CN219317486U

CN219317486U - Noise-reduction type brake drum

Info

Publication number: CN219317486U
Application number: CN202320920536.XU
Authority: CN
Inventors: 冯敬明; 李忠诚; 侯代科
Original assignee: Liangshan Shentong Casting Co ltd
Current assignee: Liangshan Shentong Casting Co ltd
Priority date: 2023-04-18
Filing date: 2023-04-18
Publication date: 2023-07-07
Anticipated expiration: 2033-04-18

Abstract

The utility model relates to the technical field of brake drums and discloses a noise-reducing brake drum, which comprises a brake drum, wherein one side of the brake drum is provided with a mounting groove, a noise-reducing ring is arranged in the mounting groove, and the noise-reducing ring is in sliding fit with the mounting groove; the noise insulation cotton in the noise reduction ring can absorb high-frequency noise generated by mutual friction between the brake shoe and the brake drum, the noise reduction effect is good, the comfort of passengers during riding is improved, one end of the connecting rod can extend into the clamping groove under the acting force of the spring, so that the first connecting column is fixed, when the first connecting column needs to move, the handle drives the connecting rod to be separated from the clamping groove, the mounting hole is matched with the bolt to fixedly mount the mounting surface and the brake drum on an axle of a vehicle, the noise reduction ring is fixed through the screw and the noise reduction ring in a threaded connection mode, and the noise reduction ring can be prevented from loosening during rotation of the brake drum.

Description

Noise-reduction type brake drum

Technical Field

The utility model relates to the technical field of brake drums, in particular to a noise-reduction type brake drum.

Background

The brake drum is a friction partner of a drum brake, and should have a stable friction coefficient as high as possible, and appropriate wear resistance, heat dissipation, heat capacity, and the like, in addition to strength and rigidity required as members; the brake drum is an important component of a drum brake system, and when the brake is applied, the piston applies pressure to the two brake pads to enable the brake pads to be closely attached to the inner wall of a drum chamber, and the rotation of the wheel is stopped by friction force generated between the brake pads, so that the purpose of braking is achieved.

The prior Chinese patent with publication number of CN206545659U discloses a brake drum. The brake drum includes: the novel grinding wheel comprises a bottom wall and a cylinder wall, wherein one end of the cylinder wall is connected with the bottom wall, the other end of the cylinder wall is provided with an opening, a sleeve hole for penetrating through a hub is formed in the bottom wall, and an annular grinding ring is arranged on the inner surface of the cylinder wall. According to the brake drum, the contact area between the brake shoe and the brake drum is increased by arranging the grinding ring, so that the braking effect is improved.

However, the brake drum described above has the following drawbacks: the drum brake generates braking moment through the interaction among the brake shoes, the friction plates and the brake drum, and high-frequency vibration noise can be generated due to the mutual friction between the brake shoes and the brake drum in the braking process of the automobile, so that the driving safety is influenced, and the comfort of passengers is also influenced.

Accordingly, there is a need to provide a noise reduction type brake drum that solves the above-mentioned technical problems.

Disclosure of Invention

The utility model aims to provide a noise-reducing brake drum which has the effect that sound insulation cotton can absorb high-frequency noise.

The technical aim of the utility model is realized by the following technical scheme: the utility model provides a type of making an uproar brake drum falls, includes the brake drum, the mounting groove has been seted up to one side of brake drum, be provided with the ring of making an uproar falls in the mounting groove, the ring of making an uproar with mounting groove sliding fit falls, the intra-annular cavity of making an uproar has been seted up, be provided with soundproof cotton in the intra-annular cavity of making an uproar falls, a plurality of second recesses have been seted up to one side of brake drum, a plurality of second recesses use the axle center of brake drum to be annular array distribution as the center, be provided with first fixed subassembly in the second recess, first fixed subassembly includes first connecting cylinder, the one end and the second recess fixed connection of first connecting cylinder, sliding mounting has first connecting column in the first connecting cylinder, fixedly connected with first connecting seat on the lateral wall of first connecting cylinder, fixedly connected with second connecting cylinder in the second connecting cylinder, sliding mounting has the second connecting column on the lateral wall of second connecting cylinder, fixedly connected with second connecting cylinder is the second connecting cylinder is kept away from with first connecting plate, the second connecting plate is kept away from to the other end, the first connecting plate is kept away from to the first connecting plate, the other end is connected with the first connecting plate, and the articulated arc is kept away from mutually.

