Pin tumbler pressurizing brake

Abstract

The invention relates to a pin tumbler pressurizing brake, belongs to the technical field of vehicle braking, and solves the problems that a pin tumbler pressurizing brake in the prior art cannot automatically and timely adjust a brake clearance, and the safe driving of a vehicle is influenced. The brake comprises a marble pressurizing mechanism, a friction pair assembly, a brake clearance adjusting mechanism and a braking force providing mechanism, the friction pair assembly, the brake clearance adjusting mechanism and the braking force providing mechanism are all installed on the marble pressurizing mechanism, and the braking force providing mechanism is used for providing braking force for braking of the brake. The brake clearance adjusting mechanism is connected with the brake force providing mechanism and used for automatically adjusting the brake clearance of the friction pair assembly. According to the method, the brake clearance is automatically and timely adjusted in the service brake process, the brake clearance is kept in the optimal state, and the safety of vehicle running is improved.

Description

Technical Field

[0001] The invention relates to the technical field of vehicle braking, and in particular to a marble pressure brake. Background Art

[0002] The marble pressure brake is a commonly used brake for tracked vehicles. It uses a marble pressure mechanism to convert and amplify the rotating operating force into axial movement between the friction discs of the friction pair, thereby pressing the friction discs to produce braking. During the use of the brake, the friction between the friction discs will inevitably cause wear, which will increase the brake clearance between the friction discs. The increase in the brake clearance will affect the performance and stability of the brake, bringing major problems to the safe driving of the vehicle. At present, the marble pressure brake generally adjusts the brake clearance by manually turning the knob to adjust the bolt, and cannot automatically and effectively adjust the brake clearance to the optimal state in a timely manner, thus affecting the safe driving of the vehicle. Summary of the invention

[0003] In view of the above analysis, the present invention aims to provide a marble pressure brake to solve the problem in the prior art that the marble pressure brake cannot automatically adjust the brake clearance in a timely manner, thus affecting the safe driving of the vehicle.

[0004] The purpose of the present invention is mainly achieved through the following technical solutions:

[0005] A ball pressurized brake comprises a ball pressurizing mechanism, a friction pair assembly, a brake clearance adjusting mechanism and a braking force providing mechanism. The friction pair assembly, the brake clearance adjusting mechanism and the braking force providing mechanism are all installed on the ball pressurizing mechanism. The braking force providing mechanism is used to provide braking force for the brake. The brake clearance adjusting mechanism is connected to the braking force providing mechanism and is used to automatically adjust the brake clearance of the friction pair assembly.

[0006] Furthermore, the marble pressurizing mechanism comprises a pressurizing support body, a rotating pressurizing plate and a movable pressurizing plate, and the rotating pressurizing plate and the movable pressurizing plate are mounted on the pressurizing support body.

[0007] Furthermore, the rotating pressure plate is rotatably connected to the pressure support body.

[0008] Furthermore, the movable pressure plate is slidably connected to the pressure support body.

[0009] Furthermore, the marble pressurizing mechanism further comprises a marble device, and the marble device is used to convert the rotation of the rotating pressurizing plate into movement of the moving pressurizing plate along the axis of the pressurizing support body.

[0010] Furthermore, the braking force providing mechanism includes a driving braking force assembly and a parking braking force assembly.

[0011] Furthermore, the parking brake power assembly can rotate synchronously with the brake clearance adjustment mechanism.

[0012] Furthermore, the service brake force assembly includes a service brake cylinder and a service brake operating arm.

[0013] Furthermore, the service brake cylinder is hinged to the service brake operating arm, and the service brake operating arm is fixedly connected to the rotating pressure plate.

[0014] Furthermore, the parking brake power assembly includes a parking brake cylinder, a parking brake operating disc and a parking energy storage spring.

