CN108827764A - A kind of brake block hardness tester - Google Patents
A kind of brake block hardness tester Download PDFInfo
- Publication number
- CN108827764A CN108827764A CN201810870906.7A CN201810870906A CN108827764A CN 108827764 A CN108827764 A CN 108827764A CN 201810870906 A CN201810870906 A CN 201810870906A CN 108827764 A CN108827764 A CN 108827764A
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- China
- Prior art keywords
- screw rod
- block
- jig
- hole
- sliding block
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/04—Chucks
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/40—Investigating hardness or rebound hardness
- G01N3/42—Investigating hardness or rebound hardness by performing impressions under a steady load by indentors, e.g. sphere, pyramid
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
This application provides a kind of brake block hardness testers,Including mounting rack,The hardness leeb instrument that can be moved up and down being mounted on the mounting rack,The pressure head is used to push against brake block downwards in test,The hardness tester further includes the positioning device for positioning the brake block,The positioning device includes jig,First pushes against device and the second abutting device,It includes the first positioning column being fixed on the jig that described first, which pushes against device,,The first rotating bar being rotatably arranged in around an axis on first positioning column,The second rotating bar being rotatably arranged in around an axis in first rotating bar,It includes the second positioning column being fixed on the jig that described second, which pushes against device,,The third rotating bar being rotatably arranged in around an axis on second positioning column,The 4th rotating bar being rotatably arranged in around an axis in the third rotating bar.
Description
Technical field
This application involves brake block hardness testers.
Background technique
In the prior art, brake block is detected, and during detection, for the position of mode brake block
It moves, needs that first brake block is fixed in jig.In the fixation procedure of brake block, brake block can be slided, and make to fix
Journey becomes difficult.
Summary of the invention
The application technical problems to be solved are to provide a kind of brake block hardness tester.
In order to solve the above-mentioned technical problem, this application provides a kind of brake block hardness tester, the hardness tests
The hardness leeb instrument that can be moved up and down that machine includes mounting rack, is mounted on the mounting rack, is mounted on the installation
The pressure head that can be moved up and down on frame, the pressure head are used to push against brake block, the hardness test downwards in test
Machine further includes the positioning device for positioning the brake block, the positioning device include jig, first push against device and
Second pushes against device, described first push against device include the first positioning column being fixed on the jig, can around an axis
The first rotating bar for being rotatably arranged on first positioning column is rotatably arranged in described first turn around an axis
The second rotating bar in lever, the second abutting device includes the second positioning column being fixed on the jig, around one
Third rotating bar that axis is rotatably arranged on second positioning column, be rotatably arranged in around an axis it is described
The 4th rotating bar in third rotating bar, the described first abutting device further include the first torsional spring and the second torsional spring, and described the
One torsional spring is used to play first rotating bar twisting resistance, and second torsional spring is used to play second rotating bar
To twisting resistance；The second abutting device further includes third torsional spring and the 4th torsional spring, and the third torsional spring is used for described
Third rotating bar play twisting resistance, the 4th torsional spring is for playing twisting resistance to the 4th rotating bar.
Preferably, the jig offers cross one another extended the first slot along the x axis and along the y axis
The second extended slot is provided with the first screw rod in first slot, the second screw rod, institute is provided in second slot
The first screw rod stated is extended along the x axis, and second screw rod is extended along the y axis, first screw rod
First end be rotatably coupled with the jig, the second end of first screw rod and the jig can be rotated
Connection, and it is fixed with one first runner, the first sliding block and the second sliding block are provided on first screw rod, described first is sliding
Block is mutually threadedly coupled with the second sliding block with first screw rod, and first sliding block and second sliding block are located at institute
In the first slot stated, when the first screw rod rotation, first sliding block and the second sliding block are along first screw rod
It moves in the opposite direction, the first block is provided on first sliding block, is provided with second gear on second sliding block
Block；The first end of second screw rod is rotatably coupled with the jig, the second end of second screw rod
It is rotatably connected with the jig, and is fixed with one second runner, third sliding block and are provided on second screw rod
Four-slider, the third sliding block are mutually threadedly coupled with Four-slider with second screw rod, and the third sliding block with
The Four-slider is located in second slot, when the second screw rod rotation, the third sliding block and the 4th
Sliding block moves in the opposite direction along second screw rod, is provided with third block on the third sliding block, and described
Fourth gear block is provided on Four-slider.
