CN212134378U - Disc brake pad shear test device - Google Patents
Disc brake pad shear test device Download PDFInfo
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- CN212134378U CN212134378U CN202020378756.0U CN202020378756U CN212134378U CN 212134378 U CN212134378 U CN 212134378U CN 202020378756 U CN202020378756 U CN 202020378756U CN 212134378 U CN212134378 U CN 212134378U
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- brake pad
- steel back
- disc brake
- pressure sensor
- test device
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Abstract
The utility model discloses a disc brake block shear test device, include: a bearing seat; the steel back seat is movably connected with the bearing seat and used for placing an object to be measured; the lateral force loading mechanism can move along the bearing seat to apply lateral force on the object to be tested; the tension and pressure sensor is movably arranged on the bearing seat, can be abutted against the lateral force loading mechanism and is used for displaying the magnitude of the lateral force; and the shearing cutter assembly is positioned above the bearing seat, is connected with the tension and compression tester and is used for downwards shearing and separating the brake piece and the steel back of the object to be tested. The utility model has universality and can adapt to disc brake pads with different specifications and models; the steel back seat is of an adjustable structure, meets the requirements of different steel back sizes, and is convenient to adjust; the testing efficiency is high, and the testing cost is low; the structural design of the bearing seat realizes that axial movement is generated through the movement of the loading head wheel and the lateral loading screw rod, and a test force value is transmitted to the tension pressure sensor.
Description
Technical Field
The utility model belongs to the performance test device field of disc brake block especially relates to a disc brake block shear test device.
Background
At present, a shear test of the bonding strength of a brake pad of a disc brake is an important performance item for checking the bonding strength of the brake pad and an important part for guaranteeing good brake performance, no shearing tool which is effectively applicable and can be universally used is available on the market, so that the shear test is difficult, or the test data deviation is caused because the design of a clamp cannot meet the shearing requirement.
SUMMERY OF THE UTILITY MODEL
In order to overcome the not enough of prior art, the utility model provides a commonality is high, satisfies the shearing requirement, has suitable efficient shear means, and efficiency of software testing is high, disc brake block shear test device with low costs of testing.
The utility model provides a technical scheme that its technical problem adopted is: a disc brake pad shear test device, comprising:
a bearing seat;
the steel back seat is movably connected with the bearing seat and used for placing an object to be measured;
the lateral force loading mechanism can move along the bearing seat to apply lateral force on the object to be tested;
the tension and pressure sensor is movably arranged on the bearing seat, can be abutted against the lateral force loading mechanism and is used for displaying the magnitude of the lateral force;
and the shearing cutter assembly is positioned above the bearing seat, is connected with the tension and compression tester and is used for downwards shearing and separating the brake piece and the steel back of the object to be tested.
Further, the bearing seat comprises a transverse bottom plate, a vertical supporting plate vertically connected with the transverse bottom plate, a guide part arranged on the transverse bottom plate, and a mounting groove used for arranging the pull pressure sensor, wherein a track is formed on the guide part, and the mounting groove is communicated with the track.
Furthermore, the lateral force loading mechanism comprises a lateral loading screw rod extending into the track and a loading head wheel connected with the lateral loading screw rod, and when the loading head wheel is rotated, the lateral loading screw rod pushes the tension pressure sensor along the track to move towards the direction of the object to be measured.
Furthermore, the width and the height of the mounting groove are equivalent to the width and the thickness of the pull pressure sensor, and the length of the mounting groove is greater than that of the pull pressure sensor.
Furthermore, a through groove is formed in the vertical supporting plate, the steel back seat can move along the through groove, and when the steel back seat moves to a position where the width of the steel back seat protruding out of the vertical supporting plate is slightly smaller than the width of the steel back, the fixing piece penetrates through the side face of the vertical supporting plate and then abuts against the steel back seat. The steel back of the body seat makes the steel back of the body seat satisfy the steel back of the body requirement of different thickness with the cooperation structure that leads to the groove, and it is convenient to adjust, and the mounting then prevents that the steel back of the body seat from removing in the test process, and the structure is more firm.
