CN109654132B - Heat dissipation brake drum for automobile - Google Patents
Heat dissipation brake drum for automobile Download PDFInfo
- Publication number
- CN109654132B CN109654132B CN201811650049.6A CN201811650049A CN109654132B CN 109654132 B CN109654132 B CN 109654132B CN 201811650049 A CN201811650049 A CN 201811650049A CN 109654132 B CN109654132 B CN 109654132B
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- Prior art keywords
- brake
- heat dissipation
- heat
- connecting column
- brake drum
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D51/00—Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like
- F16D51/16—Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like shaped as brake-shoes pivoted on a fixed or nearly-fixed axis
- F16D51/18—Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like shaped as brake-shoes pivoted on a fixed or nearly-fixed axis with two brake-shoes
- F16D51/20—Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like shaped as brake-shoes pivoted on a fixed or nearly-fixed axis with two brake-shoes extending in opposite directions from their pivots
- F16D51/24—Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like shaped as brake-shoes pivoted on a fixed or nearly-fixed axis with two brake-shoes extending in opposite directions from their pivots fluid actuated
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/78—Features relating to cooling
- F16D65/82—Features relating to cooling for internally-engaging brakes
- F16D65/833—Features relating to cooling for internally-engaging brakes with closed cooling system
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2121/00—Type of actuator operation force
- F16D2121/02—Fluid pressure
- F16D2121/04—Fluid pressure acting on a piston-type actuator, e.g. for liquid pressure
Abstract
The invention relates to the technical field of automobile braking, in particular to a heat dissipation brake drum for an automobile. The auxiliary brake system is additionally arranged on the basis of the traditional drum brake and comprises a brake fluid driving device, an overflow valve and a heat dissipation pipeline, wherein the brake fluid driving device is arranged in a brake drum, the heat dissipation pipeline is arranged on an axle, and the overflow valve is connected in series with the heat dissipation pipeline. The brake fluid driving device comprises a hydraulic cylinder and a liquid pump, an external gear is arranged at the input end of the liquid pump, an internal gear is arranged in the hub body, when the brake is performed, the hydraulic cylinder of the brake fluid driving device pushes the liquid pump to move, the external gear is meshed with the internal gear to push the rotor of the liquid pump to rotate, so that liquid in the heat dissipation pipeline is driven to flow, the liquid can generate heat through the overflow valve, the generated heat is dissipated through the heat dissipation pipeline, and part of mechanical energy during braking is converted into heat energy generated outside the liquid.
Description
Technical Field
The invention relates to the technical field of automobile braking, in particular to a novel heat-dissipation brake drum for an automobile.
Background
At present, the mainstream brake technology in the field of automobile braking is drum brake and disc brake. The drum brake has the main structure that a brake hub rotating along with a wheel, a brake shoe and an actuating mechanism and the like are arranged on a brake base, the main brake principle is that the actuating mechanism pushes the brake shoe, a friction layer is arranged on the surface of the brake shoe, and the friction layer and the inner surface of the brake hub rub to brake. Due to continuous braking or overlarge braking force and other reasons, accidents are often caused by brake failure of the drum brake due to overhigh temperature, the drum brake is arranged in the brake hub due to friction, heat is not easy to dissipate, and the brake is easy to fail, and the heat dissipation performance of the disc brake is better than that of the drum brake due to the fact that the disc brake is exposed outside. And the friction of the drum brake is the contact friction of two solids, so that a friction body is easily lost, and the drum brake is frequently replaced.
