CN201724863U - Brake shoe back and friction piece bonding strength test fixture - Google Patents

Brake shoe back and friction piece bonding strength test fixture Download PDF

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Publication number
CN201724863U
CN201724863U CN2010202117873U CN201020211787U CN201724863U CN 201724863 U CN201724863 U CN 201724863U CN 2010202117873 U CN2010202117873 U CN 2010202117873U CN 201020211787 U CN201020211787 U CN 201020211787U CN 201724863 U CN201724863 U CN 201724863U
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China
Prior art keywords
friction piece
base
steel backing
test fixture
strength test
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Expired - Lifetime
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CN2010202117873U
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Chinese (zh)
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冯学理
刘源
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Beijing Tianyishangjia New Material Co Ltd
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Abstract

The utility model relates to a fixture which comprises a pressing head, a pressing cover and a base. The top surface and the bottom surface of the pressing head are flat and are in parallel. The pressing cover is connected on the base through a bolt and is used for tightly fixing a brake shoe test sample in the fixture. The base can be connected on the pressurizing platform of a universal material tester through bolts. The utility model has the advantages of simple structure, easy manufacture, low cost and very convenient use during testing.

Description

A kind of brake lining steel backing and friction piece bond strength test fixture
Technical field
The utility model relates to a kind of brake lining steel backing and friction piece bond strength test fixture, belongs to the powder metallurgy friction material field.
Background technology
Powder metallurgy friction material is to be matrix with metal and alloy thereof, adds friction constituent element and lubricant component, the compound substance made from powder metallurgy process.Powder metallurgy friction material has enough intensity, suitable and stable friction factor, and stable working is reliable, and is wear-resisting and pollute advantages such as few, is to use one of material more widely in the modern brake material family.
Present China rapid economic development, the railway passenger and freight freight volume increases sharply, and the high speed of transportation by railroad has become inevitable development trend.China has opened the above bullet train of speed per hour 300km at present.The train high speed is had higher requirement to the brake pad that brake system has very high requirement, particularly brake system, and wherein technology is the most ripe, most widely used is the powder metallurgy brake pad.
The brake lining that powder metallurgical technique is made as shown in Figure 1, comprises friction piece 11 and steel backing 12.On the steel backing 12 suitable bindiny mechanism can also be arranged, be used to be assembled into brake plate support, refill and be fitted in the brake system.Steel backing 12 be in the pressure sintering process of brake lining with friction piece 11 strong bonded together, friction piece 11 can not come off in braking procedure.That is, friction piece 11 must reach certain numerical value with the bond strength of steel backing 12.Along with the development of high speed railway and heavy-duty vehicle, more and more higher to the bond strength requirement of friction piece 11 and steel backing 12, so the necessary bond strength of estimating friction piece 11 and steel backing 12 in the actual production process.
In order to estimate the bond strength of friction piece 11 and steel backing 12, generally be to utilize shear test that friction piece 11 and steel backing 12 are thrown off, measure the maximum load in the shear test process, again through suitably calculating the shear resistance in the test process, with this evaluation criterion as friction piece 11 and steel backing 12 bond strengths.Shear resistance need reach certain numerical value according to different vehicles.And shear test utilizes universal testing machine to carry out usually, but universal testing machine needs the friction piece 11 of suitable anchor clamps aptitude test brake lining and the shearing bond strength between the steel backing 12.
Summary of the invention
The utility model provides a kind of brake lining steel backing and friction piece shearing bond strength test fixture, is used to overcome the above problems.
Anchor clamps of the present utility model comprise pressure head, gland and base.Pressure head end face and bottom surface are flat, and parallel.Gland is connected on the base by bolt, is used for the brake lining sample is fastened on anchor clamps.Base can be connected on the pressurization platform of universal testing machine by bolt.
Brake lining steel backing of the present utility model and friction piece shearing bond strength test fixture are simple in structure, handling ease, and cost is low, and is very easy to use in test process.
Description of drawings
Fig. 1 is the synoptic diagram of brake lining structure;
Fig. 2 is steel backing of the present utility model and friction piece bond strength test fixture;
Fig. 3 is the bond strength that anchor clamps of the present utility model are used to test steel backing and friction piece.
Embodiment
The utility model is described with reference to the accompanying drawings.
Fig. 2 is steel backing of the present utility model and friction piece bond strength test fixture, and Fig. 3 is the utility model anchor clamps synoptic diagram in use.
Anchor clamps of the present utility model comprise pressure head 1, gland 2 and base 3.Pressure head end face and bottom surface are flat, and parallel, so that pressure is vertically acted on the steel backing 12 of specimen.Gland 2 is connected on the base 3 by bolt 4, is used for the brake lining sample is fastened on anchor clamps.Base 3 can be connected on the pressurization platform of universal testing machine by bolt 5.
In actual test process, the length and the width criteria of specimen can be turned to 40 * 20mm, the thickness calibration of friction piece turns to 15mm.Shearing bond strength by this standard model test steel backing and friction piece.Like this, length, height H and the width W of the cavity of gland 2 and base 3 formation are respectively 40mm, 20mm and 15mm.When test, utilize bolt that base 3 is fixed on the universal testing machine.Take off gland 2 earlier, friction piece 11 is placed on the base 3, utilize bolt that gland 2 is pressed on the base 3, friction piece 11 is reached beyond the base 3, do not hindered when steel backing 12 is moved down in loading procedure by base 3.Pressure head 1 is pressed on the steel backing 12, exerts pressure steel backing 12 is separated with friction piece 11, write down the maximum load in the test process, promptly obtain the bond strength of steel backing 12 and friction piece 11 divided by the shear area of sample.
Brake lining steel backing of the present utility model and friction piece shearing bond strength test fixture are simple in structure, handling ease, and cost is low, and is very easy to use in test process.