Before the test, the steel back seat is adjusted to a standard required position, the steel back seat is fixed through a fixing piece, the brake piece is loaded through a loading head wheel and a lateral loading screw rod, and a loading force value is displayed through a tension and compression sensor to meet the test requirement; the pulling pressure sensor uniformly distributes force values on the brake sheet through the pressing sheet, so that uniform lateral force loading is realized.
Furthermore, the quantity of mounting is two, and symmetric distribution is in vertical support plate both sides.
Furthermore, the device also comprises a pressing sheet arranged between the object to be measured and the tension and pressure sensor, and the pressing sheet is used for dispersing the lateral force applied by the lateral force loading mechanism.
Furthermore, the radian of the top surface of the pressing sheet is the same as that of the top surface of the brake pad.
Furthermore, the shearing knife assembly comprises a shearing knife holder, a shaft pin and a shearing knife, wherein the shaft pin transversely penetrates through the shearing knife holder and the shearing knife to movably connect the shearing knife holder and the shearing knife. The shearing tool holder enables the shearing tool assembly to be matched with the interface of the tension and compression testing machine to be installed, and replacement of shearing tools with different shearing surfaces is facilitated.
Furthermore, the shearing knife and the shearing knife seat are in transition fit connection. The transition fit connection realizes the self-adjustment of the shearing knife by taking the shaft pin as the center, and the flexibility is higher; the movement of the shearing knife is eliminated, the shearing knife is adjusted according to the cambered surface of the brake piece to be attached to the brake piece, and the shearing stress is uniform.
The utility model discloses bear the seat and have special lateral force loading mechanism and draw the pressure sensor mounting groove, realize that the lateral loading screw rod carries out the loading of lateral force through the mounting groove, conduct the loading force and draw pressure sensor, draw pressure sensor to remove in the mounting groove, conduct the preforming to pressure, lateral loading screw rod and preforming and draw pressure sensor plane contact, the convenient dismouting in drawing pressure sensor uses, conveniently realizes the loading of lateral force.
The utility model discloses be applied to the shear test of disc brake pads such as automobile brake pad, motorcycle and electric motor car, conveniently realize that disc brake pad connects the installation, and carry out the yawing force loading through loading first wheel and side direction loading screw rod, through drawing compression testing machine, realize carrying out shear test to the braking piece of disc brake pad, realize quick shear test, be a novel disc brake pad shear test device.
The utility model provides a technical scheme that its technical problem adopted is: firstly, designing a shearing knife, a shearing knife seat and a shaft pin which meet the shearing test requirements of the disc brake pad according to the characteristics of the disc brake pad, designing a shearing knife which meets the test requirements of the disc brake pad according to the characteristics of an arc at the upper end of the brake pad of the disc brake pad, wherein the shearing knife has a self-adjusting function and is attached to the arc of the brake pad; according to the characteristics of the disc brake block, the thicknesses of the steel backs are different, so that the steel back seat capable of being adjusted according to the size of the steel back is designed, and the steel back seat is fastened and fixed through a fixing piece. The lateral force loading mechanism realizes the requirements of force loading, force value display and the like by installing a loading head wheel, a lateral loading screw rod, a tension pressure sensor and the like on a bearing seat; the combined design of the thread rail of the bearing seat and the special groove realizes the loading of the tension pressure sensor through the lateral loading screw rod, the loading, the unloading and the convenient disassembly and assembly of the tension pressure sensor are facilitated, the pressing sheet is used between the tension pressure sensor and the brake sheet to realize the uniform distribution of the loading force on the brake sheet, and the accurate force value of the shear test is realized. The position of the shearing knife is fixed, the shearing position is fixed, the disc brake block lateral force loading and the position of the fixing device are adjusted to shear, and the effects of quick installation and quick shearing are achieved.
