CN220320019U - Centralized control type hydraulic pump station - Google Patents

Abstract

The utility model discloses a centralized control type hydraulic pump station, which comprises a power device, a hydraulic pump, an oil tank, a control box and a load proportion multi-way valve, wherein the power device, the hydraulic pump, the oil tank, the control box and the load proportion multi-way valve are arranged on a frame, the power device is connected with the hydraulic pump, the hydraulic pump is respectively connected with the oil tank and the load proportion multi-way valve through oil pipes, the power device drives the hydraulic pump to take hydraulic oil in the oil tank into the load proportion multi-way valve, the load proportion multi-way valve is connected with the hydraulic motor, hydraulic oil is output to the hydraulic motor, oil pressure in the hydraulic motor is controlled through the load proportion multi-way valve, the load proportion multi-way valve is connected with an oil way of the control box and is electrically connected with the control box, and the control box monitors and regulates working oil pressure of the hydraulic motor.

Description

Centralized control type hydraulic pump station

Technical Field

The utility model relates to the technical field of hydraulic pressure, in particular to a centralized control type hydraulic pump station.

Background

The hydraulic pump station is a hydraulic source device formed by a hydraulic pump, an oil tank, a motor, a valve and the like, is the most common component part in a hydraulic system, can supply oil according to the flow direction, the pressure and the flow required by the hydraulic motor, and can realize various specified actions by connecting the hydraulic station with an oil pipe for the hydraulic motor.

The existing hydraulic pump station can only provide power for the hydraulic motor, and the control of the hydraulic motor also needs to be controlled through an operating handle on the hydraulic motor. When one hydraulic pump station simultaneously provides power for a plurality of hydraulic motors, operators need to walk to the corresponding positions of the hydraulic motors, and control the motors through handles, so that the operation is inconvenient and the efficiency is extremely low.

Disclosure of Invention

The utility model mainly solves the technical problem of providing a centralized control type hydraulic pump station and solving the problem that the hydraulic pump station cannot directly monitor a plurality of hydraulic motors in a centralized way.

In order to solve the technical problems, the utility model provides a centralized control type hydraulic pump station, which comprises a power device, a hydraulic pump, an oil tank, a control box and a load proportion multi-way valve, wherein the power device, the hydraulic pump, the oil tank and the control box are arranged on a rack; the power device is connected with the hydraulic pump and is used for driving the hydraulic pump to operate; the hydraulic pump is respectively connected with the oil tank and the load proportion multi-way valve through an oil pipe and is used for outputting hydraulic oil in the oil tank to the load proportion multi-way valve; the load proportion multiway valve is connected with an oil way of a control box and electrically connected with the control box, and the control box is used for monitoring and regulating the oil pressure of a plurality of hydraulic motors.

Preferably, the load ratio multiway valve comprises a pump side module and a plurality of working valve groups, wherein the pump side module is respectively connected with the hydraulic pump and the oil tank through oil pipes, and the plurality of working valve groups are used for connecting a plurality of hydraulic motors.

Preferably, the pump side module comprises a pressure oil port and an oil return port, wherein the pressure oil port is connected with the hydraulic pump through an oil pipe, and the oil return port is connected with an oil inlet of the oil tank through the oil pipe.

Preferably, the pump side module further comprises a first pressure measuring port, the first pressure measuring port is arranged at the bottom of the pump side module, and the first pressure measuring port is connected with the control box through an oil pipe.

Preferably, the working valve groups comprise electric control components, working components and control components, and the electric control components are electrically connected with the control box; the working assembly comprises a first working oil port, a second working oil port and a second pressure measuring port, wherein the first working oil port and the second working oil port are respectively used for connecting an oil inlet and an oil outlet of the hydraulic motor, and the second pressure measuring port is connected with the control box through an oil pipe; the control assembly is used for manually controlling the oil pressure of the working assembly.

Preferably, the control box comprises a front panel, a left side plate, a right side plate, a rear panel, a bottom panel, a hub for connecting cables, an integrated shuttle valve part for collecting and outputting pressure signals and a remote control receiver for transmitting remote control signals, wherein the hub and the integrated shuttle valve part are arranged on the bottom panel, the remote control receiver is arranged on the left side plate, and the hub is respectively and electrically connected with the integrated shuttle valve part and the remote control receiver; the front panel is provided with a plurality of oil pressure gauges and centralized control display screens, the oil pressure gauges are respectively connected with the integrated shuttle valve piece through oil pipes, and the centralized control display screens are electrically connected with the hub.

