Device and method for testing waterproof performance of reduction gearbox

A testing device and gear box technology, applied in liquid/vacuum measurement for liquid tightness, by detecting the appearance of fluid at the leak point, etc., can solve the problems of inability to simulate the impact, time-consuming, labor-intensive, and after-sales problems. , to achieve the effect of shortening the development cycle and cost, high test safety, and realizing repeated use.

Active Publication Date: 2022-05-13
采埃孚合力传动技术(合肥)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the design, development and manufacturing process of the gearbox, the waterproof performance is an important indicator to measure the gearbox. If there is oil leakage or internal water ingress, it will affect the product development cycle and production rework, which is time-consuming, laborious and expensive, and affects delivery. , causing the gearbox to fail, causing complaints from customers, and causing an increase in after-sales problems
Most manufacturers use the air tightness test after the gearbox is assembled. The actual test conditions are quite different from the real working conditions of the whole vehicle, and it is impossible to simulate the impact of rain on the gearbox under real working conditions; especially on the gearbox Most of the normally open exhaust valves are used. In the actual test, the exhaust valve will be removed for air tightness testing, and the sealing performance at the exhaust valve cannot be tested.
There are many after-sales cases that prove that oil leakage and rainwater ingress are easy to occur at the exhaust valve

Method used

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  • Device and method for testing waterproof performance of reduction gearbox
  • Device and method for testing waterproof performance of reduction gearbox
  • Device and method for testing waterproof performance of reduction gearbox

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Such as Figure 1-4 As shown, a waterproof performance test device of a gearbox in this embodiment includes a test device 1 , a sample to be tested 2 , a water pump structure 3 , a water storage tank 4 , and a shaking mechanism 5 .

[0037] The tested sample 2 is set in the reservoir 4 .

[0038] The test device 1 includes a water shower device 11, a water shower tank 12, a support structure 13, and a fastener 14; the test device 1 is arranged in the reservoir 4, above the sample to be tested 2; the water shower device 11 is arranged in the test device 1 Lower end; during specific implementation, the water shower device 11 is arranged inside or at the bottom of the water shower tank 12, and the water shower tank 12 is fixed above the water shower device 11. When water is poured into the water shower tank 12, the water flows through the water shower device 11 to the sample 2 to be tested. Above; the support structure 13 is provided with a plurality of waist-shaped holes...

Embodiment 2

[0043] Such as Figure 1-4 As shown, the test method for the waterproof performance test of a gear box of this embodiment is applied to the test device of the above-mentioned embodiment 1, and the steps are as follows:

[0044] (a) Place the tested sample 2 in the reservoir 4, the tested sample 2 is placed under the test device 1, and the tested sample 2 is placed in the vehicle installation posture;

[0045] (b) Adjust the preset heights of the shower tank 12 and the shower device 11;

[0046] (c) Inject water into the reservoir 4;

[0047] (d) Turn on the water pump 33 so that the water in the reservoir 4 is sucked from the water inlet pipe 31 and discharged from the water outlet pipe 32 into the water shower tank 12, and the water flows through the water shower device 11 onto the sample 2 to be tested;

[0048] (e) Turn on the switch of the shaking mechanism 5 to make the reservoir 4 shake from side to side, simulating the shaking effect of the reduction box when the car ...

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Abstract

The invention provides a waterproof performance testing device and a waterproof performance testing method for a reduction gearbox. The waterproof performance testing device comprises a testing device, a tested sample piece, a water conveying structure, a reservoir and a shaking mechanism. The testing device comprises a water spraying device, a water spraying tank and a support structure. The testing device is arranged above the reservoir and the tested sample piece; the water spraying device is arranged at the lower end of the testing device; the water spraying tank is fixed above the water spraying device; one end of the support structure is fixed in the reservoir, and the other end is connected with the water spraying tank. The water conveying structure comprises a water inlet pipe, a water outlet pipe and a water pump; the water pump is fixed outside the reservoir; the other end of the water inlet pipe is connected with the water pump; the other end of the water outlet pipe is connected with the water pump; the shaking mechanism is used for simulating vehicle shaking to detect the sealing state of the reduction gearbox. The sealing problem can be found in the early stage of development of the reduction gearbox, rectification and verification can be conducted in time, water circulation can be achieved, and water resources are saved.

Description

technical field [0001] The invention relates to the technical field of testing the waterproof performance of a gearbox, in particular to a waterproof performance testing device and a testing method for a gearbox. Background technique [0002] In the design, development and manufacturing process of the gearbox, the waterproof performance is an important indicator to measure the gearbox. If there is oil leakage or internal water ingress, it will affect the product development cycle and production rework, which is time-consuming, laborious and expensive, and affects delivery. , causing the gearbox to fail, causing customer complaints, and causing an increase in after-sales problems. Most manufacturers use the air tightness test after the gearbox is assembled. The actual test conditions are quite different from the real working conditions of the whole vehicle, and it is impossible to simulate the impact of rain on the gearbox under real working conditions; especially on the gear...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M3/04
CPCG01M3/04
Inventor 彭秋咏万媛媛吴琳琪余非汝王捷
Owner 采埃孚合力传动技术(合肥)有限公司
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