Preferably, the jig is also provided with first through hole, and the first through hole is extended along the x axis and wears
The left and right end of the jig is crossed, the first through hole connects with first slot, the both ends of first screw rod
Portion is set in the first through hole and can rotate relative to the first through hole, it is logical that the jig is additionally provided with second
Hole, second through-hole extend through the front and rear sides of the jig along the y axis, second through-hole with it is described
The second slot connect, the both ends of second screw rod be set to second through-hole and can be relatively described second lead to
Hole rotation.
Preferably, it is respectively fixed with the first latch segment and the second latch segment at left and right sides of the jig, described
One latch segment and the second latch segment are located at the both ends of the first through hole, the both ends difference of first screw rod
Rotate and connect with the first latch segment and the second latch segment, the front and rear sides of the jig be respectively fixed with third latch segment and
4th latch segment, the third latch segment and the 4th latch segment are located at the both ends of second through-hole, described
The both ends of second screw rod rotate and connect with third latch segment and the 4th latch segment respectively.
Preferably, it is also respectively provided with the first gasket and the second gasket on first sliding block and the second sliding block, it is described
The first sliding block and the second sliding block be located in first slot, first gasket and the second gasket are located at described first
The upside of slot, first block are located at the side close to first latch segment of the first gasket, the second gear
Piece is located at the side close to second latch segment of the second gasket, and the height of first block is greater than described first
The height of gasket, the height of second block are greater than the height of second gasket.
Preferably, be additionally provided with the first mounting hole and the second mounting hole on the jig, first mounting hole with
The first through hole is connected, and second mounting hole is connected with second through-hole, first mounting hole
In the first positioning knob is installed, first positioning knob includes the first positioning screw, first positioning screw
End can push against first screw rod, and the second positioning knob is equipped in second mounting hole, and described second is fixed
Position knob includes the second positioning screw, and the end of second positioning screw can push against second screw rod.
Preferably, the hardness tester further includes slide track component, and the slide track component includes bottom plate, is arranged in institute
The first sliding rail being parallel to each other on the bottom plate stated and the second sliding rail are arranged between first sliding rail and the second sliding rail
And the third screw rod being parallel to each other with first sliding rail and the second sliding rail, the first end of the third screw rod and one are consolidated
Reservation rotates connection, and the other end of the third screw rod is driven by one first driving motor, the fixing seat and institute
The first driving motor stated is fixed on the bottom plate, and the slide track component further includes mounting plate, the mounting plate
Lower surface is equipped with multiple sliding blocks, and multiple sliding blocks are located on first sliding rail and the second sliding rail and can be along described
The first sliding rail and the sliding of the second sliding rail, the lower surface of the mounting plate be additionally provided with one and be set in the third screw rod
Movable block, the movable block are connect with the third screw flight, and the jig is fixed on the mounting plate.
A kind of brake block hardness tester of the application is provided with first and pushes against device and the second abutting device, can be right
Brake block is pushed against in advance, slide brake block will not on jig.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of hardness tester.
Fig. 2 is the structural schematic diagram of brake block clamp system.
Fig. 3 is the partial structure diagram of Fig. 1.
Fig. 4 is the structural schematic diagram of jig.
Fig. 5 is the structural schematic diagram of brake block clamp system installation on the slide rail.
Fig. 6 is the structural schematic diagram of slide track component.
Wherein：1, jig；100, brake block；11, the first slot；12, the second slot；13, the second through-hole；14, first through hole；
15, the first mounting hole；16, the second mounting hole；
22, the first screw rod；231, the first sliding block；232, the second sliding block；241, the first gasket；242, the second gasket；251,
First block；252, the second block；261, the first latch segment；262, the second latch segment；27, the first runner；28, the first positioning rotation
Button；
32, the second screw rod；331, third sliding block；332, Four-slider；341, third gasket；342, the 4th gasket；351,
Third block；352, fourth gear block；361, third latch segment；362, the 4th latch segment；37, the second runner；38, the second positioning rotation
Button；
41, the first rotating bar；42；Second rotating bar；43, the first positioning column；
51, third rotating bar；52, the 4th rotating bar；53, the second positioning column；
61, bottom plate；621, the first sliding rail；622, the second sliding rail；63, fixing seat；64, third screw rod；65, sliding block；66, pacify
Loading board；67, the first driving motor；
7, mounting rack；8, hardness leeb instrument；9, pressure head.