Disclosure of Invention
The invention aims to solve the technical problem and provides a novel heat dissipation brake drum for an automobile, aiming at the technical defects, an auxiliary braking system is added on the basis of the traditional drum brake, the system comprises a brake fluid driving device, an overflow valve and a heat dissipation pipeline, wherein the brake fluid driving device is arranged in the brake drum, the heat dissipation pipeline is arranged on an axle, and the overflow valve is connected with the heat dissipation pipeline in series. The brake fluid driving device comprises a hydraulic cylinder and a liquid pump, an external gear is arranged at the input end of the liquid pump, an internal gear is arranged in the hub body, when the brake is performed, the hydraulic cylinder of the brake fluid driving device pushes the liquid pump to move, the external gear is meshed with the internal gear to push the rotor of the liquid pump to rotate, so that liquid in the heat dissipation pipeline is driven to flow, the liquid can generate heat through the overflow valve, the generated heat is dissipated through the heat dissipation pipeline, and part of mechanical energy during braking is converted into heat energy generated outside the liquid.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: the brake system comprises an axle, a brake drum, a brake fluid driving device, an overflow valve and a heat dissipation pipeline; the brake drums are arranged at the two ends of the axle; the brake fluid driving device is arranged in the brake drum; the heat dissipation pipeline is fixedly connected to the axle; the overflow valve is connected in series with the heat dissipation pipeline; the brake drum comprises a hub body, a brake base, a brake shoe, a first hydraulic cylinder and a return spring; the first hydraulic cylinder comprises a first cylinder body and a first piston; the brake fluid driving device comprises a bracket, a second hydraulic cylinder, a connecting rod, a moving seat and a liquid pump; the inlet and outlet of the liquid pump are provided with hoses; the heat dissipation pipeline is made of metal; two ends of the heat dissipation pipeline are respectively connected with an inlet hose and an outlet hose of the liquid pump; support and first cylinder body all fixed connection in brake base.
Further optimizing the technical scheme, one end of the bracket is provided with a sliding groove; the middle part of the bracket is provided with a hydraulic support; the sliding groove is provided with a first opening at one side of the hydraulic support; the middle part of the bracket is also provided with a first connecting column; the sliding groove is provided with a second opening at one side of the first connecting column; the second hydraulic cylinder comprises a second cylinder body and a second piston; the second cylinder body is fixedly connected to the hydraulic support; the outer end of the second piston is provided with a first connecting opening.
Further optimizing the technical scheme, the movable seat is provided with a sliding block; the bottom of the sliding block is provided with a second connecting open hole; a pump body support is arranged on one side of the sliding block; the bottom of the pump body support is provided with a second connecting column; the first connecting column and the second connecting column are connected through a return spring; the liquid pump is fixedly connected to the top of the pump body support; an external gear is arranged at the input shaft end of the liquid pump; an inner gear is arranged on the inner side of the hub body; the first connecting opening and the second connecting opening are respectively connected with two ends of the connecting rod in a rotating mode.
Further optimizing the technical scheme, the brake shoe is provided with a substrate; a friction layer is arranged on the outer side of the substrate; a rib plate is arranged in the middle of the base plate; a third connecting column is arranged in the middle of the rib plate; the bottom of the rib plate is provided with a rotating hole; the top of the rib plate is provided with a pushing plate; the end surface of the pushing plate is arc-shaped; a fourth connecting column is arranged in the middle of the brake base; the bottom of the brake base is provided with a rotating column.
The technical scheme is further optimized, and the brake shoe and the brake base are rotationally connected with the rotating column through the rotating hole; the third connecting column and the fourth connecting column are connected through a return spring.
Compared with the prior art, the invention has the following advantages: 1. mechanical energy during braking is converted into heat generated by liquid passing through the overflow valve, so that friction loss of the brake shoe is reduced; 2. the heat energy of the brake is dissipated outside the brake drum, so that the heat accumulation in the brake drum is reduced, and the brake safety is improved.
Drawings
Fig. 1 is a general assembly diagram of a novel heat-dissipating brake drum for an automobile.
Fig. 2 is a schematic structural diagram of a brake drum of a novel heat dissipation brake drum for an automobile.
Fig. 3 is a schematic view of an auxiliary braking principle of a novel heat dissipation brake drum for an automobile.
Fig. 4 is a schematic diagram of the driving and resetting principle of a brake fluid driving device of a novel heat dissipation brake drum for an automobile.
Fig. 5 is a schematic view of a movable seat of a novel heat-dissipating brake drum for an automobile.
