阅读说明：本技术 一种超高压循环实验装置 (Ultrahigh pressure circulation experimental device ) 是由 王振华 苏秀莲 李绪明 汤玉彦 王冬灵 于 2021-10-18 设计创作，主要内容包括：本发明公开了一种超高压循环实验装置,涉及液压控制技术领域,包括：第一进油支路,第一进油支路上设有第一单向插装阀,第一进油支路进油端设有第一测试口；第二进油支路,第二进油支路上设有第二单向插装阀,第二进油支路进油端设有第二测试口；汇合干路,第一进油支路和第二进油支路出油端均连接于汇合干路进油端,汇合干路上设有压力表；第一出油支路,第一出油支路上设有第三单向插装阀,第一出油支路进油端连接于汇合干路出油端；第二出油支路,第二出油支路上设有第四单向插装阀,第二出油支路进油端连接于汇合干路出油端；控制器,能够于上述各个电器元件电连接。本发明能够用于检测超高压设备的油压。(The invention discloses an ultrahigh pressure circulation experimental device, which relates to the technical field of hydraulic control and comprises the following components: the test device comprises a first oil inlet branch, a second oil inlet branch, a first test valve, a second test valve and a second test valve, wherein the first one-way cartridge valve is arranged on the first oil inlet branch; a second one-way cartridge valve is arranged on the second oil inlet branch, and a second test port is arranged at the oil inlet end of the second oil inlet branch; the oil outlet ends of the first oil inlet branch and the second oil inlet branch are connected to the oil inlet end of the merging trunk, and a pressure gauge is arranged on the merging trunk; the oil inlet end of the first oil outlet branch is connected with the oil outlet end of the confluence main line; a fourth one-way cartridge valve is arranged on the second oil outlet branch, and the oil inlet end of the second oil outlet branch is connected with the oil outlet end of the confluence main line; and a controller electrically connected to the electrical components. The invention can be used for detecting the oil pressure of ultrahigh-pressure equipment.)

1. An ultrahigh pressure cycle experimental apparatus, characterized by comprising:

the system comprises a first oil inlet branch, a second oil inlet branch and a control device, wherein a first one-way cartridge valve is arranged on the first oil inlet branch, a first test port is arranged at the oil inlet end of the first oil inlet branch, and the first test port is used for connecting a first oil inlet interface of ultrahigh pressure equipment;

the second oil inlet branch is provided with a second one-way cartridge valve, the oil inlet end of the second oil inlet branch is provided with a second test port, and the second test port is used for connecting a second oil inlet interface of ultrahigh pressure equipment;

the oil outlet ends of the first oil inlet branch and the second oil inlet branch are connected to the oil inlet end of the confluence main path, and a pressure gauge is arranged on the confluence main path;

the oil outlet end of the first oil outlet branch is connected with the oil outlet end of the confluence main line, and the oil outlet end of the first oil outlet branch is connected with the oil inlet end of the first oil inlet branch;

a fourth one-way cartridge valve is arranged on the second oil outlet branch, the oil inlet end of the second oil outlet branch is connected to the oil outlet end of the confluence main line, and the oil outlet end of the second oil outlet branch is connected to the oil inlet end of the second oil inlet branch;

the first one-way cartridge valve, the second one-way cartridge valve, the third one-way cartridge valve, the fourth one-way cartridge valve and the pressure gauge are all electrically connected with the controller.

2. The ultra-high pressure cycling experimental device according to claim 1, characterized in that: the high-pressure filter is arranged on the converging main road and is closer to the oil outlet end of the converging main road than the pressure gauge.

3. The ultra-high pressure cycling experimental device according to claim 2, characterized in that: the converging main line is provided with a flowmeter, and the flowmeter is closer to the oil outlet end of the converging main line than the high-pressure filter.

4. The ultra-high pressure cycling experimental device according to claim 3, characterized in that: the converging main line is provided with a proportional valve, and the proportional valve is closer to the oil outlet end of the converging main line than the flowmeter.

