CN107576613A - Watt back of the body and friction piece longitudinal direction cohesion test fixture of a kind of powder metallurgy brake brake shoe - Google Patents
Watt back of the body and friction piece longitudinal direction cohesion test fixture of a kind of powder metallurgy brake brake shoe Download PDFInfo
- Publication number
- CN107576613A CN107576613A CN201710938767.2A CN201710938767A CN107576613A CN 107576613 A CN107576613 A CN 107576613A CN 201710938767 A CN201710938767 A CN 201710938767A CN 107576613 A CN107576613 A CN 107576613A
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- friction piece
- powder metallurgy
- test fixture
- longitudinal direction
- brake shoe
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- 238000012360 testing method Methods 0.000 title claims abstract description 32
- 238000004663 powder metallurgy Methods 0.000 title claims abstract description 23
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 239000000853 adhesive Substances 0.000 abstract description 7
- 230000001070 adhesive effect Effects 0.000 abstract description 7
- 238000009434 installation Methods 0.000 abstract description 7
- 238000003466 welding Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 2
- 238000003825 pressing Methods 0.000 abstract description 2
- 238000005245 sintering Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 241000357293 Leptobrama muelleri Species 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003137 locomotive effect Effects 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Abstract
The invention provides a kind of watt back of the body of powder metallurgy brake brake shoe and friction piece longitudinal direction cohesion test fixture, including bottom plate, riser, clamping assembly, locking member, pressure head；Two pieces of risers being parallel to each other are vertically installed with the bottom plate, the clamping assembly is arranged between two pieces of risers, and the locking member is arranged in clamping assembly, and the pressure head is arranged on frock upper end as pressure conduction device.Test fixture structure of the present invention and product installation positioning method are special, clamp structure is Combination Welding structure, pressing aid is tightly adjustable supplemented by fixture fixed form, ensure that three faces are parallel after installation product, when the powder metallurgy brake brake shoe back of the body starts to depart from friction piece adhesive surface, friction piece, which starts to move downward, drives roller to rotate counterclockwise, and reduces friction piece and departs from watt other unlucky active forces, improves the accuracy of test data.
Description
Technical field
The present invention relates to a kind of watt back of the body of powder metallurgy brake brake shoe and friction piece longitudinal direction cohesion test fixture.
Background technology
When brake shoe is railway locomotive and vehicle braking, brake shoe rubbing surface compresses and leans against wheel tread under thrust of braking
The upper important component for producing braking moment.In service braking operation, the brake shoe back of the body subjects huge with friction piece adhesive surface
Active force.Therefore before installation, wheels-locked testing and the test of watt back of the body and friction piece adhesive surface longitudinal force are carried out to brake shoe is
It is very important.Brake shoe experiment is typically after using test fixture, product is connected, and simulation parking brake is carried out to product, is applied
The active force of job requirement, to judge whether product is qualified and reaches predetermined performance indications.
Test fixture is indispensable in properties of product and endurancing, the reasonability and operability of test fixture
It is that can experiment be smoothed out and the whether accurate key factor of result of the test.
The content of the invention
In order to solve the above technical problems, the invention provides a kind of watt back of the body of powder metallurgy brake brake shoe and friction piece longitudinal direction
Cohesion test fixture.
The present invention is achieved by the following technical programs.
Watt back of the body and friction piece longitudinal direction cohesion test fixture of a kind of powder metallurgy brake brake shoe provided by the invention, including
Bottom plate, riser, clamping assembly, locking member, pressure head；Two pieces of risers being parallel to each other, the dress are vertically installed with the bottom plate
Clip assembly is arranged between two pieces of risers, and the locking member is arranged in clamping assembly, and the pressure head is done installed in frock upper end
For pressure conduction device.
It is not less than the width of frock between two pieces of risers in the size of a determining deviation and spacing.
The clamping assembly includes arc plate, support member and roll sleeve, and the both sides of the arc plate, the both ends of support member are respectively solid
It is connected on the adjacent surface of two pieces of risers, the roll sleeve is two and coordinated by screw rod and nut between two pieces of risers
The different height opening position of upper end.
