CN210113547U

CN210113547U - Clutch facing chatter test bench for automobile

Info

Publication number: CN210113547U
Application number: CN201920721989.3U
Authority: CN
Inventors: 雷海瑞; 朱鹏飞; 胡晓洪
Original assignee: Jietong Friction Material (kunshan) Co Ltd
Current assignee: Jietong Friction Material (kunshan) Co Ltd
Priority date: 2019-05-20
Filing date: 2019-05-20
Publication date: 2020-02-25
Anticipated expiration: 2029-05-20

Abstract

The utility model discloses a clutch facing chatter test bench for automobiles, which comprises a base frame, a power unit and a test unit; the power unit comprises a motor; the test unit comprises a clutch assembly, a separating mechanism, a speed sensor, a damping loader and a damping torsion bar; the clutch assembly includes: the flywheel is connected with the motor spindle; a pressure plate mounted on the flywheel and coaxially arranged with the flywheel; and a driven plate disposed between the flywheel and the pressure plate; the driven disc is connected with the damping torsion bar through a spline shaft; the separating mechanism is connected with the clutch assembly through a separating bearing; the damping loader is arranged on the spline shaft, and the damping torsion bar is fixedly arranged on the base frame; the speed sensor is arranged on the spline shaft. The utility model effectively shortens the test period and shortens the new product opening period; the cost of the test is saved; the method has the advantages of no need of professional personnel, high automation degree and easy operation, and fills the gap of the clutch face vibration test.

Description

Clutch facing chatter test bench for automobile

Technical Field

The utility model relates to a clutch facing test rack that quivers for car belongs to auto-parts technical field.

Background

With the rapid development of automobile industry in China, the automobile part industry is also continuously promoted, and the requirement on quality is higher and higher; customer demands for vehicle comfort are also increasing. The performance of quivering of separation and reunion dough sheet directly influences the shake performance of whole car start, therefore the research and development of clutch dough sheet quivering test bench can effectively help research and development personnel to the optimization of dough sheet prescription, promotes the performance of quivering of product to customer's the experience of driving has been promoted. At present, the main approach for detecting patch vibration in China is loading test. However, the loading test for the vibration performance of the clutch facing is high in cost and long in time consumption, needs professional testers, and can cause misjudgment due to vibration caused by other mechanisms of the test vehicle.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model discloses a motor is the power supply, realizes the variable speed function through converter control to the clutch makes the mechanism of test single for the test unit, can get rid of the quiver that arouses because other mechanisms of car. The test period is short, the cost is low, and no professional tester is needed.

The utility model discloses a first purpose provides a clutch facing test rack that quivers for car for to clutch facing test that quivers, include: the testing device comprises a base frame, and a power unit and a testing unit which are arranged on the base frame; the power unit comprises a motor; the test unit comprises a clutch component, a separating mechanism, a speed sensor, a damping loader and a damping torsion bar;

the clutch assembly includes: the flywheel is connected with a main shaft of the motor; the pressure plate is arranged on the flywheel and is coaxial with the flywheel; the driven disc is arranged between the flywheel and the pressure plate and is connected with the damping torsion bar through a spline shaft; the separating mechanism is connected with the clutch assembly through a separating bearing; the damping loader is arranged on the spline shaft, and the damping torsion bar is fixedly arranged on the base frame; the speed sensor is arranged on the spline shaft.

Furthermore, the separating mechanism comprises a separating shifting fork and a cylinder connected with the separating shifting fork; the separation shifting fork is abutted against the separation bearing. For controlling the disengagement and engagement of the clutch.

Further, the pressing force of the clutch is half of that of a conventional clutch.

Further, the power unit also comprises a frequency converter connected with the motor. Different rotating speeds are realized through the frequency converter, and the rotating speed of the automobile during starting is simulated.

Further, the flywheel is keyed to the power unit.

Furthermore, the damping torsion bar is made of alloy high-carbon steel materials, and the torsional oscillation frequency is 8-12 HZ. Consistent with the natural frequency of an automobile engine.

