CN220054139U - High-precision hydraulic oil pump truck - Google Patents

Abstract

The utility model provides a high-precision hydraulic oil pump truck, and relates to the technical field of oil pump trucks. The system comprises a vehicle body and an oil tank, wherein the oil tank is provided with a first pipeline to a seventh pipeline; the hydraulic system is integrated and simplified to the greatest extent, so that the equipment is miniaturized and light, and the working pressure and flow of the equipment can be regulated through the control panel of the system.

Description

High-precision hydraulic oil pump truck

Technical Field

The utility model relates to the technical field of oil pump trucks, in particular to a high-precision hydraulic oil pump truck.

Background

The hydraulic oil pump truck is a ground guarantee type device for maintaining and detecting the hydraulic system of the aircraft on the ground. The common hydraulic oil pump truck equipment is very large in volume, the system pressure and flow are basically controlled by buttons directly, and the operation is complex.

Disclosure of Invention

Aiming at the defects in the background technology, the utility model provides a high-precision hydraulic oil pump truck.

The utility model is realized in the following way:

the utility model provides a high-precision hydraulic oil pump truck which comprises a truck body, wherein an oil tank is arranged on the truck body, the oil tank is connected with a first pipeline, the first pipeline is sequentially provided with an oil return filter, an electromagnetic valve, an electric proportional pressure plunger pump and a first one-way valve, the first pipeline is connected with a second pipeline, the second pipeline is provided with a second one-way valve, a coarse filter, a precise filter, a pressure sensor, a flow sensor, a high-pressure pipe coiling device and an oil supply valve equipment end, the first pipeline is also connected with a third pipeline, the third pipeline is positioned between the electromagnetic valve and the electric proportional pressure plunger pump, the third pipeline is provided with an air cooler, an oil return pressure sensor, a temperature transmitter, a low-pressure pipe coiling device and an oil return valve end, the first pipeline is also connected with a fourth pipeline, one end of the fourth pipeline is connected with the electric proportional pressure plunger pump, the other end of the fourth pipeline is connected with a fifth pipeline, the fifth pipeline is provided with an overflow valve, and the two ends of the fifth pipeline are respectively connected with the second pipeline and the third pipeline;

the second pipeline is connected with a sixth pipeline, and the sixth pipeline is provided with a gear pump, a fourth one-way valve, a precision filter, a oiling pipe reel and an oiling valve equipment end;

the oil return valve aircraft end and the oil supply valve aircraft end are respectively arranged at two ends of the seventh pipeline.

In the utility model, the oil tank is provided with a liquid level meter.

In the utility model, the oil tank is provided with a first sampling valve.

In the present utility model, the third line is provided with a second sampling valve.

In the present utility model, the oil tank is provided with an air filter.

Compared with the prior art, the utility model has at least the following advantages or beneficial effects:

1. the utility model integrates and simplifies the hydraulic system to the maximum extent so as to achieve the miniaturization and the light weight of equipment.

2. According to the utility model, the oil filling valve equipment end, the oil supply valve equipment, the oil return valve equipment end and the corresponding interfaces on the equipment are firmly connected, the oil self-circulation function is started, all pipelines on the equipment are cleaned while the equipment is cleaned, no pollution of a butt-joint aircraft is ensured, the interiors of all the pipelines are ensured to be filled with oil (without bubbles), and the equipment can normally work after being connected.

3. When the working pressure and flow are required to be regulated, after the oil supply valve equipment end, the oil return valve equipment end and corresponding interfaces on the aircraft are firmly connected, the pressure or flow of the equipment is regulated on a control panel of the system.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a system structure according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram of the flow of oil in the self-circulation mode of the apparatus according to the embodiment of the present utility model;

FIG. 3 is a schematic diagram of the flow of oil in an on-line fueling mode of the apparatus according to an embodiment of the present utility model;

FIG. 4 is a schematic diagram of the flow of oil in the on-line mode of operation of the apparatus according to an embodiment of the present utility model.

