Buried vertically-divided horizontal compression station hydraulic-electric system

Abstract

The utility model discloses a hydraulic-electric system of a buried vertically-divided horizontal compression station, and belongs to the technical field of hydraulic pressure. The system comprises an oil tank assembly, and the oil tank assembly comprises an oil tank and a duplex pump communicated with the oil tank; the double pump is connected with a first reversing valve, a second reversing valve, a third reversing valve, a fourth reversing valve, a fifth reversing valve and a sixth reversing valve; the first reversing valve is connected with four platform lifting oil cylinders, and a synchronous motor and an electromagnetic valve group are arranged between the first reversing valve and the platform lifting oil cylinders; the second reversing valve is connected with two compression oil cylinders; the third reversing valve is connected with two machine head lifting oil cylinders; the fourth reversing valve is connected with two machine head flip oil cylinders; the fifth reversing valve is connected with a platform bolt oil cylinder; and the sixth reversing valve is connected with a box body sliding cover oil cylinder. The lifting platform has the advantage of facilitating stable lifting of the lifting platform.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic pressure, in particular to an underground vertically divided horizontal compression station hydraulic and electrical system. Background Art

[0002] The prior art discloses a hydraulic-electric system for underground garbage compression equipment, with authorization announcement number CN220081814U and authorization announcement date 20231124. The prior art controls the lifting cylinder of the lifting platform separately through the first oil pump and the first oil circuit. Driven by the first oil pump, the lifting cylinder performs high-pressure slow-forward movement. The second oil pump supplies the second oil circuit separately, and uses the second reversing valve, the third reversing valve, the fourth reversing valve, the fifth reversing valve, the sixth reversing valve and the seventh reversing valve to correspondingly control the mobile box compression cylinder, the platform cover cylinder, the compression box sliding cover cylinder, the feeding port cover cylinder, the bucket lifting cylinder and the bucket turning cylinder, so that the mobile box compression cylinder and the platform cover cylinder are , the compression box sliding cover cylinder, the feeding port cover cylinder, the bucket lifting cylinder and the bucket turning cylinder make low-pressure fast-forward movement, which will not cause the valve group to overload and ensure the safe operation of the hydraulic system; however, the existing technology mainly has the following problems: the existing technology realizes the raising and lowering of the lifting platform through the lifting cylinder, and adopts a large oil pump for high-pressure slow advance. Due to the setting of multiple lifting cylinders, the first reversing valve is directly connected to each lifting cylinder, so that the hydraulic oil is randomly distributed into each lifting cylinder, resulting in the amount of hydraulic oil entering each lifting cylinder being not uniform, so that the synchronous lifting of multiple lifting cylinders cannot be achieved, which further leads to the lifting of the lifting platform being not smooth enough. Utility Model Content

[0003] The utility model aims to provide a stably rising and falling underground vertically divided horizontal compression station hydraulic and electrical system.

[0004] In order to achieve the above-mentioned purpose of the utility model, the utility model adopts the following technical solutions for the underground vertically divided horizontal compression station hydraulic and electrical system:

[0005] A buried vertically divided horizontal compression station hydraulic and electrical system, including an oil tank assembly; the oil tank assembly includes an oil tank, and also includes a double pump connected to the oil tank; the double pump includes a large oil pump and a small oil pump, the large oil pump is connected to the main oil circuit through a first oil circuit, and the small oil pump is connected to the main oil circuit through a second oil circuit, and the first oil circuit and the second oil circuit are arranged in parallel; the double pump is connected to a first reversing valve, a second reversing valve, a third reversing valve, a fourth reversing valve, a fifth reversing valve and a sixth reversing valve, the first and sixth reversing valves are both Y-type three-position four-way reversing valves, and the second, third, fourth and fifth reversing valves are all O-type three-position four-way reversing valves; the P oil ports of the first, second, third, fourth, fifth and sixth reversing valves are connected in parallel to the main oil circuit, and the T oil ports of the first, second, third, fourth, fifth and sixth reversing valves are connected in parallel to the main oil circuit. It is connected in parallel to the main oil return circuit connected to the oil tank, and an unloading valve is arranged between the main oil circuit and the main oil return circuit; the first reversing valve is connected to four platform lifting cylinders, the rod chamber of the platform lifting cylinder is connected to the A oil port of the first reversing valve, and the rodless chamber of the platform lifting cylinder is connected to the B oil port of the first reversing valve. A synchronous motor and an electromagnetic valve group are arranged between the first reversing valve and the platform lifting cylinder. The synchronous motor includes four motors, each of which is provided with an oil inlet and an oil outlet, two of which are arranged on the driving shaft, and the two motors are respectively arranged at both ends of the driving shaft; the other two motors are arranged on the driven shaft, and the two motors are respectively arranged at both ends of the driven shaft; the driving shaft is provided with a driving gear, and the driven shaft is provided with a driven gear, and the driving gear and the driven gear are meshed for transmission; the electromagnetic valve group includes The invention comprises four solenoid valves, all of which are two-position two-way solenoid valves; the four platform lifting cylinders are connected to the four solenoid valves one-to-one, the solenoid valves are connected to the rodless chamber of the platform lifting cylinder, the four solenoid valves are connected to the oil outlets of the four motors one-to-one, and the oil inlets of the four motors are connected to the B oil port of the first reversing valve; the second reversing valve is connected to two compression cylinders, the rod chamber of the compression cylinder is connected to the B oil port of the second reversing valve, and the rodless chamber of the compression cylinder is connected to the A oil port of the second reversing valve; the third reversing valve is connected to two head lifting cylinders, the rod chamber of the head lifting cylinder is connected to the B oil port of the third reversing valve, and the rodless chamber of the head lifting cylinder is connected to the A oil port of the third reversing valve; the fourth reversing valve is connected to two head flip cylinders, and the head flip cylinders The rod chamber is connected to the B oil port of the fourth reversing valve, and the rodless chamber of the head flip cover cylinder is connected to the A oil port of the fourth reversing valve; the fifth reversing valve is connected to the platform latch cylinder, the rod chamber of the platform latch cylinder is connected to the B oil port of the fifth reversing valve, and the rodless chamber of the platform latch cylinder is connected to the A oil port of the fifth reversing valve; the sixth reversing valve is connected to the box slide cover cylinder, the rod chamber of the box slide cover cylinder is connected to the B oil port of the sixth reversing valve, and the rodless chamber of the box slide cover cylinder is connected to the A oil port of the sixth reversing valve; one-way throttle valves are provided between the first reversing valve and the platform lifting cylinder, between the third reversing valve and the head lifting cylinder, between the fourth reversing valve and the head flip cover cylinder, between the fifth reversing valve and the platform latch cylinder, and between the sixth reversing valve and the box flip cover.

[0006] Preferably, the first oil circuit is provided with a first oil outlet one-way valve, and the second oil circuit is provided with a second oil outlet one-way valve.

[0007] Preferably, the first oil circuit is provided with a first pipeline between the first oil outlet one-way valve and the large oil pump, and the second oil circuit is provided with a second pipeline between the second oil outlet one-way valve and the small oil pump. The first pipeline and the second pipeline are connected in parallel to the secondary return oil circuit, and the secondary return oil circuit is connected to the oil tank; the first pipeline is provided with a first electromagnetic overflow valve, and the second pipeline is provided with a second electromagnetic overflow valve.

[0008] Preferably, an air cooler is provided on the pipeline between the secondary oil return circuit and the oil tank.

[0009] Preferably, a first hydraulic lock is provided between the third reversing valve and the machine head lifting cylinder.

[0010] Preferably, a second hydraulic lock is provided between the fourth reversing valve and the machine head flip cover cylinder.

[0011] Preferably, the unloading valve is a two-position four-way solenoid valve.

[0012] Preferably, the motor is provided with an oil drain port, and the oil drain port of the motor is connected to the main oil return circuit.