Claims (2)

1. the steel backing of a brake lining and friction piece bond strength test fixture comprise pressure head (1), gland (2) and base (3).
2. anchor clamps according to claim 1 is characterized in that the length of the cavity that gland (2) and base (3) form, highly (H) and width (W) are respectively 40mm, 20mm and 15mm.
CN2010202117873U 2010-06-02 2010-06-02 Brake shoe back and friction piece bonding strength test fixture Expired - Lifetime CN201724863U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010202117873U CN201724863U (en) 2010-06-02 2010-06-02 Brake shoe back and friction piece bonding strength test fixture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010202117873U CN201724863U (en) 2010-06-02 2010-06-02 Brake shoe back and friction piece bonding strength test fixture

Publications (1)

Publication Number Publication Date
CN201724863U true CN201724863U (en) 2011-01-26

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010202117873U Expired - Lifetime CN201724863U (en) 2010-06-02 2010-06-02 Brake shoe back and friction piece bonding strength test fixture

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CN (1) CN201724863U (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102944485A (en) * 2012-11-05 2013-02-27 北京瑞斯福科技有限公司 Shearing strength testing device of powder metallurgy brake pad for high speed train
CN103033416A (en) * 2012-11-23 2013-04-10 宁波电工合金材料有限公司 Clamp for testing bonding strength of compound contact
CN106908318A (en) * 2017-03-03 2017-06-30 哈尔滨工业大学（威海） The basic mechanical performance test device of core drilling method sample
CN107576613A (en) * 2017-09-30 2018-01-12 贵州新安航空机械有限责任公司 Watt back of the body and friction piece longitudinal direction cohesion test fixture of a kind of powder metallurgy brake brake shoe
CN109444042A (en) * 2018-12-26 2019-03-08 鑫精合激光科技发展（北京）有限公司 A kind of friction sticking strength test device

