CN113176099A - Method for testing adhesive property of automobile brake lining - Google Patents
Method for testing adhesive property of automobile brake lining Download PDFInfo
- Publication number
- CN113176099A CN113176099A CN202110607034.7A CN202110607034A CN113176099A CN 113176099 A CN113176099 A CN 113176099A CN 202110607034 A CN202110607034 A CN 202110607034A CN 113176099 A CN113176099 A CN 113176099A
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- transverse shaft
- brake lining
- groove
- disc
- brake
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N19/00—Investigating materials by mechanical methods
- G01N19/02—Measuring coefficient of friction between materials
Abstract
The invention discloses a method for detecting the adhesive property of an automobile brake lining, which comprises a test box, wherein the test box is provided with analog and digital signal input and output interfaces, a man-machine interaction interface is designed through Labview software programming, and signals of a sensor are collected to process and calculate the torque of a brake disc and the pressure of a brake caliper, so that the friction coefficient is obtained. The method for testing the adhesion performance of the automobile brake lining provided by the invention can be used for effectively testing the adhesion performance of the automobile brake lining.
Description
Technical Field
The invention relates to a method for testing the adhesive property of an automobile brake lining.
Background
In the use process of an automobile, particularly in rainy days, the phenomenon that an automobile brake lining is adhered to a brake disc can occur, the automobile brake lining and the brake disc are corroded together, so that the noise of 'cracking' can be generated when the automobile starts to run, the automobile brake lining and the brake disc can be torn seriously, the braking performance of the automobile is remarkably reduced, and the adhesion performance of the automobile brake lining can not be simulated by the conventional professional testing equipment.
Disclosure of Invention
The purpose of the invention is as follows: in order to overcome the defects in the prior art, the invention provides the method for testing the adhesion performance of the automobile brake lining, which can effectively test the adhesion performance of the automobile brake lining.
The technical scheme is as follows: in order to achieve the purpose, the technical scheme of the invention is as follows:
the method for detecting the bonding performance of the automobile brake lining comprises a test box, wherein the test box is provided with an analog and digital signal input and output interface, a man-machine interaction interface is designed through Labview software programming, and signals of a sensor are collected to process and calculate the torque of a brake disc and the pressure of a brake caliper, so that the friction coefficient is obtained.
Furthermore, a brake disc and a brake caliper are installed on a platform, the brake disc is driven by a direct current motor respectively, the brake caliper is controlled by a pressurizing device, data from the test box are obtained through a PC (personal computer), and online reading is achieved.
Further, the device for testing the adhesion performance of the automobile brake lining comprises a box body, wherein a temperature adjusting mechanism and a humidity adjusting mechanism are arranged in the box body, a rotating table is arranged at the bottom of the box body, and the rotating table is driven by a first motor to horizontally rotate; a first bracket and a second bracket are oppositely arranged above the rotating table, a second motor is arranged on the first bracket, the second motor drives a first cross shaft to horizontally rotate, and a brake disc fixing mechanism is arranged at the end part of the first cross shaft; an electric push rod is arranged on the second support, the electric push rod pushes the second transverse shaft to horizontally stretch, and the front end of the second transverse shaft is rotatably connected with a third transverse shaft, namely the second transverse shaft is rotatably connected with the third transverse shaft; the front end of the third transverse shaft is provided with a brake lining fixing mechanism; the first, second and third transverse axes are horizontally collinear.
The temperature adjusting mechanism comprises a plurality of heating pipes arranged on two sides of the inner wall of the box body, and the heating pipes are arranged in an up-and-down symmetrical mode by taking the horizontal plane where the first cross shaft is located as a symmetrical plane.
Furthermore, the brake disc fixing mechanism comprises a first fixed disc arranged at the end part of the first transverse shaft, and the vertical first fixed disc is fixedly connected with the end part of the first transverse shaft; the end face of the first transverse shaft is provided with an annular deep groove, the annular deep groove extends along the axial direction of the first transverse shaft, and an adjusting cylinder is connected with the annular deep groove in a threaded manner; the whole adjusting cylinder is hollow cylindrical, and the outer wall of the adjusting cylinder is provided with a conical inclined plane; the outer wall of the adjusting cylinder is provided with a thread structure, and the annular deep groove is also internally provided with a thread structure.
