An oil supply system

Abstract

The application provides an oil supply system, a gas source is communicated with a first gas-liquid booster pump and a second gas-liquid booster pump through a first gas inlet pipeline and a second gas inlet pipeline, a hydraulic oil tank is communicated with the first gas-liquid booster pump and the second gas-liquid booster pump through a first oil inlet pipeline and a second oil inlet pipeline, a first oil outlet pipeline is communicated with the first gas-liquid booster pump, a second oil outlet pipeline is communicated with the second gas-liquid booster pump, the first oil outlet pipeline is communicated with a dismounting device, the second oil outlet pipeline is communicated with a keyless connection structure of a tilting mechanism, the first gas-liquid booster pump is powered by compressed air provided by the gas source to boost hydraulic oil flowing into the first gas-liquid booster pump from the hydraulic oil tank, and the boosted hydraulic oil is discharged from the first oil outlet pipeline, the second gas-liquid booster pump is powered by compressed air provided by the gas source to boost hydraulic oil flowing into the second gas-liquid booster pump from the hydraulic oil tank, and the boosted hydraulic oil is discharged from the second oil outlet pipeline. The oil supply system is simple in structure.

Description

Technical Field

[0001] This invention relates to the field of keyless connection structure disassembly and assembly technology for tilting engines, and particularly to an oil supply system. Background Technology

[0002] The converter tilting mechanism is one of the main pieces of equipment in steelmaking, its primary function being to transmit torque during converter tilting. Currently, the four-point fully suspended tilting mechanism is the most widely used in major steel plants, with the maximum tilting capacity mostly ranging from 500 to 1000 tm depending on the converter tonnage. Currently, the connection between the large gear and trunnion of domestic converter tilting mechanisms uses a tangential key. With the development of converter technology, a keyless connection method for the large gear and trunnion of the converter tilting mechanism has been proposed. Using a keyless connection structure can save approximately 15-20 days of grinding time for the tangential key during on-site installation of the tilting mechanism; simultaneously, because the keyless connection hub and trunnion have no keyways, the structural strength can be increased by approximately 20%; the keyless connection method facilitates the disassembly and assembly of the tilting mechanism, making maintenance easier. This keyless connection structure of the tilting mechanism requires high-pressure hydraulic oil for disassembly and assembly, currently commonly supplied by a hydraulic pump station. However, the hydraulic pump station has a complex structure and is difficult to install and disassemble.

[0003] Therefore, it is necessary to develop an oil supply system to simplify the structure of the high-pressure hydraulic oil supply system and facilitate its disassembly and assembly. Summary of the Invention

[0004] The purpose of this invention is to provide an oil supply system to solve the problems of complex structure and difficult installation and disassembly of existing oil supply systems.

[0005] To solve the above-mentioned technical problems, the present invention provides an oil supply system for supplying oil to the keyless connection structure of a tilting machine and a disassembly / assembly device to disassemble / assemble the keyless connection structure of the tilting machine. The system includes an air source, a first air inlet pipe, a second air inlet pipe, a first air-hydraulic booster pump, a second air-hydraulic booster pump, a hydraulic oil tank, a first oil inlet pipe, a second oil inlet pipe, a first oil outlet pipe, and a second oil outlet pipe. The air source is connected to the first air-hydraulic booster pump through the first air inlet pipe, and the air source is connected to the second air-hydraulic booster pump through the second air inlet pipe. The hydraulic oil tank is connected to the first air-hydraulic booster pump through the first oil inlet pipe, and the hydraulic oil tank is connected to the second air-hydraulic booster pump through the second oil inlet pipe. The booster pump is connected, the first oil outlet pipe is connected to the first gas-hydraulic booster pump, the second oil outlet pipe is connected to the second gas-hydraulic booster pump, the first oil outlet pipe is connected to the disassembly and assembly device, and the second oil outlet pipe is connected to the keyless connection structure of the tilting mechanism. The first gas-hydraulic booster pump uses compressed air provided by the air source as power to boost the hydraulic oil flowing from the hydraulic oil tank into the first gas-hydraulic booster pump, and discharges the boosted hydraulic oil from the first oil outlet pipe. The second gas-hydraulic booster pump uses compressed air provided by the air source as power to boost the hydraulic oil flowing from the hydraulic oil tank into the second gas-hydraulic booster pump, and discharges the boosted hydraulic oil from the second oil outlet pipe.

[0006] Optionally, the keyless connection structure of the tilting mechanism includes a trunnion, an intermediate sleeve, and a large gear hub. The outer surface of the intermediate sleeve is conical, and the inner surface is cylindrical. The intermediate sleeve is fitted onto the trunnion. The large gear hub is mounted on the intermediate sleeve, and the inner circumferential surface of the large gear hub is conical. Multiple first oil grooves are formed on the outer surface of the intermediate sleeve, and multiple second oil grooves are formed on the inner circumferential surface of the large gear hub. The first oil grooves are arranged axially, and the second oil grooves are annular. An oil passage is also formed on the large gear hub, with one end connected to the second oil groove and the other end connected to the end face of the large gear hub. The second oil outlet pipe is connected to the oil passage.