The utility model has the advantages that: 1) the brake pad has universality and can adapt to disc brake pads of different specifications and models; 2) the loaded lateral force value is displayed and adjusted through the tension and pressure sensor, and the test requirement is met; 3) the lateral force transmitted by the tension pressure sensor is loaded on the pressing sheet to realize the purpose of uniformly loading and distributing the lateral force on the braking sheet; 4) the steel back seat is of an adjustable structure, meets the requirements of different steel back sizes, is convenient to adjust, and can be fastened and fixed through the fixing piece, so that the steel back can be effectively prevented from shifting; 5) the testing efficiency is high, and the testing cost is reduced; 6) the positioning installation of the shearing knives with different sizes is conveniently realized through the structural design of the shearing knife seat, the laminating of the cambered surface of the shearing knife and the cambered surface of the braking piece is realized through the circular motion of the shearing knife, and the requirement of shearing tiny angle adjustment in the shearing process is conveniently realized; 7) the structural design of the bearing seat realizes that the axial movement is generated through the movement of the loading head wheel and the lateral loading screw rod, the test force value is transmitted to the tension and pressure sensor, the tension and pressure sensor linearly moves in the track of the tension and pressure sensor, and the purpose of transmitting the tension and pressure sensor to the tabletting is realized; 8) through the installation of shearing cutter unit and brake block on the brake block mount pad, realize through a clamping, realize cuting fast, and the device satisfies the test requirement of different steel backing sizes through the adjustment, consequently has extensive commonality.
Drawings
Fig. 1 is a first perspective view of the present invention.
Fig. 2 is a second perspective view of the present invention.
Fig. 3 is a side view of the present invention with the shear blade assembly removed.
Fig. 4 is a side view of the shearing blade assembly of the present invention.
Fig. 5 is a perspective view of the present invention with the shear blade assembly removed.
Fig. 6 is a top view of the present invention with the shear blade assembly removed.
Fig. 7 is a perspective view of the load bearing seat of the present invention.
Fig. 8 is a perspective view of the tension/pressure sensor of the present invention.
Fig. 9 is a perspective view of the lateral loading screw of the present invention.
Detailed Description
In order to make the technical solution of the present invention better understood, the following figures in the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.
As shown in fig. 1 to 9, a disc brake pad shear test device includes a bearing seat 1, a steel back seat 2 for placing an object 3 to be tested, a lateral force loading mechanism 4 for applying a lateral force on the object 3 to be tested, a tension and pressure sensor 5 for displaying the magnitude of the lateral force, and a shear knife assembly 6 located above the bearing seat 1 and connected to the tension and pressure test machine, wherein the shear knife assembly 6 is used for downwardly shearing and separating a brake pad 31 and a steel back 32 of the object 3 to be tested.
As shown in fig. 7, the carrier 1 includes a horizontal bottom plate 11, a vertical support plate 12 vertically connected to the edge of the horizontal bottom plate 11, a guide portion 13 vertically extending upward from the horizontal bottom plate 11, and a mounting groove 14 disposed on the guide portion 13 for mounting the tension/pressure sensor 5; a spacing distance exists between the guide part 13 and the vertical support plate 12, a track 15 is formed on the guide part 13, and the track 15 extends along the length direction of the guide part 13 and is vertical to the vertical support plate 12; a part of the track 15 is of a relatively closed structure in the length direction, a part of the track close to the vertical supporting plate 12 is communicated with the outside to form a mounting groove 14, and the tension and pressure sensor 5 is placed in the mounting groove 14;
as shown in fig. 8, in cooperation with the structure of the tension and pressure sensor 5, the height of the installation groove 14 is equivalent to the thickness of the tension and pressure sensor 5, the width of the installation groove 14 is equivalent to the width of the tension and pressure sensor 5, the length of the installation groove 14 is greater than the length of the tension and pressure sensor 5, and the tension and pressure sensor 5 can move in a translation manner along the installation groove 14.
The lateral force loading mechanism 4 comprises a lateral loading screw rod 41 extending into the track 15 and a loading head wheel 42 connected with the end of the lateral loading screw rod 41, the outer wall of the lateral loading screw rod 41 is provided with external threads, when the loading head wheel 42 is rotated by applying an external force, the adjusting bolt 41 is translated along the track 15 to the direction close to the vertical support plate 12, so that the adjusting bolt can move towards the direction of the object 3 to be detected by resisting the pulling pressure sensor 5, further, the lateral force along the axial direction of the track 15 is applied on the object 3 to be detected, and at the moment, the pulling pressure sensor 5 can display the magnitude of the lateral force.