[0015] The technical solution of the present invention can achieve at least one of the following effects:

[0016] (1) The present invention provides a ball pressurizing brake, including a ball pressurizing mechanism, a friction pair assembly, a brake clearance adjusting mechanism and a braking force providing mechanism. The friction pair assembly, the brake clearance adjusting mechanism and the braking force providing mechanism are all installed on the ball pressurizing mechanism. The braking force providing mechanism is used to provide braking force for the brake. The brake clearance adjusting mechanism is connected to the braking force providing mechanism and is used to automatically adjust the brake clearance of the friction pair assembly, thereby realizing automatic and timely adjustment of the brake clearance during driving braking, keeping the brake clearance in an optimal state, and improving the safety of vehicle driving.

[0017] (2) The present invention also provides a decoupling device, which includes a base plate, an outer shell, a slide plate and a force-limiting spring. The base plate is fixedly mounted on the limit plate and is located downstream of the upper limit long slot hole in the rotation direction when the brake clearance of the limit plate is adjusted; the outer shell is snap-fitted and mounted on the base plate, and the outer shell and the base plate together form a sliding cavity; one end of the sliding cavity is open and the other end is closed, forming an open end and a closed end respectively, and the open end of the sliding cavity faces the limit long slot hole; the slide plate and the force-limiting spring are both mounted in the sliding cavity, and the slide plate can slide along the length direction of the sliding cavity; one end of the force-limiting spring is fixedly connected to the closed end of the sliding cavity, and the other end is fixedly connected to one end of the slide plate, and the other end of the slide plate extends out of the sliding cavity to form an extended end, the extended end The end extends to a certain distance in the limiting long slot hole on the limiting plate; the limiting spring applies an elastic force to the slide plate, and the elastic force is greater than the friction force between the ratchet plate and the pressurized support body, but less than the elastic force of the parking energy storage spring in the braking force providing mechanism, so that the slide plate cannot slide toward the closed end of the sliding cavity during service braking, so that the brake clearance adjustment mechanism and the service brake operating arm are in a coupled state, thereby realizing automatic adjustment of the brake clearance during service braking, and the brake clearance always maintains the standard brake clearance; the slide plate can slide toward the closed end of the sliding cavity during parking braking, so that the brake clearance adjustment mechanism 3 and the parking brake operating disc are in a decoupled state, so that when the brake clearance is greater than the standard brake clearance, the brake can still achieve parking braking.

[0018] In the present invention, the above-mentioned technical solutions can also be combined with each other to achieve more preferred combination solutions. Other features and advantages of the present invention will be described in the subsequent description, and some advantages can become obvious from the description, or can be understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained through the contents particularly pointed out in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings are only for the purpose of illustrating particular embodiments and are not to be considered limiting of the present invention. Like reference symbols denote like components throughout the drawings.

[0020] Figure 1 This is one of the structural schematic diagrams of the brake according to an embodiment of the present invention;

[0021] Figure 2 This is a second structural schematic diagram of a brake according to an embodiment of the present invention;

[0022] Figure 3 It is a structural exploded diagram of a brake according to an embodiment of the present invention;

[0023] Figure 4 This is a schematic diagram of the structure of the ball pressurizing mechanism according to an embodiment of the present invention;

[0024] Figure 5 This is the second structural schematic diagram of the ball pressurizing mechanism according to an embodiment of the present invention;

[0025] Figure 6 It is a structural schematic diagram of a marble device according to an embodiment of the present invention;

[0026] Figure 7 for Figure 4 Middle A is a partial enlarged view;

[0027] Figure 8 is a cross-sectional view of a friction pair assembly according to an embodiment of the present invention;

[0028] Fig. 9 A schematic structural diagram of a brake clearance adjustment mechanism according to an embodiment of the present invention;

[0029] Fig.10 It is a structural exploded diagram of the brake clearance adjustment mechanism according to an embodiment of the present invention;

[0030] Fig.11 for Fig.10 Middle C is a partial enlarged view;

[0031] Fig.12 is a schematic structural diagram of a decoupling device according to an embodiment of the present invention;

[0032] Fig.13 It is a structural schematic diagram of a driving brake power assembly according to an embodiment of the present invention;

[0033] Fig.14 Schematic diagram of the structure of the parking brake power assembly according to an embodiment of the present invention.

