CN201407303Y - Oil pressure caliper with automatic adjusting function - Google Patents

Abstract

An oil pressure caliper with an automatic adjusting function comprises an oil pressure cylinder body, an elastic body, a push rod, a resistance unit and a positioning unit, wherein the oil pressure cylinder body is provided with an accommodating space; the elastic body is arranged in the containing space, the elastic body seals the containing space filled with brake oil, and the elastic body is provided with an installation hole; the push rod is hermetically arranged in the mounting hole and is provided with a shaft, the shaft extends from the push rod to the accommodating space, and the shaft is provided with a shoulder; the resistance unit is sleeved on the shaft and is closely adjacent to the accommodating space; the positioning unit is arranged at one end of the shaft. The utility model discloses can reach the function of automatic adjustment, and the possibility of brake failure is eliminated.

Description

Hydraulic calipers with automatic adjustment function

technical field

The utility model relates to an oil pressure caliper, in particular to an oil pressure caliper with an automatic adjustment function.

Background technique

Existing hydraulic calipers please refer to the patent application No. 097121669 "hydraulic calipers driving device" in Taiwan, China, which includes a cover body and an elastic member, wherein: the cover body is provided with an open chamber, and the elastic member is hermetically sealed. Set in the chamber to accommodate brake oil; the elastic member is provided with a side surface, a convex portion and a U-shaped portion, the side surface is in contact with the inner peripheral surface of the chamber, and the convex portion is used to connect a brake block, The U-shaped part is arranged between the convex part and the side for the displacement of the convex part; a fixing plate is arranged between the cover body and the elastic part, and the fixing plate is provided with a shoulder, and the shoulder is connected to the flange of an elastic part Correspondingly, it is used to fix the elastic piece. When the oil pressure is greater than the elasticity of the elastic member, the convex part is pushed out, and the brake block is used to complete the braking effect; otherwise, the convex part returns to its original shape.

After the above-mentioned existing structure is used for a period of time, the brake block is worn due to the friction force generated by the action of the brake disc, and the thickness of the brake block is thus reduced, resulting in an increase in the travel distance from the convex part of the elastic body to push the brake block to the brake disc. If the travel distance is greater than the displacement of the brake handle, the system may not be able to apply pressure, resulting in brake failure.

Utility model content

The main technical problem to be solved by the utility model is to overcome the above-mentioned defects in the prior art and provide a hydraulic caliper with an automatic adjustment function, which can achieve the automatic adjustment function and eliminate the possibility of brake failure.

In order to achieve the aforementioned creative purpose, the utility model includes a hydraulic cylinder, an elastic body, a push rod, a resistance unit and a positioning unit, wherein: the hydraulic cylinder is provided with an accommodating space; the elastic body is provided with The elastic body is provided with a mounting hole, and the elastic body provides an elastic force; the push rod is sealed in the mounting hole, and the push rod is set There is a shaft, the shaft is extended by the push rod and enters the accommodating space, the shaft is provided with a shoulder; the resistance unit is sleeved on the shaft, and the resistance unit is adjacent to the accommodating space to provide a resistance; the positioning unit It is set at one end of the shaft and is linked with the push rod.

In the aforementioned hydraulic caliper with automatic adjustment function, the elastic body is provided with a mounting flange on the inner periphery of the mounting hole.

In the aforementioned hydraulic caliper with automatic adjustment function, the outer periphery of the push rod is provided with a first annular groove sealingly accommodating the mounting flange.

In the aforementioned hydraulic caliper with automatic adjustment function, the shaft is provided with a second annular groove for installing the positioning unit on its outer periphery.

In the aforementioned hydraulic caliper with automatic adjustment function, the elastic body is made of rubber.