Preferably, the integrated shuttle valve piece comprises an input end, a first output end and a second output end, wherein the input end is provided with a plurality of input joints for acquiring oil pressure, and the input joints are respectively connected with the first pressure measuring port and the second pressure measuring ports through oil pipes; the first output end is provided with a plurality of shuttle valves and a plurality of output connectors, the shuttle valves are used for oil pressure comparison, and the plurality of output connectors are respectively connected with a plurality of oil pressure gauges through oil pipes; the second output end is provided with a plurality of oil pressure sensors, and the plurality of oil pressure sensors are respectively and electrically connected with the hub.

Preferably, be provided with the oil return filter that is arranged in filtering impurity in the hydraulic oil on the oil tank, be used for filtering air filter, the oil temperature liquid level gauge, the oil tank oil inlet, oil tank oil-out and oil tank drain outlet of impurity in the air, the oil tank oil inlet sets up in oil return filter department, air filter and oil temperature liquid level gauge set up in the upper portion of oil tank, oil temperature liquid level gauge is connected with the concentrator electricity, the oil tank oil inlet is connected with the oil return outlet through oil pipe, the oil tank oil-out is connected with the hydraulic pump through oil pipe, the oil tank drain outlet is used for connecting hydraulic motor's drain outlet.

Preferably, the hydraulic pump comprises a power shaft, an oil pump oil inlet, an oil pump oil outlet and a control oil port, wherein the power shaft is connected with the power device, the oil pump oil inlet is connected with the oil tank oil outlet through an oil pipe, the oil pump oil outlet is connected with the pressure oil port through an oil pipe, and the control oil port is connected with the load proportion multiway valve through an oil pipe.

Preferably, the centralized control type hydraulic pump station further comprises an air-cooled radiator, wherein the air-cooled radiator is fixedly arranged on the front side of the frame and is close to the oil tank, and the air-cooled radiator is electrically connected with the control box.

The beneficial effects of the utility model are as follows: the utility model provides a centralized control formula hydraulic pump station, including setting up power device in the frame, the hydraulic pump, the oil tank, the control box and be used for controlling the load proportion multiple unit valve of a plurality of hydraulic motors, power device is connected with the hydraulic pump, the hydraulic pump passes through oil pipe and is connected with oil tank and load proportion multiple unit valve respectively, power device drives the hydraulic pump and gets the hydraulic oil in the oil tank and get in the load proportion multiple unit valve, load proportion multiple unit valve is connected with hydraulic motor, output hydraulic oil gives hydraulic motor, control the oil pressure in the hydraulic motor through load proportion multiple unit valve, load proportion multiple unit valve is connected and the electricity is connected with the control box oil circuit, the control box monitors and regulates and control hydraulic motor's operating oil pressure.

Drawings

FIG. 1 is a schematic view of the front side of an embodiment of the present utility model;

FIG. 2 is a schematic view of the rear side of an embodiment of the present utility model;

FIG. 3 is a schematic view of a hydraulic pump according to an embodiment of the present utility model;

FIG. 4 is a schematic view of a fuel tank according to an embodiment of the present utility model;

FIG. 5 is a schematic diagram of a control box according to an embodiment of the present utility model;

FIG. 6 is a schematic view of the structure of the control box according to an embodiment of the present utility model;

FIG. 7 is a schematic view of the structure of the left side of an integrated shuttle valve member according to an embodiment of the present utility model;

FIG. 8 is a schematic view of the structure of the right side of an integrated shuttle valve member according to an embodiment of the present utility model;

FIG. 9 is a schematic diagram of the front face of a load ratio multiway valve according to an embodiment of the utility model;

FIG. 10 is a schematic view of the back side of a load ratio multiway valve according to an embodiment of the utility model;

fig. 11 is a schematic diagram of an integrated shuttle valve member according to an embodiment of the present utility model.

Detailed Description

In order that the utility model may be readily understood, a more particular description thereof will be rendered by reference to specific embodiments that are illustrated in the appended drawings. Preferred embodiments of the present utility model are shown in the drawings. This utility model may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used in this specification includes any and all combinations of one or more of the associated listed items.

