CN213575269U

CN213575269U - Motor vehicle brake disc and brake device

Info

Publication number: CN213575269U
Application number: CN202022625641.XU
Authority: CN
Inventors: 齐松龄; 殷建全; 王利铭
Original assignee: Puyang Changtong Special Purpose Vehicle Manufacturing Co ltd
Current assignee: Puyang Changtong Special Purpose Vehicle Manufacturing Co ltd
Priority date: 2020-11-13
Filing date: 2020-11-13
Publication date: 2021-06-29
Anticipated expiration: 2030-11-13

Abstract

The utility model provides a motor vehicle brake disc, which comprises a disc body, the both ends face of brake disc disk body runs through there is the centre bore, be equipped with the spiral helicine heat dissipation pore that extends from top to bottom around the centre bore in the disk body, the entrance point of heat dissipation pore, exit end correspond the centre bore of position and respectively are equipped with a ring channel on global, heat dissipation pore intercommunication ring channel, the utility model discloses still include motor vehicle brake equipment, brake disc and rather than normal running fit's axis of rotation, the axis of rotation includes the axis body, respectively is equipped with an axis body pore on the periphery wall of the axis body that corresponds with the entrance point of heat dissipation pore, exit end, is liquid pore and liquid pore respectively, go into liquid pore, liquid pore and run through and constitute with closed disk body cooling channel along the axial of axis body with the extrinsic cycle radiator, be equipped with cooling fluid. The brake disc aims at solving the problem that the radiating holes formed in the surface of the brake disc in the prior art are poor in radiating effect.

Description

Motor vehicle brake disc and brake device

Technical Field

The utility model relates to a brake equipment technical field especially relates to motor vehicle brake disc and brake equipment.

Background

The brake disc brake caliper clamps the brake disc to generate braking force, and when the brake is stepped, the brake disc is clamped by the brake disc brake caliper to play a role in reducing speed or stopping. The existing brake disc comprises an outer brake disc body and an exhaust sheet, and is provided with a heat dissipation channel, a plurality of heat dissipation holes are formed in the surface of the brake disc, air flow in the channel is small, air inflow of air vents formed in the surface of the brake disc is insufficient, the heat dissipation area is limited, and the heat dissipation efficiency is limited. Particularly, in a large-sized load-carrying vehicle, the temperature of the edge of the brake disc can rise rapidly due to the action of the brake on the edge of the brake disc because the inertia of the brake is large. When the temperature of the edge of the brake disc rises to a certain temperature, the brake heat fading phenomenon can occur when the motor vehicle brakes, and the brake effect is influenced. The brake disc in the prior art has poor heat dissipation effect, influences braking performance when braking for a long time, and has poor safety.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a motor vehicle brake disc and brake equipment aims at solving the louvre of seting up on the brake disc surface among the prior art, the poor problem of radiating effect.

In order to achieve the above object, the utility model adopts the following technical scheme:

a brake disc for a motor vehicle comprises a disc body, wherein central holes penetrate through two end faces of the disc body of the brake disc, spiral radiating channels which extend up and down and surround the central holes are arranged in the disc body, annular grooves are respectively arranged on the peripheral surfaces of the central holes at positions corresponding to the inlet end and the outlet end of each radiating channel, and the radiating channels are communicated with the annular grooves.

Preferably, the spiral diameter of the spiral heat dissipation pore canal is increased and then reduced along the axial direction of the disc body.

Preferably, both of said annular grooves have the same circumferential diameter.

Preferably, the pitch of the spiral heat dissipation channels is the same.

A motor vehicle brake device comprises the brake disc and a rotating shaft which is in running fit with the brake disc, wherein the rotating shaft comprises a shaft body, the peripheral walls of the shaft body, corresponding to the inlet end and the outlet end of a heat dissipation pore passage, are respectively provided with a pore passage, namely a liquid inlet pore passage and a liquid outlet pore passage, the liquid inlet pore passage and the liquid outlet pore passage penetrate through the shaft body in the axial direction and form a closed disc body cooling channel with an external circulation heat dissipation body, and cooling fluid is arranged in the disc body cooling channel.

Preferably, a sealing ring is arranged on the circumferential wall of the shaft body corresponding to the annular groove, and a sealing ring is arranged on the circumferential wall of the shaft body corresponding to the annular groove, so that fluid in the whole device is prevented from flowing out from the matched part of the disc body and the rotating shaft.

Preferably, the fluid comprises a liquid coolant or gas.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the utility model discloses be equipped with the spiral helicine heat dissipation pore that extends from top to bottom around the centre bore in the disk body, respectively be equipped with the pore on the circumference wall of the axis body that entrance point, the exit end of heat dissipation pore correspond, be income liquid pore and liquid outlet channel respectively, go into liquid pore, liquid outlet channel and run through and constitute with closed cooling channel with the extrinsic cycle radiator along the axial of axis body, be equipped with cooling fluid in the passageway. Circulation can pass through the interior of the disc body, and compared with the radiating holes formed in the surface of the disc body, the circulating fluid can take away heat in the brake disc more quickly, so that the radiating efficiency is greatly improved, the brake heat fading phenomenon of a motor vehicle during braking is avoided, and the brake effect is good; especially for high-load vehicles, the device has good high-temperature resistance and stable braking effect.

Furthermore, the spiral diameter of the spiral heat dissipation pore canal is increased and then reduced along the axial direction of the disc body, the spiral distance of the spiral through pore canal is the same, the spiral diameter is gradually increased, the contact surface of the spiral heat dissipation pore canal can be further improved under the condition that the thread pitch is not changed, and the heat conduction efficiency is high.

