CN209524022U - Dovetail steel back integral type powder metallurgy rivets brake lining - Google Patents
Dovetail steel back integral type powder metallurgy rivets brake lining Download PDFInfo
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- CN209524022U CN209524022U CN201821641361.4U CN201821641361U CN209524022U CN 209524022 U CN209524022 U CN 209524022U CN 201821641361 U CN201821641361 U CN 201821641361U CN 209524022 U CN209524022 U CN 209524022U
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- dovetail
- brake lining
- backing plate
- friction piece
- rivets
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Abstract
The utility model discloses a kind of dovetail steel back integral type powder metallurgy to rivet brake lining, dovetail steel backing plate component including integrally casting, multiple brake lining friction pieces are fixed with by flat head rivet on dovetail steel backing plate component, circular gasket is equipped between brake lining friction piece and dovetail steel backing plate component, each brake lining friction piece includes the friction piece pressed together and irregular hexagon connection sheet.It using the structure for installing elastomeric pad between steel back and dovetail integral type, steel back and friction piece, not only can guarantee that there are certain gap adjustment amounts between steel back and friction piece, but also can guarantee that brake pad is used safely.
Description
Technical field
The utility model relates to a kind of bullet train brake pad more particularly to a kind of dovetail steel back integral type powder smeltings
Gold riveting brake lining.
Background technique
Powder metallurgy brake pad is bullet train service braking brake lining, and existing powder metallurgy brake pad, dovetail and steel back are big
It mostly uses split type structure and dovetail and steel back is riveted together using riveting process, drag friction body and steel back also use riveting
Connect or welding procedure connection, complex process, after abrasion to limit, brake lining friction piece is difficult to dismantle, extremely inconvenient, and steel back with
Adjustment amount very close to each other between friction piece cannot reach maximum when brake lining is by contact pressure from disc rotation
The fitting of area in turn results in contact surface discontinuity, and influences braking ability stability, and cannot ensure that friction generates
Thermal energy uniformly spread in brake pad, directly result in rubbing surface part overload overheat, and then cause brake lining surface generate
Fire check.Contact surface it is uneven also can accelerated wear test percussion movement and increase material abrasion.Also, connect dovetail and steel back
Rivet there are the risk of fracture failure so that dovetail and steel back removing fall off, security risk is caused to train driving.
Utility model content
The purpose of the utility model is to provide a kind of dovetail steel back integral type powder metallurgy to rivet brake lining.
The purpose of this utility model is achieved through the following technical solutions:
The dovetail steel back integral type powder metallurgy of the utility model rivets brake lining, the dovetail steel back board group including integrally casting
Part is fixed with multiple brake lining friction pieces, the brake lining friction piece and dovetail by flat head rivet on the dovetail steel backing plate component
Circular gasket is equipped between steel backing plate component, each brake lining friction piece includes the friction piece pressed together and irregular hexagon
Connection sheet.
The dovetail steel back provided by the embodiment of the utility model it can be seen from above-mentioned technical solution provided by the utility model
Integral type powder metallurgy rivets brake lining, due to installing elastomeric pad using between steel back and dovetail integral type, steel back and friction piece
Structure, not only can guarantee that there are certain gap adjustment amounts between steel back and friction piece, but can guarantee brake pad use safely.
Detailed description of the invention
Fig. 1 a, Fig. 1 b, Fig. 1 c are respectively dovetail steel back integral type powder metallurgy riveting provided by the embodiment of the utility model
Brake lining solid, side, structure schematic diagram；
Fig. 2 a, Fig. 2 b, Fig. 2 c are respectively the back side, the side of powder metallurgy brake pad dovetail steel back in the utility model embodiment
Face, positive structure schematic；
Fig. 3 a, Fig. 3 b, Fig. 3 c are respectively friction piece in the utility model embodiment, irregular hexagon connection sheet, brake lining
The structural schematic diagram of friction piece；
Fig. 4 a, Fig. 4 b are respectively the front of circular gasket, structure schematic diagram in the utility model embodiment；
Fig. 5 a, Fig. 5 b are respectively the side of flat head rivet, schematic perspective view in the utility model embodiment；
Description of symbols:
1, dovetail steel backing plate component；1-1, steel backing plate；1-2, dovetail boss；1-3, stepped hole；1-4, heavy chamber；2, brake lining rubs
Rub body；2-1, irregular hexagon connection sheet；2-2, friction piece；2-3, through-hole；2-4, positioning column；2-5, location hole；2-6, circle
Shape through-hole；3, circular gasket；3-1, internal diameter；4, flat head rivet；4-1, rivet cap；4-2, rivet shaft.
