CN218882852U

CN218882852U - Eccentric wear prevention device for brake block of disc brake actuating mechanism

Info

Publication number: CN218882852U
Application number: CN202320168423.9U
Authority: CN
Inventors: 高兴海; 周永霞; 高文刚
Original assignee: Jinan Dejia Petroleum Equipment Co ltd
Current assignee: Jinan Dejia Petroleum Equipment Co ltd
Priority date: 2023-02-09
Filing date: 2023-02-09
Publication date: 2023-04-18
Anticipated expiration: 2033-02-09

Abstract

The utility model relates to a dish actuating mechanism brake block eccentric wear prevention device of stopping, dish actuating mechanism brake block eccentric wear prevention device of stopping includes: the brake disc is fixed on the wheel; the brake caliper is fixed on a frame, a brake pad is movably mounted in the brake caliper, and an oil storage box is fixed in the brake caliper; the brake pad is fixedly arranged in the brake caliper, a through groove is formed in the oil guide pipe, a first piston fixedly connected with the brake pad is movably arranged in the oil guide pipe, an intermittent transmission mechanism connected with the first piston is arranged in the brake caliper, and the intermittent transmission mechanism can move when the oil guide pipe conveys brake oil and drives the first piston to move; and the hydraulic pumping mechanism is arranged in the brake caliper and is connected with the oil storage box and the oil guide pipe through a guide pipe, and an elastic assembly connected with the hydraulic pumping mechanism and the intermittent transmission mechanism is further arranged in the brake caliper.

Description

Eccentric wear prevention device for brake block of disc brake actuating mechanism

Technical Field

The utility model relates to a brake field specifically is a dish actuating mechanism brake block eccentric wear prevention device of stopping.

Background

The disc brake is a disc brake, also called disc brake, and is named after the shape of the disc brake as the name implies. It is controlled by hydraulic pressure, and its main components include brake disk, branch pump, brake caliper and oil pipe.

Along with the continuous use of disc brake, the problem of eccentric wear can appear, eccentric wear mainly has following reason to lead to, first material for brake disc and brake block leads to, the second is often braking, the unbalanced stress of left and right wheels leads to, the third leads to for the brake block returns unusually, for the third point, the brake block provides piston pressure through the brake fluid when mainly, in order to pass through piston drive brake block motion, along with the increase of the number of times of braking, frictional force between piston and the oil pipe will increase gradually, lead to the unable initial position that resets of piston.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a dish actuating mechanism brake block eccentric wear prevention device of stopping to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a dish actuating mechanism brake block eccentric wear prevention device of stopping, dish actuating mechanism brake block eccentric wear prevention device of stopping includes:

the brake disc is fixed on the wheel;

the brake caliper is fixed on the frame, brake pads which are symmetrically arranged are movably mounted in the brake caliper, and oil storage boxes for storing lubricating oil are fixed in the brake caliper;

the brake caliper is characterized by comprising an oil guide pipe, a brake pad, an intermittent transmission mechanism and a brake pad, wherein the oil guide pipe is fixedly arranged in the brake caliper, a through groove is formed in the oil guide pipe, a first piston fixedly connected with the brake pad is movably arranged in the oil guide pipe, the brake caliper is internally provided with the intermittent transmission mechanism connected with the first piston, and the intermittent transmission mechanism can move when the oil guide pipe conveys brake oil and drives the first piston to move;

the hydraulic pump mechanism is arranged in the brake caliper and is connected with the oil storage box and the oil guide pipe through a guide pipe, an elastic assembly connected with the hydraulic pump mechanism and the intermittent transmission mechanism is further arranged in the brake caliper, and the hydraulic pump mechanism can drive the hydraulic pump mechanism to move through the elastic assembly so as to convey lubricating oil in the oil storage box into the oil guide pipe through the guide pipe.

