CN211599153U

CN211599153U - Hydraulic test system

Info

Publication number: CN211599153U
Application number: CN201922487217.0U
Authority: CN
Inventors: 郭敬滨; 常杰; 张�杰; 周建恒
Original assignee: Sanhe Huaxia Hengtai Electronic Technology Co ltd
Current assignee: Sanhe Huaxia Hengtai Electronic Technology Co ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-09-29
Anticipated expiration: 2029-12-31

Abstract

The utility model provides a hydraulic test system, including oil tank, hydraulic pump, communicate in hydraulic pump export oil supply pipeline, test return line and return oil pipe way, be equipped with pressure oil filter on supplying oil pipe way, be equipped with the oil extraction filter on returning oil pipe way. And detection solenoid valves are arranged between the oil supply pipeline and the test oil supply pipeline and between the test return pipeline and the oil return pipeline, and the detection solenoid valves can form conduction between the oil supply pipeline and the oil return pipeline or conduction between the oil supply pipeline and the test oil supply pipeline and conduction between the test return pipeline and the oil return pipeline. The utility model discloses a hydraulic test system has improved the oil circuit control of system under detecting and waiting to examine different work condition, can promote the filter effect of hydraulic oil.

Description

Hydraulic test system

Technical Field

The utility model relates to a hydraulic equipment tests technical field, in particular to hydraulic test system.

Background

In the prior art, a hydraulic valve is an element for controlling and regulating the pressure, the liquid amount and the flow direction of liquid flow in a hydraulic system, so that an execution element can work as required, and various parameters of the hydraulic valve need to be tested when the hydraulic valve leaves a factory and in the using process. The hydraulic valve detection device needs the oil tank to assist in detection, detects the hydraulic valve when leaving a factory, easily influences the test result by the cleaning degree of hydraulic oil in the oil tank, and easily causes the condition of hydraulic oil pollution due to the use of the hydraulic valve after the hydraulic valve in the use process is tested. Although the filtering function of hydraulic oil is added in part of the existing hydraulic detection processes, most of the hydraulic detection processes are provided with a filtering device on a detection pipeline or a return pipeline, or a filtering system is independently arranged, the continuous work of the filtering function can also cause the waste of resources.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a hydraulic test system, improves the oil circuit control of system under detecting and waiting to examine different work condition, can promote the filter effect of hydraulic oil.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

a hydraulic test system comprises an oil tank, a hydraulic pump, an oil supply pipeline communicated with the outlet of the hydraulic pump, a test oil supply pipeline, a test return pipeline and an oil return pipeline, wherein a pressure oil filter is arranged on the oil supply pipeline;

an oil discharge filter is arranged on the oil return pipeline; the oil supply pipeline and the test oil supply pipeline as well as the test return pipeline and the oil return pipeline are provided with detection solenoid valves, and the detection solenoid valves can form conduction between the oil supply pipeline and the oil return pipeline, or the oil supply pipeline, the test return pipeline and the oil return pipeline.

Furthermore, a pressure regulating valve is communicated between the oil supply pipeline and the oil return pipeline, and is arranged between the downstream of the oil pressing filter and the upstream of the oil discharging filter.

Furthermore, a first check valve is arranged on the oil supply pipeline.

Furthermore, a second one-way valve is arranged on the oil return pipeline.

Further, the test oil supply pipeline and the test return pipeline are both communicated with the tested hydraulic valve; and an oil pressure gauge is installed on the test oil supply pipeline, and a flowmeter is installed on the test return pipeline.

Furthermore, the hydraulic test system further comprises an oil circuit board internally provided with a liquid passage, the oil supply pipeline and the oil return pipeline are communicated with the oil circuit board, and the detection solenoid valve, the flowmeter, the oil pressure meter and the tested hydraulic valve are all arranged on the oil circuit board.

Furthermore, the tested hydraulic valve is a three-position four-way hydraulic valve, and the other two passages of the tested hydraulic valve are communicated with the two passages communicating the testing oil supply pipeline and the testing return pipeline.

Furthermore, the tested hydraulic valve is a pressure regulating valve, and the pressure regulating valve is communicated between the test oil supply pipeline and the test return pipeline.

Compared with the prior art, the utility model discloses following advantage has:

(1) the utility model discloses a hydraulic test system through setting up the oil extraction filter and detecting the solenoid valve, realized through opening and close of detecting the solenoid valve detecting with wait to examine the oil circuit control under the different operating modes, can promote the filter effect of hydraulic oil, help reducing the waste of resource to the cleanliness of effectual assurance hydraulic oil.