For the description of the present utility model, the labels "front", "rear", "up", "down", "left" and "right" shown in fig. 1 are used for non-limiting purposes to facilitate understanding of this embodiment and are not intended to limit the present utility model. Wherein, the front-back direction represents the longitudinal direction, the left-right direction represents the transverse direction, and the up-down direction represents the vertical direction.

With reference to fig. 1 and 2, the centralized control hydraulic pump station comprises a frame 1, a power device 2 arranged on the frame 1, a hydraulic pump 4, an oil tank 5, a control box 6, a load proportion multi-way valve 7 and an air-cooled radiator 8, wherein the control box 6 and the load proportion multi-way valve 7 are arranged on the upper side of the front end of the frame 1 side by side, so that operation and observation of operators are facilitated. The hydraulic pump 4 and the power unit 2 are disposed at the lower side of the rear end of the frame 1. The oil tank 5 is arranged on the upper side of the hydraulic pump 4, namely the rear side of the load proportion multi-way valve 7, so that the connection and arrangement of oil pipes between the hydraulic pump 4 and the load proportion multi-way valve 7 and the oil tank 5 are facilitated, and the space is saved. The air-cooled radiator 8 is arranged on the lower side of the load proportion multi-way valve 7, the air blowing opening of the air-cooled radiator 8 corresponds to the position of the oil tank 5, the air-cooled radiator 8 is convenient for radiating hydraulic oil in the oil tank 5, the air-cooled radiator 8 is electrically connected with the control box 6, and the control box 6 controls the start and stop of the air-cooled radiator 8 according to the oil temperature. The right side of the frame 1 is provided with a plurality of adapter connectors 11, and the adapter connectors 11 convert the oil pipe with larger inner diameter from the external connection of the hydraulic pump station into the oil pipe with small inner diameter, so that the hydraulic pump station is convenient to be further connected with the load proportion multi-way valve 7, the control box 6 and other equipment. Meanwhile, the oil pipes with small inner diameters can be connected in a tandem way, and are connected with the oil tank 5 after being connected together in a tandem way.

The shape of the frame 1 may be a cuboid, a cube or other shapes. The arrangement mode of each component of the centralized control hydraulic pump station determines that the length of the frame 1 in the front-back direction is smaller than that in the left-right direction, so that if the frame 1 is square, the length of the frame 1 in the front-back direction is equal to that in the left-right direction, the size of the frame 1 can be increased, and space waste is caused.

Preferably, the shape of the frame 1 is a cuboid. Therefore, the space utilization rate of the frame 1 can be improved, and the volume of the centralized control type hydraulic pump station can be reduced.

The power device 2 can be a gasoline engine or a diesel engine, the power device 2 is connected with the hydraulic pump 4 through the coupling 3, and the power device 2 drives the hydraulic pump 4 to operate.

Fig. 3 is a schematic structural view of a hydraulic pump, fig. 4 is a schematic structural view of an oil tank, and in combination with fig. 3 and 4, a power shaft 41, an oil pump oil inlet 42, an oil pump oil outlet 43 and a control oil port 44 are arranged on the hydraulic pump 4; the oil tank 5 is provided with an oil tank outlet 52, an oil temperature liquid level gauge 53, an air filter 54, an oil return filter 55, an oil tank drain port 56 and a fixing piece 57, and the oil tank inlet 51 is arranged at the oil return filter 55. The power shaft 41 of the hydraulic pump 4 is connected with the power device 2 through the coupling 3, the power device 2 drives the hydraulic pump 4 to operate, the oil pump oil inlet 42 of the hydraulic pump 4 is connected with the oil tank oil outlet 52, and oil in the oil tank 5 is input into the hydraulic pump 4. The oil pump outlet 43 is connected to the load ratio multiple valve 7, and outputs the oil treated by the hydraulic pump 4 to the load ratio multiple valve 7. The control port 44 is connected to a feedback valve of the load ratio multi-way valve 7, and the hydraulic pump 4 feeds back a signal of the load ratio multi-way valve 7 to the hydraulic pump 4 through the control port 44, and the hydraulic pump 4 adjusts the flow rate of the oil according to the fed-back signal.

