Efficient hydraulic device

Abstract

The utility model provides an efficient hydraulic device, which relates to the field of hydraulic devices, and comprises a base, the rear end of the top of the base is fixedly connected with an oil tank, the front end of the top of the oil tank is fixedly connected with an oil return filter, the right side of the top of the base is provided with a motor, and the front surface of the motor is provided with a plunger pump plug; the oil tank is used for storing lubricating oil, the oil return filter is used for filtering hydraulic oil in a high-pressure pipeline, coarse impurities are prevented from entering the electromagnetic valve and the oil cylinder, the motor is used for providing a power source for operation of all elements, and the plunger pump plug and the gear pump are used for controlling flowing of oil. The first filter and the second filter are arranged and used for filtering impurities in oil, the energy accumulator is used for supplementing oil to a system pipeline and reducing pipeline pressure fluctuation, and the cooler is arranged and used for cooling backflow oil, so that the oil can flow back to the oil tank after being filtered by the oil return filter.

Description

Technical Field

[0001] The utility model belongs to the field of hydraulic devices, in particular to a high-efficiency hydraulic device. Background Art

[0002] The cylinder hydraulic system is a common hydraulic transmission system. It uses hydraulic oil as the working medium and realizes linear motion through the hydraulic cylinder. The hydraulic system has many application fields and can be applied to hydrogen compression. At the same time, the hydraulic system applied to hydrogen compression is also suitable for other gas compression such as air, nitrogen, water vapor, natural gas and other hydraulic systems with similar working conditions.

[0003] Hydrogen compression uses hydraulics as the driving power source to re-pressurize hydrogen with a certain pressure. When the pressure exceeds the pressure at the outlet, the rated exhaust volume is reached. For this reason, we have invented a hydraulic system that can be applied to this working condition. This type of device works stably, safely and reliably, and uses double-acting cylinders for higher efficiency.

[0004] In summary, the utility model therefore provides a high-efficiency hydraulic device to solve the above-mentioned problems. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0006] A high-efficiency hydraulic device comprises a base, wherein the rear end of the top of the base is fixedly connected to an oil tank, the front end of the top of the oil tank is fixedly connected to an oil return filter, a motor is arranged on the right side of the top of the base, a column pump plug is arranged on the front side of the motor, the output shaft of the motor is drivingly connected to the column pump plug, a gear pump is arranged on the front side of the column pump plug, a second filter is arranged on the left side of the gear pump, a first filter is arranged on the left side of the gear pump and behind the second filter, a second one-way valve is arranged on the front side of the first filter, an accumulator is fixedly connected to the left side of the front side of the oil tank, a cooler is fixedly connected to the left side of the front end of the top of the base, the output pipe of the cooler is fixedly connected to the oil return filter, an oil cylinder is fixedly connected to the left side of the front end of the top of the base, and a junction box is fixedly connected to the left side at the center of the top of the base.

[0007] Furthermore, in the utility model, a liquid level gauge is provided at the upper end of the left side of the oil tank, a liquid level switch is provided on the right side of the top of the oil tank, a breathable cap is provided on the left side of the top of the oil tank, a thermometer is provided at the lower end of the left side of the oil tank, and a double-branch thermal resistor is provided on the right side of the oil tank.

[0008] Furthermore, in the utility model, a stop valve is arranged on the right side of the cooler, and a shock-absorbing throat is arranged on the front side of the stop valve.

[0009] Furthermore, in the utility model, a bell-shaped cover is fixedly connected to the surface of the motor, and the bottom of the bell-shaped cover is fixedly connected to the top of the base.

[0010] Furthermore, in the utility model, a first overflow valve is provided on one side of the gear pump, a pressure gauge is provided on the back of the first overflow valve, a first one-way valve is provided on the left side of the pressure gauge, and a second overflow valve is provided on one side of the pressure gauge.

