Integrated control type electric-hydraulic pusher

Abstract

The utility model discloses an integrated control type electric-hydraulic pusher, relates to the technical field of electric-hydraulic pushers, and aims to solve the problems that the motion control precision is low, only simple reciprocating control can be realized, and the requirement on fine motion is difficult to meet; the utility model relates to an integrated control type electro-hydraulic push rod which solves the problems that in the prior art, an existing electro-hydraulic push rod is in an integrated control mode, a multi-push-rod control mode lags behind, a centralized control mode is adopted, independent control and real-time fine adjustment capacity on a single push rod are lacked, and system flexibility and adaptability to environmental factors are limited, and the integrated control type electro-hydraulic push rod comprises a power unit, an oil cylinder and an integrated valve group, and the oil cylinder is located between the power unit and the integrated valve group; the integrated valve group is connected with the oil cylinder through an oil pipe; the integrated valve set further comprises an integrated valve block, a semicircular groove matched with the oil cylinder in shape is formed in one side of the integrated valve block, and a first port P and a first port T which are used for being connected with a power unit are formed in the other side of the integrated valve block, so that the electric-hydraulic push rod can conveniently and rapidly control input and output. And detected real-time data such as pressure, temperature, displacement and the like are output to the display screen.

Description

Technical Field

[0001] The utility model relates to the technical field of electro-hydraulic push rods, in particular to an integrated control type electro-hydraulic push rod. Background Art

[0002] The electro-hydraulic push rod is a power actuator that integrates mechanics, electricity and hydraulics. It uses an electric motor as the power source to drive the pump to output pressure oil to realize the reciprocating motion of the push rod. Because of its stable operation and high reliability, it is not only widely used in electricity, mining, construction and other aspects, but is also currently used in vehicles. At present, the electro-hydraulic push rods on the market generally only perform simple reciprocating motion, or perform simple program control, but now many uses require not only precise control of the movement process of the electro-hydraulic push rod, but also individual control of each electro-hydraulic push rod when multiple electro-hydraulic push rods are used at the same time, and fine-tune the individual electro-hydraulic push rods considering the influence of various factors. At present, when multiple electro-hydraulic push rods are used at the same time, they are generally centrally controlled.

[0003] Therefore, the present application provides an integrated control electro-hydraulic push rod to meet the needs. Utility Model Content

[0004] The purpose of this application is to provide an integrated control electro-hydraulic push rod, which aims to solve the problems of low motion control accuracy, only being able to achieve simple reciprocating or program control, and being unable to meet the demand for fine motion trajectory; and the multi-push rod control method is backward, adopting a centralized control mode, lacking independent control and real-time fine-tuning capabilities for individual push rods, which limits the system flexibility and adaptability to environmental factors.

[0005] To achieve the above-mentioned objectives, the present application provides the following technical solutions: an integrated control electro-hydraulic push rod, comprising a power unit, a cylinder and an integrated valve group, the cylinder being located between the power unit and the integrated valve group, and the integrated valve group being connected to the cylinder through an oil pipe; a piston rod being slidably connected inside the cylinder; the power unit also includes a motor valve block and a solenoid valve, the top of the motor valve block is connected to a control box through a motor, the bottom of the motor valve block is connected to an oil tank, and the solenoid valve is connected to the side wall of the motor valve block; the integrated valve group also includes an integrated valve block, one side of the integrated valve block is provided with a semicircular groove that is adapted to the shape of the cylinder, and the other side of the integrated valve block is provided with a first P port and a first T port for connecting to the power unit, so that the electro-hydraulic push rod can conveniently and quickly control input and output.

[0006] Preferably, the power unit is provided with a second P port and a second T port that are compatible with the first P port and the first T port, a first sealing ring is provided at the connection between the first P port and the second P port, and a second sealing ring is provided at the connection between the first T port and the second T port, so that the electro-hydraulic push rod can be maintained and repaired more conveniently and quickly.

[0007] Preferably, a pump is further provided in the oil tank, and the oil tank is connected to the motor via the pump. The oil tank is a rectangular parallelepiped or a cube, so that the oil filling amount of the electro-hydraulic push rod is higher under the condition of the same occupied space.

[0008] Preferably, the size of the control box is adapted to the top surface of the motor, a display screen and control buttons are provided on the front of the control box, and socket I and socket II are provided on both sides of the control box respectively. Socket I is connected to a plug, which is connected to the lead-out centralized line of the solenoid valve, and socket II is used to connect to external equipment, so that the electro-hydraulic push rod can be more conveniently controlled through the group port or single control of the external equipment.