As a further aspect of the present invention: the intermittent transmission mechanism comprises a ratchet which is fixedly installed on the first piston and penetrates through the through groove, a rotating rod which is rotatably installed in the brake caliper, and a ratchet which is fixedly installed on the rotating rod and meshed with the ratchet, a guide assembly connected with the rotating rod is arranged in the brake caliper, and the guide assembly is connected with the elastic assembly.

As a further aspect of the present invention: the guiding assembly comprises guiding rods which are fixedly installed in the brake caliper and symmetrically arranged, guiding sleeves which are movably installed on the guiding rods, and movable plates which are fixedly installed on the guiding sleeves, wherein a rotating disc is fixed on the rotating rod, bulges are fixed on the rotating disc, sliding grooves which are clamped with the bulges are formed in the movable plates, and the movable plates are connected with the elastic assembly.

As a further aspect of the present invention: the liquid pumping mechanism comprises a piston cylinder fixedly installed in the brake caliper, a second piston movably installed in the piston cylinder, and a movable rod fixedly installed on the second piston, a reset assembly connected with the movable rod is arranged in the brake caliper, the movable rod is connected with the elastic assembly, and the piston cylinder is connected with the guide pipe.

As a further aspect of the present invention: the reset assembly comprises a limiting sleeve fixedly mounted on the piston cylinder, a clamping groove formed in the limiting sleeve, and a limiting ring fixedly mounted on the movable rod and clamped with the clamping groove, wherein a spring abutted against the limiting ring is sleeved on the limiting sleeve, and the limiting sleeve is sleeved on the movable rod.

As the utility model discloses further scheme again: the elastic component comprises a fixed sleeve fixedly mounted on the movable rod, a limiting rod is movably mounted in the fixed sleeve, a second spring abutted against the limiting rod is fixedly arranged in the fixed sleeve, a straight groove is formed in the fixed sleeve, a limiting block clamped with the straight groove is fixedly arranged on the limiting rod, and the limiting rod is matched with the movable plate.

Compared with the prior art, the beneficial effects of the utility model are that: this application can guarantee that the motion of a piston can not receive the influence in carrying lubricating oil to a piston automatically according to the brake number of times, when a piston motion, drives the motion of intermittent type drive mechanism to through the motion of elastic component drive pump liquid mechanism, when intermittent type drive mechanism and elastic component separation, pump liquid mechanism can carry the lubricating oil in the oil storage box to a piston in through the pipe.

Drawings

Fig. 1 is a schematic structural view of an embodiment of an eccentric wear prevention device for a brake block of a disc brake actuator.

Fig. 2 is a schematic view of a partial half-section structure of an anti-eccentric device for a brake block of a disc brake actuator.

FIG. 3 is a schematic diagram of the internal structure of a brake caliper in an embodiment of an anti-eccentric device for a brake block of a disc brake actuator.

FIG. 4 is a schematic diagram of a connection relationship between a part of the fluid pumping mechanism and the elastic component in an embodiment of the eccentric wear prevention device for the brake block of the disc brake actuator.

Fig. 5 is an exploded view of a part of the fluid pumping mechanism and the elastic component in an embodiment of the eccentric wear prevention device for the brake block of the disc brake actuator.

Fig. 6 is an explosion structure diagram of an intermittent transmission mechanism in an embodiment of the eccentric wear prevention device for the brake block of the disc brake actuating mechanism.

In the figure: 1. a brake disc; 2. a brake caliper; 3. a brake pad; 4. an oil guide pipe; 5. a piston I; 6. a ratchet; 7. a ratchet wheel; 8. rotating the rod; 9. a turntable; 10. a guide bar; 11. a guide sleeve; 12. a movable plate; 13. a piston cylinder; 14. a piston II; 15. a limiting sleeve; 16. a card slot; 17. a movable rod; 18. a limiting ring; 19. a first spring; 20. fixing the sleeve; 21. a limiting rod; 22. a second spring; 23. an oil storage box; 24. a conduit.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In addition, an element of the present invention may be said to be "secured to" or "disposed on" another element, either directly on the other element or with intervening elements present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Referring to fig. 1 to 6, in an embodiment of the present invention, an anti-eccentric device for a brake block of a disc brake actuator includes:

the brake disc 1 is fixed on a wheel;

the brake caliper 2 is fixed on a vehicle frame, the brake pads 3 which are symmetrically arranged are movably installed in the brake caliper 2, and an oil storage box 23 for storing lubricating oil is fixed in the brake caliper 2;

referring to fig. 1-3 and 6, an oil guide tube 4 is fixedly installed in the brake caliper 2, a through groove is formed in the oil guide tube 4, a first piston 5 fixedly connected with the brake pad 3 is movably installed in the oil guide tube 4, an intermittent transmission mechanism connected with the first piston 5 is arranged in the brake caliper 2, the intermittent transmission mechanism can transport brake oil through the oil guide tube 4 and drive the first piston 5 to move, the intermittent transmission mechanism includes a ratchet 6 fixedly installed on the first piston 5 and penetrating through the through groove, a rotating rod 8 rotatably installed in the brake caliper 2, a ratchet 7 fixedly installed on the rotating rod 8 and engaged with the ratchet 6, a guide assembly connected with the rotating rod 8 is arranged in the brake caliper 2 and connected with the elastic assembly, wherein the guide assembly includes guide rods 10 fixedly installed in the brake caliper 2 and symmetrically, guide sleeves 11 movably installed on the guide rods 10, a movable plate 12 fixedly installed on the guide sleeves 11, a rotary disc 9 is fixed on the rotary disc 9, a protrusion is formed on the rotary disc 9, and a clamping protrusion is formed on the movable plate 12, and connected with the sliding groove 12 of the movable plate.

It should be noted that, in an initial state, the movable plate 12 is located at the end of a stroke in a direction away from the brake disc 1, when the oil guide pipe 4 conveys brake oil, under the action of the pressure of the brake oil, the first piston 5 is driven to move towards the brake disc 1, so as to drive the brake pad 3 to be closely attached to the brake disc 1, and brake processing is performed on the brake disc 1, the first piston 5 also drives the ratchet 6 to move when moving, the ratchet 7 is driven to slightly rotate by a certain angle under the action of the pressure of the brake oil, the rotating rod 8 is driven to rotate when the ratchet 7 rotates, so as to drive the rotating disc 9 to rotate, the movable plate 12 moves due to the engagement of the protrusion and the sliding groove, so as to drive the guide sleeve 11 to move along the length direction of the guide rod 10, the guide rod 10 has a guiding function, so as to ensure that the movable plate 12 does not deviate during movement, after braking is completed, under the action of negative pressure, the brake oil in the oil guide pipe 4 returns to the oil pump, and at the same time, the negative pressure will drive the first piston 5 to reset, so as to ensure that the ratchet 6 does not rotate, the ratchet 7 does not rotate, and the intermittent movement of the first piston 5 is blocked by the sliding groove, and the stroke of the first piston 5 is always, and the same as the stroke of the brake oil leakage of the brake pad when the first piston is not leaked.

Referring to fig. 2-5, a pump mechanism is disposed in the brake caliper 2, the pump mechanism is connected to the oil storage box 23 and the oil guide pipe 4 through a guide pipe 24, the pump mechanism includes a piston cylinder 13 fixedly disposed in the brake caliper 2, a second piston 14 movably disposed in the piston cylinder 13, and a movable rod 17 fixedly disposed on the second piston 14, a reset component connected to the movable rod 17 is disposed in the brake caliper 2, the movable rod 17 is connected to the elastic component, the piston cylinder 13 is connected to the guide pipe 24, the reset component includes a limit sleeve 15 fixedly disposed on the piston cylinder 13, a slot 16 disposed on the limit sleeve 15, and a limit ring 18 fixedly disposed on the movable rod 17 and engaged with the slot 16, a first spring 19 abutted against the limit ring 18 is sleeved on the limit sleeve 15, and the limit sleeve 15 is sleeved on the movable rod 17.