Furthermore, a fixed ring surface is reserved between the first fixed disc and the end surface of the first transverse shaft, and a plurality of lifting grooves are annularly arranged on the fixed ring surface; the bottom of the lifting groove is communicated with the annular deep groove; the lifting groove is internally provided with a lifting block, the bottom end of the lifting end is provided with a lifting inclined plane, and the lifting inclined plane is in contact transmission with the conical inclined plane.
The brake lining fixing mechanism comprises a second fixing disc arranged at the end part of a third transverse shaft, and a detachable mounting block is arranged on the second fixing disc; the back of the installation block is provided with a bolt groove, the second fixing disc is provided with a bolt hole in a through mode, a fixing bolt penetrates through the bolt hole and is in threaded connection with the bolt groove in the back of the installation block, so that the installation block is fixed, a brake lining installation groove is formed in one side, facing the first support, of the installation block, and the shape of the brake lining installation groove corresponds to that of a brake lining.
Furthermore, an adjusting ring is arranged on one side of the adjusting cylinder, which faces the second support, a jack is arranged on the adjusting ring, and a rotating rod is detachably inserted in the jack; the adjusting ring extends out of the end face of the first transverse shaft, and the second fixing disc is provided with an annular groove for accommodating the adjusting ring, so that the brake disc and the brake lining can be mutually pressed.
The end surface of the first transverse shaft is provided with a transmission groove, and the end surface of the third transverse shaft is provided with a transmission block; the transmission block and the transmission groove are both in a cross shape, and when the electric push rod pushes the third transverse shaft to the first transverse shaft, the transmission block and the transmission groove are correspondingly inserted and clamped, so that the first transverse shaft is in transmission connection with the third transverse shaft; when the second motor rotates, the brake disc and the brake lining can be driven to rotate synchronously.
Further, the humidity adjusting mechanism comprises a spray nozzle arranged right above the rotating platform and spray nozzles arranged on two sides of the inner wall of the box body; the spray nozzle and the spray nozzle are both connected with external water supply equipment;
two sides of the inner wall of the box body are provided with annular grooves; the annular groove is internally and correspondingly provided with a rotating block; the power device on the side wall of the box body is rotationally connected with the rotating block; the rotating block is provided with a spraying nozzle in a swinging connection mode, and the rotating block drives the spraying nozzle to swing inside and outside; the plane of the rotating track of the spray nozzle is vertical to the moving direction of the spray nozzle, and the brake disc is positioned in a spraying overlapping area of the spray nozzle and the spray nozzle;
and a temperature sensor and a humidity sensor are arranged in the box body and are in signal connection with external control equipment.
Has the advantages that: the invention has the beneficial effects that: 1) the second motor drives the brake disc and the brake lining to vertically rotate, and the heating pipes are symmetrically arranged up and down, so that the brake disc and the brake lining can be uniformly heated in the heating process, the reliability of the device is improved, and the systematic error of the test is reduced;
2) when the adjusting cylinder rotates, the lifting block is driven to lift in the lifting groove, so that the top of the lifting block abuts against the central hole of the brake disc, and the brake disc is fixed.
Drawings
FIG. 1 is a flow chart of a method for testing the adhesive property of an automobile brake lining;
FIG. 2 is a structural diagram of an automobile brake lining adhesion performance test device;
FIG. 3 is a brake disc construction;
FIG. 4 is a view showing the structure of a first fixing disk;
FIG. 5 is a view showing a structure of an annular deep groove;
FIG. 6 is a view showing the structure of a driving groove;
FIG. 7 is a diagram of a drive block;
FIG. 8 is a view showing the structure of the annular groove;
fig. 9 is a view showing a structure of a turning block.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
As shown in figures 1-9: the method for detecting the bonding performance of the automobile brake lining comprises a test box, wherein the test box is provided with an analog and digital signal input and output interface, a man-machine interaction interface is designed through Labview software programming, and signals of a sensor are collected to process and calculate the torque of a brake disc and the pressure of a brake caliper, so that the friction coefficient is obtained. The brake disc and the brake caliper of the real vehicle are mechanical structural parts, so that the braking action of the brake is simulated really, and the detection data meet the application requirements.
