Vehicle-mounted integrated hydraulic power source equipment

Abstract

The utility model discloses vehicle-mounted integrated hydraulic power source equipment which comprises an oil tank frame, a mounting frame is arranged in the middle of the oil tank frame, a stainless steel oil tank is mounted on one side of the top end of the mounting frame, and an air filter is mounted at the top of the stainless steel oil tank. An outer circulation inlet pipe, an outer circulation outlet pipe and an oil meter are installed on the front face of the stainless steel oil tank. Under the condition that an original equipment oil way is not changed, the commercial power is used for providing oil source power, and the functions of power supply, unlocking pressure reduction, oil cleaning, emergency guarantee and the like are completed at the same time.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle-mounted oil sources, in particular to a vehicle-mounted integrated hydraulic power source device. Background Art

[0002] Hydraulic is a term used in the mechanical and electromechanical industries. Hydraulic can be used as a power transmission method, which is called hydraulic transmission. Hydraulic can also be used as a control method, which is called hydraulic control.

[0003] A complete hydraulic system consists of five parts, namely, energy device, actuator, control and adjustment device, auxiliary device, and liquid medium. Hydraulics are widely used in industry and civil industries due to its characteristics of large power transmission, easy transmission and configuration. The function of the actuator (hydraulic cylinder and hydraulic motor) of the hydraulic system is to convert the pressure energy of the liquid into mechanical energy, so as to obtain the required linear reciprocating motion or rotary motion. The function of the energy device (hydraulic pump) of the hydraulic system is to convert the mechanical energy of the prime mover into the pressure energy of the liquid.

[0004] Currently, most vehicle-mounted hydraulic oil sources are powered by the engine, which places high demands on the engine under special circumstances and consumes engine reserves.

[0005] Therefore, how to provide a vehicle-mounted integrated hydraulic power source device to solve the problems existing in the prior art is of great significance to its application. Utility Model Content

[0006] In view of this, the purpose of this application is to provide a vehicle-mounted integrated hydraulic power source device to solve the problem.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A vehicle-mounted integrated hydraulic power source device comprises a tank rack, a mounting rack is arranged in the middle of the tank rack, a stainless steel tank is mounted on one side of the top of the mounting rack, an air filter is mounted on the top of the stainless steel tank, an external circulation inlet pipe, an external circulation outlet pipe and an oil gauge are mounted on the front of the stainless steel tank, a liquid level sensor and an oil temperature sensor are mounted inside the stainless steel tank, a three-phase asynchronous motor is mounted at the bottom of the tank rack, an output shaft of the three-phase asynchronous motor is connected to a double oil pump through a coupling, a bell-shaped cover is arranged on the outside of the coupling, a shell is mounted on the outer surface of the tank rack, an oil circuit board and an oscilloscope are mounted on the top of the shell, and the oil circuit board comprises an oil extraction pipeline and an oil return pipeline;

[0009] On the other side of the top of the mounting frame, an upper oil pan is installed. On the top of the upper oil pan, two valve blocks are installed. On the top of one of the valve blocks, a pressure gauge with switch, a low-pressure overflow valve, and an electromagnetic directional control valve are installed; on the top of the other valve block, a high-pressure overflow valve, a high-pressure unloading solenoid valve, and a digital display flowmeter are installed. On one side of the bottom of the mounting frame, a filter mounting plate is installed. At the bottom of the filter mounting plate, a high-pressure filter is installed. The high-pressure filter includes an oil return filter and an oil pumping filter.

[0010] Preferably, the double-pump includes an oil pumping gear pump and an oil return gear pump. The oil pumping pipeline of the oil circuit board is connected to the liquid inlet end of the oil pumping gear pump in the double-pump. A filter is installed at the liquid inlet end of the oil pumping gear pump in the double-pump. The liquid outlet end of the double-pump is connected to the oil pumping filter. The liquid outlet end of the oil pumping filter is connected to the liquid inlet end of the high-pressure unloading solenoid valve. And the pressure gauge with switch and the high-pressure overflow valve are installed between the connection pipeline of the oil pumping filter and the high-pressure unloading solenoid valve.

[0011] Preferably, the liquid outlet end of the high-pressure unloading solenoid valve is connected to the oil circuit board. The oil return pipeline of the oil circuit board is connected to the oil inlet end of the electromagnetic directional control valve.

