CN215147143U

CN215147143U - Boring inner hole positioning device for trailer brake drum

Info

Publication number: CN215147143U
Application number: CN202121236241.8U
Authority: CN
Inventors: 李兵; 麻常浩; 崔洪文; 张海峰; 范庆波
Original assignee: Longkou Jiaodong Machinery Parts Co ltd
Current assignee: Longkou Jiaodong Machinery Parts Co ltd
Priority date: 2021-05-31
Filing date: 2021-05-31
Publication date: 2021-12-14
Anticipated expiration: 2031-05-31

Abstract

The utility model belongs to the technical field of brake positioning equipment, in particular to a trailer brake drum boring inner hole positioning device, which comprises a brake wheel hub, wherein the bottom end of the brake wheel hub is provided with a brake drum, the top end of the brake wheel hub is provided with a dust guard, the dust guard is arranged on the brake wheel hub through a clamping block, the top end of the brake wheel hub is provided with a plurality of fixed blocks, the fixed blocks are provided with screw holes, the side surface of each fixed block is provided with a sealing sleeve, the side surface of each sealing sleeve is provided with a sealing plug, a fixed column is arranged in each sealing sleeve, the tail end of each fixed column is provided with a clamping block, the middle of the brake wheel hub is provided with a main shaft, the utility model can effectively fix the device on the main shaft through a plurality of arranged limiting blocks, improve the positioning precision, prevent dust from entering the device through the arranged dust guard, avoid the dust from accumulating to influence the use of the device, and provide effective buffering for the positioning device through the arranged springs, prevent the damage of the positioning device or the main shaft caused by excessive vibration during the use process.

Description

Boring inner hole positioning device for trailer brake drum

Technical Field

The utility model relates to a trailer brake drum boring hole positioner belongs to brake positioning device technical field.

Background

A drum brake, generally a drum brake, is composed of a rotating part, a fixed part, an actuating part and a position adjusting device. It is composed of brake bottom plate, brake cylinder, brake shoe, spring, pin and brake drum. Only commonly adopted for rear wheels. Drum brakes have an iron casting shaped like a tambourine, called a brake drum, which is fixed to the tire and rotates at the same speed. The disc brake has the advantages of better reactivity and stability, better heat dissipation, simple and convenient replacement and the like. Drum brakes are used in many rear wheels of small cars because of their low cost and high absolute braking force. But the wear rate is higher and therefore the overall cost is higher. The existing positioning device has lower positioning function precision, so that the drum brake during braking can easily damage the main shaft for a long time along with rotation, the service life is influenced, and the bearing capacity after positioning is poorer.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a trailer brake drum boring hole positioner, the problem of proposing among the above-mentioned background art is solved.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a trailer brake drum boring hole positioner, includes brake wheel hub, brake wheel hub bottom is equipped with the brake drum, brake wheel hub top is equipped with the dust guard, the dust guard passes through the joint piece and sets up on brake wheel hub, the brake wheel hub top is equipped with a plurality of fixed blocks, be equipped with the screw on the fixed block, the fixed block side is equipped with the seal cover, the seal cover side is equipped with the sealing plug, be equipped with the fixed column in the seal cover, the fixed column end is equipped with the fixture block, be equipped with the main shaft in the middle of the brake wheel hub.

Preferably, the cross-section of the clamping block is trapezoidal, the clamping block is made of soft materials, and a through hole corresponding to the spindle is formed in the middle of the dustproof plate.

Preferably, the side face of the fixing column is provided with threads, the threads are matched with the screw holes, and the clamping block is arranged inside the fixing column through a limiting rod.

Preferably, springs are arranged at the tail end of the limiting rod and the side face of the limiting rod, and the limiting rod is connected with the fixing column in a sliding mode.

Preferably, the brake hub is provided with a moving groove, a limiting block is arranged in the moving groove, and the limiting block is connected with the brake hub in a sliding manner.

Preferably, the side surface of the clamping block is provided with a fixing groove, the fixing groove is matched with the limiting block, and the positions of the moving groove and the fixing block correspond to each other.

Preferably, the side surface of the main shaft is provided with a fixing sleeve, the fixing sleeve is arranged on the inner side of the brake hub, and the fixing sleeve is fixedly connected with the brake hub.

Preferably, the side surface of the main shaft is provided with a positioning groove, the positioning groove is formed in the top end of the side surface of the main shaft, and the positioning groove and the moving groove correspond to each other in position.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model belongs to the technical field of brake positioning equipment, specifically disclose a trailer brake drum boring hole positioner, the utility model discloses a plurality of stoppers that set up can effectively fix the device on the main shaft, improve positioning accuracy, can prevent through the dust guard that sets up that the dust entering device is inside, avoid the dust to accumulate to influence the device and use, can provide effective buffering to positioner through the spring that sets up, prevent to shake too big positioner or the main shaft that leads to in daily use and damage, the utility model discloses simple structure, convenient operation is fit for using widely.

Drawings

Fig. 1 is a cross-sectional view of the present invention;

FIG. 2 is a front view of the present invention;

fig. 3 is a top view of the present invention;

fig. 4 is an enlarged schematic view of the utility model at a;

in the figure: 1. a brake hub; 2. a brake drum; 3. a dust-proof plate; 4. a clamping block; 5. a fixed block; 6. a screw hole; 7. sealing sleeves; 8. a sealing plug; 9. fixing a column; 10. a clamping block; 11. a main shaft; 12. a through hole; 13. a thread; 14. a limiting rod; 15. a spring; 16. a moving groove; 17. a limiting block; 18. fixing grooves; 19. fixing a sleeve; 20. and (6) positioning a groove.