A brake disc and a brake caliper are installed on a platform, the brake disc is driven by a direct current motor respectively, the brake caliper is controlled by a pressurizing device, data from a test box are obtained through a PC (personal computer), and online reading is achieved. Manufacturing a test box, editing control software by using labview to obtain a human-computer interaction interface, and being simple in operation and control; the debonding force of the automobile brake lining is obtained by accurately controlling the torsional moment of the brake disc, and the bonding performance of the automobile brake lining is effectively evaluated. The test platform can also simulate the noise generated when the automobile starts after braking, and is used for deeply researching and developing the driving comfort of the automobile. The test box has certain universality, is provided with analog and digital signal input and output interfaces, and can be used for various engineering control, detection and the like.
The device for testing the bonding performance of the automobile brake lining comprises a box body 1, wherein a temperature adjusting mechanism and a humidity adjusting mechanism are arranged in the box body 1, a rotating table 2 is arranged at the bottom of the box body 1, and the rotating table 2 is driven by a first motor 3 to horizontally rotate; a first bracket 4 and a second bracket 5 are oppositely arranged above the rotating table 2, a second motor 6 is arranged on the first bracket 4, the second motor 6 drives a first transverse shaft 7 to horizontally rotate, and a brake disc fixing mechanism is arranged at the end part of the first transverse shaft 7; an electric push rod 8 is arranged on the second bracket 5, the electric push rod 8 pushes a second transverse shaft 9 to horizontally stretch, and the front end of the second transverse shaft 9 is rotatably connected with a third transverse shaft 10, namely the second transverse shaft 9 is rotatably connected with the third transverse shaft 10; a brake lining fixing mechanism is arranged at the front end of the third transverse shaft 10; the first 7, second 9 and third 10 transverse axes are horizontally collinear. After the brake disc 34 is fixed by the brake disc fixing mechanism and the brake lining 35 is fixed by the brake lining fixing mechanism, the electric push rod 8 presses the brake lining 35 against the brake disc 34, and the second motor 6 drives the brake disc 34 and the brake lining 35 to rotate when being started because the second cross shaft 9 is rotationally connected with the third cross shaft 10.
The temperature adjusting mechanism comprises a plurality of heating pipes 11 arranged on two sides of the inner wall of the box body 1, and the heating pipes 11 are arranged in a vertically symmetrical mode by taking the horizontal plane where the first transverse shaft 7 is located as a symmetrical plane.
The corrosion and adhesion condition of the brake disc 34 and the brake lining 35 in rainy days can be simulated in the box body 1, and the corrosion rate of the brake lining and the brake disc can be accelerated through temperature and humidity regulation. In the heating process of the interior of the box body 1, the first motor 3 drives the rotating table 2 to horizontally rotate, the second motor 6 drives the brake disc 34 and the brake lining 35 to vertically rotate, and the heating pipes 11 are symmetrically arranged up and down, so that the brake disc 34 and the brake lining 35 can be uniformly heated in the heating process, the reliability of the device is improved, and the systematic errors of the test are reduced.
The brake disc fixing mechanism comprises a first fixed disc 12 arranged at the end part of the first transverse shaft 7, and the vertical first fixed disc 12 is fixedly connected with the end part of the first transverse shaft 7; an annular deep groove 13 is formed in the end face of the first transverse shaft 1, the annular deep groove 13 extends along the axial direction of the first transverse shaft 1, and an adjusting cylinder 14 is connected to the inner thread of the annular deep groove 13; the whole adjusting cylinder 14 is hollow cylindrical, and the outer wall of the adjusting cylinder 14 is provided with a conical inclined plane 15; the outer wall of the adjusting cylinder 14 is provided with a thread structure, the annular deep groove 13 is also provided with a thread structure, and the position of the adjusting cylinder 14 in the annular deep groove 13 can be changed by rotating the adjusting cylinder 14.
