Hydraulic system for mounting and following erecting oil cylinder

Abstract

The invention discloses a hydraulic system for mounting and following an erecting oil cylinder, which relates to the technical field of spaceflight and comprises an oil source, at least one auxiliary pushing oil cylinder, a manual reversing valve group and a high-position oil supplementing oil tank, a lower supporting point of the auxiliary pushing oil cylinder is fixed on a rotating shaft in the foundation pit, and an upper supporting point of the auxiliary pushing oil cylinder is hinged with a lug plate on the erecting oil cylinder; the manual reversing valve group is mounted in a foundation pit, the manual reversing valve group is communicated with an oil source and the auxiliary pushing oil cylinder, and the auxiliary pushing oil cylinder is controlled by the manual reversing valve group to extend or retract; the high-position oil supplementing oil tank is arranged in the foundation pit and is higher than the lower supporting point of the auxiliary pushing oil cylinder and the hand-operated direction valve group; and the high-position oil supplementing oil tank is communicated with the auxiliary pushing oil cylinder. The device can be used for installing the erecting oil cylinder and can assist a follow-up device of the erecting oil cylinder after installation is completed, so that the butt joint efficiency of the erecting oil cylinder is improved, and the installation time is saved.

Description

Technical Field

[0001] This application relates to the technical field of hydraulic control, and particularly to a hydraulic system for the installation and follow-up action of an erection cylinder. Background Art

[0002] The erection cylinder is used to push the erection frame and the rocket assembly from the horizontal state to the vertical state. Currently, as the weight of the rocket model increases, the required specification of the erection cylinder also increases, and the weight of the erection cylinder increases. When installing the erection cylinder, usually the lower fulcrum of the erection cylinder is fixed to the ground rotary shaft support, and the upper fulcrum of the erection cylinder needs to wait until the erection frame is transported to the launch station and the docking is completed, and then docked with the erection frame fulcrum. In order to reduce the space of the launch site and reduce the lateral force acting on the erection cylinder during operation, the erection cylinder is usually arranged in a pit, but this will cause difficulties in hoisting and docking the erection cylinder.

[0003] Therefore, there is an urgent need to study a brand-new hydraulic system for installing the erection cylinder and, after the installation is completed, being able to assist the follow-up device of the erection cylinder, so as to improve the docking efficiency of the erection cylinder and save the installation time. Summary of the Invention

[0004] The purpose of this application is to provide a hydraulic system for the installation and follow-up action of an erection cylinder, which can be used for installing the erection cylinder and, after the installation is completed, being able to assist the follow-up device of the erection cylinder, so as to improve the docking efficiency of the erection cylinder and save the installation time.

[0005] To achieve the above object, this application provides a hydraulic system for the installation and follow-up action of an erection cylinder, including: an oil source for providing power, at least one auxiliary push cylinder, a manual reversing valve group, and a high-level oil replenishing tank; wherein, the lower fulcrum of the auxiliary push cylinder is fixed on the rotary shaft in the foundation pit, and the upper fulcrum of the auxiliary push cylinder is hinged to the ear plate on the erection cylinder; the manual reversing valve group is installed in the foundation pit, the manual reversing valve group is communicated with the oil source and the auxiliary push cylinder, and the auxiliary push cylinder is controlled to extend or retract by the manual reversing valve group. When the manual reversing valve group drives the auxiliary push cylinder to extend, the auxiliary push cylinder drives the erection cylinder to move from the inclined state to the vertical state; the high-level oil replenishing tank is arranged in the foundation pit and is higher than the lower fulcrum of the auxiliary push cylinder and the manual reversing valve group; the high-level oil replenishing tank is communicated with the auxiliary push cylinder; when performing the erection action, as the angle of the erection cylinder changes, the auxiliary push cylinder is retracted under the external force of the erection cylinder, and the oil in the large cavity of the auxiliary push cylinder is pressed back into the oil source, and under the action of the liquid level difference, the oil in the high-level oil replenishing tank is sucked into the small cavity of the auxiliary push cylinder, so as to realize the follow-up action of the auxiliary push cylinder following the erection cylinder.