Clamping hole is provided with the arc plate, lockhole is provided with the support member.
The clamping hole is arranged on the center of clamping hole.
The support member is arranged at the lower edge of clamping hole.
The lockhole is arranged on the upper surface center of clamping hole, and the locking member is arranged in lockhole.
Bar hole and adjustment hole are also machined with the riser, adjustment hole is arranged on one end of bar hole, and screw rod is arranged on
Regulating part through adjustment hole is installed in bar hole, on screw rod.
The beneficial effects of the present invention are：Test fixture structure and product installation positioning method are special, and clamp structure is group
Welding structure is closed, pressing aid is tightly adjustable supplemented by fixture fixed form, ensures that three faces are parallel after installing product, when powder metallurgy brake
When Wa Wa is carried on the back and friction piece adhesive surface starts to depart from, friction piece, which starts to move downward, drives roller to rotate counterclockwise, and reduces and rubs
Rub body departs from watt other unlucky active forces, improves the accuracy of test data.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the roll sleeve assembling structure schematic diagram of the present invention；
Fig. 3 is the arc plate structure schematic diagram of the present invention；
Fig. 4 is powder metallurgy brake brake shoe structure schematic diagram；
In figure：1- bottom plates, 2- risers, 21- bar holes, 22- adjustment holes, 3- clamping assemblies, 31- clamping holes, 32- arc plates,
33- support members, 331- lockholes, 4- locking members, 5- pressure heads, 6- screw rods, 7- nuts, 8- roll sleeves, 9- regulating parts.
Embodiment
Be described further below technical scheme, but claimed scope be not limited to it is described.
Watt back of the body and friction piece longitudinal direction cohesion test fixture of a kind of powder metallurgy brake brake shoe as shown in Figure 1 and Figure 2, bag
Include bottom plate 1, riser 2, clamping assembly 3, locking member 4, pressure head 5；Two pieces of risers being parallel to each other are vertically installed with the bottom plate 1
2, the clamping assembly 3 is arranged between two pieces of risers 2, and the locking member 4 is arranged in clamping assembly 3, and the pressure head 5 is installed
In frock upper end as pressure conduction device.
It is not less than the width of frock between two pieces of risers 2 in the size of a determining deviation and spacing.
The clamping assembly 3 includes arc plate 32, support member 33 and roll sleeve 8, the both sides of the arc plate 32, the two of support member 33
End is respectively fixed on the adjacent surface of two pieces of risers 2, and the roll sleeve 8 is two and coordinates installation by screw rod 6 and nut 7
The different height opening position of upper end between two pieces of risers 2.
Clamping hole 31 is provided with the arc plate 32, lockhole 331 is provided with the support member 33.
The clamping hole 31 is arranged on the center of clamping hole 31.
The support member 33 is arranged at the lower edge of clamping hole 31.
The lockhole 331 is arranged on the upper surface center of clamping hole 31, and the locking member 4 is arranged in lockhole 331.
Bar hole 21 and adjustment hole 22 are also machined with the riser 2, adjustment hole 22 is arranged on one end of bar hole 21, spiral shell
Bar 6 is arranged in bar hole 21, and the regulating part 9 through adjustment hole 22 is provided with screw rod 6.
The purpose of the present invention is the metallurgical brake brake shoe back of the body a and friction piece c of test powders
A kind of test fixture of adhesive surface longitudinal direction cohesive force.Powder metallurgy brakes brake shoe as shown in figure 4, being by a watt back of the body a, determining
Position pin b and friction piece c, which is bonded, to be formed.First in the alignment pin b press-ins watt back of the body 1, sub-assembly is obtained, then powder metallurgy powder is fallen
Enter to suppress and pressurize and be stripped in model cavity, obtain that friction piece c is made, friction piece is bundled on sub-assembly and passes through high-temperature pressurizing
After sintering, realize that friction piece couples with the sintering of steel back, form powder metallurgy brake brake shoe.
Because powder metallurgy brake brake shoe is formed by high-temperature pressurizing sintering, parameter (temperature, the pressure of each sintering furnace
Deng) control is inconsistent, so must extract a product out from each sintering furnace carries out frictional behaviour experiment and watt back of the body and friction
The cohesion test of body.
