CN107339340A - A kind of drum brake - Google Patents
A kind of drum brake Download PDFInfo
- Publication number
- CN107339340A CN107339340A CN201710694212.8A CN201710694212A CN107339340A CN 107339340 A CN107339340 A CN 107339340A CN 201710694212 A CN201710694212 A CN 201710694212A CN 107339340 A CN107339340 A CN 107339340A
- Authority
- CN
- China
- Prior art keywords
- brake
- slideway
- pin bushing
- piston
- guide pin
- 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.)
- Pending
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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
- F16D51/10—Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like shaped as exclusively radially-movable brake-shoes
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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
- F16H—GEARING
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
- F16H63/30—Constructional features of the final output mechanisms
- F16H63/34—Locking or disabling mechanisms
- F16H63/3416—Parking lock mechanisms or brakes in the transmission
- F16H63/345—Parking lock mechanisms or brakes in the transmission using friction brakes, e.g. a band 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
- F16H—GEARING
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
- F16H63/30—Constructional features of the final output mechanisms
- F16H63/34—Locking or disabling mechanisms
- F16H63/3416—Parking lock mechanisms or brakes in the transmission
- F16H63/3458—Parking lock mechanisms or brakes in the transmission with electric actuating means, e.g. shift by wire
- F16H63/3466—Parking lock mechanisms or brakes in the transmission with electric actuating means, e.g. shift by wire using electric motors
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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
- F16D2051/001—Parts or details of drum brakes
Abstract
The invention discloses a kind of drum brake, it includes electronic brake device, electronic brake device includes slideway carrier, driving part and execution unit, slideway carrier is included by both ends through the piston slideway outside slideway carrier and one end through the middle part of piston slideway, T-shaped slideway of its other end through the guide pin bushing slideway composition outside slideway carrier, guide pin bushing slide fit is in guide pin bushing slideway, the front end of guide rod is rotatably connected in screwed hole by the rear end of guide pin bushing, and the rear end of guide rod and the output shaft of actuating motor are connected；Left hand piston and right hand piston distinguish slide fit in left hand piston slideway and right hand piston slideway, the contact site of the inner end of the leading section of guide pin bushing and left hand piston and right hand piston is the inclined plane being mutually adapted, it has the features such as simple operation is laborsaving, and parking is reliable in time.
Description
Technical field
The present invention relates to automobile brake technical field.
Background technology
At present, automobile parking drum brake system is brake handle, drag-line, brakes the manual parking system that torque arm is formed by connecting
Following deficiency be present in dynamic device, manual parking brake apparatus：Need driver manually operated when the 1st, per task, it is cumbersome,
In automobile hill start, operation is excessively complicated, often causes automobile to slip by slope because unmanageable, potential safety hazard be present；2nd, at big angle
During the domatic upper parking of degree, operation is laborious, and parking is relatively difficult, while is often difficult to obtain sufficiently large brake force to ensure vapour
, potential safety hazard be present in the reliable parking of car；No matter the 3rd, level land or domatic, parking brake handle grip is pulled to maximum row by driver habit
Journey, it is ensured that the reliable parking of automobile, so, in the case of the parking braking of level land, increase the automobile systems such as brake, brake cable
, potential safety hazard be present in the abrasion and deformation of dynamic component of machine；4th, manual braking device usage time is too long, in brake cable
Cable wire meeting anamorphic stretching, influences usability, while therefore, it is difficult to obtain enough brake force for device；5th, manual parking brake handle
With larger operating mechanism, larger interior space is occupied；6th, because forgetting to leave pulling the hand brake after driver's parking, forgetting
It is of common occurrence to unclamp the situation of parking brake driving vehicle traveling, causes automobile to be damaged.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of drum brake, and it has, and simple operation is laborsaving, parking and
When it is reliable the features such as.
