CN109424664A - Drum brake and vehicle - Google Patents
Drum brake and vehicle Download PDFInfo
- Publication number
- CN109424664A CN109424664A CN201710758838.0A CN201710758838A CN109424664A CN 109424664 A CN109424664 A CN 109424664A CN 201710758838 A CN201710758838 A CN 201710758838A CN 109424664 A CN109424664 A CN 109424664A
- Authority
- CN
- China
- Prior art keywords
- brake
- drum brake
- driving body
- motor
- drum
- 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.)
- Granted
Links
Classifications
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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
- F16D51/22—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 mechanically 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
- F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
- F16D65/16—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake
- F16D65/18—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake adapted for drawing members together, e.g. for disc brakes
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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
- F16D2121/14—Mechanical
-
- 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
- F16D2127/00—Auxiliary mechanisms
- F16D2127/06—Locking mechanisms, e.g. acting on actuators, on release mechanisms or on force transmission mechanisms
-
- 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
- F16D2129/00—Type of operation source for auxiliary mechanisms
- F16D2129/06—Electric or magnetic
- F16D2129/08—Electromagnets
Abstract
This disclosure relates to a kind of drum brake and vehicle.The drum brake includes back-plate, brake drum, two brake-shoes, motor, reciprocating mechanism, driving body, and two mandrils, the brake-shoe is articulated with the back-plate, described two mandrils are arranged in the two sides of the driving body and are located along the same line, one end of each mandril is connected to the driving body, the other end is connected to corresponding brake-shoe, the motor drives the driving body to move back and forth along the direction perpendicular to the mandril by the reciprocating mechanism, the driving body can push described two mandrils to move synchronously on the straight line in the opposite direction, so that described two brake-shoes open.Through the above technical solution, the brake in service brake is enabled to export a pulse brake force, and when exporting pulse brake force, motor need to only continue forward or reverse, without ceaselessly carrying out positive and negative rotation switching, to extend the service life of motor.
Description
Technical field
This disclosure relates to brake field, and in particular, to a kind of drum brake and vehicle.
Background technique
In traditional hydraulic or Pneumatic brake system, there are gas-liquid pipeline complexity, maintenance difficult, arragement construction it is complicated,
Braking dynamic response is slow, brakes the more low distinct disadvantage of comfort property.For example, in brake fluid system, in ANTI LOCK
Brake pedal can generate rebound oscillation phenomenon when system acting, affect braking comfort property.For another example, due to brake treadle mechanism
The impact force for being directly connected with brake actuator and braking executive device, therefore generating when vehicle collides can directly lead to
It crosses braking system to be transmitted in driver's cabin, has seriously affected the security performance of automobile.For another example, in traditional brake fluid system because
Using the component of the conventional hydraulics braking systems such as the biggish vacuum brake assistor of volume, master cylinder, oil conservator, therefore not
Only there is structure and assemble complicated and big, difficult in maintenance volume problem, and due to being provided with connection corresponding component in system
Hydraulic brake line and brake fluid, need to regularly replace and hydraulic oil and periodically check whether asking there are hydraulic fluid leak
Topic.Based on above-mentioned problems, exploitation in recent years has, braking dynamic simple compared to hydraulic or its structure of Pneumatic brake system
Response is fast and brakes comfort property and the good a variety of electromechanical braking systems of security performance.
Summary of the invention
Purpose of this disclosure is to provide a kind of drum brakes, and the drum-like brake structure is simple, and in output pulse
Positive and negative rotation switching is ceaselessly carried out without motor when brake force.
To achieve the goals above, the disclosure provides a kind of drum brake, including back-plate, brake drum, two systems
Dynamic hoof, motor, reciprocating mechanism, driving body and two mandrils, the brake-shoe is articulated with the back-plate, described
Two mandrils are arranged in the two sides of the driving body and are located along the same line, and one end of each mandril is connected to the driving
Body, the other end are connected to corresponding brake-shoe, and the motor drives the driving body along vertical by the reciprocating mechanism
It is moved back and forth in the direction of the mandril, the driving body can push described two mandrils in the opposite direction in the straight line
On move synchronously so that described two brake-shoes open.
Optionally, the driving body has the shape tapered along its direction of motion.
Optionally, the driving body is cone shape.
Optionally, the drum brake further includes return spring, and the return spring applies elasticity to the brake-shoe
Power is so that brake-shoe is pressed against on the mandril.
Optionally, the reciprocating mechanism is cam follower mechanism.