For problem above, test fixture graphics of the present invention as shown in Fig. 2 by bottom plate 1, riser 2, arc plate 3, watt pricker 4,
Pressure head 5, screw rod 6, nut 7, roll sleeve 8 and screw 9 form.
Test fixture technical scheme of the present invention is implemented：Riser 2 and arc plate 3 are welded first, ensure two riser bottom surfaces and arc
Plate support section is parallel, then is combined part and is welded with bottom plate 1, ensures that bottom plate bottom surface is parallel with arc plate support section, the arc of arc plate 3
Face is consistent with watt convex surface.Main frame schematic three dimensional views after welding are as shown in Figure 3.
Screw rod 6 is penetrated in main body rack slot and roll sleeve 8, both ends of the surface are twisted nut 7 and positioned, and are screwed into adjustment screw 9.Then
Product is put into test fixture from top to bottom, a watt back of the body watt nose one side is contacted with the supporting surface of arc plate 3, adjusting screw 9, is made a watt back of the body arc
Face completely attaches to the cambered surface of arc plate 3.Watt pricker 4 is inserted in arc plate supporting surface and watt back of the body watt nose, pressure head 5 is buckled on product, angle
Degree is consistent with the friction piece angle after installation, and making pressure head upper surface, to reach three faces parallel with watt carrying on the back watt nose and bottom plate.
After the completion of test fixture and product installation and debugging, fixation, you can tested.Pressure is applied to pressure head 5, works as powder
When the metallurgy brake brake shoe back of the body starts to depart from friction piece adhesive surface, maximum pressure of the record forcing press in course of exerting pressure, i.e.,
For longitudinal cohesive force of the powder metallurgy brake brake shoe back of the body and friction piece adhesive surface.
Claims (8)
1. watt back of the body and friction piece longitudinal direction cohesion test fixture of a kind of powder metallurgy brake brake shoe, including bottom plate (1), riser
(2), clamping assembly (3), locking member (4), pressure head (5), it is characterised in that：Two pieces are vertically installed with the bottom plate (1) mutually
Parallel riser (2), the clamping assembly (3) are arranged between two pieces of risers (2), and the locking member (4) is arranged on clamping group
On part (3), the pressure head (5) is arranged on frock upper end as pressure conduction device.
2. watt back of the body and friction piece longitudinal direction cohesion test fixture of powder metallurgy brake brake shoe as claimed in claim 1, it is special
Sign is：It is not less than the width of frock between two pieces of risers (2) in the size of a determining deviation and spacing.
3. watt back of the body and friction piece longitudinal direction cohesion test fixture of powder metallurgy brake brake shoe as claimed in claim 1, it is special
Sign is：The clamping assembly (3) includes arc plate (32), support member (33) and roll sleeve (8), the both sides of the arc plate (32), branch
The both ends of support member (33) are respectively fixed on the adjacent surface of two pieces of risers (2), and the roll sleeve (8) is two and passes through screw rod
(6) and nut (7) coordinates the different height opening position of the upper end between two pieces of risers (2).
4. watt back of the body and friction piece longitudinal direction cohesion test fixture of powder metallurgy brake brake shoe as claimed in claim 3, it is special
Sign is：Clamping hole (31) is provided with the arc plate (32), lockhole (331) is provided with the support member (33).
5. watt back of the body and friction piece longitudinal direction cohesion test fixture of powder metallurgy brake brake shoe as claimed in claim 4, it is special
Sign is：The clamping hole (31) is arranged on the center of clamping hole (31).
6. watt back of the body and friction piece longitudinal direction cohesion test fixture of powder metallurgy brake brake shoe as claimed in claim 4, it is special
Sign is：The support member (33) is arranged at the lower edge of clamping hole (31).
7. watt back of the body and friction piece longitudinal direction cohesion test fixture of powder metallurgy brake brake shoe as claimed in claim 4, it is special
Sign is：The lockhole (331) is arranged on the upper surface center of clamping hole (31), and the locking member (4) is arranged on lockhole
(331) in.