The oil tank 5 is fixed on the frame 1 through a fixing piece 57, so that accidents caused by shaking of the oil tank are prevented. The air filter 54 filters out impurities in the air to prevent the impurities in the air from contaminating the original hydraulic oil in the oil tank 5. The oil temperature and liquid level meter 55 detects the oil temperature and liquid level of the hydraulic oil in the oil tank 5, the oil temperature and liquid level meter 55 is electrically connected with the control box 6, data of the oil temperature and liquid level are transmitted to the control box 6, and the control box 6 monitors the oil temperature and the liquid level. The control box 6 presets a maximum oil temperature value, and after the oil temperature reaches a set value, the air-cooled radiator 8 is started to cool; the control box 6 is preset with a minimum liquid level value, and when the liquid level reaches a set value, an alarm is given to remind an operator of supplementing the oil quantity. The oil tank inlet 51 is arranged at the oil return filter 55, the oil entering the oil tank 5 passes through the oil return filter 55, and the oil return filter 55 filters out impurities in the hydraulic oil, so that the original hydraulic oil in the oil tank 5 is prevented from being polluted. The oil tank drain port 56 is connected with the adapter 11, and the adapter 11 is connected with a pressure relief port of the hydraulic motor through an oil pipe, so that the internal drain oil in the hydraulic motor can be conveniently discharged.

Referring to fig. 5 and 6, the control box 6 includes a front panel 61, a left side panel 62, a right side panel 63, a rear panel 64, a bottom panel 65, and a hub 651, an integrated shuttle valve 652, and a remote control receiver 621 disposed in the control box 6. The left side plate 62, the right side plate 63, the rear panel 64 and the bottom panel 65 are formed by bending metal plates into an integral structure, the upper end of the front panel 61 is hinged with the upper end of the rear panel 64, and the front panel 61 can be opened upwards, so that overhaul and maintenance of equipment in the box body are facilitated. The hub 651 and the integrated shuttle valve member 652 are provided on the bottom panel 65, so that the line connection between the hub 651 and the integrated shuttle valve member 652 is facilitated, and the remote control receiver 621 is provided on the left side plate 62, so that the line connection between the integrated shuttle valve member 652 and the hub 651 is not affected, and the internal space of the control box 6 is efficiently utilized.

The front panel 61 of the control box 6 is provided with a total pressure gauge 612 and four partial pressure gauges 613, the total pressure gauge 612 and the partial pressure gauges 613 are respectively connected with the integrated shuttle valve 652, hydraulic oil of the integrated shuttle valve 652 is taken to the total pressure gauge 612 and the partial pressure gauge 613, and the total pressure gauge 612 and the partial pressure gauge 613 display corresponding pressure values. The bottom plate 65 of the case is provided with a plurality of connection holes 653, and the control box 6 is connected to an external device through the connection holes 653.

Referring to fig. 7 and 8, the integrated shuttle valve member 652 includes an input end 6521, a first output end 6522, and a second output end 6523, the input end 6521 is provided with a total pressure input joint 65211, four first input joints 65212, and four second input joints 65213, the four first input joints 65212 are located on the upper side of the input end 6521, the four second input joints 65213 are located on the lower sides of the four first input joints 65212, respectively, and the total pressure input joint 65211 is located in the middle of the front end of the input end 6521; the first output end 6522 is provided with a total pressure output joint 65221, four shuttle valves 65222 and four partial pressure output joints 65223, the total pressure output joint 65221 is located at the middle part of the front end of the first output end 6522, the shuttle valve 65222 is located at the left side of the first output end 6522, and the partial pressure output joint 65223 is located at the right side of the shuttle valve 65222; the second output 6523 is provided with a total pressure sensor 65231 and four partial pressure sensors 65232, the total pressure sensor 65231 being located at the forefront end of the second output 6523, the four partial pressure sensors 65232 being located at the rear side of the total pressure sensor 65231. The total pressure sensor 65231 and the four partial pressure sensors 65232 are respectively connected with a hub 651, the hub 651 is connected with a centralized control display screen 611, the total pressure sensor 65231 and the partial pressure sensors 65232 convert pressure signals into electric signals, the electric signals are connected with the centralized control display screen 611 through the hub 651, and the centralized control display screen 611 monitors the pressure in real time.