Specific embodiment
The application is described further in the following with reference to the drawings and specific embodiments, so that those skilled in the art can be with
It more fully understands the application and can be practiced, but illustrated embodiment is not as the restriction to the application.
As shown, this application provides a kind of brake block hardness tester, including clamp system, the clamp system
Including jig 1, the jig 1 offers cross one another the first extended slot 11 along the x axis and prolongs along the y axis
The second slot 12 of setting is stretched, the first screw rod 22 is provided in first slot 11, is provided with second in second slot 12
Screw rod 32, first screw rod 22 are extended along the x axis, and second screw rod 32 is extended along the y axis, institute
The first end for the first screw rod 22 stated is rotatably coupled with the jig 1, the second end of first screw rod 22
It is rotatably connected with the jig 1, and is fixed with one first runner 27, be provided with the first sliding block on first screw rod 22
231 and second sliding block 232, first sliding block 231 be threadedly coupled with the second sliding block 232 with 22 phase of the first screw rod,
And first sliding block 231 is located in first slot 11 with second sliding block 232, when first screw rod 22
When rotation, first sliding block 231 and the second sliding block 232 move in the opposite direction along first screw rod 22, described
The first sliding block 231 on be provided with the first block 251, be provided with the second block 252 on second sliding block 232；Described
The first end of second screw rod 32 is rotatably coupled with the jig 1, the second end of second screw rod 32 and institute
The jig 1 stated is rotatably connected, and is fixed with one second runner 37, is provided with third sliding block 331 on second screw rod 32
With Four-slider 332, the third sliding block 331 is threadedly coupled with Four-slider 332 with 32 phase of the second screw rod, and institute
The third sliding block 331 and the Four-slider 332 stated are located in second slot 12, when second screw rod 32 rotates
When, the third sliding block 331 and Four-slider 332 move in the opposite direction along second screw rod 32, and described
It is provided with third block 351 on three sliding blocks 331, is provided with fourth gear block 352 on the Four-slider 332.The jig 1
It is also provided with first through hole 14, the first through hole 14 is extended and passes through along the x axis the left and right of the jig 1
End, the first through hole 14 connect with first slot 11, and the both ends of first screw rod 22 are set to described
It can rotate in first through hole 14 and relative to the first through hole 14.The jig 1 is additionally provided with the second through-hole 13, described
The second through-hole 13 extend through the front and rear sides of the jig 1 along the y axis, second through-hole 13 with it is described
Second slot 12 connects, the both ends of second screw rod 32 be set to second through-hole 13 and can relatively described in the
The rotation of two through-holes 13.The left and right sides of the jig 1 is respectively fixed with the first latch segment 261 and the second latch segment 262, described
The first latch segment 261 and the second latch segment 262 be located at the both ends of the first through hole 14, first screw rod
22 both ends rotate and connect with the first latch segment 261 and the second latch segment 262 respectively.The front and rear sides of the jig 1
It is respectively fixed with third latch segment 361 and the 4th latch segment 362, the third latch segment 361 and the 4th latch segment 362 difference
Positioned at the both ends of second through-hole 13, the both ends of second screw rod 32 respectively with third latch segment 361 and
Four latch segments 362 rotate connection.The first gasket 241 is also respectively provided on first sliding block 231 and the second sliding block 232
With the second gasket 242, first sliding block 231 and the second sliding block 232 are located in first slot 11, first pad
Piece 241 and the second gasket 242 are located at the upside of first slot 11.First block 251 is located at the first gasket 241
Close to the side of first latch segment 261, the second flap is located at locking close to described second for the second gasket 242
The side of tight block 262, the height of first block 251 are greater than the height of first gasket 241, the second gear
The height of block 252 is greater than the height of second gasket 242.