[0013] Preferably, a first oil return check valve is provided on the pipeline connecting the T oil port of the first reversing valve and the main oil return circuit, a second oil return check valve is provided on the pipeline connecting the oil drain ports of the four motors and the main oil return circuit, and a third oil return check valve is provided on the pipeline connecting the T oil port of the sixth reversing valve and the main oil return circuit.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. The utility model controls the synchronous extension and retraction of the four platform lifting cylinders by setting a synchronous motor, so that the four platform lifting cylinders can synchronously raise and lower the lifting platform, ensuring the stability of the lifting platform during movement, and is practical;

[0016] 2. The utility model is provided with a solenoid valve group connected to the synchronous motor, and the solenoid valve group includes four two-position two-way solenoid valves. The two-position two-way solenoid valves have a check function. After closing the channel, the solenoid valve can prevent the hydraulic oil from flowing back, thereby ensuring that the lifting platform is stable at a suitable height;

[0017] 3. The utility model selects a large oil pump or a small oil pump to work according to the working pressure to prevent overload and ensure the stability of the system; wherein, a large oil pump is adopted to control the action of the platform lifting cylinder, and the platform lifting cylinder can perform a high-pressure slow-forward action; at the same time, a small oil pump is used to control the compression cylinder, the head lifting cylinder, the head flip cover cylinder, the platform latch cylinder and the box slide cover cylinder to perform a low-pressure fast-forward action, and the compression cylinder performs fast and efficient actions when compressing garbage, thereby improving the efficiency of garbage compression. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is the hydraulic principle diagram of the utility model;

[0019] Figure 2 for Figure 1 A magnified view of part A;

[0020] Figure 3 for Figure 1 A magnified view of part B;

[0021] Figure 4 for Figure 2 Enlarged view of part C;

[0022] Figure 5 for Figure 2 A magnified view of the D portion;

[0023] Figure 6 for Figure 2 A magnified view of part E;

[0024] Figure 7 A schematic diagram of the structure of a synchronous motor.

[0025] Among them, 1 oil tank, 2 large oil pump, 3 small oil pump, 4 first oil circuit, 5 second oil circuit, 6 first oil outlet check valve, 7 second oil outlet check valve, 8 main oil circuit, 9 unloading valve, 10 first return oil check valve, 11 second return oil check valve, 12 first reversing valve, 13 one-way throttle valve, 14 synchronous motor, 14a motor, 14b driving shaft, 14c driven shaft, 14d driving gear, 14e driven gear, 14f oil inlet, 14g oil outlet, 14h oil drain, 15 solenoid valve group, 16 platform Lifting cylinder, 17 compression cylinder, 18 head lifting cylinder, 19 head flip cylinder, 20 platform latch cylinder, 21 box slide cylinder, 22 second reversing valve, 23 third reversing valve, 24 first hydraulic lock, 25 fourth reversing valve, 26 second hydraulic lock, 27 fifth reversing valve, 28 sixth reversing valve, 29 third return oil check valve, 30 main return oil circuit, 31 second electromagnetic overflow valve, 32 second pipeline, 33 first electromagnetic overflow valve, 34 first pipeline, 35 air cooler, 36 secondary return oil circuit. DETAILED DESCRIPTION

[0026] The present invention is further explained below in conjunction with specific implementation methods. It should be understood that these implementation methods are only used to illustrate the present invention and are not used to limit the scope of the present invention. After reading the present invention, various equivalent forms of modifications to the present invention by those skilled in the art all fall within the scope defined by the claims attached to this application.