In order to uniformly disperse the lateral force applied by the lateral force loading mechanism 4 on the object 3 to be measured, a pressing sheet 7 is arranged between a brake block 31 of the object 3 to be measured and the tension pressure sensor 5, the area of the pressure 7 is equivalent to that of the brake block 31, and the top surface of the pressure 7 has the same radian as that of the top surface of the brake block 31.
The vertical support plate 12 is provided with a through groove 121 penetrating through the thickness direction of the vertical support plate 12, the height of the through groove 121 is equal to the height of the steel back seat 2, the width of the steel back seat 2 is greater than the width of the through groove 121, so that the steel back seat 2 horizontally moves along the through groove 121, the steel back seat 2 can be adjusted to protrude out of the vertical support plate 12 in the direction close to the bearing seat 1, and when the steel back seat 2 protrudes out of the vertical support plate 12 and is adjusted to be slightly smaller than the width of the steel back 32, the steel back seat 2 needs to be fixed;
set up respectively in the both sides of vertical support plate 12 and form through-hole 211, two mountings 21 pass the back from the through-hole 211 of vertical support plate 12 side respectively and offset with the lateral wall of steel back seat 2, in this embodiment, through-hole 211 has the internal thread, and mountings 21 are the bolt that has the external screw thread to realize the fixed connection of steel back seat 2 and vertical support plate 12, in order to improve the steadiness of connecting, two mountings 21 symmetric distribution.
The shearing cutter assembly 6 comprises a shearing cutter seat 61 connected with the tension and compression tester, a shearing cutter 63 and a shaft pin 62 which transversely penetrates through the shearing cutter seat 61 and the shearing cutter 63 to movably connect the shearing cutter seat 61 and the shearing cutter 63; the shearing knife 63 and the shearing knife holder 61 are in transition fit connection, that is, the shearing knife 63 can deflect circumferentially around the shaft pin 62 under the action of certain external force; the shearing surface of the shearing knife 63 has the same radian with the top surface of the brake pad 31.
The working process of the utility model is that according to the arc radian size of the object to be measured, namely the brake pad 31 of the brake pad, the shearing knife 63 with corresponding arc size is selected, the shearing knife 63 is installed on the shearing knife holder 61, and the shearing knife component 6 is installed on the tension and compression testing machine; adjusting the width of the steel back seat 2 protruding out of the vertical supporting plate 12 according to the thickness of the steel back 32 of the object 3 to be tested, meeting the requirement of marking test, locking the fixing piece 21, and placing the steel back 32 of the object 3 to be tested on the steel back seat 2; placing the tension and pressure sensor 5 in the installation groove 14 of the guide part 13, applying external force to rotate the loading head wheel 42 for loading, moving the lateral loading screw rod 41 forwards along the track 15 until the lateral loading screw rod abuts against the tension and pressure sensor 5 to continue moving, and placing the pressing sheet 7 between the brake sheet 31 of the object 3 to be tested and the tension and pressure sensor 5 when the tension and pressure sensor 5 is in quick contact with the object 3 to be tested; continuously applying external force through the loading head wheel 42, gradually increasing to a specified force value according to a lateral force loading value required by the test, reading the force value through the tension and pressure sensor 5 in the loading process, and when the tension and pressure sensor 5 displays that the lateral force reaches a rated force value; and adjusting the position of the bearing seat 1 to enable the matching position of the arc surface of the brake pad 31 and the arc surface of the shearing knife 63 to meet the standard requirement, starting a tension and compression tester, shearing the brake pad 31 by vertically downwards after the shearing knife 63 is over against the shearing knife 63, and obtaining the bonding strength value between the brake pad 31 and the steel back 32 by the tension and compression tester when the brake pad 31 is separated from the steel back 32.
The above detailed description is provided for illustrative purposes, and is not intended to limit the present invention, and any modifications and variations of the present invention are within the spirit and scope of the following claims.