Be additionally provided with the first mounting hole 15 and the second mounting hole 16 on the jig 1, first mounting hole 15 with
The first through hole 14 is connected, and second mounting hole 16 is connected with second through-hole 13, and described first
First positioning knob 28 is installed in mounting hole 15, first positioning knob 28 includes the first positioning screw, and described the
The end of one positioning screw can push against first screw rod 22, and the second positioning rotation is equipped in second mounting hole 16
Button 38, second positioning knob 38 include the second positioning screw, and the end of second positioning screw can push against institute
The second screw rod 32 stated.
The clamp system further includes the first abutting device and second pushes against device, and the first abutting device includes
The first positioning column 43 for being fixed on the jig 1 is rotatably arranged on first positioning column 43 around an axis
The first rotating bar 41, the second rotating bar 42 for being rotatably arranged in around an axis in first rotating bar 41.
The described second abutting device includes the second positioning column 53 being fixed on the jig 1, can turn around an axis
The third rotating bar 51 that is arranged on second positioning column 53 dynamicly is rotatably arranged in the third around an axis
The 4th rotating bar 52 in rotating bar 51.
The first abutting device further includes the first torsional spring and the second torsional spring, and first torsional spring is used for described
First rotating bar 41 plays twisting resistance, and second torsional spring is for playing twisting resistance to second rotating bar 42.
The second abutting device further includes third torsional spring and the 4th torsional spring, and the third torsional spring is used for described
Third rotating bar 51 plays twisting resistance, and the 4th torsional spring is for playing twisting resistance to the 4th rotating bar 52.
The clamp system further includes slide track component, and the slide track component includes bottom plate 61, the bottom is arranged in
First sliding rail 621 and the second sliding rail is arranged in the first sliding rail 621 being parallel to each other and the second sliding rail 622 on plate 61
Third screw rod 64 that is between 622 and being parallel to each other with first sliding rail 621 and the second sliding rail 622, the third spiral shell
The first end of bar 64 rotates with a fixing seat 63 and connect, and the other end of the third screw rod 64 is by one first driving electricity
Machine 67 drives, and the fixing seat 63 and first driving motor 67 are fixed on the bottom plate 61, the sliding rail
Component further includes mounting plate 66, and the lower surface of the mounting plate 66 is equipped with multiple sliding blocks 65, and multiple described sliding block 65
In can slide on first sliding rail 621 and the second sliding rail 622 and along first sliding rail 621 and the second sliding rail 622,
The lower surface of the mounting plate 66 is additionally provided with a movable block (not shown) for being set in the third screw rod 64, described
Movable block is threadedly coupled with the third screw rod 64, and the jig 1 is fixed on the mounting plate.
The hardness tester further includes that mounting rack 7, the Richter scale that can be moved up and down being mounted on the mounting rack 7 are hard
The pressure head 9 that can be moved up and down spending instrument 8, being mounted on the mounting rack, the pressure head 9 are used to support downwards in test
Tight brake block 100.
A kind of working principle of 100 clamp system of brake block described herein is as follows：
First driving motor 67 drives third screw rod 64 to rotate, and moves movable block along third screw rod 64, to drive cunning
Block is slided along the first sliding rail 621 and the second sliding rail 622, to drive the jig 1 being mounted on mounting plate 66 along the first sliding rail 621
It is slided with the second sliding rail 622, jig 1 is moved to suitable position.Brake block 100 is placed on jig 1, the first runner is adjusted
27 and second runner 37, four sliding blocks are slided into first position, brake block 100 is placed on 1 upper surface of jig, at this point,
One gasket 241, the second gasket 242, third gasket 341 and the 4th gasket 342 are located at the downside of the brake block 100.First
The rotating bar of abutting device and the second abutting device pushes against the side of the brake block 100 under the action of torsional spring.Adjust the
One runner 27 and the second runner 37 keep sliding block mobile towards the direction of brake block 100, until the first block 251, the second block
252, third block 351 and fourth gear block 352 push against the side of brake block 100 respectively.Then 28 He of the first positioning knob is tightened
Second positioning knob 38 prevents the first screw rod 22 and the second screw rod 32 from rotating.First driving motor 67 drives third spiral shell
Bar 64 rotates round about, and jig 1 is made to be moved to test position, at this point, hardness leeb instrument 8 is located at the brake block 100
Surface, pressure head 9 moves down, and pushes against brake block 100 downwards, and hardness leeb instrument 8 moves down, test brake block 100
Hardness.