A fixed ring surface 16 is reserved between the first fixed disc 12 and the end surface of the first transverse shaft 7, and a plurality of lifting grooves 17 are arranged on the fixed ring surface 16 in an annular manner; the bottom of the lifting groove 17 is communicated with the annular deep groove 13; the lifting groove 17 is internally provided with a lifting block 18, the bottom end of the lifting end 18 is provided with a lifting inclined surface 19, and the lifting inclined surface 19 is in contact transmission with the conical inclined surface 15. When the brake disc 34 needs to be fixed, the central hole of the brake disc 34 is placed on the fixed ring surface 16, so that the disc surface on one side of the brake disc 34 is attached to the first fixed disc 12, then the adjusting cylinder 14 is rotated, and when the adjusting cylinder 14 rotates, the lifting block 18 is driven to lift in the lifting groove 17, so that the top of the lifting block 18 is abutted against the central hole of the brake disc 34, and the brake disc 34 is fixed.
The brake lining fixing mechanism comprises a second fixed disc 20 arranged at the end part of a third transverse shaft 10, and a detachable mounting block 21 is arranged on the second fixed disc 20; the back of the mounting block 21 is provided with a bolt groove, the second fixing plate 20 is provided with a bolt hole, a fixing bolt 33 passes through the bolt hole and is in threaded connection with the bolt groove on the back of the mounting block 21 so as to fix the mounting block 21, one side of the mounting block 21 facing the first bracket 4 is provided with a brake lining mounting groove 22, the shape of the brake lining mounting groove 22 corresponds to that of a brake lining 34, and when different brake linings 34 are tested, different mounting blocks 21 need to be replaced.
An adjusting ring 23 is arranged on one side of the adjusting cylinder 14 facing the second bracket 5, an inserting hole 24 is formed in the adjusting ring 23, and a rotating rod 25 is detachably inserted in the inserting hole 24; the adjusting ring 23 projects beyond the end face of the first transverse shaft 7, and the second stationary disk 20 is provided with an annular groove 26 which receives the adjusting ring 23 and ensures that the brake disk 34 and the brake lining 35 can be pressed against one another.
The end surface of the first transverse shaft 7 is provided with a transmission groove 27, and the end surface of the third transverse shaft 10 is provided with a transmission block 28; the transmission block 28 and the transmission groove 27 are both in a cross shape, when the electric push rod 8 pushes the third transverse shaft 10 to the first transverse shaft 7, the transmission block 28 and the transmission groove 27 are correspondingly inserted and clamped, so that the first transverse shaft 7 is in transmission connection with the third transverse shaft 10; the second electric motor 6 rotates to drive the brake disc 34 and the brake lining 35 to rotate synchronously.
The humidity adjusting mechanism comprises a spray nozzle 29 arranged right above the rotating platform 2 and spray nozzles 30 arranged on two sides of the inner wall of the box body 1; the spray nozzle 29 and the spray nozzle 30 are both connected with external water supply equipment.
Two sides of the inner wall of the box body 1 are provided with annular groove 311; the annular groove 311 is internally and correspondingly provided with a rotating block 312; the power device on the side wall of the box body 1 is rotationally connected with the rotating block 312; the rotating block 312 is provided with the spraying nozzle 30 in a swinging connection manner, and the rotating block 312 drives the spraying nozzle 30 to swing inside and outside; the plane of the rotating track of the spray nozzle 29 is vertical to the moving direction of the spray nozzle 30, and the brake disc 34 is positioned in the spraying overlapping area of the spray nozzle 30 and the spray nozzle 29;
be provided with temperature sensor 31 and humidity transducer 32 in the box 1, temperature sensor 31 and humidity transducer 32 and external controlgear signal connection for monitor box 1's humiture, conveniently control the humiture condition in the box 1.