[0006] As described above, each auxiliary propulsion oil cylinder at least includes: an oil cylinder body and a valve group beside the cylinder; wherein, the oil cylinder body includes: a cylinder body with a through hole at one end and a push rod with a piston at one end; the lower fulcrum of the cylinder body is fixed on the rotary shaft in the foundation pit; one end of the push rod with the piston is arranged in the cylinder body and is slidably connected with the cylinder body; the other end of the push rod penetrates through the through hole and is hinged to the ear plate on the erection oil cylinder; the side where the piston is connected to the push rod and the cylinder body form a small chamber, and the other side of the piston and the cylinder body form a large chamber; the valve group beside the cylinder is arranged on the cylinder body and is communicated with the oil cylinder body, and the push rod is controlled to extend or retract by the valve group beside the cylinder.

[0007] As described above, the valve group beside the cylinder at least includes: an oil cylinder small chamber balance valve, an oil cylinder large chamber balance valve, an oil cylinder small chamber outlet ball valve and an oil cylinder large chamber outlet ball valve; wherein, the oil cylinder small chamber balance valve is communicated with the oil cylinder large chamber balance valve; the oil cylinder small chamber balance valve is communicated with the small chamber and the manual reversing valve group; the oil cylinder large chamber balance valve is communicated with the large chamber and the manual reversing valve group; one end of the oil cylinder small chamber outlet ball valve is communicated with the small chamber and the oil cylinder small chamber balance valve, and the other end of the oil cylinder small chamber outlet ball valve is communicated with the high-level oil replenishing tank; one end of the oil cylinder large chamber outlet ball valve is communicated with the large chamber and the oil cylinder large chamber balance valve, and the other end of the oil cylinder large chamber outlet ball valve is communicated with the high-level oil replenishing tank.

[0008] As described above, when there are multiple auxiliary propulsion oil cylinders, the other ends of the oil cylinder small chamber outlet ball valves of each auxiliary propulsion oil cylinder are communicated with each other; the other ends of the oil cylinder large chamber outlet ball valves of each auxiliary propulsion oil cylinder are communicated with each other.

[0009] As described above, the high-level oil replenishing tank includes: an oil replenishing tank body, a liquid level gauge, an air filter, an oil replenishing tank drain ball valve, an oil replenishing tank small chamber ball valve and an oil replenishing tank large chamber ball valve; wherein, the liquid level gauge is communicated with the oil replenishing tank body, and the liquid level data in the oil replenishing tank body is monitored by the liquid level gauge; the air filter is communicated with the oil replenishing tank body; one end of the oil replenishing tank drain ball valve is communicated with the oil replenishing tank body; one end of the oil replenishing tank small chamber ball valve is communicated with the oil replenishing tank body, and the other end of the oil replenishing tank small chamber ball valve is communicated with the other end of the oil cylinder small chamber outlet ball valve; one end of the oil replenishing tank large chamber ball valve is communicated with the oil replenishing tank body, and the other end of the oil replenishing tank large chamber ball valve is communicated with the other end of the oil cylinder large chamber outlet ball valve.

[0010] As described above, the manual directional valve group includes: a plurality of sub-directional valve groups; an auxiliary push oil cylinder is communicated with a sub-directional valve group; wherein, each sub-directional valve group at least includes: a manual directional valve, a stacked pressure reducing valve, a stacked speed control valve, a large cavity ball valve of the directional valve group, a small cavity ball valve of the directional valve group, an inlet ball valve of the directional valve group, and a check valve of the directional valve group; the first oil port and the second oil port of the manual directional valve are respectively communicated with the oil inlet of the stacked pressure reducing valve; the oil return port of the manual directional valve is communicated with the oil return port of the stacked pressure reducing valve, and the oil return port of the stacked pressure reducing valve is communicated with one end of the check valve of the directional valve group through a low-pressure pipeline, and the other end of the check valve of the directional valve group is communicated with the oil source, and the oil in the oil source flows to the manual directional valve group through the check valve of the directional valve group; the oil inlet of the manual directional valve is communicated with the stacked pressure reducing valve, and the stacked pressure reducing valve is communicated with one end of the inlet ball valve of the directional valve group through a high-pressure pipeline, and the other end of the inlet ball valve of the directional valve group is communicated with the oil source; the first oil outlet of the stacked pressure reducing valve is communicated with the first working oil port of the stacked speed control valve, the stacked speed control valve is communicated with one end of the large cavity ball valve of the directional valve group, and the other end of the large cavity ball valve of the directional valve group is communicated with the balance valve of the large cavity of the oil cylinder; the second oil outlet of the stacked pressure reducing valve is communicated with the second working oil port of the stacked speed control valve, the stacked speed control valve is communicated with one end of the small cavity ball valve of the directional valve group, and the other end of the small cavity ball valve of the directional valve group is communicated with the balance valve of the small cavity of the oil cylinder; the low-pressure pipelines of each sub-directional valve group are communicated with each other, and the high-pressure pipelines of each sub-directional valve group are communicated with each other.

