Boosting brake box

Abstract

The utility model provides a power-assisted brake box which comprises a chassis, supports, hydraulic cylinders, brake shoes and gap adjusters, second preformed holes are formed in the upper portion of the chassis in a penetrating mode, a bottom plate is installed on the front faces of the supports, the supports are installed on the two sides of the bottom plate, positioning columns are fixedly arranged on the back face of the bottom plate, and the positioning columns are fixed to the chassis through the second preformed holes. The hydraulic cylinder is installed in the supports on the two sides, telescopic rods are arranged at the two ends of the hydraulic cylinder, impact blocks are arranged at one ends of the telescopic rods, a fixing block is arranged below the chassis, positioning blocks are installed on the two sides in the fixing block, brake shoes are installed on the positioning blocks on the two sides, and first reserved holes are formed in the inner sides of the upper portions of the two brake shoes. The gap adjuster is installed in the first reserved hole, when the wear-resisting piece rubs against the brake drum, the wear-resisting piece is thinned, the gap between the brake shoe and the brake drum is enlarged, the gap adjuster is matched with the contact through the extension rod, and it is ensured that the gap between the brake shoe and the brake drum is always kept within a reasonable range.

Description

Technical Field

[0001] The utility model relates to the field of high-voltage equipment, in particular to a power-assisted brake box. Background Art

[0002] A brake cartridge is a critical safety feature used in automobiles, motorcycles, and other motor vehicles. It converts the vehicle's kinetic energy into heat through hydraulic or mechanical means, thereby slowing or stopping the vehicle. A brake cartridge typically consists of a metal casing and internal brake pads. The brake pads, under pressure from the hydraulic system, contact the brake disc, generating friction that slows or stops the vehicle. During daily use, the brake cartridge requires regular inspection and maintenance to ensure proper performance. Severely worn brake pads can reduce braking effectiveness and even lead to accidents.

[0003] CN202321848815.6 is a kind of automobile drum brake, comprising a brake housing and a back plate detachably arranged on the brake housing, a group of brake shoes are symmetrically arranged on the left and right front of the back plate, brake pads are arranged on the outside of the brake shoes, the brake pads are in contact with the side inner wall of the brake housing, a side chip collection assembly is provided on the brake pads, a brake wheel cylinder is provided on the upper front side of the back plate, a back plate is provided on the upper end of the brake shoe, the piston rods on the left and right sides of the brake wheel cylinder are adapted to the corresponding back plates, a connecting piece is provided on the front lower part of the back plate, two brake shoes are hingedly connected to the connecting piece, a bottom chip collection assembly is provided on the connecting piece, the side chip collection assembly includes a plurality of through holes evenly opened on the brake pad, a cavity is opened in the brake shoe, the cavity is connected to the plurality of through holes, and an arc-shaped magnetic plate is provided in the cavity, which can collect iron chips generated by the friction between the brake pad and the inner wall of the brake drum housing.

[0004] However, the above patent has certain defects when used. Since the driver needs to brake continuously when driving the vehicle for a long time, the brake pads will be worn and thinned when rubbing against the brake drum, resulting in poor braking effect.

[0005] For this reason, a power-assisted brake box is proposed to solve the above-mentioned problems. Utility Model Content

[0006] In order to overcome the deficiencies of the prior art, the utility model provides a power-assisted brake box.

[0007] The utility model is implemented by the following technical solutions:

[0008] A power-assisted brake box, comprising

[0009] chassis;

[0010] A second reserved hole, the second reserved hole being provided through the upper part of the chassis;

[0011] A bracket, wherein a base plate is installed on the front of the bracket, brackets are installed on both sides of the base plate, and a positioning column is fixed on the back of the base plate, and the positioning column is fixed to the chassis through the second reserved hole;

[0012] A hydraulic cylinder is installed in the brackets on both sides, and a telescopic rod is provided at both ends of the hydraulic cylinder, and an impact block is provided at one end of the telescopic rod;

[0013] A fixing block is installed under the chassis, and third reserved holes are provided on both sides of the fixing block. Positioning blocks are installed in the third reserved holes on both sides, and brake shoes are installed on the positioning blocks;

[0014] Brake shoes, wherein two brake shoes are provided, and both brake shoes are mounted in the fixing block via a positioning block, and a first reserved hole is provided on the inner side of the upper side of both brake shoes;

[0015] A gap adjuster, one end of which is installed in the first reserved hole on one side, and one end is provided with an extension rod, the other end of which is provided with a contact, and the contact is installed in the first reserved hole on the other side.

[0016] As a preferred solution of the present invention, the surfaces of the two brake shoes are both provided with through holes, and fixed springs are installed in the through holes.

