CN104728316A - Drum brake - Google Patents
Drum brake Download PDFInfo
- Publication number
- CN104728316A CN104728316A CN201510165932.6A CN201510165932A CN104728316A CN 104728316 A CN104728316 A CN 104728316A CN 201510165932 A CN201510165932 A CN 201510165932A CN 104728316 A CN104728316 A CN 104728316A
- Authority
- CN
- China
- Prior art keywords
- brake
- friction plate
- drum
- friction
- plate
- 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
Links
Landscapes
- Braking Arrangements (AREA)
Abstract
The invention discloses a drum brake and belongs to the technical field of brakes. The drum brake comprises a brake drum, a friction plate and a brake shoe, wherein the friction plate is fixedly installed on the inner side of the brake drum, and a friction face is formed on the inner surface of the friction plate. The heat deformation of the brake drum is avoided, the service life of the friction plate and the maintenance period of the brake drum are prolonged, the using performance of the drum brake is improved, and the drum brake is widely produced and used.
Description
Technical field
The present invention relates to Brake for vehicle technical field, particularly relate to a kind of drum brake.
Background technique
Current Brake for vehicle mainly contains two types, and one is drum brake, and another kind is disk type braker.The main flow of drum brake is internal tensional type, and its brake shoe is positioned at inside brake drum, and when brake, brake shoe outwards opens, and the inner side of friction brake drum, reaches the object of brake.Relative to disk type braker, the Braking efficiency of drum brake and thermal diffusivity all will differ from many, the braking force poor stability of drum brake, and on different road surface, braking force alters a great deal, and are not easy to control.And due to heat dispersion poor, can assemble a large amount of heats in braking process, comparatively easily there is very complicated distortion in brake shoe and brake drum under temperatures involved, easily produces fading of brake and the phenomenon that flutters, and causes retardation efficiency to decline.For heavy goods vehicles, although the speed of a motor vehicle is not generally very high, because carrying capacity is larger, disk type braker is not suitable for the occasion of this high loading, and the robustness of brake shoe is also high than disk type braker, therefore many heavy goods vehicles still use the design of four hub types so far.
But the friction plate of traditional drum brake is all mounted on brake shoe, during braking, brake shoe opens, friction plate is relied on the inner side of brake drum, form friction catch, because friction plate material is softer, hardness is lower, meeting preferential wear friction plate in braking process, this just causes the working life of friction plate very short, and also can wear and tear while friction plate self wearing and tearing brake drum, causes the damage of brake drum, shorten the maintenance period of vehicle, add cost of upkeep; Further, friction plate direct friction brake drum, fricative heat causes brake drum thermal distortion, affects the normal use of brake drum.
Therefore, for a kind of new drum brake of exploitation, change traditional structural type, not only have urgent researching value, also have good economic benefit and commercial Application potentiality, this is the power place that is accomplished of the present invention and basis just.
Summary of the invention
In order to overcome the defect of above-mentioned pointed existing drum brake, the present inventor, to this has been further investigation, after having paid a large amount of creative work, thus completes the present invention.
Specifically, technical problem to be solved by this invention is: provide a kind of drum brake, extends the working life of friction plate and the maintenance period of brake drum, improves the usability of drum brake.
For solving the problems of the technologies described above, technological scheme of the present invention is: provide a kind of drum brake, described drum brake comprises brake drum, friction plate and brake shoe, and described friction plate is fixedly installed in the inner side of described brake drum, and the internal surface of described friction plate forms rubbing surface.
In described drum brake of the present invention, as the preferred technological scheme of one, described friction plate is divided into some pieces of friction plate monomers.
In described drum brake of the present invention, as the preferred technological scheme of one, described in adjacent two, between friction plate monomer, be provided with gap.
In described drum brake of the present invention, as the preferred technological scheme of one, described gap is obliquely installed.
In described drum brake of the present invention, as the preferred technological scheme of one, the internal surface of described friction plate is provided with some grooves.
In described drum brake of the present invention, as the preferred technological scheme of one, described groove slant is arranged.
In described drum brake of the present invention, as the preferred technological scheme of one, described brake shoe is provided with some through holes.
