CN216343563U

CN216343563U - Brake shoe

Info

Publication number: CN216343563U
Application number: CN202123145627.0U
Authority: CN
Inventors: 万年宝; 朱崇顺; 朱本强; 王修玉
Original assignee: Qingdao East Machinery Co ltd
Current assignee: Qingdao East Machinery Co ltd
Priority date: 2021-12-15
Filing date: 2021-12-15
Publication date: 2022-04-19
Anticipated expiration: 2031-12-15

Abstract

The application relates to a brake shoe comprising a brake member and a friction plate. The braking piece includes the braking plate, horizontal bent plate, vertical bent plate and floor, pass through the connection structure rigid coupling between friction disc and the braking plate, connection structure is including seting up in the recess of friction disc and seting up in the sand grip of braking plate, through sand grip and recess cooperation, realize the friction disc effect of loading and unloading from the braking plate conveniently, two screws have been seted up to the friction disc close to braking plate one side, the braking plate corresponds two screw departments and wears to be equipped with two threaded connection's bolt, the bolt can threaded connection in the screw, the friction disc corresponds the screw position and keeps away from braking plate one end and is provided with the thread bush, through thread bush and screw cooperation, can increase the zonulae occludens between braking plate and the friction disc, this application has the effect of conveniently unloading the friction disc from the braking plate facial make-up.

Description

Brake shoe

Technical Field

The application relates to the field of automobile brake systems, in particular to a brake shoe.

Background

The brake shoe is in a half-moon shape and is a brake element of a drum brake, when braking, two brake shoes are pushed to a brake drum under the action of a brake wheel cylinder, and a friction plate on the brake shoe can rub against the brake drum to play a braking role, so that the brake shoe is one of key safety parts in an automobile braking system.

At present, friction plates on a plurality of brake shoes are riveted on the brake shoes, the friction plates on the brake shoes are gradually thinned after the brake shoes are used for a period of time, and the friction plates need to be replaced frequently to ensure the normal operation of a braking system.

In view of the related art as described above, the inventors have considered that the friction plates on the brake shoes are inconvenient to replace.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem that a friction plate on a brake shoe is inconvenient to replace, the application provides the brake shoe.

The application provides a brake shoe adopts following technical scheme:

a brake shoe comprising:

a brake plate which is arc-shaped along the length direction;

the friction disc, set up in brake plate one side, the length direction of friction disc with brake plate length direction is the same, the brake plate with be provided with connection structure between the friction disc, connection structure includes:

the groove is formed in one side of the friction plate, the open end of the groove is smaller than the bottom end of the groove, and the length direction of the groove is the same as the width direction of the friction plate;

the convex strip is fixed on one side of the brake plate, the length direction of the convex strip is the same as the width direction of the brake plate, and the convex strip can be inserted into the groove along the length direction of the groove.

Through adopting above-mentioned technical scheme, when the friction disc on the brake shoe needs to be changed, operating personnel slided the friction disc along the length direction of sand grip and takes off, then aligns the sand grip one end of brake block with the recess of new friction disc, makes the friction disc along sand grip length direction cunning to with the brake block laminating, so alright realize convenient and fast's change friction disc.

Optionally, the length of the groove is smaller than the width distance of the friction plate.

Through adopting above-mentioned technical scheme, recess one end is the closed end, and one end is the open end, and during the installation friction disc, the friction disc slides to recess closed end along the length direction of sand grip for the closed end of recess can restrict the position of friction disc, when avoiding the friction disc to slide along sand grip length direction, with friction disc roll-off braking plate, has improved the stability that the friction disc was fixed in on the braking plate.

Optionally, the friction plate is bolted to the brake plate.

Through adopting above-mentioned technical scheme, through sand grip and recess cooperation, after the friction disc was fixed in the braking plate, consolidated friction disc and braking plate through the bolt, increased the stability of friction disc with the braking plate to at the braking in-process, avoid the friction disc to break away from the braking plate.

Optionally, a screw hole is formed in one side, close to the brake plate, of the friction plate, and a bolt which is in threaded connection with the screw hole penetrates through the position, corresponding to the screw hole, of the brake plate;

the diameter of the screw hole is smaller than the diameter of the screw of the bolt.

By adopting the technical scheme, the friction plate needs to have the characteristics of wear resistance, low noise, difficult rusting and the like, is generally made of metal fiber, mixed fiber reinforced friction material and the like, is not hard enough,

the friction plate is easy to deform, the diameter of the screw hole is smaller than that of the screw rod of the bolt, and when the screw rod is inserted into the screw hole, the screw rod can be clamped by the screw hole, so that the friction plate and the brake plate are tightly connected through the bolt.