In order to solve the above technical problems, the technical solution used in the present invention is：
A kind of drum brake, including a brake drum with inner circle annular rubbing surface and two rub with cylindrical arc
The brake-shoe in wiping face, two brake-shoes are symmetrical set on brake backing plate, so that two circular arc rubbing surface and system
Dynamic drum inner circle annular rubbing surface is corresponding, and the wherein corresponding one end of two brake-shoes is service brake force side, and two are driven a vehicle
The hydraulic shunt pump by service braking device hydraulic-driven is provided between braking force side, the service brake of two brake-shoes in left and right is applied
Together with power end is brought into close contact by reset tension spring with the left end and right-hand member of hydraulic shunt pump respectively, the left end and right-hand member of hydraulic shunt pump
During stretching, the service brake force side of two brake-shoes in left and right is promoted respectively, makes two brake-shoes using the respective other end as branch
Point to both sides open so that the rubbing surface of two brake-shoes overlayed with the rubbing surface of brake drum together with produce service brake effect
Fruit, it also includes electronic brake device, and electronic brake device includes slideway carrier, driving part and execution unit,
Slideway carrier is included by both ends through the piston slideway outside slideway carrier and one end through the middle part of piston slideway, and its is another
The T-shaped slideway that one end forms through the guide pin bushing slideway outside slideway carrier, piston slideway are divided into using guide pin bushing slideway center as boundary
Left hand piston slideway and right hand piston slideway, driving part include guide pin bushing, guide rod and actuating motor, and guide pin bushing slide fit is in guide pin bushing slideway
It is interior, and provided with the guide pin bushing guide frame for preventing that guide pin bushing from rotating in a circumferential direction, screwed hole is provided with guide pin bushing axle center, the front end of guide rod is by guide pin bushing
Rear end be rotatably connected in screwed hole, the output shaft of the rear end of guide rod and actuating motor is connected；Execution unit is lived including left side
Plug and right hand piston, left hand piston and right hand piston difference slide fit are provided with left hand piston slideway and right hand piston slideway
Prevent the piston guide structure that left hand piston and right hand piston rotate in a circumferential direction, the leading section of guide pin bushing and left hand piston and right hand piston
The contact site of inner end be the inclined plane being mutually adapted, guide pin bushing leading section to the inner end direction of two pistons move when,
The intermolecular forces of inclined plane change into the radial thrust of left hand piston and right hand piston, and two corresponding other ends of brake-shoe are
Parking braking force side, the parking braking force side of the outer ends of two pistons respectively with two brake-shoes are connected, two pistons
When both sides are stretched out to the left and right, the parking braking force side of two brake-shoes is promoted respectively, makes two brake-shoes with respective driving
It is that fulcrum opens to both sides to brake force side, so that together with the rubbing surface of two brake-shoes overlays with the rubbing surface of brake drum
Produce parking braking effect.
The present invention further improvement is that：
The structure that the outer end of two pistons is connected with the parking braking force side of two brake-shoes respectively is：Two brakings
Extension spring is provided between the parking braking force side of hoof, so that the parking braking force side of two brake-shoes and the outer end of two pistons
It is brought into close contact together.
For circle, the guide pin bushing guide frame being provided between guide pin bushing and guide pin bushing slideway is guide pin bushing the cross section of slideway：Slided in guide pin bushing
The madial wall in road is arranged with two axially directed grooves, and guide pin bushing lateral wall is arranged with the cunning being adapted with two axially directed grooves
Block.
Left hand piston slideway and right hand piston the cross section of slideway are circle, prevent left hand piston and right hand piston rotates in a circumferential direction
Piston guide structure is：It is respectively provided with brake-shoe link slot in the outer end of left hand piston and right hand piston, two brake-shoes are stayed
Car braking force side is respectively provided with the embedded type slide block being adapted with brake-shoe link slot.
It also includes guide rod supports body, and guide rod supports body is perforated provided with guide rod, is put down in guide rod perforation provided with bearings
Platform, guide rod are provided with the support plate concentric with guide rod, and guide rod supports body front end is fixedly connected on one with slideway carrier thread seal
Rise, be arranged on the plane needle roller thrust bearing between support plate and bearings platform by guide rod supports guide rod perforation in, lead
Rod rear end portion passes guide rod perforation and the output shaft direct connection of actuating motor, and actuating motor is fixed on guide rod supports by motor support base
On body.
Slideway carrier is provided with driving part peep hole, and driving part peep hole connects with T-shaped slideway in right-angled intersection, driving
Part peep hole is provided with blanking cover.
Dust cover is respectively equipped between slideway carrier and left hand piston and right hand piston.