Claims (10)
1. The utility model provides a disk brake block shear test device which characterized in that includes:
a bearing seat (1);
the steel back seat (2) is movably connected with the bearing seat (1) and is used for placing an object to be measured (3);
the lateral force loading mechanism (4) can move along the bearing seat (1) to apply lateral force on the object (3) to be measured;
the pulling pressure sensor (5) is movably arranged on the bearing seat (1), can be abutted against the lateral force loading mechanism (4) and is used for displaying the magnitude of the lateral force;
and the shearing knife assembly (6) is positioned above the bearing seat (1), is connected with the tension and compression tester and is used for downwards shearing and separating a brake pad (31) and a steel back (32) of the object to be tested (3).
2. The disc brake pad shear test device of claim 1, wherein: bear seat (1) including horizontal bottom plate (11), vertical support plate (12) that link to each other perpendicularly with horizontal bottom plate (11), locate guide part (13) on horizontal bottom plate (11), and be used for setting up mounting groove (14) that draw pressure sensor (5), form track (15) on guide part (13), mounting groove (14) are linked together with track (15).
3. The disc brake pad shear test device of claim 2, wherein: the lateral force loading mechanism (4) comprises a lateral loading screw rod (41) extending into the track (15) and a loading head wheel (42) connected with the lateral loading screw rod (41), and when the loading head wheel (42) is rotated, the lateral loading screw rod (41) pushes the pressure sensor (5) to move towards the direction of the object to be measured (3) along the track (15).
4. The disc brake pad shear test device of claim 2, wherein: the width and the height of the mounting groove (14) are equivalent to the width and the thickness of the tension and pressure sensor (5), and the length of the mounting groove (14) is larger than that of the tension and pressure sensor (5).
5. The disc brake pad shear test device of claim 2, wherein: a through groove (121) is formed in the vertical supporting plate (12), the steel back seat (2) can move along the through groove (121), and when the steel back seat (2) moves to a position where the width of the steel back seat protruding out of the vertical supporting plate (12) is slightly smaller than the width of the steel back (32), the fixing piece (21) penetrates through the side face of the vertical supporting plate (12) and then abuts against the steel back seat (2).
6. The disc brake pad shear test device of claim 5, wherein: the number of the fixing pieces (21) is two, and the fixing pieces are symmetrically distributed on two sides of the vertical supporting plate (12).
7. The disc brake pad shear test device of claim 1, wherein: the device also comprises a pressing sheet (7) arranged between the object to be detected (3) and the tension and pressure sensor (5), wherein the pressing sheet (7) is used for dispersing the lateral force applied by the lateral force loading mechanism (4).
8. The disc brake pad shear test device of claim 7, wherein: the radian of the top surface of the pressing sheet (7) is the same as that of the top surface of the brake pad (31).
9. The disc brake pad shear test device of claim 1, wherein: the shearing knife assembly (6) comprises a shearing knife holder (61), a shaft pin (62) and a shearing knife (63), wherein the shaft pin (62) transversely penetrates through the shearing knife holder (61) and the shearing knife (63) to movably connect the shearing knife holder with the shearing knife (63).
10. The disc brake pad shear test device of claim 8, wherein: the shearing knife (63) is in transition fit connection with the shearing knife seat (61).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020378756.0U CN212134378U (en) | 2020-03-23 | 2020-03-23 | Disc brake pad shear test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020378756.0U CN212134378U (en) | 2020-03-23 | 2020-03-23 | Disc brake pad shear test device |
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| Publication Number | Publication Date |
|---|---|
| CN212134378U true CN212134378U (en) | 2020-12-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020378756.0U Active CN212134378U (en) | 2020-03-23 | 2020-03-23 | Disc brake pad shear test device |
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| CN (1) | CN212134378U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114279866A (en) * | 2021-12-01 | 2022-04-05 | 中汽研汽车检验中心（天津）有限公司 | Test equipment for testing shear strength of automobile disc brake lining |
-
2020
- 2020-03-23 CN CN202020378756.0U patent/CN212134378U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114279866A (en) * | 2021-12-01 | 2022-04-05 | 中汽研汽车检验中心（天津）有限公司 | Test equipment for testing shear strength of automobile disc brake lining |
| CN114279866B (en) * | 2021-12-01 | 2023-08-25 | 中汽研汽车检验中心（天津）有限公司 | Test equipment for testing shearing strength of automobile disc brake lining |
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