CN202056231U - Powder metallurgy brake pad of fan-shaped friction disc - Google Patents

Powder metallurgy brake pad of fan-shaped friction disc Download PDF

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Publication number
CN202056231U
CN202056231U CN2010206943317U CN201020694331U CN202056231U CN 202056231 U CN202056231 U CN 202056231U CN 2010206943317 U CN2010206943317 U CN 2010206943317U CN 201020694331 U CN201020694331 U CN 201020694331U CN 202056231 U CN202056231 U CN 202056231U
Authority
CN
China
Prior art keywords
brake
friction plate
fan
shaped
friction
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.)
Expired - Lifetime
Application number
CN2010206943317U
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Chinese (zh)
Inventor
邹怀森
周建华
张肖璐
张旭峰
白玲
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BEIJING RAILWAY STAR FORTUNE HIGH-TECH CO., LTD.
Original Assignee
BEIJING QIUZHIYI DATA Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
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Priority to CN2010206943317U priority Critical patent/CN202056231U/en
Application granted granted Critical
Publication of CN202056231U publication Critical patent/CN202056231U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model provides a powder metallurgy brake pad of a fan-shaped friction disc, which comprises a fixed assembly disc, a brake friction plate and a friction plate tray. The brake friction plate is fixed with the fixed assembly disc through the friction plate tray; the friction plate tray is positioned by a positioning stud, and is directly connected with the fixed assembly disc through a T-shaped cylinder and a spring clip on the brake friction plate steel backing; the brake friction plate is formed into a unified whole through pressing and sintering of base enhanced type Cu-based powder metallurgic friction materials and the steel backing, and the brake friction plate is designed into a fan shape according to needs. With the powder metallurgic brake pad of the fan-shaped friction disc adopted, the brake pad deformation can be effectively regulated, and the loss of brake resistance caused by overcoming deformation can be reduced; the powder metallurgic brake pad has the feature of convenience in dismantlement when substituted, and the fan-shaped brake friction plate is high in strength, can effectively reduce the phenomena of abrasion and block-falling when in use.