[0011] As described above, the oil source at least includes: a high-pressure filter, an oil source check valve, a relief valve, a speed control valve, an oil source ball valve, and a pressure sensor; wherein, one end of the high-pressure filter is communicated with the motor pump group, and the motor pump group is communicated with the fuel tank; the other end of the high-pressure filter is communicated with one end of the oil source check valve, and the other end of the oil source check valve is communicated with the other end of the inlet ball valve of the directional valve group and the other end of the check valve of the directional valve group; the oil flowing through the high-pressure filter flows to the manual directional valve group through the oil source check valve; one end of the relief valve is communicated with the other end of the high-pressure filter and one end of the oil source check valve; the other end of the relief valve is communicated with the fuel tank, one end of the speed control valve, and the other end of the check valve of the directional valve group; the other end of the speed control valve is communicated with the other end of the oil source check valve and the other end of the inlet ball valve of the directional valve group; the oil source ball valve is communicated with the other end of the speed control valve, the other end of the oil source check valve, and the other end of the inlet ball valve of the directional valve group; the pressure sensor is communicated with the oil source ball valve, the other end of the speed control valve, the other end of the oil source check valve, and the other end of the inlet ball valve of the directional valve group.

[0012] As described above, the auxiliary push oil cylinder is communicated with the manual directional valve group through a hose.

[0013] As described above, the oil source is communicated with the manual directional valve group through a hard pipe.

[0014] The beneficial effects achieved by this application are as follows:

[0015] (1) The hydraulic system for the erection cylinder installation and following action of the present application can be used for installing the erection cylinder. Specifically, the auxiliary push cylinder is controlled by a manual reversing valve group to push the erection cylinder to the vertical docking installation state, which can save the installation time.

[0016] (2) After the erection cylinder is installed, the hydraulic system for the erection cylinder installation and following action of the present application can assist the follow-up device of the erection cylinder, thereby improving the docking efficiency of the erection cylinder and saving the installation time. Specifically, after installation, the auxiliary push cylinder does not need to be removed, and the auxiliary push cylinder can follow the action of the erection cylinder, improving the docking efficiency and saving the manpower and material resources required for installing the erection cylinder. Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments recorded in the present application. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0018] Figure 1 It is a schematic structural diagram of an embodiment of the hydraulic system for the erection cylinder installation and following action;

[0019] Figure 2 It is a schematic diagram of the principle of an embodiment of the hydraulic system for the erection cylinder installation and following action;

[0020] Figure 3 It is a schematic diagram of the principle of an embodiment in the state where the manual reversing valve group is connected to the oil source;

[0021] Figure 4 It is a schematic structural diagram of an embodiment of the high-level oil replenishing tank;

[0022] Figure 5 It is a schematic structural diagram of an embodiment of the auxiliary push cylinder. Detailed Embodiments