During operation, the brake disc 34 and the brake lining 35 are fixed through the brake disc fixing mechanism and the brake lining fixing mechanism respectively, then the brake lining 35 is pressed against the surface of the brake disc 34 through the electric push rod 8, the first motor 3 drives the rotating table 2 to horizontally rotate, the second motor 6 drives the brake disc 34 and the brake lining 35 to vertically rotate, the brake disc 34 and the brake lining 35 are uniformly heated when the heating pipe 11 is heated, and the brake disc 34 and the brake lining 35 can also be uniformly sprayed when the spray nozzle 29 sprays water.
The foregoing is a preferred embodiment of the present invention, and it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the invention, and such modifications and adaptations are intended to be included within the scope of the invention.
Claims (8)
1. The method for detecting the adhesive property of the automobile brake lining is characterized by comprising the following steps: the test box is provided with analog and digital signal input and output interfaces, a man-machine interaction interface is designed through Labview software programming, signals of the sensor are collected to be processed, and brake disc torque and brake caliper pressure are calculated, so that friction coefficients are obtained.
2. The method for detecting the adhesive property of an automobile brake lining according to claim 1, wherein: a brake disc and a brake caliper are installed on a platform, the brake disc is driven by a direct current motor respectively, the brake caliper is controlled by a pressurizing device, data from a test box are obtained through a PC (personal computer), and online reading is achieved.
3. The method for detecting the adhesive property of an automobile brake lining according to claim 2, wherein: the device for testing the bonding performance of the automobile brake lining comprises a box body (1), wherein a temperature adjusting mechanism and a humidity adjusting mechanism are arranged in the box body (1), a rotating table (2) is arranged at the bottom of the box body (1), and the rotating table (2) is driven by a first motor (3) to horizontally rotate; a first support (4) and a second support (5) are oppositely arranged above the rotating table (2), a second motor (6) is arranged on the first support (4), the second motor (6) drives a first transverse shaft (7) to horizontally rotate, and a brake disc fixing mechanism is arranged at the end part of the first transverse shaft (7); an electric push rod (8) is arranged on the second support (5), the electric push rod (8) pushes a second transverse shaft (9) to horizontally stretch, and the front end of the second transverse shaft (9) is rotatably connected with a third transverse shaft (10), namely the second transverse shaft (9) is rotatably connected with the third transverse shaft (10); the front end of the third transverse shaft (10) is provided with a brake lining fixing mechanism; the first transverse axis (7), the second transverse axis (9) and the third transverse axis (10) are horizontally collinear.
4. The method for detecting the adhesive property of an automobile brake lining according to claim 3, wherein: the temperature adjusting mechanism comprises a plurality of heating pipes (11) arranged on two sides of the inner wall of the box body (1), and the heating pipes (11) are arranged in an up-down symmetrical mode by taking a horizontal plane where the first transverse shaft (7) is located as a symmetrical plane;
the brake disc fixing mechanism comprises a first fixed disc (12) arranged at the end part of the first transverse shaft (7), and the vertical first fixed disc (12) is fixedly connected with the end part of the first transverse shaft (7); an annular deep groove (13) is formed in the end face of the first transverse shaft (1), the annular deep groove (13) extends along the axial direction of the first transverse shaft (1), and an adjusting cylinder (14) is connected to the annular deep groove (13) in a threaded mode; the whole adjusting cylinder (14) is hollow and cylindrical, and a conical inclined plane (15) is arranged on the outer wall of the adjusting cylinder (14); the outer wall of the adjusting cylinder (14) is provided with a thread structure, and the annular deep groove (13) is also internally provided with a thread structure.