Through adopting above-mentioned technical scheme, the noise-proof cotton in the noise reduction ring can absorb the high frequency noise that produces of mutual friction between brake shoe and the brake drum, and noise reduction effect is better, has improved the travelling comfort when passenger takes a car.

The utility model is further provided with: the second fixed subassembly includes the connecting rod, a plurality of first recesses have been seted up on the brake drum, be provided with the spring in the first recess, the one end of spring and the inside wall fixed connection of first recess, the other end of spring with connecting rod fixed connection, two draw-in grooves have been seted up on the first connecting cylinder, the one end that the spring was kept away from to the connecting rod stretches into in the draw-in groove, fixedly connected with handle on the lateral wall of connecting rod.

Through adopting above-mentioned technical scheme, under the effort of spring for the one end of connecting rod can stretch into in the draw-in groove, thereby fix first spliced pole, when first spliced pole needs to remove, drive the connecting rod through the handle break away from in the draw-in groove can.

The utility model is further provided with: one side of the brake drum is fixedly connected with a mounting surface, a plurality of mounting holes are formed in the mounting surface, and the plurality of mounting holes are distributed in an annular array with the axle center of the mounting surface as the center.

By adopting the technical scheme, the mounting surface and the brake drum can be fixedly mounted on the axle of the vehicle by the use of the mounting holes matched with the bolts.

The utility model is further provided with: the brake drum is provided with a plurality of screws, the screws penetrate through the side wall of the brake drum, the screws are rotationally connected with the brake drum, and one ends of the screws are in threaded connection with the side wall of the noise reduction ring.

Through adopting above-mentioned technical scheme, through screw and ring threaded connection that makes an uproar falls, can fix the ring of making an uproar falls, can prevent that the brake drum from making an uproar ring can appear becoming flexible when rotatory.

The utility model is further provided with: the inner side wall of the brake drum is provided with a plurality of through holes.

Through adopting above-mentioned technical scheme, the through-hole can make the better entering of noise that produces when brake shoe and brake drum contact fall in the noise ring, improves the noise reduction effect of ring of falling.

The utility model is further provided with: a plurality of anti-slip protrusions are arranged on the inner side wall of the brake drum.

By adopting the technical scheme, the anti-slip protrusion can increase the contact area between the brake shoe and the brake drum, so that the braking effect of the brake drum is better.

In summary, the utility model has the following beneficial effects: noise insulation cotton in the noise reduction ring can absorb the high-frequency noise that the mutual friction produced between brake shoe and the brake drum, noise reduction effect is better, the travelling comfort of passenger when taking advantage of the car has been improved, under the effort of spring, make the one end of connecting rod can stretch into in the draw-in groove, thereby fix first spliced pole, when first spliced pole needs to remove, drive the connecting rod break away from in the draw-in groove through the handle can, mounting hole cooperation bolt use can be with installation face and brake drum fixed mounting on the axletree of vehicle, through screw and noise reduction ring threaded connection, can fix the noise reduction ring, can prevent that the brake drum from making an uproar the ring can appear not hard up when rotatory.

Drawings

FIG. 1 is a schematic three-dimensional structure of the present utility model;

FIG. 2 is a schematic view of a three-dimensional structure of the noise reduction ring removed according to the present utility model;

FIG. 3 is a schematic cross-sectional side view of the noise reduction ring removed in accordance with the present utility model;

FIG. 4 is a schematic three-dimensional structure of a noise reduction ring of the present utility model;

FIG. 5 is a schematic three-dimensional structure of a first fixing member and a second fixing member according to the present utility model;

fig. 6 is an enlarged schematic view of the structure of fig. 3 at a.

In the figure: 1. a brake drum; 2. a mounting surface; 3. a mounting hole; 4. a noise reduction ring; 5. a noise reduction hole; 6. a slip preventing protrusion; 7. a through hole; 8. a screw; 9. an arc-shaped plate; 10. a first connecting cylinder; 11. a first connection post; 12. a second connecting cylinder; 13. a second connection post; 14. a first connection base; 15. a second connecting seat; 16. a connecting plate; 17. a connecting rod; 18. a spring; 19. a grip; 20. a clamping groove; 21. a mounting groove; 22. a first groove; 23. and a second groove.

Detailed Description

The present utility model will be further described with reference to the drawings in the embodiments of the present utility model.