[0012] Preferably, a low-pressure overflow valve I is installed at the oil inlet end of the electromagnetic directional control valve. The oil outlet end of the electromagnetic directional control valve is connected to the liquid inlet end of the low-pressure overflow valve II. The liquid outlet end of the low-pressure overflow valve II is connected to the oil inlet end of the check valve through the oil return filter. The oil outlet end of the check valve is connected to the oil inlet end of the oil return gear pump in the double-pump.

[0013] Preferably, an oil pumping gear pump is installed at the liquid inlet end of the oil pumping filter. A digital display flowmeter is installed at the liquid outlet end of the oil pumping filter. The oil pumping filter is also connected to a pressure gauge.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] 1. Without changing the original equipment oil circuit, the utility model uses the commercial power to provide the oil source power, and simultaneously completes functions such as power supply, unlocking and decompression, oil cleaning, and emergency guarantee.

[0016] 2. The hydraulic valves, pressure gauges, high-pressure filters, oil return filters, and pipelines are all arranged above the oil pan, which is convenient for the recovery of leaked oil during maintenance and disassembly.

[0017] 3. The pressure gauges are all arranged near the pressure regulating valve, which is convenient for observation during pressure regulation and testing.

[0018] 4. The pressure gauges adopt digital type and have the function of high and low pressure setting. The pressure always remains within the unlocking pressure range, avoiding the increase of oil temperature caused by the long-term high-pressure oil supply of the small pump.

[0019] 5. Both the high-pressure oil filter and the return oil filter are equipped with obvious visual blockage alarm devices, which are convenient for operators to observe and replace the filter element in a timely manner; liquid level and oil temperature indicators are set at obvious positions in the front part of the fuel tank, which are convenient for observing the liquid level and oil temperature.

[0020] The above description is only an overview of the technical solution of this application. In order to be able to understand the technical means of this application more clearly, so as to be implemented in accordance with the content of the specification, and in order to make the above and other purposes, features and advantages of this application more obvious and understandable, the following takes the preferred embodiments of this application and combines with the accompanying drawings to describe in detail as follows.

[0021] According to the following detailed description of the specific embodiments of this application in combination with the accompanying drawings, those skilled in the art will understand the above and other purposes, advantages and features of this application more clearly. Brief Description of the Drawings

[0022] In order to more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of this application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts do not necessarily draw according to the actual scale.

[0023] Figure 1 It is a structural schematic diagram of the present utility model;

[0024] Figure 2 It is a schematic diagram of the hydraulic system of the present utility model;

[0025] Figure 3 It is a control table of the hydraulic system of the present utility model.

[0026] In the figure: 1. Stainless steel fuel tank; 2. Air filter; 3. Oil level gauge; 4. Oil filter; 5. Three-phase asynchronous motor; 6. Double-pump; 7. Check valve; 8. High-pressure filter; 9. Pressure gauge with switch; 10. High-pressure relief valve; 11. Second low-pressure relief valve; 12. High-pressure unloading solenoid valve; 13. Electro-hydraulic directional valve; 14. First low-pressure relief valve; 15. Oil circuit board; 16. Return oil filter; 17. Suction oil filter; 18. Pressure gauge; 19. Suction oil gear pump; 20. Digital display flowmeter; 21. Outer circulation inlet pipe; 22. Outer circulation outlet pipe; 23. Bell-shaped cover; 24. Fuel tank rack; 25. Upper oil pan; 26. Filter mounting plate; 27. Oscilloscope. Detailed Description of the Specific Embodiments

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are some, but not all, of the embodiments of this application. In the following description, specific details such as specific configurations and components are provided only to assist in a comprehensive understanding of the embodiments of this application. Therefore, those skilled in the art should understand that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of this application. Additionally, descriptions of known functions and structures are omitted in the embodiments for clarity and conciseness.

[0028] In addition, this application may repeat reference numerals and / or letters in different instances. This repetition is for the purpose of simplicity and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed.

[0029] The term "and / or" in this document is merely a description of the associated relationship between associated objects, indicating that three relationships may exist. For example, A and / or B may represent: A exists alone, B exists alone, and both A and B exist simultaneously. The term " / and" in this document describes another associated object relationship, indicating that two relationships may exist. For example, A / and B may represent: A exists alone, and both A and B exist. Additionally, the character " / " in this document generally indicates that the associated objects before and after are in an "or" relationship.

[0030] It should also be noted that in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variation thereof are intended to cover a non-exclusive inclusion.