As shown in fig. 9 and 10, the load ratio multiplexing valve 7 includes a pump side module 71 and eight working valve groups 72, the pump side module 71 is located in the middle of the load ratio multiplexing valve 7, and four working valve groups 72 are symmetrically disposed on two sides of the pump side module 71. The pump-side module 71 includes a pressure port 711, a return port 712, and a first pressure port 713. The oil pump oil inlet 42 of the hydraulic pump 4 is connected with the oil tank oil outlet 52, and the oil in the oil tank 5 is input into the hydraulic pump 4; the oil pump outlet 43 of the hydraulic pump 4 is connected to the pressure oil port 711 of the pump-side module 71 through an oil pipe, and the oil treated by the hydraulic pump 4 is output to the pump-side module 71, and the oil return port 712 of the pump-side module 71 is connected to the oil tank inlet 51 through an oil pipe, so that the hydraulic oil between the oil tank 5 and the pump-side module 71 is supplied and utilized. The first pressure port 713 of the pump-side module 71 is connected to the total pressure input joint 65211 of the integrated shuttle valve member 652 through a connection hole 653, and the hydraulic oil of the pump-side module 71 is taken into the integrated shuttle valve member 652.

The eight working valve groups 72 each include an electric control component 721, a working component 722 and a control component 723, the electric control components 721 are solenoid valves, the electric control components 721 are electrically connected with a hub 651 in the control box 6 through connection holes 653, the hub 651 is connected with a centralized control display screen 611, and the centralized control display screen 611 controls the electric control components 721 through the hub 651. When the working oil pressure of the working assembly 722 needs to be changed, the centralized control display screen 611 is operated, the centralized control display screen 611 sends out a control signal, and the control signal is transmitted to the electric control assembly 721 through the hub 651, so that the valve opening of the electric control assembly 721 is changed, and the working oil pressure of the working assembly 722 is further changed by changing the valve opening.

The eight working assemblies 722 have the same construction, each of which includes a first working oil port 7221, a second working oil port 7222 and a second pressure measuring port 7223, and the first working oil port 7221 and the second working oil port 7222 of the eight working assemblies 722 are respectively and correspondingly connected to the oil inlet and outlet ports of the eight hydraulic motors, so that the working oil pressure of the working assemblies 722 is the same as the working oil pressure of the hydraulic motors to which they are correspondingly connected, and the working oil pressure of the corresponding hydraulic motors can be increased or decreased by changing the working oil pressure of each working assembly 722. The second pressure taps 7223 of the eight working assemblies 722 are connected to the four first input connections 65212 and the four second input connections 65213, respectively, of the shuttle valve assembly 652 via connecting holes 653, which take hydraulic oil from the working valve block 72 to the shuttle valve assembly 65222. The control unit 723 is a control handle, and the opening degree of the valve is changed by manually operating the control handle, thereby changing the working oil pressure of the working unit 722, that is, the working oil pressure of the hydraulic motor to which the working unit 722 is connected.

It should be noted that the eight hydraulic motors are divided into two groups due to two different working states of lifting and luffing, and each four hydraulic motors are divided into one group. The two sets of operating conditions cannot be performed simultaneously, so that when one of the four hydraulic motors is operated, the other set of four hydraulic motors is not operated. The second pressure taps 7223 corresponding to one set of four hydraulic motors are connected to the four first input connectors 65212, respectively, and the second pressure taps 7223 corresponding to the other set of four hydraulic motors are connected to the four second input connectors 65213, respectively, to take hydraulic oil from the working assemblies 722 corresponding to the eight hydraulic motors to the shuttle valve assembly 652.

As shown in fig. 11, the hydraulic oil of the first input joint 65212 and the second input joint 65213 is output to the partial pressure gauge 613 and the partial pressure sensor 65232, respectively, after passing through the shuttle valve 65222. Since the working pressure of the hydraulic motors in the non-working group is zero, no hydraulic oil flows through the first input connector 65212 or the second input connector 65213, the hydraulic oil is compared and output through the shuttle valve 65222 and then is output to the corresponding partial pressure output connector 65223 and the partial pressure sensor 65232, the hydraulic oil output to the partial pressure output connector 65223 and the partial pressure sensor 65232 is the hydraulic oil of the hydraulic motor in working, the partial pressure output connector 65223 is connected with the corresponding partial pressure gauge 613, the partial pressure gauge 613 displays the corresponding pressure value, the partial pressure sensor 65232 is connected with the hub 651, the hub 651 collects the partial pressure signal, and the hub 651 is connected with the centralized control display screen 611, so that the monitoring of the working oil pressure of the hydraulic motors by the centralized control display screen 611 is realized. The hydraulic oil of the total pressure input connector 65211 is respectively output to the total pressure output connector 65221 and the total pressure sensor 65231, the total pressure output connector 65221 is connected with the total pressure gauge 612 through an oil pipe, the total pressure gauge 612 displays a corresponding pressure value, meanwhile, the total pressure sensor 65231 converts an oil pressure signal into an electric signal, the electric signal is transmitted to the centralized control display screen 611 through the hub 651, and the centralized control display screen 611 monitors the working oil pressure of the pump side module 71. The use of the integrated shuttle valve member 652 reduces the number of pressure gauges and oil pressure sensors and eliminates the need for each hydraulic motor to be correspondingly coupled to one pressure gauge and one oil pressure sensor.