5. The method for detecting the adhesive property of an automobile brake lining according to claim 4, wherein: a fixed ring surface (16) is reserved between the first fixed disc (12) and the end surface of the first transverse shaft (7), and a plurality of lifting grooves (17) are arranged on the fixed ring surface (16) in an annular manner; the bottom of the lifting groove (17) is communicated with the annular deep groove (13); a lifting block (18) is arranged in the lifting groove (17), a lifting inclined plane (19) is arranged at the bottom end of the lifting end (18), and the lifting inclined plane (19) is in contact transmission with the conical inclined plane (15);
the brake lining fixing mechanism comprises a second fixed disc (20) arranged at the end part of a third transverse shaft (10), and a detachable mounting block (21) is arranged on the second fixed disc (20); the back of the mounting block (21) is provided with a bolt groove, the second fixing disc (20) is provided with a bolt hole in a penetrating mode, a fixing bolt (33) penetrates through the bolt hole and is in threaded connection with the bolt groove in the back of the mounting block (21) so as to fix the mounting block (21), one side, facing the first support (4), of the mounting block (21) is provided with a brake lining mounting groove (22), and the shape of the brake lining mounting groove (22) corresponds to that of a brake lining (34).
6. The method for detecting the adhesive property of an automobile brake lining according to claim 5, wherein: an adjusting ring (23) is arranged on one side, facing the second support (5), of the adjusting cylinder (14), a jack (24) is arranged on the adjusting ring (23), and a rotating rod (25) is detachably inserted in the jack (24); the adjusting ring (23) extends out of the end face of the first transverse shaft (7), and the second fixed disc (20) is provided with an annular groove (26) for accommodating the adjusting ring (23) so as to ensure that the brake disc (34) and the brake lining (35) can be pressed against each other.
7. The method for detecting the adhesive property of an automobile brake lining according to claim 6, wherein: a transmission groove (27) is formed in the end face of the first transverse shaft (7), and a transmission block (28) is arranged on the end face of the third transverse shaft (10); the transmission block (28) and the transmission groove (27) are both in a cross shape, when the electric push rod (8) pushes the third transverse shaft (10) to the first transverse shaft (7), the transmission block (28) and the transmission groove (27) are correspondingly inserted and clamped, so that the first transverse shaft (7) is in transmission connection with the third transverse shaft (10); when the second motor (6) rotates, the brake disc (34) and the brake lining (35) can be driven to rotate synchronously.
8. The method for detecting the adhesive property of an automobile brake lining according to claim 7, wherein: the humidity adjusting mechanism comprises a spray nozzle (29) arranged right above the rotating platform (2) and spray nozzles (30) arranged on two sides of the inner wall of the box body (1); the spray nozzle (29) and the spray nozzle (30) are both connected with external water supply equipment;
two sides of the inner wall of the box body (1) are provided with annular grooves (311); a rotating block (312) is correspondingly arranged in the annular groove (311); the power device on the side wall of the box body (1) is rotationally connected with the rotating block (312); the rotating block (312) is provided with a spraying nozzle (30) in a swinging connection mode, and the rotating block (312) drives the spraying nozzle (30) to swing inside and outside; the plane of the rotating track of the spray nozzle (29) is vertical to the moving direction of the spray nozzle (30), and the brake disc (34) is positioned in the spraying overlapping area of the spray nozzle (30) and the spray nozzle (29);
a temperature sensor (31) and a humidity sensor (32) are arranged in the box body (1), and the temperature sensor (31) and the humidity sensor (32) are in signal connection with external control equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110607034.7A CN113176099B (en) | 2021-06-01 | 2021-06-01 | Method for testing adhesive property of automobile brake lining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110607034.7A CN113176099B (en) | 2021-06-01 | 2021-06-01 | Method for testing adhesive property of automobile brake lining |
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| CN113176099A true CN113176099A (en) | 2021-07-27 |
| CN113176099B CN113176099B (en) | 2022-11-11 |
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| CN202110607034.7A Active CN113176099B (en) | 2021-06-01 | 2021-06-01 | Method for testing adhesive property of automobile brake lining |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113758724A (en) * | 2021-09-03 | 2021-12-07 | 奇瑞汽车股份有限公司 | Testing method for rust adhesion of friction plate and brake disc |
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| CN113176099B (en) | 2022-11-11 |
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