After the completion of the test of brake block 100, pressure head 9 and hardness leeb instrument 8 are moved up.By the first positioning knob 28 and
Two positioning knobs 38 are unscrewed, and the first screw rod 22 and the second screw rod 32 is enable to rotate.The first runner 27 and the second runner 37 are rotated,
Make the first block 251, the second block 252, third block 351 and fourth gear block 352 respectively away from the side of the brake block 100
Then face takes out brake block 100.100 clamp system of brake block of the application, can clamp brake block 100 of different shapes.
Under the driving of the first driving motor 67, jig is moved to the position for facilitating taking-up.
Embodiment described above is only the preferred embodiment lifted to absolutely prove the application, the protection model of the application
It encloses without being limited thereto.Those skilled in the art made equivalent substitute or transformation on the basis of the application, in the application
Protection scope within.The protection scope of the application is subject to claims.
Claims (7)
1. a kind of brake block hardness tester, which is characterized in that the hardness tester include mounting rack, be mounted on it is described
The hardness leeb instrument that can be moved up and down on mounting rack, the pressure head that can be moved up and down being mounted on the mounting rack,
The pressure head is used to push against downwards brake block in test, and the hardness tester further includes for positioning the brake
The positioning device of piece, the positioning device include jig, the first abutting device and the second abutting device, and described first pushes against
Device includes the first positioning column being fixed on the jig, is rotatably arranged in first positioning column around an axis
On the first rotating bar, the second rotating bar for being rotatably arranged in around an axis in first rotating bar, described the
Two abutting devices include the second positioning column being fixed on the jig, around an axis are rotatably arranged in described second
Third rotating bar on positioning column, the 4th rotating bar being rotatably arranged in around an axis in the third rotating bar, institute
The the first abutting device stated further includes the first torsional spring and the second torsional spring, and first torsional spring is used for first rotating bar
Twisting resistance is played, second torsional spring is for playing twisting resistance to second rotating bar；Described second pushes against device
It further include third torsional spring and the 4th torsional spring, the third torsional spring is described for playing twisting resistance to the third rotating bar
The 4th torsional spring for playing twisting resistance to the 4th rotating bar.
2. a kind of brake block hardness tester as described in claim 1, which is characterized in that the jig offers mutual friendship
The first extended along the x axis slot of fork and the second slot being extended along the y axis are provided in first slot
First screw rod is provided with the second screw rod in second slot, and first screw rod is extended along the x axis, described
Second screw rod is extended along the y axis, and first end and the jig of first screw rod are rotatably coupled, institute
The second end for the first screw rod stated is rotatably connected with the jig, and is fixed with one first runner, first spiral shell
The first sliding block and the second sliding block are provided on bar, first sliding block connects with the second sliding block and the first screw rod phase screw thread
It connects, and first sliding block and second sliding block are located in first slot, when the first screw rod rotation,
First sliding block and the second sliding block moves in the opposite direction along first screw rod, is arranged on first sliding block
There is the first block, is provided with the second block on second sliding block；The first end of second screw rod is controlled with described
Tool is rotatably coupled, and the second end and the jig of second screw rod are rotatably connected, and are fixed with one second
Runner, is provided with third sliding block and Four-slider on second screw rod, the third sliding block and Four-slider with it is described
The second screw rod be mutually threadedly coupled, and the third sliding block and the Four-slider are located in second slot, work as institute
When the second screw rod rotation stated, the third sliding block and Four-slider move in the opposite direction along second screw rod,
It is provided with third block on the third sliding block, is provided with fourth gear block on the Four-slider.
