CN112460167A - Automobile brake drum with heat dissipation mechanism and use method thereof - Google Patents
Automobile brake drum with heat dissipation mechanism and use method thereof Download PDFInfo
- Publication number
- CN112460167A CN112460167A CN202011296880.3A CN202011296880A CN112460167A CN 112460167 A CN112460167 A CN 112460167A CN 202011296880 A CN202011296880 A CN 202011296880A CN 112460167 A CN112460167 A CN 112460167A
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- fixedly connected
- brake
- shell
- heat dissipation
- bearing
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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
- F16D65/02—Braking members; Mounting thereof
- F16D65/04—Bands, shoes or pads; Pivots or supporting members therefor
- F16D65/08—Bands, shoes or pads; Pivots or supporting members therefor for internally-engaging brakes
- F16D65/09—Pivots or supporting members therefor
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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
- F16D65/827—Features relating to cooling for internally-engaging brakes with open cooling system, e.g. cooled by air
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
The invention relates to the technical field of automobile brake drums, in particular to an automobile brake drum with a heat dissipation mechanism and a using method thereof, wherein the automobile brake drum comprises an outer shell and an inner shell, a bearing is fixedly connected inside the outer shell, long screws which are uniformly distributed are arranged on the periphery of the front side of the bearing, hexagonal nuts, the inner shell, the bearing and the outer shell which are distributed front and back are spirally connected on the outer sides of the long screws, a connecting shaft is fixedly connected in the center of the front end face of the bearing, fan blades which are uniformly distributed are fixedly connected on the outer side of the connecting shaft, a protection frame is arranged on the outer side of the fan blades, the rear end face of the protection frame is fixedly connected; according to the automobile heat dissipation device, the connecting shaft, the fan blades, the protection frame and the fixing frame are arranged, in the driving process of an automobile, the transmission shaft drives the rotating shaft to rotate, so that the fan blades are driven to rotate, air in the inner shell is driven to flow at an accelerated speed, the heat dissipation purpose is accelerated, the temperature of the inner shell can be reduced quickly, and the normal use of the inner shell is guaranteed.
Description
Technical Field
The invention relates to the technical field of automobile brake drums, in particular to an automobile brake drum with a heat dissipation mechanism and a using method thereof.
Background
The brake drum is a friction couple part of a drum brake, and has strength and rigidity required as a component, as well as a friction coefficient which is as high and stable as possible, and appropriate wear resistance, heat dissipation, heat capacity and the like, the brake is a part used for generating braking force for resisting vehicle movement or movement tendency in a braking system, the automobile brake is a friction brake which almost generates braking torque by utilizing friction of a fixed element and a working surface of a rotating element except various speed buffers, and the brake drum is improperly designed and is easy to change when being heated; the brake drum is unbalanced in stress and can also generate mechanical deformation, so that the shoe and the drum are not in contact well, and the pedal force and the stroke are increased; when the out-of-roundness of the working surface of the brake drum is too large, self-locking can be caused, vibration and noise are generated, so that the brake drum has enough wall thickness, and circumferential or axial reinforcing ribs are cast on the outer surface close to the opening part to improve the strength, and the reinforcing ribs play a role in heat dissipation, can reduce the temperature of the friction surface, shorten the cooling time of the brake and improve the energy capacity by 35-40%.
Most automobile brake drums in the market at present do not have a heat dissipation mechanism when in use, the temperature of the brake drum of a wheel is too high, even tire burst can be caused, accelerated wear is easily caused when the brake drum is in a high-temperature state for a long time, and brake failure is seriously and directly caused.
Disclosure of Invention
The present invention is directed to a vehicle brake drum with a heat dissipation mechanism and a method for using the same, so as to solve the problems of the background art.
In order to achieve the purpose, the invention provides the following technical scheme:
an automobile brake drum with a heat dissipation mechanism and a using method thereof comprise an outer shell and an inner shell, wherein the outer shell is fixedly connected with a bearing, long screws which are uniformly distributed are arranged on the periphery of the front side of the bearing, the outer sides of the long screws are spirally connected with a hexagon nut, the inner shell, the bearing and the outer shell which are distributed front and back, a connecting shaft is fixedly connected to the center of the front end face of the bearing, uniformly distributed fan blades are fixedly connected to the outer side of the connecting shaft, a protective frame is arranged on the outer side of each fan blade, the rear end face of the protective frame is fixedly connected with the bearing, a fixing frame is fixedly connected to the lower portion of the front end face of the outer shell, brake plates are rotatably connected to the left side and the right side of the fixing frame, guide grooves are formed in the inner sides of the brake plates, guide shafts are arranged on the, the front side of the inner shell is fixedly connected with a limiting mechanism.
