CN106382309B - A kind of drum brake lining - Google Patents
A kind of drum brake lining Download PDFInfo
- Publication number
- CN106382309B CN106382309B CN201611082349.XA CN201611082349A CN106382309B CN 106382309 B CN106382309 B CN 106382309B CN 201611082349 A CN201611082349 A CN 201611082349A CN 106382309 B CN106382309 B CN 106382309B
- Authority
- CN
- China
- Prior art keywords
- steel back
- arc steel
- brake lining
- arcuate friction
- drum brake
- 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.)
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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
- F16D65/00—Parts or details
- F16D65/02—Braking members; Mounting thereof
- F16D65/04—Bands, shoes or pads; Pivots or supporting members therefor
- F16D65/08—Bands, shoes or pads; Pivots or supporting members therefor for internally-engaging brakes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/02—Braking members; Mounting thereof
- F16D65/04—Bands, shoes or pads; Pivots or supporting members therefor
- F16D65/08—Bands, shoes or pads; Pivots or supporting members therefor for internally-engaging brakes
- F16D65/09—Pivots or supporting members therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/02—Braking members; Mounting thereof
- F16D65/04—Bands, shoes or pads; Pivots or supporting members therefor
- F16D65/08—Bands, shoes or pads; Pivots or supporting members therefor for internally-engaging brakes
- F16D65/09—Pivots or supporting members therefor
- F16D65/091—Pivots or supporting members therefor for axially holding the segments
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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
- F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
- F16D69/04—Attachment of linings
Abstract
The present invention relates to automobile brake technical fields, more particularly to a kind of drum brake lining, it include: several arc steel backs, there are two arcuate friction block, two ends for being distributed in the arc steel back of two the first preset distances of arcuate friction block gap for each arc-shaped steel back setting；Several arc steel back the second preset distances of interval are distributed parallelly on the fitting surface of brake rim.The present invention provides a kind of simple production process, and production cost is low, and good heat dissipation effect, rate of wear is low, the few drum brake lining of friction phenomenon.
Description
Technical field
The present invention relates to automobile brake technical fields, and in particular to a kind of drum brake lining.
Background technique
Currently, most of commercial vehicle still uses drum after shroud in addition to a small number of commercial vehicles use disk-type braking gland completely
Formula structure or drum brakes structure.And existing most drum brake linings use synthetic material, due to commercialization
Vehicle-mounted great, brake lining temperature quickly increases in brake process, and drum-type structure not easy heat radiation, and synthetic material is at high temperature
Coefficient of friction decaying, and abrasion greatly increases.On the other hand, synthetic material brake lining uses the production technology of press curing,
Entire liner is an entirety, and area is larger, and production technology is complicated, and production cost is higher, and the abrasive dust that when brake generates is not easy to arrange
It puts, causes to accumulate, further affect the heat dissipation of liner.It is brake lining and system that existing brake lining, which there is also an issue,
Not exclusively, friction phenomenon is serious for dynamic drum fitting.
Chinese patent literature CN202431793U discloses a kind of open slotting drum lining of vehicle brake, including is in circular arc
The liner ontology of shape, is suppressed with several heat dissipation grooves on the medial surface of the liner ontology, and the heat dissipation groove is by liner
The medial surface of ontology is divided into several elevated regions, and the riveted holes through liner ontology are equipped on the elevated regions.It should
Lining structure is simple, high mechanical strength, but the liner is integral structure, and difficulty of processing is big, and production cost is higher, when brake
The abrasive dust of generation is easily deposited in heat dissipation groove, influences the heat dissipation of liner ontology.Therefore the production of brake facing how is reduced
Cost makes it easy to process, while improving heat dissipation effect as one technical problem urgently to be resolved of the industry.
Summary of the invention
Therefore, the technical problem to be solved in the present invention is that brake facing in the prior art is overcome to be integral knot
Structure, high production cost, heat dissipation effect is poor, wears away serious defect, to provide a kind of simple production process, production cost is low,
Good heat dissipation effect, rate of wear is low, the few drum brake lining of friction phenomenon.
For this purpose, the present invention provides a kind of drum brake linings, comprising:
Several arc steel backs, there are two arcuate friction block, two arcuate friction block gaps for each arc-shaped steel back setting
Two ends for being distributed in the arc steel back of first preset distance；Several the second preset distances of arc steel back interval
It is distributed parallelly on the fitting surface of brake rim.