Furthermore, two check valves connected with the conduit 24 are fixed on the piston cylinder 13, in an initial state, the movable plate 12 is located at a stroke end far away from the brake disc 1, so that the second piston 14 is located at a stroke end in the piston cylinder 13, at this time, the limiting ring 18 is located at a stroke end on one side of the clamping groove 16, the first spring 19 is in a slightly compressed state, the first piston 5 reciprocates once during each braking, and as the number of times of movement of the first piston 5 is too large, friction between the first piston 5 and the oil conduit 4 is too large, which causes the first piston 5 to be difficult to reset, so that the brake pad 3 and the brake disc 1 are eccentric ground, therefore, lubricating oil needs to be added to the first piston 5, when the movable plate 12 moves, the elastic component is driven to move, so that the movable rod 17 is driven to move towards the direction far away from the piston cylinder 13, the movable rod 17 can also drive the second piston 14 to move, lubricating oil in the oil storage box 23 is sucked into the piston cylinder 13 through the guide pipe 24, the movable rod 17 can also drive the limiting ring 18 to move, the first spring 19 is compressed, when the movable rod 17 moves to a certain position, the elastic component is separated from the movable plate 12, the first spring 19 is elastically released, the movable rod 17 is driven to reset through the limiting ring 18, so that the lubricating oil in the piston cylinder 13 is conveyed into the oil guide pipe 4 through the guide pipe 24 to lubricate the first piston 5, the steps are repeated, and the effect of lubricating the first piston 5 after braking for a certain number of times is achieved.

Referring to fig. 2-5, an elastic assembly connected to the pump fluid mechanism and the intermittent transmission mechanism is further disposed in the brake caliper 2, the pump fluid mechanism can drive the pump fluid mechanism to move through the elastic assembly, so as to deliver the lubricating oil in the oil storage box 23 to the oil guide pipe 4 through the guide pipe 24, the elastic assembly includes a fixed sleeve 20 fixedly mounted on the movable rod 17, a limit rod 21 is movably mounted in the fixed sleeve 20, a second spring 22 abutting against the limit rod 21 is fixed in the fixed sleeve 20, a straight groove is formed in the fixed sleeve 20, a limit block engaged with the straight groove is fixed on the limit rod 21, and the limit rod 21 is engaged with the movable plate 12.

Finally, in the initial state, the second spring 22 is in a compressed state, so that the limiting rod 21 is located at the stroke end in the direction away from the fixing sleeve 20, the limiting block is located at the stroke end on one side of the straight groove, at this time, the movable plate 12 is located between the limiting rod 21 and the piston cylinder 13 and abuts against one side of the limiting rod 21, when the movable plate 12 moves, the limiting rod 21 is driven to move, so that the movable rod 17 is driven to move in the direction away from the piston cylinder 13 through the fixing sleeve 20, at this time, the supporting force provided by the second spring 22 is greater than the pressure provided by the first spring 19, with the continuous movement of the movable rod 17, when the pressure applied to the movable rod 17 by the first spring 19 is greater than the supporting force provided to the limiting rod 21 by the second spring 22, the limiting rod 21 moves towards the fixing sleeve 20 and compresses the second spring 22, when the limiting rod 21 is separated from the movable plate 12, the movable rod 17 is reset under the action of the first spring 19, and, at the same time, when the movable plate 12 moves towards the piston cylinder 12 and the piston cylinder 12 moves back to the fixing sleeve 21, the piston cylinder 12 does not move to the initial position, so that the piston cylinder 12 and the piston cylinder 12 moves to the limiting rod 21 and the piston cylinder 12 moves to the piston cylinder 12 and the piston cylinder 12 moves to the other side intermittently.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a dish actuating mechanism brake block eccentric wear prevention device of stopping which characterized in that, dish actuating mechanism brake block eccentric wear prevention device of stopping includes:

