CN218624805U - Hydraulic speed regulating valve group - Google Patents
Hydraulic speed regulating valve group Download PDFInfo
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- CN218624805U CN218624805U CN202222848563.9U CN202222848563U CN218624805U CN 218624805 U CN218624805 U CN 218624805U CN 202222848563 U CN202222848563 U CN 202222848563U CN 218624805 U CN218624805 U CN 218624805U
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Abstract
The utility model provides a hydraulic pressure speed governing valves relates to hydraulic pressure technical field. The method comprises the following steps: the pressure regulating device comprises a box body, a speed regulating valve is connected in the box body, the speed regulating valve is provided with a first interface, a second interface, a third interface and a fourth interface, the fourth interface is connected with a third one-way valve and a fourth one-way valve, the third one-way valve is connected with a throttle valve and a second one-way valve, the inlet of the throttle valve is connected with a flowmeter through the third interface, the flowmeter is connected with the second interface, the second interface is connected with the first one-way valve and the fourth one-way valve, the first interface is connected with the first one-way valve and the second one-way valve, the side surface of the first interface is connected with a first pressure sensor, the side surface of the second interface is connected with a second pressure sensor, the side surface of the third interface is connected with a third pressure sensor, and the side surface of the fourth interface is connected with a fourth pressure sensor; the hydraulic pump failure detection method has the effects that the output pressure and the flow of the hydraulic pump can be accurately obtained, and whether the hydraulic pump has a failure or not is judged.
Description
Technical Field
The utility model relates to a hydraulic pressure technical field particularly, relates to a hydraulic pressure speed governing valves.
Background
The hydraulic speed regulating valve is a valve body for regulating hydraulic flow rate by a throttle valve, and is widely applied to the technical field of hydraulic pressure. The hydraulic speed regulating valve can be applied to performance monitoring of a hydraulic pump, whether the performance of the hydraulic pump is in a normal range can be judged by simulating a load through a throttle valve and then measuring the comparison of flow rate and pressure to an idle load state and a load state, and flow meters and pressure meters are required to be used for measuring the flow rate and the pressure.
The current utility model discloses a chinese utility model patent with publication number CN203702710U discloses a hydraulic pressure speed regulating valve, including the valve piece, the preceding grafting of valve piece has the logic valve, and it has flow control valve to peg graft at the back to the valve piece, flow control valve's oil inlet with the oil-out of logic valve is established ties, flow control valve's oil inlet with the oil-out department of logic valve is provided with the pressure measurement and connects, and it has two cartridge valve one to peg graft above the valve piece, and the valve piece left and right sides is pegged graft respectively and is had a cartridge valve two, and cartridge valve one and cartridge valve two are parallelly connected after establishing ties separately and are formed the rectifier circuit with logic valve and flow control valve.
The hydraulic speed regulating valve in the prior art needs to adopt a logic valve and a flow control valve to be connected in series to complete flow rate regulation and differential pressure balancing, and because the front pressure and the rear pressure of the flow control valve are balanced by using the logic valve, the pressure output by a hydraulic pump cannot be accurately obtained, and then whether the hydraulic pump has faults or not is difficult to judge.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a hydraulic pressure speed governing valves, it can accurately obtain hydraulic pump output pressure and flow, and then judges whether there is the trouble in the hydraulic pump.
The embodiment of the utility model is realized like this:
the embodiment of the application provides a hydraulic pressure speed governing valves, it includes the box, the internal speed governing valve that is connected with of box, the speed governing valve opens and is equipped with first interface, second interface, third interface and fourth interface, fourth interface connection has third check valve and fourth check valve, the third check valve is connected with choke valve and second check valve, the entry of choke valve has the flowmeter through the third interface connection, the flowmeter is connected with the second interface, second interface connection has first check valve and fourth check valve, first interface connection has first check valve and second check valve, first interface side is connected with first pressure sensor, second interface side is connected with second pressure sensor, third interface side is connected with third pressure sensor, fourth interface side is connected with fourth pressure sensor.
Through the technical scheme, the outlet of the flow meter is connected with the inlet of the throttling valve, a stable pressure environment can be kept for measuring the flow rate when the flow meter measures, and the throttling valve is used as a part for simulating a load and does not need to be additionally provided with a pressure balancing device.
In some embodiments of the present invention, the throttle valve is provided with a knob, and the knob is located above the speed regulating valve.