Preferably, the brake block is located on the left side and fixedly connected with a brake block on the left side, the brake block is located on the right side and fixedly connected with a brake block on the right side, and the outer sides of the brake blocks are all arc-shaped.
Preferably, the number of the guide grooves is two, the guide grooves are arranged in an arc shape, and the guide shaft is connected with the brake plate in a sliding mode through the guide grooves.
Preferably, the outer side of the protection frame is provided with vent holes which are uniformly distributed, and the diameter of the protection frame is 0.7 times of the inner diameter of the bearing.
Preferably, stop gear includes the fixed axle, fixed axle rear end face and inner shell fixed connection, fixed axle outside fixedly connected with evenly distributed's telescopic link, the telescopic link outside all is equipped with expanding spring, the equal fixedly connected with spacing of the telescopic link other end, spacing card is in the hexagon nut outside, terminal surface fixedly connected with ejector pad before the spacing.
Preferably, the rear end face of the outer cover is fixedly connected with the inner shell, grooves are uniformly distributed in the outer side of the outer cover, and the push block is arranged on the inner side of each groove.
Preferably, one end of the telescopic spring is fixedly connected with the fixed shaft, and the other end of the telescopic spring is fixedly connected with the limiting frame.
Preferably, the steps are as follows:
step 1: firstly, an inner shell is arranged in an outer shell, then the inner shell and the outer shell are fixedly connected through a long screw, whether the connection is stable or not is detected, and a limiting mechanism is used for limiting a hexagon nut to prevent the hexagon nut from sliding;
step 2: when the brake is carried out, the brake wheel cylinder is started, so that the brake plates on two sides are pushed to two sides, and then the brake pads are driven to move so as to be contacted with the inner shell, thereby realizing the purpose of braking;
and step 3: when the bearing rotates, the connecting shaft is driven to rotate, so that the fan blades are driven to rotate, the air on the inner side flows rapidly, and the purpose of cooling is achieved.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the automobile radiator, the connecting shaft, the fan blades, the protective frame and the fixing frame are arranged, in the driving process of an automobile, the transmission shaft drives the rotating shaft to rotate, so that the fan blades are driven to rotate, air in the inner shell is driven to flow at an accelerated speed, the radiating purpose of the inner shell is accelerated, the temperature of the inner shell can be reduced quickly, and the normal use of the inner shell is guaranteed;
2. according to the invention, the brake plate, the guide shaft, the guide groove and the brake pad are arranged, the fixing frame and the guide shaft and the guide groove are arranged, and double-layer safety is realized, so that the brake plate can be ensured to stably rotate without offset, and can drive the brake pad to rotate, the purpose of braking is stably realized, and the brake device has good practical value;
3. according to the invention, the hexagonal screw is generally exposed outside through the fixed shaft, the telescopic rod, the telescopic spring, the limiting frame, the pushing block and the outer cover, once the loosening result is unforeseen, the hexagonal screw can be limited through the limiting frame, the loosening of the hexagonal screw is avoided, the position of the hexagonal screw cannot be changed, the hexagonal screw has good stability, when the hexagonal screw needs to be maintained, the limiting frame is driven to move through the pushing block, then the hexagonal screw is separated from the hexagonal screw, and then the hexagonal screw can be rotated to be taken out and then the maintenance work is carried out.
Drawings
FIG. 1 is a schematic view of the internal structure of the inner casing of the present invention;
FIG. 2 is a schematic view of the structure of FIG. 1 at point A according to the present invention;
FIG. 3 is a schematic view of the overall structure of the present invention;
fig. 4 is a schematic structural view of the limiting mechanism of the present invention.
In the figure: 1-outer shell, 2-inner shell, 3-bearing, 4-long screw, 5-connecting shaft, 6-flabellum, 7-protective frame, 8-fixing frame, 9-braking plate, 10-guiding shaft, 11-guiding groove, 12-braking sheet, 13-braking wheel cylinder, 14-limiting mechanism, 1401-fixing shaft, 1402-telescopic rod, 1403-telescopic spring, 1404-limiting frame, 1405-push block, 1406-outer cover, 1407-groove and 15-hexagon nut.