[0007] Optionally, the disassembly and assembly device is used for disassembling and assembling the keyless connection structure of the tilting motor, including a hydraulic thruster, a gland, and connecting bolts. The hydraulic thruster includes a cylinder and a piston. The piston is disposed in the cylinder. The cylinder includes an inner ring bolt hole and an outer ring bolt hole arranged sequentially from the inside to the outside. The gland is located between the trunnion and the cylinder. The piston is located between the gland and the cylinder. The first oil outlet pipe is connected to the cylinder to drive the piston to move axially along the trunnion in the cylinder. The disassembly and assembly device has an installation state and a disassembly state: In the installation state, the front of the gland faces the end face of the trunnion and has a first gap, and the gland abuts against the large gear hub. The connecting bolt passes through the inner ring threaded hole and through the gland, and is threadedly connected to the trunnion. In the disassembly state, the back of the gland contacts the end face of the trunnion, and the gland has a second gap with the large gear hub. The connecting bolt passes through the outer ring threaded hole and is threadedly connected to the large gear hub.

[0008] Optionally, the first gas-liquid booster pump includes a first gas-liquid booster module, a first two-position five-way single-acting pneumatic directional valve, a first two-position two-way mechanical directional valve, a second two-position two-way mechanical directional valve, and two first check valves. The first gas-liquid booster module includes a first cylinder and a first piston. The first cylinder includes a first oil chamber and a first air chamber. The first piston includes a first piston portion and a first piston rod portion connected to the first piston portion. The first piston portion is disposed within the first air chamber, dividing the first air chamber into a first left air chamber and a first right air chamber. The first piston rod portion extends into the first oil chamber. The first oil inlet pipe and the first oil outlet pipe communicate with the first oil chamber. The first two-position two-way mechanical directional valve is disposed on the first left air chamber, and the second two-position two-way mechanical directional valve is disposed on the first right air chamber. The A port of the first two-position two-way mechanical directional valve is connected to the first air inlet pipe, and the B port is connected to the B port of the second two-position two-way mechanical directional valve and the air control port of the first two-position five-way single-acting pneumatic directional valve. The A port of the first two-position five-way single-acting pneumatic directional valve is connected to the first left air chamber, the B port of the first two-position five-way single-acting pneumatic directional valve is connected to the first right air chamber, the P port of the first two-position five-way single-acting pneumatic directional valve is connected to the first air inlet pipe, and the S and R ports of the first two-position five-way single-acting pneumatic directional valve are connected to the atmosphere. The two first check valves are respectively installed on the first oil inlet pipe and the first oil outlet pipe, so that when the first piston rod extends into the first oil chamber, the hydraulic oil is discharged from the first oil outlet pipe, and when the first piston rod retracts from the first oil chamber, the hydraulic oil enters the first oil chamber from the hydraulic oil tank.

[0009] Optionally, the first gas-liquid booster pump further includes a first exhaust throttle valve and a second exhaust throttle valve. The first exhaust throttle valve is installed on the pipe connecting the S port of the first two-position five-way single-acting pneumatic control directional valve to the atmosphere, and the second exhaust throttle valve is installed on the pipe connecting the R port of the first two-position five-way single-acting pneumatic control directional valve to the atmosphere.

[0010] Optionally, the second gas-liquid booster pump includes a second gas-liquid booster module, a second two-position five-way single-acting pneumatic directional valve, a third two-position two-way mechanical directional valve, a fourth two-position two-way mechanical directional valve, and two second check valves. The second gas-liquid booster module includes a second cylinder and a second piston. The second cylinder includes a second oil chamber and a second air chamber. The second piston includes a second piston portion and a second piston rod portion connected to the second piston portion. The second piston portion is disposed within the second air chamber, dividing the second air chamber into a second left air chamber and a second right air chamber. The second piston rod portion extends into the second oil chamber. The second oil inlet pipe and the second oil outlet pipe communicate with the second oil chamber. The third two-position two-way mechanical directional valve is disposed on the second left air chamber, and the fourth two-position two-way mechanical directional valve is disposed on the second right air chamber. The A port of the third two-position two-way mechanical directional valve is connected to the second air inlet pipe, and the B port is connected to the B port of the fourth two-position two-way mechanical directional valve and the air control port of the second two-position five-way single-acting pneumatic directional valve. The A port of the second two-position five-way single-acting pneumatic directional valve is connected to the second left air chamber, the B port of the second two-position five-way single-acting pneumatic directional valve is connected to the second right air chamber, the P port of the second two-position five-way single-acting pneumatic directional valve is connected to the second air inlet pipe, and the S and R ports of the second two-position five-way single-acting pneumatic directional valve are connected to the atmosphere. The two second check valves are respectively installed on the second oil inlet pipe and the second oil outlet pipe, so that when the second piston rod extends into the second oil chamber, the hydraulic oil is discharged from the second oil outlet pipe, and when the second piston rod retracts from the second oil chamber, the hydraulic oil enters the second oil chamber from the hydraulic oil tank.

