CN102913569A - Plane radial movement brake - Google Patents
Plane radial movement brake Download PDFInfo
- Publication number
- CN102913569A CN102913569A CN2012104316841A CN201210431684A CN102913569A CN 102913569 A CN102913569 A CN 102913569A CN 2012104316841 A CN2012104316841 A CN 2012104316841A CN 201210431684 A CN201210431684 A CN 201210431684A CN 102913569 A CN102913569 A CN 102913569A
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- braking
- brake
- radial motion
- drum
- motion stops
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Abstract
The invention discloses a plane radial movement brake, comprising a braking drum arranged on the periphery of a bottom plate, wherein a pair of mutually-symmetrical braking shoes is arranged at the inner side of the braking drum; driving devices for controlling the braking shoes to move are arranged at the heads of the braking shoes; a friction lining which is contacted with the braking drum when braking is implemented is arranged between the braking shoes and the braking drum; shaft ends of shoe sheets of the tail ends of the braking shoes are provided with bushes which have long-circular inner outline sections and can slide along a centering line; and the bushes and a bottom plate are assembled through a fixing pin. According to the plane radial movement brake, the bushes are assembled by using the fixing pin and outer rings of the bushes support the shoes to do rotary movement; the bushes drive the braking shoes to slide along the direction of the centering direction to finish the plane radial movement of the braking shoes, so that the braking shoes and the braking drum are changed into comprehensive overlapping from partial fitting; the braking moment can be increased and the braking noise is effectively reduced; and the problems of braking deviation, eccentric wearing, dragging and gnawing can be solved.
Description
Technical field:
The present invention relates to a kind of braking device, relate in particular to a kind of planar radial motion stops.
Background technique:
Break mainly contains several forms such as friction type, hydraulic type and electromagnetic type.Now widely used still is frictin braek.Frictin braek is different by friction auxiliary structure form, can be divided into three kinds of drum-type, disc type and belts, and drum brake is divided into again two kinds of air pressure and hydraulic pressure.Figure 1 illustrates a kind of neck of the prior art from the structure of shoe type pneumatic drum brake.
Neck has the fixing pin of oneself from every brake shoe iron of shoe type pneumatic drum brake, and two fixing pins be positioned at two the braking shoes same end, as shown in Figure 1.Deploying device has various ways, and wherein, the brake cam in balance projection formula and the wedge-type expanding unit and braking voussoir float, therefore can the open power of guarantee effect on two hoof equate.And the center of the brake cam of unbalanced is fixed, so can not the open power of guarantee effect on two hoof equate.
Neck is used widely from the shoe type pneumatic drum brake, and it is more that the rear wheel brake of the commercial car that particularly passenger car and gross mass are less is used.Neck is from the advantage of shoe type pneumatic drum brake, and the braking effect that travels of advancing, fall back is constant; Simple in structure, cost is low; Be convenient to attaching parking braking driving mechanism; Be easy to adjust friction facing on the brake shoe iron and the gap between the brake drum.But neck also has the unit pressure on the two braking shoes not wait (under the condition that the friction facing area is identical on the two braking shoes) from the shoe type pneumatic drum brake, thereby has two braking shoes friction facing wearing and tearing, different shortcoming of life-span.
The pneumatic drum brake of above structural type roughly can represent the development level of present pneumatic drum brake, sideslip, eccentric wear, noise when there is braking in the pneumatic drum brake of these structural types, send out gnaw, drag, the unequal shortcoming of left and right wheels braking force.This situation is not as being improved, and pneumatic drum brake is eliminated at last.
For the inhomogeneous and unsettled shortcoming of Braking efficiency of existing pneumatic drum brake two braking shoes friction facing wearing and tearing, need invention a kind of new-type, the pneumatic drum brake that usefulness is stable solves eccentric wear in the braking process, drags, sends out and gnaw and the problem such as noise.
Summary of the invention:
Technical problem to be solved by this invention is to provide a kind of and can effectively solve braking eccentric wear, brake noise, drag and send out the planar radial motion stops of gnawing.
In order to solve the problems of the technologies described above, the present invention is achieved by the following technical solutions: a kind of planar radial motion stops, comprise the brake drum that is arranged on the base plate periphery, the inboard of described brake drum is provided with a pair of symmetrical brake shoe iron, the brake shoe iron head is provided with the drive unit for the activity of control brake shoe iron, and be provided with the friction facing that can when implementing braking, contact with described brake drum between described brake shoe iron and the brake drum, it is long-round-shape and can be along the lining that heart line is slided that the shoe plate axle head of described brake shoe iron end is provided with profile in the cross section, and this lining assembles by fixing pin and base plate.