In the figure: 1. an axle; 2. a brake drum; 201. a hub body; 202. a brake base; 203. a brake shoe; 204. a first hydraulic cylinder; 205. a return spring; 206. a first cylinder; 207. a first piston; 208. an internal gear; 209. a substrate; 210. a friction layer; 211. a rib plate; 212. a third connecting column; 213. rotating the hole; 214. a push plate; 215. a fourth connecting column; 216. rotating the column; 3. a brake fluid driving device; 301. a support; 302. a second hydraulic cylinder; 303. a connecting rod; 304. a movable seat; 305. a liquid pump; 306. an inlet and outlet hose; 307. a sliding groove; 308. a hydraulic support; 309. a first opening; 310. a first connecting column; 311. a second opening; 312. a second cylinder; 313. a second piston; 314. a first connection opening; 315. a slider; 316. a second connecting opening; 317. a pump body support; 318. a second connecting column; 319. an outer gear; 4. an overflow valve; 5. a heat dissipation pipeline.
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 further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary 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.
The first embodiment is as follows: with reference to fig. 1 to 5, a novel heat dissipation brake drum for an automobile is characterized in that: the brake system comprises an axle 1, a brake drum 2, a brake fluid driving device 3, an overflow valve 4 and a heat dissipation pipeline 5; the brake drums 2 are arranged at the two ends of the axle 1; the brake fluid driving device 3 is arranged in the brake drum 2; the heat dissipation pipeline 5 is fixedly connected to the axle 1; the overflow valve 4 is connected in series with the heat dissipation pipeline 5; the brake drum 2 comprises a hub body 201, a brake base 202, a brake shoe 203, a first hydraulic cylinder 204 and a return spring 205; the first hydraulic cylinder 204 includes a first cylinder 206 and a first piston 207; the brake fluid driving device 3 includes a bracket 301, a second hydraulic cylinder 302, a link 303, a moving seat 304, and a fluid pump 305; the inlet and outlet of the liquid pump 305 are provided with a hose 306; the heat dissipation pipeline 5 is made of metal; two ends of the heat radiation pipeline 5 are respectively connected with an inlet and outlet hose 306 of the liquid pump 305; the bracket 301 and the first cylinder 206 are both fixedly connected to the brake base 202; one end of the bracket 301 is provided with a sliding groove 307; a hydraulic support 308 is arranged in the middle of the bracket 301; the sliding groove 307 is provided with a first opening 309 on the hydraulic support 308 side; the middle part of the bracket 301 is also provided with a first connecting post 310; the sliding groove 307 is provided with a second opening 311 at one side of the first connecting column 310; the second hydraulic cylinder 302 includes a second cylinder body 312 and a second piston 313; the second cylinder 312 is fixedly connected to the hydraulic support 308; the outer end of the second piston 313 is provided with a first connection opening 314; the movable base 304 is provided with a sliding block 315; the bottom of the slider 315 is provided with a second connection opening 316; a pump body support 317 is arranged on one side of the sliding block 315; the bottom of the pump body support 317 is provided with a second connecting column 318; the first connecting post 310 and the second connecting post 318 are connected by a return spring 205; the liquid pump 305 is fixedly connected to the top of the pump body support 317; the input shaft end of the liquid pump 305 is provided with an external gear 319; an inner gear 208 is arranged on the inner side of the hub body 201; the first connection opening 314 and the second connection opening 316 are respectively rotatably connected with two ends of the connecting rod 303; the brake shoe 203 is provided with a substrate 209; a friction layer 210 is arranged on the outer side of the substrate 209; a rib plate 211 is arranged in the middle of the base plate 209; a third connecting column 212 is arranged in the middle of the rib plate 211; the bottom of the rib plate 211 is provided with a rotating hole 213; the top of the rib plate 211 is provided with a pushing plate 214; the end surface of the pushing plate 214 is arc-shaped; a fourth connecting column 215 is arranged in the middle of the brake base 202; the bottom of the brake base 202 is provided with a rotating column 216; the brake shoe 203 and the brake base 202 are rotatably connected through the rotating hole 213 and the rotating post 216; the third connecting post 212 and the fourth connecting post 215 are connected by a return spring 205.