[0027] like Figure 1-7As shown, a buried vertically divided horizontal compression station hydraulic and electrical system includes an oil tank assembly; the oil tank assembly 1 includes an oil tank 1, and also includes a double pump connected to the oil tank 1; the double pump includes a large oil pump 2 and a small oil pump 3, the large oil pump 2 is connected to the main oil circuit 8 through a first oil circuit 4, and the small oil pump 3 is connected to the main oil circuit 8 through a second oil circuit 5, and the first oil circuit 4 and the second oil circuit 5 are arranged in parallel; the double pump is connected to a first reversing valve 12, a second reversing valve 22, a third reversing valve 23, a fourth reversing valve 25, a fifth reversing valve 27 and a sixth reversing valve 28, the first and sixth reversing valves 28 are both Y-type three-position four-way reversing valves, and the second, third, fourth and fifth reversing valves 27 are all O-type three-position four-way reversing valves; the first, second, third, fourth, fifth and sixth reversing valves 28 are both Y-type three-position four-way reversing valves. The P oil ports of the six reversing valves are connected in parallel to the main oil circuit 8, and the T oil ports of the first, second, third, fourth, fifth and sixth reversing valves 28 are connected in parallel to the main oil return circuit 30 connected to the oil tank 1. An unloading valve 9 is arranged between the main oil circuit 8 and the main oil return circuit 30, and the unloading valve 9 is a two-position four-way solenoid valve; the first reversing valve 12 is connected to four platform lifting cylinders 16, and the rod chamber of the platform lifting cylinder 16 is connected to the A oil port of the first reversing valve 12, and the rodless chamber of the platform lifting cylinder 16 is connected to the B oil port of the first reversing valve 12. A synchronous motor 14 and a solenoid valve group 15 are arranged between the first reversing valve 12 and the platform lifting cylinder 16. The synchronous motor 14 includes four motors 14a, and each motor 14a is provided with an oil inlet 14f and an oil outlet 14g, wherein two motors 14a are arranged on a driving shaft 14b, and the two motors 14a are respectively arranged at both ends of the driving shaft 14b; the other two motors 14a are arranged on a driven shaft 14c, and the two motors 14a are respectively arranged at both ends of the driven shaft 14c; the driving shaft 14b is provided with a driving gear 14d, and the driven shaft 14c is provided with a driven gear 14e, and the driving gear 14d is meshed with the driven gear 14e for transmission; the solenoid valve group 15 includes four solenoid valves, and the four solenoid valves are all two-position two-way solenoid valves; the four platform lifting cylinders 16 are connected to the four solenoid valves one-to-one, and the solenoid valves are connected to the rodless chambers of the platform lifting cylinders 16, and the four solenoid valves are connected to the oil outlets 14g of the four motors 14a one-to-one, and the four motors 1 The oil inlet 14f of the motor 14a is connected to the B oil port of the first reversing valve 12; the motor 14a is provided with an oil drain port 14h, and the oil drain port 14h of the motor 14a is connected to the main oil return circuit 30; the pipeline connecting the T oil port of the first reversing valve 12 and the main oil return circuit 30 is provided with a first oil return check valve 10, the pipeline connecting the oil drain ports 14h of the four motors 14a and the main oil return circuit 30 is provided with a second oil return check valve 11, and the pipeline connecting the T oil port of the sixth reversing valve 28 and the main oil return circuit 30 is provided with a third oil return check valve 29; the second reversing valve 22 is connected to two compression cylinders 17, the rod chamber of the compression cylinder 17 is connected to the B oil port of the second reversing valve 22, and the rodless chamber of the compression cylinder 17 is connected to the A oil port of the second reversing valve 22;The third reversing valve 23 is connected to two machine head lifting cylinders 18, and a first hydraulic lock 24 is provided between the third reversing valve 23 and the machine head lifting cylinder 18. The rod chamber of the machine head lifting cylinder 18 is connected to the B oil port of the third reversing valve 23, and the rodless chamber of the machine head lifting cylinder 18 is connected to the A oil port of the third reversing valve 23; the fourth reversing valve 25 is connected to two machine head cover cylinders 19, and a second hydraulic lock 26 is provided between the fourth reversing valve 25 and the machine head cover cylinder 19. The rod chamber of the oil cylinder 19 is connected to the oil port B of the fourth reversing valve 25, and the rodless chamber of the oil cylinder 19 of the head cover is connected to the oil port A of the fourth reversing valve 25; the fifth reversing valve 27 is connected to the platform latch oil cylinder 20, and the rod chamber of the platform latch oil cylinder 20 is connected to the oil port B of the fifth reversing valve 27, and the rodless chamber of the platform latch oil cylinder 20 is connected to the oil port A of the fifth reversing valve 27; the sixth reversing valve 28 is connected to the box slide cover oil cylinder 21, and the rod chamber of the box slide cover oil cylinder 21 is connected to the sixth reversing valve 2 The B oil port of 8, the rodless chamber of the box slide cover oil cylinder 21 is connected to the A oil port of the sixth reversing valve 28; a one-way throttle valve 13 is provided between the first reversing valve 12 and the platform lifting oil cylinder 16, between the third reversing valve 23 and the machine head lifting oil cylinder 18, between the fourth reversing valve 25 and the machine head flip cover oil cylinder 19, between the fifth reversing valve 27 and the platform latch oil cylinder 20, and between the sixth reversing valve 28 and the box flip cover; the first oil circuit 4 is provided with a first oil outlet one-way valve 6, and the second oil circuit 5 is provided with a second oil outlet One-way valve 7; the first oil circuit 4 is provided with a first pipeline 34 between the first oil outlet one-way valve 6 and the large oil pump 2, the second oil circuit 5 is provided with a second pipeline 32 between the second oil outlet one-way valve 7 and the small oil pump 3, the first pipeline 34 and the second pipeline 32 are connected in parallel to the secondary return oil circuit 36, and the secondary return oil circuit 36 ​​is connected to the oil tank 1; the first pipeline 34 is provided with a first electromagnetic overflow valve 33, and the second pipeline 32 is provided with a second electromagnetic overflow valve 31; the pipeline between the secondary return oil circuit 36 ​​and the oil tank 1 is provided with an air cooler 35. ;