5. The ultra-high pressure cycling experimental device according to claim 1, characterized in that: the first one-way cartridge valve, the second one-way cartridge valve, the third one-way cartridge valve and the fourth one-way cartridge valve are all one-way cartridge valves with the drift diameter of 25.

Technical Field

The invention relates to the technical field of hydraulic control, in particular to an ultrahigh pressure circulation experiment device.

Background

In recent years, with the rapid development of hydraulic industry in China and the rapid and unprecedented development of ultrahigh pressure equipment, a plurality of large hydraulic machines are built in succession, the pressing tonnage is larger and larger, and the system pressure is higher and higher, so that the ultrahigh pressure and large flow hydraulic system is gradually popularized and applied. At present, the design technology of the ultrahigh pressure hydraulic system in China is close to or reaches the international advanced level, but the level of the ultrahigh pressure circulation experiment device is far behind, the development pace of host equipment cannot be kept up with, and the development requirement of large host equipment cannot be met.

Therefore, an ultrahigh pressure cycling experimental device is urgently needed in the market for solving the problems.

Disclosure of Invention

The invention aims to provide an ultrahigh pressure circulation experiment device, which is used for solving the technical problems in the prior art and can detect the flow of ultrahigh pressure equipment such as a hydraulic motor and the like so as to indirectly calculate the hydraulic pressure.

In order to achieve the purpose, the invention provides the following scheme:

the invention discloses an ultrahigh pressure circulation experimental device, which comprises:

the system comprises a first oil inlet branch, a second oil inlet branch and a control device, wherein a first one-way cartridge valve is arranged on the first oil inlet branch, a first test port is arranged at the oil inlet end of the first oil inlet branch, and the first test port is used for connecting a first oil inlet interface of ultrahigh pressure equipment;

the second oil inlet branch is provided with a second one-way cartridge valve, the oil inlet end of the second oil inlet branch is provided with a second test port, and the second test port is used for connecting a second oil inlet interface of ultrahigh pressure equipment;

the oil outlet ends of the first oil inlet branch and the second oil inlet branch are connected to the oil inlet end of the confluence main path, and a pressure gauge is arranged on the confluence main path;

the oil outlet end of the first oil outlet branch is connected with the oil outlet end of the confluence main line, and the oil outlet end of the first oil outlet branch is connected with the oil inlet end of the first oil inlet branch;

a fourth one-way cartridge valve is arranged on the second oil outlet branch, the oil inlet end of the second oil outlet branch is connected to the oil outlet end of the confluence main line, and the oil outlet end of the second oil outlet branch is connected to the oil inlet end of the second oil inlet branch;

and the first one-way cartridge valve, the second one-way cartridge valve, the third one-way cartridge valve, the fourth one-way cartridge valve and the flowmeter are all electrically connected with the pressure gauge.

Preferably, the confluence main line is provided with a high pressure filter, and the high pressure filter is closer to the oil outlet end of the confluence main line than the pressure gauge.

Preferably, a flowmeter is arranged on the merging main line, and the flowmeter is closer to the oil outlet end of the merging main line than the high-pressure filter.

Preferably, a proportional valve is arranged on the merging trunk, and the proportional valve is closer to the oil outlet end of the merging trunk than the flowmeter.

Preferably, the first one-way cartridge valve, the second one-way cartridge valve, the third one-way cartridge valve and the fourth one-way cartridge valve are all one-way cartridge valves with a drift diameter of 25.