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0024] Such as Figures 1-5As shown in the figure, the present application provides a hydraulic system for the erection cylinder installation and follow-up action, including: an oil source for providing power, at least one auxiliary pushing cylinder, a manual reversing valve group, and a high-level oil replenishing tank. Among them, the lower fulcrum of the auxiliary pushing cylinder is fixed on the rotating shaft in the foundation pit, and the upper fulcrum of the auxiliary pushing cylinder is hinged to the ear plate on the erection cylinder. The manual reversing valve group is installed in the foundation pit, and the manual reversing valve group is connected to the oil source and the auxiliary pushing cylinder. The auxiliary pushing cylinder is controlled to extend or retract by the manual reversing valve group. When the manual reversing valve group drives the auxiliary pushing cylinder to extend, the auxiliary pushing cylinder drives the erection cylinder to move from an inclined state to a vertical state. The high-level oil replenishing tank is arranged in the foundation pit and is higher than the lower fulcrum of the auxiliary pushing cylinder and the manual reversing valve group; the high-level oil replenishing tank is connected to the auxiliary pushing cylinder. When performing the erection action, as the angle of the erection cylinder changes, the auxiliary pushing cylinder retracts under the external force of the erection cylinder. The oil in the large cavity of the auxiliary pushing cylinder is compressed and returned to the oil source. Under the action of the liquid level difference, the oil in the high-level oil replenishing tank is sucked into the small cavity of the auxiliary pushing cylinder, so as to realize the follow-up action of the auxiliary pushing cylinder following the erection cylinder.

[0025] Specifically, as Figure 1 shown, the lower fulcrum of the erection frame is rotatably connected to the foundation pit, and the upper fulcrum of the erection frame is rotatably connected after being docked with the erection frame.

[0026] Further, as an embodiment, the oil source is a high-pressure oil led out from the erection hydraulic power station, and the oil source provides power for the auxiliary pushing cylinder.

[0027] Further, the oil source is connected to the manual reversing valve group through a hard pipe, but is not limited to a hard pipe. The present application preferably uses a hard pipe.

[0028] Further, the auxiliary pushing cylinder is connected to the manual reversing valve group through a hose, but is not limited to a hose. The present application preferably uses a hose.

[0029] Further, the auxiliary pushing cylinder is connected to the high-level oil replenishing tank through a low-pressure oil circuit, but is not limited to a low-pressure oil circuit. The present application preferably uses a low-pressure oil circuit.

[0030] Further, as Figure 2 and Figure 3 shown, each auxiliary pushing cylinder at least includes: a cylinder body and a valve group beside the cylinder. Among them, the cylinder body includes: a cylinder body with a through hole at one end and a push rod with a piston at one end. The lower fulcrum of the cylinder body is fixed on the rotating shaft in the foundation pit. The end of the push rod with the piston is arranged in the cylinder body and is slidably connected to the cylinder body; the other end of the push rod penetrates through the through hole and is hinged to the ear plate on the erection cylinder; the side where the piston is connected to the push rod and the cylinder body form a small cavity, and the other side of the piston and the cylinder body form a large cavity. The valve group beside the cylinder is arranged on the cylinder body and is connected to the cylinder body, and the push rod is controlled to extend or retract by the valve group beside the cylinder.

[0031] Furthermore, the valve group beside the cylinder is fixed to the cylinder body by screws, but is not limited to screws. In this application, screws are preferably used.

[0032] Furthermore, the valve group beside the cylinder at least includes: a balance valve for the small chamber of the cylinder, a balance valve for the large chamber of the cylinder, a ball valve for the outlet of the small chamber of the cylinder, and a ball valve for the outlet of the large chamber of the cylinder. Among them, the balance valve for the small chamber of the cylinder is communicated with the balance valve for the large chamber of the cylinder. The balance valve for the small chamber of the cylinder is communicated with the small chamber and the manual reversing valve group. The balance valve for the large chamber of the cylinder is communicated with the large chamber and the manual reversing valve group. One end of the ball valve for the outlet of the small chamber of the cylinder is communicated with the small chamber and the balance valve for the small chamber of the cylinder, and the other end of the ball valve for the outlet of the small chamber of the cylinder is communicated with the high-level oil replenishing tank. One end of the ball valve for the outlet of the large chamber of the cylinder is communicated with the large chamber and the balance valve for the large chamber of the cylinder, and the other end of the ball valve for the outlet of the large chamber of the cylinder is communicated with the high-level oil replenishing tank.

