CN213176565U - Brake drum with auxiliary heat dissipation structure - Google Patents
Brake drum with auxiliary heat dissipation structure Download PDFInfo
- Publication number
- CN213176565U CN213176565U CN202021810087.6U CN202021810087U CN213176565U CN 213176565 U CN213176565 U CN 213176565U CN 202021810087 U CN202021810087 U CN 202021810087U CN 213176565 U CN213176565 U CN 213176565U
- Authority
- CN
- China
- Prior art keywords
- brake
- brake drum
- brake shoe
- heat dissipation
- fixedly connected
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000017525 heat dissipation Effects 0.000 title claims abstract description 27
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 60
- 239000007788 liquid Substances 0.000 claims abstract description 29
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 29
- 238000002347 injection Methods 0.000 claims abstract description 25
- 239000007924 injection Substances 0.000 claims abstract description 25
- 229910001018 Cast iron Inorganic materials 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 230000005855 radiation Effects 0.000 claims description 5
- 230000001788 irregular Effects 0.000 claims description 3
- 238000003466 welding Methods 0.000 abstract description 5
- 229910001873 dinitrogen Inorganic materials 0.000 abstract description 2
- 238000005507 spraying Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
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- Braking Arrangements (AREA)
Abstract
The utility model discloses a brake drum with auxiliary heat dissipation structure, including brake drum casing and brake shoe, four heat dissipation pipelines have been seted up to the inner wall of brake drum casing, friction facing has all been welded to the one side that the brake shoe kept away from each other, perpendicular hole has all been seted up at brake shoe and friction facing middle part, the equal fixedly connected with liquid nitrogen injection apparatus of one side inner wall that the brake shoe is close to each other, two mounts have been welded in the front of brake drum casing, the one side that the mount was kept away from each other fixedly connected with runs through and extends to the liquid nitrogen injection apparatus switch in the perpendicular hole, both ends that the brake shoe is close to each other one side all fixedly connected with brake wheel cylinder, the inner wall welding of one side that the brake shoe is close to each other has the connecting plate, and the device reduces the temperature of brake drum inner wall through spraying nitrogen gas when the car brakes, reduces the inside, thereby eliminating the expansion stress and prolonging the service life of the brake drum.
Description
Technical Field
The utility model relates to an automobile manufacturing field especially relates to a brake drum with supplementary heat radiation structure.
Background
A brake drum is one of the important components of a vehicle, and is widely used at present, wherein the brake drum comprises a brake drum and a brake shoe, and a friction lining on the brake shoe can be contacted with the inner side surface of the brake drum. The brake drum is in a rotating state in the driving process of the automobile, and when the automobile is braked, the friction lining on the brake shoe and the brake drum are extruded to generate friction force, so that the driving automobile is decelerated or stopped, and the driving safety is ensured.
However, continuous braking is required in the processes of high-speed running and long downhill running, the temperature of the inner wall of the brake drum rapidly rises at this time, the temperature difference between the inside and the outside of the drum body becomes large, the temperature difference stress is large, and the expansion stress generated by the expansion stress cannot be eliminated in time, so that the longitudinal microcrack of the brake drum body develops into a crack and finally the crack is caused, and the service life of the brake drum is short.
SUMMERY OF THE UTILITY MODEL
Objects of the invention
For solving the technical problem who exists among the background art, the utility model provides a brake drum with supplementary heat radiation structure, the device is when the automobile brake, through spraying nitrogen gas, reduces the temperature of brake drum inner wall, reduces the inside and outside difference in temperature of brake drum to eliminate expansion stress, prolong the life of brake drum.
(II) technical scheme
The utility model provides a brake drum with supplementary heat radiation structure, including brake drum casing and brake shoe, four heat dissipation pipeline have been seted up to the inner wall of brake drum casing, the friction facing has all been welded to one side that the brake shoe kept away from each other, perpendicular hole has all been seted up at brake shoe and friction facing middle part, the equal fixedly connected with liquid nitrogen injection apparatus of one side inner wall that the brake shoe is close to each other, the positive welding of brake drum casing has two mounts, one side fixedly connected with that the mount was kept away from each other runs through and extends to the downthehole liquid nitrogen injection apparatus switch in perpendicular hole, the equal fixedly connected with brake wheel cylinder in both ends that the brake shoe is close to one side each other, the one side inner wall welding that the brake shoe is close to each other has the connecting plate, one side fixedly connected with return spring that the.