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 the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a trailer brake drum boring hole positioner, includes

brake wheel hub

1, 1 bottom of brake wheel hub is equipped with

brake drum

2, 1 top of brake wheel hub is equipped with dust guard 3, dust guard 3 passes through joint piece 4 and sets up on

brake wheel hub

1, 1 top of brake wheel hub is equipped with a plurality of fixed blocks 5, be equipped with screw 6 on the fixed

block

5, 5 sides of fixed block are equipped with

seal cover

7, 7 sides of seal cover are equipped with sealing plug 8, be equipped with fixed column 9 in the seal cover 7, the 9 ends of fixed column are equipped with fixture block 10, be equipped with main shaft 11 in the middle of the brake wheel hub 1.

Further, the cross-section of the clamping block 4 is trapezoidal, the clamping block 4 is made of soft materials, and a through hole 12 corresponding to the spindle 11 is formed in the middle of the dustproof plate 3.

Further, the side of the fixing column 9 is provided with a thread 13, the thread 13 is matched with the screw hole 6, and the clamping block 10 is arranged inside the fixing column 9 through a limiting rod 14.

Further, springs 15 are arranged at the tail end of the limiting rod 14 and the side face of the limiting rod 14, and the limiting rod 14 is connected with the fixing column 9 in a sliding mode.

Furthermore, a moving groove 16 is formed in the brake hub 1, a limiting block 17 is arranged in the moving groove 16, and the limiting block 17 is connected with the brake hub 1 in a sliding manner.

Further, a fixing groove 18 is formed in the side face of the clamping block 10, the fixing groove 18 is matched with the limiting block 17, and the moving groove 16 corresponds to the fixing block 5 in position.

Further, a fixing sleeve 19 is arranged on the side surface of the main shaft 11, the fixing sleeve 19 is arranged on the inner side of the brake hub 1, and the fixing sleeve 19 is fixedly connected with the brake hub 1.

Furthermore, the side of the main shaft 11 is provided with a positioning groove 20, the positioning groove 20 is arranged at the top end of the side of the main shaft 11, and the positioning groove 20 corresponds to the moving groove 16.

The working principle is as follows: the utility model relates to a trailer brake drum boring hole positioner, during the use, through rotatory fixed column 9 with the fixture block 10 to the central removal, the fixture block 10 promotes gag lever post 14 to the main shaft 11 removal after contacting gag lever post 14, the inboard fixed slot 18 of fixture block 10 can restrict gag lever post 14 and remove, gag lever post 14 removes to accomplish the location in the constant head tank 20 of main shaft 11 side, continue rotatory fixed column 9 in order to adjust the interval between fixed column 9 and the fixture block 10, and provide the buffering to stopper 17 and main shaft 11 under the elastic effect of spring 15, avoid stopper 17 to fix insecure and lead to becoming flexible and damaging main shaft 11, also can absorb the vibrations in the vehicle driving process simultaneously, avoid stopper 17 to fix to lead to vibrations damage gag lever post 14 or main shaft 11, the dust guard 3 of brake wheel hub 1 top can block the dust, avoid the dust to get into the inside accumulation influence of device and use, the utility model discloses simple structure, convenient operation is fit for using widely.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a trailer brake drum bores hole positioner which characterized in that: including brake wheel hub (1), brake wheel hub (1) bottom is equipped with brake drum (2), brake wheel hub (1) top is equipped with dust guard (3), dust guard (3) set up on brake wheel hub (1) through joint piece (4), brake wheel hub (1) top is equipped with a plurality of fixed blocks (5), be equipped with screw (6) on fixed block (5), fixed block (5) side is equipped with seal cover (7), seal cover (7) side is equipped with sealing plug (8), be equipped with fixed column (9) in seal cover (7), fixed column (9) end is equipped with fixture block (10), be equipped with main shaft (11) in the middle of brake wheel hub (1).

2. The device for positioning the inner bore of the brake drum of the trailer according to claim 1, wherein: the cross-section of the clamping block (4) is trapezoidal, the clamping block (4) is made of soft materials, and a through hole (12) corresponding to the spindle (11) is formed in the middle of the dustproof plate (3).

3. The device for positioning the inner bore of the brake drum of the trailer according to claim 1, wherein: the side of the fixing column (9) is provided with threads (13), the threads (13) are matched with the screw holes (6), and the clamping block (10) is arranged inside the fixing column (9) through a limiting rod (14).

4. The device for positioning the inner bore of the brake drum of the trailer according to claim 3, wherein: the spring (15) is arranged at the tail end of the limiting rod (14) and the side face of the limiting rod (14), and the limiting rod (14) is connected with the fixing column (9) in a sliding mode.

5. The device for positioning the inner bore of the brake drum of the trailer according to claim 1, wherein: the brake device is characterized in that a moving groove (16) is formed in the brake hub (1), a limiting block (17) is arranged in the moving groove (16), and the limiting block (17) is connected with the brake hub (1) in a sliding mode.

6. The device for positioning the inner bore of the brake drum of the trailer according to claim 5, wherein: the side surface of the clamping block (10) is provided with a fixing groove (18), the fixing groove (18) is matched with the limiting block (17), and the moving groove (16) corresponds to the fixing block (5) in position.

7. The device for positioning the inner bore of the brake drum of the trailer according to claim 1, wherein: the side surface of the main shaft (11) is provided with a fixing sleeve (19), the fixing sleeve (19) is arranged on the inner side of the brake hub (1), and the fixing sleeve (19) is fixedly connected with the brake hub (1).

8. The device for positioning the inner bore of the brake drum of the trailer according to claim 1, wherein: the side of the main shaft (11) is provided with a positioning groove (20), the positioning groove (20) is arranged at the top end of the side of the main shaft (11), and the positioning groove (20) corresponds to the moving groove (16) in position.