It is using beneficial effect caused by above-mentioned technical proposal：
The present invention is by setting electronic brake device, the company using actuating motor by driving part and guide pin bushing slideway
The torsion of motor is changed into radial thrust by binding structure, promotes left hand piston and right hand piston, the two is produced radial thrust, from
And parking braking effect is produced together with promoting two brake-shoes to be overlayed with the rubbing surface of brake drum, torque conversion is reliable, due to
Using actuating motor torsion as parking brake force, torque output is stable in time, and rigidity is big, will not vary with each individual, and occurs inclined
Difference；The brake force of enough guarantee vehicle parking safeties can be provided, parking system can be adjusted by adjusting actuating motor electric current
The size of power, so as to realize the smooth starting of vehicle, due to eliminating parking brake handle grip, it the substitute is a parking system
Dynamic electronic button, driver need not arduously draw fixed handle, simple laborsaving；It has simple operation laborsaving, and parking is reliable in time
The features such as.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the structural representation of Fig. 1 middle rolling car state, electronic holding brake devices；
The structural representation of electronic brake device when Fig. 3 is parked state in Fig. 1；
Fig. 4 is the structural representation that guide pin bushing coordinates with guide pin bushing slideway in Fig. 1.
In the accompanying drawings：1st, brake drum；2nd, brake-shoe；2-1, brake-shoe service brake force side；2-2, brake-shoe parking system
Dynamic force side；3rd, brake backing plate；4th, hydraulic shunt pump；5th, actuating motor；6th, slideway carrier；6-1, axially directed groove；6-2, drive
Dynamic component peep hole；6-3, blanking cover；7th, left hand piston；8th, right hand piston；9th, guide pin bushing；9-1, guide pin bushing sliding block；10th, guide rod；10-1、
Support plate；11st, guide rod supports body；11-1, guide rod perforation；11-2, bearings platform；12nd, plane needle roller thrust bearing；13、
Motor support base；14th, extension spring.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention will be described in further detail.
From the embodiment shown in Fig. 1-3, the present embodiment includes a He of brake drum 1 with inner circle annular rubbing surface
Two brake-shoes 2 with cylindrical arcuate friction surface, two brake-shoes 2 are symmetrical set on brake backing plate 3, so that its
Two circular arc rubbing surfaces are corresponding with the inner circle annular rubbing surface of brake drum 1, and the wherein corresponding one end of two brake-shoes 2 is row
Car brakes force side 2-1, and the hydraulic shunt pump by service braking device hydraulic-driven is provided between two service brake force side 2-1
The left end and right-hand member of 4, the service brake force side 2-1 of the brake-shoe 2 of left and right two respectively by reset tension spring and hydraulic shunt pump 4 are tight
It is closely connected to be combined, when the left end and right-hand member of hydraulic shunt pump 4 stretch out, promote the service brake of two brake-shoes 2 in left and right to apply respectively
Power end 2-1, two brake-shoes 2 are made to be opened using the respective other end as fulcrum to both sides, so that the rubbing surface of two brake-shoes 2
Service brake effect is produced together with being overlayed with the rubbing surface of brake drum 1, it also includes electronic brake device, electronic parking
Brake apparatus includes slideway carrier 6, driving part and execution unit, and slideway carrier 6 is included by both ends through outside slideway carrier 6
The piston slideway in portion and one end are through the middle part of piston slideway, and its other end is through the guide pin bushing slideway outside slideway carrier 6
The T-shaped slideway of composition, piston slideway are divided into left hand piston slideway and right hand piston slideway, drive division by boundary of guide pin bushing slideway center
Part includes guide pin bushing 9, guide rod 10 and actuating motor 5, and the slide fit of guide pin bushing 9 is in guide pin bushing slideway, and provided with preventing what guide pin bushing 9 from rotating in a circumferential direction
Guide pin bushing guide frame, screwed hole is provided with the axle center of guide pin bushing 9, and the front end of guide rod 10 is rotatably connected in screwed hole by the rear end of guide pin bushing 9, led
The rear end of bar 10 is connected with the output shaft of actuating motor 5；Execution unit includes left hand piston 7 and right hand piston 8, and left side is lived
Plug 7 and right hand piston 8 distinguish slide fit in left hand piston slideway and right hand piston slideway, and provided with preventing left hand piston 7 and the right side
The piston guide structure that side piston 8 rotates in a circumferential direction, the leading section of guide pin bushing 9 and left hand piston 7 connect with the inner end of right hand piston 8
Contact portion position is the inclined plane being mutually adapted, the leading section of guide pin bushing 9 to the inner end direction of two pistons move when, make between inclined plane
The radial thrust of left hand piston 7 and right hand piston 8 is firmly changed into, the corresponding other end of two brake-shoes 2 is parking braking
Force side 2-2, the parking braking force side 2-2 of the outer ends of two pistons respectively with two brake-shoes 2 are connected, two pistons to
When the left and right sides is stretched out, the parking braking force side 2-2 of two brake-shoes 2 is promoted respectively, makes two brake-shoes 2 with respective row
Car braking force side 2-1 is that fulcrum opens to both sides, so that the friction face pressure of the rubbing surface of two brake-shoes 2 and brake drum 1
Stick together and produce parking braking effect.
