CN207131763U - A kind of EPB - Google Patents
A kind of EPB Download PDFInfo
- Publication number
- CN207131763U CN207131763U CN201721144830.7U CN201721144830U CN207131763U CN 207131763 U CN207131763 U CN 207131763U CN 201721144830 U CN201721144830 U CN 201721144830U CN 207131763 U CN207131763 U CN 207131763U
- Authority
- CN
- China
- Prior art keywords
- braking
- brake
- forehoof
- hoof
- rotating shaft
- 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.)
- Active
Links
Abstract
The utility model discloses a kind of EPB, including brake drum, brake backing plate, pass through hoof after the symmetrical spacing braking forehoof and braking on brake backing plate of stopping means, between braking forehoof one end corresponding with hoof after braking brake slack adjuster and the first reset tension spring are provided with space, it is holding brake device drive end to brake the forehoof other end corresponding with hoof after braking, the both ends are driven by holding brake device and the second reset tension spring acts on and opens and bounce back to both sides, and holding brake device is self energizing effort mechanical structure：Including force lever and two-way torsional, the lever that exerts a force includes support rotating shaft, one end of support rotating shaft is radially provided with parking braking pull bar, the other end of support rotating shaft is provided with two-way torsional, rotating shaft is supported to be rotatablely connected with brake backing plate, the space after two-way torsional is located at the braking forehoof end in front of brake backing plate and braked between hoof end.It has the characteristics of parking brake cable mechanical transfer efficiency high.
Description
Technical field
It the utility model is related to a kind of EPB
Background technology
The N1 class commercial car of traditional mode, it is common that wheel side park mode, because wheel rim is too small, constrain wheel side parking
Bulk, the parking moment of friction parameter of EPB is associated with the diameter of brake drum, and rim diameter is small, braking
Bulging diameter is naturally small, then the moment of friction of wheel side EPB is naturally also small (can not to meet that the full load condition of vehicle is stayed
Slope requires), static friction torque technical parameter is relatively low, and GB7258 laws and regulations requirements 20%, current Europe, the United States, the vehicle parking of day
Standard stays ratio of slope (climb and fall) >=30% to be fully loaded, and the vehicle parking braking level in China is relatively low, is unable to reach American-European-Japanese
Standard, current N1 class commercial car generally existing overloadings, 20% is unable to reach in ratio of slope, and main engine plants and user are intended to
By one class of the lifting in ratio of slope of vehicle, in view of this big requirement background, and have developed SCCPB (S types cam axle type centers
EPB) meet being actually needed for main engine plants and user.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of EPB, and it has parking brake cable mechanical
The characteristics of transmission efficiency is high.
In order to solve the above technical problems, technical solution adopted in the utility model is：
A kind of EPB, including it is brake drum, brake backing plate, symmetrical spacing in brake by stopping means
Hoof after braking forehoof and braking on bottom plate, braking is provided with space between braking forehoof one end corresponding with hoof after braking
Slack adjuster and the first reset tension spring, the braking forehoof other end corresponding with hoof after braking drive for holding brake device
End, the both ends are driven by holding brake device and the second reset tension spring acts on and opens and bounce back to both sides, and holding brake device is
Self energizing effort mechanical structure：Including force lever and two-way torsional, force lever includes support rotating shaft, supports one end footpath of rotating shaft
To provided with parking braking pull bar, the other end of rotating shaft is supported to be provided with two-way torsional, support rotating shaft rotates with brake backing plate to be connected
Connect, parking braking pull bar is located at the rear of brake backing plate, and two-way torsional is located at the braking forehoof end in front of brake backing plate
Space behind portion and braking between hoof end, two-way torsional are symmetrically arranged a pair of cams centered on supporting rotating shaft, when
When pulling parking braking pull bar, for two-way torsional to support rotating shaft as fulcrum, a pair of cams promotes braking forehoof end respectively
Portion and hoof end after braking, together with hoof opens overlayed with brake drum laterally after driving braking forehoof and braking, so as to produce
Parking braking effect.
The utility model further improvement is that：
A pair of cams of two-way torsional is S type involute cams.
Brake backing plate is provided with axle sleeve, and support rotating shaft is rotatablely connected with axle sleeve.
It is using beneficial effect caused by above-mentioned technical proposal：
The utility model is by setting the self energizing effort mechanical structure being made up of force lever and two-way torsional to improve braking
Effect, brake force caused by parking handle is amplified by the lever principle for the lever that exerts a force, it is convex by symmetrically arranged a pair
Hoof opens generation brake force laterally after wheel drive brakes forehoof and braking, improve after braking forehoof and braking hoof and brake drum it
Between frictional force, it is only necessary to an EPB can complete central parking function.There is parking brake cable machinery to pass for it
The characteristics of passing efficiency high.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is Fig. 1 left view；
Fig. 3 is Fig. 1 rearview.