[0033] Furthermore, when there are multiple auxiliary pushing cylinders, the other ends of the ball valves for the outlets of the small chambers of each auxiliary pushing cylinder are all communicated with each other; the other ends of the ball valves for the outlets of the large chambers of each auxiliary pushing cylinder are all communicated with each other.

[0034] Specifically, the specific number of the auxiliary pushing cylinders is set according to the actual situation. In this application, four are preferably used.

[0035] Furthermore, the high-level oil replenishing tank includes: an oil replenishing tank body, a liquid level gauge, an air filter, an oil drain ball valve for the oil replenishing tank, a ball valve for the small chamber of the oil replenishing tank, and a ball valve for the large chamber of the oil replenishing tank. Among them, the liquid level gauge is communicated with the oil replenishing tank body, and the liquid level data in the oil replenishing tank body is monitored by the liquid level gauge. The air filter is communicated with the oil replenishing tank body. One end of the oil drain ball valve for the oil replenishing tank is communicated with the oil replenishing tank body. One end of the ball valve for the small chamber of the oil replenishing tank is communicated with the oil replenishing tank body, and the other end of the ball valve for the small chamber of the oil replenishing tank is communicated with the other end of the ball valve for the outlet of the small chamber of the cylinder. One end of the ball valve for the large chamber of the oil replenishing tank is communicated with the oil replenishing tank body, and the other end of the ball valve for the large chamber of the oil replenishing tank is communicated with the other end of the ball valve for the outlet of the large chamber of the cylinder.

[0036] Furthermore, the specific capacity of the oil replenishing tank body is set according to the actual situation. In this application, 250L or 1000L is preferably used.

[0037] Further, the manual directional valve group includes: multiple sub-directional valve groups; an auxiliary push oil cylinder is communicated with one sub-directional valve group. Wherein, each sub-directional valve group at least includes: a manual directional valve, a stacking pressure reducing valve, a stacking speed control valve, a large cavity ball valve of the directional valve group, a small cavity ball valve of the directional valve group, an inlet ball valve of the directional valve group, and a check valve of the directional valve group. The first oil port (i.e., port A of the manual directional valve) and the second oil port (i.e., port B of the manual directional valve) of the manual directional valve are respectively communicated with the oil inlet port (i.e., port P of the stacking pressure reducing valve) of the stacking pressure reducing valve. The oil return port (i.e., port T of the manual directional valve) of the manual directional valve is communicated with the oil return port (i.e., port T of the stacking pressure reducing valve) of the stacking pressure reducing valve. The oil return port (i.e., port T of the stacking pressure reducing valve) of the stacking pressure reducing valve is communicated with one end of the check valve of the directional valve group through a low-pressure pipeline, and the other end of the check valve of the directional valve group is communicated with the oil source. The oil in the oil source flows to the manual directional valve group through the check valve of the directional valve group. The oil inlet port (i.e., port P of the manual directional valve) of the manual directional valve is communicated with the stacking pressure reducing valve, and the stacking pressure reducing valve is communicated with one end of the inlet ball valve of the directional valve group through a high-pressure pipeline, and the other end of the inlet ball valve of the directional valve group is communicated with the oil source. The first oil outlet (i.e., port A of the stacking pressure reducing valve) of the stacking pressure reducing valve is communicated with the first working oil port (i.e., port A) of the stacking speed control valve, and the stacking speed control valve is communicated with one end of the large cavity ball valve of the directional valve group, and the other end of the large cavity ball valve of the directional valve group is communicated with the balance valve of the large cavity of the oil cylinder; the second oil outlet (i.e., port B of the stacking pressure reducing valve) of the stacking pressure reducing valve is communicated with the second working oil port (i.e., port B) of the stacking speed control valve, and the stacking speed control valve is communicated with one end of the small cavity ball valve of the directional valve group, and the other end of the small cavity ball valve of the directional valve group is communicated with the balance valve of the small cavity of the oil cylinder; the low-pressure pipelines of each sub-directional valve group are communicated with each other, and the high-pressure pipelines of each sub-directional valve group are communicated with each other.