The utility model also can adopt following technical scheme:

A hydraulic caliper with automatic adjustment function, which is characterized in that it includes a hydraulic cylinder, an elastic body, a push rod, a resistance unit and a positioning unit, wherein: the hydraulic cylinder is provided with It is hollow and provided with a flange, the hydraulic cylinder has a side cover, the side cover is sealingly arranged on the inner circumference of the hydraulic cylinder, the side cover has a receiving hole, the receiving hole faces the flange, The hydraulic cylinder is provided with an accommodating space defined between the flange and the side cover; the elastic body is arranged in the accommodating space and between the flange and the side cover, and the elastic body is The accommodating space filled with brake fluid is closed, and the elastic body is provided with a mounting hole; the push rod is arranged in the mounting hole in a sealed manner, and the push rod is provided with a shaft, which is extended from the push rod to the accommodating hole, The shaft is provided with a shoulder; the resistance unit is sheathed on the shaft, and the resistance unit is close to the inner periphery of the accommodating hole; the positioning unit is arranged at one end of the shaft.

In the aforementioned hydraulic caliper with automatic adjustment function, the elastic body is provided with a mounting flange on the inner periphery of the mounting hole.

In the aforementioned hydraulic caliper with automatic adjustment function, the outer periphery of the push rod is provided with a first annular groove sealingly accommodating the mounting flange.

In the aforementioned hydraulic caliper with automatic adjustment function, the shaft is provided with a second annular groove for installing the positioning unit on its outer periphery.

In the aforementioned hydraulic caliper with automatic adjustment function, the elastic body is made of rubber.

Thus, when the oil pressure in the accommodation space is greater than the resistance and the positioning unit pushes against the resistance unit, the resistance unit is pushed by the positioning unit; when the oil pressure in the accommodation space is lower than the elastic force and the shoulder pushes against the resistance unit, the push rod is resisted The unit stops working.

The beneficial effect of the utility model is that the utility model can achieve the function of automatic adjustment and eliminate the possibility of brake failure.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

Fig. 1 is a three-dimensional exploded schematic view of the hydraulic caliper with automatic adjustment function of the present invention.

FIG. 2 is a schematic cross-sectional view of the hydraulic caliper with automatic adjustment function of the present invention in a released state.

3 is a schematic cross-sectional view of the hydraulic caliper with automatic adjustment function in the braking state of the present invention.

4 is a schematic cross-sectional view of the hydraulic caliper with automatic adjustment function of the utility model after the brake pads are worn.

5 is a schematic cross-sectional view of the braking state of the hydraulic caliper with automatic adjustment function of the utility model when the brake pads are worn out.

6 is a schematic cross-sectional view of the release state of the hydraulic caliper with automatic adjustment function of the utility model when the brake pads are worn.

Explanation of symbols in the figure:

10 Left hydraulic cylinder 20 Right hydraulic cylinder 31 Flange

32 side cover 33 accommodation hole 34 accommodation space

40 Elastomer 41 Installation hole 42 Installation flange

43 perforation 50 push rod 51 first annular groove

52 axis 53 shoulder 54 second annular groove

60 brake blocks 70 resistance units 80 positioning units

90 discs

Detailed ways

The utility model relates to a hydraulic caliper with automatic adjustment function, please refer to Fig. 1 to Fig. 2, the main embodiment of the utility model includes a left hydraulic cylinder 10 and a right hydraulic cylinder 20, the right hydraulic cylinder 20 is connected with the left hydraulic cylinder 10; in the preferred embodiment of the utility model, the left hydraulic cylinder 10 and the right hydraulic cylinder 20 are mutually symmetrical structures for To provide symmetrical and average braking force, the following description is only described in detail for a single hydraulic cylinder 10 , 20 .