In the accompanying drawings：1st, brake drum；2nd, brake backing plate；3rd, stopping means；4th, forehoof is braked；5th, hoof after braking；6th, make
Dynamic slack adjuster；7th, the first reset tension spring；8th, the second reset tension spring；9th, rotating shaft is supported；10th, parking braking pull bar；11st, it is two-way
Torsional；12nd, axle sleeve；13rd, the power transmission shaft in differential mechanism；14th, differential mechanism axle housing；15th, row angular contact roller bearing；
Embodiment
The utility model is further elaborated below in conjunction with the drawings and specific embodiments.
From the embodiment shown in 1-3, the present embodiment includes brake drum 1, brake backing plate 2, by the left side of stopping means 3
Hoof 5 after the right symmetrical spacing braking forehoof 4 on brake backing plate 2 and braking, it is corresponding with hoof 5 after braking in braking forehoof 4
One end between be provided with the reset tension spring 7 of brake slack adjuster 6 and first in space, braking forehoof 4 with brake after hoof 5 it is corresponding
The other end be holding brake device drive end, the both ends are driven by holding brake device and the second reset tension spring 8 is acted on to two
Side is opened and retraction, and holding brake device is self energizing effort mechanical structure：Including force lever and two-way torsional, exert a force lever bag
Support rotating shaft 9 is included, one end of support rotating shaft 9 is radially provided with parking braking pull bar 10, and the other end of support rotating shaft 9 is provided with two-way torsion
Power block 11, support rotating shaft 9 are rotatablely connected with brake backing plate 2, and parking braking pull bar 10 is located at the rear of brake backing plate 2, double
Space after being located at the braking end of forehoof 4 in the front of brake backing plate 2 to torsional 11 and brake between the end of hoof 5, two-way torsion
Power block 11 is symmetrically arranged a pair of cams centered on supporting rotating shaft 9, when pulling parking braking pull bar 10, two-way torsional
11 to support rotating shaft 9 as fulcrum, and a pair of cams promotes the braking end of forehoof 4 and the end of hoof 5 after braking respectively, drives braking
Together with hoof 5 opens overlayed with brake drum 1 laterally after forehoof 4 and braking, so as to produce parking braking effect.
A pair of cams of two-way torsional 11 is S type involute cams.
Brake backing plate 2 is provided with axle sleeve 12, and support rotating shaft 9 is rotatablely connected with axle sleeve 12.
Installation method：
Row angular contact roller bearing 15 is arranged in the centre bore of differential mechanism axle housing 14 first, then by brake bottom
Plate 2 is arranged on by hexagon socket cap head screw on the flange face of differential mechanism axle housing 14, and brake drum 1 thirdly is passed through into interior hexagonal
Fillister head screw is fixed on one with the power transmission shaft 13 in differential mechanism, and power transmission shaft 13 finally is inserted into row angular contact roller
In the centre bore of bearing 15, it is tightly secured in by the lock-nut at differential mechanism end in differential mechanism.
The course of work：
Parking function pull-up：After driver's pull-up parking brake handle grip sub-unit, the input power of parking brake handle grip passes through
Pulling force is passed to parking drag-line by the gearratio of parking handle, and pulling force is passed to parking braking pull bar 10, parking by parking drag-line
After brake bar 10 receives the pulling force (input power) of parking drag-line, support rotating shaft 9 is driven to rotate certain angle, S type cams
Axle rotates after the torque by parking braking pull bar 10, and hoof 5 presses to after two S types involute cams will brake forehoof 4 and braking
Brake drum 1, after brake clearance eliminates, the brake drum 1 of embracing of hoof 5 tightly is allowed to stop operating after braking forehoof 4 and braking, completes
Parking braking function.
Parking braking function discharges：After parking brake handle grip sub-unit is put down, parking input power releases, and parking drag-line resets
Afterwards, parking brake cable releases to the input power of parking braking pull bar 10, and hoof 5 resets second and drawn after braking forehoof 4 and braking
Under the pulling force effect of spring 8, hoof 5 resets after S types camshaft, braking forehoof 4 and braking, brakes hoof 5 and braking after forehoof 4 and braking
Drum 1 departs from, and parking braking function releases.