The above is an explanation of the structure of the centralized control type hydraulic pump station, and the working principle of the centralized control type hydraulic pump station is explained below by combining the structure of the centralized control type hydraulic pump station.

Firstly, hydraulic oil is located in an oil tank 5, a power device 2 drives a hydraulic pump 4 to take the hydraulic oil in the oil tank 5 into a load proportion multi-way valve 7, the load proportion multi-way valve 7 is connected with a hydraulic motor, the load proportion multi-way valve 7 controls the oil quantity of the hydraulic motor by controlling the opening degree of a valve, and the horsepower of the hydraulic motor is determined by the oil quantity of the hydraulic motor. The oil pressure in the load proportion multi-way valve 7 is equal to the working oil pressure of the hydraulic motor correspondingly connected with the load proportion multi-way valve, and the load proportion multi-way valve 7 is connected with the control box 6, so that the control box 6 monitors the working oil pressure of the hydraulic motor through monitoring the oil pressure in the load proportion multi-way valve 7. The devices are reasonably arranged on the frame 1 to form a centralized control type hydraulic pump station, and the hydraulic pump station has compact structure and convenient circuit connection.

It should be noted that, the load proportion multiway valve 7 has two modes of electric control and manual control, wherein the manual control mode is to change the opening of the valve by toggling the control component 723, the change of the opening of the valve causes the change of the oil pressure in the working component 722, and the working component 722 is connected with the hydraulic motor, so as to further change the working oil pressure of the hydraulic motor and realize the control of the hydraulic motor; the electric control mode is that the control signal is sent out through the centralized control display screen 611 to control the electric control component 721, after the electric control component 721 receives the control signal, the valve opening is changed, the change of the valve opening causes the change of the oil pressure in the working component 722, and the working component 722 is connected with the hydraulic motor, so that the working oil pressure of the hydraulic motor is further changed, and the control of the hydraulic motor is realized.

The utility model discloses a centralized control type hydraulic pump station, which comprises a power device, a hydraulic pump, an oil tank, a control box and a load proportion multi-way valve, wherein the power device, the hydraulic pump, the oil tank, the control box and the load proportion multi-way valve are arranged on a frame, the power device is connected with the hydraulic pump, the hydraulic pump is respectively connected with the oil tank and the load proportion multi-way valve through an oil pipe, the power device drives the hydraulic pump to take hydraulic oil in the oil tank into the load proportion multi-way valve, the load proportion multi-way valve is connected with the hydraulic motor, hydraulic oil is output to the hydraulic motor, the oil pressure in the hydraulic motor is controlled through the load proportion multi-way valve, the load proportion multi-way valve is connected with an oil way of the control box and is electrically connected with the control box, and the control box monitors and regulates the working oil pressure of the hydraulic motor.

The foregoing is only illustrative of the present utility model and is not to be construed as limiting the scope of the utility model, and all equivalent structural changes made by the present utility model and the accompanying drawings, or direct or indirect application in other related technical fields, are included in the scope of the present utility model.

Claims (10)

1. The centralized control type hydraulic pump station is characterized by comprising a power device, a hydraulic pump, an oil tank, a control box and a load proportion multi-way valve, wherein the power device, the hydraulic pump, the oil tank, the control box and the load proportion multi-way valve are arranged on a rack, the load proportion multi-way valve is used for controlling a plurality of hydraulic motors, the control box and the load proportion multi-way valve are arranged on the upper side of the front end of the rack, the hydraulic pump and the power device are arranged on the lower side of the rear end of the rack, and the oil tank is arranged close to the load proportion multi-way valve and the hydraulic pump; the power device is connected with the hydraulic pump and is used for driving the hydraulic pump to operate; the hydraulic pump is respectively connected with the oil tank and the load proportion multi-way valve through oil pipes and is used for outputting hydraulic oil in the oil tank to the load proportion multi-way valve; the load proportion multi-way valve is connected with the oil circuit of the control box and electrically connected with the oil circuit of the control box, and the control box is used for monitoring and regulating the oil pressure of a plurality of hydraulic motors.