[0017] As a preferred solution of the present invention, wear-resistant plates are installed on the outer sides of the two brake shoes.

[0018] As a preferred solution of the present invention, a brake drum is installed on one side of the chassis.

[0019] Compared with the prior art, the advantages of the present invention are:

[0020] 1. By providing a first reserved hole on the inner side of the two brake shoes, a clearance adjuster is installed in the first reserved hole. In actual use, when the brake shoe rubs against the brake drum, the clearance adjuster can automatically adjust the clearance between the brake shoe and the brake drum. When the wear-resistant sheet on the outer side of the brake shoe is worn to a certain extent, the clearance adjuster will extend the extension rod so that the contactor presses against the other end of the brake shoe to automatically compensate for the clearance and ensure that the clearance between the brake shoe and the brake drum is always maintained within a reasonable range, thereby effectively improving the stability and service life of the brake.

[0021] 2. By providing a through-hole in the brake shoe surface and installing a retaining spring, when braking, the hydraulic cylinder pushes the telescopic rods at both ends, pushing the impact blocks forward. This allows the wear-resistant pad on the outside of the brake shoe to fit tightly against the brake drum, generating friction and achieving the desired braking effect. Furthermore, the retaining spring ensures a certain gap between the brake shoe and the brake drum when not braking, avoiding unnecessary friction and reducing energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a structural diagram of the chassis of the utility model;

[0023] Figure 2 This is an open structure diagram of the brake drum of the utility model;

[0024] Figure 3 It is an exploded view of the utility model;

[0025] Figure 4 This is a structural diagram of the gap adjuster of the utility model;

[0026] In the figure: 1. chassis; 2. brake drum; 3. positioning column; 4. bottom plate; 5. bracket; 6. hydraulic cylinder; 7. telescopic rod; 8. impact block; 9. fixing block; 10. positioning block; 11. brake shoe; 12. wear-resistant plate; 13. fixing spring; 14. through hole; 15. clearance adjuster; 16. extension rod; 17. contact; 18. first reserved hole; 19. second reserved hole; 20. third reserved hole. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0028] Example:

[0029] See also Figures 1-4 , a power-assisted brake box, comprising:

[0030] Chassis 1;

[0031] A second reserved hole 19, which is provided through the upper part of the chassis 1;

[0032] Bracket 5, the front of the bracket 5 is mounted with a base plate 4, the two sides of the base plate 4 are mounted with brackets 5, the back of the base plate 4 is fixed with a positioning column 3, the positioning column 3 is fixed to the chassis 1 through the second reserved hole 19;

[0033] A hydraulic cylinder 6 is installed in the brackets 5 on both sides. Both ends of the hydraulic cylinder 6 are provided with a telescopic rod 7. One end of the telescopic rod 7 is provided with an impact block 8;

[0034] A fixing block 9 is installed below the chassis 1. A third reserved hole 20 is provided on both sides of the fixing block 9. Positioning blocks 10 are installed in the third reserved holes 20 on both sides, and brake shoes 11 are installed on the positioning blocks 10.

[0035] Brake shoes 11, two brake shoes 11 are provided, both of which are mounted in the fixing block 9 via the positioning block 10, and both of which have a first reserved hole 18 on their upper inner sides;

[0036] The gap adjuster 15 has one end mounted in a first reserved hole 18 on one side, and an extension rod 16 is provided at one end. The other end of the extension rod 16 is mounted with a contact 17 , and the contact 17 is mounted in the first reserved hole 18 on the other side.

[0037] In this embodiment, a bottom plate 4 is installed above the chassis 1, and a positioning column 3 is provided on the back of the bottom plate 4. The bottom plate 4 is fixed to the bottom plate 4 by the positioning column 3. Brackets 5 are installed on both sides of the bottom plate 4. A hydraulic cylinder 6 is installed in the bracket 5. Its function is to push the impact block 8 through the telescopic rod 7, thereby adjusting the gap between the brake shoe 11 and the brake drum 2. A fixing block 9 is installed under the chassis 1. The fixing block 9 is combined with the brake shoe 11 through the positioning block 10 in the third reserved hole 20 to ensure the stability of the brake system. A first reserved hole 18 is provided, and a clearance adjuster 15 is installed in the first reserved hole 18. When the brake shoe 11 rubs against the brake drum 2, the clearance adjuster 15 can automatically adjust the clearance between the brake shoe 11 and the brake drum 2. When the wear-resistant plate 12 on the outside of the brake shoe 11 is worn to a certain extent, the clearance adjuster 15 will extend the extension rod 16, so that the contact 17 will support the other end of the brake shoe 11, realize automatic compensation of the clearance, and ensure that the clearance between the brake shoe 11 and the brake drum 2 is always maintained within a reasonable range, thereby effectively improving the stability and service life of the brake.