3. a kind of brake block hardness tester as claimed in claim 2, which is characterized in that the jig is also provided with first
Through-hole, the first through hole along the x axis be extended and pass through the jig left and right end, the first through hole with
First slot connects, the both ends of first screw rod be set in the first through hole and can relatively described in
First through hole rotation, the jig is additionally provided with the second through-hole, and second through-hole extends through institute along the y axis
The front and rear sides for the jig stated, second through-hole connect with second slot, the both ends of second screw rod
It can rotate set on second through-hole and relative to second through-hole.
4. a kind of brake block hardness tester as claimed in claim 3, which is characterized in that the left and right sides of the jig point
It is not fixed with the first latch segment and the second latch segment, first latch segment and the second latch segment are located at described first
The both ends at the both ends of through-hole, first screw rod rotate and connect with the first latch segment and the second latch segment respectively, institute
The front and rear sides for the jig stated are respectively fixed with third latch segment and the 4th latch segment, the third latch segment and the 4th locking
Block is located at the both ends of second through-hole, the both ends of second screw rod respectively with third latch segment and the 4th
Latch segment rotates connection.
5. a kind of brake block hardness tester as claimed in claim 4, which is characterized in that first sliding block and second is slided
The first gasket and the second gasket are also respectively provided on block, first sliding block and the second sliding block are located at first slot
Interior, first gasket and the second gasket is located at the upside of first slot, and first block is located at the first gasket
The side close to first latch segment, the second flap is located at close second latch segment of the second gasket
Side, the height of first block is greater than the height of first gasket, and the height of second block is greater than
The height of second gasket.
6. a kind of brake block hardness tester as claimed in claim 5, which is characterized in that be additionally provided with the on the jig
One mounting hole and the second mounting hole, first mounting hole are connected with the first through hole, second mounting hole
It is connected with second through-hole, the first positioning knob, the first positioning rotation is installed in first mounting hole
Button includes the first positioning screw, and the end of first positioning screw can push against first screw rod, and described second
Second positioning knob is installed, second positioning knob includes the second positioning screw, second positioning in mounting hole
The end of screw rod can push against second screw rod.
7. a kind of brake block hardness tester as claimed in claim 6, which is characterized in that the hardness tester further includes
Slide track component, the slide track component includes bottom plate, the first sliding rail and second being parallel to each other that is arranged on the bottom plate
Sliding rail, be arranged between first sliding rail and the second sliding rail and be parallel to each other with first sliding rail and the second sliding rail
Third screw rod, the first end of the third screw rod rotates with a fixing seat to be connect, the third screw rod it is another
End is driven by one first driving motor, and the fixing seat and first driving motor are fixed on the bottom plate,
The slide track component further includes mounting plate, and the lower surface of the mounting plate is equipped with multiple sliding blocks, multiple sliding blocks
It can slide on first sliding rail and the second sliding rail and along first sliding rail and the second sliding rail, the installation
The lower surface of plate is additionally provided with a movable block for being set in the third screw rod, the movable block and the third screw rod
It is threadedly coupled, the jig is fixed on the mounting plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810870906.7A CN108827764A (en) | 2018-08-02 | 2018-08-02 | A kind of brake block hardness tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810870906.7A CN108827764A (en) | 2018-08-02 | 2018-08-02 | A kind of brake block hardness tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108827764A true CN108827764A (en) | 2018-11-16 |
Family
ID=64152506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810870906.7A Withdrawn CN108827764A (en) | 2018-08-02 | 2018-08-02 | A kind of brake block hardness tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108827764A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112014251A (en) * | 2020-09-03 | 2020-12-01 | 安徽博耐克摩擦材料有限公司 | Compression-resistant hardness detection device for composite lubrication type drum brake pad |
-
2018
- 2018-08-02 CN CN201810870906.7A patent/CN108827764A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112014251A (en) * | 2020-09-03 | 2020-12-01 | 安徽博耐克摩擦材料有限公司 | Compression-resistant hardness detection device for composite lubrication type drum brake pad |
| CN112014251B (en) * | 2020-09-03 | 2024-04-02 | 安徽博耐克摩擦材料有限公司 | Compression hardness detection device of compound lubrication type drum brake pad |
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Application publication date: 20181116 |
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| WW01 | Invention patent application withdrawn after publication |