The hydraulic cylinders 10, 20 are hollow structures, the inner circumference of the hydraulic cylinders 10, 20 is provided with an annular flange 31, the hydraulic cylinders 10, 20 include a side cover 32, and the side cover 32 is sealed To close the inner periphery of the hydraulic cylinders 10, 20, the side cover 32 is provided with a receiving hole 33, the receiving hole 33 is facing the flange 31, the hydraulic cylinders 10, 20 are provided with a receiving space 34, the The receiving space 34 is defined between the flange 31 and the side cover 32;

The hydraulic caliper with automatic adjustment function of the utility model further includes an elastic body 40, which is sealed between the flange 31 and the side cover 32, and the elastic body 40 is arranged in the accommodating space 34, and The accommodating space 34 is hermetically closed, the elastic body 40 is made of rubber material, the elastic body 40 is provided with a mounting hole 41, the mounting hole 41 is located at the center of the elastic body 40, and the elastic body 40 is provided with a ring fitting A flange 42 is provided, and the installation flange 42 is formed on the inner periphery of the installation hole 41. The elastic body 40 is provided with a perforation 43, and the perforation 43 is located at the bottom center of the installation hole 41;

The hydraulic caliper with automatic adjustment function of the utility model further includes a push rod 50, which is sealed and accommodated in the installation hole 41 of the elastic body 40, and the push rod 50 is matched with a brake block 60, The push rod 50 is provided with a first annular groove 51, the first annular groove 51 is arranged on the outer periphery of the push rod 50 and matches with the annular installation flange 42 of the elastic body 40, and the annular installation flange 42 is matched with the first The annular groove 51 is engaged to firmly connect the elastic body 40 and the push rod 50, and provide a sealing effect. The push rod 50 extends with a shaft 52, and the shaft 52 is provided with a shoulder 53 at its middle position. The shaft 52 is provided with There is a second annular groove 54, the shaft 52 passes through the through hole 43, and extends into the accommodating space 34, the accommodating space 34 is filled with brake fluid, the push rod 50 is made of plastic or light metal (such as aluminum alloy) made to reduce weight;

The hydraulic caliper with automatic adjustment function of the utility model further includes a resistance unit 70 and a positioning unit 80, the resistance unit 70 is sleeved on the shaft 52 of the push rod 50, the positioning unit 80 and the second The annular groove 54 engages, and the size of the resistance unit 70 is matched with the diameter of the accommodating hole 33 to generate friction and provide a resistance.

Please refer to Figure 2 and Figure 3 for the action mode of the utility model. Figure 2 shows that the hydraulic caliper with the automatic adjustment function of the utility model is in the released state, that is, the hydraulic caliper with the automatic adjustment function of the utility model does not perform braking , the elastic body 40 provides an elastic force to push the push rod 50 toward the accommodating space 34, and at the same time, the shoulder 53 of the shaft 52 abuts against the resistance unit 70, and the resistance provided by the resistance unit 70 is greater than that provided by the elastic body 40. the elastic force of the push rod 50 to stop; Fig. 3 is the hydraulic caliper with the automatic adjustment function of the utility model in the braking state, that is, the hydraulic caliper with the automatic adjustment function of the utility model executes the brake, when the accommodating space 34 When the oil pressure inside rises, the push rod 50 is pushed to the brake block 60 by the oil pressure. When the brake block 60 pushes against the disc 90, the hydraulic caliper with automatic adjustment function of the utility model performs the braking action. When the accommodating space 34 When the oil pressure inside is less than the elastic force provided by the elastic body 40, the elastic body 40 pushes the push rod 50 back to the released state as shown in FIG. 2 .

After a certain period of use and operation, the brake block 60 wears out, which causes the thickness of the brake block 60 to decrease. When the brake shoe wears out, please refer to Figure 4 to Figure 6 for the action mode of the utility model. When the oil pressure in the accommodation space 34 rises and pushes the push rod 50 to the brake shoe 60, the positioning unit 80 abuts against the resistance unit 70, as shown in Figure 4, at this time, the brake block 60 does not contact the disc 90 due to the reduced thickness, and the oil pressure in the accommodation space 34 continues to rise, and is greater than the resistance provided by the resistance unit 70. At this time, the positioning unit 80 Push the resistance unit 70 to move towards the brake block 60, and the push rod 50, the positioning unit 80 and the resistance unit 70 move simultaneously until the brake block 60 pushes against the disc 90, as shown in Figure 5, the braking effect of the utility model after the brake block is worn out is shown. state. When the oil pressure in the accommodating space 34 is less than the elastic force provided by the elastic body 40, the elastic body 40 pushes the push rod 50 back, and when the shoulder 53 of the shaft 52 abuts against the resistance unit 70, the push rod 50 is pushed by the resistance unit 70 Resistance blocks and stops, as shown in Figure 6, showing the release state of the utility model when the brake pads are worn.