Optionally, the cam follower mechanism includes cam and push rod, and one end of the push rod is connected to the cam, institute
The other end that the push rod is arranged in driving body is stated, the drum brake further includes reset spring, and the reset spring is to institute
It states driving body and applies elastic force, so that the push rod is pressed against on the cam.
Optionally, the reciprocating mechanism is slider-crank mechanism.
Optionally, the drum brake further includes electromagnetic clutch, when electromagnetic clutch power-off, the electromagnetism
Clutch is engaged with the motor shaft of motor described in locking；When the electromagnetic clutch is powered, electromagnetic clutch separation with
Discharge the motor shaft.
Optionally, the electromagnetic clutch includes electromagnet, rotary friction pad peace shifting friction plate, and the electromagnet includes
Fixed core, dynamic iron core and the driving spring for acting on the dynamic iron core, the rotary friction pad and the motor axis connection, it is described
Translational friction piece can be by the driving of the dynamic iron core.
Optionally, the electromagnetic clutch further includes clutch housing, inside race and outer race, the inside race with it is described
The connection of motor shaft spline, the rotary friction pad are arranged on the inside race, the inner wall flower of the outer race and the shell
Key connection, the clutch housing are fixed relative to the back-plate, and the translational friction piece is arranged on the outer race.
Optionally, the drum brake further includes deceleration mechanism, and the motor shaft of the motor passes through the deceleration mechanism
It is sequentially connected in the input terminal of the reciprocating mechanism.
Optionally, the deceleration mechanism is planetary gear reducing mechanism.
Optionally, the planetary gear reducing mechanism includes primary planet pinion system and secondary planetary gear system, and described one
The sun gear of grade planetary gear train is connected with the motor shaft of the motor, the planet carrier of the primary planet pinion system and described two
The sun gear of grade planetary gear train is connected, the planet carrier of the secondary planetary gear system and the input terminal of the reciprocating mechanism
It is connected.
Through the above technical solutions, brake is enabled in service brake to export a pulse brake force, and
Motor need to only continue forward or reverse when exporting pulse brake force, without ceaselessly carrying out positive and negative rotation switching, to extend
The service life of motor.
The disclosure also provides a kind of vehicle, including drum brake as described above.
Other feature and advantage of the disclosure will the following detailed description will be given in the detailed implementation section.
Detailed description of the invention
Attached drawing is and to constitute part of specification for providing further understanding of the disclosure, with following tool
Body embodiment is used to explain the disclosure together, but does not constitute the limitation to the disclosure.In the accompanying drawings:
Fig. 1 is the structural schematic diagram according to the execution part of the drum brake of an embodiment of the present disclosure；
Fig. 2 is the partial enlarged view of Fig. 1；
Fig. 3 is the structural schematic diagram according to the drive part of the drum brake of an embodiment of the present disclosure；
Fig. 4 is a kind of perspective view of embodiment of driving body；
Fig. 5 is the perspective view of the another embodiment of driving body；
Fig. 6 is the structural schematic diagram of electromagnetic clutch.
Specific embodiment
It is described in detail below in conjunction with specific embodiment of the attached drawing to the disclosure.It should be understood that this place is retouched
The specific embodiment stated is only used for describing and explaining the disclosure, is not limited to the disclosure.
In the disclosure, in the absence of explanation to the contrary, the noun of locality used such as " upper and lower " typically refers to corresponding attached
The page of figure it is upper and lower, the use of these nouns of locality is merely for convenience of describing, and cannot be considered as the limitation to the disclosure.
According to one aspect of the disclosure, as shown in Figure 1 to Figure 3, a kind of drum brake, including back-plate are provided
(not shown), 10, two brake-shoes 20 of brake drum, motor 30, deceleration mechanism 60, reciprocating mechanism 40, driving body 80 and
Two mandrils 90.Back-plate is used to be fixed to axle shell or knuckle.The lower end of each brake-shoe 20 is hinged to braking bottom
On plate, the structure of two brake-shoes 20 and installation have axial symmetry.Driving body 80 be arranged in two brake-shoes 20 upper end it
Between, two mandrils 90 are separately positioned on 80 two sides of driving body and are located along the same line, and one end of each mandril 90 is connected to drive
Kinetoplast 80, the other end are connected to the upper end of corresponding brake-shoe 20.When driving body 80 is moved along the direction perpendicular to mandril 90,
Driving body 80 can push mandril 90 to move synchronously in the opposite direction, so that two brake-shoes 20 open.Outside brake-shoe 20
Friction plate is provided on circumferential surface.Brake drum 10 is rotated together for being fixed on hub for vehicle wheel with wheel.