In the drum brake lining, one end of the arcuate friction block is beveled end；It is arranged in the same arc
The positive and negative setting of two arcuate friction blocks in steel back is so that two beveled ends adaptations.
In the drum brake lining, the arc steel back and the arcuate friction block are by being sintered to fix.
In the drum brake lining, the arc-shaped steel back is provided with multiple sintering holes, and the arcuate friction block is logical
It crosses and it is set is inserted into the sintering hole with the protrusion on arc-shaped steel back contacts face to be fixed with the arc steel back.
In the drum brake lining, the arcuate friction block has the first connection of a perforation arcuate friction block
Hole, two ends of the arc steel back are respectively provided with the second connecting hole of two ends of the perforation arc steel back, even
Fitting sequentially passes through first connecting hole and the second connecting hole for the arcuate friction block and arc steel back and the brake rim
Connection.
In the drum brake lining, the connector is rivet.
In the drum brake lining, the arc steel back and/or the arcuate friction block are powdered metallurgical material system
At.
In the drum brake lining, between the arc steel back and the fitting surface of the brake rim there are two settings
The floating part of the distance between fitting surface of the arc steel back and the brake rim can be changed.
In the drum brake lining, the floating part is arranged in below the second connecting hole of the arc steel back, institute
The center for stating floating part is provided with a centre bore, and the centre bore and second connecting hole are coaxially disposed.
In the drum brake lining, the center of the floating part is arranged higher than surrounding.
In the drum brake lining, the floating part is disc spring.
Technical solution of the present invention has the advantages that
1. drum brake lining provided by the invention, several arc steel backs are distributed on the fitting surface of brake rim,
And there are two the arcuate friction blocks of separation arrangement for each arc-shaped steel back setting, it is only necessary to which a set of compacting tool set can give birth to simultaneously
Production multiple arcs friction block, simple production process, high production efficiency, manufacturing cost are lower.And the heat generated when braking can
It is distributed in time by the gap between arc steel back and between arcuate friction block, improves heat dissipation effect；It brakes simultaneously
When the abrasive dust that generates due to the setting of arc steel back and arcuate friction block radian, will not be deposited in above brake rim, but from arc
Gap discharge between shape steel back, further improves heat dissipation effect, plays a very good protection to brake rim.
2. drum brake lining provided by the invention, the arc steel back and the arcuate friction block are powder metallurgy material
Material is made, and powdered metallurgical material is to temperature-insensitive, through overtesting, powdered metallurgical material at 500 DEG C coefficient of friction still compared with
Stablize, undamped phenomenon, and under the same conditions, the rate of wear of powdered metallurgical material reduces 1.5- than synthetic material brake lining
2 times, therefore the present invention has well solved automobile brake using arc steel back made of powdered metallurgical material and arcuate friction block
Liner at high temperature decay and wear away the problem of increasing by coefficient of friction.
3. drum brake lining provided by the invention is arranged between the arc steel back and the fitting surface of the brake rim
There are two floating part, which has elastic telescopic performance, enables automobile brake lining plate and brake rim when braking complete
Fitting, increases the friction area between arc steel back and brake rim, so that abrasion is consistent, greatly reduces the hair of friction phenomenon
It is raw；And in automobile normal running, due to the setting of floating part, between arc steel back and brake rim, there are certain gaps, and
Incomplete contact between reduces wear phenomenon when automobile normal running.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is the schematic diagram of the drum brake lining provided in the first embodiment of the invention；
Fig. 2 is the front view of drum brake lining shown in FIG. 1；
Fig. 3 is the rearview of drum brake lining shown in FIG. 1；
Fig. 4 is the front view of the arcuate friction block provided in second of embodiment of the invention；
Fig. 5 is the rearview of arcuate friction block described in Fig. 4；
Fig. 6 is the schematic diagram of the arc steel back provided in second of embodiment of the invention；
Fig. 7 is the schematic diagram of the disc spring provided in the third embodiment of the invention.
Description of symbols:
1- arc steel back；2- arcuate friction block；3- floating part；11- is sintered hole；The second connecting hole of 12-；21- protrusion；22-
First connecting hole；23- beveled end；31- centre bore.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
As long as in addition, the non-structure each other of technical characteristic involved in invention described below different embodiments
It can be combined with each other at conflict.