[0011] Optionally, the second gas-liquid booster pump further includes a third exhaust throttle valve and a fourth exhaust throttle valve. The third exhaust throttle valve is installed on the pipe connecting the S port of the second two-position five-way single-acting pneumatic control directional valve to the atmosphere, and the fourth exhaust throttle valve is installed on the pipe connecting the R port of the second two-position five-way single-acting pneumatic control directional valve to the atmosphere.

[0012] Optionally, it also includes an intake manifold and an air source triplet, wherein the first intake pipe and the second intake pipe are connected to the air source through the intake manifold, and the air source triplet is disposed on the intake manifold.

[0013] Optionally, it also includes a first pressure regulating valve disposed on the first intake pipe, a second pressure regulating valve disposed on the second intake pipe, a first pressure gauge disposed on the first intake pipe, a second pressure gauge disposed on the second intake pipe, a third pressure gauge disposed on the first oil outlet pipe, a fourth pressure gauge disposed on the second oil outlet pipe, and a flow valve disposed on the intake manifold.

[0014] The oil supply system provided by this invention has the following beneficial effects:

[0015] By setting up a first pneumatic-hydraulic booster pump and a second pneumatic-hydraulic booster pump, and by using the two pneumatic-hydraulic booster pumps to pressurize the hydraulic oil flowing from the hydraulic oil tank into the first and second pneumatic-hydraulic booster pumps, pressurized hydraulic oil can be supplied to the keyless connection structure of the tilting motor and the disassembly and assembly device, respectively, for disassembly and assembly of the keyless connection structure of the tilting motor. Since only pneumatic-hydraulic booster pumps are used to supply pressurized hydraulic oil to the keyless connection structure of the tilting motor and the disassembly and assembly device, the structure of the oil supply system can be significantly reduced compared to the traditional pump station, making the disassembly and assembly of the oil supply system more convenient. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the oil supply system in an embodiment of the present invention;

[0017] Figure 2 This is a schematic diagram of the structure of the first gas-liquid booster pump in the oil supply system of this invention.

[0018] Explanation of reference numerals in the attached figures:

[0019] 100 - Air source; 210 - First air intake pipe; 220 - Second air intake pipe;

[0020] 300 - First gas-liquid booster pump; 310 - First gas-liquid booster module; 312 - First oil chamber; 314 - First left air chamber; 315 - First right air chamber; 317 - First piston section; 318 - First piston rod section; 320 - First two-position five-way single-acting pneumatic directional valve; 330 - First two-position two-way mechanical directional valve; 340 - Second two-position two-way mechanical directional valve; 350 - First check valve; 360 - First exhaust throttle valve; 370 - Second exhaust throttle valve;

[0021] 400 - Second gas-liquid booster pump; 410 - Second gas-liquid booster module; 420 - Second two-position five-way single-acting pneumatic directional valve; 430 - Third two-position two-way mechanical directional valve; 440 - Fourth two-position two-way mechanical directional valve; 450 - Second check valve;

[0022] 500 - Hydraulic oil tank; 610 - First oil inlet pipe; 620 - Second oil inlet pipe; 630 - First oil outlet pipe; 640 - Second oil outlet pipe;

[0023] 710 - Trunnion; 720 - Intermediate sleeve; 730 - Large gear hub;

[0024] 811 - Cylinder block; 814 - Ring piston; 820 - Pressure cap; 830 - Connecting bolt;

[0025] 910 - Main intake pipe; 920 - Air supply triplet; 930 - First pressure regulating valve; 940 - Second pressure regulating valve; 950 - First pressure gauge; 960 - Second pressure gauge; 970 - Third pressure gauge; 980 - Fourth pressure gauge; 990 - Flow valve. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0028] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0029] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. In addition, the terms "first," "second," "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0030] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0031] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0032] refer to Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the oil supply system in an embodiment of the present invention. Figure 2 This is a schematic diagram of the structure of the first gas-liquid booster pump 300 in the oil supply system of this embodiment of the invention. This embodiment provides an oil supply system for supplying oil to the keyless connection structure of the tilting machine and the disassembly and assembly device to disassemble and assemble the keyless connection structure of the tilting machine. It includes an air source 100, a first air inlet pipe 210, a second air inlet pipe 220, a first gas-liquid booster pump 300, a second gas-liquid booster pump 400, a hydraulic oil tank 500, a first oil inlet pipe 610, a second oil inlet pipe 620, a first oil outlet pipe 630, and a second oil outlet pipe 640. The air source 100 is connected to the first gas-liquid booster pump 300 through the first air inlet pipe 210, and the air source 100 is connected to the second gas-liquid booster pump 400 through the second air inlet pipe 220. The hydraulic oil tank 500 is connected to the first gas-liquid booster pump 300 through the first oil inlet pipe 610, and the hydraulic oil tank 500 is connected to the first gas-liquid booster pump 300 through the first oil inlet pipe 610. The second oil inlet pipe 620 is connected to the second gas-liquid booster pump 400, the first oil outlet pipe 630 is connected to the first gas-liquid booster pump 300, the second oil outlet pipe 640 is connected to the second gas-liquid booster pump 400, the first oil outlet pipe 630 is connected to the disassembly and assembly device, and the second oil outlet pipe 640 is connected to the keyless connection structure of the tilting mechanism. The first gas-liquid booster pump 300 uses compressed air provided by the air source 100 as power to boost the hydraulic oil flowing from the hydraulic oil tank 500 into the first gas-liquid booster pump 300, and discharges the boosted hydraulic oil from the first oil outlet pipe 630. The second gas-liquid booster pump 400 uses compressed air provided by the air source 100 as power to boost the hydraulic oil flowing from the hydraulic oil tank 500 into the second gas-liquid booster pump 400, and discharges the boosted hydraulic oil from the second oil outlet pipe 640.