[0038] Specifically, the specific number of sub-directional valve groups is set according to the actual situation, and four are preferably used in this application.

[0039] Further, the oil source at least includes: a high-pressure filter, an oil source check valve, a relief valve, a speed control valve, an oil source ball valve, and a pressure sensor. One end of the high-pressure filter is connected to the motor pump unit, and the motor pump unit is connected to the fuel tank. The other end of the high-pressure filter is connected to one end of the oil source check valve, and the other end of the oil source check valve is connected to the other end of the inlet ball valve of the directional valve group and the other end of the check valve of the directional valve group; the oil flowing through the high-pressure filter flows through the oil source check valve to the manual directional valve group. One end of the relief valve is connected to the other end of the high-pressure filter and one end of the oil source check valve; the other end of the relief valve is connected to the fuel tank, one end of the speed control valve, and the other end of the check valve of the directional valve group. The other end of the speed control valve is connected to the other end of the oil source check valve and the other end of the inlet ball valve of the directional valve group. The oil source ball valve is connected to the other end of the speed control valve, the other end of the oil source check valve, and the other end of the inlet ball valve of the directional valve group. The pressure sensor is connected to the oil source ball valve, the other end of the speed control valve, the other end of the oil source check valve, and the other end of the inlet ball valve of the directional valve group.

[0040] Specifically, the working principle of the hydraulic system for the erection cylinder installation and following movement is as follows:

[0041] Working state 1: During the erection cylinder installation stage, the ball valves (i.e., the cylinder small chamber outlet ball valve and the cylinder large chamber outlet ball valve) on the cylinder side valve group of the auxiliary push cylinder connected to the high-level oil replenishing tank are closed. At this time, the oil source supplies oil, and the auxiliary push cylinder is controlled by the manual directional valve group to expand and contract to complete the installation and adjustment of the erection cylinder.

[0042] Working state 2: After the erection cylinder is installed and during the follow-up stage of the auxiliary push cylinder, the ball valves (i.e., the cylinder small chamber outlet ball valve and the cylinder large chamber outlet ball valve) on the cylinder side valve group of the auxiliary push cylinder connected to the high-level oil replenishing tank are opened, and the ball valves (i.e., the large chamber ball valve of the directional valve group and the small chamber ball valve of the directional valve group) between the manual directional valve group and the auxiliary push cylinder are closed. At this time, the oil in the large chamber and small chamber of the auxiliary push cylinder is only connected to the high-level oil replenishing tank, realizing the follow-up of the auxiliary push cylinder following the erection cylinder.

[0043] The beneficial effects achieved by this application are as follows:

[0044] (1) The hydraulic system for the erection cylinder installation and following movement of this application can be used to install the erection cylinder. Specifically, the auxiliary push cylinder is controlled by the manual directional valve group to push the erection cylinder to the vertical docking installation state, which can save installation time.

[0045] (2) After the erection cylinder is installed, the hydraulic system for the installation and follow-up action of the erection cylinder in the present application can assist the follow-up device of the erection cylinder, thereby improving the docking efficiency of the erection cylinder and saving installation time. Specifically, after installation, there is no need to remove the auxiliary pushing cylinder, and the auxiliary pushing cylinder can be made to follow the action of the erection cylinder, improving the docking efficiency and saving the manpower and material resources required for installing the erection cylinder.

[0046] Although the preferred embodiments of the present application have been described, those skilled in the art can make additional changes and modifications to these embodiments once they learn the basic creative concept. Therefore, the protection scope of the present application is intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present application. Obviously, those skilled in the art can make various changes and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the protection of the present application and its equivalent technologies, the present application also intends to include these modifications and variations.