The outer end of two pistons is respectively with the parking braking force side 2-2 of two brake-shoes 2 structures being connected：Two
Extension spring 14 is provided between the parking braking force side 2-2 of brake-shoe 2 so that the parking braking force side 2-2 of two brake-shoes 2 with
The outer end of two pistons is brought into close contact together.
For circle, the guide pin bushing guide frame being provided between guide pin bushing 9 and guide pin bushing slideway is guide pin bushing the cross section of slideway：Slided in guide pin bushing
The madial wall in road is arranged with two axially directed groove 6-1, and the lateral wall of guide pin bushing 9 is arranged with to be adapted with two axially directed grooves
Sliding block 9-1.
Left hand piston slideway and right hand piston the cross section of slideway are circle, prevent left hand piston 7 and right hand piston 8 from rotating in a circumferential direction
Piston guide structure be：Brake-shoe link slot, two brake-shoes 2 are respectively provided with the outer end of left hand piston 7 and right hand piston 8
Parking braking force side 2-2 be respectively provided with the embedded type slide block 2-3 being adapted with brake-shoe link slot.
It also includes guide rod supports body 11, and guide rod supports body 11 is provided with guide rod perforation 11-1, is set in guide rod perforation 11-1
There is bearings platform 11-2, guide rod 10 is provided with the support plate 10-1 concentric with guide rod 10, and guide rod supports body front end 11 is with sliding
The thread seal of road carrier 6 is fixed together, and the plane being arranged between support plate 10-1 and bearings platform 11-2 pushes away
Guide rod 10 is supported in guide rod perforation 11-1 by power needle bearing 12, and the rearward end of guide rod 10 passes guide rod perforation 11-1 and performs electricity
The output shaft direct connection of machine 5, actuating motor 5 are fixed on guide rod supports body 11 by motor support base 13.
Slideway carrier 6 is provided with driving part peep hole 6-2, driving part peep hole 6-2 and connected with T-shaped slideway in right-angled intersection
Logical, driving part peep hole 6-2 is provided with blanking cover 6-3.
Dust cover is respectively equipped between slideway carrier 6 and left hand piston 7 and right hand piston 8.
Operation principle：
The present apparatus controls the (control of startup and supply current size to actuating motor 5 by automobile CAN-bus control system
System), different control modes is realized by the software programming to control system, is not belonging to the scope involved by the application, below
By the explanation to one of which control method, operation principle and process to the present apparatus carry out exhibition and stated.
Parking brake button is pressed, operation signal feeds back to the ECU by automobile CAN-bus control system, by electricity
Control unit control actuating motor 5 drives guide rod 10 to rotate, and makes the guiding (shown in Fig. 4) of guide pin bushing 9 along the upward straight line of guide pin bushing slideway
Motion, the leading section of guide pin bushing 9 to the inner end direction of two pistons move when, left hand piston 7 and right hand piston 8 is produced to both sides
Radial thrust, left hand piston 7 and right hand piston 8 promote brake-shoe 2 (shown in Fig. 1) again, make two brake-shoes 2 with respective driving
It is that fulcrum opens to both sides to brake force side 2-1, so that the rubbing surface of the rubbing surface of two brake-shoes 2 and brake drum 1 overlays
Parking braking effect is produced together, completes parking function.
(parking braking is released when vehicle start), and after stepping on clutch pedal, EPB computers are surveyed by ECU control units
The brake force for needing to apply is calculated, is communicated by high-speed CAN and engine computer to know the size of engine traction.EPB electricity
Brain calculates the increase of engine traction automatically, reduces brake force accordingly, reversely drives guide rod 10 to rotate by actuating motor 5,
Guide pin bushing 9 is set to move along a straight line downwards, brake-shoe 2 is promoted left hand piston 7 and right hand piston 8 to make its fitting by after the pulling force of extension spring 14
(shown in Fig. 2).When tractive force overcomes sliding force enough, EPB computers driving actuating motor 5 releases braking, so as to realize vehicle
Smooth starting.