[0033] By setting up a first pneumatic-hydraulic booster pump 300 and a second pneumatic-hydraulic booster pump 400, and by using the two pneumatic-hydraulic booster pumps to pressurize the hydraulic oil flowing from the hydraulic oil tank 500 into the first pneumatic-hydraulic booster pump 300 and the second pneumatic-hydraulic booster pump 400, pressurized hydraulic oil can be supplied to the keyless connection structure of the tilting motor and the disassembly and assembly device, respectively, for disassembly and assembly of the keyless connection structure of the tilting motor. Since only pneumatic-hydraulic booster pumps are used to supply pressurized hydraulic oil to the keyless connection structure of the tilting motor and the disassembly and assembly device, the structure of the oil supply system can be significantly reduced compared to the traditional pump station, making the disassembly and assembly of the oil supply system more convenient.

[0034] refer to Figure 1 The keyless connection structure of the tilting mechanism includes a trunnion 710, an intermediate sleeve 720, and a large gear hub 730. The outer surface of the intermediate sleeve 720 is conical, and the inner surface is cylindrical. The intermediate sleeve 720 is fitted onto the trunnion 710. The large gear hub 730 is disposed on the intermediate sleeve 720, and the inner circumferential surface of the large gear hub 730 is conical. A plurality of first oil grooves are formed on the outer surface of the intermediate sleeve 720, and a plurality of second oil grooves are formed on the inner circumferential surface of the large gear hub 730. The first oil grooves are arranged axially, and the second oil grooves are annular. An oil passage is also formed on the large gear hub 730, with one end communicating with the second oil groove and the other end communicating with the end face of the large gear hub 730.

[0035] refer to Figure 1The disassembly and assembly device is used for disassembling and assembling the keyless connection structure of the tilting mechanism. It includes a hydraulic thruster, a pressure cap 820, and connecting bolts 830. The hydraulic thruster includes a cylinder body 811 and an annular piston 814. The annular piston 814 is disposed within the cylinder body 811. The cylinder body 811 includes inner and outer ring bolt holes arranged sequentially from the inside to the outside. The pressure cap 820 is located between the trunnion 710 and the cylinder body 811. The annular piston 814 is located between the pressure cap 820 and the cylinder body 811. The first oil outlet pipe 630 is connected to the cylinder body 811 to drive the annular piston 814 to move axially along the trunnion 710 within the cylinder body 811. The second oil outlet pipe 640 is connected to the oil passage; the disassembly and assembly device has an installation state and a disassembly state: in the installation state, the front of the pressure cap 820 is opposite to the end face of the trunnion 710 and has a first gap, and the pressure cap 820 abuts against the large gear hub 730, the connecting bolt 830 passes through the inner ring threaded hole and through the pressure cap 820, and is threadedly connected to the trunnion 710; in the disassembly state, the back of the pressure cap 820 is in contact with the end face of the trunnion 710, and the pressure cap 820 has a second gap with the large gear hub 730, the connecting bolt 830 passes through the outer ring threaded hole, and is threadedly connected to the large gear hub 730.