[0009] Preferably, a control processor is provided in the control box, and the control buttons also include a power switch, an extension button, and a retraction button. The control buttons are located below the display screen, and a fault light is also provided on the control box to monitor the operating status of the electro-hydraulic push rod in real time.

[0010] Preferably, the integrated valve group also includes a port I connector, a balancing valve, a port II connector, a temperature sensor and a pressure sensor. The port I connector and the port II connector are installed on the front and rear sides of the integrated valve block. There are multiple groups of balancing valves, and the balancing valves, temperature sensors and pressure sensors are all installed on the integrated valve block. The lead wires of the temperature sensor and the pressure sensor are connected to the plug to achieve real-time monitoring of the operating status of the electro-hydraulic push rod.

[0011] Preferably, bosses are connected to the front and rear ends of the integrated valve block, and the integrated valve block is connected to the oil cylinder via the bosses, so that the electro-hydraulic push rod can be maintained more conveniently and quickly.

[0012] Preferably, the oil cylinder also includes a cylinder barrel and a displacement sensor, the piston rod slides in the cylinder barrel, and the displacement sensor is connected to the piston rod in the cylinder barrel, the lead wire of the displacement sensor is connected to the plug, and the two ends of the cylinder barrel are respectively provided with an oil inlet and an oil return port, and a fixing platform adapted to the boss is connected to the side wall of the cylinder barrel, and the boss and the fixing platform are connected by bolts.

[0013] Preferably, the oil pipe also includes an oil inlet pipe and an oil return pipe. The port I connector is connected to the oil inlet through the oil inlet pipe, and the port II connector is connected to the oil return port through the oil return pipe. The electro-hydraulic push rod can control the oil cylinder more conveniently and quickly.

[0014] In summary, the technical effects and advantages of the utility model are:

[0015] The utility model comprises a power unit, an integrated valve assembly, and a cylinder. The power unit includes a pump, a fuel tank, a control box, a solenoid valve, a motor, and a motor valve assembly. The integrated valve assembly includes a valve block, a balancing valve, a temperature sensor, and a pressure sensor. The displacement sensor is installed inside the cylinder. The power unit is fixed and connected to the integrated valve assembly, which is connected to the cylinder via a fuel pipe and fixed to the cylinder barrel. The control box is integrated with the motor and contains a control processor. It also includes an external display, operating buttons, and a fault indicator. The control processor displays real-time data such as pressure, temperature, and displacement on the control box's display.

[0016] In the utility model, the electro-hydraulic push rod can be operated and controlled individually through the operation button on the control box, which is connected to the control processor. The control line on the control box is connected to the external device, so that the device can be controlled individually. After the external connection, group control operation can be carried out through the vehicle or the main console. The two control methods are more convenient and safer; the unit integrated structure makes the electro-hydraulic push rod compact, easy to maintain, and more reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 It is a structural diagram of the utility model;

[0019] Figure 2 This is a schematic cross-sectional view of the oil cylinder of the present utility model;

[0020] Figure 3 This is a schematic diagram of the power unit of the present utility model;

[0021] Figure 4 This is a schematic diagram of the integrated valve group of the utility model;

[0022] Figure 5 This is a schematic diagram of the cylinder structure of the present utility model.

[0023] In the figure: 1. Power unit; 2. Cylinder; 3. Integrated valve group; 4. Oil return pipe; 5. Plug; 6. Oil inlet pipe; 11. Oil tank; 12. Pump; 13. Solenoid valve; 14. Motor valve block; 15. Motor; 16. Control box; 21. Cylinder; 22. Displacement sensor; 23. Piston rod; 31. Integrated valve block; 32. Port I connector; 33. Balancing valve; 34. First P port; 35. First T port; 36. Port II connector; 37. Temperature sensor; 38. Pressure sensor; 161. Control processor; 162. Power switch; 163. Extend button; 164. Retract button; 165. Fault light; 166. Socket I; 167. Socket II; 168. Display screen; 211. Fixing platform; 212. Oil inlet; 213. Oil return port; 311. Boss; 312. Semicircular groove. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example