the brake disc (1), the brake disc (1) is fixed on the wheel;

the brake caliper (2) is fixed on a vehicle frame, the brake pads (3) which are symmetrically arranged are movably mounted in the brake caliper (2), and oil storage boxes (23) for storing lubricating oil are fixed in the brake caliper (2);

the brake caliper comprises an oil guide pipe (4), an oil guide pipe (4) and a brake pad (3), wherein the oil guide pipe (4) is fixedly arranged in the brake caliper (2), a through groove is formed in the oil guide pipe (4), a first piston (5) fixedly connected with the brake pad (3) is movably arranged in the oil guide pipe (4), an intermittent transmission mechanism connected with the first piston (5) is arranged in the brake caliper (2), and the intermittent transmission mechanism can move when the oil guide pipe (4) conveys brake oil and drives the first piston (5) to move;

the hydraulic pump mechanism is arranged in the brake caliper (2) and connected with the oil storage box (23) and the oil guide pipe (4) through a guide pipe (24), an elastic assembly connected with the hydraulic pump mechanism and the intermittent transmission mechanism is further arranged in the brake caliper (2), and the hydraulic pump mechanism can drive the hydraulic pump mechanism to move through the elastic assembly so as to convey lubricating oil in the oil storage box (23) to the oil guide pipe (4) through the guide pipe (24).

2. A disc brake actuator brake block anti-eccentric device according to claim 1, characterized in that the intermittent drive mechanism comprises a ratchet (6) fixedly mounted on the first piston (5) and penetrating through the through groove, a rotating rod (8) rotatably mounted in the brake caliper (2), and a ratchet wheel (7) fixedly mounted on the rotating rod (8) and engaged with the ratchet (6), wherein a guide component connected with the rotating rod (8) is arranged in the brake caliper (2), and the guide component is connected with the elastic component.

3. The disc brake actuator brake block eccentric wear prevention device according to claim 2, characterized in that the guide assembly comprises guide rods (10) which are fixedly installed in the brake caliper (2) and symmetrically arranged, a guide sleeve (11) movably installed on the guide rods (10), and a movable plate (12) fixedly installed on the guide sleeve (11), wherein a rotary disc (9) is fixed on the rotary disc (8), a protrusion is fixed on the rotary disc (9), a sliding groove engaged with the protrusion is formed on the movable plate (12), and the movable plate (12) is connected with the elastic assembly.

4. A disc brake actuator brake block anti-eccentric device according to claim 3, characterized in that the pumping mechanism comprises a piston cylinder (13) fixedly installed in the brake caliper (2), a second piston (14) movably installed in the piston cylinder (13), and a movable rod (17) fixedly installed on the second piston (14), a reset component connected with the movable rod (17) is arranged in the brake caliper (2), the movable rod (17) is connected with the elastic component, and the piston cylinder (13) is connected with the guide pipe (24).

5. A disc brake actuator brake block anti-eccentric device according to claim 4, characterized in that the reset assembly comprises a limit sleeve (15) fixedly mounted on the piston cylinder (13), a clamping groove (16) formed in the limit sleeve (15), and a limit ring (18) fixedly mounted on the movable rod (17) and clamped with the clamping groove (16), a first spring (19) abutted against the limit ring (18) is sleeved on the limit sleeve (15), and the limit sleeve (15) is sleeved on the movable rod (17).

6. The disc brake actuator brake block eccentric wear prevention device according to claim 4, wherein the elastic component comprises a fixed sleeve (20) fixedly mounted on the movable rod (17), a limiting rod (21) is movably mounted in the fixed sleeve (20), a second spring (22) abutted against the limiting rod (21) is fixedly arranged in the fixed sleeve (20), a straight groove is formed in the fixed sleeve (20), a limiting block clamped with the straight groove is fixedly arranged on the limiting rod (21), and the limiting rod (21) is matched with the movable plate (12).