KR19990032684U - Durability Tester of Auto Tensioner Diaphragm - Google Patents

Abstract

The present invention allows the durability of the auto tensioner diaphragm to be tested under the same conditions as the actual vehicle, thereby reducing the development time of the auto tensioner diaphragm applied to the actual vehicle, and increasing the reliability of the measurement. The present invention relates to an apparatus for testing the durability of a fram, the present invention is connected to the air service unit 10 for providing pneumatic, the pressure regulator 20 is connected to the air service unit 10 to adjust the pressure of the pneumatic, and the pneumatic 3-2 way solenoid valve 30 to regulate the supply and short circuit of the jig, jig 50 for fixing the diaphragm 40 in the same manner as the actual vehicle, and the diaphragm 40 of the same temperature as the actual vehicle A heater chamber 60 for providing heat, a timer 70 and a counter 80 for adjusting the operating time of the 3-2 way solenoid valve 30 and counting the number of times of operation; It consists of a controller 90 for controlling the air pressure of the air service unit 10 and the pressure regulator 20 and the operation of the 3-2 way solenoid valve 30 and the temperature of the heater chamber 60.

Description

Durability Tester of Auto Tensioner Diaphragm

The present invention relates to an endurance testing device for an auto tensioner diaphragm for a vehicle, and in particular, it is possible to test the durability of the auto tensioner diaphragm under the same conditions as a real vehicle, thereby reducing the development period of the auto tensioner diaphragm applied to a real vehicle. It is related with the durability test apparatus of the auto tensioner diaphragm which makes it possible to raise the reliability of a measurement.

In general, a vehicle is provided with an engine to obtain driving force of the vehicle, and a crank shaft and a cam shaft are connected with a timing belt so as to accurately cycle the engine.

At this time, since the tension of the timing belt should not be loosened, an auto tensioner is installed so that the tension of the timing belt can be automatically adjusted. Done.

When the diaphragm is torn or cracked, the tension of the timing belt increases, and accordingly, an error in the cycle stroke occurs, which causes a problem in that the upper part of the valve and the piston hit.

However, in the related art, since there is no equipment for measuring the durability of the diaphragm, it is applied to a real vehicle and tested by driving a real vehicle, so that the development period is delayed when developing a new vehicle, and it is difficult to calculate accurate test data. There was a problem.

Therefore, the present invention has been made to solve the above-mentioned problems, by fixing only the diaphragm of the auto-tensioner, by providing the same temperature and pressure as in the actual vehicle, it is possible to test the durability of the diaphragm, The aim is to provide a durability tester for auto-tensioner diaphragms that can obtain accurate data and shorten the development time of new cars.

1 is a schematic configuration diagram showing a test apparatus of the present invention.

Explanation of symbols on the main parts of the drawings

10; Air service unit 20; Fresh Regulator

30; 3-2 way solenoid valve 40; Diaphragm

50; Jig 60; Heater chamber

70; Timer 80; counter

90; Controller

In order to achieve the above object, the present invention provides an air service unit for providing air pressure, a pressure regulator connected to the air service unit to adjust the pressure of the air pressure, and a 3-2 way solenoid for adjusting the supply and short circuit of the air pressure. A valve, a jig for fixing the diaphragm as in a real vehicle, a heater chamber for providing heat to the diaphragm at the same temperature as a real vehicle, and an operation time of the 3-2 way solenoid valve can be adjusted and the number of times of operation is adjusted. A timer and a counter for counting, and a controller for controlling the air pressure of the air service unit and the pressure regulator, the operation of the 3-2 way solenoid valve and the temperature of the heater chamber.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIG. 1, the present invention provides an air service unit 10 for providing pneumatic pressure, and installs and installs a pressure regulator 20 connected to the air service unit 10. Allows you to adjust the pressure of the pneumatic pressure supplied from the

In addition, the air service unit 10 is provided with a 3-2 way solenoid valve 30 for adjusting the supply and short circuit of the pneumatic, the 3-2 way solenoid valve 30 is the diaphragm 40 as in the actual vehicle ) Is connected to a jig 50 to fix the pressure to the diaphragm 40 through the jig 50.

At this time, the jig 50 is installed in the heater chamber 60 that provides the diaphragm 40 with heat of the same temperature as the actual vehicle.

The 3-2 way solenoid valve 30 may be provided with a timer 70 and a counter 80 to count the opening and closing time and the number of times of operation of the 3-2 way solenoid valve 30.

In addition, the air service unit 10, the pressure regulator 20, and the heater chamber 60 may be connected to the controller 90 to be controlled by the controller 90.

Looking at the operating state of the present invention configured as described above are as follows.

The diaphragm 40 is fixed to the jig 50, and the controller 90 is operated to maintain a constant temperature of the heater chamber 60.

The controller 90 provides a constant pressure of pneumatic pressure from the air service unit 10 to the 3-2 way solenoid valve 30 through the pressure regulator 20.

As described above, the 3-2 way solenoid valve 30 supplied with air pressure continuously repeats the operation of spraying and stopping air pressure on the diaphragm 40 by the operation of the timer 70.

The operation as described above is determined to be guaranteed when the diaphragm 40 has no abnormality such that it is checked at the counter 80 and passes over a predetermined number of times.

As described above, the present invention provides a durability test device for the auto tensioner diaphragm so as to fix only the diaphragm of the auto tensioner, and provide the same temperature and pressure as in a real vehicle to test the durability of the diaphragm. By doing so, accurate data can be obtained, and it is a very useful design that can shorten the development period of a new car.

Claims (1)

An air service unit that provides pneumatic pressure, a pressure regulator connected to the air service unit to adjust the pressure of the pneumatic pressure, a 3-2 way solenoid valve to regulate the supply and short circuit of the pneumatic pressure, A jig for fixing the ram, a heater chamber for providing heat to the diaphragm at the same temperature as the actual vehicle, a timer and counter for adjusting the operation time of the 3-2 way solenoid valve and counting the number of times of operation, and the air Durability tester for auto-tensioner diaphragm consisting of a controller that controls the pneumatic pressure of the service unit and the pressure regulator, the operation of the 3-2 way solenoid valve and the temperature of the heater chamber.