When braking, motor 30 passes sequentially through deceleration mechanism 60 and reciprocating mechanism 40 drives driving body 80 to move back and forth,
To which two mandrils 90 made to support on driving body 80 move synchronously in opposite direction, the upper end of two brake-shoes 20 is pushed
It is flared out, so that friction plate be made to be pressed on the inner peripheral surface of brake drum 10.At this point, non-rotary brake-shoe 20 is just to rotation
Brake drum 10 generates a moment of friction, and the direction of the moment of friction is with wheel direction of rotation on the contrary, wheel is forced to slow down.
In addition, in the disclosure, by using reciprocating mechanism, the brake in service brake is enabled to export one
A pulse brake force, and when exporting pulse brake force, motor need to only continue forward or reverse, without ceaselessly carrying out
Positive and negative rotation switching, to extend the service life of motor.
Here, driving body 80 can have profile symmetry, so that the displacement of two brake-shoes 20 is equal when braking.
In the disclosure, driving body 80 can have any suitable shape, as long as can guarantee when driving body 80 is along vertical
Directly driving body 80 can push mandril 90 to move synchronously in the opposite direction when the direction of mandril 90 moves.In a kind of reality
It applies in mode, driving body 80 can have the shape tapered along its direction of motion.Optionally, as shown in figure 4, driving body 80 can be with
For cone, two mandrils 90 are supported on the conical surface of cone.Also optionally, as shown in figure 5, driving body 80 can be in for cross section
The prism of isosceles triangle or isosceles trapezoid, two mandrils 90 are supported respectively on two symmetrical sides of prism.
Further, in order to guarantee that the upper end of brake-shoe 20 is connected to the end of mandril 90 always, in a kind of embodiment
In, the brake further includes return spring 50, and brake-shoe 20 leans on or be pressed against mandril by the drawing of return spring 50 when not braking
90 end.
Reciprocating mechanism 40 can have any suitable structure.In one embodiment, as shown in Fig. 2, back and forth
Movement mechanism 40 can be cam follower mechanism, which includes cam 41 and push rod 42, and one end of push rod 42 is supported
It is connected to cam 41, the other end of push rod 42 is arranged in driving body 80.In this case, in order to guarantee that push rod 42 is connected to always
Cam 41, the brake can also include reset spring 100, which applies elastic force to driving body 80, so that
Push rod 42 is pressed against on cam 41.In another embodiment, reciprocating mechanism 40 can be slider-crank mechanism.
Deceleration mechanism 60 can be any suitable type, as long as transmitting after increasing square that the output torque of motor 30 can be slowed down
To reciprocating mechanism 40.In one embodiment, deceleration mechanism 60 can be planetary gear reducing mechanism.
In one embodiment, in order to obtain bigger transmission ratio, as shown in figure 3, the planetary gear reducing mechanism
It may include primary planet pinion system 61 and secondary planetary gear system 62, wherein the sun gear and electricity of primary planet pinion system 61
The motor shaft 31 of machine 30 is connected, and the planet carrier of primary planet pinion system 61 is connected with the sun gear of secondary planetary gear system 62, and two
The planet carrier of grade planetary gear train 62 is connected with the input terminal (for example, cam 41) of reciprocating mechanism 40, primary planet pinion
It is that 61 gear ring and the gear ring of secondary planetary gear system 62 can be fixed on the back-plate.
In the disclosure, in order to make brake while there is parking braking function, in one embodiment, such as Fig. 6 institute
Show, the brake further includes electromagnetic clutch 70, and electromagnetic clutch 70 is mounted on the motor shaft 31 of motor 30, passes through electromagnetism
Clutch 70 realizes parking braking to the locking of motor shaft 31.
Specifically, when 70 power loss of electromagnetic clutch, electromagnetic clutch 70 is engaged with the motor shaft 31 of locking motor 30, is made
Symmetrical cam is obtained not to be able to rotate, so that mandril 90 is made to be maintained at the position for realizing parking braking, it is immovable, and then make mandril 90
The thrust to brake-shoe 20 is kept, parking braking state is kept.When electromagnetic clutch 70 it is electric when, electromagnetic clutch 70 separation with
Motor shaft 31 is discharged, parking braking releases.
