JPS6156936A - Bench tester of damper rubber - Google Patents

Abstract

PURPOSE:To improve the efficiency of the endurance test, by disengaging the rotary body of a damper under test and a frame with a reciprocating load tester being fixed, imparting static rotary force to damper rubber, engaging the body and frame again, and applying a dynamic reciprocating rotary force. CONSTITUTION:A reciprocating load testing device 18 is stopped, and a rotary body 5 of a damper-under-test attaching device 1 is freely rotated with respect to a frame 6. A static load device 3 is driven, and the rotary body 5 of the damper-under-test attaching device 1 is rotated and energized in one direction. The damper under test 4 is twisted in one direction, and the twisting torque and the angle are measured. The rotary body 5 is fixed to the frame 6 and the reciprocating load testing device 18 is driven. A rotary shaft 7 is slowly reciprocated and rotated. The load torque is measured and the endurance test is conducted. Thus the static spring constant of the damper under test 4 is determined, and the quality of the rubber damper can be confirmed.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a damper rubber used in a durability test of a damper rubber used in a rubber damper device such as a compression type rubber damper device interposed between an output shaft and an output-side transmission shaft of an engine. The present invention relates to bench test equipment.

Conventional technology In the past, a damper device that actually incorporated damper rubber was attached to the output shaft of the engine, and after the power line damper device, inertia equivalent to the vehicle body load was added, and the engine was started and stopped repeatedly. The performance of the damper rubber mentioned above was confirmed.

The problem that the invention aims to solve The above conventional example had the following problems.

That is, (1) engine-driven benches require fuel, which increases costs for large models. (2) When the engine □ is started and stopped continuously, one cycle is limited to about 40 to 45 seconds, so the durability test takes a long time. (3) In order to operate the engine continuously, it is necessary to automatically monitor the safety of each item.
4) O # and O in relation to engine starter
Since the life span is only about 4 to 5 x 10 FF cycles, engine-related durability is limited. 6°, 5.

, □The present invention has been made in consideration of the fact that
The device according to the present invention includes a test damper mounting device, a reciprocating load applying device, and a static load applying device, and the test damper mounting device includes a rotating body that fits and holds the outer circumference of the test damper; Consisting of a rotating shaft that fits and holds the boss part, and a frame that rotatably and detachably supports the rotating body,
In addition, there is a rotating shaft that connects the reciprocating load loading device to the rotating shaft of the test damper mounting device, a frame that supports this rotating shaft, and a rotating shaft that biases the rotating shaft in the reciprocating direction.
W□6. The load applying device is composed of a rotating shaft connected to the rotating body of the test damper mounting device, and a rotating device that statically rotates this rotating shaft. Then, with the reciprocating load loading device fixed, the test damper was uncoupled from the rotary body of the attached device and the frame, and then the static load loading device was driven to attach the damper rubber added to the test damper mounting device. A static rotational force is applied. In addition, by engaging the rotating body and frame of the attached device with the test dieper and then driving the reciprocating load loading device, a dynamic reciprocating rotational force is applied to the damper rubber added to the test damper. Ru.

Example Embodiments of the present invention will be described based on the drawings.

In the figure, 1 is a test specimen mounting device, 2 is a reciprocating load loading device installed on one axial side of this test damper mounting device 1, and 3 is a dead load loading device installed on the other axial side. It is.

The test damper is attached to the mounting rack R1 in a manner similar to that in which the annular test damper 4 to be subjected to the I test is mounted to the output section of the engine.

That is, 5 is a rotating body rotatably supported by a frame 6, and the outer peripheral portion of the damper 4 under test is fitted and held on this rotating body 5.

Further, ta 7 is a rotating shaft which is concentric with the rotating body 5 and rotatably supported by the frame 6, and the test damper 4 which is fitted and held on the rotating body 5 is attached to this rotating shaft 7. The boss portion 8 is fitted and held. The rotating body 5 has a pre-, -) 9 and a port 0, relative to the frame 6.
It can be fixed at 11. .

