A high-pressure oil source device with fully automatic oil temperature and particle size control

Abstract

The utility model discloses a high-pressure oil source device with full-automatic oil temperature and particle size control, including: an electric control box, a pump station bracket and an oil tank, the oil tank top plate is equipped with an air filter and an oil return filter, the oil tank is also equipped with a thermostat, two high-pressure filters are installed at the pump outlet of the remote pressure regulating motor pump group, the high-pressure filter is connected to the overflow valve group, the overflow valve group is composed of an electromagnetic overflow valve, a pilot overflow valve, a check valve, a pressure sensor, a pressure gauge, a high-pressure ball valve and a valve block, etc., the overflow valve group pipeline is connected to the pumping motor pump group, a thermostat is arranged on the pipeline between the overflow valve group and the pumping motor pump group, the thermostat is connected to the oil tank through the oil return filter, and the thermostat is also connected to the overflow valve group through a pipeline. The utility model can be fully automatically operated, the device is arranged between the hydraulic equipment and the oil source, the hydraulic oil is processed in an integrated manner, the structure of the terminal hydraulic equipment is optimized, and the cost of the terminal hydraulic equipment is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic equipment, in particular to a high-pressure oil source device with full-automatic oil temperature and particle size control. Background Art

[0002] Hydraulic equipment is the carrier of hydraulic system. A complete hydraulic system consists of five parts, namely power element, actuator, control element, auxiliary element and hydraulic oil. Hydraulic equipment is the combination of all parts. Hydraulic equipment has strong transmission force, easy transmission and configuration, and is widely used in industry and civil industries. The function of hydraulic cylinder and hydraulic motor, the actuator of hydraulic system, is to convert the pressure energy of liquid into mechanical energy to obtain the required linear reciprocating motion or rotary motion.

[0003] The existing hydraulic oil source equipment has a simple structure. The valve island and the oil source are directly connected through a pump. The oil source cannot be filtered or temperature controlled. It is necessary to assemble relevant components on the hydraulic equipment at the terminal to complete the oil source processing. This method causes the cost of the hydraulic equipment to be too high and the structure to be too complicated.

[0004] Therefore, we propose a high-pressure oil source device with fully automatic oil temperature and particle size control to solve the problems mentioned above. Utility Model Content

[0005] The utility model aims to provide a high-pressure oil source device with full-automatic oil temperature and particle size control to solve the problems raised in the above background technology.

[0006] To achieve the above purpose, the utility model provides the following technical solutions: a high-pressure oil source device with fully automatic oil temperature and particle size control, comprising: an electric control box, a pump station bracket and an oil tank, the top plate of the oil tank is equipped with an air filter and an oil return filter, and a thermostat is also installed on the oil tank;

[0007] The upper surface of the oil tank is provided with a relief valve group and an oil pumping motor group, and the side of the oil tank is provided with a remote pressure regulating motor pump group;

[0008] Two high-pressure filters are installed at the pump outlet of the remote pressure regulating motor pump group, and the high-pressure filters are connected to the overflow valve group;

[0009] The relief valve group is composed of an electromagnetic relief valve, a pilot relief valve, a check valve, a pressure sensor, a pressure gauge, a high-pressure ball valve and a valve block, etc. The electromagnetic relief valve sets the maximum system pressure, the pilot relief valve is arranged at the outlet of the remote pressure regulating motor pump group, and the outlet pressure of the plunger pump is remotely adjusted. The pump outlet and the oil supply port are respectively equipped with a pressure gauge and a pressure sensor;

[0010] The overflow valve group pipeline is connected to the oil pump motor pump group;

[0011] A thermostat is arranged on the pipeline between the overflow valve group and the oil pumping motor pump group. The thermostat is connected to the oil tank through an oil return filter. The thermostat is also connected to the overflow valve group through a pipeline.

[0012] Preferably, the oil tank is fixedly arranged in the pump station bracket, and the oil tank is made of stainless steel plate by sandblasting, bending, welding and grinding.

[0013] Preferably, a visual liquid level and liquid temperature gauge is installed on the oil tank, and an oil drain ball valve is provided at the bottom of the oil tank.

[0014] Preferably, the remote pressure regulating motor pump group is connected to the inside of the oil tank through an oil suction ball valve, and the remote pressure regulating motor pump group consists of a driving motor and a remote pressure regulating plunger pump.