Optionally, electromagnetic clutch 70 may include clutch housing 71, electromagnet, translational friction piece 75, spin friction
Piece 76, outer race 77 and inside race 78.Wherein, electromagnet may include fixed core 72, dynamic iron core 73 and act on dynamic iron core 73
Driving spring.Inside race 78 is connect with motor shaft 31 by spline slide, rotary friction pad 76 be arranged on inside race 78 with
It can be rotated under the drive of motor shaft 31.Outer race 77 is connect with the inner wall of clutch housing 71 by spline slide, translation
Friction plate 75 is arranged on outer race 77 with can be along the axial translation of motor shaft 31.Fixed core 72 and dynamic iron core 73 can be formed
For cyclic structure, and dynamic iron core 73 is set in the outside of motor shaft 31, and fixed core 72 is set in the outside of dynamic iron core 73, so that
The more compact structure of brake, axial dimension are smaller.Magnetic attraction when electromagnet power loss, between fixed core 72 and dynamic iron core 73
It disappearing, dynamic iron core 73 moves right under the action of driving spring, and translational friction piece 75 and rotary friction pad 76 is pushed to engage,
Frictional force between the two makes motor shaft 31 by locking；When electromagnet obtains it is electric when, generated between fixed core 72 and dynamic iron core 73
Magnetic attraction, so that compressible drive spring while dynamic iron core 73 resets, translational friction piece 75 and rotary friction pad 76 separate, the two
Between frictional force disappear to release to the locking of motor shaft 31.
When needing to be implemented parking braking function, motor 30 must be electric, and passes sequentially through deceleration mechanism and symmetrical cam driving top
Bar 90 is mobile, and mandril 90 pushes brake-shoe 20 to compress brake drum 10, (for example, parking brake force reaches mesh when reaching parking requirement
Brake force is marked, and parking brake force increases to the time used in target braking force less than preset time from zero), 30 power loss of motor,
The work of electromagnetic clutch 70 keeps parking brake force with the motor shaft 31 of locking motor 30, executes parking braking function.Releasing is stayed
When vehicle is braked, electromagnetic clutch 70 loses locking power, discharges motor shaft 31.
In order to keep brake structural more compact, electromagnetic clutch 70 can be integrated in inside motor 30, motor 30 can be with
It is fixed on back-plate.
According to another aspect of the present disclosure, a kind of vehicle is provided, which includes drum brake as described above.
The preferred embodiment of the disclosure is described in detail in conjunction with attached drawing above, still, the disclosure is not limited to above-mentioned reality
The detail in mode is applied, in the range of the technology design of the disclosure, a variety of letters can be carried out to the technical solution of the disclosure
Monotropic type, these simple variants belong to the protection scope of the disclosure.
It is further to note that specific technical features described in the above specific embodiments, in not lance
In the case where shield, it can be combined in any appropriate way.In order to avoid unnecessary repetition, the disclosure to it is various can
No further explanation will be given for the combination of energy.
In addition, any combination can also be carried out between a variety of different embodiments of the disclosure, as long as it is without prejudice to originally
Disclosed thought equally should be considered as disclosure disclosure of that.
Claims (14)
1. a kind of drum brake, which is characterized in that including back-plate, brake drum (10), two brake-shoes (20), motors
(30), reciprocating mechanism (40), driving body (80) and two mandrils (90), the brake-shoe (20) are articulated with the system
Dynamic bottom plate, described two mandrils (90) are arranged the two sides in the driving body (80) and are located along the same line, each mandril
(90) one end is connected to the driving body (80), and the other end is connected to corresponding brake-shoe (20), and the motor (30) passes through
The reciprocating mechanism (40) drives the driving body (80) to move back and forth along the direction perpendicular to the mandril (90), described
Driving body (80) can push described two mandrils (90) to move synchronously on the straight line in the opposite direction, so that described two
A brake-shoe (20) is opened.
2. drum brake according to claim 1, which is characterized in that the driving body (80) has along its direction of motion
Tapered shape.
3. drum brake according to claim 2, which is characterized in that the driving body (80) is cone shape.
4. drum brake according to claim 1, which is characterized in that the drum brake further includes return spring
(50), return spring (50) the Xiang Suoshu brake-shoe (20) applies elastic force so that the brake-shoe (20) is pressed against the top
On bar (90).
5. drum brake according to claim 1, which is characterized in that the reciprocating mechanism (40) is cam follower
Mechanism.
6. drum brake according to claim 5, which is characterized in that the cam follower mechanism include cam (41) and
One end of push rod (42), the push rod (42) is connected to the cam (41), and the driving body (80) is arranged in the push rod
(42) the other end, the drum brake further include reset spring (100), reset spring (100) the Xiang Suoshu driving body
(80) apply elastic force, so that the push rod (42) is pressed against on the cam (41).
7. drum brake according to claim 1, which is characterized in that the reciprocating mechanism (40) is crank block
Mechanism.