Further, clutch facing quiver test rack for car still include cooling device and temperature acquisition device, cooling device is used for carrying out the temperature cooling to the clutch subassembly, temperature acquisition device inlay and establish in flywheel and the pressure disk for gather the temperature value of clutch subassembly.

Further, the cooling device comprises a fan and an air pipe.

Furthermore, the damping loader comprises a damping disc and an eddy current loader connected with the damping disc, the damping disc and the spline shaft are coaxially arranged on the spline shaft, and the eddy current loader is arranged on the base frame. The vibration phenomenon is amplified by controlling the damping with different sizes.

Furthermore, the flywheel and the pressure plate are made of the same material. The error of the test result can be reduced by adopting the same material for preparation.

The utility model has the advantages that:

the invention realizes the vibration test of the clutch facing in a laboratory by the composition of a motor, a clutch assembly, a separating mechanism, a data acquisition system, an industrial personal computer, an electrical system and other mechanisms, and has the following remarkable effects: the test period is effectively shortened, and the new product opening period is shortened; the cost of the test is saved; the method has the advantages of no need of professional personnel, high automation degree and easy operation, and fills the gap of the clutch face vibration test.

Drawings

FIG. 1 is a schematic structural view of a clutch facing chatter test rack for an automobile according to the present invention;

fig. 2 is a schematic structural diagram of the clutch assembly of the present invention.

The device comprises a power unit 1, a power unit 2, a clutch assembly 201, a flywheel 202, a driven plate 203, a pressure plate 204, a release bearing 3, a release mechanism 301, a release fork 302, a cylinder 4, a speed sensor 5, a damping plate 6, an eddy current loader 7 and a damping torsion bar.

Detailed Description

The present invention is further described with reference to the following drawings and specific embodiments so that those skilled in the art can better understand the present invention and can implement the present invention, but the embodiments are not to be construed as limiting the present invention.

Example 1:

as shown in fig. 1, the utility model discloses a clutch facing test rack that quivers for car for to clutch facing test that quivers, include: the testing device comprises a base frame, a power unit 1 and a testing unit, wherein the power unit 1 and the testing unit are arranged on the base frame; the power unit 1 includes a motor; the test unit comprises a clutch assembly 2, a separating mechanism 3, a speed sensor 4, damping loaders (5 and 6) and a damping torsion bar 7;

as shown in fig. 2, the clutch assembly 2 includes: the flywheel 201, the flywheel 201 is connected with main shaft key of the electrical machinery; the pressure plate 203 is arranged on the flywheel 201, and the pressure plate 203 is arranged coaxially with the flywheel 201; and a driven disc 202, wherein the driven disc 202 is arranged between the flywheel 201 and the pressure disc 203, and the driven disc 202 is connected with the damping torsion bar 7 through a spline shaft; the release mechanism 3 is connected with the clutch component 2 through a release bearing 204; the damping loader (5, 6) comprises a damping disc 5 and an eddy current loader 6 connected with the damping disc 5, the damping disc 5 and the spline shaft are coaxially arranged on the spline shaft, and the eddy current loader 6 is arranged on the base frame and is used for amplifying the vibration phenomenon by controlling different damping sizes; the damping torsion bar 7 is fixedly arranged on the base frame; the speed sensor 4 is provided on the spline shaft.

The packing force of the clutch of the utility model is half of that of the conventional clutch.

As shown in fig. 2, the detaching mechanism 3 includes a detaching fork 301 and a cylinder 302 connected to the detaching fork 301; the release fork 301 abuts against the release bearing 204. For controlling the disengagement and engagement of the clutch.

The utility model discloses in, the power pack still includes the converter that links to each other with the motor. Different rotating speeds are realized through the frequency converter, and the rotating speed of the automobile during starting is simulated.

The damping torsion bar of the utility model is made of alloy high-carbon steel material, and the torsional oscillation frequency is 8-12 HZ. Consistent with the natural frequency of an automobile engine.