[0034] Reference numerals:

[0035] 1-ball pressure mechanism; 11-pressure support body; 111-installation slot; 112-ratchet; 113-spring; 12-rotating pressure plate; 121-first ball slot; 13-moving pressure plate; 131-second ball slot; 14-first return spring; 15-ball; 2-friction pair assembly; 21-first friction plate; 22-second friction plate; 23-third friction plate; 24-second return spring; 25-fixed shell; 3-brake clearance adjustment mechanism; 31-ratchet Wheel disc; 311-internal gear; 32-limiting plate; 321-limiting long slot hole; 33-decoupling device; 331-bottom plate; 332-housing; 333-slide plate; 334-limiting spring; 4-braking force providing mechanism; 41-service braking force assembly; 411-service brake cylinder; 412-service brake operating arm; 42-parking brake force assembly; 421-parking brake cylinder; 422-parking brake operating disc; 4221-bump; 423-parking energy storage spring. DETAILED DESCRIPTION

[0036] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the present invention and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not used to limit the scope of the present invention.

[0037] Example 1

[0038] A specific embodiment of the present invention discloses a marble pressure brake, such as Figure 1 , Figure 2 and Figure 3 As shown, it includes a ball pressurizing mechanism 1, a friction pair assembly 2, a brake clearance adjusting mechanism 3 and a braking force providing mechanism 4, wherein the friction pair assembly 2, the brake clearance adjusting mechanism 3 and the brake force providing mechanism 4 are all installed on the ball pressurizing mechanism 1, and the brake force providing mechanism 4 is used to provide braking force for the brake, and the brake clearance adjusting mechanism 3 is connected with the brake force providing mechanism 4, and is used to automatically adjust the brake clearance of the friction pair assembly 2, so that the brake clearance of the friction pair assembly 2 is always kept at a standard brake clearance, even if the brake clearance of the brake is kept at an optimal state, thereby improving the safety of vehicle driving; compared with the technology of manually adjusting the brake clearance of the brake, the brake of this embodiment is provided with a brake clearance adjusting mechanism 3, and the brake clearance adjusting mechanism 3 is connected with the brake force providing mechanism 4, so that the brake clearance of the friction pair assembly 2 can be automatically and timely adjusted, so that the brake clearance of the friction pair assembly 2 is always kept at a standard brake clearance, even if the brake clearance of the brake is kept at an optimal state, thereby improving the safety of vehicle driving.

[0039] Preferably, if Figure 4 and Figure 5 As shown, the ball pressurizing mechanism 1 includes a pressurizing support body 11, a rotating pressurizing plate 12, a movable pressurizing plate 13, a first return spring 14 and a ball device. The pressurizing support body 11 is fixedly connected to an external device for supporting the ball pressurizing mechanism 1; the rotating pressurizing plate 12 and the movable pressurizing plate 13 are sequentially mounted on the pressurizing support body 11, the rotating pressurizing plate 12 is rotatably connected to the pressurizing support body 11 and rotates relative to the axis of the pressurizing support body 11; the movable pressurizing plate 13 is slidably connected to the pressurizing support body 11 and rotates relative to the axis of the pressurizing support body 11. The axis of the pressurizing support body 11 moves; the marble device is arranged on the opposite surfaces of the rotating pressure plate 12 and the movable pressure plate 13, and the marble device is used to convert the rotation of the rotating pressure plate 12 into movement of the movable pressure plate 13 along the axis of the pressurizing support body 11; one end of the first return spring 14 is connected to the pressurizing support body 11, and the other end is connected to the rotating pressure plate 12, and the first return spring 14 is used to apply a pulling force to the rotating pressure plate 12, so that the rotating pressure plate 12 maintains the reset potential energy, and drives the rotating pressure plate 12 to rotate when the brake is released.