[0031] Please refer to Figure 1-2 , this invention provides a technical solution for an on-vehicle integrated hydraulic power source device: An on-vehicle integrated hydraulic power source device includes an oil tank rack 24. An installation rack is provided in the middle of the oil tank rack 24. On one side of the top of the installation rack, a stainless-steel oil tank 1 is installed. An air filter 2 is installed on the top of the stainless-steel oil tank 1. An external circulation inlet pipe 21, an external circulation outlet pipe 22, and an oil level gauge 3 are installed on the front of the stainless-steel oil tank 1. A liquid level sensor and an oil temperature sensor are installed inside the stainless-steel oil tank 1. A three-phase asynchronous motor 5 is installed at the bottom of the oil tank rack 24. The output shaft of the three-phase asynchronous motor 5 is connected by a coupling to a double-pump 6. A bell-shaped cover 23 is provided outside the coupling. A housing is installed on the outer surface of the oil tank rack 24. An oil circuit board 15 and an oscilloscope 27 are installed at the top of the housing. The oil circuit board 15 includes an oil extraction pipeline and an oil return pipeline;

[0032] On the other side of the top of the mounting frame, an upper oil pan 25 is installed. On the top of the upper oil pan 25, two valve blocks are installed. On the top of one of the valve blocks, a pressure gauge with switch 9, a second low-pressure overflow valve 11, and an electromagnetic directional control valve 13 are installed; on the top of the other valve block, a high-pressure overflow valve 10, a high-pressure unloading solenoid valve 12, and a digital display flowmeter 20 are installed. On one side of the bottom of the mounting frame, a filter mounting plate 26 is installed. At the bottom of the filter mounting plate 26, a high-pressure filter 8 is installed. The high-pressure filter 8 includes an oil return filter 16 and an oil pumping filter 17;

[0033] A liquid level switch is set in the fuel tank. When the liquid level is lower than the set value of the liquid level switch, the oil pump motor automatically stops; the oil suction port of the oil pump is set 50 mm from the bottom of the fuel tank to ensure that the oil suction port of the oil pump is always higher than the lower limit of the liquid level, and there is no obstruction near the oil pump, which is convenient for the disassembly and replacement of the oil pump;

[0034] The pressure gauge with switch 9, the second low-pressure overflow valve 11, the electromagnetic directional control valve 13, the high-pressure overflow valve 10, the high-pressure unloading solenoid valve 12, and the digital display flowmeter 20 are all set above the oil pan, which is convenient for the recovery of leaked oil during maintenance and disassembly;

[0035] The pressure gauges are all set near the pressure regulating valve, which is convenient for observation during pressure regulation and testing;

[0036] The pressure gauges are digital and have the function of setting high and low pressures;

[0037] The pressure is always maintained within the unlocking pressure range to avoid the oil temperature rising due to the long-term high-pressure oil supply of the small pump;

[0038] Both the high-pressure oil filter and the oil return filter have obvious visual blockage alarm devices, which are convenient for operators to observe and replace the filter element in time; Liquid level and oil temperature indicators are set at obvious positions in the front of the fuel tank, which are convenient for observing the liquid level and oil temperature.

[0039] The double-pump oil pump 6 includes an oil pumping gear pump 19 and an oil return gear pump. The oil pumping pipeline of the oil circuit board 15 is connected to the liquid inlet end of the oil pumping gear pump 19 in the double-pump oil pump 6. A filter 4 is installed at the liquid inlet end of the oil pumping gear pump 19 in the double-pump oil pump 6. The liquid outlet end of the double-pump oil pump 6 is connected to the oil pumping filter 17. The liquid outlet end of the oil pumping filter 17 is connected to the liquid inlet end of the high-pressure unloading solenoid valve 12. And the pressure gauge with switch 9 and the high-pressure overflow valve 10 are installed between the connecting pipeline of the oil pumping filter 17 and the high-pressure unloading solenoid valve 12.

[0040] The liquid outlet end of the high-pressure unloading solenoid valve 12 is connected to the oil circuit board 15. The oil return pipeline of the oil circuit board 15 is connected to the oil inlet end of the electromagnetic directional control valve 13.

[0041] A low-pressure overflow valve 14 is installed at the oil inlet end of the electromagnetic reversing valve 13. The oil outlet end of the electromagnetic reversing valve 13 is connected to the liquid inlet end of the low-pressure overflow valve 11. The liquid outlet end of the low-pressure overflow valve 11 is connected to the oil inlet end of the check valve 7 through an oil return filter 16. The oil outlet end of the check valve 7 is connected to the oil inlet end of the oil return gear pump in the double-pump 6.

[0042] A pumping oil filter 17 is installed with a pumping gear pump 19 at its liquid inlet end, a digital display flowmeter 20 at its liquid outlet end, and the pumping oil filter 17 is also connected with a pressure gauge 18.