Specific embodiment
The utility model embodiment will be described in further detail below.Do not make in the utility model embodiment in detail
The content of description belongs to the prior art well known to professional and technical personnel in the field.
The dovetail steel back integral type powder metallurgy of the utility model rivets brake lining, and preferable specific embodiment is:
Dovetail steel backing plate component including integrally casting is fixed on the dovetail steel backing plate component more by flat head rivet
A brake lining friction piece is equipped with circular gasket, each brake lining friction piece packet between the brake lining friction piece and dovetail steel backing plate component
Include the friction piece pressed together and irregular hexagon connection sheet.
The rivet shaft of the flat head rivet passes sequentially through the circular through hole of the brake lining friction piece, the connection of irregular hexagon
The stepped hole of the through-hole of piece, the internal diameter of circular gasket and dovetail steel backing plate component, which rivets, to be fixed.
Each brake lining friction piece is using 3 flat head rivets and 3 circular gaskets and the fixed riveting of the dovetail steel backing plate component
It connects, gap is equipped between adjacent brake lining friction piece.
The dovetail steel backing plate component is the plank frame of irregular polygon, and dovetail steel backing plate component front is steel back
Plate, the back side are dovetail boss, and steel backing plate and dovetail boss are the integrated formed structure that slab metal machinery adds.
5 brake lining friction pieces are fixed on every piece of dovetail steel backing plate component, the dovetail steel backing plate component is set
15 stepped holes are set, the stepped hole top is equipped with chamfering.
The heavy chamber of position setting rectangle among the dovetail boss, with round-corner transition, the depth of heavy chamber is lower than at the angle of heavy chamber
The thickness of dovetail.
The irregular hexagon connection sheet and the one pressureless sintering of friction piece green compact form, the irregular hexagon
Corner is equipped with arc angling, and the friction piece green compact is by matrix constituent element, lubricant component, friction component through mixing compression moulding.
The friction piece green compact is set there are two positioning column, and corresponding position is equipped with two in the irregular hexagon connection sheet
A location hole.
The circular gasket is process using steel spring plate, with a thickness of 1mm.
The flat head rivet is machined using high-strength stainless steel, and rivet shaft tail portion carries out chamfering.
The dovetail steel back integral type powder metallurgy of the utility model rivets brake lining, overcomes existing brake lining dovetail and steel back riveting
Between socket part position intensity deficiency, steel back and friction piece the shortcomings that adjustment amount very close to each other, using steel back and dovetail integral type, steel back
The brake lining that elastomeric pad is installed between friction piece both can guarantee between steel back and friction piece there are certain gap adjustment amount,
It can guarantee that brake pad is used safely again.
In the utility model, brake lining friction piece distribution straggly in the dovetail steel back, brake lining friction shape is arranged in
Certain gap is equipped between piece and piece, convenient for heat dissipation, reduce brake lining it is whole in braking process because of the deflection of expanded by heating,
Abrasive dust convenient for brake lining friction piece when braking is discharged in time.
The brake lining friction piece assembled in the dovetail steel back in swallow-tail form backboard plane unit radius friction area with
Friction radius it is square proportional, the braking energy that the brake lining friction piece on guarantor unit's area is born is identical, ensure that
The abrasion of brake lining friction piece on unit area are identical, can effectively improve brake lining service life.
The brake lining friction piece is equipped with smooth fillet, ensure that brake lining friction piece in the edge of the friction piece
Friction piece edge will not fall off in high-speed friction braking process because edge effect is broken.
The brake lining friction piece the friction piece triangle portion there are circular through hole, guarantee that the flat head rivet can
Across connection, while guaranteeing bulge phenomenon will not occur because of expanded by heating when powder metallurgy brake pad braking.
The irregular hexagon connection plate plane of the brake lining friction piece is equipped with the logical of plane on through-hole, with the friction piece
Hole is corresponding, and diameter is corresponding with the rivet shaft of flat head rivet less than the diameter of plain through holes on the friction piece, guarantees institute
It will not cause to fall off because of braking friction when stating powder metallurgy brake pad braking.
The powder metallurgy brake pad may be implemented automatic fine tuning by gasket and control dynamic plane in the braking process,
It is flat and fit with brake disc, carries out friction catch.
The uniform heat distribution when brake lining works, even wearing can effectively adjust brake lining deformation, reduce brake force because overcoming
Deformation and caused by lose, and have the characteristics that convenient disassembly when replacement, and brake lining friction piece intensity is high, can effectively inhibit to make
With middle abrasion chip off-falling phenomenon.Mounting structure and position of the utility model by optimization dovetail steel backing plate component and rivet, drop
The shearing force and drawing force that low dovetail is subject to, improve the bonding strength of brake lining friction piece and dovetail steel backing plate component, guarantee
Elastic floating of the brake lining friction piece along rivet direction.