[0011] Furthermore, in the utility model, a pressure sensor is arranged on the left side of the front end of the top of the base, a solenoid valve is arranged on the top of the pressure sensor, a safety valve is arranged on the left side of the cooler, a first ball valve is arranged at the bottom of the oil tank, a second ball valve is arranged on the front of the base, and an oil cylinder is arranged on the top of the solenoid valve.

[0012] Beneficial effects: The utility model has the following beneficial effects:

[0013] The utility model provides a base for supporting and fixing the components on the top to improve the stability of each component when in use, provides an oil tank for storing lubricating oil, provides an oil return filter for filtering the hydraulic oil in the high-pressure pipeline to prevent coarser impurities from entering the solenoid valve and the oil cylinder, provides a motor for providing a power source for the operation of each component, provides a column pump plug and a gear pump for controlling the flow of oil, provides a first filter and a second filter for filtering impurities in the oil, an accumulator for replenishing oil in the system pipeline to reduce pipeline pressure fluctuations, and provides a cooler for cooling the refluxed oil so that the oil can flow back to the oil tank after being filtered by the oil return filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a main structural schematic diagram of the utility model;

[0015] Figure 2 It is a schematic diagram of the top plan structure of the utility model;

[0016] Figure 3 It is a schematic diagram of the side planar structure of the utility model;

[0017] Figure 4 It is a schematic diagram of the main plane structure of the utility model.

[0018] In the figure:

[0019] 1. Base; 2. Oil tank; 3. Liquid level gauge; 4. Liquid level switch; 5. Breathing cap; 6. Return oil filter; 7. Thermometer; 8. Double-branch thermal resistor; 9. Stop valve; 10. Shock absorber throat; 11. Motor; 12. Bell jar; 13. Column pump plug; 14. Gear pump; 15. First relief valve; 16. Pressure gauge; 17. First non-return valve; 18. First filter; 19. Second relief valve; 20. Second filter; 21. Pressure sensor; 22. Solenoid valve; 23. Safety valve; 24. Accumulator; 25. Cooler; 26. First ball valve; 27. Second ball valve; 28. Second non-return valve; 29. ​​Oil cylinder; 30. Junction box. DETAILED DESCRIPTION

[0020] In order to better understand the technical content of the utility model, specific embodiments are cited and described as follows in conjunction with the accompanying drawings. In this disclosure, various aspects of the utility model are described with reference to the accompanying drawings, and many illustrative embodiments are shown in the accompanying drawings. The embodiments of the present disclosure are not necessarily defined to include all aspects of the utility model. It should be understood that the various concepts and embodiments introduced above, as well as those described in more detail below, can be implemented in any of many ways, because the concepts and embodiments disclosed in the utility model are not limited to any implementation method. In addition, some aspects disclosed in the utility model can be used alone, or used in any appropriate combination with other aspects disclosed in the utility model.

[0021] Example 1

[0022] like Figure 1-4 As shown, it is the first embodiment of the utility model, which provides a high-efficiency hydraulic device, including a base 1, a fuel tank 2 is fixedly connected to the rear end of the top of the base 1, a return oil filter 6 is fixedly connected to the front end of the top of the fuel tank 2, a motor 11 is arranged on the right side of the top of the base 1, a column pump plug 13 is arranged on the front of the motor 11, the output shaft of the motor 11 is transmission-connected to the column pump plug 13, a gear pump 14 is arranged on the front end of the column pump plug 13, a second filter 20 is arranged on the left side of the gear pump 14, a first filter 18 is arranged on the left side of the gear pump 14 and behind the second filter 20, a second one-way valve 28 is arranged on the front of the first filter 18, an accumulator 24 is fixedly connected to the left side of the front end of the fuel tank 2, a cooler 25 is fixedly connected to the left side of the top front end of the base 1, the output pipe of the cooler 25 is fixedly connected to the return oil filter 6, an oil cylinder 29 is fixedly connected to the left side of the top front end of the base 1, and a junction box 30 is fixedly connected to the left side at the center of the top of the base 1.