[0036] refer to Figure 1 and Figure 2The first gas-liquid booster pump 300 includes a first gas-liquid booster module 310, a first two-position five-way single-acting pneumatic directional valve 320, a first two-position two-way mechanical directional valve 330, a second two-position two-way mechanical directional valve 340, and two first check valves 350. The first gas-liquid booster module 310 includes a first cylinder and a first piston. The first cylinder includes a first oil chamber 312 and a first air chamber. The first piston includes a first piston portion 317 and a first piston rod portion 31 connected to the first piston portion 317. 8. The first piston portion 317 is disposed within the first air chamber, dividing the first air chamber into a first left air chamber 314 and a first right air chamber 315. The first piston rod portion 318 extends into the first oil chamber 312. The first oil inlet pipe 610 and the first oil outlet pipe 630 are connected to the first oil chamber 312. The first two-position two-way mechanical directional valve 330 is disposed on the first left air chamber 314, and the second two-position two-way mechanical directional valve 340 is disposed on the first right air chamber 315. The first two-position two-way mechanical directional valve 330 has port A connected to the first intake pipe 210, and port B connected to port B of the second two-position two-way mechanical directional valve 340 and the pneumatic port of the first two-position five-way single-acting pneumatic directional valve 320. Port A of the first two-position five-way single-acting pneumatic directional valve 320 is connected to the first left air chamber 314, port B of the first two-position five-way single-acting pneumatic directional valve 320 is connected to the first right air chamber 315, and port P of the first two-position five-way single-acting pneumatic directional valve 320 is connected to the first... An air intake pipe 210 is connected, and the S port and R port of the first two-position five-way single-acting pneumatic directional valve 320 are connected to the atmosphere. Two first check valves 350 are respectively installed on the first oil inlet pipe 610 and the first oil outlet pipe 630, so that when the first piston rod 318 extends into the first oil chamber 312, hydraulic oil is discharged from the first oil outlet pipe 630, and when the first piston rod 318 exits the first oil chamber 312, hydraulic oil enters the first oil chamber 312 from the hydraulic oil tank 500.

[0037] refer to Figure 2 The first gas-liquid booster pump 300 also includes a first exhaust throttle valve 360 ​​and a second exhaust throttle valve 370. The first exhaust throttle valve 360 ​​is disposed on the pipe connecting the S port of the first two-position five-way single-acting pneumatic control directional valve 320 to the atmosphere, and the second exhaust throttle valve 370 is disposed on the pipe connecting the R port of the first two-position five-way single-acting pneumatic control directional valve 320 to the atmosphere.

[0038] The structure of the second gas-liquid booster pump 400 is the same as that of the first gas-liquid booster pump 300. The second gas-liquid booster pump 400 includes a second gas-liquid booster module 410, a second two-position five-way single-acting pneumatic directional valve 420, a third two-position two-way mechanical directional valve 430, a fourth two-position two-way mechanical directional valve 440, and two second check valves 450. The second gas-liquid booster module 410 includes a second cylinder and a second piston. The second cylinder includes a second oil chamber and a second air chamber. The second piston includes a second piston portion and a second piston rod portion connected to the second piston portion. The second piston portion is disposed within the second air chamber, dividing the second air chamber into a second left air chamber and a second right air chamber. The second piston rod portion extends into the second oil chamber. The second oil inlet pipe 620 and the second oil outlet pipe 640 communicate with the second oil chamber. The third two-position two-way mechanical directional valve 430 is disposed on the second left air chamber, and the fourth two-position two-way mechanical directional valve 440 is disposed on the second right air chamber. Port A of the mechanical directional valve 430 is connected to the second air intake pipe 220, and port B is connected to port B of the fourth two-position two-way mechanical directional valve 440 and the pneumatic port of the second two-position five-way single-acting pneumatic directional valve 420. Port A of the second two-position five-way single-acting pneumatic directional valve 420 is connected to the second left air chamber, port B of the second two-position five-way single-acting pneumatic directional valve 420 is connected to the second right air chamber, port P of the second two-position five-way single-acting pneumatic directional valve 420 is connected to the second air intake pipe 220, and ports S and R of the second two-position five-way single-acting pneumatic directional valve 420 are connected to the atmosphere. Two second one-way valves 450 are respectively installed on the second oil inlet pipe 620 and the second oil outlet pipe 640, so that when the second piston rod extends into the second oil chamber, hydraulic oil is discharged from the second oil outlet pipe 640, and when the second piston rod retracts from the second oil chamber, hydraulic oil enters the second oil chamber from the hydraulic oil tank 500.

[0039] The second gas-liquid booster pump 400 also includes a third exhaust throttle valve and a fourth exhaust throttle valve. The third exhaust throttle valve is installed on the pipe connecting the S port of the second two-position five-way single-acting pneumatic control directional valve 420 to the atmosphere, and the fourth exhaust throttle valve is installed on the pipe connecting the R port of the second two-position five-way single-acting pneumatic control directional valve 420 to the atmosphere.

[0040] refer to Figure 1 The oil supply system further includes an intake manifold 910 and an air source triplet 920. The first intake pipe 210 and the second intake pipe 220 are connected to the air source 100 through the intake manifold 910, and the air source triplet 920 is disposed on the intake manifold 910. The air source triplet 920 includes a filter, a pressure regulator, and an oil mist lubricator.

[0041] refer to Figure 1 The oil supply system further includes a first pressure regulating valve 930 installed on the first air intake pipe 210, a second pressure regulating valve 940 installed on the second air intake pipe 220, a first pressure gauge 950 installed on the first air intake pipe 210, a second pressure gauge 960 installed on the second air intake pipe 220, a third pressure gauge 970 installed on the first oil outlet pipe 630, a fourth pressure gauge 980 installed on the second oil outlet pipe 640, and a flow valve 990 installed on the main air intake pipe 910.

