CN216618333U

CN216618333U - Parking integrated caliper

Info

Publication number: CN216618333U
Application number: CN202122517415.4U
Authority: CN
Inventors: 王能仓; 王成
Original assignee: Wuxi Cheneng Technology Co ltd
Current assignee: Jiangsu Cheneng Technology Co ltd
Priority date: 2021-10-19
Filing date: 2021-10-19
Publication date: 2022-05-27
Anticipated expiration: 2031-10-19

Abstract

The utility model relates to parking integrated calipers, which comprise a fixed caliper body, a floating caliper body and a brake disc, wherein brake pads are arranged on two sides in a jaw of the floating caliper body, the brake disc is positioned between the two brake pads, a main cylinder oil cavity is formed in the position of the brake pad on one side of the floating caliper body, a main cylinder piston is arranged in the main cylinder oil cavity and is connected with a connecting rod, the connecting rod penetrates into an auxiliary cylinder oil cavity formed in the floating caliper body, an auxiliary cylinder piston is arranged in the auxiliary cylinder oil cavity and is matched with the auxiliary cylinder piston, an action seat for driving the connecting rod to move is connected onto the connecting rod, one side, far away from the action seat, of the auxiliary cylinder piston is connected with a parking spring, the parking spring is connected into the auxiliary cylinder oil cavity, the parking integrated calipers provide stable parking braking force, ensure stable parking, and can adjust braking gap to compensate the abrasion of the brake pads and provide stable braking force, and the replacement frequency of the brake pad is low, and the maintenance cost is low.

Description

Parking integrated caliper

Technical Field

The utility model relates to a brake system, in particular to parking integrated calipers.

Background

Integrative calliper of parking can carry out service brake, can carry out parking brake's braking equipment again, and traditional integrative calliper of parking has following problem: 1. when parking braking is carried out, a hydraulic system is needed for braking, and once the hydraulic system is depressurized, the parking braking force is insufficient, so that the parking is unstable; 2. after the integrative calliper of parking used a period, wearing and tearing can appear in the brake block, and piston piece motion distance is invariable, and brake block motion distance also does not change, can cause the braking force to descend, and the braking is inoperative after wearing and tearing to a certain degree, can only change the brake block, but the brake block was not used up this moment in fact, causes the waste, and changes that maintenance cycle is short, maintains to become high.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned shortcomings of the prior art, it is an object of the present invention to provide an apparatus that solves one or more problems of the prior art.

In order to achieve the purpose, the technical scheme of the utility model is as follows:

the utility model provides an integrative calliper of parking, includes the stationary tong body, floats pincers main part and brake disc, both sides all set up the brake block in keeping silent of floating pincers main part, just the brake disc is located between two brake blocks, the main cylinder oil pocket is seted up in the floating pincers main part is located one side brake block position, set up the main cylinder piston in the main cylinder oil pocket, main cylinder piston connects the connecting rod, the connecting rod is worn in the vice jar oil pocket of seting up in the floating pincers main part, set up vice jar piston in the vice jar oil pocket, the cooperation vice jar piston connect the effect seat that drives the connecting rod motion on the connecting rod, vice jar piston is kept away from effect seat one side and is connected the parking spring, parking spring connects in vice jar oil pocket.

As a further improvement of the above technical solution:

the connecting rod is positioned in the oil cavity of the auxiliary cylinder and is connected with a screw rod, and the acting seat is a nut in threaded connection outside the screw rod.

The auxiliary cylinder piston is provided with a groove, and the nut is arranged in the groove and is rotatably limited in the groove through a clamp spring and a thrust bearing.

An inner conical surface is arranged in the groove, and the matched nut is provided with an outer conical surface.

One end of the parking spring is supported on one side of the auxiliary cylinder piston, the other end of the parking spring is supported on one side of the spring gland, and the spring gland is limited in the auxiliary cylinder oil cavity through the gland clamp spring.

The auxiliary cylinder oil cavity is detachably connected with the sealing cover through a bolt.

A first sealing ring is arranged between the main cylinder piston and the inner wall of the main cylinder oil cavity.

And a second sealing ring is arranged between the auxiliary cylinder piston and the inner wall of the oil cavity of the auxiliary cylinder.

And a third sealing ring is arranged between the connecting rod and the inner wall of the through hole between the main cylinder oil cavity and the auxiliary cylinder piston.