By the parking electric current for adjusting actuating motor 5, you can the adjustment rubbing surface of two brake-shoes 2 and rubbing for brake drum 1
The size of the laminate pressure (frictional force) in wiping face.
Claims (7)
1. a kind of drum brake, including a brake drum (1) with inner circle annular rubbing surface and two are with cylindrical arc
The brake-shoe (2) of rubbing surface, two brake-shoes (2) are symmetrical set on brake backing plate (3), so that two is justified
Arcuate friction surface is corresponding with brake drum (1) inner circle annular rubbing surface, and two wherein corresponding one end of the brake-shoe (2) are
Service brake force side (2-1), it is provided with by service braking device hydraulic-driven between two service brake force sides (2-1)
Hydraulic shunt pump (4), the service brake force side (2-1) of the brake-shoe (2) of left and right two is respectively by reset tension spring and institute
State hydraulic shunt pump (4) left end be brought into close contact with right-hand member together with, when the left end and right-hand member of the hydraulic shunt pump (4) stretch out, point
Not Tui Dong left and right two brake-shoes (2) service brake force side (2-1), make two brake-shoes (2) with respective another
Hold and opened for fulcrum to both sides, so that the rubbing surface of the rubbing surface and the brake drum (1) of two brake-shoes (2) overlays
Service brake effect is produced together, it is characterised in that：It also includes electronic brake device, the electronic brake dress
Put including slideway carrier (6), driving part and execution unit, the slideway carrier (6) is included by both ends through the slideway
The outside piston slideway of carrier (6) and one end are through the middle part of piston slideway, and its other end is through the slideway carrier (6)
The T-shaped slideway of outside guide pin bushing slideway composition, the piston slideway using guide pin bushing slideway center be boundary be divided into left hand piston slideway with
Right hand piston slideway, the driving part include guide pin bushing (9), guide rod (10) and actuating motor (5), guide pin bushing (9) slide fit in
In the guide pin bushing slideway, and provided with the guide pin bushing guide frame for preventing that the guide pin bushing (9) from rotating in a circumferential direction, in the guide pin bushing (9) axle center
Provided with screwed hole, the front end of guide rod (10) is rotatably connected in the screwed hole by the rear end of the guide pin bushing (9), the guide rod (10)
Rear end and the output shaft of the actuating motor (5) are connected；The execution unit includes left hand piston (7) and right hand piston
(8), the left hand piston (7) and right hand piston (8) respectively slide fit in the left hand piston slideway and right hand piston slideway, and
Provided with the piston guide structure for preventing that the left hand piston (7) and right hand piston (8) from rotating in a circumferential direction, the front end of the guide pin bushing (9)
The contact site of portion and the left hand piston (7) and the inner end of right hand piston (8) is the inclined plane being mutually adapted, the guide pin bushing
(9) leading section to the inner end direction of two pistons move when, the intermolecular forces of the inclined plane change into left hand piston
(7) and right hand piston (8) radial thrust, the corresponding other end of two brake-shoes (2) is parking braking force side (2-
2), parking braking force side (2-2) of the outer end of two pistons respectively with two brake-shoes (2) is connected, two
During piston both sides stretching to the left and right, the parking braking force side (2-2) of two brake-shoes (2) is promoted respectively, makes two institutes
It is that fulcrum opens to both sides that brake-shoe (2), which is stated, with respective service brake force side (2-1), so that two brake-shoes
(2) rubbing surface produces parking braking effect together with being overlayed with the rubbing surface of the brake drum (1).
A kind of 2. drum brake according to claim 1, it is characterised in that：The outer end of two pistons respectively with
The structure of parking braking force side (2-2) connection of two brake-shoes (2) is：The parking system of two brake-shoes (2)
Extension spring (14) is provided between dynamic force side (2-2), so that the parking braking force side (2-2) and two of two brake-shoes (2)
The outer end of the individual piston is brought into close contact together.