[0028] The specific working process and principle of this utility model:

[0029] The 1DT end of the first electromagnetic overflow valve, the 14DT end of the first reversing valve, and the 15DT end, 16DT end, 17DT end, and 18DT end of the electromagnetic valve group are energized, and the platform lifting cylinder 16 is pushed out; specifically, the oil of the large oil pump 2 enters the main oil circuit 8 through the first oil outlet check valve 6, and then enters the rodless chamber of the platform lifting cylinder 16 from the PB oil port of the first reversing valve 12 through the synchronous motor 14 and the electromagnetic valve group 15 in sequence. The oil in the rod chamber of the platform lifting cylinder 16 enters the main oil return circuit 30 through the AT oil port of the first reversing valve 12, and finally returns to the oil tank 1. At this time, the platform lifting cylinder 16 pushes the lifting platform up;

[0030] The 1DT end of the first electromagnetic overflow valve, the 13DT end of the first reversing valve, and the 15DT end, 16DT end, 17DT end, and 18DT end of the electromagnetic valve group are energized, and the platform lifting cylinder 16 returns; specifically, the oil of the large oil pump 2 enters the main oil circuit 8 through the first oil outlet check valve 6, and then enters the rod chamber of the platform lifting cylinder 16 from the PA oil port of the first reversing valve 12. The oil in the rodless chamber of the platform lifting cylinder 16 passes through the synchronous motor 14 and the electromagnetic valve group 15 in turn, and enters the main return oil circuit 30 through the BT oil port of the first reversing valve 12, and finally returns to the oil tank 1. At this time, the platform lifting cylinder 16 pushes the lifting platform down;

[0031] The 2DT end of the second electromagnetic overflow valve and the 3DT end of the second reversing valve are energized, and the compression cylinder 17 is compressed; specifically, the oil of the small oil pump 3 enters the main oil circuit 8 through the second oil outlet check valve 7, and then enters the rodless chamber of the compression cylinder 17 from the PA oil port of the second reversing valve 22, and the oil in the rod chamber of the compression cylinder 17 enters the main return oil circuit 30 from the BT oil port of the second reversing valve 22, and finally returns to the oil tank 1. At this time, the compression cylinder 17 is pushed out to compress the garbage;

[0032] The 2DT end of the second electromagnetic overflow valve and the 4DT end of the second reversing valve are energized, and the compression cylinder 17 returns; specifically, the oil of the small oil pump 3 enters the main oil circuit 8 through the second oil outlet check valve 7, and then enters the rod chamber of the compression cylinder 17 from the PB oil port of the second reversing valve 22, and the oil in the rodless chamber of the compression cylinder 17 enters the main return oil circuit 30 from the AT oil port of the second reversing valve 22, and finally returns to the oil tank 1. At this time, the compression cylinder 17 returns;

[0033] The 19DT terminal of the unloading valve is energized, and the compression cylinder 17 is depressurized: specifically, the oil of the small oil pump 3 enters the main oil circuit 8 through the second oil outlet check valve 7, and then directly returns to the main oil return circuit 30 from the unloading valve 9 and enters the oil tank 1;