[0043] During specific use, start the three-phase asynchronous motor 5. The three-phase asynchronous motor 5 drives the double-pump 6 to start through a coupling. At this time, the oil starts to be pumped. The oil passes through the pumping oil filter 17, the high-pressure unloading solenoid valve 12 and then reaches the load end. The oil at the load end enters the oil return filter 16 through the low-pressure overflow valve 14 and the low-pressure overflow valve 11, and then is transported to the fuel tank through the oil return gear pump. The utility model uses a motor as the drive, with good flexibility.

[0044] The above are only the preferred embodiments of the present invention, and it does not limit the protection scope of the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any changes, modifications, substitutions, integrations, and parameter changes made to these embodiments by means of conventional substitutions or capable of achieving the same functions without departing from the principle and spirit of the present invention fall within the protection scope of the present invention.

Claims

1. An in-vehicle integrated hydraulic power source device, characterized in that: It includes a fuel tank rack (24). An installation rack is provided in the middle of the fuel tank rack (24). On one side of the top of the installation rack, a stainless-steel fuel tank (1) is installed. An air filter (2) is installed on the top of the stainless-steel fuel tank (1). An external circulation inlet pipe (21), an external circulation outlet pipe (22) and an oil level gauge (3) are installed on the front of the stainless-steel fuel tank (1). A liquid level sensor and an oil temperature sensor are installed inside the stainless-steel fuel tank (1). A three-phase asynchronous motor (5) is installed at the bottom of the fuel tank rack (24). The output shaft of the three-phase asynchronous motor (5) is connected to a double-pump (6) through a coupling. A bell-shaped cover (23) is provided outside the coupling. The outer surface of the fuel tank rack (24) is installed with a housing. An oil circuit board (15) and an oscilloscope (27) are installed at the top of the housing. The oil circuit board (15) includes an oil pumping pipeline and an oil return pipeline; On the other side of the top of the installation rack, an oil feeding tray (25) is installed. Two valve blocks are installed at the top of the oil feeding tray (25). On the top of one of the valve blocks, a pressure gauge with switch (9), a low-pressure relief valve II (11) and an electromagnetic directional valve (13) are installed; on the top of the other valve block, a high-pressure relief valve (10), a high-pressure unloading solenoid valve (12) and a digital display flowmeter (20) are installed. On one side of the bottom of the installation rack, a filter mounting plate (26) is installed. A high-pressure filter (8) is installed at the bottom of the filter mounting plate (26). The high-pressure filter (8) includes an oil return filter (16) and an oil pumping filter (17).

2. The on-vehicle integrated hydraulic power source device according to claim 1, characterized in that: The double-pump (6) includes an oil pumping gear pump (19) and an oil return gear pump. The oil pumping pipeline of the oil circuit board (15) is connected to the liquid inlet end of the oil pumping gear pump (19) in the double-pump (6). A filter (4) is installed at the liquid inlet end of the oil pumping gear pump (19) in the double-pump (6). The liquid outlet end of the double-pump (6) is connected to the oil pumping filter (17). The liquid outlet end of the oil pumping filter (17) is connected to the liquid inlet end of the high-pressure unloading solenoid valve (12). And the pressure gauge with switch (9) and the high-pressure relief valve (10) are installed between the connecting pipeline of the oil pumping filter (17) and the high-pressure unloading solenoid valve (12).

3. The on-vehicle integrated hydraulic power source device according to claim 2, characterized in that: The liquid outlet end of the high-pressure unloading solenoid valve (12) is connected to the oil circuit board (15). The oil return pipeline of the oil circuit board (15) is connected to the oil inlet end of the electromagnetic directional valve (13).

4. The on-vehicle integrated hydraulic power source device according to claim 3, characterized in that: A low-pressure relief valve I (14) is installed at the oil inlet end of the electromagnetic directional valve (13). The oil outlet end of the electromagnetic directional valve (13) is connected to the liquid inlet end of the low-pressure relief valve II (11). The liquid outlet end of the low-pressure relief valve II (11) is connected to the oil inlet end of a check valve (7) through an oil return filter (16). The oil outlet end of the check valve (7) is connected to the oil inlet end of the oil return gear pump in the double-pump (6).

5. The on-vehicle integrated hydraulic power source device according to claim 4, wherein: The liquid inlet end of the oil pumping filter (17) is installed with an oil pumping gear pump (19). The liquid outlet end of the oil pumping filter (17) is installed with a digital display flowmeter (20). The oil pumping filter (17) is also connected with a pressure gauge (18).

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