8. drum brake according to claim 1, which is characterized in that the drum brake further includes electromagnetic clutch
(70), when the electromagnetic clutch (70) power off, electromagnetic clutch (70) engagement is with the electricity of motor described in locking (30)
Arbor (31)；When the electromagnetic clutch (70) are powered, electromagnetic clutch (70) separation is to discharge the motor shaft
(31)。
9. drum brake according to claim 8, which is characterized in that the electromagnetic clutch (70) include electromagnet,
Rotary friction pad (76) and translation friction plate (75), the electromagnet include fixed core (72), dynamic iron core (73) and act on institute
The driving spring of dynamic iron core (73) is stated, the rotary friction pad (76) connect with the motor shaft (31), the translational friction piece
It (75) can be by the driving of the dynamic iron core (73).
10. drum brake according to claim 9, which is characterized in that the electromagnetic clutch (70) further includes clutch
Device shell (71), inside race (78) and outer race (77), the inside race (78) connect with the motor shaft (31) spline, described
Rotary friction pad (76) is arranged on the inside race (78), and the outer race (77) connect with the inner wall spline of the shell,
The clutch housing (71) is fixed relative to the back-plate, and the translational friction piece (75) is arranged in the outer race
(77) on.
11. drum brake according to claim 1, which is characterized in that the drum brake further includes deceleration mechanism,
The motor shaft (31) of the motor (30) is sequentially connected by the deceleration mechanism (60) in the reciprocating mechanism (40)
Input terminal.
12. drum brake according to claim 11, which is characterized in that the deceleration mechanism (60) is planetary gear reduction
Fast mechanism.
13. drum brake according to claim 12, which is characterized in that the planetary gear reducing mechanism includes level-one
Planetary gear train (61) and secondary planetary gear system (62), the sun gear and the motor of the primary planet pinion system (61)
(30) motor shaft (31) is connected, the planet carrier of the primary planet pinion system (61) and the secondary planetary gear system (62)
Sun gear is connected, and the planet carrier of the secondary planetary gear system (62) is connected with the input terminal of the reciprocating mechanism (40).
14. a kind of vehicle, which is characterized in that including drum brake according to claim 1 to 13.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710758838.0A CN109424664B (en) | 2017-08-29 | 2017-08-29 | Drum brake and vehicle |
| PCT/CN2018/102910 WO2019042310A1 (en) | 2017-08-29 | 2018-08-29 | Drum brake and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710758838.0A CN109424664B (en) | 2017-08-29 | 2017-08-29 | Drum brake and vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109424664A true CN109424664A (en) | 2019-03-05 |
| CN109424664B CN109424664B (en) | 2020-08-25 |
Family
ID=65503854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710758838.0A Active CN109424664B (en) | 2017-08-29 | 2017-08-29 | Drum brake and vehicle |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN109424664B (en) |
| WO (1) | WO2019042310A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110454520A (en) * | 2019-07-22 | 2019-11-15 | 高邮市顺达动力机电有限公司 | A kind of novel three brake-shoes drum brake mechanism |
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| DE102006009089A1 (en) * | 2006-02-28 | 2007-08-30 | Robert Bosch Gmbh | Drum brake e.g. simplex brake, for vehicle, has parking brake actuator actuated by electrical drive, where parking brake actuator presses two brake linings against brake drum for locking vehicle |
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|---|---|---|---|---|
| GB293260A (en) * | 1927-12-17 | 1928-07-05 | Poul Arne Scott Iversen | Improvements in and relating to brakes |
| US4699256A (en) * | 1985-05-10 | 1987-10-13 | Haldex Ab | Wedge brake arrangement for heavy road vehicles |
| CN2236571Y (en) * | 1995-09-01 | 1996-10-02 | 李世恩 | Dry multi-sheet electromagnetic brake |
| CN1442621A (en) * | 2002-03-04 | 2003-09-17 | 现代自动车株式会社 | Wedge actuating drum type brake |
| DE102006009088A1 (en) * | 2006-02-28 | 2007-08-30 | Robert Bosch Gmbh | Vehicle drum brake with integrated parking brake, has hydraulic cylinder with pistons for normal braking, and electromechanical expander unit between them, used for parking and emergencies |
| DE102006009089A1 (en) * | 2006-02-28 | 2007-08-30 | Robert Bosch Gmbh | Drum brake e.g. simplex brake, for vehicle, has parking brake actuator actuated by electrical drive, where parking brake actuator presses two brake linings against brake drum for locking vehicle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110454520A (en) * | 2019-07-22 | 2019-11-15 | 高邮市顺达动力机电有限公司 | A kind of novel three brake-shoes drum brake mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019042310A1 (en) | 2019-03-07 |
| CN109424664B (en) | 2020-08-25 |
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