Low-energy-consumption metering pump flow control hydraulic valve
By designing a low-energy-consumption quantitative pump flow control hydraulic valve, and utilizing a combination of valve block, solenoid directional valve, throttle valve and logic valve, the problems of high energy consumption and high cost in hydraulic systems are solved, achieving flexible flow control and safe equipment operation.
Patent Information
- Application Number
- CN202520249172.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-17
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2035-02-17
AI Technical Summary
Existing hydraulic systems suffer from high energy consumption and high cost, making it difficult to achieve variable and low-cost flow control.
A low-energy-consumption quantitative pump flow control hydraulic valve was designed, including a valve block, a solenoid directional valve, a throttle valve, a throttle plug, and a logic valve. Flow control is achieved through combinations of different states. A pressure sensor monitors the hydraulic oil pressure, the throttle valve adjusts the flow, and the logic valve returns the oil to the tank to prevent energy loss.
It enables flexible flow control, reduces energy consumption, minimizes component usage and costs, ensures safe equipment operation, and prevents system overheating.
Smart Images
Figure CN223690065U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to hydraulic component technical field, concretely relates to a low energy consumption quantitative pump flow control hydraulic valve. BACKGROUND
[0002] With the progress of China's industrial technology and the rapid development of hydraulic industry, more and more industries begin to use and promote hydraulic technology.
[0003] With the increasingly updated hydraulic technology, variable, low cost and low energy consumption become the goal pursued by various industries, and based on the above goal, the company develops a valve for controlling the flow of quantitative pump hydraulic system, which integrates the advantages of variable, low power consumption and low cost, and is widely used in the market. UTILITY MODEL CONTENTS
[0004] The utility model aims at providing a low energy consumption quantitative pump flow control hydraulic valve to solve the problems in the above background technology.
[0005] To achieve the above object, the utility model provides the following technical scheme, a low energy consumption quantitative pump flow control hydraulic valve, including valve block, electromagnetic reversing valve, throttle valve, throttle plug, logic valve;
[0006] The first channel and the second channel are arranged in the valve block, and the electromagnetic reversing valve is installed on the first channel;
[0007] The first branch, the second branch and the third branch are arranged on the second channel, and the throttle plug and the throttle valve are arranged on the first branch, the second branch and the third branch respectively;
[0008] The valve block has at least three states including a small flow state, a medium flow state and a large flow state;
[0009] When the valve block is in the small flow state, the electromagnetic reversing valve and the throttle valve are closed, and the throttle hole at the throttle plug in the first branch is communicated with the second discharge port;
[0010] When the valve block is in the medium flow state, the electromagnetic reversing valve is closed, and the throttle valve is opened, and the hydraulic oil discharged from the throttle valve and the throttle hole is discharged through the second discharge port;
[0011] When the valve block is in the large flow state, the electromagnetic reversing valve is opened.
[0012] Preferably, the electromagnetic reversing valve is used for controlling the opening and closing of the first channel.
[0013] Preferably, the first channel is provided with a first discharge port at the end.
[0014] Preferably, the throttle plug is provided with a throttle hole, and the throttle hole is connected with the second discharge port.
[0015] Preferably, the throttle valve is connected to the second discharge port on the side away from the oil inlet hole.
[0016] Preferably, the logic valve is connected to the oil tank on the end away from the oil inlet hole.
[0017] Preferably, the throttle valve has an adjusting function to adjust the flow of discharged hydraulic oil.
[0018] Preferably, the first channel and the second channel are both connected to the oil inlet hole, the oil inlet hole is arranged on the valve block, and the oil inlet hole is connected to the constant flow pump through an oil inlet pipe, the constant flow pump is connected to the motor, and the constant flow pump is used to input hydraulic oil into the valve block.
[0019] Preferably, the pressure sensor is inserted into the valve block, and the pressure sensor is used to measure the pressure value of the hydraulic oil entering the valve block.
[0020] Preferably, the electromagnetic reversing valve is located at the top of the valve block, the logic valve is located at the upper part of the valve block, the logic valve is located on one of the side walls of the valve block, the throttle valve is located at the upper part of the valve block, the pressure sensor is provided with two, and the two pressure sensors are located at the lower part and the top of the valve block, respectively.
[0021] Compared with the prior art, the utility model has the advantages that:
[0022] First, the first channel and the second channel are arranged in the valve block, the second channel is divided into a first branch, a second branch and a third branch, corresponding control valves are arranged on the first channel and the second channel, the use state can be flexibly adjusted according to needs, two pressure sensors are respectively installed on the first channel and the second channel, and the pressure of the hydraulic oil at the two channels is measured, so that the pressure of the hydraulic oil in the two channels can be monitored in real time.