Through above-mentioned technical scheme, the choke valve is through the knob regulation load that sets up more the continuous variation operation of being convenient for, and the knob passes the speed governing valve and sets up in the speed governing valve top, operates when being convenient for use.
The utility model discloses an in some embodiments, above-mentioned box top is provided with the apron, the through-hole that is used for dodging the knob is offered to the apron, the apron is connected with LCD and manometer, LCD is connected with the flowmeter, the manometer is connected with first pressure sensor, second pressure sensor, third pressure sensor and fourth pressure sensor.
Through above-mentioned technical scheme, can protect the inner structure of this application not expose outside on the one hand through the apron, on the other hand through-hole, LCD and the manometer that set up on the apron can audio-visually observe the change of real-time detection result through the knob.
In some embodiments of the present invention, a case cover is disposed above the cover plate, and the case cover is hinged to the case body.
Through above-mentioned technical scheme, the case lid that sets up can protect knob, LCD and manometer can not damage because of the collision in the transportation.
In some embodiments of the present invention, the range of the flow meter is between 66L/min and 520L/min.
Through the technical scheme, the cost of the flowmeter can be controlled by selecting the commonly used measuring range of the flowmeter, and the flowmeter has economical efficiency.
In some embodiments of the present invention, the operating pressure of the speed regulating valve is less than 40MPa.
Through the technical scheme, a proper pressure range is defined, the cost of the application is controlled, and the method has economical efficiency.
Compared with the prior art, the embodiment of the utility model has following advantage or beneficial effect at least:
no redundant elements affect the pressure and flow rate in the present application, and accurate pressure and flow rate values can be obtained for determining whether the hydraulic pump has a fault.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and that those skilled in the art can also obtain other related drawings based on these drawings without inventive efforts.
Fig. 1 is an internal schematic view of a hydraulic governing valve set according to an embodiment of the present invention;
fig. 2 is an isometric view of a hydraulic governor valve set according to an embodiment of the present invention;
fig. 3 is a front view of a speed regulating valve of a hydraulic speed regulating valve group according to an embodiment of the present invention;
fig. 4 is a top view of a speed control valve of a hydraulic speed control valve group according to an embodiment of the present invention;
fig. 5 is a right side view of a speed control valve of a hydraulic speed control valve group according to an embodiment of the present invention;
fig. 6 is a left side view of a speed control valve of a hydraulic speed control valve group according to an embodiment of the present invention;
fig. 7 is a schematic diagram of a hydraulic governor valve set according to an embodiment of the present invention.
Icon: 1-speed regulating valve; 2-a flow meter; 3-a first connection pipe; 4-a second connecting tube; 5-a box body; 6-cover plate; 7-liquid crystal display; 8-pressure gauge; 9-a box cover; 10-a throttle valve; 11-a first pressure sensor; 12-a second pressure sensor; 13-a third pressure sensor; 14-a fourth pressure sensor; 15-a second interface; 16-a first interface; 17-a fourth interface; 18-a third interface; 19-a knob; 20-a first one-way valve; 21-a second one-way valve; 22-a third one-way valve; 23-fourth one-way valve.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the embodiments of the present invention, it should be noted that, if the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear based on the directions or positional relationships shown in the drawings, or the directions or positional relationships that the products of the present invention are usually placed when used, it is only for convenience of description of the present invention and simplification of description, but not for indication or suggestion that the indicated device or element must have a specific direction, be constructed and operated in a specific direction, and therefore, the present invention should not be construed as being limited thereby. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another, and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not require that the components be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the embodiments of the present invention, "a plurality" means at least 2.
In the description of the embodiments of the present invention, it should be further noted that unless explicitly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.
Examples
Referring to fig. 1-7, fig. 1-7 show an embodiment of the present invention.
The embodiment provides a hydraulic pressure speed governing valves, it includes box 5, a serial communication port, speed governing valve 1 is connected in the box 5, speed governing valve 1 has seted up first interface 16, second interface 15, third interface 18 and fourth interface 17, fourth interface 17 is connected with third check valve 22 and fourth check valve 23, third check valve 22 is connected with choke valve 10 and second check valve 21, the entry of choke valve 10 is connected with flowmeter 2 through third interface 18, flowmeter 2 is connected with second interface 15, second interface 15 is connected with first check valve 20 and fourth check valve 23, first interface 16 is connected with first check valve 20 and second check valve 21, first interface 16 side is connected with first pressure sensor 11, second interface 15 side is connected with second pressure sensor 12, third interface 18 side is connected with third pressure sensor 13, fourth interface 17 side is connected with fourth pressure sensor 14.