[0040] Preferably, if Figure 6 As shown, the ball device includes a first ball groove 121, a second ball groove 131 and a ball 15, wherein the first ball groove 121 and the second ball groove 131 are respectively arranged on the opposite disk surfaces of the rotating pressure plate 12 and the moving pressure plate 13, and the first ball groove 121 and the second ball groove 131 are arranged opposite to each other and form a groove cavity, wherein the ball 15 is accommodated in the groove cavity and can roll freely in the groove cavity; the first ball groove 121 and the second ball groove 131 are both grooves with gradually changing depths, and the depth of the first ball groove 121 increases along the rotation direction (i.e., the rotation direction) of the rotating pressure plate 12 when braking. Figure 7 The depth of the second ball groove 131 changes from deep to shallow along the rotation direction of the rotating pressure plate 12 when braking, so that the groove cavity surrounded by the first ball groove 121 and the second ball groove 131 is a groove cavity with a gradual depth change. By controlling the rotation of the rotating pressure plate 12, the position change of the ball 15 in the groove cavity with a gradual depth change is controlled, thereby controlling the distance that the movable pressure plate 13 moves along the axis of the pressure support body 11, and then controlling the braking clearance of the friction pair assembly 2, thereby realizing the braking, releasing and adjustment of the braking clearance of the brake.

[0041] Preferably, a plurality of the pin devices are provided, and the plurality of the pin devices are evenly distributed circumferentially on the opposite surfaces of the rotating pressure plate 12 and the movable pressure plate 13, so that when the rotation of the rotating pressure plate 12 is converted into the axial movement of the movable pressure plate 13, the movable pressure plate 13 is subjected to uniform force, thereby enhancing the stability of force transmission.

[0042] Preferably, if Figure 7 As shown, a plurality of mounting grooves 111 are evenly arranged along the circumference of the edge of the pressurizing support body 11 , and ratchets 112 and springs 113 are installed in the mounting grooves 111 .

[0043] Preferably, if Figure 8As shown, the friction pair assembly 2 includes a first friction disc 21, a second friction disc 22, a third friction disc 23, a second return spring 24 and a fixed shell 25. The first friction disc 21, the second friction disc 22 and the third friction disc 23 are sequentially installed in the fixed shell 25, and the third friction disc 23 is fixedly installed on the fixed shell 25. The first friction disc 21 and the second friction disc 22 can move along the axis of the fixed shell 25; there is a gap between the second friction disc 22 and the first friction disc 21 and the third friction disc 23, and the gap is called a brake gap; the brake is assembled and its brake gap is debugged so that the brake gap is at the most suitable distance. At this time, the brake gap of the brake is called a standard brake gap; the second return spring 2 4 is arranged between the first friction disc 21 and the third friction disc 23, and its two ends are fixedly connected to the first friction disc 21 and the third friction disc 23 respectively. The second return spring 24 is used to apply elastic force to the first friction disc 21 to keep the first friction disc 21 in the return potential energy. When the brake is released, the second return spring 24 can drive the first friction disc 21 to return to the initial position, that is, the moving pressurizing disc 13 in the ball pressurizing mechanism 1 returns to the initial position, and the brake clearance of the brake is restored to the standard brake clearance at this time. The fixed shell 25 is fixedly installed on the pressurizing support body 11, and is used to protect the structure arranged therein, and can prevent foreign matter from entering the interior of the friction pair assembly 2 to avoid damage to the friction pair assembly 2.