In described drum brake of the present invention, as the preferred technological scheme of one, the outer surface of described brake shoe is installed with braking plate.
In described drum brake of the present invention, as the preferred technological scheme of one, the internal surface of described braking plate offers the curve bath of circumference extension.
In described drum brake of the present invention, as the preferred technological scheme of one, the internal surface of described braking plate is provided with thermal-protective coating.
After have employed technique scheme, the invention has the beneficial effects as follows:
(1) friction plate is fixedly mounted on the inner side of brake drum, because friction plate material inherently has certain heat insulating function, so when friction catch, heat passes to brake drum by friction plate hardly, therefore, brake drum produces thermal distortion hardly, thus avoids the various harm that brake drum causes because of thermal distortion.
(2) friction plate softer for material is fixed on brake shoe by traditional drum brake, when removing friction catch brake drum, because the brake shoe installing space of annular is limited, cause friction plate all can not surround brake shoe, friction plate is made to there is absent region, therefore the occlusal contact area between friction plate and brake drum is less, and cause friction disc wear serious, friction brake force is limited; And friction plate softer for material is fixed on brake drum by the present invention, use harder material friction catch friction plate, because the area of friction plate increases, when causing braking, the wearing and tearing of friction plate reduce, be used for simultaneously brake part material comparatively friction plate is hard, wear and tear also less, therefore significantly extend the working life of friction plate, too increase friction brake force.
(3) because friction plate is divided into some pieces of friction plate monomers, be convenient to change, when in friction plate monomer one piece or several pieces seriously impaired, can change one by one, that does not damage then need not change, or keeps for subsequent use, reduces maintenance cost.
(4) between two adjacent friction plate monomers, gap is provided with, both can ventilation and heat, the impurity produced in friction catch process can be held again.
(5) groove is provided with at the internal surface of friction plate, when hub rotation, brake drum can produce air-flow, take away the heat that friction catch produces, reduce the heat distortion amount of brake drum and brake shoe, also can make simultaneously the impurity that produces in friction catch process in short distance just cleaned go out rubbing surface, achieve entity large size friction catch in time.
(6) because groove and gap are all obliquely installed, be convenient to discharge the impurity be contained in groove or gap, be also conducive to the water be attached on rubbing surface simultaneously and discharge, avoid the formation of moisture film, cause braking failure; On the other hand, groove and gap are all obliquely installed, and when avoiding braking, the active force of brake shoe damages the edge in groove or gap, or friction plate is pushed away initial position and causes stopping distance to change, and extends the working life of friction plate further.
(7) brake shoe is provided with some through holes, adds vent area, can take away the heat that friction catch produces, reduce the heat distortion amount of brake shoe.
(8) due to brake shoe being provided with braking plate, protective action is served to brake shoe, when changing in time after braking plate wearing and tearing, reduce maintenance cost.
(9) because braking plate offers the curve bath of circumference extension on the surface of brake shoe, this curve bath in the direction of extension two ends is penetrating, form ventilation slot, add air-flow path, the heat that friction catch produces can be taken away in time, avoid the heat of braking plate too much pass to brake shoe, further reduce the heat distortion amount of brake shoe.
(10) because braking plate is provided with thermal-protective coating near the surface of brake shoe, further avoid the heat of braking plate too much pass to brake shoe, reduce the heat distortion amount of brake shoe.
Accompanying drawing explanation
Fig. 1 is the detonation configuration schematic diagram of the embodiment of the present invention;
Fig. 2 is the structural representation of another embodiment of the present invention;
Wherein, in fig. 1 and 2, each number designation refers to following concrete meaning, element and/or parts respectively.
In figure: 1, brake drum, 2, brake shoe, 201, through hole, 3, friction plate, 301, friction plate monomer, 302, gap, 303, groove, 304, screw, 4, braking plate, 401, curve bath, 402, thermal-protective coating.
Embodiment
Below in conjunction with drawings and Examples, the present invention is further described.But the purposes of these exemplary mode of executions and object are only used for exemplifying the present invention, not any type of any restriction is formed to real protection scope of the present invention, more non-protection scope of the present invention is confined to this.