Preferably, described drive unit forms by cam with the co-operating roller of this cam.
Preferably, the described excircle of bushing center of circle and an interior oval end circular arc are concentric structure, fill up in a side, and be interior oval asymmetric.
Preferably, can rotate between described excircle of bushing and the brake shoe iron.
Preferably, in the cross section of described lining the profile center line by the geometrical center of brake drum.
Preferably, a side of described fixing pin is ground to a plane, is filled up part with a side of lining and fits.
Preferably, described brake shoe iron inboard is provided with return spring.
Preferably, the shoe plate axle head of described brake shoe iron end is provided with return spring.
Preferably, described return spring has one at least.
Compared with prior art, usefulness of the present invention is: this planar radial motion stops is assembled lining with fixing pin, it is not rotated with brake shoe, only along heart line direction is slided, make brake shoe iron and brake drum become comprehensively superimposed by the part applying, can increase braking moment, and effectively reduce brake noise, solve braking deviation, eccentric wear, drag and send out the problem of gnawing.
Description of drawings:
The present invention is further described below in conjunction with accompanying drawing.
Fig. 1 is that a kind of neck of prior art is from the structural representation of shoe type pneumatic drum brake;
Fig. 2 a is the fixing pin sectional view that is used for leading trailing shoe brake in the prior art;
Fig. 2 b is the interior section of outline figure of the lining on a kind of planar radial motion stops of the present invention;
Fig. 3 is the structural representation of a kind of planar radial motion stops of the present invention, wherein in the cross section of lining the center line of profile by the geometrical center of brake shoe iron.
Among the figure: 1, cam; 2, roller; 3, brake shoe iron; 4, brake drum; 5, friction facing; 6, base plate; 7, lining; 8, fixing pin; 9, return spring.
Embodiment:
Describe the present invention below in conjunction with the drawings and specific embodiments.
A kind of planar radial motion stops shown in Figure 3, comprise the brake drum 4 that is arranged on base plate 6 peripheries, the inboard of described brake drum 4 is provided with a pair of symmetrical brake shoe iron 3, brake shoe iron 3 heads are provided with the drive unit for control brake shoe iron 3 activities, and are provided with the friction facing 5 that can contact with described brake drum 4 between described brake shoe iron 3 and the brake drum 4 when implementing to brake.
In the present embodiment, cam 1 and the roller 2 that cooperates with this cam 1 form the drive unit that is used for 3 activities of control brake shoe iron, yet the drive unit of the brake shoe iron 3 of planar radial motion stops of the present invention is not limited to the so specific mode of execution of cam 1 and roller 2, and those skilled in the art can adopt and select any suitable other forms of drive unit according to concrete needs.
Shown in Fig. 2 b, be provided with on the shoe plate axle head of described brake shoe iron 3 ends that profile is oblong lining 7 in the cross section, the described lining 7 cylindrical centers of circle and an interior oval end circular arc are concentric structure, fill up in a side, interior oval asymmetric, this lining 7 is socketed on the fixing shoe shaft, by fixing pin 8 assemblings, one side of described fixing pin 8 is ground to a plane, is filled up part with a side of lining 7 and fits; Should have restriction to lining 7 by fixing shoe shaft, thereby so that work as drive unit (namely, cam 1 and roller 2) when brake shoe iron 3 was driven, lining 7 can center on fixing shoe shaft with brake shoe iron 3 radial motions, but can be fully away from this fixing shoe shaft.
Described lining 7 cylindricals rotate around it by brake shoe iron 3, and endoporus is subjected to the shoe shaft restriction to make lining 7 at moving linearly radially, and lining 7 is also being led brake shoe iron 3 moving linearlies certainly.
The shoe plate axle head of described brake shoe iron 3 inboards or brake shoe iron 3 ends is provided with return spring 9, and described return spring 9 has one at least, and brake shoe iron 3 can in time be resetted.