When the hydraulic control system is used, an output pipe of a hydraulic pump is connected with an oil return pipe of a first connecting pipe 3 through a high-pressure hose, the oil return pipe of the hydraulic pump is connected with a second connecting pipe 4 through the high-pressure hose, the first connecting pipe 3 is connected with a first connector 16 on the right side of a speed regulating valve 1, liquid in the speed regulating valve 1 enters through the first connector 16, flows to a second connector 15 through a first one-way valve 20, flows out of the speed regulating valve 1 from the second connector 15, enters a pipeline where a flowmeter 2 is located after passing through a section of C-shaped pipe, the flowmeter 2 determines the no-load flow rate, the no-load flow rate is calculated to obtain the no-load flow capacity, the liquid flows out of the pipeline where the flowmeter 2 is located, enters the speed regulating valve 1 through a third connector 18, then flows out of the throttling valve 10, continuously flows out of a fourth connector 17 through a third one-way valve 22, and returns to a hydraulic cylinder through the oil return pipe;
when the output pipe of the hydraulic pump is connected with the second connecting pipe 4 and the oil return pipe is connected with the first connecting pipe 3, liquid enters the speed regulating valve 1 through the fourth interface 17, flows out of the speed regulating valve 1 through the fourth one-way valve 23 and the second interface 15, passes through a section of C-shaped pipe and then enters a pipeline where the flowmeter 2 is located, the flowmeter 2 measures the no-load flow rate to obtain the idle flow capacity through calculation, the liquid flows out of the pipeline where the flowmeter 2 is located and then enters the speed regulating valve 1 through the third interface 18, then the liquid flows through the throttle valve 10 and then continuously flows out of the first interface 16 through the second one-way valve 21, and the liquid returns to the hydraulic cylinder through the oil return pipe.
It should be noted that the throttle valve 10 needs to be maintained in a maximum open state before use.
During measurement, the throttle valve 10 is in the maximum opening state, the embodiment is in the no-load state, the air carrying capacity is measured, then the throttle valve 10 is gradually closed, when the reading of the second pressure sensor 12 located on the side surface of the second interface 15 reaches the theoretical working pressure of the original load, the load flow at the moment is measured, the volume ratio can be obtained by comparing the ratio of the no-load flow and the load flow, and then whether the hydraulic pump is in the normal working state or not is judged. If the reading of the second pressure sensor 12 can not reach the original theoretical working pressure of the load through the throttle valve 10 and the flow rate is basically unchanged, the faults of other liquid path elements are judged, and the factors of the hydraulic pump are eliminated.
Through the technical scheme, the outlet of the flow meter 2 is connected with the inlet of the throttling valve 10, a stable pressure environment can be kept for measuring the flow rate when the flow meter 1 measures, and the throttling valve 10 is only used as a part for simulating a load without additionally adding a pressure balancing device.
As shown in fig. 3-4, the throttle valve 10 is provided with a knob 19, and the knob 19 is located above the governor valve 1.
When in use, the throttle valve 10 is installed inside the regulating valve 1, the upper end of the throttle valve 10 extends out of the upper end surface of the regulating valve 1, and the knob 19 is connected to the uppermost part of the throttle valve 10.
Through above-mentioned technical scheme, the choke valve is through the knob regulation load that sets up more the continuous variation operation of being convenient for, and the knob passes the speed governing valve and sets up in the speed governing valve top, operates when being convenient for use.
As a preferred embodiment, a cover plate 6 is arranged above the box body 5, the cover plate 6 is provided with a through hole for avoiding the knob 19, the cover plate 6 is connected with a liquid crystal display 7 and a pressure gauge 8, the liquid crystal display 7 is connected with a flow meter 2, and the pressure gauge 8 is connected with a first pressure sensor 11, a second pressure sensor 12, a third pressure sensor 13 and a fourth pressure sensor 14.