Drawings

Figure 1 is a front view of a specific embodiment of the disc body of the brake disc of the present invention;

figure 2 is a sectional view in the direction of a-a in a front view of a particular embodiment of a disc body of a brake disc according to the present invention;

figure 3 is a top view of a specific embodiment of the disc body of the brake disc of the present invention;

fig. 4 is a perspective view 1 of an embodiment of the heat dissipating channel of the present invention;

fig. 5 is a perspective view 2 of an embodiment of the heat dissipating channel of the present invention;

figure 6 is a perspective view of a heat dissipation channel of a specific embodiment of a disc body of a brake disc of the present invention;

fig. 7 is an exploded view of an embodiment of the brake apparatus of the present invention;

fig. 8 is a front view of a specific embodiment of the rotating shaft of the present invention;

fig. 9 is a sectional view of an embodiment of a rotating shaft according to the present invention taken along plane F-F.

In the figure: 1. the brake disc comprises a brake disc, 11 heat dissipation pore canals, 12 annular grooves, 13 disc bodies, 14 and a central hole; 2. the rotating shaft 21, the shaft body 22, the liquid inlet channel 23 and the liquid outlet channel 23.

Best mode for carrying out the invention

The following describes embodiments of the present invention with reference to the accompanying drawings.

The utility model discloses motor vehicle brake disc's embodiment, as shown in fig. 1 to 5, brake disc disk body 13's both ends face runs through there is centre bore 14, be equipped with spiral helicine heat dissipation pore 11 that extends from top to bottom around the centre bore in the disk body, respectively be equipped with an annular groove 12 on the position disk body that the entrance point of heat dissipation pore, exit end correspond, heat dissipation pore 11 intercommunication annular groove 12.

A motor vehicle brake device comprises the brake disc and a rotating shaft 2 which is in rotating fit with the brake disc as shown in figures 7 to 9, wherein the brake disc comprises a shaft body 21, pore channels are respectively arranged on the circumferential wall of the shaft body corresponding to the inlet end and the outlet end of a radiating pore channel at the inlet end, namely a liquid inlet pore channel and a liquid outlet pore channel, the liquid inlet pore channel 22 and the liquid outlet pore channel 23 penetrate through the shaft body 21 in the axial direction and form a closed cooling channel with an external circulating radiating body, and the cooling liquid which can be recycled is arranged in the cooling channel and can be used as water. Fluid can form the inside that the cooling circulation passageway can flow through the disk body at brake disc 1, axis of rotation 2 and extrinsic cycle radiator, for seting up the radiating air hole on the disk body surface, the inside heat of brake disc can be taken away more rapidly to the circulating coolant liquid, has improved radiating efficiency greatly to avoid the motor vehicle can appear the brake heat decline phenomenon when the braking, brake effectually. Especially, the high-temperature resistance performance is good when the load is high, and the braking effect is stable.

In this embodiment, as shown in fig. 6, the spiral diameter of the spiral heat dissipation duct 11 increases first and then decreases along the axial direction of the disc body, the spiral distances of the spiral through ducts are the same, and the two annular grooves have the same circumferential diameter, which is beneficial to ensuring the temperature uniformity of the entire brake disc, and the disc body is not easily deformed.

In this embodiment, a sealing ring is disposed on the circumferential wall of the shaft body corresponding to the annular groove to prevent fluid in the entire device from flowing out from the matching portion of the disc body and the rotating shaft, so as to ensure that the cooling liquid can be recycled.

The utility model discloses a theory of operation and working process as follows: the heat dissipation of the brake disc body is accelerated by a closed cooling channel formed by the spiral heat dissipation pore canal 11 which is arranged on the disc body and extends up and down and surrounds the central hole, the rotating shaft 2 and the external circulation heat dissipation body.

In other embodiments, the fluid may also be engine coolant or through air.

Claims

1. The utility model provides a motor vehicle brake disc, includes disk body, its characterized in that: two end faces of the brake disc body penetrate through central holes, spiral radiating channels which extend up and down and surround the central holes are arranged in the brake disc body, annular grooves are respectively arranged on the peripheral surfaces of the central holes at positions corresponding to the inlet end and the outlet end of each radiating channel, and the radiating channels are communicated with the annular grooves.

2. The automotive brake disc of claim 1, wherein: the spiral diameter of the spiral heat dissipation pore canal is increased and then reduced along the axial direction of the disc body.

3. The automotive brake disc of claim 1, wherein: the two annular grooves have the same circumferential diameter.

4. Motor vehicle brake disc according to any one of claims 1 to 3, characterized in that: the spiral distances of the spiral heat dissipation pore canals are the same.

5. A motor vehicle brake apparatus characterized by: the brake disc of claim 1 and a rotating shaft rotatably engaged therewith, wherein the rotating shaft includes a shaft body, and a shaft body hole, which is a liquid inlet hole and a liquid outlet hole, is formed in the outer peripheral wall of the shaft body corresponding to the inlet end and the outlet end of the heat dissipating hole, respectively, and the liquid inlet hole and the liquid outlet hole penetrate through the shaft body in the axial direction and form a closed disc body cooling channel with the external circulation heat sink, and a cooling fluid is provided in the disc body cooling channel.

6. The brake apparatus for a motor vehicle according to claim 5, wherein: and a sealing ring is arranged on the circumferential wall of the shaft body corresponding to the annular groove so as to prevent fluid in the whole device from flowing out from the matched part of the disc body and the rotating shaft.

7. The brake apparatus for a motor vehicle according to claim 5, wherein: the fluid comprises a cooling liquid or a cooling gas.