[0023] like Figure 1-4As shown, the base 1 is used to support and fix the components on the top to improve the stability of each component when in use, the oil tank 2 is used to store lubricating oil, the return oil filter 6 is used to filter the hydraulic oil in the high-pressure pipeline to prevent coarser impurities from entering the solenoid valve 22 and the cylinder 29, the motor 11 is used to provide a power source for the operation of each component, the column pump plug 13 and the gear pump 14 are used to control the flow of oil, the first filter 18 and the second filter 20 are used to filter impurities in the oil, the accumulator 24 is used to replenish oil in the system pipeline to reduce pipeline pressure fluctuations, and the cooler 25 is used to cool the reflux oil so that the oil can be filtered by the return oil filter 6 and then flow back to the oil tank 2.

[0024] Example 2

[0025] Reference Figure 1 and 2 , which is the second embodiment of the utility model, and this embodiment is based on the previous embodiment.

[0026] In this embodiment, a liquid level meter 3 is provided at the upper end of the left side of the oil tank 2, a liquid level switch 4 is provided on the right side of the top of the oil tank 2, a breathable cap 5 is provided on the left side of the top of the oil tank 2, a thermometer 7 is provided at the lower end of the left side of the oil tank 2, and a double-branch thermal resistor 8 is provided on the right side of the oil tank 2.

[0027] A stop valve 9 is provided on the right side of the cooler 25 , and a shock-absorbing throat 10 is provided on the front side of the stop valve 9 .

[0028] A bell-shaped cover 12 is fixedly connected to the surface of the motor 11 , and the bottom of the bell-shaped cover 12 is fixedly connected to the top of the base 1 .

[0029] like Figure 1 and 2 As shown, the liquid level meter 3 and the liquid level switch 4 cooperate to observe the oil amount inside the oil tank 2, the thermometer 7 is used to display the temperature inside the oil tank 2, the stop valve 9 is used to control the flow of oil in the pipeline, and the bell cover 12 is used to fix the motor 11 to improve the stability of the motor 11 when in use.

[0030] Example 3

[0031] Reference Figure 2-4 , which is the third embodiment of the utility model, and this embodiment is based on the previous two embodiments.

[0032] In this embodiment, a first overflow valve 15 is provided on one side of the gear pump 14 , a pressure gauge 16 is provided on the back of the first overflow valve 15 , a first check valve 17 is provided on the left side of the pressure gauge 16 , and a second overflow valve 19 is provided on one side of the pressure gauge 16 .

[0033] A pressure sensor 21 is arranged on the left side of the top front end of the base 1, a solenoid valve 22 is arranged on the top of the pressure sensor 21, a safety valve 23 is arranged on the left side of the cooler 25, a first ball valve 26 is arranged at the bottom of the oil tank 2, a second ball valve 27 is arranged on the front of the base 1, and an oil cylinder 29 is arranged on the top of the solenoid valve 22.

[0034] like Figure 2-4 As shown, the first overflow valve 15, the first check valve 17, the second overflow valve 19, the pressure sensor 21, the solenoid valve 22 and the safety valve 23 are used to control the flow of oil in the pipeline, and the pressure sensor 21 and the pressure gauge 16 are used to detect and display the pressure in the pipeline.

[0035] When in use, when the pipeline is under normal pressure, the solenoid valve 22 flow valve is in a power-off state, and the pumped oil will flow directly back to the oil tank 2. When the pipeline is under pressure, the solenoid valve 22 flow valve is in a power-on state, and the second relief valve 19 intervenes. When the pipeline pressure reaches the set pressure, the accumulator 24 is filled with oil, and the solenoid valve 22 is switched to the left position. At this time, the pressure oil enters the left chamber of the oil cylinder 29, pushing the piston of the oil cylinder 29 to move to the right, providing power for the cylinder installed on the right side, and switching the solenoid valve 22 to the right position. At this time, the pressure oil enters the right chamber of the oil cylinder 29, pushing the piston of the oil cylinder 29 to move to the left, providing power for the cylinder installed on the left side, thereby realizing the reciprocating motion of the double-acting oil cylinder 29. The return oil filter 6 can filter the hydraulic oil in the high-pressure pipeline to prevent coarser impurities from entering the solenoid valve 22 and the oil cylinder 29. When the liquid level switch 4 sends a signal, a fault alarm is issued, and the motor 11 stops working. When the low oil level alarm sends a signal, a fault alarm is issued, and the motor 11 stops working.