Icon: 1-gear pump, 2-motor, 3-fourth check valve, 4-second precision filter, 5-refuel reel, 6-refuel valve equipment end, 7-first check valve, 8-coarse filter, 9-overflow valve, 10-pressure sensor, 11-flow sensor, 12-high pressure reel, 13-oil supply valve equipment end, 14-oil supply valve aircraft end, 15-return pressure sensor, 16-temperature transmitter, 17-low pressure reel, 18-return valve equipment end, 19-return valve aircraft end, 20-second sampling valve, 21-air filter, 23-tank, 24-wind cooler, 25-return filter, 26-solenoid valve, 27-electric proportional pressure plunger pump, 28-high speed variable frequency motor, 29-second check valve, 30-first precision filter, 31-third check valve, 32-first sampling valve, 33-first pipeline, 34-second pipeline, 35-third pipeline, 36-fourth pipeline, 37-fifth pipeline, 38-seventh pipeline, 39-seventh pipeline.

Detailed Description

Examples

Referring to fig. 1-4, an embodiment of the present utility model is shown.

The embodiment provides a high-precision hydraulic oil pump truck, which comprises a truck body, wherein an oil tank 23 is arranged on the truck body, an air filter 21 and a first sampling valve 32 are arranged on the oil tank 23, a first pipeline 33 is connected with the oil return filter 25, an electromagnetic valve 26, an electric proportional pressure plunger pump 27 and a first one-way valve 7 in sequence, the first pipeline 33 is connected with a second pipeline 34, the second pipeline 34 is provided with a second one-way valve 29, a coarse filter 8, a precise filter, a pressure sensor 10, a flow sensor 11, a high-pressure coiled pipe 12 and an oil supply valve equipment end 13, the first pipeline 33 is also connected with a third pipeline 35, the third pipeline 35 is positioned between the electromagnetic valve 26 and the electric proportional pressure plunger pump 27, the third pipeline 35 is provided with an air cooler 24, an oil return pressure sensor 15, a temperature transmitter 16, a second sampling valve 20, a low-pressure coiled pipe 17 and an oil return valve equipment end 18, the first pipeline 33 is also connected with a fourth pipeline 36, one end of the fourth pipeline 36 is connected with the electric proportional pressure plunger pump 27, the other end is connected with a fifth pipeline 37, the third pipeline 31 is also connected with the fourth pipeline 36, and the two ends of the fourth pipeline 37 are respectively connected with the fourth pipeline 35 and the two ends of the third pipeline 35 are respectively;

the second pipeline 34 is connected with a sixth pipeline 38, and the sixth pipeline 38 is provided with a gear pump 1, a fourth one-way valve 3, a precision filter, a refueling reel 5 and a refueling valve equipment end 6;

also comprises a seventh pipeline 39, and two ends of the seventh pipeline 39 are respectively provided with an oil return valve airplane end 19 and an oil supply valve airplane end 14.

The functions of the parts are as follows:

the gear pump 1 is a low-pressure pump for aircraft refueling and self-circulation working conditions, and is used for driving the gear pump 1 to work through the motor 2.

The first check valve 7, the second check valve 29, the third check valve 31 and the fourth check valve 3 are all used for oil to pass through in one direction; the precise filter and the coarse filter 8 are used for filtering oil; the oiling reel pipe device 5 can accommodate a hose for oiling a machine, the high-pressure reel pipe device 12 accommodates a hose for outputting high-pressure oil liquid, and the low-pressure reel pipe device 17 accommodates a hose for returning low-pressure oil liquid; the fueling valve equipment end 6 is a valve joint which is in butt joint with the fueling valve of the airplane; the oil supply valve equipment end 13 is a valve joint which is in butt joint with the high-pressure valve of the airplane; the fuel supply valve aircraft end 14 is an aircraft high pressure valve for equipment self-circulation; the oil return valve equipment end 18 is a valve joint which is in butt joint with the aircraft oil return valve; the return valve aircraft end 19 is an aircraft return valve for self-circulation of the apparatus.

The overflow valve 9 limits the maximum pressure of the system; the pressure sensor 10 is used for detecting the pressure of high-pressure oil output by the system; the flow sensor 11 is used for detecting the flow of high-pressure oil liquid output by the system; the return oil pressure sensor 15 is used for detecting the pressure of return oil output by the system; the temperature transmitter 16 is used to sense the system oil temperature.