1. For reciprocating load loading @2, the above sample damper is mounted on a rack.
It consists of a rotating shaft 13 connected to the rotating shaft 7 via a universal joint 12, a frame 14 that supports this, and an arm 15 fixed to the tip of the rotating shaft 13.

, and this arm 15 receives a hydraulic reciprocating load via a ring 4 16 and a rod 17 2. Connected to test device 1.8.

The static load loading device 3 has a rotating shaft 20 connected to the rotating body 5 of the test damper mounting frame @, 1 through a joint 19.
And, this rotating shaft 20. A ram device 21 that rotates in one direction, and a frame 22 that supports this ram device 21.
It consists of The rotating shaft 20 and the ram device 21 are connected by a rack and pinion.

The above-mentioned sample damper stand @1 is housed in a heat/cold box 23 made of a heat insulating wall made of glass wool or the like. This heat/cold box 23 is connected to a temperature raising device and a low temperature device (both not shown) 1, so that the temperature can be set over a range of, for example, -50 to +50°C. .

The operation of the above configuration will be explained.　　.

(1) In the case of a confirmation test for the static spring constant of the sample damper 4, first, the reciprocating load test device 18 is stopped and the rod 17 is fixed in a fixed position. Next is Bolt! 1 is removed to allow the rotating body 6 of the damper damping device 1 under test to freely rotate with respect to the frame 6.゛In this state, the static load applying device 3 is driven to rotationally bias the rotating body 5 of the test damper mounting device 1 in one direction.

In this way, the boss portion is twisted in one direction by the rotating body 5 with four test dampers fixed to the rotating shaft 7, and the twisting torque and twisting angle at this time are measured in both rotational directions. By organizing this measurement data, the static spring constant of the damper 4 under test can be determined.

(2) In the case of durability test of the sample damper 4 First, the rotating body 5 of the sample damper mounting device 1 is fixed to the frame 6 side. Next, the reciprocating load testing device [18 connected to the rod 17 is driven to slowly reciprocate the rotating shaft 7, and the load torque at this time is measured. Then, adjust the reciprocating load test device I8 so that the set torque is achieved, then set it to the specified number of cycles and perform the durability test. At this time, the temperature inside the heat insulation box 23 is set to a predetermined temperature. By doing so, the quality of the rubber damper of the test damper 4 can be checked under conditions close to the environmental conditions of the actual vehicle.

Effects of the Invention The present invention has the following effects compared to conventional devices.

(1) Shorten the number of days required for quality confirmation by improving the efficiency of bench durability tests.

(2) Reduction of bench test costs.

(3) Bench tests can be performed taking into account environmental conditions ranging from low to high temperatures.

(4) Bench load acceleration can be easily performed.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, and FIG. 1 is a front view showing a main part cut away, and FIG. 2 is a cross-sectional view taken along the line of FIG. 1. I is a test damper mounting device, 2 is a reciprocating load loading device, 3 is a static load loading device, 4 is a test damper, 5 is a rotating body, 6.1
4 is the frame %7.13° 20 is the rotating shaft, 18 is the reciprocating load test device.

Claims (1)

[Claims] It consists of a test damper mounting device 1, a reciprocating load applying device 2, and a static load applying device 3. It is composed of a rotating body 5 that fits and holds, a rotating shaft 7 that fits and holds the boss portion 8, and a frame 6 that rotatably and detachably supports the rotating body 5. A rotating shaft 13 that connects the device 2 to the rotating shaft 7 of the test damper mounting device 1, and a frame 14 that supports this rotating shaft 13.
and a reciprocating load testing device 18 that rotationally biases the rotary shaft 13 in the reciprocating direction, and further includes a static load loading device 3 and a rotary shaft 2 connected to the rotary body 5 of the test damper mounting device 1.
1. A bench testing device for damper rubber, comprising: a rotary shaft 20; and a rotary device that statically rotates the rotary shaft 20.