Detailed Description
Example 1:
referring to fig. 1, fig. 2, fig. 3 and fig. 4, the present invention provides a technical solution:
an automobile brake drum with a heat dissipation mechanism and a using method thereof, comprises an outer shell 1 and an inner shell 2, wherein a bearing 3 is fixedly connected inside the outer shell 1, long screws 4 which are uniformly distributed are arranged on the periphery of the front side of the bearing 3, hexagon nuts 15 which are distributed front and back are spirally connected on the outer sides of the long screws 4, the inner shell 2, the bearing 3 and the outer shell 1, a connecting shaft 5 is fixedly connected in the center of the front end face of the bearing 3, fan blades 6 which are uniformly distributed are fixedly connected on the outer side of the connecting shaft 5, a protective frame 7 is arranged on the outer side of each fan blade 6, vent holes which are uniformly distributed are arranged on the outer side of the protective frame 7, the arrangement of the vent holes ensures that air normally circulates, the diameter of the protective frame 7 is 0.7 times of the inner diameter of the bearing 3, the arrangement ensures that the fan blades 6 on the, the lower part of the front end face of the outer shell 1 is fixedly connected with a fixed frame 8, the left side and the right side of the fixed frame 8 are rotatably connected with brake plates 9, the inner sides of the brake plates 9 are respectively provided with two guide grooves 11, the guide grooves 11 are arranged in an arc shape, guide shafts 10 are slidably connected with the brake plates 9 through the guide grooves 11, the arrangement has the purpose of guiding, the brake plates 9 can only move in a specified track and have good stability, the inner sides of the guide grooves 11 are respectively provided with the guide shafts 10, the rear end face of each guide shaft 10 is fixedly connected with the outer shell 1, the upper part of each brake plate 9 is respectively fixedly connected with a brake sub-pump 13, the front side of the inner shell 2 is fixedly connected with a limiting mechanism 14, each limiting mechanism 14 comprises a fixed shaft 1401, the rear end face of the fixed shaft 1401 is fixedly connected with the inner shell 2, the outer side of the fixed shaft, the telescopic rod 1402 ensures that the limit frame 1404 stably moves, the other end of the telescopic rod 1402 is fixedly connected with the limit frame 1404, the limit frame 1404 is clamped outside the hexagon nut 15, the front end face of the limit frame 1404 is fixedly connected with a push block 1405, the rear end face of the outer cover 1406 is fixedly connected with the inner shell 2, grooves 1407 uniformly distributed are formed in the outer side of the outer cover 1406, the push block 1405 is arranged inside the groove 1407, the push block 1405 is convenient to drive the limit frame 1404 to move and is convenient to disassemble, one end of the telescopic spring 1403 is fixedly connected with the fixed shaft 1401, the other end of the telescopic spring 1403 is fixedly connected with the limit frame 1404, the telescopic spring 1403 can push the limit frame 1404 to be in close contact with the hexagon screw 16 to avoid looseness, the left side of the brake plate 9 on the left side is fixedly connected with a brake pad 12, the right side of the brake plate 9 on the right side, the arrangement increases the contact area and has better braking performance.
The method comprises the following steps:
step 1: firstly, the inner shell 2 is arranged inside the outer shell 1, then the inner shell 2 and the outer shell 1 are fixedly connected through the long screw 4, whether the connection is stable or not is detected, and the hexagonal nut 15 is limited through the limiting mechanism 14 to avoid sliding;
step 2: in the process of braking, the brake cylinder 13 is started, so that the brake plates 9 on two sides are pushed to two sides, and then the brake pads 12 are driven to move so as to be contacted with the inner shell 2, so that the purpose of braking is realized, when the brake device is used, the inner shell 2 rotates along with the rotation of the bearing 3, and the outer shell 1 cannot rotate;
and step 3: when the bearing 3 rotates, the connecting shaft 5 is driven to rotate, so that the fan blades 6 are driven to rotate, the inner side air flows rapidly, and the purpose of cooling is achieved.