Claims

1. A hydraulic system for the erection cylinder installation and following action, characterized in that, It includes: An oil source for providing power, at least one auxiliary pushing oil cylinder, a manual reversing valve group, and a high-level oil replenishing tank; Among them, the lower fulcrum of the auxiliary pushing oil cylinder is fixed on the rotating shaft in the foundation pit, and the upper fulcrum of the auxiliary pushing oil cylinder is hinged to the ear plate on the erection oil cylinder; The manual reversing valve group is installed in the foundation pit, and the manual reversing valve group is connected to the oil source and the auxiliary pushing oil cylinder. The auxiliary pushing oil cylinder is controlled by the manual reversing valve group to extend or retract. When the manual reversing valve group drives the auxiliary pushing oil cylinder to extend, the auxiliary pushing oil cylinder drives the erection oil cylinder to move from an inclined state to a vertical state; The high-level oil replenishing tank is arranged in the foundation pit and is higher than the lower fulcrum of the auxiliary pushing oil cylinder and the manual reversing valve group; the high-level oil replenishing tank is connected to the auxiliary pushing oil cylinder; When performing the erection action, as the angle of the erection oil cylinder changes, the auxiliary pushing oil cylinder retracts under the external force of the erection oil cylinder. The oil in the large cavity of the auxiliary pushing oil cylinder is pressed back into the oil source, and under the action of the liquid level difference, the oil in the high-level oil replenishing tank is sucked into the small cavity of the auxiliary pushing oil cylinder, so as to realize the action of the auxiliary pushing oil cylinder following the erection oil cylinder.

2. The hydraulic system for the erection cylinder installation and following action according to claim 1, characterized in that, Each auxiliary pushing oil cylinder at least includes: an oil cylinder body and a valve group beside the cylinder; Among them, the oil cylinder body includes: a cylinder body with a through hole at one end and a push rod with a piston at one end; The lower fulcrum of the cylinder body is fixed on the rotating shaft in the foundation pit; One end of the push rod with a piston is arranged in the cylinder body and is slidably connected to the cylinder body; the other end of the push rod penetrates through the through hole and is hinged to the ear plate on the erection oil cylinder; the side where the piston is connected to the push rod and the cylinder body form a small cavity, and the other side of the piston and the cylinder body form a large cavity; The valve group beside the cylinder is arranged on the cylinder body and is connected to the oil cylinder body. The push rod is controlled by the valve group beside the cylinder to extend or retract.

3. The hydraulic system for the erection cylinder installation and following action according to claim 2, characterized in that, The valve group beside the cylinder at least includes: an oil cylinder small cavity balance valve, an oil cylinder large cavity balance valve, an oil cylinder small cavity outlet ball valve, and an oil cylinder large cavity outlet ball valve; Among them, the oil cylinder small cavity balance valve is connected to the oil cylinder large cavity balance valve; The oil cylinder small cavity balance valve is connected to the small cavity and the manual reversing valve group; The oil cylinder large cavity balance valve is connected to the large cavity and the manual reversing valve group; One end of the oil cylinder small cavity outlet ball valve is connected to the small cavity and the oil cylinder small cavity balance valve, and the other end of the oil cylinder small cavity outlet ball valve is connected to the high-level oil replenishing tank; One end of the oil cylinder large cavity outlet ball valve is connected to the large cavity and the oil cylinder large cavity balance valve, and the other end of the oil cylinder large cavity outlet ball valve is connected to the high-level oil replenishing tank.

4. The hydraulic system for erection cylinder installation and following action according to claim 3, characterized in that When there are multiple auxiliary pushing oil cylinders, the other ends of the oil cylinder small cavity outlet ball valves of each auxiliary pushing oil cylinder are all connected to each other; the other ends of the oil cylinder large cavity outlet ball valves of each auxiliary pushing oil cylinder are all connected to each other.

5. The hydraulic system for erection cylinder installation and follow-up action according to claim 3, wherein, The high-level oil replenishing tank includes: a replenishing tank body, a liquid level gauge, an air filter, a replenishing tank drain ball valve, a replenishing tank small cavity ball valve, and a replenishing tank large cavity ball valve; Among them, the liquid level gauge is connected to the replenishing tank body, and the liquid level data in the replenishing tank body is monitored by the liquid level gauge; The air filter is connected to the replenishing tank body; One end of the replenishing tank drain ball valve is connected to the replenishing tank body; One end of the replenishing tank small cavity ball valve is connected to the replenishing tank body, and the other end of the replenishing tank small cavity ball valve is connected to the other end of the oil cylinder small cavity outlet ball valve; One end of the ball valve of the large chamber of the oil replenishing tank is communicated with the body of the oil replenishing tank, and the other end of the ball valve of the large chamber of the oil replenishing tank is communicated with the other end of the ball valve at the outlet of the large chamber of the oil cylinder.