[0023] Second, the logic valve is arranged in the utility model, excess hydraulic oil can be sent into the oil tank, energy loss is prevented to prevent the system from overheating, safe operation of equipment is ensured, corresponding valves can be opened when corresponding states are used, power consumption is small, fewer components are used, and cost is low. BRIEF DESCRIPTION OF DRAWINGS
[0024] Figure 1 It is a structure schematic view of the low-energy-consumption constant flow pump flow control hydraulic valve in the utility model.
[0025] Figure 2 It is a structure schematic view of the low-energy-consumption constant flow pump flow control hydraulic valve in the utility model.
[0026] Figure 3 It is a structure schematic view of the low-energy-consumption constant flow pump flow control hydraulic valve in the utility model. Figure 2 It is a sectional view of A-A in the utility model. It is a sectional view of A-A in the utility model.
[0027] Figure 4 The utility model discloses low energy consumption quantitative pump flow control hydraulic valve's hydraulic schematic diagram.
[0028] In the drawing: 100, valve block;200, electromagnetic reversing valve;300, throttle valve;400, throttle plug;500, pressure sensor;600, logic valve. DETAILED DESCRIPTION
[0029] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.
[0030] Referring to Figures 1-4 A low energy consumption quantitative pump flow control hydraulic valve, comprising a valve block 100, an electromagnetic reversing valve 200, a throttle valve 300, a throttle plug 400, a pressure sensor 500 and a logic valve 600;
[0031] The valve block 100 is provided with a first channel and a second channel, the first channel is P1, P2 channel shown in the figure, and the second channel is P1, P3 channel. Figure 4 The electromagnetic reversing valve 200 is installed on the first channel, and the electromagnetic reversing valve 200 is used to control the opening and closing of the first channel. Figure 4 The first channel is provided with a first discharge port at the end, that is, P2 marked in the figure.
[0032] The second channel is provided with a first branch, a second branch and a third branch, the throttle plug 400 is arranged on the first branch, the throttle valve 300 is arranged on the second branch, and the logic valve 600 is arranged on the third branch.
[0033] Specifically, the throttle plug 400 is provided with a throttle hole, and the throttle hole is in a normally open state. Figure 4 The throttle hole is connected with the second discharge port, that is, P3 shown in the figure.
[0034] The second discharge port is communicated with the side, away from the oil inlet hole, of the throttle valve 300.
[0035] The end, away from the oil inlet hole, of the logic valve 600 is connected with the oil tank.
[0036] The valve block 100 has at least three states including a small flow state, a medium flow state and a large flow state.
[0037] When the valve block 100 is in a small flow state, the electromagnetic reversing valve 200 and the throttle valve 300 are closed, and the throttle hole at the first branch inner throttle block 400 is communicated with the second discharge port; at this time, the hydraulic oil can be discharged from the second discharge port, and the excess hydraulic oil enters the oil tank through the logic valve 600;
[0038] When the valve block 100 is in a medium flow state, the electromagnetic reversing valve 200 is closed, and the throttle valve 300 is opened, and the throttle valve 300 has an adjusting function to adjust the discharged flow, and the hydraulic oil discharged from the throttle hole is discharged through the second discharge port after being combined;
[0039] When the valve block 100 is in a large flow state, the electromagnetic reversing valve 200 is opened, and the first channel is opened, at this time, the hydraulic oil is supplied to the outside through the first discharge port, and the flow is the largest and consistent with the input flow;
[0040] The first channel and the second channel are connected to the oil inlet hole, the oil inlet hole is arranged on the valve block 100, and the oil inlet hole is connected with the constant pump through the oil inlet pipe, the constant pump is connected with the motor, and the constant pump is used for inputting the hydraulic oil into the valve block 100 by converting other forms of energy into hydraulic energy;
[0041] The pressure sensor 500 is inserted into the valve block 100 and is used for measuring the pressure value of the hydraulic oil entering the valve block 100, and the pressure sensor 500 can be set as required.
[0042] The electromagnetic reversing valve 200 is located at the top of the valve block 100, the logic valve 600 is located on the upper part of the valve block 100, and the logic valve 600 is located on one of the side walls of the valve block 100, the throttle valve 300 is located on the upper part of the valve block 100, and the two pressure sensors 500 are arranged on the lower part and the top of the valve block 100.
[0043] Working principle:
[0044] The constant pump is connected with the engine or the motor, the engine or the motor works to convert mechanical energy or electrical energy into hydraulic energy, the constant pump is connected with P1, and high-pressure oil is provided for the hydraulic valve.