Referring to fig. 1 to 6, in an embodiment of the present utility model, a noise reduction type brake drum includes a brake drum 1, a mounting groove 21 is formed on one side of the brake drum 1, a noise reduction ring 4 is disposed in the mounting groove 21, the noise reduction ring 4 is slidably matched with the mounting groove 21, a cavity is formed in the noise reduction ring 4, a soundproof cotton (not shown in the drawings) is disposed in the cavity of the noise reduction ring 4, a plurality of noise reduction holes 5 are formed in the noise reduction ring 4, a plurality of second grooves 23 are formed on one side of the brake drum 1, the plurality of second grooves 23 are distributed in an annular array with an axle center of the brake drum 1 as a center, a first fixing component is disposed in the second grooves 23, the first fixing component includes a first connecting cylinder 10, one end of the first connecting cylinder 10 is fixedly connected with the second grooves 23, a first connecting column 11 is slidably mounted in the first connecting cylinder 10, the side wall of the first connecting column 11 is fixedly connected with a first connecting seat 14, the side wall of the first connecting cylinder 10 is fixedly connected with a second connecting cylinder 12, a second connecting column 13 is slidably installed in the second connecting cylinder 12, the side wall of the second connecting column 13 is fixedly connected with a second connecting seat 15, a connecting plate 16 is arranged on the second connecting seat 15, one end of the connecting plate 16 is hinged with the second connecting seat 15, the other end of the connecting plate 16 is hinged with the first connecting seat 14, second fixing components are symmetrically arranged on the first connecting cylinder 10, one end, far away from the second connecting cylinder 12, of the second connecting column 13 is fixedly connected with an arc plate 9, and one side, far away from the second connecting column 13, of the arc plate 9 is contacted with the side wall of the noise reduction ring 4; when the noise reduction ring 4 is used, the noise reduction ring 4 is installed in the installation groove 21 of the brake drum 1, the first connecting column 11 is moved to drive the first connecting seat 14 to move, the first connecting seat 14 is moved to drive the second connecting seat 15 to move through the connecting plate 16, the second connecting seat 15 is moved to drive the second connecting column 13 to move, the second connecting column 13 is moved to drive the arc plate 9 to move, the arc plate 9 is abutted against the side wall of the noise reduction ring 4, then the second fixing component is used for fixing the first connecting column 11, the installation of the noise reduction ring 4 can be completed, in the process, the noise insulation cotton in the noise reduction ring 4 can absorb high-frequency noise generated by mutual friction between the brake shoes and the brake drum 1, the noise reduction effect is good, and the comfort of passengers during riding is improved.

In this embodiment, preferably, the second fixing assembly includes a connecting rod 17, the brake drum 1 is provided with a plurality of first grooves 22, a spring 18 is disposed in each first groove 22, one end of each spring 18 is fixedly connected with an inner side wall of each first groove 22, the other end of each spring 18 is fixedly connected with the connecting rod 17, the first connecting cylinder 10 is provided with two clamping grooves 20, one end of the connecting rod 17 away from the spring 18 extends into each clamping groove 20, and a grip 19 is fixedly connected to a side wall of the connecting rod 17; under the action of the spring 18, one end of the connecting rod 17 can extend into the clamping groove 20, so that the first connecting column 11 is fixed, and when the first connecting column 11 needs to move, the handle 19 drives the connecting rod 17 to be separated from the clamping groove 20.

In this embodiment, preferably, one side of the brake drum 1 is fixedly connected with a mounting surface 2, a plurality of mounting holes 3 are formed in the mounting surface 2, and the plurality of mounting holes 3 are distributed in an annular array with the axle center of the mounting surface 2 as the center; the mounting holes 3 are used in combination with bolts to fixedly mount the mounting surface 2 and the brake drum 1 on the axle of the vehicle.

In this embodiment, preferably, the brake drum 1 is provided with a plurality of screws 8, the screws 8 penetrate through the side wall of the brake drum 1, the screws 8 are rotatably connected with the brake drum 1, and one ends of the screws 8 are in threaded connection with the side wall of the noise reduction ring 4; the noise reduction ring 4 can be fixed through the threaded connection of the screw 8 and the noise reduction ring 4, and the noise reduction ring 4 can be prevented from loosening when the brake drum 1 rotates.

In this embodiment, preferably, a plurality of through holes 7 are formed on the inner side wall of the brake drum 1; the through holes 7 can enable noise generated when the brake shoes are in contact with the brake drum 1 to better enter the noise reduction ring 4, and the noise reduction effect of the noise reduction ring 4 is improved.