[0042] The gas source 100 can be a gas generator.

[0043] The working process of the oil supply system is as follows:

[0044] First, the air source generator 100 starts and opens the flow valve 990, and the compressed air is pressure-regulated for the first time through the air source triplet 920.

[0045] Secondly, compressed air at a suitable pressure enters the first right chamber through the first two-position five-way single-acting pneumatic directional valve 320 from port B, driving the first piston to move towards the first left chamber. This causes the gas in the first left chamber to enter the first two-position five-way single-acting pneumatic directional valve 320 from port A and be discharged into the atmosphere from port S. At the same time, the first piston rod 318 extends into the first oil chamber 312 to compress the hydraulic oil in the first oil chamber 312, and the pressurized hydraulic oil flows out from the first oil outlet pipe 630 into the disassembly and assembly device. Furthermore, compressed air at appropriate pressure enters the second right chamber through port B of the second two-position five-way single-acting pneumatic directional valve 420, driving the second piston to move towards the second left chamber. This causes the gas in the second left chamber to enter the second two-position five-way single-acting pneumatic directional valve 420 through port A and be discharged into the atmosphere through port S. Simultaneously, the second piston rod extends into the second oil chamber, compressing the hydraulic oil within. The pressurized hydraulic oil then flows out through the second oil outlet pipe 640 and into the keyless connection structure of the tilting mechanism. At this time, the first two-position two-way mechanical directional valve 330 and the second two-position two-way mechanical directional valve 340 are normally closed.

[0046] Then, when the first piston portion 317 of the first piston contacts the mechanical reversing rod of the first two-position two-way mechanical reversing valve 330, and the second two-position two-way mechanical reversing valve 340 is in a normally closed state, compressed air enters the first two-position two-way mechanical reversing valve 330 from port A, and enters the first two-position two-way mechanical reversing valve 330 from port B to control the pneumatic control end of the first two-position five-way single-acting pneumatic reversing valve 320, thereby causing the compressed air to flow from the first two-position two-way mechanical reversing valve 330 to the first two-position two-way mechanical reversing valve 330. The first two-position five-way single-acting pneumatic directional valve 320 enters through port P and then enters the first left air chamber 314 through port A, driving the first piston to move closer to the first right air chamber 315. At the same time, the gas in the first right chamber enters the second two-position five-way single-acting pneumatic directional valve 420 through port A and is discharged into the atmosphere through port R. Furthermore, when the second piston part of the second piston contacts the mechanical reversing rod of the second two-position two-way mechanical directional valve 340, since the fourth two-position two-way mechanical directional valve 440 is in a normally closed state, compressed air enters the third two-position two-way mechanical directional valve 430 from port A and enters the pneumatic control end of the second two-position five-way single-acting pneumatic directional valve 420 from port B, controlling the second two-position five-way single-acting pneumatic directional valve 420 to switch, thereby causing the compressed air to... The gas enters the second two-position five-way single-acting pneumatic directional valve 420 through port P and enters the second left air chamber through port A, driving the second piston to move closer to the second right air chamber. At the same time, the gas in the second right chamber enters the second two-position five-way single-acting pneumatic directional valve 420 through port A and is discharged into the atmosphere through port R.

[0047] Subsequently, when the first piston portion 317 of the first piston contacts the mechanical reversing lever of the second two-position two-way mechanical reversing valve 340, the second two-position two-way mechanical reversing valve 340 is opened, thereby releasing the compressed air at the pneumatic control end of the first two-position five-way single-acting pneumatic reversing valve 320. This causes the first two-position five-way single-acting pneumatic reversing valve 320 to switch, allowing compressed air to pass through the first two-position five-way single-acting pneumatic reversing valve 320 and enter the first right side from port B of the first two-position five-way single-acting pneumatic reversing valve 320. The chamber drives the first piston to move towards the first left chamber, causing the gas in the first left chamber to enter the first two-position five-way single-acting pneumatic directional valve 320 from port A and be discharged into the atmosphere from port S. At the same time, the first piston rod 318 extends into the first oil chamber 312 to compress the hydraulic oil in the first oil chamber 312, and causes the pressurized hydraulic oil to flow out from the first oil outlet pipe 630 into the disassembly and assembly device. When the second piston part of the second piston contacts the mechanical reversing lever of the fourth two-position two-way mechanical reversing valve 440, the fourth two-position two-way mechanical reversing valve 440 is opened, thereby releasing the compressed air at the pneumatic control end of the second two-position five-way single-acting pneumatic reversing valve 420, which in turn causes the second two-position five-way single-acting pneumatic reversing valve 420 to switch, allowing compressed air to pass through the second two-position five-way single-acting pneumatic reversing valve 420 and enter the second two-position five-way single-acting pneumatic reversing valve 420 from port B. The second right chamber drives the second piston to move towards the second left chamber, causing the gas in the second left chamber to enter the second two-position five-way single-acting pneumatic directional valve 420 from port A and be discharged into the atmosphere from port S. At the same time, the second piston rod extends into the second oil chamber to compress the hydraulic oil in the second oil chamber, and the pressurized hydraulic oil flows out from the second oil outlet pipe 640 into the disassembly and assembly device.