Compared with the prior art, the utility model has the following beneficial technical effects:

1) when parking, the auxiliary cylinder piston is pushed by the parking spring, and the auxiliary cylinder piston is pushed by the connecting rod and the main cylinder piston, namely, the parking braking force is provided by the parking spring, so that stable parking braking force is provided, and the parking stability is ensured;

2) an auxiliary cylinder oil cavity is arranged, hydraulic oil is injected into the auxiliary cylinder oil cavity during driving, and a piston of the auxiliary cylinder is pushed to move towards a parking spring through the pressure of the hydraulic oil, so that the parking spring does not work during driving, and the parking spring does not provide braking force during driving;

3) because the connecting rod is connected with the nut through the screw rod, when the brake pad is worn, the nut can rotate, so that the position of the piston of the main cylinder can be adjusted by matching the screw rod and the connecting rod, the brake clearance can be adjusted, the wear of the brake pad is supplemented, the stable braking force is ensured, the service life of the brake pad is prolonged, and the maintenance frequency and the maintenance cost of a brake system are reduced.

Drawings

Fig. 1 shows a cross-sectional view of a parking integrated caliper of the present invention.

Fig. 2 shows an enlarged cross-sectional view of the parking integrated caliper nut and screw fitting of the present invention.

In the drawings, the reference numbers:

1. a fixed clamp body; 2. a floating tong body; 3. a brake disc; 4. a brake pad; 5. a main cylinder oil chamber; 51. a master cylinder piston; 511. a connecting rod; 512. a screw; 52. a first seal ring; 6. an auxiliary cylinder oil cavity; 61. a secondary cylinder piston; 611. a groove; 62. a parking spring; 63. a spring gland; 64. a gland clamp spring; 65. sealing the cover; 66. a second seal ring; 67. a third seal ring; 7. a nut; 71. a nut clamp spring; 72. and a thrust bearing.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the following detailed description of the present invention is provided with reference to the accompanying drawings and the detailed description. The advantages and features of the present invention will become more apparent from the following description. It is to be noted that the drawings are in a very simplified form and are all used in a non-precise scale for the purpose of facilitating and distinctly aiding in the description of the embodiments of the present invention. To make the objects, features and advantages of the present invention comprehensible, reference is made to the accompanying drawings. It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the implementation conditions of the present invention, so that the present invention has no technical significance, and any structural modification, ratio relationship change or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention.

As shown in fig. 1 and fig. 2, the parking integrated caliper of the embodiment includes a fixed caliper body 1, a floating caliper body 2 and a brake disc 3, wherein both sides of a jaw of the floating caliper body 2 are provided with brake pads 4, the brake disc 3 is located between the two brake pads 4, a main cylinder oil chamber 5 is formed in a position of the floating caliper body 2 located at the brake pad 4 at one side, a main cylinder piston 51 is arranged in the main cylinder oil chamber 5, the main cylinder piston 51 is connected with a connecting rod 511, the connecting rod 511 is inserted into an auxiliary cylinder oil chamber 6 formed in the floating caliper body 2, the connecting rod 511 is located in the auxiliary cylinder oil chamber 6 and is connected with a screw rod 512, an auxiliary cylinder piston 61 is arranged in the auxiliary cylinder oil chamber 6, the screw rod 512 is connected with a nut 7 through an external thread on the screw rod 512 in cooperation with the auxiliary cylinder piston 61, the auxiliary cylinder piston 61 is provided with a groove 611, the nut 7 is arranged in the groove 611, and is rotatably limited in the groove 611 through a nut clamp spring 71 and a thrust bearing 72, an inner conical surface is arranged in the groove 611, the matched nut 7 is provided with an outer conical surface, one side, far away from the action seat, of the auxiliary cylinder piston 61 supports the parking spring 62, the other side of the parking spring 62 is supported on one side of the spring gland 63, and the spring gland 63 is limited in the auxiliary cylinder oil cavity 6 through the gland clamp spring 64.

The auxiliary cylinder oil chamber 6 is detachably connected with a sealing cover 65 through a bolt, so that the auxiliary cylinder oil chamber 6 can be conveniently opened for maintenance.

A first seal ring 52 is arranged between the main cylinder piston 51 and the inner wall of the main cylinder oil chamber 5, a second seal ring 66 is arranged between the auxiliary cylinder piston 61 and the inner wall of the auxiliary cylinder oil chamber 6, and a third seal ring 67 is arranged between the connecting rod 511 and the inner wall of the through hole between the main cylinder oil chamber 5 and the auxiliary cylinder piston 61.