The working process is as follows: when the automobile brake device is used, a power supply is switched on, when an automobile brakes, the brake wheel cylinders 13 are started to drive the brake plates 9 on the left side and the right side to move, the brake plates 9 move towards two sides, so that the brake pads 12 are driven to be in contact with the inner shell 2, the brake purpose is realized, huge heat is generated during braking, long-time heat cannot be dissipated timely, the tire protection and the sudden reduction of the service life of equipment are easily caused, the device can ensure that when the automobile moves, the transmission shaft drives the bearing 3 to rotate, so that the connecting shaft 5 is driven to rotate, the connecting shaft 5 drives the fan blades 6 to rotate, so that air in the inner shell 2 is driven to flow rapidly, the heat on the inner side of a brake drum is taken away, the rapid cooling purpose is realized, the fixing frame 8 can ensure that the brake plates 9 move leftwards and rightwards stably, but once the brake plates are damaged, the situation cannot be considered later, the device, guarantee can the secondary carry out the purpose of injecing to the brake block 9, guarantee that its brake block 9 is stable to be controlled and remove, and the spacing 1404 that sets up can carry on spacingly to the hexagon nut 15 in the long screw 4 outside, avoid it to take place not hard up, expanding spring 1403 of setting can make spacing 1404 inseparable laminate with hexagon nut 15, realize spacing purpose, and its inboard part can be protected to dustcoat 1406 that sets up, avoid it to receive external environment's interference, and setting up of telescopic link 1402 guarantees that its spacing 1404 can only stably slide, its condition of rocking can not take place.
Example 2:
in embodiment 2, the same parts as those in embodiment 1 are not described again, except that when the maintenance is required, the hand-held push block 1405 is moved toward the fixed shaft 1401, so that the limiting frame 1404 is separated from the hexagonal nut 15, and the hexagonal nut 15 can be rotated, and then the inner shell 2 and the outer shell 1 are separated, and then the maintenance is ensured.
The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. The foregoing is only a preferred embodiment of the present invention, and it should be noted that there are objectively infinite specific structures due to the limited character expressions, and it will be apparent to those skilled in the art that a plurality of modifications, decorations or changes may be made without departing from the principle of the present invention, and the technical features described above may be combined in a suitable manner; such modifications, variations, combinations, or adaptations of the invention using its spirit and scope, as defined by the claims, may be directed to other uses and embodiments.
Claims (8)
1. The utility model provides an automobile brake drum with heat dissipation mechanism, includes shell (1) and inner shell (2), its characterized in that: the bearing (3) is fixedly connected in the shell (1), the long screws (4) which are uniformly distributed are arranged on the periphery of the front side of the bearing (3), the outer sides of the long screws (4) are spirally connected with hexagon nuts (15), inner shells (2), bearings (3) and the shell (1) which are distributed front and back, the center of the front end face of the bearing (3) is fixedly connected with a connecting shaft (5), the outer sides of the connecting shaft (5) are fixedly connected with fan blades (6) which are uniformly distributed, the outer sides of the fan blades (6) are provided with protective frames (7), the rear end face of each protective frame (7) is fixedly connected with the bearing (3), a fixing frame (8) is fixedly connected below the front end face of the shell (1), the left side and the right side of each fixing frame (8) are rotatably connected with brake plates (9), guide grooves (11) are formed in the inner sides of the brake plates (9, the brake disc is characterized in that the rear end face of the guide shaft (10) is fixedly connected with the outer shell (1), a brake cylinder (13) is fixedly connected above the brake disc (9), and a limiting mechanism (14) is fixedly connected to the front side of the inner shell (2).
2. The automotive brake drum with a heat dissipation mechanism of claim 1, wherein: be located the left brake block (9) left side fixedly connected with brake block (12), be located the right side brake block (9) right side fixedly connected with brake block (12), the brake block (12) outside all is the arc setting.
3. The automotive brake drum with a heat dissipation mechanism of claim 1, wherein: guide way (11) quantity is two, and guide way (11) are the arc setting, guiding axle (10) pass through guide way (11) and brake block (9) sliding connection.
4. The automotive brake drum with a heat dissipation mechanism of claim 1, wherein: evenly distributed vent holes are formed in the outer side of the protective frame (7), and the diameter of the protective frame (7) is 0.7 time of the inner diameter of the bearing (3).
5. The automotive brake drum with a heat dissipation mechanism of claim 1, wherein: the limiting mechanism (14) comprises a fixing shaft (1401), the rear end face of the fixing shaft (1401) is fixedly connected with the inner shell (2), the outer side of the fixing shaft (1401) is fixedly connected with telescopic rods (1402) which are uniformly distributed, telescopic springs (1403) are arranged on the outer sides of the telescopic rods (1402), limiting frames (1404) are fixedly connected with the other ends of the telescopic rods (1402), the limiting frames (1404) are clamped on the outer sides of hexagon nuts (15), and the front end face of each limiting frame (1404) is fixedly connected with a push block (1405).
6. The automotive brake drum with a heat dissipation mechanism of claim 5, wherein: the rear end face of the outer cover (1406) is fixedly connected with the inner shell (2), grooves (1407) which are uniformly distributed are formed in the outer side of the outer cover (1406), and the push block (1405) is arranged on the inner side of the groove (1407).