At this, by annular solid or quadrant, the surface definition near side, the center of circle is internal surface, and the surface definition away from side, the center of circle is outer surface, general below.
Embodiment one:
As shown in Figure 1, a kind of drum brake provided by the present invention, comprise brake drum 1, friction plate 3 and brake shoe 2, friction plate 3 is fixedly installed in the inner side of brake drum 1, and the internal surface of friction plate 3 forms rubbing surface, and friction plate 3 has a variety of with the means of fixation of brake drum 1, screw 304 can be used to connect, also can use rivet interlacement, also can adopt other forms of fixing, not limit at this.
Central scope of the present invention is exactly inner side friction plate 3 being fixed on brake drum 1, change the conventional construction be fixed on by friction plate 3 on brake shoe 2, when friction catch, intercept heat and passed to brake drum 1 by friction plate 3, avoid the various harm that brake drum 1 causes because of thermal distortion.Further, increase the utilization area of friction plate 3, reduce the wearing and tearing of friction plate 3, extend the working life of friction plate 3, thus extend the maintenance period of drum brake.
On the other hand, friction plate 3 is fixed on the inner side of brake drum 1, avoid the wearing and tearing of brake drum 1, brake drum 1 is demand fulfillment rigidity and a requirement of strength when designing, can not wear factor be considered, therefore, suitably can reduce the wall thickness of brake drum 1, alleviate the weight of brake drum 1, reduce the manufacture cost of brake drum 1.
Embodiment two:
As shown in Figure 1, a kind of drum brake provided by the present invention, its structure is substantially identical with embodiment one, and comprise brake drum 1, friction plate 3 and brake shoe 2, friction plate 3 is fixedly installed in the inner side of brake drum 1, and the internal surface of friction plate 3 forms rubbing surface.Inventor has done again further research, friction plate 3 is divided into some pieces of friction plate monomers 301, gap 302 is provided with between two adjacent friction plate monomers 301, gap 302 is obliquely installed, be obliquely installed the bearing of trend referring to gap 302 bearing of trend and friction plate 3 bus to have angle, size as the angle number of degrees does not limit at this, because the quality of friction plate 3 material own is softer, can not cutting force be produced to brake shoe 2 and other brake members and damage brake member during braking, by the split-type design of this friction plate 3, be convenient to installation and maintenance, reduce user cost, and this gap 302 be obliquely installed, both can ventilation and heat, the impurity produced in friction catch process can be held again.
Embodiment three:
As shown in Figure 1, a kind of drum brake provided by the present invention, its structure is substantially identical with embodiment one, and comprise brake drum 1, friction plate 3 and brake shoe 2, friction plate 3 is fixedly installed in the inner side of brake drum 1, and the internal surface of friction plate 3 forms rubbing surface.Inventor has done again further research, the internal surface of friction plate 3 is provided with some grooves 303, groove 303 can the shutoff of open at one end one end, every bar groove 303 also all can be communicated with two end faces of friction plate 3, groove 303 is obliquely installed, be obliquely installed the bearing of trend referring to groove 303 bearing of trend and friction plate 3 bus to have angle, size as the angle number of degrees does not limit at this, same reason, friction plate 3 is provided with groove 303, because the quality of friction plate 3 material own is softer, can not cutting force be produced to brake shoe 2 and other brake members and damage brake member during braking, and this groove 303 be obliquely installed, both can ventilation and heat, short distance can hold the impurity produced in friction catch process again, realize the large-area material contact braking of brake body.
Embodiment four:
As Fig. 1 and Fig. 2 jointly shown in, a kind of drum brake provided by the present invention, its structure is substantially identical with embodiment one, comprise brake drum 1, friction plate 3 and brake shoe 2, friction plate 3 is fixedly installed in the inner side of brake drum 1, the internal surface of friction plate 3 forms rubbing surface, and it acts in embodiment one and have also been made detailed description, does not repeat them here.Inventor is again according to this design, further research, brake shoe 2 be have also been made further improvement, brake shoe 2 is provided with some through holes 201, and the outer surface of brake shoe 2 is installed with braking plate 4, and through hole 201 1 aspect on brake shoe 2 plays thermolysis, on the other hand, these through holes 201 can be utilized when braking plate 4 is installed, use bolt or rivet, braking plate 4 is fixed on brake shoe 2.
