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A hydraulic excavator main valve performance test bench

A technology for hydraulic excavators and test benches, which is applied in the testing of mechanical components, testing of machine/structural components, liquid tightness measurement using liquid/vacuum degree, etc., and can solve problems such as the difficulty in realizing the performance detection of the main valve of the excavator , to achieve the effect of fast connection

Inactive Publication Date: 2014-10-01
CHANGSHU HUAWEI TRACK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, due to the lack of devices that can detect the performance of the main valve of the excavator in various aspects, it is difficult to realize the performance detection of the main valve of the excavator.

Method used

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  • A hydraulic excavator main valve performance test bench

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Embodiment Construction

[0038] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the present invention.

[0039] Such as figure 1 As shown, the embodiment of the present invention is a hydraulic excavator main valve performance detection test bench, which includes an excavator hydraulic simulation unit and an electronic control unit; the excavator hydraulic simulation unit includes: a power source for simulating the excavator engine; Hydraulic pump, the hydraulic pump is connected with the power source; the pressure flow control device, the hydraulic pump is connected with the main valve to be tested through the pressure flow control device; the load simulation device for simulating the hydraulic actuator parts of the excavator; it is used to connect the main valve to be tested, Piping for pressure flow control devices, hydraulic pumps, and load simulators. The electronic control unit includes: a p...

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Abstract

The invention discloses a hydraulic excavator main valve performance detection test bench, which belongs to a hydraulic system detection device, and includes an excavator hydraulic simulation unit, an electric control unit, a leakage detection unit and a circulation cooling unit. The beneficial effects of the present invention are: through the control device to control the action of each unit in the oil circuit, the multi-faceted detection of the performance of the main valve of the hydraulic excavator can be realized; Switching between valves realizes manual control of the main valve to be tested and program automatic control of the main valve to be tested; the connection between the main valve to be tested and the test bench is quick and convenient through quick connectors.

Description

technical field [0001] The invention relates to a hydraulic system detection device, in particular to a hydraulic excavator main valve performance detection test bench. Background technique [0002] With the development of infrastructure, excavators and other construction machinery have been widely used in construction, water conservancy and other engineering fields. The main purpose of an excavator is to extract material from the earth's surface and transfer it to the discharge point, then transfer it back to the excavation site, and repeat. Most of the excavators currently used are hydraulic excavators, which have the advantages of flexible construction and high efficiency, so they are widely used in housing construction, water conservancy and other occasions. The hydraulic system of the excavator is mainly composed of the main pump, the main valve, the actuator, hydraulic oil and auxiliary components. The main valve is the core control component of the hydraulic system o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M13/00G01M3/02
Inventor 张涛陆爱华张国通
Owner CHANGSHU HUAWEI TRACK