[0048] Subsequently, during the movement of the first and second pistons, the first left air chamber 314 and the first right air chamber 315 continuously intake and exhaust air, causing the first piston rod 318 to continuously extend into and retract from the first oil cylinder, thus pressurizing the hydraulic oil onto the disassembly and assembly device; the second left air chamber and the second right air chamber continuously intake and exhaust air, causing the second piston rod to continuously extend into and retract from the second oil cylinder, thus pressurizing the hydraulic oil onto the keyless connection structure of the tilting motor.

[0049] The above description is merely a description of preferred embodiments of the present invention and is not intended to limit the scope of the present invention in any way. Any changes or modifications made by those skilled in the art based on the above disclosure shall fall within the protection scope of the claims.

Claims

1. An oil supply system, characterized in that, The keyless connection structure for supplying oil to the tilting motor and the disassembly / removal device for disassembling and assembling the tilting motor includes an air source, a first air inlet pipe, a second air inlet pipe, a first air-hydraulic booster pump, a second air-hydraulic booster pump, a hydraulic oil tank, a first oil inlet pipe, a second oil inlet pipe, a first oil outlet pipe, and a second oil outlet pipe. The air source is connected to the first air-hydraulic booster pump through the first air inlet pipe, and the air source is connected to the second air-hydraulic booster pump through the second air inlet pipe. The hydraulic oil tank is connected to the first air-hydraulic booster pump through the first oil inlet pipe, and the hydraulic oil tank is connected to the second air-hydraulic booster pump through the second oil inlet pipe. The first oil outlet pipe is connected to the first air-hydraulic booster pump, and the second oil outlet pipe is connected to the second air-hydraulic booster pump. The pump is connected, the first oil outlet pipe is connected to the disassembly and assembly device, and the second oil outlet pipe is connected to the keyless connection structure of the tilting motor. The first air-hydraulic booster pump uses compressed air provided by the air source as power to boost the hydraulic oil flowing from the hydraulic oil tank into the first air-hydraulic booster pump, and discharges the boosted hydraulic oil from the first oil outlet pipe. The second air-hydraulic booster pump uses compressed air provided by the air source as power to boost the hydraulic oil flowing from the hydraulic oil tank into the second air-hydraulic booster pump, and discharges the boosted hydraulic oil from the second oil outlet pipe. It also includes an air intake manifold and an air source triplet. The first air intake pipe and the second air intake pipe are connected to the air source through the air intake manifold, and the air source triplet is installed on the air intake manifold.

2. The oil supply system as described in claim 1, characterized in that, The keyless connection structure of the tilting mechanism includes a trunnion, an intermediate sleeve, and a large gear hub. The outer surface of the intermediate sleeve is conical, and the inner surface is cylindrical. The intermediate sleeve is fitted onto the trunnion. The large gear hub is mounted on the intermediate sleeve, and the inner circumferential surface of the large gear hub is conical. Multiple first oil grooves are formed on the outer surface of the intermediate sleeve, and multiple second oil grooves are formed on the inner circumferential surface of the large gear hub. The first oil grooves are arranged axially, and the second oil grooves are annular. An oil passage is also formed on the large gear hub, with one end connected to the second oil groove and the other end connected to the end face of the large gear hub. The second oil outlet pipe is connected to the oil passage.

3. The oil supply system as described in claim 2, characterized in that, The disassembly and assembly device is used for disassembling and assembling the keyless connection structure of the tilting mechanism. It includes a hydraulic thruster, a pressure cap, and connecting bolts. The hydraulic thruster includes a cylinder and a piston. The piston is disposed in the cylinder. The cylinder includes an inner ring bolt hole and an outer ring bolt hole arranged sequentially from the inside to the outside. The pressure cap is located between the trunnion and the cylinder. The piston is located between the pressure cap and the cylinder. The first oil outlet pipe is connected to the cylinder to drive the piston to move axially along the trunnion within the cylinder. The disassembly and assembly device has an installation state and a disassembly state: In the installation state, the front of the pressure cap faces the end face of the trunnion and has a first gap, and the pressure cap abuts against the large gear hub. The connecting bolt passes through the inner ring bolt hole and the pressure cap, and is threadedly connected to the trunnion. In the disassembly state, the back of the pressure cap contacts the end face of the trunnion, and the pressure cap has a second gap with the large gear hub. The connecting bolt passes through the outer ring bolt hole and is threadedly connected to the large gear hub.