[0015] Preferably, the oil pumping motor pump group is connected to an external oil source through a ball valve.

[0016] Preferably, the electromagnetic overflow valve is connected to a high-pressure ball valve, and the high-pressure ball valve is connected to an external device.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] The thermostat can be automatically started to adjust the temperature according to temperature feedback to maintain the system temperature between 40-60°. The equipment can work normally in -10~+50℃ and rainy and snowy weather. It performs internal circulation filtration according to the feedback signal of the particle size detector and outputs pressure oil to the outside after meeting the appropriate requirements. The liquid level has low liquid level alarm and low liquid level automatic shutdown. The equipment can run fully automatically. This equipment is set between the hydraulic equipment and the oil source to integrate the processing of hydraulic oil, optimize the structure of the terminal hydraulic equipment, and reduce the cost of the terminal hydraulic equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of the pump station bracket in the utility model;

[0021] Figure 3 For this utility model Figure 2 Rear view of

[0022] Figure 4 This is a flow chart of the working principle of the utility model.

[0023] In the figure: 1. High-pressure ball valve; 2. Thermostat; 3. Overflow valve group; 4. Return oil filter; 5. High-pressure filter; 6. Remote pressure regulating motor pump group; 7. Oil pumping motor pump group; 8. Ball valve; 9. Air filter; 10. Oil tank; 11. Liquid level and temperature gauge; 12. Pump station bracket; 13. Oil drain ball valve. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-4 The utility model provides a technical solution: a high-pressure oil source device with fully automatic oil temperature and particle size control, including: an electric control box, a pump station bracket 12 and an oil tank 10, the oil tank 10 is fixedly arranged in the pump station bracket 12, and the oil tank 10 is made of stainless steel plate by sandblasting, bending, welding and grinding;

[0026] The oil tank 10 is provided with a visual liquid level and liquid temperature gauge 11, which can conveniently observe the amount and temperature of the medium in the oil tank 10. The bottom of the oil tank 10 is provided with an oil drain ball valve 13, which is used to quickly drain the medium in the oil tank 10;

[0027] The top plate of the oil tank 10 is equipped with an air filter 9 and an oil return filter 4 to prevent external pollutants from entering the oil tank 10, ensure the cleanliness of the medium, and protect the normal operation of the system to the greatest extent;

[0028] The oil tank 10 is also provided with a thermostat 2 to maintain the system temperature of the oil tank 10;

[0029] The overflow valve group 3 and the oil pumping motor group 7 are arranged on the upper surface of the oil tank 10, and the remote pressure regulating motor pump group 6 is arranged on the side of the oil tank 10, and the remote pressure regulating motor pump group 6 is fixedly installed on the pump station bracket 12;

[0030] The remote pressure regulating motor pump group 6 is connected to the inside of the oil tank 10 through an oil suction ball valve. The remote pressure regulating motor pump group 6 is composed of a driving motor and a remote pressure regulating plunger pump. The pump sucks oil from the oil tank 10 under the drive of the motor to provide pressure energy for the system. A one-way valve is installed at the pump outlet to prevent the backflow impact of the hydraulic oil, and two high-pressure filters 5 are installed at the pump outlet. The high-pressure filter 5 is connected to the overflow valve group 3 to ensure the cleanliness of the working medium.

[0031] The oil pump motor pump group 7 is connected to the external oil source through the ball valve 8, and is used to draw oil from the external oil source to fill the oil tank 10;

[0032] The relief valve group 3 is composed of an electromagnetic relief valve, a pilot relief valve, a check valve, a pressure sensor, a pressure gauge, a high-pressure ball valve 1 and a valve block. The electromagnetic relief valve sets the maximum system pressure to prevent the system from overloading. The pilot relief valve is arranged at the outlet of the remote pressure regulating motor pump group 6, and the outlet pressure of the plunger pump can be remotely adjusted. The pump outlet and the oil supply port are respectively equipped with a pressure gauge and a pressure sensor, which is convenient for operators to know the working status of the system and facilitate debugging and use;

[0033] The electromagnetic relief valve is connected to the high-pressure ball valve 1 to supply oil to external equipment;

[0034] The pipeline of the overflow valve group 3 is connected to the oil pumping motor pump group 7;

[0035] A thermostat 2 is arranged on the pipeline between the overflow valve group 3 and the oil pumping motor pump group 7. The thermostat 2 is connected to the oil tank 10 through the return oil filter 4. The thermostat 2 is also connected to the overflow valve group 3 through a pipeline.