The structural design of the utility model can achieve the function of automatic adjustment, so the moving distance of the brake block 60 and the disc 90 can be kept consistent, therefore, the brake feel of the utility model can be maintained, and the possibility of brake failure can be eliminated.

The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the utility model, All still belong to within the scope of the technical solution of the utility model.

Claims (10)

1. A hydraulic caliper with automatic adjustment function, characterized in that it comprises a hydraulic cylinder, an elastic body, a push rod, a resistance unit and a positioning unit, The hydraulic cylinder is provided with an accommodating space; The elastic body is arranged in the accommodating space, the elastic body closes the accommodating space filled with brake oil, and the elastic body is provided with a mounting hole; The push rod is sealingly arranged in the mounting hole, the push rod is provided with a shaft, the shaft extends from the push rod to the accommodation space, and the shaft is provided with a shoulder; The resistance unit is sheathed on the shaft, and the resistance unit is adjacent to the accommodation space; The positioning unit is arranged at one end of the shaft. 2 . The hydraulic caliper with automatic adjustment function according to claim 1 , wherein the elastic body is provided with a mounting flange on the inner periphery of the mounting hole. 3 . 3 . The hydraulic caliper with automatic adjustment function according to claim 2 , wherein the push rod is provided with a first annular groove sealingly accommodating the mounting flange on its outer periphery. 4 . 4 . The hydraulic caliper with automatic adjustment function according to claim 1 , wherein the shaft is provided with a second annular groove on its outer periphery for accommodating a positioning unit. 4 . 5. The hydraulic caliper with automatic adjustment function according to any one of claims 1 to 4, wherein the elastic body is made of rubber. 6. A hydraulic caliper with automatic adjustment function, characterized in that it includes a hydraulic cylinder, an elastic body, a push rod, a resistance unit and a positioning unit, wherein: The inner circumference of the hydraulic cylinder is hollow and provided with a flange. The hydraulic cylinder has a side cover which is sealed on the inner circumference of the hydraulic cylinder. The side cover has a a hole, the accommodating hole faces the flange, and the hydraulic cylinder is provided with an accommodating space defined between the flange and the side cover; The elastic body is arranged in the accommodating space and between the flange and the side cover. The elastic body closes the accommodating space filled with brake oil, and the elastic body is provided with a mounting hole; The push rod is sealingly arranged in the installation hole, the push rod is provided with a shaft, the shaft is extended from the push rod to the accommodation hole, and the shaft is provided with a shoulder; The resistance unit is sheathed on the shaft, and the resistance unit is adjacent to the inner circumference of the accommodation hole; The positioning unit is arranged at one end of the shaft. 7 . The hydraulic caliper with automatic adjustment function according to claim 6 , wherein the elastic body is provided with a mounting flange on the inner periphery of the mounting hole. 8 . 8 . The hydraulic caliper with automatic adjustment function according to claim 7 , wherein the push rod is provided with a first annular groove sealingly accommodating the installation flange on its outer periphery. 9 . 9 . The hydraulic caliper with automatic adjustment function according to claim 6 , wherein the shaft is provided with a second annular groove on its outer periphery for accommodating a positioning unit. 10 . 10. The hydraulic caliper with automatic adjustment function according to any one of claims 6 to 9, wherein the elastic body is made of rubber.

Images