2. The centralized control type hydraulic pump station according to claim 1, wherein the load ratio multi-way valve comprises a pump side module and a plurality of working valve groups, the pump side module is respectively connected with the hydraulic pump and the oil tank through oil pipes, and the plurality of working valve groups are used for connecting a plurality of hydraulic motors.

3. The centralized control type hydraulic pump station according to claim 2, wherein the pump side module comprises a pressure oil port and an oil return port, the pressure oil port is connected with the hydraulic pump through an oil pipe, and the oil return port is connected with an oil inlet of the oil tank through an oil pipe.

4. A centralized control type hydraulic pump station as claimed in claim 3, wherein the pump side module further comprises a first pressure measuring port, the first pressure measuring port is arranged at the bottom of the pump side module, and the first pressure measuring port is connected with the control box through an oil pipe.

5. The centralized control hydraulic pump station of claim 4, wherein each working valve group comprises an electrical control assembly, a working assembly, and a control assembly, the electrical control assembly being electrically connected to the control box; the working assembly comprises a first working oil port, a second working oil port and a second pressure measuring port, wherein the first working oil port and the second working oil port are respectively used for connecting an oil inlet and an oil outlet of the hydraulic motor, and the second pressure measuring port is connected with the control box through an oil pipe; the control assembly is used for manually controlling the oil pressure of the working assembly.

6. The centralized control hydraulic pump station of claim 5, wherein the control box comprises a front panel, a left side panel, a right side panel, a rear panel, a bottom panel, a hub for terminating a cable, an integrated shuttle valve member for collecting and outputting pressure signals, and a remote control receiver for transmitting remote control signals, the hub and the integrated shuttle valve member being disposed on the bottom panel, the remote control receiver being disposed on the left side panel, the hub being electrically connected to the integrated shuttle valve member and the remote control receiver, respectively; the front panel is provided with a plurality of oil pressure gauges and centralized control display screens, the oil pressure gauges are respectively connected with the integrated shuttle valve piece through oil pipes, and the centralized control display screens are electrically connected with the hub.

7. The centralized control type hydraulic pump station according to claim 6, wherein the integrated shuttle valve member comprises an input end, a first output end and a second output end, the input end is provided with a plurality of input joints for collecting oil pressure, and the plurality of input joints are respectively connected with the first pressure measuring port and the plurality of second pressure measuring ports through oil pipes; the first output end is provided with a plurality of shuttle valves and a plurality of output connectors, the shuttle valves are used for oil pressure comparison, and the output connectors are respectively connected with the oil pressure gauges through oil pipes; the second output end is provided with a plurality of oil pressure sensors, and a plurality of oil pressure sensors are respectively and electrically connected with the hub.

8. The centralized control type hydraulic power unit as claimed in claim 7, wherein an oil return filter for filtering impurities in hydraulic oil, an air filter for filtering impurities in air, an oil temperature liquid level meter, an oil tank oil inlet, an oil tank oil outlet and an oil tank oil drain port are arranged on the oil tank, the oil tank oil inlet is arranged at the oil return filter, the air filter and the oil temperature liquid level meter are arranged on the upper portion of the oil tank, the oil temperature liquid level meter is electrically connected with the hub, the oil tank oil inlet is connected with the oil return port through an oil pipe, the oil tank oil outlet is connected with the hydraulic pump through an oil pipe, and the oil tank oil drain port is used for connecting with an oil drain port of a hydraulic motor.

9. The centralized control type hydraulic pump station according to claim 8, wherein the hydraulic pump comprises a power shaft, an oil pump inlet, an oil pump outlet and a control oil port, the power shaft is connected with the power device, the oil pump inlet is connected with the oil tank outlet through an oil pipe, the oil pump outlet is connected with the pressure oil port through an oil pipe, and the control oil port is connected with the load proportion multi-way valve through an oil pipe.

10. The centralized control type hydraulic power unit as claimed in claim 1, further comprising an air-cooled radiator fixedly arranged on the front side of the frame and close to the oil tank, wherein the air-cooled radiator is electrically connected with the control box.