[0036] Working principle: The oil pump motor group 7 draws oil from the external source through the ball valve 8 to fill the oil tank 10, starts the remote pressure regulating motor pump group 6, and the oil is sucked in through the oil suction ball valve, and then filtered through two high-pressure filters 5 with different filtration precisions to enter the overflow valve group 3, and finally supplies energy to the external equipment accumulator through the high-pressure ball valve 1;

[0037] The working pressure of the oil control port is jointly determined by the set pressures of the electromagnetic relief valve and the pilot relief valve of the relief valve group 3. When the set pressure of the electromagnetic relief valve is less than the set pressure of the pilot relief valve, the electromagnetic relief valve overflows, and the working pressure of the oil outlet is the set pressure of the electromagnetic relief valve. When the set pressure of the electromagnetic relief valve is greater than the set pressure of the pilot relief valve, the remote pressure regulation of the pilot relief valve determines the working pressure of the oil outlet, which is the set pressure of the pilot relief valve.

[0038] The equipment can automatically start the thermostat 2 to adjust the temperature according to the temperature feedback, maintain the system temperature between 40-60°, and can work normally in -10~+50℃ and rainy and snowy weather. It performs internal circulation filtration according to the feedback signal of the particle size detector, and outputs pressure oil to the outside after meeting the appropriate requirements. The liquid level has low liquid level alarm and low liquid level automatic shutdown, and the equipment can operate fully automatically.

[0039] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-pressure oil source device with fully automatic oil temperature and particle size control, comprising: An electric control box, a pump station bracket (12) and an oil tank (10), characterized in that an air filter (9) and an oil return filter (4) are installed on the top plate of the oil tank (10), and a thermostat (2) is also installed on the oil tank (10); An overflow valve group (3) and an oil pumping motor group (7) are arranged on the upper surface of the oil tank (10), and a remote pressure regulating motor pump group (6) is arranged on the side of the oil tank (10); Two high-pressure filters (5) are installed at the pump outlet of the remote pressure regulating motor pump group (6), and the high-pressure filters (5) are connected to the overflow valve group (3); The relief valve group (3) comprises an electromagnetic relief valve, a pilot relief valve, a check valve, a pressure sensor, a pressure gauge, a high-pressure ball valve (1) and a valve block, wherein the electromagnetic relief valve sets the maximum system pressure, the pilot relief valve is arranged at the outlet of the remote pressure regulating motor pump group (6) to remotely adjust the outlet pressure of the plunger pump, and the pump outlet and the oil supply port are respectively equipped with a pressure gauge and a pressure sensor; The overflow valve group (3) is connected to the oil pump motor group (7) through a pipeline; A thermostat (2) is arranged on the pipeline between the overflow valve group (3) and the oil pumping motor pump group (7); the thermostat (2) is connected to the oil tank (10) via an oil return filter (4); and the thermostat (2) is also connected to the overflow valve group (3) via a pipeline.

2. A high pressure oil source device with fully automatic oil temperature and particle size control according to claim 1, characterized in that: The oil tank (10) is fixedly arranged in the pump station bracket (12); the oil tank (10) is made of a stainless steel plate by sandblasting, bending, welding and grinding.

3. A high pressure oil source device with fully automatic oil temperature and particle size control according to claim 2, characterized in that: The oil tank (10) is provided with a visual liquid level and liquid temperature gauge (11), and the bottom of the oil tank (10) is provided with an oil drain ball valve (13).

4. The high-pressure oil source equipment with fully automatic oil temperature and particle size control according to claim 1 is characterized in that: The remote pressure regulating motor pump group (6) is connected to the interior of the oil tank (10) via an oil suction ball valve, and the remote pressure regulating motor pump group (6) is composed of a driving motor and a remote pressure regulating plunger pump.

5. The high-pressure oil source equipment with fully automatic oil temperature and particle size control according to claim 1 is characterized in that: The oil pumping motor pump group (7) is connected to an external oil source via a ball valve (8).

6. The high-pressure oil source equipment with fully automatic oil temperature and particle size control according to claim 1 is characterized in that: The electromagnetic overflow valve is connected to the high-pressure ball valve (1), and the high-pressure ball valve (1) is connected to external equipment.

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