In use, in the first step, as shown in fig. 1-2, during braking, an operator acts to drive the first hydraulic cylinder 204 to act, the first piston 207 pushes outwards, and the end surface of the first piston 207 contacts with the pushing plate 214, because the end surface of the pushing plate 214 is arc-shaped, the action is smooth, the brake shoe 203 is driven to rotate, and when the friction layer 210 contacts and is pressed against the inner side of the hub 201, friction braking is started to generate heat. The return spring 205 is used to cancel the return of the brake shoe 203 after the braking action.
Step two, as shown in fig. 1 to 5, when braking, the second piston 313 of the second hydraulic cylinder 302 is driven, the connecting rod 303 moves, and then the sliding block 315 is pushed, and the liquid pump 305 on the sliding block 315 is pushed. The inlet and outlet of the liquid pump 305 are provided with flexible tubes 306, because the liquid pump 305 is activated, only the flexible tubes 306 can be used, and hard tubes cannot be used. The heat dissipation pipeline 5 is made of metal, so that heat dissipation is facilitated. During braking, when the outer gear 319 and the outer gear 319 are engaged, the liquid pump 305 is driven. The heat radiation pipe 5 and the hose 306 are filled with liquid, the liquid is driven to flow, and when the liquid passes through the relief valve 4, friction is generated due to the flow resistance of the liquid, and heat is generated. The liquid passing through the overflow valve 4 flows to the heat dissipation pipeline 5, the heat dissipation pipeline 5 has a large heat dissipation area and is installed on the axle 1, and when a vehicle travels, the air flow passes through the heat dissipation pipeline 5, so that heat is easily dissipated. The invention converts part of mechanical kinetic energy during braking into friction heat energy of liquid passing through the valve, and utilizes the heat dissipation device arranged outside the brake hub 2 to quickly dissipate the heat energy, thereby avoiding the defect of brake failure caused by heat generated inside the brake hub 2 and saving the friction between the brake shoe 203 and the hub body 201.
The control mode of the invention is automatically controlled by the controller, the control circuit of the controller can be realized by simple programming of a person skilled in the art, the invention belongs to the common knowledge in the field, and the invention is mainly used for protecting mechanical devices, so the control mode and the circuit connection are not explained in detail in the invention.
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 variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (5)
1. A heat dissipation brake drum for an automobile, characterized in that: the brake system comprises an axle (1), a brake drum (2), a brake fluid driving device (3), an overflow valve (4) and a heat dissipation pipeline (5); the brake drums (2) are arranged at two ends of the axle (1); the brake fluid driving device (3) is arranged in the brake drum (2); the heat dissipation pipeline (5) is fixedly connected to the axle (1); the overflow valve (4) is connected in series with the heat dissipation pipeline (5); the brake drum (2) comprises a hub body (201), a brake base (202), a brake shoe (203), a first hydraulic cylinder (204) and a return spring (205); the first hydraulic cylinder (204) comprises a first cylinder body (206) and a first piston (207); the brake fluid driving device (3) comprises a bracket (301), a second hydraulic cylinder (302), a connecting rod (303), a movable seat (304) and a fluid pump (305); an inlet and an outlet hose (306) are arranged at the inlet and the outlet of the liquid pump (305); the heat dissipation pipeline (5) is made of metal; two ends of the heat radiation pipeline (5) are respectively connected with an inlet and an outlet hose (306) of the liquid pump (305); the support (301) and the first cylinder body (206) are both fixedly connected to the brake base (202).
2. A heat-dissipating brake drum for an automobile according to claim 1, wherein: one end of the bracket (301) is provided with a sliding groove (307); a hydraulic support (308) is arranged in the middle of the support (301); the sliding groove (307) is provided with a first opening (309) at one side of the hydraulic support (308); the middle part of the bracket (301) is also provided with a first connecting column (310); the sliding groove (307) is provided with a second opening (311) at one side of the first connecting column (310); the second hydraulic cylinder (302) comprises a second cylinder body (312) and a second piston (313); the second cylinder (312) is fixedly connected to the hydraulic support (308); the outer end of the second piston (313) is provided with a first connection opening (314).