Optionally, a hard threaded sleeve is arranged at a position, corresponding to the screw hole, of the friction plate, the hard threaded sleeve and the screw hole are arranged coaxially, and the bolt can be inserted into the hard threaded sleeve.

Through adopting above-mentioned technical scheme, during the brake, the friction disc produces great frictional force with the brake drum friction, and friction disc and bolted connection department receive frictional force influence yielding, make friction disc and bolted connection department produce the space, correspond the screw position at the friction disc and be provided with the stereoplasm thread bush, the stereoplasm thread bush can be with bolt and friction disc zonulae occludens to further increase the steadiness between friction disc and the braking plate.

Optionally, an insert ring is fixed on the outer peripheral surface of the hard threaded sleeve, and the insert ring can be embedded in the friction plate.

By adopting the technical scheme, the embedded ring on the peripheral surface of the hard threaded sleeve can be embedded in the friction plate, so that the friction plate is tightly connected with the hard threaded sleeve, the bolt can be tightly connected with the friction plate, and the friction plate is further tightly connected with the brake plate.

Optionally, the length of the hard thread sleeve is smaller than that of the screw hole.

Through adopting above-mentioned technical scheme, bolt and friction disc junction include stereoplasm thread bush and the screw that the diameter is less than screw rod length on the bolt, and the screw cooperation stereoplasm thread bush can increase the compactness of bolt and friction disc to increase the steadiness of friction disc and braking plate.

Optionally, one side, far away from the friction plate, of the brake plate is provided with an integrally formed horizontal bent plate, one side, far away from the brake plate, of the horizontal bent plate is provided with an integrally formed vertical bent plate, and rib plates are arranged between the brake plate and the vertical bent plate and between the horizontal bent plates.

Through adopting above-mentioned technical scheme, be provided with the floor between brake plate and vertical bent plate and the horizontal bent plate, the floor can support whole brake shoe to make the brake shoe firmer.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the friction plate can be conveniently and quickly assembled and disassembled from the brake plate through the matching of the grooves and the raised lines;

2. the brake plate and the friction plate are fixedly connected through the bolts, so that the tight connection between the brake plate and the friction plate can be enhanced, and the safety accident caused by the fact that the friction plate and the brake plate are not tightly connected during braking is avoided;

3. the hard thread sleeves are arranged at the positions, corresponding to the screw holes, of the friction plates, so that the tight connection between the bolts and the friction plates is increased, and the stability of the brake plate and the friction plates is further improved.

Drawings

Fig. 1 is a schematic structural diagram of a brake shoe according to an embodiment of the present application.

FIG. 2 is a schematic view of the construction of the salient friction plate of FIG. 1.

Fig. 3 is a schematic view of the structure of the hard projecting thread bush of fig. 2.

Description of reference numerals: 1. a stopper; 11. a brake plate; 111. a convex strip; 112. a bolt; 12. horizontally bending the plate; 13. vertically bending the plate; 14. a rib plate; 2. a friction plate; 21. a groove; 22. a screw hole; 23. a hard thread bush; 231. and (5) embedding rings.

Detailed Description

The present application is described in further detail below with reference to fig. 1.

The embodiment of the application discloses a brake shoe.

Referring to fig. 1, a brake shoe includes a brake member 1 and a friction plate 2. The braking member 1 includes a braking plate 11, a horizontal bent plate 12, a vertical bent plate 13, and a rib plate 14. The brake plate 11 is of a long arc structure, the horizontal bent plate 12 is horizontally fixed on the lower side of the brake plate 11, the bending track of the horizontal bent plate 12 is the same as that of the brake plate 11, the vertical bent plate 13 is vertically fixed on one side, far away from the brake plate 11, of the horizontal bent plate 12, and the bending track of the vertical bent plate 13 is the same as that of the horizontal bent plate 12. The four rib plates 14 are integrally formed among the braking plate 11, the horizontal bending plate 12 and the vertical bending plate 13, are perpendicular to the horizontal bending plate 12, are uniformly arranged along the length direction of the horizontal bending plate 12, and can support the braking part 1.

Referring to fig. 1 and 2, the friction plate 2 is connected to one side of the brake plate 11, which is far away from the horizontal bent plate 12, the bending track of the friction plate 2 is the same as that of the brake plate 11, a connecting structure is arranged between the brake plate 11 and the friction plate 2, the connecting structure comprises a convex strip 111 and a groove 21, the convex strip 111 is provided with two strips which are all long, the two strips are uniformly fixed to one side of the brake plate 11, which is far away from the horizontal bent plate 12, along the length direction of the brake plate 11, the length direction of the convex strip 111 is the same as the width direction of the brake plate 11, and one end of the length direction of the convex strip 111 is flush with any side wall of the brake plate 11 in the length direction; the groove 21 is arranged at the position of the friction plate 2 corresponding to the protruding strip 111, the length of the groove 21 is smaller than that of the friction plate 2, the protruding strip 111 can be inserted into the groove 21 along the length direction of the groove 21, and the cross sections of the groove 21 and the protruding strip 111 are both in a dovetail shape, so that the friction plate 2 can be conveniently assembled and disassembled from the brake plate 11.