[0025] refer to Figure 1-5The figure shows an integrated control electro-hydraulic actuator. The actuator comprises a power unit 1, a cylinder 2, an integrated valve block 3, and an oil pipe. The oil pipe also includes an oil return pipe 4 and an oil inlet pipe 6. The power unit 1 further comprises an oil tank 11, a pump 12, a solenoid valve 13, a motor valve block 14, a motor 15, and a control box 16. The oil tank 11 is fixed to one side of the motor valve block 14. The pump 12 is located within the oil tank 11 and fixed to the motor valve block 14. The pump 12 is connected to the motor 15 through the motor valve block 14, and the motor 15 is fixed to the other side of the motor valve block 14. The control box 16 is fixed to the top of the motor 15 and contains a control processor 161. Externally, it is equipped with a power switch 162, an extend button 163, a retract button 164, a fault light 165, sockets I 166 and II 167, and a display screen 168. The extend button 163 and the retract button 164 are inching operation buttons; pressing them activates the actuator and releasing them deactivates the actuator. The solenoid valve 13 is mounted on the motor valve block 14. The lead wires for the displacement sensor 22, temperature sensor 37, pressure sensor 38, and solenoid valve 13 are collectively wired to the plug 5. This plug is plugged into the socket I 166 and connected to the control processor 161 within the control box 16. The display screen 168 displays real-time temperature, pressure, and displacement data. The second P port and second T port of the power unit 1 are sealed with the first P port 34 and first T port 35 of the integrated valve block 3, respectively, via sealing rings. The power unit 1 and the integrated valve block 3 are secured with screws. The integrated valve block 3 is equipped with two balancing valves 33, providing a hydraulic lock. A temperature sensor 37 and a pressure sensor 38 are also mounted on the integrated valve block 3. Port I connectors 32 and port II connectors 36 are located on either side of the integrated valve block 3. Port I connector 32 is connected to the oil inlet 212 of the cylinder 2 via the oil inlet pipe 6, while port II connector 36 is connected to the oil return port 213 of the cylinder 2 via the oil return pipe 4. The integrated valve block 31 has a semicircular groove 312 and a boss 311. The size of the semicircular groove 312 matches the outer diameter of the cylinder 21. The boss 311 is compatible with the fixing platform 211 on the cylinder 21. The semicircular groove 312 can be clamped onto the outer diameter of the cylinder 2. The boss 311 and the fixing platform 211 on the cylinder 21 are fixed with screws, fixing the power unit 1 and the integrated valve block 3 to the cylinder 2. The displacement sensor 22 is installed inside the cylinder 21, and the lead is led out of the cylinder 2 through a cable connector.

[0026] Working principle of this utility: First reset the push rod to Figure 1In the initial position shown, power is supplied to power unit 1, power switch 162 on control box 16 is turned on, motor 15 enters an energized, non-operating state, and display 168 shows the electro-hydraulic push rod temperature, pressure, and displacement data. Pressing and holding extend button 163 causes motor 15 to begin rotating, driving pump 12. Hydraulic oil flows from tank 11 through port 1 connector 32 of integrated valve block 3 and oil inlet pipe 6 to supply oil inlet 212 of cylinder 2. Cylinder 2 operates, piston rod 23 extends, and hydraulic oil in the rod chamber of cylinder 2 returns to tank 11 through oil return port 213, oil return pipe 4, and integrated valve block 3. When cylinder 2 reaches its full travel or needs to be stopped midway, releasing extend button 163 causes both motor 15 and pump 12 to stop, effectively stopping cylinder 2. Integrated valve block 3 is locked, securing cylinder 2 in its stopped position regardless of load. During operation, temperature sensor 37, pressure sensor 38, and displacement sensor 22 monitor operating pressure, temperature, and displacement data in real time. If any temperature or pressure exceeds the value set by control processor 161, fault indicator 165 illuminates and an alarm sounds, alerting the operator of an operational anomaly. To stop at a desired displacement, the system can be adjusted to the desired value by following the display 168, or by extending or retracting the system to the desired value. This provides convenient operation and precise control.

[0027] When a return stroke is required, press and hold the retraction button 164, the motor 15 drives the pump 12 to work, and the hydraulic oil is supplied from the oil tank 11 through the II port connector 36 of the integrated valve group 3 and the return oil pipe 4 to the return oil port 213 of the cylinder 2. At the same time, the hydraulic oil in the rodless chamber of the cylinder 2 returns to the oil tank 11 from the oil inlet 212 through the oil inlet pipe 6 and the integrated valve group 3, and the piston rod 23 retracts.