[0044] Preferably, the first friction disc 21 is fixedly mounted on the mobile pressure disc 13 and can move along the axis of the pressure support body 11 with the mobile pressure disc 13; the second friction disc 22 is sleeved on the external wheel axle and connected to the wheel axle through a rectangular spline, and the rectangular spline connection enables the second friction disc 22 to rotate along with the wheel axle and also to slide axially relative to the wheel axle; the third friction disc 23 is fixedly mounted in the fixed shell 25; when braking, the first friction disc 21 moves along the axis of the wheel axle toward the third friction disc 23 under the push of the mobile pressure disc 13, so that the braking gap becomes smaller until the second friction disc 22 is The wiping plate 22 contacts with the first friction plate 21 and the third friction plate 23, so that the second friction plate 22 generates an interactive friction force with the first friction plate 21 and the third friction plate 23, so that the friction pair assembly 2 generates a braking torque to realize the braking of the brake; when the brake is released, the first friction plate 21 moves in the opposite direction under the elastic force of the second return spring 24 and returns to the initial position. At this time, the braking clearance of the brake is restored to the standard braking clearance, and the brake is released; at the same time, under the elastic force of the second return spring 24, the movable pressure plate 13 in the ball pressure mechanism 1 also returns to the initial position.

[0045] Preferably, a plurality of friction plates are provided on the relative surfaces of the first friction plate 21 , the second friction plate 22 and the third friction plate 23 . The friction plates are fan-shaped friction plates with gaps between the friction plates to facilitate heat dissipation.

[0046] Preferably, if Fig. 9 As shown, the brake clearance adjustment mechanism 3 includes a ratchet disc 31, a limit disc 32 and a decoupling device 33, the ratchet disc 31 is sleeved on the pressurized support body 11 of the marble pressurizing mechanism 1, and is rotatably connected to the pressurized support body 11; the limit disc 32 is fixedly mounted on the ratchet disc 31, and is used to drive the ratchet disc 31 to rotate when the brake clearance is adjusted; the decoupling device 33 is fixedly mounted on the limit disc 32, and is used to adjust the coupling state of the brake clearance adjustment mechanism 3 and the rotating pressurizing disc 12, that is, during the service braking process, the brake clearance adjustment mechanism 3 and the rotating pressurizing disc 12 are in a coupled state, so that the brake clearance adjustment mechanism 3 rotates synchronously with the rotating pressurizing disc 12, that is, the brake clearance adjustment mechanism 3 can rotate relative to the pressurizing support body 11, so as to realize the synchronous adjustment of the brake clearance during the service braking of the brake, so that the brake clearance is always at the standard brake clearance; during the parking braking process, the brake The clearance adjustment mechanism 3 and the rotating pressure plate 12 are in a decoupled state, so that the brake clearance adjustment mechanism 3 rotates relative to the rotating pressure plate 12, that is, the brake clearance adjustment mechanism 3 is fixed relative to the pressure support body 11, so that the brake can be parked regardless of the size of its brake clearance; compared with the prior art, this embodiment can adjust the brake clearance while achieving service braking by setting a decoupling device 33, so that the brake clearance of the brake always maintains a standard brake clearance, that is, the brake can automatically adjust the brake clearance in a timely manner to keep the brake clearance in an optimal state, thereby improving the safety of vehicle driving; since the brake clearance adjustment mechanism 3 is provided with a decoupling device 33, the brake clearance adjustment mechanism 3 can be rotated relative to the rotating pressure plate 12 during the parking braking process of the brake, so that the brake can be parked regardless of the size of its brake clearance, further improving the safety of vehicle driving.

[0047] Preferably, if Fig.10 and Fig.11 As shown, the ratchet disc 31 is provided with an internal gear 311, and the internal gear 311 and the ratchet teeth 112 and the spring piece 113 in the pressurized support body 11 form a ratchet mechanism, and the ratchet mechanism is used to limit the ratchet disc 31 from rotating in the opposite direction after the brake adjusts the braking clearance, thereby limiting the limit disc 32 at this position, and using this position as the new initial position of the limit disc 32.

[0048] Preferably, a limiting long slot hole 321 is provided on the limiting disk 32 . The limiting long slot hole 321 is a fan-shaped structure and extends along the circumferential direction of the limiting disk 32 . The limiting long slot hole 321 is used to limit the braking stroke of the braking force providing mechanism 4 .