3. A heat-dissipating brake drum for an automobile according to claim 1, wherein: the movable seat (304) is provided with a sliding block (315); the bottom of the sliding block (315) is provided with a second connecting open hole (316); a pump body support (317) is arranged on one side of the sliding block (315); the bottom of the pump body support (317) is provided with a second connecting column (318); the first connecting column (310) and the second connecting column (318) are connected through a return spring (205); the liquid pump (305) is fixedly connected to the top of the pump body support (317); an external gear (319) is arranged at the input shaft end of the liquid pump (305); an inner gear (208) is arranged on the inner side of the hub body (201); the first connecting opening (314) and the second connecting opening (316) are respectively and rotatably connected with two ends of the connecting rod (303).
4. A heat-dissipating brake drum for an automobile according to claim 1, wherein: the brake shoe (203) is provided with a substrate (209); a friction layer (210) is arranged on the outer side of the substrate (209); a rib plate (211) is arranged in the middle of the base plate (209); a third connecting column (212) is arranged in the middle of the rib plate (211); the bottom of the rib plate (211) is provided with a rotating hole (213); the top of the rib plate (211) is provided with a pushing plate (214); the end surface of the pushing plate (214) is arc-shaped; a fourth connecting column (215) is arranged in the middle of the brake base (202); the bottom of the brake base (202) is provided with a rotating column (216).
5. The heat-dissipating brake drum for an automobile as set forth in claim 4, wherein: the brake shoe (203) is rotatably connected with the brake base (202) through the rotating hole (213) and the rotating column (216); the third connecting column (212) and the fourth connecting column (215) are connected through a return spring (205).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811650049.6A CN109654132B (en) | 2018-12-31 | 2018-12-31 | Heat dissipation brake drum for automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811650049.6A CN109654132B (en) | 2018-12-31 | 2018-12-31 | Heat dissipation brake drum for automobile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109654132A CN109654132A (en) | 2019-04-19 |
| CN109654132B true CN109654132B (en) | 2021-01-01 |
Family
ID=66118125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811650049.6A Active CN109654132B (en) | 2018-12-31 | 2018-12-31 | Heat dissipation brake drum for automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109654132B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112268079B (en) * | 2020-10-31 | 2021-12-28 | 浙江夏厦精密制造股份有限公司 | Gear applied to brake device and intelligent brake system of electric bus |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5484173A (en) * | 1977-12-19 | 1979-07-04 | Nissan Motor Co Ltd | Tester for drum braking auto adjuster |
| CN2282090Y (en) * | 1997-03-23 | 1998-05-20 | 湖南汽车车桥厂 | Brake for light automobile |
| CN2727491Y (en) * | 2004-03-19 | 2005-09-21 | 余关金 | Boosting automobile brake |
| CN2708032Y (en) * | 2004-05-20 | 2005-07-06 | 太原重型机械学院 | Double liquid power converter of brake system |
| CN201599348U (en) * | 2009-10-14 | 2010-10-06 | 毕大宁 | Electric drum brake |
| CN205190602U (en) * | 2015-12-03 | 2016-04-27 | 泉州市力将机件企业有限公司 | Brake rim that radiating efficiency is high |
| CN206802145U (en) * | 2017-03-28 | 2017-12-26 | 林兵磊 | The automobile-used drum brake wheel cylinder of electric motorcycle and drum brake system |
-
2018
- 2018-12-31 CN CN201811650049.6A patent/CN109654132B/en active Active
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| Publication number | Publication date |
|---|---|
| CN109654132A (en) | 2019-04-19 |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 055350 Mengcun, Gucheng Town, Longyao County, Xingtai City, Hebei Province Applicant after: HEBEI BAILONG AUTO PARTS Co.,Ltd. Address before: 055350 Mengcun, Gucheng Town, Longyao County, Xingtai City, Hebei Province Applicant before: HEBEI BAILONG AUTO PARTS MANUFACTURING CO.,LTD. |
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| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230403 Address after: 122000 environmental protection equipment Industrial Park (Zone C), Chaoyang Beipiao Economic Development Zone, Chaoyang City, Liaoning Province Patentee after: Chaoyang Bailong Auto Parts Co.,Ltd. Address before: 055350 Mengcun, Gucheng Town, Longyao County, Xingtai City, Hebei Province Patentee before: HEBEI BAILONG AUTO PARTS Co.,Ltd. |