6. The hydraulic system for the erection cylinder installation and following action according to claim 5, characterized in that, The manual directional valve group includes: a plurality of sub-directional valve groups; an auxiliary push oil cylinder is communicated with a sub-directional valve group; Wherein, each sub-directional valve group at least includes: a manual directional valve, a stacking type pressure reducing valve, a stacking type speed regulating valve, a ball valve for the large chamber of the directional valve group, a ball valve for the small chamber of the directional valve group, an inlet ball valve of the directional valve group, and a check valve of the directional valve group; The first oil port and the second oil port of the manual directional valve are respectively communicated with the oil inlet of the stacking type pressure reducing valve; The oil return port of the manual directional valve is communicated with the oil return port of the stacking type pressure reducing valve. The oil return port of the stacking type pressure reducing valve is communicated with one end of the check valve of the directional valve group through a low-pressure pipeline. The other end of the check valve of the directional valve group is communicated with the oil source. The oil in the oil source flows to the manual directional valve group through the check valve of the directional valve group; The oil inlet of the manual directional valve is communicated with the stacking type pressure reducing valve. The stacking type pressure reducing valve is communicated with one end of the inlet ball valve of the directional valve group through a high-pressure pipeline. The other end of the inlet ball valve of the directional valve group is communicated with the oil source; The first oil outlet of the stacking type pressure reducing valve is communicated with the first working oil port of the stacking type speed regulating valve. The stacking type speed regulating valve is communicated with one end of the ball valve for the large chamber of the directional valve group. The other end of the ball valve for the large chamber of the directional valve group is communicated with the balance valve of the large chamber of the oil cylinder; The second oil outlet of the stacking type pressure reducing valve is communicated with the second working oil port of the stacking type speed regulating valve. The stacking type speed regulating valve is communicated with one end of the ball valve for the small chamber of the directional valve group. The other end of the ball valve for the small chamber of the directional valve group is communicated with the balance valve of the small chamber of the oil cylinder; The low-pressure pipelines of each sub-directional valve group are communicated with each other, and the high-pressure pipelines of each sub-directional valve group are communicated with each other.

7. The hydraulic system for erection cylinder installation and follow-up action according to claim 6, characterized in that, The oil source at least includes: a high-pressure filter, an oil source check valve, a relief valve, a speed regulating valve, an oil source ball valve, and a pressure sensor; Wherein, one end of the high-pressure filter is communicated with the motor pump set, and the motor pump set is communicated with the oil tank; The other end of the high-pressure filter is communicated with one end of the oil source check valve. The other end of the oil source check valve is communicated with the other end of the inlet ball valve of the directional valve group and the other end of the check valve of the directional valve group. The oil flowing through the high-pressure filter flows to the manual directional valve group through the oil source check valve; One end of the relief valve is communicated with the other end of the high-pressure filter and one end of the oil source check valve; the other end of the relief valve is communicated with the oil tank, one end of the speed regulating valve, and the other end of the check valve of the directional valve group; The other end of the speed regulating valve is communicated with the other end of the oil source check valve and the other end of the inlet ball valve of the directional valve group; The oil source ball valve is communicated with the other end of the speed regulating valve, the other end of the oil source check valve, and the other end of the inlet ball valve of the directional valve group; The pressure sensor is communicated with the oil source ball valve, the other end of the speed regulating valve, the other end of the oil source check valve, and the other end of the inlet ball valve of the directional valve group.

8. The hydraulic system for the erection cylinder installation and following movement according to claim 1, characterized in that, The auxiliary push oil cylinder is communicated with the manual directional valve group through a hose.

9. The hydraulic system for the erection cylinder installation and following action according to claim 1, wherein, The oil source is communicated with the manual directional valve group through a hard pipe.

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