Referring to fig. 2-3, in order to further enhance the connection between the brake plate 11 (refer to fig. 1) and the friction plate 2, two screw holes 22 are uniformly formed on one side of the friction plate 2 close to the brake plate 11 along the length direction of the friction plate 2, a hard threaded sleeve 23 is arranged on the position of the friction plate 2 corresponding to the screw holes 22 and far away from the brake plate 11, the hard threaded sleeve 23 and the screw holes 22 are coaxially arranged, a layer of insert ring 231 is integrally formed on the outer peripheral surface of the hard threaded sleeve 23, a plurality of racks are integrally formed on one side of the hard threaded sleeve 23 corresponding to the insert ring 231 by taking the axis of the hard threaded sleeve 23 as the center, the insert ring 231 can more stably embed the hard threaded sleeve 23 into the friction plate 2, the length of the hard threaded sleeve 23 is smaller than that of the screw hole 22, the aperture of the screw hole 22 is smaller than the diameter of the screw rod of the bolt 112, two bolts 112 are inserted in the positions of the brake plate 11 corresponding to the screw holes 22, the bolts 112 can be threadedly connected to the screw holes 22, the hard threaded sleeve 23 is matched with the threaded hole 22, so that the bolt 112 can be tightly fixed in the friction plate 2, and the tight connection between the friction plate 2 and the brake plate 11 is enhanced.

The implementation principle of the brake shoe in the embodiment of the application is as follows: when a friction plate 2 in a brake shoe needs to be replaced, the brake drum is firstly opened, the brake shoe is taken down from the brake drum, then the bolt 112 is rotated to take down the bolt 112, then the friction plate 2 is taken down along the length direction of the groove 21, after the worn friction plate 2 is taken down, the groove 21 on the new friction plate 2 is aligned with the raised line 111 on the brake plate 11, then the friction plate 2 slides along the length direction of the groove 21 until the friction plate 2 is tightly connected with the brake plate 11, then the brake plate 11 and the friction plate 2 are reinforced by screwing the bolt 112, and finally the friction plate 2 can be replaced by fixing the brake shoe in the brake drum.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A brake shoe, comprising:

a brake plate (11) which is arc-shaped along the length direction thereof;

friction disc (2), set up in brake plate (11) one side, the length direction of friction disc (2) with brake plate (11) length direction is the same, brake plate (11) with be provided with connection structure between friction disc (2), connection structure includes:

the groove (21) is formed in one side of the friction plate (2), the open end of the groove (21) is smaller than the bottom end of the groove (21), and the length direction of the groove (21) is the same as the width direction of the friction plate (2);

the protruding strip (111) is fixed in brake plate (11) one side, protruding strip (111) length direction with brake plate (11) width direction is the same, protruding strip (111) can be followed recess (21) length direction and inserted and locate recess (21).

2. A brake shoe according to claim 1 wherein:

the length of the groove (21) is smaller than the width of the friction plate (2).

3. A brake shoe according to claim 2 wherein:

the friction plate (2) is connected to the brake plate (11) through bolts (112).

4. A brake shoe according to claim 3 wherein:

a screw hole (22) is formed in one side, close to the brake plate (11), of the friction plate (2), and a bolt (112) which is connected with the screw hole (22) in a threaded mode is arranged in the position, corresponding to the screw hole (22), of the brake plate (11) in a penetrating mode;

the diameter of the screw hole (22) is smaller than the diameter of a screw rod of the bolt (112).

5. A brake shoe according to claim 4 wherein:

the friction plate (2) is provided with a hard threaded sleeve (23) corresponding to the position of the screw hole (22), the hard threaded sleeve (23) and the screw hole (22) are coaxially arranged, and the bolt (112) can be in threaded connection with the hard threaded sleeve (23).

6. A brake shoe according to claim 5 wherein:

the outer peripheral surface of the hard threaded sleeve (23) is fixed with a ring (231), and the ring (231) can be embedded in the friction plate (2).

7. A brake shoe according to claim 6 wherein:

the length of the hard thread sleeve (23) is smaller than that of the screw hole (22).

8. A brake shoe according to any one of claims 1 to 7 wherein:

keep away from brake block (11) friction disc (2) one side is provided with integrated into one piece's horizontal bent plate (12), horizontal bent plate (12) are kept away from one side of brake block (11) is provided with integrated into one piece's vertical bent plate (13), brake block (11) with vertical bent plate (13) and be provided with integrated into one piece's floor (14) between horizontal bent plate (12).