Its specific works mode is as follows, and as shown in Figure 3, the center line of profile is by the geometrical center of brake shoe iron 3 in the cross section of the lining 7 that the planar radial motion stops adopts.When implementing braking, cam 1 rotates, cam 1 pushing rolling wheels 2, and then promote two braking shoes 3 and open; In the process of opening, the head of brake shoe iron 3, namely the end near brake cam 1 can press to brake drum 4; Because the shoe plate axle head namely is provided with the lining 7 of radial arrangement near an end of shoe shaft, thus lead this moment shoe plate axle head and the outer ring around lining 7 take cam 1 as fulcrum to rotate, and the neck hoof is along with lining presses to brake drum 4 under the guiding of fixing pin; When friction facing 5 touches brake drum 4, just begin friction catch; As the same when opposite among wheel steering and the figure.Owing to friction facing 5 outers on the brake shoe iron 3 equate with the radius of brake drum 4 inwalls, the friction facing 5 of brake shoe iron 3 can be contacted fully with brake drum 4, and the even wearing of friction facing 5 has increased braking moment and has eliminated brake noise.
Here the brake shoe 3 of saying and brake drum 4 comprehensive superimposed refers to lead hoof, do not reach comprehensively superimposedly from the motion of hoof, and only when reversing, neck changes the role from hoof, reaches to advance and fall back same safe purpose.
This planar radial motion stops has increased braking moment, with fixing pin 8 assembling linings 7, it is not rotated with brake shoe iron 3, but can only be along heart line direction is slided, realize radial motion, brake shoe iron 3 and brake drum 4 are become comprehensively superimposed by the part applying, can increase braking moment, and effectively reduce brake noise, solve braking deviation, eccentric wear, drag and send out the problem of gnawing.
It is emphasized that: above only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, every foundation technical spirit of the present invention all still belongs in the scope of technical solution of the present invention any simple modification, equivalent variations and modification that above embodiment does.
Claims (9)
1. planar radial motion stops, comprise the brake drum (4) that is arranged on base plate (6) periphery, the inboard of described brake drum (4) is provided with a pair of symmetrical brake shoe iron (3), brake shoe iron (3) head is provided with for the movable drive unit of control brake shoe iron (3), and be provided with the friction facing (5) that can when implementing braking, contact with described brake drum (4) between described brake shoe iron (3) and the brake drum (4), it is characterized in that: it is long-round-shape and can be along the lining (7) that heart line is slided that the terminal shoe plate axle head of described brake shoe iron (3) is provided with profile in the cross section in, and this lining (7) assembles by fixing pin (8) and base plate (6).
2. planar radial motion stops according to claim 1, it is characterized in that: described drive unit forms by cam (1) with the co-operating roller of this cam (1) (2).
3. planar radial motion stops according to claim 1, it is characterized in that: described lining (7) the cylindrical center of circle and an interior oval end circular arc are concentric structure, fill up in a side, and be interior oval asymmetric.
4. planar radial motion stops according to claim 1 is characterized in that: can rotate between described lining (7) cylindrical and the brake shoe iron (3).
5. planar radial motion stops according to claim 1 is characterized in that: the profile center line is by the geometrical center of brake drum (4) in the cross section of described lining (7).
6. planar radial motion stops according to claim 1, it is characterized in that: a side of described fixing pin (8) is ground to a plane, is filled up part with a side of lining (7) and fits.
7. planar radial motion stops according to claim 1, it is characterized in that: described brake shoe iron (3) inboard is provided with return spring (9).
8. planar radial motion stops according to claim 1 is characterized in that: the terminal shoe plate axle head of described brake shoe iron (3) is provided with return spring (9).
9. according to claim 7 or 8 described planar radial motion stops, it is characterized in that: described return spring (9) has one at least.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104316841A CN102913569A (en) | 2012-11-02 | 2012-11-02 | Plane radial movement brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104316841A CN102913569A (en) | 2012-11-02 | 2012-11-02 | Plane radial movement brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102913569A true CN102913569A (en) | 2013-02-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104316841A Pending CN102913569A (en) | 2012-11-02 | 2012-11-02 | Plane radial movement brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102913569A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103738315A (en) * | 2014-01-28 | 2014-04-23 | 陆洪林 | Hand brake mechanism of motor vehicle |