[0049] Preferably, if Fig.12 As shown, the decoupling device 33 includes a bottom plate 331, a shell 332, a slide plate 333 and a force-limiting spring 334. The bottom plate 331 is fixedly mounted on the limit plate 32 and is located downstream of the upper limit long slot hole 321 in the rotation direction when the brake clearance of the limit plate 32 is adjusted; the shell 332 is snap-fitted and mounted on the bottom plate 331, and the shell 332 and the bottom plate 331 together form a sliding cavity; one end of the sliding cavity is open and the other end is closed, forming an open end and a closed end respectively, and the open end of the sliding cavity faces the limit long slot hole 321; the slide plate 333 and the force-limiting spring 334 are both mounted in the sliding cavity, and the slide plate 333 can slide along the length direction of the sliding cavity; one end of the force-limiting spring 334 is fixedly connected to the closed end of the sliding cavity, and the other end is fixedly connected to one end of the slide plate 333, and the other end of the slide plate 333 extends out of the sliding cavity to form an extended The end, the protruding end extends to a certain distance in the limiting long slot hole 321 on the limiting plate 32; the limiting spring 334 applies an elastic force to the slide plate 333, and the elastic force is greater than the friction force between the ratchet plate 31 and the pressurized support body 11, but less than the elastic force of the parking energy storage spring 423 in the braking force providing mechanism 4, so that the slide plate 333 cannot slide toward the closed end of the sliding cavity during service braking, so that the brake clearance adjustment mechanism 3 and the service brake operating arm 412 are in a coupled state, thereby realizing automatic adjustment of the brake clearance during service braking, and the brake clearance always maintains the standard brake clearance; the slide plate 333 can slide toward the closed end of the sliding cavity during parking braking, so that the brake clearance adjustment mechanism 3 and the parking brake operating plate 422 are in a decoupled state, so that when the brake clearance is greater than the standard brake clearance, the brake can still achieve parking braking.

[0050] Preferably, the braking force providing mechanism 4 includes a driving braking force assembly 41 and a parking braking force assembly 42, the driving braking force assembly 41 is used to provide braking force for the driving braking of the brake, and is also used to provide braking force for adjusting the braking clearance of the brake; the parking braking force assembly 42 is integrated with the brake clearance adjustment mechanism 3 and can rotate synchronously with the brake clearance adjustment mechanism 3, and the parking braking force assembly 42 is used to provide braking force for the parking braking of the brake; the parking braking force assembly 42 is integrated with the brake clearance adjustment mechanism 3 and can rotate synchronously with the brake clearance adjustment mechanism 3, which can reduce the activity space of the parking braking force assembly 42 and reduce the volume of the brake.

[0051] Preferably, if Fig.13 As shown, the service brake force assembly 41 includes a service brake cylinder 411 and a service brake operating arm 412, the service brake cylinder 411 is rotatably connected to an external device, and the end of its push rod is hinged to the service brake operating arm 412, and the service brake operating arm 412 passes through the limiting long slot hole 321 on the limiting plate 32 in the brake clearance adjustment mechanism 3 and is fixedly connected to the rotating pressure plate 12 in the ball pressure mechanism 1; the service brake operating arm 412 is driven to rotate by the push rod of the service brake cylinder 411 to provide service braking force for the brake and realize service braking; at the same time, it can also provide driving force for the brake clearance adjustment of the brake, so that the brake can automatically and timely adjust the brake clearance during service braking.

[0052] Preferably, there is a gap between the end face of the service brake operating arm 412 opposite to the extended end of the slide plate 333 and the end face of the extended end of the slide plate 333, and there is an angle α between the two end faces, and the angle α is set according to the standard brake clearance, that is, when the service brake cylinder 411 pushes the service brake operating arm 412 to drive the rotating pressure plate 12 in the ball pressure mechanism 1 to rotate by an angle α, the brake clearance in the friction pair assembly 2 is exactly zero.