[0034] The 2DT end of the second electromagnetic overflow valve and the 5DT end of the third reversing valve are energized, and the head lifting cylinder 18 is pushed out; specifically, the oil of the small oil pump 3 enters the main oil circuit 8 through the second oil outlet check valve 7, and then enters the rodless chamber of the head lifting cylinder 18 from the PA oil port of the third reversing valve 23, and the oil in the rod chamber of the head lifting cylinder 18 enters the main oil return circuit 30 from the BT oil port of the third reversing valve 23, and finally returns to the oil tank 1. At this time, the head lifting cylinder 18 is pushed out;

[0035] The 2DT end of the second electromagnetic overflow valve and the 6DT end of the third reversing valve are energized, and the head lifting cylinder 18 returns; specifically, the oil of the small oil pump 3 enters the main oil circuit 8 through the second oil outlet check valve 7, and then enters the rod chamber of the head lifting cylinder 18 from the PB oil port of the third reversing valve 23, and the oil in the rodless chamber of the head lifting cylinder 18 enters the main return oil circuit 30 from the AT oil port of the third reversing valve 23, and finally returns to the oil tank 1. At this time, the head lifting cylinder 18 returns;

[0036] The 2DT end of the second electromagnetic relief valve and the 7DT end of the fourth reversing valve are energized, and the head cover cylinder 19 is pushed out;

[0037] The 2DT end of the second electromagnetic relief valve and the 8DT end of the fourth reversing valve are energized, and the head cover cylinder 19 returns;

[0038] The 2DT end of the second electromagnetic relief valve and the 9DT end of the fifth reversing valve are energized, and the platform latch cylinder 20 is pushed out;

[0039] The 2DT of the second electromagnetic relief valve and the 10DT of the fifth reversing valve are energized, and the platform latch cylinder 20 returns;

[0040] The 2DT end of the second electromagnetic relief valve and the 11DT end of the sixth reversing valve are energized, and the box slide cover cylinder 21 is pushed out;

[0041] The 2DT end of the second electromagnetic relief valve and the 12DT end of the sixth reversing valve are energized, and the box slide cover cylinder 21 returns;

[0042] Here, the principles of pushing out and returning the head lifting cylinder 18, the head cover cylinder 19, the platform latch cylinder 20 and the box slide cover cylinder 21 are the same and will not be repeated.

[0043] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0044] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0045] The above description shows and describes the preferred embodiments of the utility model. As mentioned above, it should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the utility model concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not depart from the spirit and scope of the utility model, and should be within the scope of protection of the claims attached to the utility model.