Compared with the prior art, the invention has the following technical effects:

the invention can be matched with ultrahigh pressure equipment to adapt to the positive and negative circulating flow directions of the ultrahigh pressure equipment, and the flow of the ultrahigh pressure equipment is measured, so that the hydraulic pressure of the ultrahigh pressure equipment is indirectly calculated. The device is integral, simple in structure, flexible in design, good in controllability, extremely low in cost and convenient to maintain. The method can be widely applied to the fields of hydraulic tool experiments, pressure vessel experiments, powder metallurgy experiments, ultrahigh pressure cutting experiments and the like, and can promote ultrahigh pressure technology in the field and bring considerable economic benefits. The drift diameter size of corresponding cartridge valve combination spare part also can be adjusted according to actual conditions to this installation environment that adapts to not equidimension makes its application range wider, and the adaptability is stronger.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic structural diagram of an ultrahigh pressure cycle experimental apparatus according to an embodiment of the present invention;

in the figure: 1-a first one-way cartridge valve; 2-a second one-way cartridge valve; 3-a third one-way cartridge valve; 4-a fourth one-way cartridge valve; 5-a high pressure filter; 6-a flow meter; 7-a proportional valve; 8-a pressure gauge; a-a first test port; b-a second test port; 100-ultrahigh pressure circulation experimental device.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The invention aims to provide an ultrahigh pressure circulation experiment device, which is used for solving the technical problems in the prior art and can detect the flow of ultrahigh pressure equipment such as a hydraulic motor and the like so as to indirectly calculate the hydraulic pressure.

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.

As shown in fig. 1, the present embodiment provides an ultra-high pressure cycling experimental apparatus 100, including:

the oil inlet device comprises a first oil inlet branch, wherein a first one-way cartridge valve 1 is arranged on the first oil inlet branch, and the first one-way cartridge valve 1 is opened along the direction from the oil inlet end to the oil outlet end of the first oil inlet branch. The oil inlet end of the first oil inlet branch is provided with a first test port A, the first test port A is used for being connected with a first oil inlet interface of ultrahigh pressure equipment, the ultrahigh pressure equipment is a hydraulic motor in the embodiment, but the ultrahigh pressure equipment is not limited to the hydraulic motor in actual use;

and a second one-way cartridge valve 2 is arranged on the second oil inlet branch, and the second one-way cartridge valve 2 is opened along the direction from the oil inlet end to the oil outlet end of the second oil inlet branch. And the oil inlet end of the second oil inlet branch is provided with a second test port B, and the second test port B is used for connecting a second oil inlet interface of ultrahigh pressure equipment (namely a hydraulic motor). It should be noted that in the actual use process, when the first oil inlet interface and the second oil inlet interface of the hydraulic motor work, one oil inlet produces one oil, but not the oil inlets at the same time;

the oil outlet ends of the first oil inlet branch and the second oil inlet branch are connected to the oil inlet end of the merging trunk, hydraulic oil in the first oil inlet branch and the second oil inlet branch can respectively flow to the merging trunk, a pressure gauge 8 is arranged at the oil inlet end of the merging trunk, the hydraulic oil from the first oil inlet branch or the second oil inlet branch is measured by the pressure gauge 8, and the liquid pressure is measured;

the first branch of producing oil is equipped with third one-way cartridge valve 3 on the branch road, and along the direction of the oil inlet end to the end of producing oil of first branch road of producing oil, third one-way cartridge valve 3 is the state of opening. The oil inlet end of the first oil outlet branch is connected to the oil outlet end of the confluence main line, and the oil outlet end of the first oil outlet branch is connected to the oil inlet end of the first oil inlet branch;

and a fourth one-way cartridge valve 4 is arranged on the second oil outlet branch, and the fourth one-way cartridge valve 4 is in an open state along the direction from the oil inlet end to the oil outlet end of the second oil outlet branch. The oil inlet end of the second oil outlet branch is connected to the oil outlet end of the confluence main line, and the oil outlet end of the second oil outlet branch is connected to the oil inlet end of the second oil inlet branch;

the controller, first one-way cartridge valve 1, second one-way cartridge valve 2, third one-way cartridge valve 3, fourth one-way cartridge valve 4 and manometer 8 all are connected with the controller electricity, in data transmission to the controller that manometer 8 detected, meanwhile, the controller can also control opening or closing of first one-way cartridge valve 1, second one-way cartridge valve 2, third one-way cartridge valve 3 and fourth one-way cartridge valve 4, the controller can be PLC controller or computer all can.