Specific embodiment:
As shown in Fig. 1 a, Fig. 1 b, Fig. 1 c~Fig. 5 a, Fig. 5 b, the utility model discloses a kind of dovetail steel back integral type powder
Last metallurgy riveting brake lining, the brake lining includes the brake lining friction piece 2,15 of dovetail steel backing plate component 1,5 of 1 integrally casting
Circular gasket 3 and 15 flat head rivet 4.The dovetail steel back integral type powder metallurgy riveting brake lining passes through the riveting of flat head rivet 4
Nail axis 4-2 passes sequentially through the internal diameter 3-1 of the through-hole 2-3 of the irregular hexagon connection sheet 2-1 of brake lining friction piece 2, circular gasket 3
It rivets and fixes with the stepped hole 1-3 of the dovetail steel backing plate component 1 of the integrally casting.
As shown in Fig. 1 a, Fig. 1 b, Fig. 1 c, each brake lining friction piece 2 of the utility model is using 3 flat head rivets 4 according to institute
State the fixed riveting of dovetail steel backing plate component 1 of connection type and integrally casting.2 shape of brake lining friction piece is arranged between piece and piece
Equipped with certain gap.
As shown in Fig. 2 a, Fig. 2 b, Fig. 2 c, the utility model dovetail steel backing plate component 1 is slab metal machining part, is
The plank frame of irregular polygon, 1 side of dovetail steel backing plate component are the steel backing plate 1-1 of machine-shaping, and another side is processing
Molding dovetail boss 1-2, steel backing plate 1-1 and dovetail boss 1-2 are an integral molding structure.15 rules are arranged in steel backing plate 1-1
The stepped hole 1-3 for being used to be fixedly connected the brake lining friction piece of arrangement, stepped hole 1-3 are open towards the side dovetail boss 1-2,
And the top stepped hole 1-3 carries out chamfering.The heavy chamber 1-4 of setting rectangle among dovetail boss 1-2, the angle of heavy chamber 1-4 is with fillet
The depth of transition, heavy chamber 1-4 is lower than the thickness of dovetail.
As shown in Fig. 3 a, Fig. 3 b, Fig. 3 c, the utility model brake lining friction piece 2 is that there are six irregular the six of arc angling
Side shape connection sheet 2-1 and the one pressureless sintering of friction piece 2-2 green compact form.Chamfering ensure that friction piece edge in high-speed friction system
It will not fall off because edge effect is broken during dynamic.The friction piece 2-2 green compact is by matrix constituent element, lubricant component, friction group
Member is through mixing compression moulding.There are six be uniformly distributed 3 installation tack rivetings on the irregular hexagon connection sheet 2-1 of arc angling
The through-hole 2-3 of nail 4, and the location hole 2-5 for matching with friction piece 2-2 green compact positioning column 2-4.Friction piece 2-2 green compact
The position through-hole 2-3 of corresponding irregular hexagon connection sheet 2-1 is equipped with circular through hole 2-6, passes through convenient for flat head rivet 4 round logical
The irregular hexagon connection sheet 2-1 of hole 2-6 connection, while ensure that friction piece will not be because heated in high-speed friction braking process
It expands and heaves.
As shown in Fig. 4 a, Fig. 4 b, the utility model circular gasket 3 is process using steel spring plate, and internal diameter 3-1 is set in
In the inner shaft of flat head rivet 4, with a thickness of 1mm.
As shown in Fig. 5 a, Fig. 5 b, the utility model flat head rivet 4 is machined using high-strength stainless steel, by riveting
Head of a nail 4-1 and rivet shaft 4-2 composition, rivet shaft tail portion carry out chamfering.
It is worth noting that, the brake lining friction plate in the utility model has only related to irregular hexagonal structure, all applications
The design philosophy of the utility model only changes other design structures of friction plate shape in the protection permission of this patent.
In conclusion uniform heat distribution when the brake lining work of the utility model, even wearing can effectively adjust brake lining shape
Become, loss caused by reducing brake force due to overcoming deformation, and has the characteristics that convenient disassembly when replacement, and the brake lining friction piece
Intensity is high, can effectively inhibit to wear chip off-falling phenomenon in use.The utility model passes through optimization dovetail steel backing plate component and rivet
Mounting structure and position, reduce the shearing force and drawing force that dovetail is subject to, improve brake lining friction piece and dovetail steel backing plate
The bonding strength of component ensure that brake lining friction piece along the elastic floating in rivet direction.