8. watt back of the body and friction piece longitudinal direction cohesion test fixture of powder metallurgy brake brake shoe as claimed in claim 3, it is special
Sign is：Bar hole (21) and adjustment hole (22) are also machined with the riser (2), adjustment hole (22) is arranged on bar hole (21)
One end, screw rod (6) be arranged on bar hole (21) in, the regulating part (9) through adjustment hole (22) is installed on screw rod (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710938767.2A CN107576613B (en) | 2017-09-30 | 2017-09-30 | Powder metallurgy brake shoe's tile back and friction body longitudinal adhesion test fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710938767.2A CN107576613B (en) | 2017-09-30 | 2017-09-30 | Powder metallurgy brake shoe's tile back and friction body longitudinal adhesion test fixture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107576613A true CN107576613A (en) | 2018-01-12 |
| CN107576613B CN107576613B (en) | 2023-11-14 |
Family
ID=61040332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710938767.2A Active CN107576613B (en) | 2017-09-30 | 2017-09-30 | Powder metallurgy brake shoe's tile back and friction body longitudinal adhesion test fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107576613B (en) |
Citations (11)
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|---|---|---|---|---|
| SU1359726A1 (en) * | 1986-05-26 | 1987-12-15 | Центральный научно-исследовательский институт бумаги | Appliance to breaking machine for determining adhesion of fibrous compounds in separation |
| CN201724863U (en) * | 2010-06-02 | 2011-01-26 | 北京天宜上佳新材料有限公司 | Brake shoe back and friction piece bonding strength test fixture |
| CN202024938U (en) * | 2011-03-02 | 2011-11-02 | 福州新信制动系统有限公司 | Replaceable disc brake pad shearing strength test jig |
| CN102680319A (en) * | 2012-05-23 | 2012-09-19 | 青岛科技大学 | Test fixture for compression shear of symmetric sandwich structure |
| CN202676447U (en) * | 2012-07-27 | 2013-01-16 | 济南试金集团有限公司 | Auxiliary appliance for test on pulling-out force of friction body and back of brake shoe |
| 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 |
| CN103293060A (en) * | 2013-01-05 | 2013-09-11 | 中国航空工业集团公司西安飞机设计研究所 | Compression test device capable of preventing bending failure of loading end |
| CN204495703U (en) * | 2015-03-31 | 2015-07-22 | 中国飞机强度研究所 | A kind of adhesive 90 ° of stripping test clamps |
| CN104963971A (en) * | 2015-06-30 | 2015-10-07 | 贵州新安航空机械有限责任公司 | Powder metallurgy brake shoe structure and machining method thereof |
| CN205691479U (en) * | 2016-06-17 | 2016-11-16 | 湖北飞龙摩擦密封材料股份有限公司 | A kind of bloop drawing force testing device |
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2017
- 2017-09-30 CN CN201710938767.2A patent/CN107576613B/en active Active
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| CN202024938U (en) * | 2011-03-02 | 2011-11-02 | 福州新信制动系统有限公司 | Replaceable disc brake pad shearing strength test jig |
| CN102680319A (en) * | 2012-05-23 | 2012-09-19 | 青岛科技大学 | Test fixture for compression shear of symmetric sandwich structure |
| CN202676447U (en) * | 2012-07-27 | 2013-01-16 | 济南试金集团有限公司 | Auxiliary appliance for test on pulling-out force of friction body and back of brake shoe |
| 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 |
| CN103293060A (en) * | 2013-01-05 | 2013-09-11 | 中国航空工业集团公司西安飞机设计研究所 | Compression test device capable of preventing bending failure of loading end |
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| CN205691479U (en) * | 2016-06-17 | 2016-11-16 | 湖北飞龙摩擦密封材料股份有限公司 | A kind of bloop drawing force testing device |
| CN208297317U (en) * | 2017-09-30 | 2018-12-28 | 贵州新安航空机械有限责任公司 | Watt back and friction piece longitudinal direction cohesion test fixture of powder metallurgy brake brake shoe |
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| Publication number | Publication date |
|---|---|
| CN107576613B (en) | 2023-11-14 |
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