(2) Through the cooperation of the oil circuit board and the detection solenoid valve, the detection solenoid valve is adopted as a control system, and the traditional throttle valve manual regulation mode is replaced, so that the test result is more accurate. Besides, the oil circuit boards with different pipeline routes are constructed, the condition that the pipelines need to be disassembled when different oil ports of the tested hydraulic valve need to be tested can be reduced, misoperation of operators caused by frequent disassembly of the hydraulic pipelines is avoided, the working efficiency is improved, and leakage and waste of hydraulic oil are reduced.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:

fig. 1 is a schematic diagram of a hydraulic test system according to an embodiment of the present invention;

fig. 2 is another schematic diagram of a hydraulic test system according to an embodiment of the present invention;

description of reference numerals:

1-oil tank, 100-tested hydraulic valve; 2-a hydraulic pump; 3-pressing oil filter; 4-a first one-way valve; 501-detection solenoid valve, 502-one-way valve, 503-flowmeter, 504-oil pressure gauge; 6-a second one-way valve; 7-oil discharge filter; 8-pressure regulating valve.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "back", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The embodiment relates to a hydraulic test system, which can help to reduce the phenomenon of inaccurate test results and is beneficial to improving the types of test hydraulic valves. The hydraulic test system comprises an oil tank, a hydraulic pump, an oil supply pipeline, an oil supply test pipeline, a return test pipeline and an oil return pipeline, wherein the oil supply pipeline is communicated with an outlet of the hydraulic pump, and a pressure oil filter is arranged on the oil supply pipeline. An oil discharge filter is arranged on the oil return pipeline. The oil supply pipeline and the test oil supply pipeline as well as the test return pipeline and the oil return pipeline are provided with detection solenoid valves, and the detection solenoid valves can form conduction between the oil supply pipeline and the oil return pipeline, or the oil supply pipeline, the test return pipeline and the oil return pipeline.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Based on the above overall design concept, an exemplary structure of the hydraulic test system of the present embodiment is shown in fig. 1-2, and mainly includes an oil tank 1, a hydraulic pump 2, an oil supply line 901, a test oil supply line 902, a test return line 903, and an oil return line 904. An oil supply pipeline 901 is arranged at the outlet of the hydraulic pump 2, a pressure oil filter 3 is arranged on the oil supply pipeline 901, and an oil discharge filter 7 is arranged on the oil return pipeline 904. Detection solenoid valves 501 are provided between the oil supply line 901 and the test oil supply line 902, and between the test return line 903 and the oil return line 904.

Meanwhile, the conduction between the oil supply pipeline 901 and the oil return pipeline 904 can be realized by detecting the opening and closing of the electromagnetic valve 501, or the conduction between the oil supply pipeline 901 and the test oil supply pipeline 902, and the conduction between the test return pipeline 903 and the oil return pipeline 904. The arrangement of the detection solenoid valve 501 avoids misoperation of operators caused by frequent disassembly of the hydraulic pipeline, improves the working efficiency, and reduces leakage and waste of hydraulic oil.

In order to ensure that the system is not easily damaged, a pressure regulating valve 8 is communicated between the oil supply line 901 and the oil return line 904, and the pressure regulating valve 8 is arranged between the downstream of the pressure oil filter 3 and the upstream of the drain filter 7. When the tested hydraulic valve 100 is damaged or unqualified, the hydraulic oil can flow back from the oil supply pipeline 901 and through the pressure regulating valve 8, so as to ensure that the hydraulic testing system is not damaged.

In the present embodiment, the oil supply line 901 is provided with a first check valve 4, and the oil return line 904 is also provided with a second check valve 6. The first check valve 4 and the second check valve 6 are mainly used for protecting the hydraulic test system from being normal. In addition, the hydraulic test system further includes an oil path plate with a liquid path inside, and the oil supply line 901 and the oil return line 904 are both communicated with the oil path plate and connected to the detection solenoid valve 501 through the oil path plate. The test oil supply line 902 and the test return line 903 are both in communication with the hydraulic valve under test 100. The oil pressure gauge 504 is installed in the test oil supply line 902, and the flow meter 503 is installed in the test return line 903.