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not
It is confined to this, anyone skilled in the art can readily occur in the technical scope that the utility model discloses
Change or replacement, should be covered within the scope of the utility model.Therefore, the protection scope of the utility model should
Subject to the scope of protection of the claims.
Claims (10)
1. a kind of dovetail steel back integral type powder metallurgy rivets brake lining, which is characterized in that the dovetail steel backing plate including integrally casting
Component (1) is fixed with multiple brake lining friction pieces (2), the lock by flat head rivet (4) on the dovetail steel backing plate component (1)
Circular gasket (3) are equipped between piece friction piece (2) and dovetail steel backing plate component (1), each brake lining friction piece (2) includes being pressed together on
Friction piece (2-2) and irregular hexagon connection sheet (2-1) together.
2. dovetail steel back integral type powder metallurgy according to claim 1 rivets brake lining, which is characterized in that the tack riveting
The rivet shaft (4-2) of nail (4) passes sequentially through the circular through hole (2-6) of the brake lining friction piece (2), irregular hexagon connection sheet
Stepped hole (1-3) riveting of the through-hole (2-3) of (2-1), the internal diameter (3-1) of circular gasket (3) and dovetail steel backing plate component (1) is solid
It is fixed.
3. dovetail steel back integral type powder metallurgy according to claim 2 rivets brake lining, which is characterized in that each brake lining rubs
Rub body (2) is adjacent using 3 flat head rivets (4) and the fixed riveting of 3 circular gaskets (3) and the dovetail steel backing plate component (1)
Brake lining friction piece (2) between be equipped with gap.
4. dovetail steel back integral type powder metallurgy according to claim 3 rivets brake lining, which is characterized in that the dovetail steel
Back board module (1) is the plank frame of irregular polygon, and dovetail steel backing plate component (1) front is steel backing plate (1-1), and the back side is
Dovetail boss (1-2), the integrated formed structure that steel backing plate (1-1) and dovetail boss (1-2) add for slab metal machinery.
5. dovetail steel back integral type powder metallurgy according to claim 4 rivets brake lining, which is characterized in that every piece of swallow
5 brake lining friction pieces (2) are fixed on tail steel backing plate component (1), the dovetail steel backing plate component (1) is arranged described in 15
Stepped hole (1-3), the stepped hole top (1-3) are equipped with chamfering.
6. dovetail steel back integral type powder metallurgy according to claim 5 rivets brake lining, which is characterized in that the dovetail is convex
The heavy chamber (1-4) of the intermediate position setting rectangle of platform (1-2), with round-corner transition, the depth of heavy chamber (1-4) is low at the angle of heavy chamber (1-4)
In the thickness of dovetail.
7. dovetail steel back integral type powder metallurgy according to claim 6 rivets brake lining, which is characterized in that described irregular
Hexagon connection sheet (2-1) and friction piece (2-2) green compact one pressureless sintering form, and the corner of the irregular hexagon is equipped with
Arc angling, friction piece (2-2) green compact is by matrix constituent element, lubricant component, friction component through mixing compression moulding.
8. dovetail steel back integral type powder metallurgy according to claim 7 rivets brake lining, which is characterized in that the friction piece
(2-2) green compact is set there are two positioning column (2-4), there are two corresponding position is set on the irregular hexagon connection sheet (2-1)
Location hole (2-5).
9. dovetail steel back integral type powder metallurgy according to any one of claims 1 to 8 rivets brake lining, which is characterized in that
The circular gasket (3) is process using steel spring plate, with a thickness of 1mm.
10. dovetail steel back integral type powder metallurgy according to any one of claims 1 to 8 rivets brake lining, which is characterized in that
The flat head rivet (4) is machined using high-strength stainless steel, and the rivet shaft tail portion (4-2) carries out chamfering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821641361.4U CN209524022U (en) | 2018-10-10 | 2018-10-10 | Dovetail steel back integral type powder metallurgy rivets brake lining |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821641361.4U CN209524022U (en) | 2018-10-10 | 2018-10-10 | Dovetail steel back integral type powder metallurgy rivets brake lining |
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| CN209524022U true CN209524022U (en) | 2019-10-22 |
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| CN201821641361.4U Active CN209524022U (en) | 2018-10-10 | 2018-10-10 | Dovetail steel back integral type powder metallurgy rivets brake lining |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109307030A (en) * | 2018-10-10 | 2019-02-05 | 北京瑞斯福高新科技股份有限公司 | Dovetail steel back integral type powder metallurgy rivets brake lining |
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2018
- 2018-10-10 CN CN201821641361.4U patent/CN209524022U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109307030A (en) * | 2018-10-10 | 2019-02-05 | 北京瑞斯福高新科技股份有限公司 | Dovetail steel back integral type powder metallurgy rivets brake lining |
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