The utility model discloses a clutch facing shakes test bench for car still includes cooling device and temperature acquisition device, and cooling device includes fan and tuber pipe. The cooling device is used for cooling the temperature of the clutch assembly, and the temperature acquisition device is embedded in the flywheel and the pressure plate and used for acquiring the temperature value of the clutch assembly.

The utility model discloses a flywheel with the pressure disk adopt the same material preparation to obtain. The error of the test result can be reduced by adopting the same material for preparation.

The utility model discloses a theory of operation: the motor is controlled by the frequency converter, the motor is used as a power source to transmit torque to the clutch at different rotating speeds, the separation and the connection of the clutch are realized by pushing the separation shifting fork through the control cylinder, and the torsional data is transmitted to the data acquirer by the speed sensor arranged on the spline shaft retainer in the connection process of the clutch. The driven plate is arranged on a spline shaft connected with the damping torsion bar to transmit torque to the torsion bar, one end of the torsion bar is fixed, so that the torsion bar is twisted by the transmitted torque, the torsion bar is swung because the clutch and the pressure plate are not completely engaged, the clutch cannot completely transmit the torque to the torsion bar, the torsion bar is swung, the torsion bar stops at a certain angle to stop the torsion swing if the clutch face plate cannot generate vibration along with the complete contact of the driven plate, the pressure plate and the flywheel, and the torsion swing of the torsion bar cannot stop if the clutch face plate generates vibration, and the damping loader needs to be opened to amplify the collected signals.

The test bench controls all parts through an electric control system, adopts the joint control of the PLC, the frequency converter, the industrial personal computer and the cooling system, carries out automatic test of variable speed and variable temperature according to the requirements of a test program, sets the functions of test joint separation time, test times, temperature upper limit and the like, and the PLC automatically controls the output frequency of the frequency converter according to the test program so as to achieve different rotating speeds of the motor. The PLC automatically controls the separation system according to the acquired data to realize the separation and the connection of the clutch, automatically starts the cooling device when the temperature exceeds a set value according to the data conversion acquired by the data acquisition module, and stops the cooling device to wait until the temperature is within a limit value to continue the operation. The computer stores the measured data into the computer through the data acquisition module, and the measured data is presented in the form of a dynamic chart through configuration software.

The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. Equivalent substitutes or changes made by the technical personnel in the technical field on the basis of the utility model are all within the protection scope of the utility model. The protection scope of the present invention is subject to the claims.

Claims

1. The utility model provides a clutch facing chatter test bench for car for carry out the chatter test to the clutch facing, its characterized in that includes: the testing device comprises a base frame, and a power unit and a testing unit which are arranged on the base frame; the power unit comprises a motor; the test unit comprises a clutch component, a separating mechanism, a speed sensor, a damping loader and a damping torsion bar;

2. The clutch face chatter test stand for an automobile according to claim 1, wherein said release mechanism includes a release fork and a cylinder connected to said release fork; the separation shifting fork is abutted against the separation bearing.

3. The clutch face chatter test stand for an automotive vehicle of claim 1, wherein said power unit further comprises a frequency converter connected to said motor.

4. The clutch face chatter test stand of claim 1, wherein said flywheel is keyed to said power unit.

5. The clutch face chatter test stand of claim 1, wherein said damping torsion bar is made of an alloy high carbon steel material, and a torsional oscillation frequency is 8-12 HZ.

6. The clutch face chatter test bench for the automobile of claim 1, further comprising a cooling device for cooling the clutch assembly and a temperature acquisition device embedded in the flywheel and the pressure plate for acquiring a temperature value of the clutch assembly.

7. The clutch face chatter test stand for an automobile of claim 6, wherein said cooling means comprises a fan and an air duct.

8. The clutch face chatter test bed according to claim 1, wherein said damper loader comprises a damper disc and an eddy current loader connected to said damper disc, said damper disc being disposed on said spline shaft coaxially therewith, said eddy current loader being disposed on said base frame.

9. The clutch face chatter test stand of claim 1, wherein said flywheel and said pressure plate are made of the same material.