CN214118805U

CN214118805U - Suspension brake hub

Info

Publication number: CN214118805U
Application number: CN202023041997.5U
Authority: CN
Inventors: 宋广锡; 苏援农
Original assignee: Xuzhou Shunjiu Locomotive Technology Co ltd
Current assignee: Xuzhou Shunjiu Locomotive Technology Co ltd
Priority date: 2020-12-16
Filing date: 2020-12-16
Publication date: 2021-09-03
Anticipated expiration: 2030-12-16

Abstract

The utility model discloses a suspension brake hub, which is of a split structure and comprises a drum brake pot contacted with a brake shoe and a drum brake disc matched with a half shaft, wherein the drum brake disc is detachably connected with the drum brake pot; when the drum brake pot and the drum brake disc are connected together for braking, the drum brake pot can float in position relative to the drum brake disc. The utility model discloses a detachable connection mode of split type structure, and then improve the structure and make installation convenience, simultaneously through this kind of split type structure for the drum is stopped the pot and is stopped the dish for the drum and have certain floating distance, has also improved the brake effect.

Description

Suspension brake hub

Technical Field

The utility model relates to a technical field that the drum was stopped specifically is a hub is stopped in suspension.

Background

In the field of tricycles (electric tricycles or motor tricycles and the like), brakes adopted by a rear axle of the tricycle are basically drum brake structures, a brake hub of the existing drum brake is a forged and rolled piece with an integral structure, when the existing drum brake is actually manufactured and installed, the processes of vehicle pin, hot melting, welding, reprocessing and the like are needed, and certain trouble exists in manufacturing, installation and subsequent replacement, so that a split type brake hub is provided, and convenience and cost are greatly improved through a mode of direct assembly after one-time processing and forming.

SUMMERY OF THE UTILITY MODEL

The technique that exists is not enough to the aforesaid, the utility model aims at providing a hub is stopped in suspension, and it adopts split type structure's the connected mode of dismantling, and then improves the structure and makes the installation convenience, simultaneously through this kind of split type structure for the drum is stopped the pot and is stopped the dish and have certain floating distance for the drum, has also improved the brake effect.

In order to solve the technical problem, the utility model adopts the following technical scheme:

the utility model provides a suspension brake hub, which is of a split structure and comprises a drum brake pot contacted with a brake shoe and a drum brake disc matched with a half shaft, wherein the drum brake disc is detachably connected with the drum brake pot;

when the drum brake pot and the drum brake disc are connected together for braking, the drum brake pot can float in position relative to the drum brake disc.

Preferably, the center of the drum brake disc is provided with a flange with a cylindrical structure, the center of the drum brake pot is provided with a first through hole matched with the flange, and the first through hole is in clearance fit with the flange.

Preferably, a plurality of first connecting holes are formed in the drum brake pot, a plurality of second connecting holes corresponding to the first connecting holes are formed in the drum brake disc, and the drum brake pot is connected together through bolts installed in the first connecting holes and the second connecting holes.

Preferably, the outer diameter of the bolt at the contact position with the second connecting hole is the same as the inner diameter of the second connecting hole, and the bolt is in clearance fit with the first connecting hole.

Preferably, when any two first connecting holes are coaxial with the corresponding two second connecting holes, the rest of the first connecting holes are also coaxial with the rest of the second connecting holes.

Preferably, a second through hole matched with the half shaft is formed in the center of the drum brake disc, the second through hole is a taper hole, and a conical surface matched with the inner wall of the taper hole is arranged on the corresponding half shaft.

Preferably, a key groove is formed in the inner wall of the second through hole, a key groove is also formed in the corresponding half shaft, the second through hole of the drum brake disc is abutted against the conical surface of the half shaft, and the drum brake disc is connected with the half shaft through a key to realize synchronous rotation.

Preferably, a reinforcing protrusion is arranged on the surface of one side, close to the drum brake disc, of the drum brake pot.

Preferably, one side of the drum brake disc far away from the drum brake pot is provided with a plurality of reinforcing ribs.