A kind of specific embodiment of drum brake lining as shown in Figs. 1-3, including several arc steel backs 1, it is each
For the setting of arc-shaped steel back there are two arcuate friction block 2, what two arcuate friction blocks 2 were spaced the first preset distance is distributed in the arc
Two ends of shape steel back 1；Several arc steel backs 1 are spaced the fitting surface for being distributed parallelly on brake rim of the second preset distance
On.
Original integral stop liner is divided into 12 pieces of identical arcuate friction blocks 2, in production, it is only necessary to a set of
Compacting tool set, energy 12 pieces of arcuate friction blocks 2 of compression moulding, since the structure of arcuate friction block 2 is simple, production technology
Simply, lower production costs.In brake, the abrasive dust for generation of braking is scattered in gap and arc between arcuate friction block 2
In gap between steel back 1, due to the setting of arc, under the action of abrasive dust self gravity, abrasive dust smoothly from arc steel back 1 it
Between gap in be discharged so that brake rim is directly exposed to outer, improve heat dissipation effect, and then protect brake rim.
Specifically, the first preset distance and the second preset distance can be set according to actual needs, can it is identical can also be with
It is different.Arcuate friction block 2 can be rectangle or trapezoidal etc., as long as the equivalent width of width and arc steel back 1.Arc rubs
Cleaning block 2, the radian of arc steel back 1 are consistent with the fitting surface of brake rim, so that solid and reliable.
As a kind of specific embodiment, one end of the arcuate friction block 2 is beveled end 23；It is arranged in the same arc
The positive and negative setting of two arcuate friction blocks 2 in shape steel back 1 is so that two beveled ends 23 are adapted to.That is two arcuate friction blocks 2
Two beveled ends 23 be oppositely arranged, in this way brake when, if two arcuate friction blocks contact with each other under the effect of external force,
Contact area is increased, the frictional force being accordingly subject to is also larger, and braking effect is good.
Fig. 4-6 is a kind of improvement embodiment of drum brake lining, the arc steel back 1 and the arcuate friction block 2
By being sintered to fix, arc steel back 1 and arcuate friction block 2 are sintered by pressure sintering by the arcuate friction block 2 of compression moulding again
Together.Multiple sintering holes 11 are provided in the arc steel back 1, multiple sintering holes 11 are distributed generally evenly in arc steel back
On 1, the arcuate friction block 2, which passes through, is arranged in itself and the insertion of the protrusion 21 sintering hole on 1 contact surface of arc steel back
With fixed with the arc steel back 1 in 11.Arcuate friction block 2 and two vertex of 1 contact surface of arc steel back are respectively arranged in Fig. 5
There is a protrusion 21, be just sintered in hole 11 accordingly in insertion arc steel back 1, so that the two is fixed, both when preventing from being sintered
Position change, the both ends that protrusion 21 is distributed in each arcuate friction block 2, so that arcuate friction block 2 and arc steel back 1
Sintering connection it is stronger.In addition, the arcuate friction block 2 has the first connecting hole of a perforation arcuate friction block 2
22, the first connecting hole 22 is provided with the middle part of arcuate friction block 2, and two ends of the arc steel back 1 are respectively provided with a perforation
Second connecting hole 12 of two ends of the arc steel back 1, the first connecting hole 22 and the second connecting hole 12 pass through pressing one-time
Molding.Connector sequentially passes through first connecting hole 22 and the second connecting hole 12 is supported on the contact surface of brake rim, will
The arcuate friction block 2 and arc steel back 1 are connect with the brake rim, and the connector is rivet, to realize riveting.
Embodiment is improved as another kind, the arc steel back 1 and the arcuate friction block 2 are powdered metallurgical material
It is made.Or only arc steel back 1 is made of powdered metallurgical material.Or only arcuate friction block 2 is powdered metallurgical material system
At.Powdered metallurgical material is selected, arc steel back 1 and arcuate friction block 2 are distinguished by compression moulding by corresponding mold, then lead to
Sintering is overpressurized to be sintered together the two.The arc steel back 1 and arcuate friction block 2 of powder metallurgy material rub system at high temperature
Still more stable, the undamped phenomenon of number；Under the same conditions, the mill of the arc steel back 1 of powder metallurgy material and arcuate friction block 2
Consumption rate reduces 1.5-2 times than original-pack brake lining, and the automobile brake lining plate of powder metallurgy material is significantly better than on material property
The brake lining of Composite, has a extensive future.