[0053] Preferably, if Fig.14As shown, the parking brake force assembly 42 includes a parking brake cylinder 421, a parking brake operating disc 422 and a parking energy storage spring 423. The parking brake cylinder 421 is rotatably mounted on the edge of the ratchet disc 31 in the brake clearance adjustment mechanism 3, and the end of its push rod is hinged to the parking brake operating disc 422; the parking brake operating disc 422 is rotatably mounted on the limit disc 32 in the brake clearance adjustment mechanism 3, and the parking brake operating disc 422 is provided with a protrusion 4221 extending toward its axis, and the protrusion 4221 contacts the service brake operating arm 412, and the service brake operating arm 412 can be driven to drive the rotating pressure plate 12 to rotate by extending or retracting the push rod of the parking brake cylinder 421, thereby providing the brake with parking brake force to achieve parking braking; one end of the parking energy storage spring 423 is fixedly connected to the edge of the ratchet disc 31, and the other end is fixedly connected to the parking brake operating disc 422 hinge, the parking energy storage spring 423 is always in a compressed state, so that the ratchet disc 31 and the parking brake operating disc 422 are always subjected to the elastic force of the parking energy storage spring 423, so that the brake keeps the position of the ratchet disc 31 unchanged during parking braking, and the parking brake operating disc 422 rotates relative to the ratchet disc 31 to achieve parking braking; in addition, if the braking clearance is greater than the standard braking clearance at this time, since the elastic force of the parking energy storage spring 423 is greater than the elastic force of the force limiting spring 334 in the decoupling device 33, under the continuous push of the parking brake cylinder 421, the service brake operating arm 412 will push the slide plate 333 to slide toward the closed end of the sliding cavity, so that the brake clearance adjustment mechanism 3 is in a decoupling state, so that when the braking clearance is greater than the standard braking clearance, the brake can still achieve parking braking; at least one parking energy storage spring 423 is set.

[0054] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by any technician familiar with the technical field within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention.

Claims

1. A marble pressure brake, characterized in that: The invention comprises a ball pressurizing mechanism (1), a friction pair assembly (2), a brake clearance adjusting mechanism (3) and a brake force providing mechanism (4); the friction pair assembly (2), the brake clearance adjusting mechanism (3) and the brake force providing mechanism (4) are all mounted on the ball pressurizing mechanism (1); the brake force providing mechanism (4) is used to provide a brake force for the brake; the brake clearance adjusting mechanism (3) is connected to the brake force providing mechanism (4) and is used to automatically adjust the brake clearance of the friction pair assembly (2).

2. A marble pressure brake according to claim 1, characterized in that: The ball pressurizing mechanism (1) comprises a pressurizing support body (11), a rotating pressurizing plate (12) and a movable pressurizing plate (13), wherein the rotating pressurizing plate (12) and the movable pressurizing plate (13) are mounted on the pressurizing support body (11).

3. A marble pressure brake according to claim 2, characterized in that: The rotating pressure plate (12) is rotatably connected to the pressure support body (11).

4. The marble pressure brake according to claim 3, characterized in that: The movable pressure plate (13) is slidably connected to the pressure support body (11).

5. The marble pressure brake according to claim 4, characterized in that: The marble pressurizing mechanism (1) further comprises a marble device, which is used to convert the rotation of the rotating pressurizing plate (12) into movement of the moving pressurizing plate (13) along the axis of the pressurizing support body (11).

6. The marble pressure brake according to claim 2, characterized in that: The braking force providing mechanism (4) comprises a driving braking force assembly (41) and a parking braking force assembly (42).

7. A marble pressure brake according to claim 6, characterized in that: The parking brake power assembly (42) can rotate synchronously with the brake clearance adjustment mechanism (3).

8. The marble pressure brake according to claim 7, characterized in that: The service brake force assembly (41) comprises a service brake cylinder (411) and a service brake operating arm (412).

9. A marble pressure brake according to claim 8, characterized in that: The service brake cylinder (411) is hinged to the service brake operating arm (412), and the service brake operating arm (412) is fixedly connected to the rotating pressure plate (12).

10. A marble pressure brake according to claim 9, characterized in that: The parking brake power assembly (42) comprises a parking brake cylinder (421), a parking brake operating disc (422) and a parking energy storage spring (423).

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