A kind of 3. drum brake according to claim 2, it is characterised in that：The guide pin bushing the cross section of slideway is circle,
The guide pin bushing guide frame being provided between the guide pin bushing (9) and the guide pin bushing slideway is：It is symmetrical in the madial wall of the guide pin bushing slideway
Provided with two axially directed grooves (6-1), guide pin bushing (9) lateral wall is arranged with what is be adapted with two axially directed grooves
Sliding block (9-1).
A kind of 4. drum brake according to claim 3, it is characterised in that：The left hand piston slideway and right hand piston
The cross section of slideway is circle, prevents that the piston guide structure that the left hand piston (7) and right hand piston (8) rotate in a circumferential direction from being：Institute
The outer end for stating left hand piston (7) and right hand piston (8) is respectively provided with brake-shoe link slot, the parking of two brake-shoes (2)
Braking force side (2-2) is respectively provided with the embedded type slide block (2-3) being adapted with the brake-shoe link slot.
A kind of 5. drum brake according to claim 4, it is characterised in that：It also includes guide rod supports body (11), institute
Guide rod supports body (11) is stated provided with guide rod perforation (11-1), bearings platform (11- is provided with guide rod perforation (11-1)
2), the guide rod (10) is provided with the support plate (10-1) concentric with the guide rod (10), the guide rod supports body front end (11)
It is fixed together with slideway carrier (6) thread seal, is arranged on support plate (10-1) and bearings platform
The guide rod (10) is supported in the guide rod perforation (11-1) by the plane needle roller thrust bearing (12) between (11-2), described
Guide rod (10) rearward end passes guide rod perforation (11-1) and the output shaft direct connection of the actuating motor (5), the actuating motor (5)
It is fixed on by motor support base (13) on the guide rod supports body (11).
A kind of 6. drum brake according to claim 5, it is characterised in that：The slideway carrier (6) is provided with drive division
Part peep hole (6-2), the driving part peep hole (6-2) connect with the T-shaped slideway in right-angled intersection, the driving part
Peep hole (6-2) is provided with blanking cover (6-3).
A kind of 7. drum brake according to claim 6, it is characterised in that：The slideway carrier (6) and the left side
Dust cover is respectively equipped between piston (7) and right hand piston (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710694212.8A CN107339340A (en) | 2017-08-15 | 2017-08-15 | A kind of drum brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710694212.8A CN107339340A (en) | 2017-08-15 | 2017-08-15 | A kind of drum brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107339340A true CN107339340A (en) | 2017-11-10 |
Family
ID=60217901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710694212.8A Pending CN107339340A (en) | 2017-08-15 | 2017-08-15 | A kind of drum brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107339340A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115217863A (en) * | 2021-04-20 | 2022-10-21 | 三菱电机株式会社 | Brake device and elevator hoist |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1263999A (en) * | 1969-03-25 | 1972-02-16 | Automotive Prod Co Ltd | Improvements in or relating to brakes for vehicles |
| GB1427521A (en) * | 1972-05-04 | 1976-03-10 | Girling Ltd | Shoe drum brakes for vehicles |
| CN102758867A (en) * | 2012-07-09 | 2012-10-31 | 青岛智远汽车部件有限公司 | Electronic wedge drum brake |
| CN204004109U (en) * | 2014-08-13 | 2014-12-10 | 辽宁曙光汽车集团股份有限公司 | Manually adjustment type Parking Brake |
| CN207049229U (en) * | 2017-08-15 | 2018-02-27 | 霸州市华诚汽车制动器有限公司 | A kind of drum brake |
-
2017
- 2017-08-15 CN CN201710694212.8A patent/CN107339340A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1263999A (en) * | 1969-03-25 | 1972-02-16 | Automotive Prod Co Ltd | Improvements in or relating to brakes for vehicles |
| GB1427521A (en) * | 1972-05-04 | 1976-03-10 | Girling Ltd | Shoe drum brakes for vehicles |
| CN102758867A (en) * | 2012-07-09 | 2012-10-31 | 青岛智远汽车部件有限公司 | Electronic wedge drum brake |
| CN204004109U (en) * | 2014-08-13 | 2014-12-10 | 辽宁曙光汽车集团股份有限公司 | Manually adjustment type Parking Brake |
| CN207049229U (en) * | 2017-08-15 | 2018-02-27 | 霸州市华诚汽车制动器有限公司 | A kind of drum brake |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115217863A (en) * | 2021-04-20 | 2022-10-21 | 三菱电机株式会社 | Brake device and elevator hoist |
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