In this embodiment, the hydraulic pump 2 can draw hydraulic oil from the oil tank 1, the hydraulic pump 2 can be connected to the hydraulic oil filter 3 through a pipeline, at this time, one path of the hydraulic oil passes through the first check valve 4 and is connected to the oil circuit board, the detection solenoid valve 501, the oil pressure gauge 504, the hydraulic valve 100 to be tested and the flowmeter 503 are sequentially arranged on the oil circuit board, and the check valve 502 is configured on the oil circuit board. The hydraulic oil flows back into the oil tank 1 through the second check valve 6, the drain filter 7. The other path of the hydraulic oil flowing out of the hydraulic oil filter 3 can flow back to the oil tank 1 through the first check valve 4, the detection solenoid valve 501, the second check valve 6 and the oil discharge filter 7.

As shown in fig. 1-2, when the detection solenoid valve 501 is de-energized, the hydraulic oil in the oil tank 1 cannot flow to the oil pressure gauge 504 through the detection solenoid valve 501, and at this time, the hydraulic oil can only flow back to the return line 904 through the hydraulic pump 2 and the hydraulic oil filter 3, and the oil supply line 901 connects the first check valve 4, and then flows back to the oil tank 1 through the second check valve 6 and the oil discharge filter 7, so as to ensure the cleanliness of the hydraulic oil in the oil tank 1. When the detection solenoid valve 501 is energized, the hydraulic oil 504 flows into the detection solenoid valve 501 through the hydraulic pump 2 and the hydraulic oil filter 3, flows into the test oil supply pipeline 902 through the first check valve 4 on the oil supply pipeline 901, is connected with the hydraulic valve 100 to be tested through the oil pressure gauge 504, flows back to the test return pipeline 903, flows back to the detection solenoid valve 501 to the return pipeline 904 through the flowmeter 503 and the check valve 502, and flows back to the oil tank 1 through the second check valve 6 and the oil discharge filter 7.

If the hydraulic valve 100 to be tested is a three-position four-way hydraulic valve, the two passages communicating the test oil supply line 902 and the test return line 903 are arranged to pass through the other two passages of the hydraulic valve 100 to be tested. In the present embodiment, the other two passages of the tested hydraulic valve 100 are connected through the oil passage plate. If the hydraulic valve under test 100 is a pressure regulating valve, the pressure regulating valve may be directly connected between the test oil supply line 902 and the test return line 903.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A hydraulic test system comprises an oil tank (1), a hydraulic pump (2), an oil supply pipeline (901) communicated with an outlet of the hydraulic pump (2), a test oil supply pipeline (902), a test return pipeline (903) and an oil return pipeline (904), wherein a pressure oil filter (3) is arranged on the oil supply pipeline (901); the method is characterized in that:

an oil discharge filter (7) is arranged on the oil return pipeline (904); detection solenoid valves (501) are arranged between the oil supply pipeline (901) and the test oil supply pipeline (902) and between the test return pipeline (903) and the oil return pipeline (904), and the detection solenoid valves (501) can form conduction between the oil supply pipeline (901) and the oil return pipeline (904), or conduction between the oil supply pipeline (901) and the test oil supply pipeline (902) and conduction between the test return pipeline (903) and the oil return pipeline (904).

2. The hydraulic test system of claim 1, wherein: and a pressure regulating valve (8) is communicated between the oil supply pipeline (901) and the oil return pipeline (904), and the pressure regulating valve (8) is arranged between the downstream of the pressure oil filter (3) and the upstream of the oil discharge filter (7).

3. The hydraulic test system of claim 2, wherein: the oil supply pipeline (901) is also provided with a first one-way valve (4).

4. The hydraulic test system of claim 2, wherein: and a second one-way valve (6) is also arranged on the oil return pipeline (904).

5. The hydraulic test system of any one of claims 1-4, wherein: the test oil supply pipeline (902) and the test return pipeline (903) are both communicated with a tested hydraulic valve (100); an oil pressure gauge (504) is installed on the test oil supply pipeline (902), and a flowmeter (503) is installed on the test return pipeline (903).

6. The hydraulic test system of claim 5, wherein: the hydraulic test system further comprises an oil circuit board with a liquid passage arranged therein, the oil supply pipeline (901) and the oil return pipeline (904) are communicated with the oil circuit board, and the detection electromagnetic valve (501), the flowmeter (503), the oil pressure gauge (504) and the tested hydraulic valve (100) are all arranged on the oil circuit board.

7. The hydraulic test system of claim 6, wherein: the tested hydraulic valve (100) is a three-position four-way hydraulic valve, and the other two passages of the tested hydraulic valve (100) are communicated with the two passages of the test oil supply pipeline (902) and the test return pipeline (903) correspondingly.

8. The hydraulic test system of claim 6, wherein: the tested hydraulic valve (100) is a pressure regulating valve, and the pressure regulating valve is communicated between the test oil supply pipeline (902) and the test return pipeline (903).