The first sampling valve 32 and the second sampling valve 20 are used for sampling oil in the equipment system; the air filter 21 is mounted on the tank 23 for breathing of the tank 23; the liquid level meter is used for detecting the liquid level height of the oil tank 23; the air cooler 24 is used for cooling the system oil temperature; the oil return filter 25 is used for filtering oil in the oil return tank 23. The solenoid valve 26 is used for switching the self-circulation mode to the on-machine mode; the electric proportional pressure plunger pump 27 is a high-pressure pump for a counter mode, the output pressure of the pump can be regulated in proportion, the high-speed variable frequency motor 28 is used for driving the electric proportional pressure plunger pump 27 to work, and the rotating speed of the motor 2 can be regulated steplessly.

Working principle:

the device has the following three working modes:

first, self-circulation mode:

firstly, the oil filling valve equipment end 6, the oil filling valve equipment end 13, the oil return valve equipment end 18 and corresponding interfaces on the equipment are firmly connected, and then the oil self-circulation function is started. After the self-circulation is completed for a certain period of time, the first sampling valve 32 and the second sampling valve 20 are opened to sample oil and send out inspection, and the inspection result is superior to that of the GJBB-stage, namely the self-circulation is judged to be completed.

The self-circulation work cleans all pipelines while cleaning the oil of the equipment, and ensures that the docking aircraft is pollution-free. In addition, the self-circulation is necessary before the machine works, and the self-circulation ensures that all the inner parts of the pipelines (especially the machine hoses) of the equipment are filled with oil (without bubbles), so that the equipment can be ensured to work normally after the machine is connected.

Second, online fueling mode:

ensuring that the fueling valve equipment end 6 is firmly butted with a corresponding valve interface on the aircraft, and then starting an online fueling function. After the equipment is stopped, the oiling valve equipment end 6 is taken down, a blocking cover is covered, the corresponding hose is retracted, and the dripping oil is wiped.

Third, online mode of operation:

ensures that the oil supply valve equipment end 13, the oil return valve equipment and corresponding interfaces on the aircraft are firmly connected, and then the online working function is started. When the working pressure and flow rate need to be adjusted, the pressure or flow rate of the equipment is manually adjusted by carrying out on a control panel of the system.

In summary, the embodiments of the present utility model have at least the following beneficial effects:

1. the utility model integrates and simplifies the hydraulic system to the maximum extent so as to achieve the miniaturization and the light weight of equipment.

2. The utility model can realize stepless regulation of system pressure and flow through the electric proportional pressure plunger pump 27.

3. The utility model can control the pollution degree level of the oil liquid solid particles of the equipment system by starting the self-circulation mode.

The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (5)

1. The high-precision hydraulic oil pump truck is characterized by comprising a truck body, wherein an oil tank is arranged on the truck body, the oil tank is connected with a first pipeline, the first pipeline is sequentially provided with an oil return filter, an electromagnetic valve, an electric proportional pressure plunger pump and a first one-way valve, the first pipeline is connected with a second pipeline, the second pipeline is provided with a second one-way valve, a coarse filter, a first precise filter, a pressure sensor, a flow sensor, a high-pressure pipe coiling device and an oil supply valve equipment end, the first pipeline is further connected with a third pipeline, the third pipeline is positioned between the electromagnetic valve and the electric proportional pressure plunger pump, the third pipeline is provided with an air cooler, an oil return pressure sensor, a temperature transmitter, a low-pressure pipe coiling device and an oil return valve end, one end of the fourth pipeline is connected with the electric proportional pressure plunger pump, the other end of the fourth pipeline is connected with a fifth pipeline, the fourth pipeline is provided with a third one-way valve, and the two ends of the fifth pipeline are respectively connected with the third pipeline;

the second pipeline is connected with a sixth pipeline which is connected with the oil tank and is provided with a gear pump, a fourth one-way valve, a second precise filter, a oiling pipe reel and an oiling valve equipment end;

the oil return valve aircraft end and the oil supply valve aircraft end are respectively arranged at two ends of the seventh pipeline.

2. The high-precision hydraulic oil pump truck according to claim 1, characterized in that the oil tank is provided with a level gauge.

3. The high precision hydraulic oil pump truck according to claim 1, wherein the oil tank is provided with a first sampling valve.

4. The high-precision hydraulic oil pump truck according to claim 1, wherein the third pipeline is provided with a second sampling valve.

5. The high precision hydraulic oil pump truck according to claim 1, characterized in that the oil tank is provided with an air filter.