[0036] The standard parts used in this application document can all be purchased from the market and can be customized according to the description in the specification and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art. The control method is automatic control through a controller. The control circuit of the controller can be implemented through simple programming by technicians in this field, which is common knowledge in the field. This application is mainly used to protect mechanical devices, so this application no longer explains the control method and circuit connection in detail.

[0037] Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. A person with ordinary knowledge in the technical field to which the present invention belongs may make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be determined by the definition of the claims.

Claims

1. A high-efficiency hydraulic device, comprising a base (1), characterized in that: The rear end of the top of the base (1) is fixedly connected to an oil tank (2), the front end of the top of the oil tank (2) is fixedly connected to an oil return filter (6), a motor (11) is arranged on the right side of the top of the base (1), a column pump plug (13) is arranged on the front side of the motor (11), the output shaft of the motor (11) is drivingly connected to the column pump plug (13), a gear pump (14) is arranged on the front side of the column pump plug (13), a second filter (20) is arranged on the left side of the gear pump (14), and a second filter (20) is arranged on the left side of the gear pump (14). A first filter (18) is arranged behind the filter (20), a second one-way valve (28) is arranged on the front of the first filter (18), an accumulator (24) is fixedly connected to the left side of the front of the oil tank (2), a cooler (25) is fixedly connected to the left side of the top front end of the base (1), an output pipe of the cooler (25) is fixedly connected to the return oil filter (6), an oil cylinder (29) is fixedly connected to the left side of the top front end of the base (1), and a junction box (30) is fixedly connected to the left side at the center of the top of the base (1).

2. The high-efficiency hydraulic device according to claim 1, characterized in that: A liquid level meter (3) is arranged at the upper end of the left side of the oil tank (2), a liquid level switch (4) is arranged at the right side of the top of the oil tank (2), a vent cap (5) is arranged at the left side of the top of the oil tank (2), a temperature meter (7) is arranged at the lower end of the left side of the oil tank (2), and a double-branch thermal resistor (8) is arranged at the right side of the oil tank (2).

3. The high-efficiency hydraulic device according to claim 1, characterized in that: A stop valve (9) is arranged on the right side of the cooler (25), and a shock-absorbing throat (10) is arranged on the front side of the stop valve (9).

4. The high-efficiency hydraulic device according to claim 1, characterized in that: A bell-shaped cover (12) is fixedly connected to the surface of the motor (11), and the bottom of the bell-shaped cover (12) is fixedly connected to the top of the base (1).

5. The high-efficiency hydraulic device according to claim 1, characterized in that: A first overflow valve (15) is provided on one side of the gear pump (14), a pressure gauge (16) is provided on the back of the first overflow valve (15), a first check valve (17) is provided on the left side of the pressure gauge (16), and a second overflow valve (19) is provided on one side of the pressure gauge (16).

6. The high-efficiency hydraulic device according to claim 1, characterized in that: A pressure sensor (21) is arranged on the left side of the front end of the top of the base (1), a solenoid valve (22) is arranged on the top of the pressure sensor (21), a safety valve (23) is arranged on the left side of the cooler (25), a first ball valve (26) is arranged at the bottom of the oil tank (2), a second ball valve (27) is arranged on the front of the base (1), and an oil cylinder (29) is arranged on the top of the solenoid valve (22).

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