[0028] All of the above controls can be displayed and operated from the vehicle or facility's main console. You can choose any control mode. If any abnormality occurs during the cylinder's operation, the system can be stopped at any time to prevent misoperation and ensure safer and more reliable operation.

[0029] The electromechanical connection involved in the present invention is a common means used by those skilled in the art, and technical inspiration can be obtained through a limited number of experiments, which belongs to common knowledge.

[0030] Components not described in detail herein are prior art.

[0031] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An electro-hydraulic push rod with integrated control, characterized in that: It comprises a power unit (1), an oil cylinder (2) and an integrated valve group (3), wherein the oil cylinder (2) is located between the power unit (1) and the integrated valve group (3), and the integrated valve group (3) is connected to the oil cylinder (2) via an oil pipe; A piston rod (23) is slidably connected in the oil cylinder (2); The power unit (1) further comprises a motor valve block (14) and a solenoid valve (13); the top of the motor valve block (14) is connected to a control box (16) via a motor (15); the bottom of the motor valve block (14) is connected to an oil tank (11); and the solenoid valve (13) is connected to a side wall of the motor valve block (14); The integrated valve assembly (3) further comprises an integrated valve block (31), one side of the integrated valve block (31) being provided with a semicircular groove (312) adapted to the outer shape of the oil cylinder (2), and the other side of the integrated valve block (31) being provided with a first P port (34) and a first T port (35) for connecting to the power unit (1).

2. The electro-hydraulic push rod with integrated control according to claim 1, characterized in that: The power unit (1) is provided with a second P port and a second T port adapted to the first P port (34) and the first T port (35); a first sealing ring is provided at the connection between the first P port (34) and the second P port; and a second sealing ring is provided at the connection between the first T port (35) and the second T port.

3. The electro-hydraulic push rod with integrated control according to claim 1, characterized in that: A pump (12) is further provided in the oil tank (11), and the oil tank (11) is connected to the motor (15) via the pump (12). The oil tank (11) is in the shape of a cuboid or a cube.

4. The electro-hydraulic push rod with integrated control according to claim 1, characterized in that: The size of the control box (16) is adapted to the top surface of the motor (15). A display screen (168) and control buttons are provided on the front of the control box (16). Socket I (166) and socket II (167) are provided on both sides of the control box (16). A plug (5) is connected to the socket I (166), and the plug (5) is connected to the lead-out centralized line of the solenoid valve (13). The socket II (167) is used to connect to an external device.

5. The electro-hydraulic push rod with integrated control according to claim 4, characterized in that: The control box (16) is provided with a control processor (161), and the control buttons further include a power switch (162), an extension button (163), and a retraction button (164). The control buttons are located below the display screen (168). The control box (16) is also provided with a fault light (165).

6. The electro-hydraulic push rod with integrated control according to claim 5, characterized in that: The integrated valve group (3) further comprises a port I connector (32), a balancing valve (33), a port II connector (36), a temperature sensor (37) and a pressure sensor (38), wherein the port I connector (32) and the port II connector (36) are mounted on the front and rear sides of the integrated valve block (31), the balancing valve (33) is provided in multiple groups, and the balancing valve (33), the temperature sensor (37) and the pressure sensor (38) are all mounted on the integrated valve block (31), and the lead wires of the temperature sensor (37) and the pressure sensor (38) are connected to the plug (5).

7. The electro-hydraulic push rod with integrated control according to claim 6, characterized in that: Bosses (311) are connected to the front and rear ends of the integrated valve block (31), and the integrated valve block (31) is connected to the oil cylinder (2) via the bosses (311).

8. The electro-hydraulic push rod with integrated control according to claim 7, characterized in that: The oil cylinder (2) further comprises a cylinder barrel (21) and a displacement sensor (22). The piston rod (23) slides in the cylinder barrel (21), and the displacement sensor (22) is connected to the piston rod (23) in the cylinder barrel (21). A lead wire of the displacement sensor (22) is connected to the plug (5). An oil inlet (212) and an oil return port (213) are respectively provided at both ends of the cylinder barrel (21). A fixing platform (211) adapted to the boss (311) is connected to the side wall of the cylinder barrel (21), and the boss (311) and the fixing platform (211) are connected by bolts.

9. The electro-hydraulic push rod with integrated control according to claim 8, characterized in that: The oil pipe further comprises an oil inlet pipe (6) and an oil return pipe (4); the port I connector (32) is connected to the oil inlet (212) via the oil inlet pipe (6); and the port II connector (36) is connected to the oil return port (213) via the oil return pipe (4).

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