is connected to the second cavity; and Brake control mechanism, the brake control mechanism comprising: A drive screw, which is threadedly connected to the connecting chamber; A rocker arm, fixedly connected to the end of the drive screw away from the connecting mechanism, the rocker arm being used to drive the drive screw to rotate; and An elastic element is connected to the rocker arm and the connecting mechanism assembly, and the elastic element is used to drive the rocker arm to reset.

2. The mechanical disc brake device according to claim 1, characterized in that, The first housing and the second housing are provided with corresponding screw holes, and the connector is threaded into the screw holes to connect the first housing and the second housing.

3. The mechanical disc brake device according to claim 2, characterized in that, The first braking mechanism includes a first brake pad, the first brake pad comprising: A first fixing plate is fixed inside the first cavity. The first fixing plate has symmetrical first through holes, and the connecting member passes through the first through holes. The first friction block is fixedly bonded to the first fixing plate.

4. The mechanical disc brake device according to claim 3, characterized in that, The second braking mechanism includes a second brake pad, the second brake pad comprising: The second fixing plate is located inside the second cavity. The second fixing plate has symmetrically opened second through holes, and the connector passes through the second through holes. The second friction block is fixedly bonded to the second fixing plate.

5. The mechanical disc brake device according to claim 4, characterized in that, A first spring is fitted onto the connector. The first spring is located between the first fixing plate and the second fixing plate, and the first spring is always in a compressed state.

6. The mechanical disc brake device according to claim 5, characterized in that, The connecting mechanism has a cylindrical structure, and the connecting cavity is provided with an internal thread adapted to the driving screw. The outer wall of the connecting mechanism away from the second housing end is provided with connecting grooves at equal angles with the center of the circle as the center.

7. The mechanical disc brake device according to claim 6, characterized in that, The drive screw includes a threaded portion, a drive portion, and a connecting portion. The threaded portion, the drive portion, and the connecting portion are integrally formed. The threaded portion is threadedly connected to the connecting cavity. The drive portion and the connecting portion are located at both ends of the threaded portion. The drive portion is located near the second braking mechanism. The connecting portion is fixedly connected to the rocker arm.

8. The mechanical disc brake device according to claim 7, characterized in that, The elastic element is a torsion spring, which includes a spring body. The opposite ends of the spring body extend outward to form a first spring arm and a second spring arm. The spring body is fitted onto the connecting part. The first spring arm is connected in the connecting groove, and the second spring arm is clamped on the rocker arm.

9. The mechanical disc brake device according to claim 8, characterized in that, The connecting mechanism has annular grooves at both ends, and a sealing ring is installed in the annular groove. The drive screw passes through the sealing ring.

10. The mechanical disc brake device according to claim 9, characterized in that, The connecting mechanism is integrally formed with an internally threaded connecting sleeve, which is used to install a bracket, and is then installed on the wheel via the bracket.

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