Description

The powder metallurgy brake lining of fan-shaped friction disk
Technical field
The utility model relates to bullet train and uses powder metallurgy brake pad field, relates in particular to a kind of powder metallurgy brake lining of fan-shaped friction disk.
Background technique
At present, railway is the important foundation facility of country, the main artery and the popular traffic tool of national economy.In order to satisfy the Chinese national economy construction demand, China has introduced EMU and has dropped into actual operation, in order to guarantee the operation of EMU high-speed secure, must possess stable and good braking system.Wherein, brake pad is the critical component and the easily damaged parts of high-speed train braking system; Along with improving constantly of EMU motion speed, the brake load of train also significantly increases, the kinetic energy with huge when brake lining is wanted train operation during braking is converted into heat energy by friction, so require brake lining to have higher mechanical strength, good heat resistance and thermal conductivity, stable frictional behaviour, lower wearing and tearing and reduce abrasion to wheel.
In order to make the relevant supporting technology production domesticization of EMU, domestic in recent years scientific research institutions have launched extensive studies to brake pad.The brake lining that generally uses in the prior art has powder metallurgy and high molecular synthetic material two classes, and composite is low because of intensity, poor heat resistance, heat decline seriously, can not be applicable to the brake request of speed per hour bullet train more than 300 kilometers; And copper based powder metallurgy friction material is good owing to intensity height, thermal conductivity, and advantages such as stable friction performance are comparatively desirable brake lining brake materials.
In the prior art, the powder metallurgy brake lining mainly is made up of fixed underpan, brake strip and friction plate mounting disc three parts, but because the brake lining structural design is unreasonable, under alternating stress and high heat load effect, cause brake lining bending deflection at a high speed in the braking easily and be difficult for recovery, can influence retardation efficiency, cause the loading and unloading difficulty simultaneously.
Summary of the invention
The utility model embodiment provides a kind of powder metallurgy brake lining of fan-shaped friction disk, can effectively regulate brake lining deformation, reduce braking force because of overcoming the loss that distortion causes, and have characteristics of convenient disassembly when changing, and the brake strip intensity height that this is fan-shaped wears away the piece phenomenon in effectively suppressing to use.
The utility model embodiment provides a kind of powder metallurgy brake lining of fan-shaped friction disk, and described powder metallurgy brake lining comprises fixedly assembling dish, brake strip and friction plate pallet three parts, wherein:
Described brake strip is fixed through described friction plate pallet and described fixedly assembling dish;
Described friction plate pallet is located by locating stud, and directly is connected with described fixedly assembling dish by T shape cylinder on the described brake strip steel backing and spring clamp;
Described brake strip forms unified integral body by matrix enhancement mode copper based powder metallurgy friction material and steel backing compacting sintering, and is designed to sector structure as required.
Described brake strip steel backing Vertical direction design has half-cylindrical convex surface, and the concave surface of this convex surface and the design of described friction plate pallet Vertical direction is fitted, and effectively regulates the deformation that in the braking process brake lining is caused.
Described friction plate pallet designs on the direction parallel with described fixedly assembling dish half-cylindrical convex surface, and the concave surface that designs on this convex surface and the described fixedly assembling dish substantially horizontal is fitted, and can effectively regulate the deformation that in the braking process brake lining is caused equally.
The distribution straggly on described fixedly assembling dish of described brake strip reduces brake lining integral body amount of deformation because of expanded by heating in braking process.
By the above-mentioned technological scheme that provides as can be seen, described powder metallurgy brake lining comprises fixedly assembling dish, brake strip and friction plate pallet three parts, and wherein said brake strip is fixed through described friction plate pallet and described fixedly assembling dish; Described friction plate pallet is located by locating stud, and directly is connected with described fixedly assembling dish by T shape cylinder on the described brake strip steel backing and spring clamp; Described brake strip forms unified integral body by matrix enhancement mode copper based powder metallurgy friction material and steel backing compacting sintering, and is designed to sector structure as required.By this brake lining, can effectively regulate brake lining deformation, reduce braking force and be out of shape the loss that causes, and have the characteristics of convenient disassembly when changing because of overcoming, and this fan-shaped brake strip intensity height, wear away the piece phenomenon in effectively suppressing to use.
Description of drawings
Fig. 1 is the powder metallurgy brake lining structural representation of the utility model fan-shaped friction disk that embodiment provides;
Fig. 2 is the plan view of the utility model fan-shaped brake strip that embodiment provides;
Fig. 3 is the A-A rotation schematic representation of the utility model fan-shaped brake strip that embodiment provides;
Fig. 4 is the side view of the utility model fan-shaped brake strip that embodiment provides;
Fig. 5 provides the plan view of friction plate pallet for the utility model embodiment;
Fig. 6 provides the A-A rotation schematic representation of friction plate pallet for the utility model embodiment;
Fig. 7 provides the B-B rotation schematic representation of friction plate pallet for the utility model embodiment;
Fig. 8 provides the side view of friction plate pallet for the utility model embodiment;
Fig. 9 provides the fixedly structural representation of assembling dish for the utility model embodiment.
Embodiment
The utility model embodiment provides a kind of powder metallurgy brake lining of fan-shaped friction disk, can effectively regulate brake lining deformation, reduce braking force because of overcoming the loss that distortion causes, and have characteristics of convenient disassembly when changing, and the brake strip intensity height that this is fan-shaped wears away the piece phenomenon in effectively suppressing to use.
For better describing the utility model mode of execution, now in conjunction with the accompanying drawings embodiment of the present utility model is described, be illustrated in figure 1 as the powder metallurgy brake lining structural representation of the utility model fan-shaped friction disk that embodiment provides, comprise fixedly assembling dish 2-1, brake strip 2-3 and friction plate pallet 2-2 three parts among Fig. 1, wherein:
Described brake strip is fixed through described friction plate pallet and described fixedly assembling dish; Described friction plate pallet is located by locating stud, and directly is connected with described fixedly assembling dish by T shape cylinder on the described brake strip steel backing and spring clamp; Described brake strip forms unified integral body by matrix enhancement mode copper based powder metallurgy friction material and steel backing compacting sintering, and is designed to sector structure as required.
In addition, described brake strip steel backing Vertical direction design has half-cylindrical convex surface, the concave surface of this convex surface and the design of described friction plate pallet Vertical direction is fitted, effectively regulate the deformation that in the braking process brake lining is caused, fit with assurance brake lining rubbing surface and brake disc, simultaneously the also easy dismounting and change of this brake strip.The friction plate pallet also designs on the direction parallel with the assembling dish half-cylindrical convex surface, and the concave surface that designs on this convex surface and the assembling dish substantially horizontal is fitted, and can effectively regulate the deformation that in the braking process brake lining is caused equally.
In addition, above-mentioned brake strip can stragglyly distribute on the assembling dish, thereby reduces brake lining integral body amount of deformation because of expanded by heating in braking process.
Below in conjunction with accompanying drawing brake lining of the present utility model is elaborated, the plan view of the fan-shaped brake strip of provide is provided Fig. 2, and the A-A rotation schematic representation of the fan-shaped brake strip of provide is provided Fig. 3, and the side view of the fan-shaped brake strip of provide is provided Fig. 4; The plan view of providing friction plate pallet is provided Fig. 5; The A-A rotation schematic representation of providing friction plate pallet is provided Fig. 6, and the B-B rotation schematic representation of providing friction plate pallet is provided Fig. 7, and the side view of providing friction plate pallet is provided Fig. 8; Be illustrated in figure 9 as the fixedly structural representation of assembling dish, and in conjunction with above-mentioned accompanying drawing 1, concrete structure is formed and is assembled into:
Friction plate pallet (2-2) is fitted in fixedly by the half-cylindrical convex surface (6-2) of locating pin (6-1) and tray back and half-cylindrical concave surface (4-1) on the fixing assembling dish (2-1) and locatees on the assembling dish;
First cylindrical convex surface of brake strip steel backing (5-1) half-cylindrical concave surface (6-3) direct and on the friction plate pallet contacts, the wire nail (5-2) that has simultaneously T type groove on the brake strip steel backing pass the friction plate pallet and fixedly the circular hole on the assembling dish three is linked together, and at the fixing counterbore place of assembling dish T type groove is fixed with spring clamp; This brake strip is designed to sector structure.
In addition, brake strip, friction plate pallet, the fixing wire nail and the structure that is fixed together of spring clamp of assembling dish three by having T type groove on the brake strip steel backing, it is conveniently replaced to help friction plate.
It should be noted that the brake strip in the utility model has only related to sector structure, allly used design philosophy of the present utility model and only change other project organization of friction plate shape all in the protection authority of this patent.
In sum, brake lining of the present utility model can effectively be regulated brake lining deformation, reduces braking force and is out of shape the loss that causes because of overcoming, and have the characteristics of convenient disassembly when changing, and the brake strip intensity height that this is fan-shaped wears away the piece phenomenon in effectively suppressing to use.
The above; it only is the preferable embodiment of the utility model; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the variation that can expect easily or replacement all should be encompassed within the protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of claims.