[0038] Specifically, the surfaces of the two brake shoes 11 are each provided with a through hole 14 , and a fixing spring 13 is installed in the through hole 14 .

[0039] In this embodiment, a through hole 14 is provided on the surface of the brake shoe 11 and a fixed spring 13 is installed. When braking, the hydraulic cylinder 6 pushes the telescopic rod 7 at both ends, and the impact blocks 8 at both ends are pushed forward, so that the wear-resistant plate 12 on the outside of the brake shoe 11 is tightly fitted against the brake drum 2 during braking, generating friction to achieve the braking effect. When the driver releases the brake, the fixed spring 13 will reset the two brake shoes 11, ensuring that there is a certain gap between the brake shoe 11 and the brake drum 2 in the non-braking state, avoiding unnecessary friction and reducing energy consumption.

[0040] Specifically, wear-resistant plates 12 are installed on the outer sides of the two brake shoes 11 .

[0041] In this embodiment, the wear-resistant sheet 12 is a pair, both of which are installed on the friction side of the two brake shoes 11 and the brake drum 2. The material is a highly wear-resistant composite material that can effectively resist high temperature and wear.

[0042] Specifically, a brake drum 2 is installed on one side of the chassis 1 .

[0043] In this embodiment, the brake drum 2 is fixedly mounted at the center of one side of the chassis 1, corresponding to the brake drum 2. The inner side of the brake drum 2 is a thickened area, which is treated with a special process to enhance wear resistance and heat dissipation, effectively reducing the degradation of braking performance caused by high temperature.

[0044] The working principle of the present invention is as follows: if braking is required, first, under the action of the hydraulic cylinder 6 on the brake disc, the telescopic rod 7 is pushed forward, so that the impact block 8 presses the brake shoes 11 on both sides, thereby causing the wear-resistant plates 12 on the outer walls of the brake shoes 11 on both sides to produce friction with the brake drum 2, thereby achieving the purpose of deceleration and braking. A fixed spring 13 is connected between the two brake shoes 11. When the driver releases the brake, the fixed spring 13 will reset the two brake shoes 11, ensuring that there is a certain gap between the brake shoes 11 and the brake drum 2 in the non-braking state. At the same time, a first reserved hole 18 is provided on the inner side of the two brake shoes 11, and a clearance adjuster 15 is installed in the first reserved hole 18. When the wear-resistant plate 12 rubs against the brake drum 2, the wear-resistant plate 12 will become thinner, and the gap between the brake shoe 11 and the brake drum 2 will become larger. The clearance adjuster 15 cooperates with the contact 17 through the extension rod 16 to ensure that the gap between the brake shoe 11 and the brake drum 2 is always maintained within a reasonable range, thereby effectively improving the stability and service life of the brake.

[0045] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and improved ideas of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A power-assisted brake box, characterized in that: include: chassis (1); A second reserved hole (19), the second reserved hole (19) is provided through the upper part of the chassis (1); A bracket (5), wherein a base plate (4) is mounted on the front of the bracket (5), brackets (5) are mounted on both sides of the base plate (4), a positioning column (3) is fixedly mounted on the back of the base plate (4), and the positioning column (3) is fixed to the chassis (1) through a second reserved hole (19); A hydraulic cylinder (6), the hydraulic cylinder (6) being installed in the brackets (5) on both sides, a telescopic rod (7) being provided at both ends of the hydraulic cylinder (6), and an impact block (8) being provided at one end of the telescopic rod (7); A fixing block (9), the fixing block (9) being installed below the chassis (1), the fixing block (9) being provided with third reserved holes (20) on both sides, positioning blocks (10) being installed in the third reserved holes (20) on both sides, and brake shoes (11) being installed on the positioning blocks (10); Brake shoes (11), wherein two brake shoes (11) are provided, and both brake shoes (11) are installed in the fixing block (9) through the positioning block (10), and a first reserved hole (18) is provided on the inner side of the upper part of the two brake shoes (11); A gap adjuster (15) is provided, wherein one end of the gap adjuster (15) is installed in a first reserved hole (18) on one side, and an extension rod (16) is provided at one end, and a contact (17) is installed at the other end of the extension rod (16), and the contact (17) is installed in the first reserved hole (18) on the other side.

2. The power-assisted brake box according to claim 1, characterized in that: The surfaces of the two brake shoes (11) are both provided with a through hole (14), and a fixing spring (13) is installed in the through hole (14).

3. The power-assisted brake box according to claim 2, characterized in that: Wear-resistant plates (12) are installed on the outsides of the two brake shoes (11).

4. The power-assisted brake box according to claim 3, characterized in that: A brake drum (2) is installed on one side of the chassis (1).

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