7. The automotive brake drum with a heat dissipation mechanism of claim 5, wherein: one end of the telescopic spring (1403) is fixedly connected with the fixed shaft (1401), and the other end of the telescopic spring (1403) is fixedly connected with the limiting frame (1404).
8. The use method of the automobile brake drum with the heat dissipation mechanism according to claim 5, wherein the method comprises the following steps: the steps are as follows:
step 1: firstly, an inner shell (2) is arranged inside an outer shell (1), then the inner shell (2) is fixedly connected with the outer shell (1) through a long screw (4), then whether the connection is stable or not is detected, and a hexagonal nut (15) is limited through a limiting mechanism (14) to avoid sliding;
step 2: in the braking process, the brake cylinder (13) is started, so that the brake plates (9) on two sides are pushed to two sides, and then the brake pads (12) are driven to move so as to be in contact with the inner shell (2), and the purpose of braking is realized, when the brake cylinder is used, the inner shell (2) rotates along with the rotation of the bearing (3), and the outer shell (1) cannot rotate;
and step 3: when the bearing (3) rotates, the connecting shaft (5) is driven to rotate, so that the fan blades (6) are driven to rotate, the rapid flow of air at the inner side is realized, and the purpose of cooling is realized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011296880.3A CN112460167A (en) | 2020-11-18 | 2020-11-18 | Automobile brake drum with heat dissipation mechanism and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011296880.3A CN112460167A (en) | 2020-11-18 | 2020-11-18 | Automobile brake drum with heat dissipation mechanism and use method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112460167A true CN112460167A (en) | 2021-03-09 |
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ID=74836731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011296880.3A Pending CN112460167A (en) | 2020-11-18 | 2020-11-18 | Automobile brake drum with heat dissipation mechanism and use method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN112460167A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113915270A (en) * | 2021-09-28 | 2022-01-11 | 黄山菲英汽车零部件有限公司 | Drum brake with ventilation and heat dissipation functions |
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| WO2012019270A1 (en) * | 2010-08-10 | 2012-02-16 | Terence Eugene Neves | Anti-dust cooling device for automotive brake drums |
| CN203822913U (en) * | 2014-04-25 | 2014-09-10 | 谌彩红 | Self-temperature-control alarm brake wheel drum |
| 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 |
| CN207814271U (en) * | 2017-12-29 | 2018-09-04 | 天津升起科技有限公司 | A kind of drum brake |
| CN207989600U (en) * | 2017-08-28 | 2018-10-19 | 江西海峰重工科技有限责任公司 | A kind of mine truck brake assembly |
| CN208919155U (en) * | 2018-08-07 | 2019-05-31 | 江西久旺汽车配件制造有限公司 | A kind of radiation strengthened automobile brake drum |
| CN110319133A (en) * | 2018-03-30 | 2019-10-11 | 高邮市宏生制动器厂 | A kind of drum brakes of good heat dissipation effect |
| CN110758014A (en) * | 2019-11-13 | 2020-02-07 | 徐州永盛机电有限公司 | Rear axle for electric tricycle |
| CN211449447U (en) * | 2019-12-15 | 2020-09-08 | 绍兴中舜汽配有限公司 | Rear brake drum of automobile chassis |
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2020
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Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012019270A1 (en) * | 2010-08-10 | 2012-02-16 | Terence Eugene Neves | Anti-dust cooling device for automotive brake drums |
| CN203822913U (en) * | 2014-04-25 | 2014-09-10 | 谌彩红 | Self-temperature-control alarm brake wheel drum |
| 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 |
| CN207989600U (en) * | 2017-08-28 | 2018-10-19 | 江西海峰重工科技有限责任公司 | A kind of mine truck brake assembly |
| CN207814271U (en) * | 2017-12-29 | 2018-09-04 | 天津升起科技有限公司 | A kind of drum brake |
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| CN110758014A (en) * | 2019-11-13 | 2020-02-07 | 徐州永盛机电有限公司 | Rear axle for electric tricycle |
| CN211449447U (en) * | 2019-12-15 | 2020-09-08 | 绍兴中舜汽配有限公司 | Rear brake drum of automobile chassis |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113915270A (en) * | 2021-09-28 | 2022-01-11 | 黄山菲英汽车零部件有限公司 | Drum brake with ventilation and heat dissipation functions |
| CN113915270B (en) * | 2021-09-28 | 2023-11-24 | 黄山菲英汽车零部件有限公司 | Drum brake with ventilation and heat dissipation functions |
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