Preferably, the switch of the liquid nitrogen injection device is fixedly connected to the fixing frame through a bolt, the brake wheel cylinder is fixedly connected to the brake shoe through a bolt, and the liquid nitrogen injection device is fixedly connected to the inner wall of the brake shoe through a bolt.
Preferably, the size of the top hole on one side, far away from each other, of the vertical inner hole is consistent with the size of the air inlet hole of the heat dissipation pipeline, and the interior of the heat dissipation pipeline is in an irregular thread shape.
Preferably, the brake drum with the auxiliary heat dissipation structure is characterized in that the model of the brake wheel cylinder is QCT77-1993, and the brake shoe is made of cast iron.
Preferably, the friction lining is made of cast iron, and the shape of the friction lining is a circular arc.
Preferably, the material of the brake drum shell is HT200-300, and the wall thickness of the brake drum shell is ten to twenty millimeters.
Compared with the prior art, the above technical scheme of the utility model following profitable technological effect has:
the utility model discloses in the use, through the heat dissipation pipeline, liquid nitrogen injection apparatus switch, the friction lining, the brake shoe, brake wheel cylinder isotructure, wherein drive the brake wheel cylinder extension, the brake wheel cylinder promotes the brake shoe from top to bottom, the friction lining that drives at brake shoe top and low side outer wall removes to the brake drum inner wall, the brake shoe drives liquid nitrogen injection apparatus simultaneously and moves to keeping away from the direction each other, because liquid nitrogen injection apparatus switch is fixed on the mount, keep one end motionless, at this moment liquid nitrogen injection apparatus opening is opened, liquid nitrogen injection apparatus will begin to spray the liquid nitrogen to perpendicular hole. The temperature of the inner wall of the brake drum is reduced, and the temperature difference between the inside and the outside of the brake drum is reduced, so that the expansion stress is eliminated, and the service life of the brake drum is prolonged.
Drawings
Fig. 1 is a schematic structural diagram of an interior front view of a brake drum with an auxiliary heat dissipation structure according to the present invention.
Fig. 2 is a schematic structural diagram of the working principle of the brake drum with the auxiliary heat dissipation structure according to the present invention.
Fig. 3 is a schematic structural view of a brake drum shell of the brake drum with an auxiliary heat dissipation structure according to the present invention.
Reference numerals: 1. a brake drum housing; 2. a heat dissipation pipe; 3. a return spring; 4. a fixed mount; 5. a liquid nitrogen injection device switch; 6. a liquid nitrogen injection device; 7. a friction lining; 8. a brake shoe; 9. a brake wheel cylinder; 10. a connecting plate; 11. perpendicular to the inner bore.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
As shown in fig. 1-3, the utility model provides a brake drum with supplementary heat radiation structure, including brake drum casing 1 and brake shoe 8, four heat dissipation pipeline 2 have been seted up to the inner wall of brake drum casing 1, friction lining 7 has all been welded to one side that brake shoe 8 kept away from each other, perpendicular hole 11 has all been seted up at brake shoe 8 and friction lining 7 middle part, the equal fixedly connected with liquid nitrogen injection apparatus 6 of one side inner wall that brake shoe 8 was close to each other, the front welding of brake drum casing 1 has two mounts 4, one side fixedly connected with that mount 4 was kept away from each other runs through and extends to the liquid nitrogen injection apparatus switch 5 in the perpendicular hole 11, the equal fixedly connected with return wheel cylinder 9 in both ends that brake shoe 8 was close to one side each other, the welding of one side inner wall that brake shoe 8 was close to each other has connecting plate 10, one side fixedly connected with spring 3 that connecting plate 10.
Liquid nitrogen injection apparatus switch 5 passes through bolt fixed connection on mount 4, brake cylinder 9 passes through bolt fixed connection on brake shoe 8, liquid nitrogen injection apparatus 6 passes through bolt fixed connection on brake shoe 8's inner wall, and the size of the top hole of the one side of keeping away from each other perpendicular hole 11 is unanimous with the size of the inlet port of heat dissipation pipeline 2, the inside of heat dissipation pipeline 2 is irregular screw thread shape, and brake cylinder 9's model is QCT77-1993, brake shoe 8's material is cast iron, and friction lining 7's material is cast iron, friction lining 7's shape is the circular arc, and brake drum casing 1's material is HT200-300, the wall thickness of brake drum casing 1 is ten to twenty millimeters.