Claims (3)

1. the powder metallurgy brake lining of a fan-shaped friction disk is characterized in that, described powder metallurgy brake lining comprises fixedly assembling dish, brake strip and friction plate pallet three parts, wherein:
Described brake strip is fixed through described friction plate pallet and described fixedly assembling dish;
Described friction plate pallet is located by locating stud, and directly is connected with described fixedly assembling dish by T shape cylinder on the described brake strip steel backing and spring clamp;
Described brake strip is designed to sector structure.
2. brake lining as claimed in claim 1 is characterized in that, described brake strip steel backing Vertical direction design has half-cylindrical convex surface, and the concave surface of this convex surface and the design of described friction plate pallet Vertical direction is fitted.
3. brake lining as claimed in claim 1 is characterized in that, described friction plate pallet designs on the direction parallel with described fixedly assembling dish half-cylindrical convex surface, and the concave surface that designs on this convex surface and the described fixedly assembling dish substantially horizontal is fitted.
CN2010206943317U 2010-12-31 2010-12-31 Powder metallurgy brake pad of fan-shaped friction disc Expired - Lifetime CN202056231U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010206943317U CN202056231U (en) 2010-12-31 2010-12-31 Powder metallurgy brake pad of fan-shaped friction disc

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010206943317U CN202056231U (en) 2010-12-31 2010-12-31 Powder metallurgy brake pad of fan-shaped friction disc

Publications (1)

Publication Number Publication Date
CN202056231U true CN202056231U (en) 2011-11-30

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105864328A (en) * 2016-06-08 2016-08-17 湖南鼎懋科技有限公司 Train brake pad
CN110375018A (en) * 2019-06-24 2019-10-25 中国科学院山西煤炭化学研究所 A kind of bullet train brake pad and its installation method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105864328A (en) * 2016-06-08 2016-08-17 湖南鼎懋科技有限公司 Train brake pad
CN110375018A (en) * 2019-06-24 2019-10-25 中国科学院山西煤炭化学研究所 A kind of bullet train brake pad and its installation method

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GR01 Patent grant
C14 Grant of patent or utility model
CP03 Change of name, title or address

Address after: 102200 Beijing science and Technology Park of Changping District Bai Fu Road 10 Beikong science and technology building 1006B

Patentee after: BEIJING RAILWAY STAR FORTUNE HIGH-TECH CO., LTD.

Address before: 102200, A316, Zhongxing Road, 10 Changping District science and Technology Park, Beijing

Patentee before: Beijing Qiuzhiyi Data Co., Ltd.

C56 Change in the name or address of the patentee

Owner name: BEIJING RAILWAY STAR FORTUNE HIGH-TECH CO., LTD.

Free format text: FORMER NAME: BEIJING RUISIFU TECHNOLOGY CO., LTD.

CX01 Expiry of patent term

Granted publication date: 20111130

CX01 Expiry of patent term