The beneficial effects of the utility model reside in that:

the utility model adopts the detachable connection mode of the split structure, two parts can be processed and formed at one time during the actual manufacturing, and then the two parts are directly assembled with the rear axle, thereby greatly reducing the manufacturing cost and improving the convenience of installation and replacement; simultaneously through this kind of split type structure for the drum is stopped the pot and is stopped the dish for the drum and have certain floating distance, makes when the brake, and the drum is stopped the dish and can be compensated installation error, makes the drum stop dish bigger with the friction disk area of contact on the brake shoe, thereby improves the brake effect.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of a suspension brake hub provided in an embodiment of the present invention;

FIG. 2 is a plan view of the drum brake pot;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;

FIG. 4 is a plan view of the drum brake disc;

FIG. 5 is a cross-sectional view taken along line B-B of FIG. 4;

FIG. 6 is a schematic view of the suspension brake hub engaged with a half shaft.

Description of reference numerals:

1-drum brake pan, 11-first through hole, 12-first connecting hole, 13-reinforcing protrusion, 2-drum brake disc, 21-flange, 22-second through hole, 23-second connecting hole, 24-reinforcing rib, 3-half shaft, 4-brake shoe and 5-bolt.

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.

Example (b):

as shown in fig. 6, the utility model provides a suspension brake hub, which is a split structure and comprises a drum brake pot 1 contacting with a brake shoe 4 and a drum brake disc 2 matched with a half shaft 3, wherein the drum brake disc 2 is detachably connected with the drum brake pot 1;

when the drum brake pot 1 and the drum brake disc 2 are connected together for braking, the drum brake pot 1 can float in position relative to the drum brake disc 2; specifically, the method comprises the following steps:

a flange 21 with a cylindrical structure is arranged at the center of the drum brake disc 2, a first through hole 11 matched with the flange 21 is formed in the center of the drum brake pot 1, and the first through hole 11 is in clearance fit with the flange 21; the drum brake pot 1 is provided with a plurality of first connecting holes 12, the drum brake disc 2 is provided with a plurality of second connecting holes 23 corresponding to the first connecting holes 12, and the drum brake pot 1 is connected together through bolts 5 arranged in the first connecting holes 12 and the second connecting holes 23; the outer diameter of the contact position of the bolt 5 and the second connecting hole 23 is the same as the inner diameter of the second connecting hole 23, and the bolt 5 is in clearance fit with the first connecting hole 12; as shown in fig. 3 and 5:

in fig. 3, the first through hole 11 has an upper offset of 0.05mm and in fig. 5 the flange 21 has a lower offset of 0.1mm, so that there is some clearance when the two are fitted nested together;

meanwhile, since the drum brake disc 2 and the drum brake pot 1 are detached and connected by the bolt 5, in order to ensure that the drum brake disc and the drum brake pot can float, the bolt 5 is also required to be in clearance fit with the first connection hole 12, and meanwhile, in order to improve the stability of a wheel (the wheel is fixed on the bolt 5), the outer diameter of the contact position of the bolt 5 and the second connection hole 23 is the same as the inner diameter of the second connection hole 23, that is, as shown in fig. 6, the bolt 5 needs to be attached to the second connection hole 23 and needs to have a clearance with the first connection hole 12, and the clearance is not smaller than the clearance between the first through hole 11 and the flange 21.

Here, as for the gap formed by the bolt 5 and the first connection hole 12, there are two ways to form:

one is that the inner diameter of the first connection hole 12 is the same as the inner diameter of the second connection hole 23, and the bolt 5 has two sizes of outer diameters, one large and the other small, i.e. the bolt 5 structure shown in fig. 6;

secondly, the inner diameter of the first connection hole 12 is larger than that of the second connection hole 23, and the bolt 5 may have only one outer diameter or two outer diameters of one size and one size, and when the two outer diameters of one size and one size are larger, the smaller inner diameter portion corresponds to the first connection hole 12.