In this embodiment, preferably, a plurality of cleats 6 are provided on the inner side wall of the brake drum 1; the anti-slip protrusions 6 can increase the contact area between the brake shoes and the brake drum 1, so that the braking effect of the brake drum 1 is better.

Working principle: when the noise reduction ring 4 is used, the noise reduction ring 4 is installed in the installation groove 21 of the brake drum 1, the first connecting column 11 is moved to drive the first connecting seat 14 to move, the first connecting seat 14 is moved to drive the second connecting seat 15 to move through the connecting plate 16, the second connecting seat 15 is moved to drive the second connecting column 13 to move, the second connecting column 13 is moved to drive the arc plate 9 to move, the arc plate 9 is abutted against the side wall of the noise reduction ring 4, then the second fixing component is used for fixing the first connecting column 11, the installation of the noise reduction ring 4 can be completed, in the process, the noise insulation cotton in the noise reduction ring 4 can absorb high-frequency noise generated by mutual friction between the brake shoes and the brake drum 1, the noise reduction effect is good, and the comfort of passengers during riding is improved.

The foregoing description is only of the preferred embodiments of the utility model, and all changes and modifications that come within the meaning and range of equivalency of the structures, features and principles of the utility model are therefore intended to be embraced therein.

Claims

1. Noise reduction type brake drum, including brake drum (1), its characterized in that: the utility model discloses a brake drum, including brake drum (1), mounting groove (21) has been seted up to one side of brake drum (1), be provided with in mounting groove (21) and fall noise ring (4), fall noise ring (4) with mounting groove (21) sliding fit, set up the cavity in falling noise ring (4), be provided with the soundproof cotton in the cavity of falling noise ring (4), set up a plurality of noise reduction holes (5) on falling noise ring (4), a plurality of second recess (23) have been seted up to one side of brake drum (1), a plurality of second recess (23) are the annular array distribution with the axle center of brake drum (1), be provided with first fixed subassembly in second recess (23), first fixed subassembly includes first connecting cylinder (10), the one end and the second recess (23) fixed connection of first connecting cylinder (10), be provided with first connecting column (11) in the cavity in first connecting cylinder (10), fixedly connected with first connecting seat (14) on the lateral wall of first connecting column (11), be provided with second connecting column (13) in the second connecting cylinder (12) fixedly connected with connecting seat (13), one end of the connecting plate (16) is hinged to the second connecting seat (15), the other end of the connecting plate (16) is hinged to the first connecting seat (14), second fixing components are symmetrically arranged on the first connecting cylinder (10), one end, far away from the second connecting cylinder (12), of the second connecting column (13) is fixedly connected with an arc-shaped plate (9), and one side, far away from the second connecting column (13), of the arc-shaped plate (9) is in contact with the side wall of the noise reduction ring (4).

2. A noise reducing brake drum according to claim 1, wherein: the second fixed subassembly includes connecting rod (17), a plurality of first recesses (22) have been seted up on brake drum (1), be provided with spring (18) in first recess (22), the one end of spring (18) with the inside wall fixed connection of first recess (22), the other end of spring (18) with connecting rod (17) fixed connection, two draw-in grooves (20) have been seted up on first connecting cylinder (10), the one end that spring (18) was kept away from to connecting rod (17) stretches into in draw-in groove (20), fixedly connected with handle (19) on the lateral wall of connecting rod (17).

3. A noise reducing brake drum according to claim 1, wherein: one side of the brake drum (1) is fixedly connected with a mounting surface (2), a plurality of mounting holes (3) are formed in the mounting surface (2), and the plurality of mounting holes (3) are distributed in an annular array with the axle center of the mounting surface (2) as the center.

4. A noise reducing brake drum according to claim 1, wherein: be provided with a plurality of screws (8) on brake drum (1), screw (8) run through the lateral wall of brake drum (1), screw (8) with brake drum (1) rotation is connected, the one end of screw (8) with the lateral wall threaded connection of ring (4) of making an uproar falls.

5. A noise reducing brake drum according to claim 1, wherein: a plurality of through holes (7) are formed in the inner side wall of the brake drum (1).

6. A noise reducing brake drum according to claim 1, wherein: a plurality of anti-slip protrusions (6) are arranged on the inner side wall of the brake drum (1).