Claims (3)
1. a kind of EPB, including it is brake drum (1), brake backing plate (2), symmetrical spacing by stopping means (3)
Hoof (5) after braking forehoof (4) and braking on brake backing plate (2), in the braking forehoof (4) and hoof (5) phase after braking
Be provided with brake slack adjuster (6) and the first reset tension spring (7) between corresponding one end in space, the braking forehoof (4) with
The corresponding other end of hoof (5) is holding brake device drive end after braking, and the both ends are by holding brake device driving and second
Reset tension spring (8), which acts on, to be opened and bounces back to both sides, it is characterised in that：The holding brake device is self energizing effort mechanical structure：
Including force lever and two-way torsional, the force lever includes support rotating shaft (9), one end footpath of the support rotating shaft (9)
Two-way torsional (11), the support rotating shaft are provided with to the other end provided with parking braking pull bar (10), the support rotating shaft (9)
(9) it is rotatablely connected with brake backing plate (2), the parking braking pull bar (10) is located at the rear of brake backing plate (2), described double
Braking forehoof (4) end that is located to torsional (11) in front of brake backing plate (2) and hoof (5) end after the braking it
Between space, the two-way torsional (11) is symmetrically arranged a pair of cams centered on support rotating shaft (9), works as pulling
During parking braking pull bar (10), the two-way torsional (11) supports rotating shaft (9) as fulcrum with described, the pair of
Cam promotes braking forehoof (4) end and hoof (5) end after the braking respectively, after driving braking forehoof (4) and braking
Hoof (5) opens laterally overlayed with the brake drum (1) together with, so as to produce parking braking effect.
A kind of 2. EPB according to claim 1, it is characterised in that：A pair of the two-way torsional (11) are convex
Take turns as S type involute cams.
A kind of 3. EPB according to claim 2, it is characterised in that：The brake backing plate (2) is provided with axle
Cover (12), the support rotating shaft (9) is rotatablely connected with axle sleeve (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721144830.7U CN207131763U (en) | 2017-09-08 | 2017-09-08 | A kind of EPB |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721144830.7U CN207131763U (en) | 2017-09-08 | 2017-09-08 | A kind of EPB |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207131763U true CN207131763U (en) | 2018-03-23 |
Family
ID=61637833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721144830.7U Active CN207131763U (en) | 2017-09-08 | 2017-09-08 | A kind of EPB |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207131763U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109570446A (en) * | 2018-11-20 | 2019-04-05 | 沈阳航发精密铸造有限公司 | A kind of investment casting mold involute cam liftout attachment |
| WO2022065071A1 (en) * | 2020-09-28 | 2022-03-31 | いすゞ自動車株式会社 | Drum brake device for vehicle |
-
2017
- 2017-09-08 CN CN201721144830.7U patent/CN207131763U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109570446A (en) * | 2018-11-20 | 2019-04-05 | 沈阳航发精密铸造有限公司 | A kind of investment casting mold involute cam liftout attachment |
| WO2022065071A1 (en) * | 2020-09-28 | 2022-03-31 | いすゞ自動車株式会社 | Drum brake device for vehicle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203404328U (en) | Integrated EPB driving device for parking braking | |
| CN203836031U (en) | Pneumatic floating caliper disc brake with intelligent compensation device | |
| CN207131763U (en) | A kind of EPB | |
| CN102821985A (en) | Camber angle adjustment device | |
| CN203625676U (en) | Decelerating clutch for washing machine | |
| CN204573076U (en) | A kind of planetary gear type parking and braking mechanism | |
| CN103395467A (en) | Linkage brake device of two-wheel vehicle and two-wheel vehicle with front wheel and rear wheel carrying out brake in linkage mode | |
| CN203516530U (en) | Wedge block type brake for vehicle | |
| CN202193067U (en) | Service brake device for tractor front wheels | |
| CN103395414B (en) | Linkage brake balancing structure of two-wheel vehicle | |
| CN203580927U (en) | Two wheeler linkage brake balance structure | |
| CN207089274U (en) | A kind of disc type central parking brake assembly | |
| CN201506343U (en) | Novel parking brake of disc type tractor | |
| CN104477156B (en) | Hydraulic braking device special for heavy-duty truck | |
| CN204452419U (en) | The interlocking system of a kind of parking brake and service brake one | |
| CN203581284U (en) | Two wheeler linkage brake apparatus and front and rear wheel linkage brake two wheeler | |
| CN203283344U (en) | Brake system of electric car | |
| CN202429181U (en) | Automatic parking device for driving axle of forklift | |
| CN203581287U (en) | Two wheeler oil pump action limit mechanism | |
| CN202847938U (en) | Electro-tricycle brake mechanism | |
| CN207131760U (en) | A kind of EPB | |
| CN206175536U (en) | Relieve arresting gear | |
| CN2140326Y (en) | Drum-like hand brake | |
| CN206234324U (en) | A kind of clutch, planet gear clutch and punch press | |
| CN2228577Y (en) | Two-direction automatic releasing disc brake |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |