Power plant and industrial integrated automatic control AGV hydraulic station

Abstract

The present invention provides a power device and an industrial integrated automatic control AGV hydraulic station, wherein the power device comprises an oil collecting tray assembly, an oil tank assembly, a control valve group, an oil supply motor pump group and a pipeline assembly; the oil tank assembly, the control valve group and the oil supply motor pump group are all installed on the oil collecting tray assembly, the control valve group is located on the side of the oil tank assembly, and the oil supply motor pump group is arranged between the oil tank assembly and the control valve group; the inlet of the oil supply motor pump group is connected to the oil outlet of the oil tank assembly, and the control valve group is respectively connected to the outlet of the oil supply motor pump group, the oil return port of the oil tank assembly and the actuator cylinder through the pipeline assembly, and is used to control the pressure, flow and direction of the hydraulic circuit. The present invention has a simple and compact structure, integrates all control elements into a system through the power device, can work for a long time in harsh environments, has high reliability, can provide safer and more stable power, and is easy to operate and maintain.

Description

Technical Field

[0001] The present invention relates to the technical field of hydraulic stations, and in particular to a power device and an industrial integrated automatic control AGV hydraulic station. Background Art

[0002] Industrial integrated automatic control AGV hydraulic station generally operates in harsh environments and has a long operation cycle. The main function of the power device of the industrial integrated automatic control AGV hydraulic station is to drive the heavy-load AGV intelligent transporter actuator.

[0003] For a long time, heavy-duty AGV intelligent transporters have relied on imports due to their high technical requirements, especially the core components of the hydraulic power system, which not only leads to high costs, but also faces problems such as long delivery time and untimely service. Existing heavy-duty AGV intelligent transporters have many technical difficulties, including the synchronous lifting accuracy of the four legs, long-term height stability, energy saving and quietness, and stepless speed regulation;

[0004] Therefore, how to develop an AGV hydraulic station with high lifting synchronization accuracy, stable movement, energy saving and quietness, and capable of stepless speed regulation is an urgent problem to be solved in this field. Summary of the invention

[0005] In view of the defects in the prior art, the object of the present invention is to provide a power device and an industrial integrated automatic control AGV hydraulic station.

[0006] The power device provided by the present invention comprises an oil collecting pan assembly, an oil tank assembly, a control valve assembly, an oil supply motor pump assembly and a pipeline assembly;

[0007] The oil tank assembly, the control valve assembly and the oil supply motor pump assembly are all installed on the oil collecting pan assembly, the control valve assembly is located on the side of the oil tank assembly, and the oil supply motor pump assembly is arranged between the oil tank assembly and the control valve assembly;

[0008] The inlet of the oil supply motor pump group is connected to the oil outlet of the oil tank assembly, and the control valve group is respectively connected to the outlet of the oil supply motor pump group, the oil return port of the oil tank assembly and the actuator cylinder through the pipeline assembly, and is used to control the pressure, flow and direction of the hydraulic circuit;

[0009] The control valve group includes a first control valve group and a second control valve group;

[0010] The first control valve group and the second control valve group are respectively arranged on both sides of the oil tank assembly, and the oil supply motor pump group is arranged between the first control valve group and the oil tank assembly;

[0011] The first control valve group and the second control valve group are both connected to one or more actuator cylinders.

[0012] Preferably, the first control valve group comprises a first valve block body, a relief valve, a first solenoid valve, a first pressure sensor and a first control valve module, and the relief valve, the first solenoid valve, the first pressure sensor and the first control valve module are all installed in the first valve block body;

[0013] The overflow valve and the first solenoid valve form an electromagnetic overflow valve, the inlet of the electromagnetic overflow valve is connected to the first outlet of the oil supply motor pump group, and the outlet of the electromagnetic overflow valve is connected to the oil tank assembly;

[0014] The first control valve module is connected to the second outlet of the oil supply motor pump group, the actuator cylinder and the oil tank assembly, and a first pressure sensor is provided between the second outlet of the oil supply motor pump group and the first control valve module, and between the first control valve module and the actuator cylinder;

[0015] The second control valve group includes a second valve block body, a second pressure sensor and a second control valve module, and the second control valve module and the second pressure sensor are both installed in the second valve block body;

[0016] The second control valve module is connected to the second outlet of the oil supply motor pump group, the actuator cylinder and the oil tank assembly. A second pressure sensor is arranged between the second control valve module and the actuator cylinder. Each of the actuator cylinders is connected to a first control valve module or a second control valve module.

[0017] Preferably, the first control valve module and the second control valve module both include a logic valve, a shuttle valve, an electric proportional reversing valve and a second solenoid valve, and the inlet of the logic valve is connected to the second outlet of the oil supply motor pump group;

[0018] The two oil ports on one side of the electric proportional reversing valve are respectively connected to the rod chamber of the actuator cylinder and the rodless chamber of the actuator cylinder, and the two oil ports on the other side of the electric proportional reversing valve are respectively connected to the outlet of the logic valve and the oil tank assembly;

[0019] The oil inlet of the shuttle valve is connected to two oil ports on one side of the electric proportional reversing valve, and the oil outlet of the shuttle valve is connected to the spring chamber on one side of the logic valve. The shuttle valve is used to control the switch of the logic valve.

[0020] Preferably, it further comprises a synchronous valve group, wherein the synchronous valve group is installed on one side of the second control valve group;

[0021] The second control valve group is connected to multiple actuator cylinders, and the synchronization valve group includes multiple fourth solenoid valves. Among the multiple actuator cylinders, the rod chambers of adjacent actuator cylinders are connected through the fourth solenoid valve, and the rodless chambers of adjacent actuator cylinders are connected through the fourth solenoid valve.

[0022] Preferably, the oil tank assembly includes an oil return filter, a liquid level and temperature relay, a liquid level gauge, an air filter, an oil drain ball valve and an oil tank;

[0023] The oil return filter is arranged upstream of the oil return port of the oil tank, the liquid level gauge is installed on the side wall of the oil tank, and the oil drain ball valve is arranged at the bottom of the oil tank;

[0024] The air filter and the liquid level and temperature relay are both installed on the top of the oil tank, and the liquid level and temperature relay is electrically connected to an external electronic control component.

[0025] Preferably, the oil supply motor pump group includes a motor, a coupling, a gear pump, a one-way valve and a high-pressure filter connected in sequence;

[0026] The inlet of the gear pump is provided with an oil suction filter and is connected to the oil tank assembly through the oil suction filter. The outlet of the high-pressure filter is connected to the control valve group.

[0027] Preferably, it further comprises an emergency release valve group and a pressure gauge assembly, wherein the emergency release valve group comprises a third valve block body and a third solenoid valve located inside the third valve block body;

[0028] The two oil ports of the third solenoid valve are respectively connected to the oil tank assembly and the pipe section between the actuator cylinder and the control valve assembly;

[0029] The pressure gauge assembly includes a pressure gauge, a pressure measuring line and a pressure measuring joint, which are connected in sequence and arranged between the control valve assembly and the oil supply motor pump group, and between the control valve assembly and the actuator cylinder.

[0030] Preferably, the first control valve group further includes a one-way sequence valve, a stop valve and an accumulator;

[0031] The inlet of the one-way sequence valve is connected to the first control valve module and the second control valve module, and the outlet of the one-way sequence valve is connected to the outlet of the electromagnetic overflow valve and the oil tank assembly respectively;

[0032] The stop valve and the accumulator are connected in sequence to form an accumulator assembly, and the accumulator assembly includes a first accumulator assembly, a second accumulator assembly and a third accumulator assembly;

[0033] The first accumulator assembly is arranged in the pipe section at the second outlet of the oil supply motor pump group, the second accumulator assembly is arranged between the first control valve module and the actuator cylinder, and the third accumulator assembly is arranged between the second control valve module and the actuator cylinder.

[0034] The industrial integrated automatic control AGV hydraulic station provided by the present invention includes the power device, which is installed inside the AGV hydraulic station housing, the piston rod of the actuator cylinder is connected to the bottom of the loading platform, and the pressure gauge assembly of the power device is embedded in the hole of the AGV hydraulic station housing.

[0035] Compared with the prior art, the present invention has the following beneficial effects:

[0036] 1. The present invention has a simple and compact structure. All control elements are integrated into a system through a power device. It can work for a long time in harsh environments, has high reliability, can provide safer and more stable power, and is easy to operate and maintain.

[0037] 2. The present invention adopts the technical means of arranging the first control valve group and the second control valve group on both sides of the oil tank assembly respectively, which can make the overall power device layout more compact and more suitable for AGV operation on the basis of the control valve group realizing the synchronous movement, speed regulation and reversing functions of the oil cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings:

[0039] Figure 1 It is a schematic diagram of the overall structure of the power device in the present invention;

[0040] Figure 2 It is a front view structural schematic diagram of the power device in the present invention;

[0041] Figure 3 It is a right side structural schematic diagram of the power device in the present invention;

[0042] Figure 4 It is a left-side structural schematic diagram of the power device in the present invention;

[0043] Figure 5 It is a schematic diagram of the top view of the power device in the present invention;

[0044] Figure 6 It is a rear view structural schematic diagram of the power device in the present invention;

[0045] Figure 7 It is a schematic diagram of the hydraulic circuit principle of the power device in the present invention.

[0046] The figure shows:

[0047] DETAILED DESCRIPTION

[0048] The present invention is described in detail below in conjunction with specific embodiments. The following embodiments will help those skilled in the art to further understand the present invention, but are not intended to limit the present invention in any form. It should be noted that, for those of ordinary skill in the art, several changes and improvements can also be made without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0049] The present invention discloses a power device and an industrial integrated automatic control AGV hydraulic station. All control elements are integrated into a system through the power device. On the basis of the control valve group realizing the synchronous movement, speed regulation and reversing functions of the execution cylinder, the overall power device layout is made more compact, can work for a long time in harsh environments, has high reliability, can provide safer and more stable power, and is easy to operate and maintain.

[0050] According to the power device provided by the present invention, Figure 1-6 As shown, it includes an oil collecting pan assembly 100, an oil tank assembly 200, a control valve group, an oil supply motor pump group 400 and a pipeline assembly 800; the oil tank assembly 200, the control valve group and the oil supply motor pump group 400 are all installed on the oil collecting pan assembly 100, the control valve group is located on the side of the oil tank assembly 200, and the oil supply motor pump group 400 is arranged between the oil tank assembly 200 and the control valve group; the inlet of the oil supply motor pump group 400 is connected to the oil outlet of the oil tank assembly 200, and the control valve group is respectively connected to the outlet of the oil supply motor pump group 400, the oil return port of the oil tank assembly 200 and the actuator cylinder through the pipeline assembly 800, and is used to control the pressure, flow and direction of the hydraulic circuit.

[0051] The control valve group includes a first control valve group 300 and a second control valve group 500; the first control valve group 300 and the second control valve group 500 are respectively arranged on both sides of the oil tank assembly 200, and the oil supply motor pump group 400 is arranged between the first control valve group 300 and the oil tank assembly 200; the first control valve group 300 and the second control valve group 500 are both connected to one or more actuator cylinders. In a preferred example, Figure 7 As shown, the first control valve group 300 and the second control valve group 500 are both used to control two actuator cylinders.

[0052] like Figure 7As shown, the first control valve group 300 includes a first valve block body, a relief valve 6, a first solenoid valve 7, a first pressure sensor 8 and a first control valve module, wherein the relief valve 6, the first solenoid valve 7, the first pressure sensor 8 and the first control valve module are all installed in the first valve block body; the relief valve 6 and the first solenoid valve 7 form an electromagnetic relief valve, the inlet of the electromagnetic relief valve is connected to the first outlet of the oil supply motor pump group 400, and the outlet of the electromagnetic relief valve is connected to the oil tank assembly 200; the first control valve module is connected to the second outlet of the oil supply motor pump group 400, the actuator cylinder and the oil tank assembly 200, and the first pressure sensor 8 is arranged between the second outlet of the oil supply motor pump group 400 and the first control valve module, and between the first control valve module and the actuator cylinder;

[0053] like Figure 7 As shown, the second control valve group 500 includes a second valve block body, a second pressure sensor 28 and a second control valve module, and the second control valve module and the second pressure sensor 28 are both installed in the second valve block body; the second control valve module is connected to the second outlet of the oil supply motor pump group 400, the actuator cylinder and the oil tank assembly 200, and a second pressure sensor 28 is arranged between the second control valve module and the actuator cylinder, and each of the actuator cylinders is connected to a first control valve module or a second control valve module.

[0054] like Figure 7 As shown, the first control valve module and the second control valve module both include a logic valve 12, a shuttle valve 13, an electric proportional reversing valve 14 and a second solenoid valve 15, the inlet of the logic valve 12 is connected to the second outlet of the oil supply motor pump group 400; the two oil ports on one side of the electric proportional reversing valve 14 are respectively connected to the rod chamber of the actuator cylinder and the rodless chamber of the actuator cylinder, and the two oil ports on the other side of the electric proportional reversing valve 14 are respectively connected to the outlet of the logic valve 12 and the oil tank assembly 200; by controlling the electric proportional reversing valve 14, the hydraulic circuit can be reversed, thereby realizing the rising, falling and stopping actions of the piston inside the actuator cylinder, and by controlling the working current of the electric proportional reversing valve 14, the movement speed and pressure of the piston inside the actuator cylinder can be adjusted, so that it can be suitable for different working conditions.

[0055] Preferably, the oil inlet of the shuttle valve 13 is connected to the two oil ports on one side of the electric proportional reversing valve 14, and the oil outlet of the shuttle valve 13 is connected to the spring chamber on one side of the logic valve 12. The shuttle valve 13 is used to control the switch of the logic valve 12. When the pressure of the rod chamber or the rodless chamber inside the actuator cylinder is too high, the oil will pressurize the spring chamber on one side of the logic valve 12 through the shuttle valve 13, thereby controlling the logic valve 12 to disconnect, which plays a role in safety protection.

[0056] like Figure 7As shown, the power device also includes a synchronization valve group 900, and the synchronization valve group 900 is installed on one side of the second control valve group 500; the second control valve group 500 is connected to a plurality of actuator cylinders, and the synchronization valve group 900 includes a plurality of fourth solenoid valves 27. Among the plurality of actuator cylinders, the rod chambers of adjacent actuator cylinders are connected by the fourth solenoid valve 27, and the rodless chambers of adjacent actuator cylinders are connected by the fourth solenoid valve 27. The synchronization valve group 900 can control the displacement synchronization and leveling function of the actuator cylinder of the hydraulic station to realize the synchronous action of the cylinders.

[0057] like Figure 7 As shown, the oil tank assembly 200 includes a return oil filter 16, a liquid level and temperature relay 17, a liquid level gauge 19, an air filter 20, an oil drain ball valve 24 and an oil tank 25; the return oil filter 16 is arranged upstream of the return oil port of the oil tank 25, the liquid level gauge 19 is installed on the side wall of the oil tank 25, and the oil drain ball valve 24 is arranged at the bottom of the oil tank 25; the air filter 20 and the liquid level and temperature relay 17 are both installed on the top of the oil tank 25, and the liquid level and temperature relay 17 is electrically connected to the external electronic control component. The oil supply motor pump group 400 includes a motor 1, a coupling 2, a gear pump 3, a check valve 4 and a high-pressure filter 5 connected in sequence; the inlet of the gear pump 3 is provided with an oil suction filter 18, and is connected to the oil tank assembly 200 through the oil suction filter 18, and the outlet of the high-pressure filter 5 is connected to the control valve group.

[0058] like Figure 7 As shown, the power unit also includes an emergency release valve group 600 and a pressure gauge assembly 700, the emergency release valve group 600 includes a third valve block body and a third solenoid valve 21 located inside the third valve block body; the two oil ports of the third solenoid valve 21 are respectively connected to the oil tank assembly 200 and the pipe section between the actuator cylinder and the control valve assembly; the pressure gauge assembly 700 includes a pressure gauge 9, a pressure measuring line 10 and a pressure measuring joint 11, the pressure gauge 9, the pressure measuring line 10 and the pressure measuring joint 11 are connected in sequence, and are arranged between the control valve assembly and the oil supply motor pump group 400, and between the control valve assembly and the actuator cylinder.

[0059] The first control valve group 300 also includes a one-way sequence valve 26, a stop valve 22 and an accumulator 23; the inlet of the one-way sequence valve 26 is connected to the first control valve module and the second control valve module, and the outlet of the one-way sequence valve 26 is respectively connected to the outlet of the electromagnetic overflow valve and the oil tank assembly 200; the stop valve 22 and the accumulator 23 are connected in sequence to form an accumulator assembly, and the accumulator assembly includes a first accumulator assembly, a second accumulator assembly and a third accumulator assembly; the first accumulator assembly is arranged in a pipe section at the second outlet of the oil supply motor pump group 400, the second accumulator assembly is arranged between the first control valve module and the actuator cylinder, and the third accumulator assembly is arranged between the second control valve module and the actuator cylinder.

[0060] Example 1

[0061] This embodiment is a preferred embodiment of the above basic example. Figures 1 to 7 As shown, an industrial integrated automatic control AGV hydraulic station is disclosed, which includes a power device, which includes an oil collecting pan assembly 100, an oil tank assembly 200, a first control valve group 300, an oil supply motor pump group 400, a second control valve group 500, an emergency release valve group 600, a pressure gauge assembly 700, a pipeline assembly 800 and a synchronization valve group 900.

[0062] The oil tank assembly 200 includes an oil tank 25, a liquid level meter 19, an oil return filter 16, an air filter 20, and a liquid level and temperature relay 17. The liquid level meter 19 is connected to the oil tank 25 to directly display the liquid level in the oil tank. The air filter 20 is connected to the inside of the oil tank 25. The top of the oil tank 25 is provided with a liquid level and temperature relay 17, which is connected to the PLC to realize the liquid level and temperature alarm for remote monitoring. The top of the oil tank 25 is provided with an oil return filter 16, which can effectively filter the hydraulic oil returned to the oil tank to ensure the cleanliness of the hydraulic oil. The air filter allows gas to enter the oil tank assembly 200, effectively preventing larger particles from entering the oil, and ensuring the safety of the industrial integrated automatic control hydraulic unit. In this solution, the above-mentioned structural form is adopted to detect the liquid level of the oil tank, and the staff can intuitively see the height of the oil. The liquid level and temperature relay timely feeds back the oil level and oil temperature data to the main control PLC system to improve the safety and stability of the power unit. The air filter allows gas to enter the fuel tank, effectively preventing larger particles from entering the power unit and ensuring the safety of the power unit.

[0063] The first control valve group 300 includes a valve block body, a first pressure sensor 8, a relief valve 6, a first solenoid valve 7, a second solenoid valve 15, a pressure measuring joint 11, a sequence valve 26, a stop valve 22, an accumulator 23, a logic valve 12, a shuttle valve 13, and an electric proportional reversing valve 14, which are used to realize the pressure, flow, and direction control of the hydraulic circuit; the first pressure sensor 8 provides pressure feedback of a specific position of the first control valve group 300, the relief valve 6 and the solenoid valve 7 form an electromagnetic relief valve, which can realize the remote control system pressure of the hydraulic station, and the two ends of the two valves are respectively connected to the outlet of the oil tank and the oil supply motor pump, which can realize the remote control system pressure of the hydraulic station, and is used as a system safety valve to protect the power device, the pressure measuring joint 11 is connected to the pressure gauge 9 through the pressure measuring line 10 to realize visual detection of the pressure operation state of the hydraulic station, and the sequence valve 26 adds a return oil back pressure to the total return oil circuit of the hydraulic station to ensure that the actuator cylinder descends at an appropriate speed under the working condition of back pressure, thereby ensuring the safety of the equipment falling back. The stop valve 22 and the accumulator 23 form an accumulator assembly for absorbing the pulse pressure of the hydraulic station system to ensure the safe operation of the equipment. The logic valve 12, the shuttle valve 13, and the electric proportional reversing valve 14 form a control module for controlling the direction, flow, and pressure of the control valve group.

[0064] The oil supply motor pump group 400 includes a gear pump 3, a mounting valve block, a one-way valve 4, a high-pressure filter 5, a coupling 2, a DC motor 1, and a driver. The inlet of the motor pump group is connected to the oil tank assembly 200, and the outlet of the oil supply motor pump group 400 is connected to the first control valve group 300 through an oil pipe for oil supply. The one-way valve 4 plays a reverse pressure-maintaining role on the system pressure in the control oil circuit.

[0065] The second control valve group 500 includes a valve block body, a second pressure sensor 28, a second solenoid valve 15, a pressure measuring connector 11, a logic valve 12, a shuttle valve 13, and an electric proportional reversing valve 14, which are used to realize flow and direction control of the hydraulic circuit; the second pressure sensor 28 provides pressure feedback at a specific position of the second control valve group 500, and the pressure measuring connector 11 is connected to a pressure gauge through a pressure measuring line to realize visual detection of the pressure operating status of the hydraulic station. The logic valve 12, the shuttle valve 13, and the electric proportional reversing valve 14 constitute a control module for controlling direction, flow, and pressure of the second control valve group 500.

[0066] The emergency release valve group 600 includes a valve block body and a third solenoid valve 21, which are used to implement emergency pressure relief control of the hydraulic circuit, and quickly release the pressure inside the actuator cylinder in an emergency situation, thereby protecting the equipment and personnel's safe work; the third solenoid valve 21 controls the emergency pressure relief function of the four actuator cylinders respectively.

[0067] The synchronous valve group 900 includes a valve block body and a fourth solenoid valve 27, which are used to realize that the hydraulic circuit can control the synchronous leveling of the displacement of the actuator cylinder of the hydraulic station, thereby ensuring the synchronous leveling of the displacement of the actuator cylinder of the equipment and realizing safe operation of the equipment.

[0068] The pressure gauge assembly 700 comprises a pressure gauge 9, a dedicated pressure measuring line 10, and a pressure measuring joint 11. The pressure gauge assembly 700 is arranged on one side of the second control valve group 500, and can display specific values ​​of working pressures at different positions of the hydraulic station, and is used to monitor pressure changes at various key positions of the hydraulic station to ensure normal and safe operation of the hydraulic station.

[0069] The pipeline assembly 800 includes a pipe joint, a precision steel pipe, and a hose, and serves as a line for transmitting the hydraulic oil of the power device, and is connected to the oil tank assembly 200, the oil supply motor pump assembly 400, the first control valve assembly 300, the second control valve assembly 500, the emergency release valve assembly 600, the synchronization valve assembly 900, and the pressure gauge assembly 700 to form a flow channel for the hydraulic oil;

[0070] In this solution, the above structure is adopted to realize the switching of opening the working oil circuit and closing the return oil circuit through the first control valve group 300 and the second control valve group 500, which is easy to operate and maintain. At the same time, the first control valve group 300 can control the action speed and the maximum safety pressure of the return oil circuit, thereby ensuring the stability and safety of the power device.

[0071] Preferably, the power device includes a high-pressure filter 5, and both ends of the high-pressure filter 5 are respectively connected to the first one-way valve 4 to ensure the cleanliness of the system oil. In this solution, the above-mentioned structural form is adopted to effectively prevent large-diameter solid particles from entering the system through the high-pressure filter 5 to cause oil line blockage or valve jamming, thereby ensuring the safety of the power device and extending its service life.

[0072] Preferably, the power device includes a first pressure gauge, a second pressure gauge, a third pressure gauge, a fourth pressure gauge, a fifth pressure gauge, a first pressure sensor, a second pressure sensor, and a third pressure sensor. The first pressure gauge, the second pressure gauge, the third pressure gauge, the fourth pressure gauge, the fifth pressure gauge, the first pressure sensor, the second pressure sensor, and the third pressure sensor are all connected to the working oil circuit. The above-mentioned pressure gauge set sensors cooperate with each other to display the specific values ​​of the working pressure at different positions of the hydraulic station, which are used to monitor the pressure changes at various key positions of the hydraulic station to ensure the normal and safe operation of the hydraulic station; the pressure value of the working oil circuit is fed back to the main control PLC system in time through the first pressure sensor, the second pressure sensor, and the third pressure sensor, so that the staff can monitor the operating status of the power device in real time;

[0073] In this solution, the above structure is adopted, and the pressure gauge is used to display the pressure on the spot, so that the staff can control it according to the pressure situation to ensure the safety and stability of the power device. In addition, the pressure detected by the pressure sensor can realize the full and remote monitoring of the pressure of the power device.

[0074] The first control valve group 300 and the second control valve group 500 also include a pressure measuring joint 11, which is connected to the working oil circuit. In addition, the pressure measuring joint 11 is connected to the pressure gauge assembly 700 through a pressure measuring line 10, so that pressure measurement can be performed on site to ensure the safety of the power device.

[0075] The first control valve group 300, the second control valve group 500, the emergency release valve group 600, and the synchronization valve group 900 cooperate with each other and can be effectively combined to realize various actions designed for the hydraulic circuit, and cooperate with the main control PLC system to realize automated work.

[0076] The industrial integrated automatic control AGV hydraulic station provided by the present invention includes the power device, which can provide a stable and safe power source for the actuator of the industrial automatic transmission AGV robot, so that the actuator of the industrial automatic transmission AGV robot can complete related tasks more accurately, conveniently and stably and work stably for a long time.

[0077] In the description of the present application, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0078] The above describes the specific embodiments of the present invention. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art can make various changes or modifications within the scope of the claims, which does not affect the essence of the present invention. In the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other arbitrarily.

Claims

1. A power device, characterized in that: It includes an oil collecting pan assembly, an oil tank assembly, a control valve assembly, an oil supply motor pump assembly and a pipeline assembly; The control valve group is located on the side of the oil tank assembly, and the oil supply motor pump group is arranged between the oil tank assembly and the control valve group; The inlet of the oil supply motor pump group is connected to the oil outlet of the oil tank assembly, and the control valve group is respectively connected to the outlet of the oil supply motor pump group, the oil return port of the oil tank assembly and the actuator cylinder through the pipeline assembly, and is used to control the pressure, flow and direction of the hydraulic circuit; The control valve group includes a first control valve group and a second control valve group; The first control valve group and the second control valve group are respectively arranged on both sides of the oil tank assembly, and the oil supply motor pump group is arranged between the first control valve group and the oil tank assembly; The first control valve group and the second control valve group are both connected to one or more actuator cylinders; The first control valve group includes a first valve block body, a relief valve, a first solenoid valve, a first pressure sensor and a first control valve module, the relief valve and the first solenoid valve form an electromagnetic relief valve, the inlet of the electromagnetic relief valve is connected to the first outlet of the oil supply motor pump group, and the outlet of the electromagnetic relief valve is connected to the oil tank assembly; The first control valve module is connected to the second outlet of the oil supply motor pump group, the actuator cylinder and the oil tank assembly, and a first pressure sensor is provided between the second outlet of the oil supply motor pump group and the first control valve module, and between the first control valve module and the actuator cylinder; The second control valve group includes a second valve block body, a second pressure sensor and a second control valve module. The second control valve module is connected to the second outlet of the oil supply motor pump group, the actuator cylinder and the oil tank assembly, a second pressure sensor is arranged between the second control valve module and the actuator cylinder, and each actuator cylinder is connected to a first control valve module or a second control valve module; The first control valve module and the second control valve module both include a logic valve, a shuttle valve, an electric proportional reversing valve and a second solenoid valve, and the inlet of the logic valve is connected to the second outlet of the oil supply motor pump group; The two oil ports on one side of the electric proportional reversing valve are respectively connected to the rod chamber of the actuator cylinder and the rodless chamber of the actuator cylinder, and the two oil ports on the other side of the electric proportional reversing valve are respectively connected to the outlet of the logic valve and the oil tank assembly; The oil inlet of the shuttle valve is connected to the two oil ports on one side of the electric proportional reversing valve, and the oil outlet of the shuttle valve is connected to the spring chamber on one side of the logic valve. The shuttle valve is used to control the switch of the logic valve.

2. The power device according to claim 1, characterized in that: The oil tank assembly, control valve group and oil supply motor pump group are all installed on the oil collecting pan assembly, the overflow valve, the first solenoid valve, the first pressure sensor and the first control valve module are all installed in the first valve block body, and the second control valve module and the second pressure sensor are all installed in the second valve block body.

3. The power device according to claim 1, characterized in that: It also includes a synchronous valve group, which is installed on one side of the second control valve group; The second control valve group is connected to multiple actuator cylinders, and the synchronization valve group includes multiple fourth solenoid valves. Among the multiple actuator cylinders, the rod chambers of adjacent actuator cylinders are connected through the fourth solenoid valve, and the rodless chambers of adjacent actuator cylinders are connected through the fourth solenoid valve.

4. The power device according to claim 1, characterized in that: The oil tank assembly includes a return oil filter, a liquid level and temperature relay, a liquid level gauge, an air filter, an oil drain ball valve and an oil tank; The oil return filter is set upstream of the oil return port of the oil tank, the liquid level gauge is installed on the side wall of the oil tank, and the oil drain ball valve is set at the bottom of the oil tank; The air filter and the liquid level and temperature relay are both installed on the top of the fuel tank, and the liquid level and temperature relay are electrically connected to the external electronic control components.

5. The power device according to claim 1, characterized in that: The oil supply motor pump group includes a motor, a coupling, a gear pump, a check valve and a high-pressure filter which are connected in sequence; The inlet of the gear pump is provided with an oil suction filter, and is connected to the oil tank assembly through the oil suction filter, and the outlet of the high-pressure filter is connected to the control valve group.

6. The power device according to claim 1, characterized in that: It also includes an emergency release valve group and a pressure gauge assembly, wherein the emergency release valve group includes a third valve block body and a third solenoid valve located inside the third valve block body; The two oil ports of the third solenoid valve are respectively connected to the oil tank assembly and the pipe section between the actuator oil cylinder and the control valve assembly; The pressure gauge assembly includes a pressure gauge, a pressure measuring line and a pressure measuring joint, which are connected in sequence and arranged between the control valve assembly and the oil supply motor pump group, and between the control valve assembly and the actuator cylinder.

7. The power device according to claim 1, characterized in that: The first control valve group also includes a one-way sequence valve, a stop valve and an accumulator; The inlet of the one-way sequence valve is connected to the first control valve module and the second control valve module, and the outlet of the one-way sequence valve is connected to the outlet of the electromagnetic overflow valve and the oil tank assembly respectively; The stop valve and the accumulator are connected in sequence to form an accumulator assembly, and the accumulator assembly includes a first accumulator assembly, a second accumulator assembly and a third accumulator assembly; The first accumulator assembly is arranged in the pipe section at the second outlet of the oil supply motor pump group, the second accumulator assembly is arranged between the first control valve module and the actuator cylinder, and the third accumulator assembly is arranged between the second control valve module and the actuator cylinder.

8. An industrial integrated automatic control AGV hydraulic station, characterized in that: The power device comprises any one of claims 1 to 7, the power device is installed inside the housing of the AGV hydraulic station, the piston rod of the actuator cylinder is connected to the bottom of the loading platform, and the pressure gauge assembly of the power device is embedded in the hole of the housing of the AGV hydraulic station.

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