[0045] After the high-pressure oil enters the valve block 100, the high-pressure oil is decomposed into multiple paths through the internal oil channel of the valve block 100, one of which is controlled through the electromagnetic reversing valve 200, the electromagnetic reversing valve 200 is connected in series in the hydraulic pipeline, when the electromagnetic reversing valve 200 loses power, P1 to P2 oil circuit is disconnected; when the electromagnetic reversing valve 200 is powered, P1 to P2 is communicated, the valve block 100 supplies oil to the outside through P2, and the flow is the largest and consistent with the input flow.
[0046] When the device needs small flow, the hydraulic oil from P1 enters the interaction of electromagnetic reversing valve 200, throttle plug 400, throttle valve 300 and logic valve 600, and then provides hydraulic oil outward, and the specific conditions are as follows:
[0047] When the device needs small flow (small flow state), the electromagnetic reversing valve 200 is powered off, the throttle valve 300 is closed, the hydraulic oil enters through P1, then passes through the throttle plug 400, and is output by P3, at this time the flow is the minimum flow output by the valve block 100; the excess flow is discharged into the oil tank through the logic valve 600, so as to prevent energy loss from causing the system to overheat and ensure the safe operation of the device; at this time, except that the throttle plug 400 is in series with the high-pressure oil circuit, the rest of the valves are in parallel with the high-pressure oil circuit.
[0048] When the device needs flow between the minimum flow and the input flow (medium flow state), the electromagnetic reversing valve 200 is powered off, the throttle valve 300 is opened to a certain angle according to the device requirement, at this time the hydraulic oil enters from P1, passes through the throttle plug 400 and the throttle valve 300, and then converges to output the hydraulic oil outward through P3, and the excess hydraulic oil is returned to the oil tank through the logic valve 600, so as to prevent energy loss from causing the system to overheat.
[0049] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.
Claims
1. A low energy consumption constant displacement pump flow control hydraulic valve characterized by, The valve block (100), the electromagnetic reversing valve (200), the throttle valve (300), the throttle plug (400), and the logic valve (600) are included. The first channel and the second channel are arranged in the valve block (100), and the electromagnetic reversing valve (200) is arranged on the first channel. The first branch, the second branch, and the third branch are arranged on the second channel, and the throttle plug (400) and the throttle valve (300) are arranged on the first branch, the second branch, and the third branch, respectively. The valve block (100) has at least three states including a small flow state, a medium flow state, and a large flow state. When the valve block (100) is in the small flow state, the electromagnetic reversing valve (200) and the throttle valve (300) are closed, and the throttle hole at the throttle plug (400) in the first branch is communicated with the second discharge port. When the valve block (100) is in the medium flow state, the electromagnetic reversing valve (200) is closed, the throttle valve (300) is opened, and the hydraulic oil discharged from the throttle valve (300) and the throttle hole is discharged through the second discharge port. When the valve block (100) is in the large flow state, the electromagnetic reversing valve (200) is opened.
2. The low energy positive displacement pump flow control hydraulic valve of claim 1, wherein, The electromagnetic reversing valve (200) is used to control the opening and closing of the first channel.
3. A low energy consumption constant displacement pump flow control hydraulic valve according to claim 2, wherein, The first discharge port is arranged at the end of the first channel.
4. The low energy positive displacement pump flow control hydraulic valve of claim 1, wherein, The throttle plug (400) is arranged with a throttle hole connected with the second discharge port.
5. The low energy positive displacement pump flow control hydraulic valve of claim 1, wherein, The side of the throttle valve (300) away from the oil inlet hole is communicated with the second discharge port.
6. A low energy positive displacement pump flow control hydraulic valve according to claim 1, wherein, The logic valve (600) is connected with the oil tank at the end away from the oil inlet hole.
7. The low energy positive displacement pump flow control hydraulic valve of claim 1, wherein, The throttle valve (300) has an adjusting function to adjust the flow of the discharged hydraulic oil.
8. The low energy positive displacement pump flow control hydraulic valve of claim 1, wherein, The first channel and the second channel are connected with the oil inlet hole arranged on the valve block (100), and the oil inlet hole is connected with the constant displacement pump through an oil inlet pipe, the constant displacement pump is connected with the motor, and the constant displacement pump is used to input hydraulic oil into the valve block (100).
9. The low energy positive displacement pump flow control hydraulic valve of claim 1, wherein, The pressure sensor (500) is arranged on the valve block (100), and the pressure sensor (500) is used to measure the pressure value of the hydraulic oil entering the valve block (100).
10. A low energy consumption constant-displacement pump flow control hydraulic valve according to claim 9, characterized in that, The electromagnetic reversing valve (200) is arranged on the top of the valve block (100), the logic valve (600) is arranged on the upper part of the valve block (100), and the logic valve (600) is arranged on one side wall of the valve block (100), the throttle valve (300) is arranged on the upper part of the valve block (100), the pressure sensor (500) is arranged in two, and the two pressure sensors (500) are arranged on the lower part and the top of the valve block (100), respectively.