In the utility model, in the using process, the driver drives the brake wheel cylinder 9 to extend by stepping on the brake, the brake wheel cylinder 9 pushes the brake shoe 8 downwards, the friction lining 7 on the top end of the brake shoe 8 and the outer wall of the low end is driven to move towards the inner wall of the brake drum, and the friction lining 7 is contacted with the inner wall of the brake drum to generate friction force, so that the automobile speed is reduced, the brake shoe 8 simultaneously drives the liquid nitrogen injection device 6 to move towards the direction away from each other, because the liquid nitrogen injection device switch 5 is fixed on the fixing frame 4, one end is kept still, at the moment, the opening of the liquid nitrogen injection device 6 is opened, the liquid nitrogen injection device 6 starts to inject liquid nitrogen towards the vertical inner hole 11, because the brake drum shell 1 is rotary, when the openings of the vertical inner hole 11 and the heat dissipation pipeline 2 are coincided, the liquid nitrogen enters the heat dissipation pipeline 2, at the brake drum temperature, liquid nitrogen can flow out of the heat dissipation pipeline 2 partially, the temperature of the inner cavity of the brake drum can be reduced, and when the brake is released, the return spring 3 pulls the brake shoe 8 back to the original position to wait for the next brake. The device is convenient to use, and the practicality is strong, is fit for extensively promoting.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such changes and modifications that fall within the scope and bounds of the appended claims, or equivalents of such scope and bounds.
Claims (6)
1. The utility model provides a brake drum with supplementary heat radiation structure, includes brake drum casing (1) and brake shoe (8), its characterized in that, four heat dissipation pipeline (2) have been seted up to the inner wall of brake drum casing (1), friction lining (7) have all been welded to one side that brake shoe (8) kept away from each other, perpendicular hole (11) have all been seted up at brake shoe (8) and friction lining (7) middle part, the equal fixedly connected with liquid nitrogen injection apparatus (6) of one side inner wall that brake shoe (8) are close to each other, two mount (4) have been welded in the front of brake drum casing (1), one side fixedly connected with that mount (4) keep away from each other runs through and extends to liquid nitrogen injection apparatus switch (5) in perpendicular hole (11), the equal fixedly connected with brake wheel cylinder (9) in both ends that brake shoe (8) are close to one side each other, the brake shoe is characterized in that a connecting plate (10) is welded on the inner wall of one side, close to each other, of the brake shoe (8), and a return spring (3) is fixedly connected to one side, close to each other, of the connecting plate (10).
2. The brake drum with the auxiliary heat dissipation structure as recited in claim 1, wherein the liquid nitrogen injection device switch (5) is fixedly connected to the fixed frame (4) through a bolt, the brake wheel cylinder (9) is fixedly connected to the brake shoe (8) through a bolt, and the liquid nitrogen injection device (6) is fixedly connected to the inner wall of the brake shoe (8) through a bolt.
3. The brake drum with the auxiliary heat dissipation structure as recited in claim 1, wherein the size of the top hole of the side where the vertical inner holes (11) are far away from each other is the same as the size of the air intake hole of the heat dissipation pipe (2), and the inside of the heat dissipation pipe (2) is in the shape of irregular screw thread.
4. The brake drum with the auxiliary heat dissipation structure as recited in claim 1, wherein the brake wheel cylinder (9) is of model QCT77-1993, and the brake shoe (8) is made of cast iron.
5. A brake drum having a structure for assisting heat dissipation according to claim 1, wherein the material of the friction lining (7) is cast iron, and the shape of the friction lining (7) is a circular arc.
6. The brake drum with the auxiliary heat dissipation structure as recited in claim 1, wherein the material of the brake drum shell (1) is HT200-300, and the wall thickness of the brake drum shell (1) is ten to twenty millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021810087.6U CN213176565U (en) | 2020-08-26 | 2020-08-26 | Brake drum with auxiliary heat dissipation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021810087.6U CN213176565U (en) | 2020-08-26 | 2020-08-26 | Brake drum with auxiliary heat dissipation structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213176565U true CN213176565U (en) | 2021-05-11 |
Family
ID=75767769
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021810087.6U Expired - Fee Related CN213176565U (en) | 2020-08-26 | 2020-08-26 | Brake drum with auxiliary heat dissipation structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213176565U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113357294A (en) * | 2021-08-09 | 2021-09-07 | 徐州铭尊机电有限公司 | Electric vehicle drum brake |
-
2020
- 2020-08-26 CN CN202021810087.6U patent/CN213176565U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113357294A (en) * | 2021-08-09 | 2021-09-07 | 徐州铭尊机电有限公司 | Electric vehicle drum brake |
| CN113357294B (en) * | 2021-08-09 | 2021-10-15 | 徐州铭尊机电有限公司 | Electric vehicle drum brake |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210511 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |