Dry flow test method and test device

A technology of a test device and a test method, applied in the field of mechanical engineering, can solve the problems that the product cleanliness index is not easy to meet the standard, pollute the production environment of workstation appliances, inconvenient storage, transportation and assembly, etc., and achieves short test period, low cost, and convenient transportation. Effect

Active Publication Date: 2012-11-21
FAWER AUTOMOTIVE PARTS
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  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention discloses a flow dry test method and a test device to solve the problems in the prior art that the product stays in the hydraulic oil test medium after the test, pollutes the station equipment and the production

Method used

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  • Dry flow test method and test device

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Example Embodiment

[0016] The following is an example of an oil pump flow dry test method and test device of the present invention; the test product 19 is an oil pump with a drive sprocket.

[0017] Such as figure 1 Shown: The device of the present invention includes workbench 1, oil tank 2, hydraulic oil test medium 3, plexiglass transparent tube 4, hose 5, first liquid level sensor 6, second liquid level sensor 7, MCU micro-control unit 8, Seal joint 9, oil inlet seal cylinder 10, clamping rotating cylinder 11, first solenoid valve 12, second solenoid valve 13, pneumatic triplet 14, servo motor 15, motor bracket 16, bearing seat 17, shift fork 18; The oil tank 2 is installed under the workbench 1, and the oil tank 2 contains the hydraulic oil test medium 3; the lower end of the transparent tube 4 is inserted into the hydraulic oil test medium 3 in the oil tank 2; the installation height of the first liquid level sensor 6 and the hydraulic oil test in the oil tank 2 The liquid level of the medium...

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Abstract

The invention discloses a dry flow test method and a test device which includes hydraulic oil test medium and a product master body. The dry flow test method is characterized in that the hydraulic oil test medium does not contact with a test product. The dry flow test method includes the following steps of: 1, inserting the lower end of a transparent tube into the hydraulic oil test medium; 2, sealing and connecting the upper end of the transparent tube with a fluid suction port of the product master body, and calibrating the rising height of the liquid level of the hydraulic oil test medium in the transparent tube when the product master body is under the working conditions of rated rotating speed and rated oil suction time; 3, removing the product master body, and sealing and connecting the upper end of the transparent tube with the fluid suction port the test product, measuring the oil suction time at which the liquid level of the hydraulic oil test medium in the transparent tube rises to the calibrated height when the test product is under the working state of rated rotating speed, and comparing the measured oil suction time with the calibrated oil suction time. If the measured oil suction time is shorter than or equal to the calibrated oil suction time, the test product is qualified. The dry flow test method is simple and accurate, high in repeatability precision, low in cost and short in test period and does not affect the cleanliness of the product.

Description

technical field [0001] The invention belongs to the technical field of mechanical engineering, and relates to a flow dry test method and a test device, which are especially suitable for delivery detection of flow of oil pumps and the like. Background technique [0002] The traditional oil pump flow detection method usually uses special hydraulic oil as the test medium. Under the conditions of calibration test oil temperature, viscosity, speed, and test pressure, the volumetric flow rate of the oil pump is detected through a flow meter. This kind of test method needs to drain the oil after the test. After the test, the product often retains a lot of hydraulic oil test medium, which will pollute the product to a certain extent. It brings inconvenience to storage, transportation, and user assembly and use; this test method has a long test period, slow beat, large medium consumption, and high test cost. Contents of the invention [0003] The invention discloses a flow dry tes...

Claims

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Application Information

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IPC IPC(8): F04B51/00
Inventor 田友武
Owner FAWER AUTOMOTIVE PARTS
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