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102944485A (en) * 2012-11-05 2013-02-27 北京瑞斯福科技有限公司 Shearing strength testing device of powder metallurgy brake pad for high speed train
CN102944485B (en) * 2012-11-05 2014-12-10 北京瑞斯福高新科技股份有限公司 Shearing strength testing device of powder metallurgy brake pad for high speed train
CN103033416A (en) * 2012-11-23 2013-04-10 宁波电工合金材料有限公司 Clamp for testing bonding strength of compound contact
CN106908318A (en) * 2017-03-03 2017-06-30 哈尔滨工业大学（威海） The basic mechanical performance test device of core drilling method sample
CN107576613A (en) * 2017-09-30 2018-01-12 贵州新安航空机械有限责任公司 Watt back of the body and friction piece longitudinal direction cohesion test fixture of a kind of powder metallurgy brake brake shoe
CN107576613B (en) * 2017-09-30 2023-11-14 贵州新安航空机械有限责任公司 Powder metallurgy brake shoe's tile back and friction body longitudinal adhesion test fixture
CN109444042A (en) * 2018-12-26 2019-03-08 鑫精合激光科技发展（北京）有限公司 A kind of friction sticking strength test device

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C14 Grant of patent or utility model
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ASS Succession or assignment of patent right

Owner name: WU PEIFANG

Free format text: FORMER OWNER: BEIJING TIANYI SHANGJIA NEW MATERIAL CO., LTD.

Effective date: 20110303

C41 Transfer of patent application or patent right or utility model
TR01 Transfer of patent right

Effective date of registration: 20110303

Address after: 102206 Beijing city Haidian District town Yongtai Village No. 198

Patentee after: Wu Peifang

Address before: 102206 Beijing city Haidian District town Yongtai Village No. 198

Patentee before: Beijing Tianyishangjia New Materials Co., Ltd.

ASS Succession or assignment of patent right

Owner name: BEIJING TIANYI SHANGJIA NEW MATERIAL CO., LTD.

Free format text: FORMER OWNER: WU PEIFANG

Effective date: 20120928

C41 Transfer of patent application or patent right or utility model
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Free format text: CORRECT: ADDRESS; FROM: 102206 HAIDIAN, BEIJING TO: 100094 HAIDIAN, BEIJING

TR01 Transfer of patent right

Effective date of registration: 20120928

Address after: 100094 Beijing city Haidian District Town West Xin Li Tun Cun Nan Railway North 500 meters

Patentee after: Beijing Tianyishangjia New Materials Co., Ltd.

Address before: 102206 Beijing city Haidian District town Yongtai Village No. 198

Patentee before: Wu Peifang

PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of utility model: Brake shoe back and friction piece bonding strength test fixture

Effective date of registration: 20130326

Granted publication date: 20110126

Pledgee: Bank of Communications Ltd Beijing Zhongguancun Park sub branch

Pledgor: Beijing Tianyishangjia New Materials Co., Ltd.

Registration number: 2013990000172

PLDC Enforcement, change and cancellation of contracts on pledge of patent right or utility model
PC01 Cancellation of the registration of the contract for pledge of patent right

Date of cancellation: 20141201

Granted publication date: 20110126

Pledgee: Bank of Communications Ltd Beijing Zhongguancun Park sub branch

Pledgor: Beijing Tianyishangjia New Materials Co., Ltd.

Registration number: 2013990000172

PLDC Enforcement, change and cancellation of contracts on pledge of patent right or utility model
C56 Change in the name or address of the patentee
CP01 Change in the name or title of a patent holder

Address after: 100094 Beijing city Haidian District Town West Xin Li Tun Cun Nan Railway North 500 meters

Patentee after: Beijing Tianyi good new materials Limited by Share Ltd

Address before: 100094 Beijing city Haidian District Town West Xin Li Tun Cun Nan Railway North 500 meters

Patentee before: Beijing Tianyishangjia New Materials Co., Ltd.

CP03 Change of name, title or address

Address after: 102206 Haidian District, Beijing, Shanghai town, xinxinli village, South Railway 500 meters north.

Patentee 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.

Patentee before: Beijing Tianyi good new materials Limited by Share Ltd

CP03 Change of name, title or address
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CX01 Expiry of patent term