When the hydraulic motor test device is used, the first test port A is connected with a first oil inlet interface of the hydraulic motor, the second test port B is connected with a second oil inlet interface of the hydraulic motor, hydraulic oil is introduced into the first test port A through the first oil inlet interface of the hydraulic motor, the hydraulic oil firstly passes through the first one-way cartridge valve 1, then enters a confluence main path after being measured by the pressure gauge 8, the controller controls the third one-way cartridge valve 3 to be closed at the moment, and the hydraulic oil flows into the hydraulic motor from the second oil inlet interface (the second oil inlet interface plays a technical role in oil outlet at the moment) through the second test port B after passing through the fourth one-way cartridge valve 4;

and then, reversing is carried out, hydraulic oil in the hydraulic motor flows into a second oil inlet branch through a second oil inlet interface to a second test port B, and then enters a junction trunk path after sequentially passing through a second one-way cartridge valve 2 and a pressure gauge 8, at the moment, the controller controls a fourth one-way cartridge valve 4 to be closed, a third one-way cartridge valve 3 to be opened, and after the hydraulic oil passes through the third one-way cartridge valve 3, the hydraulic oil flows into the hydraulic motor from a first test port A and a first oil inlet interface (at the moment, the first oil inlet interface plays a technical effect of oil outlet).

In this embodiment, the high pressure filter 5 is disposed on the merging trunk, and the high pressure filter 5 is closer to the oil outlet end of the merging trunk than the pressure gauge 8. When the hydraulic oil is about to enter the confluence main road, the hydraulic oil firstly passes through the high-pressure filter 5 and is used for filtering impurities in the hydraulic oil to prevent pipelines from being blocked. The high-pressure filter 5 may be commercially available, and is not limited to a specific size.

In this embodiment, the merging trunk is provided with a flow meter 6, the flow meter 6 is electrically connected to the controller, and the flow meter 6 is closer to the oil outlet end of the merging trunk than the high-pressure filter 5. The hydraulic oil passes through the high-pressure filter 5 and then passes through the flow meter 6, and the flow meter 6 is used for detecting the flow rate of the hydraulic oil and transmitting the detection data to the controller.

In the embodiment, the merging trunk is provided with a proportional valve 7, the proportional valve 7 is electrically connected with the controller, and the proportional valve 7 is closer to the oil outlet end of the merging trunk than the flowmeter 6. The proportional valve 7 can control hydraulic oil to flow at a certain flow rate, and can play a throttling role according to actual needs.

In the present embodiment, the first one-way cartridge valve 1, the second one-way cartridge valve 2, the third one-way cartridge valve 3 and the fourth one-way cartridge valve 4 are all one-way cartridge valves with a drift diameter 25. The one-way cartridge valve is prior art, simple to operate to can realize one-way flowing's technological effect, meanwhile, this embodiment can also select the one-way cartridge valve of different latus rectum according to actual installation environment, and accommodation is wide.

In this embodiment, first one-way cartridge valve 1, one-way cartridge valve 2 of second, one-way cartridge valve 3 of third, one-way cartridge valve of fourth and relevant pipeline all use high pressure resistant material preparation, can be applicable to high pressure environment work, and is not fragile, like 42CrMo, other materials can also be chooseed for use according to actual need to the skilled person in the art. And the control cover plates of the first one-way cartridge valve 1, the second one-way cartridge valve 2, the third one-way cartridge valve 3 and the fourth one-way cartridge valve 4 adopt boss design, can bear 63MPa of high pressure, and basically meet various requirements.

The principle and the implementation mode of the present invention are explained by applying specific examples in the present specification, and the above descriptions of the examples are only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.