Further, in order to improve the mounting effect, when any two first connection holes 12 are coaxial with the two corresponding second connection holes 23, the remaining first connection holes 12 are also coaxial with the remaining second connection holes 23, that is, as shown in fig. 1, the four first connection holes 12 are respectively coaxial with the four second connection holes 23;

further, in order to improve the stability of the drum brake disc 2 and the half shaft 3, as shown in fig. 1 and 6, a second through hole 22 matched with the half shaft 3 is formed in the center of the drum brake disc 2, the second through hole 22 is a taper hole, and a taper surface matched with the inner wall of the taper hole 22 is arranged on the corresponding half shaft 3, so that the drum brake disc 2 and the half shaft 3 are matched more tightly, and the drum brake disc 2 is prevented from shaking caused by axial offset relative to the half shaft 3, as shown in fig. 6, the drum brake disc 2 is assembled on the half shaft 3 at the end of the half shaft 3 through a nut; meanwhile, in order to guarantee synchronous and effective transmission of the two, the inner wall of the second through hole 22 is provided with a key groove, the corresponding half shaft 3 is also provided with a key groove, the two are connected through a key, the second through hole 22 of the drum brake disc 2 is abutted against the conical surface of the half shaft 3, and the drum brake disc 2 is connected through a key to realize synchronous rotation with the half shaft 3.

Further, with reference to fig. 2, a reinforcing protrusion 13 is arranged on the surface of one side of the drum brake pot 1 close to the drum brake disc 2, and the protruding height of the reinforcing protrusion is not too large and is only 1-3 mm; with reference to fig. 4, a plurality of reinforcing ribs 24 are disposed on one side of the drum brake disc 2 away from the drum brake pan 1.

During the use, drum is stopped pot 1 and is stopped dish 2 and is dismantled through bolt 5 and be connected, combine figure 6, drum is stopped dish 2 and is assembled semi-axis 3 through the nut, and make the taper hole laminate with the conical surface, the key cooperates with the keyway, then further install the wheel on the bolt 5, through with bolt 5 complex nut with the wheel, drum is stopped pot 1 and drum and is stopped 2 three and link together, bolt 5 pastes tightly with the second connecting hole 23 that the dish 2 was stopped to the drum this moment, bolt 5 and drum are stopped and have the clearance between the first connecting hole 12 of pot 1, drum is stopped simultaneously and has the clearance between the flange 21 that the dish 2 was stopped to the first through-hole 11 of pot 1 and the drum, make drum stop pot 1 have a micro-scale distance of floating, when brake shoe 4 moves, it can utilize this kind of floating to make the friction disc on the brake shoe 4 and drum stop pot 1 contact surface bigger, the braking effect has been improved.

It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. A suspension brake hub is characterized by being of a split structure and comprising a drum brake pot contacted with a brake shoe and a drum brake disc matched with a half shaft, wherein the drum brake disc is detachably connected with the drum brake pot;

2. The suspension brake hub as claimed in claim 1, wherein a flange with a cylindrical structure is provided at the center of the drum brake disc, a first through hole matched with the flange is provided at the center of the drum brake pan, and the first through hole is in clearance fit with the flange.

3. The suspension brake hub of claim 1, wherein the drum brake pot has a plurality of first connection holes, the drum brake disc has a plurality of second connection holes corresponding to the first connection holes, and the drum brake pot is connected together by bolts installed in the first connection holes and the second connection holes.

4. The suspension brake hub as in claim 3, wherein the bolt has the same outer diameter at the contact position with the second connecting hole as the inner diameter of the second connecting hole, and the bolt is in clearance fit with the first connecting hole.

5. The suspension brake hub as in claim 4, wherein when any two first connecting holes are coaxial with the corresponding two second connecting holes, the remaining first connecting holes are also coaxial with the remaining second connecting holes.

6. The suspension brake hub according to claim 1, wherein a second through hole matched with the half shaft is formed in the center of the drum brake disc, the second through hole is a taper hole, and a taper surface matched with the inner wall of the taper hole is formed in the corresponding half shaft.

7. The suspension brake hub as claimed in claim 6, wherein the inner wall of the second through hole is provided with a key slot, the corresponding half shaft is also provided with a key slot, the second through hole of the drum brake disc is tightly propped against the conical surface of the half shaft, and the drum brake disc is connected with the half shaft through a key to realize synchronous rotation.

8. The suspension brake hub of claim 1, wherein a reinforcing protrusion is provided on a side surface of the drum brake pot adjacent to the drum brake disc.

9. The suspension brake hub of claim 1, wherein a plurality of ribs are disposed on a side of the drum brake disc away from the drum brake pot.