4. The oil supply system as described in claim 1, characterized in that, The first gas-liquid booster pump includes a first gas-liquid booster module, a first two-position five-way single-acting pneumatic directional valve, a first two-position two-way mechanical directional valve, a second two-position two-way mechanical directional valve, and two first check valves. The first gas-liquid booster module includes a first cylinder and a first piston. The first cylinder includes a first oil chamber and a first air chamber. The first piston includes a first piston portion and a first piston rod portion connected to the first piston portion. The first piston portion is disposed within the first air chamber, dividing the first air chamber into a first left air chamber and a first right air chamber. The first piston rod portion extends into the first oil chamber. The first oil inlet pipe and the first oil outlet pipe communicate with the first oil chamber. The first two-position two-way mechanical directional valve is disposed on the first left air chamber, and the second two-position two-way mechanical directional valve is disposed on the first right air chamber. The A port of the first two-position two-way mechanical directional valve is connected to the first air intake pipe, and the B port is connected to the B port of the second two-position two-way mechanical directional valve and the air control port of the first two-position five-way single-acting pneumatic directional valve. The A port of the first two-position five-way single-acting pneumatic directional valve is connected to the first left air chamber, the B port of the first two-position five-way single-acting pneumatic directional valve is connected to the first right air chamber, the P port of the first two-position five-way single-acting pneumatic directional valve is connected to the first air intake pipe, and the S and R ports of the first two-position five-way single-acting pneumatic directional valve are connected to the atmosphere. The two first check valves are respectively installed on the first oil inlet pipe and the first oil outlet pipe, so that when the first piston rod extends into the first oil chamber, the hydraulic oil is discharged from the first oil outlet pipe, and when the first piston rod retracts from the first oil chamber, the hydraulic oil enters the first oil chamber from the hydraulic oil tank.

5. The oil supply system as described in claim 4, characterized in that, The first gas-liquid booster pump also includes a first exhaust throttle valve and a second exhaust throttle valve. The first exhaust throttle valve is installed on the pipe connecting the S port of the first two-position five-way single-acting pneumatic control directional valve to the atmosphere, and the second exhaust throttle valve is installed on the pipe connecting the R port of the first two-position five-way single-acting pneumatic control directional valve to the atmosphere.

6. The oil supply system as described in claim 1, characterized in that, The second gas-liquid booster pump includes a second gas-liquid booster module, a second 2-position 5-way single-acting pneumatic directional valve, a third 2-position 2-way mechanical directional valve, a fourth 2-position 2-way mechanical directional valve, and two second check valves. The second gas-liquid booster module includes a second cylinder and a second piston. The second cylinder includes a second oil chamber and a second air chamber. The second piston includes a second piston portion and a second piston rod portion connected to the second piston portion. The second piston portion is disposed within the second air chamber, dividing the second air chamber into a second left air chamber and a second right air chamber. The second piston rod portion extends into the second oil chamber. The second oil inlet pipe and the second oil outlet pipe communicate with the second oil chamber. The third 2-position 2-way mechanical directional valve is disposed on the second left air chamber, and the fourth 2-position 2-way mechanical directional valve is disposed on the second right air chamber. The A port of the third two-position two-way mechanical directional valve is connected to the second air inlet pipe, and the B port is connected to the B port of the fourth two-position two-way mechanical directional valve and the air control port of the second two-position five-way single-acting pneumatic directional valve. The A port of the second two-position five-way single-acting pneumatic directional valve is connected to the second left air chamber, the B port of the second two-position five-way single-acting pneumatic directional valve is connected to the second right air chamber, the P port of the second two-position five-way single-acting pneumatic directional valve is connected to the second air inlet pipe, and the S and R ports of the second two-position five-way single-acting pneumatic directional valve are connected to the atmosphere. The two second check valves are respectively installed on the second oil inlet pipe and the second oil outlet pipe, so that when the second piston rod extends into the second oil chamber, the hydraulic oil is discharged from the second oil outlet pipe, and when the second piston rod retracts from the second oil chamber, the hydraulic oil enters the second oil chamber from the hydraulic oil tank.

7. The oil supply system as described in claim 6, characterized in that, The second gas-liquid booster pump also includes a third exhaust throttle valve and a fourth exhaust throttle valve. The third exhaust throttle valve is installed on the pipe connecting the S port of the second two-position five-way single-acting pneumatic control directional valve to the atmosphere, and the fourth exhaust throttle valve is installed on the pipe connecting the R port of the second two-position five-way single-acting pneumatic control directional valve to the atmosphere.

8. The oil supply system as described in claim 1, characterized in that, It also includes a first pressure regulating valve installed on the first intake pipe, a second pressure regulating valve installed on the second intake pipe, a first pressure gauge installed on the first intake pipe, a second pressure gauge installed on the second intake pipe, a third pressure gauge installed on the first oil outlet pipe, a fourth pressure gauge installed on the second oil outlet pipe, and a flow valve installed on the intake manifold.

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