When the parking integrated caliper is used, when parking is carried out, the pressure of the oil cavity 6 of the auxiliary cylinder is relieved, the piston 61 of the auxiliary cylinder is pushed to move leftwards under the action of the parking spring 62, the nut 7 is firstly propped against, then the nut 7 moves leftwards and props against the screw rod 512, the screw rod 512 is matched with the connecting rod 511 to drive the piston 51 of the main cylinder to move leftwards, the brake pads 4 can be propped against through the piston 51 of the main cylinder, and the brake disc 3 is clamped through the two brake pads 4, so that the parking braking force is generated;

when the automobile is normally driven, the auxiliary cylinder oil cavity 6 is pressurized, namely the parking spring 62 can be compressed through the auxiliary cylinder piston 61, the main cylinder piston 51 is reset due to the return function of the main cylinder piston 51, namely the braking force is relieved, the two brake pads 4 are separated from the brake disc 3, namely the braking is relieved, and the automobile can be normally driven;

when the service brake is carried out, the interior of the main cylinder oil cavity 5 is pressurized and driven, the main cylinder piston 51 is moved leftwards to abut against the brake pads 4, the brake disc 3 is clamped by the two brake pads 4 to provide service brake force, when the main cylinder piston 51 moves leftwards, the connecting rod 511 and the screw rod 512 are driven to move leftwards together, at the moment, the interior of the auxiliary cylinder oil cavity 6 is also pressurized, the nut 7 can only rotate rightwards along the external thread of the screw rod 512 under the hydraulic action to adapt to the distance of the left movement of the main cylinder piston 51, when the brake is finished, the main cylinder piston 51 returns to the original position to release the brake, because the clearance distance between the initial brake pad 4 and the brake disc 3 is smaller than the sum of the clearance between the nut 7 and the auxiliary cylinder piston 61 and the clearance between the screw rod 512 and the screw thread of the nut 7, when the main cylinder piston 51 is reset, the nut 7 cannot rotate, when the brake is carried out again, as long as the brake pads 4 are not worn, the nut 7 cannot rotate, when the brake pads 4 are worn, the clearance distance between the brake pad 4 and the brake disc 3 is increased, when the clearance distance between the brake pad 4 and the brake disc 3 is larger than the sum of the clearance between the nut 7 and the auxiliary cylinder piston 61 and the clearance between the screw 512 and the screw thread of the nut 7, namely, when the brake is released again, the nut 7 is driven to rotate, the screw 512, the connecting rod 511 and the main cylinder piston 51 are driven to move left, the brake clearance can be automatically adjusted, and the brake effect is ensured.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. The utility model provides an integrative calliper of parking which characterized in that: the floating caliper comprises a fixed caliper body, a floating caliper body and a brake disc, brake pads are arranged on two sides of a jaw of the floating caliper body, the brake disc is located between the two brake pads, a main cylinder oil cavity is formed in the position, located on one side, of the brake pad, a main cylinder piston is arranged in the main cylinder oil cavity, the main cylinder piston is connected with a connecting rod, the connecting rod penetrates into an auxiliary cylinder oil cavity formed in the floating caliper body, an auxiliary cylinder piston is arranged in the auxiliary cylinder oil cavity and matched with the auxiliary cylinder piston, an action seat for driving the connecting rod to move is connected to the connecting rod, one side, away from the action seat, of the auxiliary cylinder piston is connected with a parking spring, and the parking spring is connected to the auxiliary cylinder oil cavity.

2. The parking brake caliper according to claim 1, wherein: the connecting rod is positioned in the oil cavity of the auxiliary cylinder and is connected with a screw rod, and the acting seat is a nut in threaded connection outside the screw rod.

3. Parking integrated caliper according to claim 2, characterized in that: the auxiliary cylinder piston is provided with a groove, and the nut is arranged in the groove and is rotatably limited in the groove through a nut clamp spring and a thrust bearing.

4. Parking integrated caliper according to claim 3, characterized in that: an inner conical surface is arranged in the groove, and the nut is matched with the inner conical surface and the outer conical surface.

5. The parking brake caliper according to claim 1, wherein: one end of the parking spring is supported on one side of the auxiliary cylinder piston, the other end of the parking spring is supported on one side of the spring gland, and the spring gland is limited in the auxiliary cylinder oil cavity through the gland clamp spring.

6. The parking brake caliper according to claim 1, wherein: the auxiliary cylinder oil cavity is detachably connected with the sealing cover through a bolt.

7. The parking brake caliper according to claim 1, wherein: a first sealing ring is arranged between the main cylinder piston and the inner wall of the main cylinder oil cavity.

8. The parking brake caliper according to claim 1, wherein: and a second sealing ring is arranged between the auxiliary cylinder piston and the inner wall of the oil cavity of the auxiliary cylinder.

9. The parking brake caliper according to claim 1, wherein: and a third sealing ring is arranged between the connecting rod and the inner wall of the through hole between the main cylinder oil cavity and the auxiliary cylinder piston.