Claims

1. An underground vertically divided horizontal compression station hydraulic and electrical system, characterized in that: It includes a fuel tank assembly; the fuel tank assembly includes a fuel tank and also includes a double pump connected to the fuel tank; the double pump includes a large fuel pump and a small fuel pump, the large fuel pump is connected to the main fuel circuit through a first fuel circuit, the small fuel pump is connected to the main fuel circuit through a second fuel circuit, and the first fuel circuit and the second fuel circuit are arranged in parallel; the double pump is connected to a first reversing valve, a second reversing valve, a third reversing valve, a fourth reversing valve, a fifth reversing valve and a sixth reversing valve, the first and sixth reversing valves are both Y-type three-position four-way reversing valves, and the second, third, fourth and fifth reversing valves are both O-type three-position four-way reversing valves; the P oil ports of the first, second, third, fourth, fifth and sixth reversing valves are connected in parallel to the main fuel circuit, and the T oil ports of the first, second, third, fourth, fifth and sixth reversing valves are connected in parallel to the main return oil circuit connected to the fuel tank , an unloading valve is arranged between the main oil circuit and the main return oil circuit; the first reversing valve is connected to four platform lifting cylinders, the rod chamber of the platform lifting cylinder is connected to the A oil port of the first reversing valve, and the rodless chamber of the platform lifting cylinder is connected to the B oil port of the first reversing valve. A synchronous motor and an electromagnetic valve group are arranged between the first reversing valve and the platform lifting cylinder. The synchronous motor includes four motors, each of which is provided with an oil inlet and an oil outlet, two of which are arranged on the driving shaft, and the two motors are respectively arranged at both ends of the driving shaft; the other two motors are arranged on the driven shaft, and the two motors are respectively arranged at both ends of the driven shaft; the driving shaft is provided with a driving gear, and the driven shaft is provided with a driven gear, and the driving gear and the driven gear are meshed for transmission; the electromagnetic valve group includes four electromagnetic valves, four All the solenoid valves are two-position two-way solenoid valves; the four platform lifting cylinders are connected to the four solenoid valves one-to-one, the solenoid valves are connected to the rodless chambers of the platform lifting cylinders, the four solenoid valves are connected to the oil outlets of the four motors one-to-one, and the oil inlets of the four motors are connected to the B oil port of the first reversing valve; the second reversing valve is connected to two compression cylinders, the rod chamber of the compression cylinder is connected to the B oil port of the second reversing valve, and the rodless chamber of the compression cylinder is connected to the A oil port of the second reversing valve; the third reversing valve is connected to two head lifting cylinders, the rod chamber of the head lifting cylinder is connected to the B oil port of the third reversing valve, and the rodless chamber of the head lifting cylinder is connected to the A oil port of the third reversing valve; the fourth reversing valve is connected to two head flip cylinders, and the rod chamber of the head flip cylinder is connected to The rodless chamber of the machine head cover oil cylinder is connected to the A oil port of the fourth reversing valve; the fifth reversing valve is connected to the platform latch oil cylinder, the rod chamber of the platform latch oil cylinder is connected to the B oil port of the fifth reversing valve, and the rodless chamber of the platform latch oil cylinder is connected to the A oil port of the fifth reversing valve; the sixth reversing valve is connected to the box slide cover oil cylinder, the rod chamber of the box slide cover oil cylinder is connected to the B oil port of the sixth reversing valve, and the rodless chamber of the box slide cover oil cylinder is connected to the A oil port of the sixth reversing valve; one-way throttle valves are provided between the first reversing valve and the platform lifting cylinder, between the third reversing valve and the machine head lifting cylinder, between the fourth reversing valve and the machine head cover oil cylinder, between the fifth reversing valve and the platform latch oil cylinder, and between the sixth reversing valve and the box cover.

2. The underground vertically divided horizontal compression station hydraulic and electrical system according to claim 1 is characterized in that: The first oil circuit is provided with a first oil outlet one-way valve, and the second oil circuit is provided with a second oil outlet one-way valve.

3. The underground vertically divided horizontal compression station hydraulic and electrical system according to claim 2 is characterized in that: The first oil circuit is located between the first oil outlet one-way valve and the large oil pump and is provided with a first pipeline, the second oil circuit is located between the second oil outlet one-way valve and the small oil pump and is provided with a second pipeline, the first pipeline and the second pipeline are connected in parallel to the secondary return oil circuit, and the secondary return oil circuit is connected to the oil tank; the first pipeline is provided with a first electromagnetic overflow valve, and the second pipeline is provided with a second electromagnetic overflow valve.

4. The underground vertically divided horizontal compression station hydraulic and electrical system according to claim 3 is characterized by: An air cooler is arranged on the pipeline between the secondary oil return circuit and the oil tank.

5. The underground vertically divided horizontal compression station hydraulic and electrical system according to claim 1 is characterized in that: A first hydraulic lock is provided between the third reversing valve and the machine head lifting oil cylinder.

6. The underground vertically divided horizontal compression station hydraulic and electrical system according to claim 1 is characterized in that: A second hydraulic lock is provided between the fourth reversing valve and the machine head cover cylinder.

7. The underground vertically divided horizontal compression station hydraulic and electrical system according to claim 1 is characterized in that: The unloading valve is a two-position four-way solenoid valve.

8. The underground vertically divided horizontal compression station hydraulic and electrical system according to claim 1 is characterized in that: The motor is provided with an oil drain port, and the oil drain port of the motor is connected to the main oil return circuit.

9. The underground vertically divided horizontal compression station hydraulic and electrical system according to claim 8 is characterized in that: A first oil return check valve is provided on the pipeline connecting the T oil port of the first reversing valve and the main oil return circuit, a second oil return check valve is provided on the pipeline connecting the oil drain ports of the four motors and the main oil return circuit, and a third oil return check valve is provided on the pipeline connecting the T oil port of the sixth reversing valve and the main oil return circuit.

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