When the pressure measuring device is used, the cover plate 6 is buckled above the box body 5, the clearance hole of the knob 19 is formed in the cover plate 6, the liquid crystal display 7 is installed on the left side of the knob 19, the liquid crystal display 7 is electrically connected with the flowmeter 2, a test signal fed back by the flowmeter 2 is converted into a flow numerical value to be displayed on the liquid crystal display 7, the pressure gauge 8 is further installed on the left side of the liquid crystal display 7, and the pressure gauge 8 can be switched to display real-time pressure numerical values of the four pressure sensors.
Through above-mentioned technical scheme, can protect the inner structure of this application not expose outside on the one hand through apron 6, on the other hand through-hole, LCD 7 and the manometer 8 that set up on apron 6 can be audio-visual through knob 19 observation real-time detection result's change.
In a preferred embodiment, a cover 9 is disposed above the cover 6, and the cover 9 is hinged to the case 1.
Through above-mentioned technical scheme, the case lid that sets up can protect knob, LCD and manometer can not damage because of the collision in the transportation, has better protectiveness.
In a preferred embodiment, the range of the flowmeter 2 is 66L/min to 520L/min.
When in use, according to the investigation on the use condition of a plurality of hydraulic circuits, the flow adopted by the hydraulic circuit under the common working condition is in the range of 66L/min-520L/min.
Through the technical scheme, the cost of the flowmeter 2 can be controlled by selecting the commonly used flowmeter measuring range, and the method has economical efficiency.
In a preferred embodiment, the operating pressure of the speed control valve 1 is less than 40MPa.
When the device is used, according to the parameter statistics of the common liquid path load, the working pressure of most common liquid path load elements does not exceed 40MPa.
Through the technical scheme, a proper pressure range is defined, the cost of the embodiment is controlled, and the method has economical efficiency.
To sum up, the embodiment of the utility model provides a hydraulic pressure governing valve group has following advantage at least:
1. the structure is simple;
2. the structure has little influence on the measured value and the measurement precision is high;
3. the operation is convenient, the output pipe and the oil return pipe of the hydraulic pump can be randomly connected into the embodiment without influencing the measurement result;
4. has wide application range and high economic efficiency.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The utility model provides a hydraulic pressure speed governing valves, includes box (5), its characterized in that, speed governing valve (1) is connected in box (5), first interface (16), second interface (15), third interface (18) and fourth interface (17) have been seted up in speed governing valve (1), fourth interface (17) are connected with third check valve (22) and fourth check valve (23), third check valve (22) are connected with choke valve (10) and second check valve (21), the entry of choke valve (10) is connected with flowmeter (2) through third interface (18), flowmeter (2) are connected with second interface (15), second interface (15) are connected with first check valve (20) and fourth check valve (23), first interface (16) are connected with first check valve (20) and second check valve (21), first interface (16) side is connected with first pressure sensor (11), second interface (15) side is connected with second pressure sensor (12), third interface (18) side is connected with fourth pressure sensor (13), fourth interface (17) are connected with pressure sensor (13).
2. Hydraulic speed valve group according to claim 1, characterised in that the throttle valve (10) is provided with a knob (19), said knob (19) being located above the speed valve (1).
3. The hydraulic speed regulating valve group according to claim 2, wherein a cover plate (6) is arranged above the box body (5), a through hole for avoiding the knob (19) is formed in the cover plate (6), the cover plate (6) is connected with a liquid crystal display (7) and a pressure gauge (8), the liquid crystal display (7) is connected with the flowmeter (2), and the pressure gauge (8) is connected with a first pressure sensor (11), a second pressure sensor (12), a third pressure sensor (13) and a fourth pressure sensor (14).
4. The group according to claim 3, characterized in that a cover (9) is arranged above the cover plate (6), said cover (9) being hinged to the box (5).
5. The hydraulic governor valve group of claim 1, characterized in that the range of the flow meter (2) is 66-520L/min.
6. Hydraulic speed valve group according to claim 1, characterised in that the service pressure of the speed valve (1) is less than 40MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222848563.9U CN218624805U (en) | 2022-10-27 | 2022-10-27 | Hydraulic speed regulating valve group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222848563.9U CN218624805U (en) | 2022-10-27 | 2022-10-27 | Hydraulic speed regulating valve group |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218624805U true CN218624805U (en) | 2023-03-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222848563.9U Active CN218624805U (en) | 2022-10-27 | 2022-10-27 | Hydraulic speed regulating valve group |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218624805U (en) |
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2022
- 2022-10-27 CN CN202222848563.9U patent/CN218624805U/en active Active
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