Fig. 7 is the another embodiment of drum brake lining, further includes in the arc steel back 1 and the brake rim
The floating of the distance between fitting surface of the arc steel back 1 and the brake rim can be changed there are two being arranged between fitting surface
Part 3, to realize floating effect.The floating part 3 is arranged in below the second connecting hole 12 of the arc steel back 1, the floating
The center of part 3 is provided with a centre bore 31, and the centre bore 31 is coaxially disposed with second connecting hole 12, and connector is successively worn
The first connecting hole 22, the second connecting hole 12 and centre bore 31 is crossed to support on the contact surface of brake rim, by arcuate friction block 2,
Arc steel back 1, floating part 3 and brake rim are connected and fixed.The floating part 3 is disc spring, and the center of the floating part 3 is higher than surrounding
Setting, and the curvature of floating part 3 is greater than the curvature of arcuate friction block 2 and arc steel back 1, floating part 3 may be other
Intermediate elastic parts high, surrounding is low, in this way in automobile normal running, arc steel back 1 only with the central contact of disc spring, is braked
Only the peripheral contact with disc spring, other positions do not contact drum, form floating structure, reduce connecing between arc steel back 1 and disc spring
Contacting surface product, reduces loss；In brake, due to the elastic shrinkage of disc spring itself, disc spring is accommodated completely in arc steel back 1 and is stopped
Between vehicle drum, the complete fitting of arc steel back 1 and brake rim is realized, friction area is increased, so that wear surface is smooth, significantly
Reduce the generation of friction phenomenon.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
It changes still within the protection scope of the invention.
Claims (9)
1. a kind of drum brake lining characterized by comprising
Several arc steel backs (1), there are two arcuate friction block (2), two arcuate friction blocks for setting on each arc steel back (1)
(2) two ends for being distributed in the arc steel back (1) of the first preset distance are spaced；Several arc steel backs (1) interval
Second preset distance is distributed parallelly on the fitting surface of brake rim；One end of the arcuate friction block (2) is beveled end (23)；
Two arcuate friction blocks (2) being arranged on the same arc steel back (1) are positive and negative to be arranged so that two beveled ends (23)
Adaptation.
2. drum brake lining according to claim 1, which is characterized in that the arc steel back (1) and the arc rub
Cleaning block (2) is by being sintered to fix.
3. drum brake lining according to claim 1 to 2, which is characterized in that be arranged on the arc steel back (1)
There are multiple sintering holes (11), the arcuate friction block (2) is by being arranged in itself and the protrusion on arc steel back (1) contact surface
(21) it is inserted into the sintering hole (11) with fixed with the arc steel back (1).
4. drum brake lining according to claim 1 or 2, which is characterized in that the arcuate friction block (2) has consistent
Lead to the first connecting hole (22) of the arcuate friction block (2), two ends of the arc steel back (1) are respectively provided with a perforation institute
The second connecting hole (12) of two ends of arc steel back (1) is stated, connector sequentially passes through first connecting hole (22) and
The arcuate friction block (2) and arc steel back (1) connect by two connecting holes (12) with the brake rim.
5. drum brake lining according to claim 1 or 2, which is characterized in that the arc steel back (1) and/or described
Arcuate friction block (2) is made of powdered metallurgical material.
6. drum brake lining according to claim 4, which is characterized in that in the arc steel back (1) and the brake
There are two can change the distance between the arc steel back (1) and fitting surface of the brake rim for setting between bulging fitting surface
Floating part (3).
7. drum brake lining according to claim 6, which is characterized in that the floating part (3) is arranged in the arc
Below the second connecting hole (12) of steel back (1), the center of the floating part (3) is provided with a centre bore (31), the centre bore
(31) it is coaxially disposed with second connecting hole (12).
8. drum brake lining according to claim 6, which is characterized in that the center of the floating part (3) is higher than surrounding
Setting.