Embodiment five:
As Fig. 1 and Fig. 2 jointly shown in, a kind of drum brake provided by the present invention, its structure is substantially identical with embodiment four, comprise brake drum 1, friction plate 3 and brake shoe 2, friction plate 3 is fixedly installed in the inner side of brake drum 1, the internal surface of friction plate 3 forms rubbing surface, brake shoe 2 is provided with some through holes 201, the outer surface of brake shoe 2 is installed with braking plate 4, braking plate 4 one aspect prevents brake shoe 2 to be worn, the opposing party serves heat insulation effect, further, the internal surface of braking plate 4 offers the curve bath 401 of circumference extension, two ends are penetrating in the direction of extension for these curve baths 401, form ventilation slot, add air-flow path, the heat that friction catch produces can be taken away in time.
In order to increase effect of heat insulation, the internal surface of braking plate 4 is provided with thermal-protective coating 402, and thermal-protective coating 402 and braking plate 4 are combined as a whole, and thermal-protective coating 402 can use Furtulon or other materials, does not limit at this.
Embodiment six:
As Fig. 1 and Fig. 2 jointly shown in, a kind of drum brake provided by the present invention, its structure is substantially identical with embodiment one, comprise brake drum 1, friction plate 3 and brake shoe 2, friction plate 3 is fixedly installed in the inner side of brake drum 1, the internal surface of friction plate 3 forms rubbing surface, the internal surface of friction plate 3 forms rubbing surface, for the ease of installing, four edges of friction plate 3 internal surface are equipped with chamfering, make the installation and removal of brake shoe 2 convenient, be convenient to safeguard, when also reducing braking, brake member is to the impact of friction plate 3 simultaneously.Inner side friction plate 3 being fixed on brake drum 1 also has an advantage, can process after installation on lathe, ensure that friction plate 3 and the concentricity of brake drum 1 after installing, adds occlusal contact area, improve friction brake force during friction catch.
Friction plate 3 is divided into some pieces of friction plate monomers 301, gap 302 is provided with between two adjacent friction plate monomers 301, gap 302 is obliquely installed, the internal surface of friction plate 3 is provided with some grooves 303, every bar groove 303 is all communicated with two end faces of friction plate 3, and groove 303 is obliquely installed, both can ventilation and heat, short distance can hold the impurity produced in friction catch process again, realize the large-area material contact braking of brake body.
Brake shoe 2 is provided with some through holes 201, the outer surface of brake shoe 2 is installed with braking plate 4, through hole 201 1 aspect on brake shoe 2 plays thermolysis, on the other hand, these through holes 201 can be utilized when braking plate 4 is installed, use bolt or rivet, braking plate 4 is fixed on brake shoe 2, prevents brake shoe 2 to be worn.The internal surface of braking plate 4 offers the curve bath 401 of circumference extension, two ends are penetrating in the direction of extension for these curve baths 401, form ventilation slot, this curve bath 401 forms crisscross air-flow path with the groove 303 on friction plate 3, during hub rotation, it is distinguished and admirable that friction plate 3 is formed, and imports curve bath 401, can take away the heat that friction catch produces in time.
The internal surface of braking plate 4 is provided with thermal-protective coating 402, and thermal-protective coating 402 and braking plate 4 are combined as a whole, and add the effect of heat insulation of braking plate 4.
Should be appreciated that the purposes of these embodiments is only not intended to for illustration of the present invention limit the scope of the invention.In addition; also should understand; after having read technology contents of the present invention, those skilled in the art can make various change, amendment and/or modification to the present invention, and these all equivalent form of values fall within the protection domain that the application's appended claims limits equally.
Claims (10)
1. drum brake, comprises brake drum, friction plate and brake shoe, it is characterized in that: described friction plate is fixedly installed in the inner side of described brake drum, and the internal surface of described friction plate forms rubbing surface.
2. drum brake as claimed in claim 1, is characterized in that: described friction plate is divided into some pieces of friction plate monomers.