| CN110230649A (en) * | 2019-07-02 | 2019-09-13 | 北京天权恒科技有限公司 | Double hoof overlapping planes overlap motion stops |
| CN110307272A (en) * | 2019-07-16 | 2019-10-08 | 北京天权恒科技有限公司 | Double hoof overlapping planes overlap motion stops |
| CN115342142A (en) * | 2022-10-14 | 2022-11-15 | 国智科技(河北)股份有限公司 | Plane folding device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1600535A (en) * | 1977-04-27 | 1981-10-21 | Rockwell International Corp | Brake assembly anchor pin |
| US4353442A (en) * | 1979-10-15 | 1982-10-12 | Bendix Do Brasil Equipamentos Para Autoveiculos Ltda. | Brake shoe and brake assembly for automotive vehicles |
| EP0674113B1 (en) * | 1994-03-05 | 1998-05-13 | BPW Bergische Achsen Kommanditgesellschaft | Drum brake for vehicles |
| CN101550974A (en) * | 2008-04-03 | 2009-10-07 | 王庭义 | Air pressure flexible drum brake |
| CN102374244A (en) * | 2010-08-24 | 2012-03-14 | 北京停易制动器有限公司 | Drum brake |
| CN202901114U (en) * | 2012-11-02 | 2013-04-24 | 北京中优天顺科技有限公司 | Plane radial motion brake |
-
2012
- 2012-11-02 CN CN2012104316841A patent/CN102913569A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1600535A (en) * | 1977-04-27 | 1981-10-21 | Rockwell International Corp | Brake assembly anchor pin |
| US4353442A (en) * | 1979-10-15 | 1982-10-12 | Bendix Do Brasil Equipamentos Para Autoveiculos Ltda. | Brake shoe and brake assembly for automotive vehicles |
| EP0674113B1 (en) * | 1994-03-05 | 1998-05-13 | BPW Bergische Achsen Kommanditgesellschaft | Drum brake for vehicles |
| CN101550974A (en) * | 2008-04-03 | 2009-10-07 | 王庭义 | Air pressure flexible drum brake |
| CN102374244A (en) * | 2010-08-24 | 2012-03-14 | 北京停易制动器有限公司 | Drum brake |
| CN202901114U (en) * | 2012-11-02 | 2013-04-24 | 北京中优天顺科技有限公司 | Plane radial motion brake |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103738315A (en) * | 2014-01-28 | 2014-04-23 | 陆洪林 | Hand brake mechanism of motor vehicle |
| CN103738315B (en) * | 2014-01-28 | 2016-01-06 | 陆洪林 | Hand brake mechanism of motor vehicle |
| CN110230649A (en) * | 2019-07-02 | 2019-09-13 | 北京天权恒科技有限公司 | Double hoof overlapping planes overlap motion stops |
| CN110307272A (en) * | 2019-07-16 | 2019-10-08 | 北京天权恒科技有限公司 | Double hoof overlapping planes overlap motion stops |
| CN115342142A (en) * | 2022-10-14 | 2022-11-15 | 国智科技(河北)股份有限公司 | Plane folding device |
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Owner name: BEIJING WANGTINGYI EXPERIMENTAL TECHNOLOGY CO., LT Free format text: FORMER OWNER: BEIJING ZHONGYOU TIANSHUN TECHNOLOGY CO., LTD. Effective date: 20140903 |
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Effective date of registration: 20140903 Address after: 101200 Beijing city Pinggu District Pinggu town Ju River Road No. 45 Applicant after: Beijing Wangtingyi Laboratory Technology Co., Ltd. Address before: 101200 Beijing District of Pinggu City, East High Town dawangwu Road No. 21 Applicant before: Beijing Zhongyou Tianshun Technology Co.,Ltd. |
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Owner name: WEI ZHENYONG WANG ZHONGBO Effective date: 20150227 Owner name: WANG TINGYI Free format text: FORMER OWNER: BEIJING WANGTINGYI EXPERIMENTAL TECHNOLOGY CO., LTD. Effective date: 20150227 |
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Effective date of registration: 20150227 Address after: 101200 Beijing city Pinggu District deckout Ting 1 Building 9 unit 1803 Applicant after: Wang Tingyi Applicant after: Wei Zhenyong Applicant after: Wang Zhongbo Address before: 101200 Beijing city Pinggu District Pinggu town Ju River Road No. 45 Applicant before: Beijing Wangtingyi Laboratory Technology Co., Ltd. |
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| ASS | Succession or assignment of patent right |
Owner name: WEIHAI WANG TINGYI LABORATORY TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: WANG TINGYI Effective date: 20150814 Free format text: FORMER OWNER: WEI ZHENYONG WANG ZHONGBO Effective date: 20150814 |
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Effective date of registration: 20150814 Address after: 264402 South Road, Nanhai District, Weihai City, Shandong Province, Longhai science and Technology Road South Applicant after: The king of Weihai Tingyi Laboratory Technology Co Ltd Address before: 101200 Beijing city Pinggu District deckout Ting 1 Building 9 unit 1803 Applicant before: Wang Tingyi Applicant before: Wei Zhenyong Applicant before: Wang Zhongbo |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130206 |
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| WD01 | Invention patent application deemed withdrawn after publication |