9. drum brake lining according to claim 7, which is characterized in that the floating part (3) is disc spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611082349.XA CN106382309B (en) | 2016-11-30 | 2016-11-30 | A kind of drum brake lining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611082349.XA CN106382309B (en) | 2016-11-30 | 2016-11-30 | A kind of drum brake lining |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106382309A CN106382309A (en) | 2017-02-08 |
| CN106382309B true CN106382309B (en) | 2019-02-19 |
Family
ID=57960026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611082349.XA Active CN106382309B (en) | 2016-11-30 | 2016-11-30 | A kind of drum brake lining |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106382309B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5941349A (en) * | 1994-08-26 | 1999-08-24 | Krumm, Sr.; Walter E. | Arcuate brake system with fastener-free, replaceable brake lining |
| CN1804422A (en) * | 2005-01-10 | 2006-07-19 | 考夫伦有限公司 | Improved disc brake pad with friction elements, particularlyto be employed in the railway field |
| CN201661634U (en) * | 2010-01-14 | 2010-12-01 | 贵州新安航空机械有限责任公司 | Novel braking sheet in elastic structure |
| CN202073962U (en) * | 2011-06-10 | 2011-12-14 | 重庆交通大学 | Split friction-disc type brake |
| CN103038534A (en) * | 2010-06-29 | 2013-04-10 | 泰明顿服务责任有限公司 | Brake shoe for a drum brake |
| CN203670569U (en) * | 2013-12-17 | 2014-06-25 | 湖南中联重科车桥有限公司 | Braking device |
| CN203756799U (en) * | 2013-03-13 | 2014-08-06 | 伊顿公司 | Improved drum and contractile drum type brake assembly |
| CN105299109A (en) * | 2015-10-28 | 2016-02-03 | 嘉善烽火节能设备有限公司 | Push-rod brake with automatic rapid heat dissipation function |
| CN206221543U (en) * | 2016-11-30 | 2017-06-06 | 北京天宜上佳新材料股份有限公司 | A kind of drum brake lining |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201875027U (en) * | 2010-10-26 | 2011-06-22 | 湖南中联重科车桥有限公司 | Brake shoe and drum brake |
| DE102011003721B4 (en) * | 2011-02-07 | 2012-10-18 | Saf-Holland Gmbh | Brake shoe for drum brake |
| CN204592098U (en) * | 2015-05-12 | 2015-08-26 | 龙文凯 | A kind of new automobile composite brake sheet |
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Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5941349A (en) * | 1994-08-26 | 1999-08-24 | Krumm, Sr.; Walter E. | Arcuate brake system with fastener-free, replaceable brake lining |
| CN1804422A (en) * | 2005-01-10 | 2006-07-19 | 考夫伦有限公司 | Improved disc brake pad with friction elements, particularlyto be employed in the railway field |
| CN201661634U (en) * | 2010-01-14 | 2010-12-01 | 贵州新安航空机械有限责任公司 | Novel braking sheet in elastic structure |
| CN103038534A (en) * | 2010-06-29 | 2013-04-10 | 泰明顿服务责任有限公司 | Brake shoe for a drum brake |
| CN202073962U (en) * | 2011-06-10 | 2011-12-14 | 重庆交通大学 | Split friction-disc type brake |
| CN203756799U (en) * | 2013-03-13 | 2014-08-06 | 伊顿公司 | Improved drum and contractile drum type brake assembly |
| CN203670569U (en) * | 2013-12-17 | 2014-06-25 | 湖南中联重科车桥有限公司 | Braking device |
| CN105299109A (en) * | 2015-10-28 | 2016-02-03 | 嘉善烽火节能设备有限公司 | Push-rod brake with automatic rapid heat dissipation function |
| CN206221543U (en) * | 2016-11-30 | 2017-06-06 | 北京天宜上佳新材料股份有限公司 | A kind of drum brake lining |
Also Published As
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|---|---|
| CN106382309A (en) | 2017-02-08 |
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Address after: 100094 Haidian District, Beijing, Shanghai town, xinxinli village, South Railway 500 meters north. Applicant after: Beijing Tianyi good high-tech materials Limited by Share Ltd Address before: 100094 Haidian District, Beijing, Shanghai town, xinxinli village, South Railway 500 meters north. Applicant before: Beijing Tianyi good new materials Limited by Share Ltd |
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