3. drum brake as claimed in claim 2, is characterized in that: be provided with gap between friction plate monomer described in adjacent two.
4. drum brake as claimed in claim 3, is characterized in that: described gap is obliquely installed.
5. drum brake as claimed in claim 1, is characterized in that: the internal surface of described friction plate is provided with some grooves.
6. drum brake as claimed in claim 5, is characterized in that: described groove slant is arranged.
7. the drum brake as described in any one of claim 1 to 6 claim, is characterized in that: described brake shoe is provided with some through holes.
8. drum brake as claimed in claim 7, is characterized in that: the outer surface of described brake shoe is installed with braking plate.
9. drum brake as claimed in claim 8, is characterized in that: the internal surface of described braking plate offers the curve bath of circumference extension.
10. drum brake as claimed in claim 8, is characterized in that: the internal surface of described braking plate is provided with thermal-protective coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510165932.6A CN104728316A (en) | 2015-04-09 | 2015-04-09 | Drum brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510165932.6A CN104728316A (en) | 2015-04-09 | 2015-04-09 | Drum brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104728316A true CN104728316A (en) | 2015-06-24 |
Family
ID=53452543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510165932.6A Pending CN104728316A (en) | 2015-04-09 | 2015-04-09 | Drum brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104728316A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107606008A (en) * | 2017-10-27 | 2018-01-19 | 宜昌亿特利缓速器有限责任公司 | Brake bush component and the brake for including it |
| CN113217566A (en) * | 2021-06-07 | 2021-08-06 | 河北百龙汽车配件股份有限公司 | Automobile brake drum with strip-shaped reinforcing ribs |
-
2015
- 2015-04-09 CN CN201510165932.6A patent/CN104728316A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107606008A (en) * | 2017-10-27 | 2018-01-19 | 宜昌亿特利缓速器有限责任公司 | Brake bush component and the brake for including it |
| CN107606008B (en) * | 2017-10-27 | 2024-05-07 | 宜昌亿特利缓速器有限责任公司 | Brake friction plate assembly and brake comprising same |
| CN113217566A (en) * | 2021-06-07 | 2021-08-06 | 河北百龙汽车配件股份有限公司 | Automobile brake drum with strip-shaped reinforcing ribs |
| CN113217566B (en) * | 2021-06-07 | 2022-05-31 | 河北百龙汽车配件股份有限公司 | Automobile brake drum with strip-shaped reinforcing ribs |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204533298U (en) | Drum brake | |
| CN104728316A (en) | Drum brake | |
| CN102678789A (en) | Eddy current and friction brake device for vehicles | |
| CN208138357U (en) | A kind of wear-resistant brake disc of automobile | |
| WO2017106776A1 (en) | Friction lining and brake pad for a braking system | |
| CN205715384U (en) | A kind of heat-dissipation brake disc | |
| CN204025418U (en) | With the clutch driven disc assembly of friction plate air intake runner | |
| CN206929254U (en) | A kind of heat radiating type automobile brake disc | |
| CN205745019U (en) | A kind of novel heavy duty load brake disc combination | |
| CN205715372U (en) | A kind of automobile brake disc | |
| CN204025423U (en) | One-way air gravity flow rotates air exhaust type clutch driven disc assembly | |
| CN208010651U (en) | A kind of modified slurry pump impeller | |
| CN206802144U (en) | A kind of assemble type motorcycle disk brake | |
| CN205715371U (en) | A kind of heat radiation anti-slip brake disc | |
| CN103591191A (en) | Automatic-cleaning disc-type brake pad | |
| CN101565910B (en) | Refiner | |
| CN204533299U (en) | A kind of brake shoe | |
| CN205136424U (en) | Wear -resisting dustless brake drum | |
| CN103591198A (en) | Multi-working-condition wear-resistant brake pad | |
| CN203809497U (en) | Crankshaft and compressor | |
| CN208702983U (en) | A kind of brake block of rapid cooling | |
| CN203604517U (en) | Multi-working-condition wear-resisting brake block | |
| CN202199379U (en) | Novel hammer disc for hammer mill | |
| CN205578562U (en) | Automobile braking disk | |
| CN205207497U (en) | Brake disc |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150624 |