Mechanical integrated intelligent electric hydraulic actuator

Abstract

The utility model discloses a mechanical integrated type intelligent electric hydraulic actuator which comprises an external protective shell, a control module is fixedly installed on the side surface of one end of the external protective shell, a rotating pushing mechanism is arranged on the outer surface of a buckling base, and the mechanical integrated type intelligent electric hydraulic actuator is suitable for valve installation bases with different thicknesses through the rotating pushing mechanism. And the buckling base can be mounted on valves with different thicknesses. According to the mechanical integrated intelligent electric hydraulic actuator, when the actuator needs to be mounted, the corresponding split clamping blocks can be selected and clamped into the mounting position of a valve, then the buckling base can be inserted into the valve, then the wedge blocks are inserted into the two sides of the buckling base, and then the large nut can be screwed to drive the buckling ring to move; when the actuator is fixed on the valve, the buckling ring is close to the wedge-shaped block and makes contact with the wedge-shaped block, the wedge-shaped block clamps the split clamping block along with downward pressing and tightening of the buckling ring, the split clamping block clamps the valve, the actuator is fixed to the valve, and the universality of the actuator is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of actuators, in particular to a mechanically integrated intelligent electric hydraulic actuator. Background Art

[0002] The actuator is an indispensable and important component of the automatic control system. Its main function is to receive the control signal sent by the controller, change the size of the controlled medium, and maintain the value within the required range to maintain the opening and closing of the valve pipeline, so that the actuator can control the flow of liquid and gas and maintain a certain flow through the valve. Most of the components of the existing actuator are exposed when in use, which will cause dust to come into contact with the moving parts and affect the flexibility of movement. In addition, when connecting the actuator to the valve, due to the different hole positions of the valve and the actuator, it is necessary to select the corresponding base for connection and installation. The corresponding model needs to be selected for installation, which makes it very easy to make mistakes and is inconvenient to use. Utility Model Content

[0003] The purpose of the present invention is to provide a mechanically integrated intelligent electric hydraulic actuator to solve the problem in the background art that valves cannot be used universally due to different connection points.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a mechanically integrated intelligent electric hydraulic actuator, comprising an external protective shell, a control module fixedly mounted on the side surface of one end of the external protective shell, an aviation socket provided on the side surface of the control module, and a backup power supply provided inside the control module, a snap-fit ​​base fixedly mounted on the outer surface of one end of the external protective shell, and the snap-fit ​​base and the external protective shell are concentrically designed, a rotating and sliding mechanism provided on the outer surface of the snap-fit ​​base, which adapts to valve mounting bases of different thicknesses through the rotating and sliding mechanism, so that the snap-fit ​​base can be installed on valves of different thicknesses.

[0005] Preferably, the rotating and pushing mechanism includes: a wedge block, which is slidably mounted on the outer surfaces of both sides of the buckling base, and a large nut is threadedly mounted on the outer surface of the buckling base, the large nut and the buckling base are concentrically designed, and a split card block is provided on the inner side of the buckling base, the split card block is engaged with the wedge block, and the end of the wedge block located outside the buckling base is inclined, a buckling ring is rotatably mounted on the outer surface of the large nut, and the buckling ring is engaged with the wedge block, and the wedge block and the buckling ring are slidably connected.

[0006] By adopting the above technical solution, the split card block can be replaced according to the model of the valve, and then the snap-fit ​​base can be inserted into the valve, and the split card block can be inserted into the snap-fit ​​base. Then, the large nut can be rotated to drive the snap-fit ​​ring to move, so that the snap-fit ​​ring can be inserted into the wedge block. Through the inclined surface of the wedge block and the downward movement of the snap-fit ​​ring, the wedge block slides and clamps the split card block, so that the split card block can clamp the valve, which makes it convenient to replace different split card blocks and install them on valves of different models, thereby improving the versatility of the actuator.

[0007] Preferably, the external protective shell is divided into two parts, and the external protective shells are threadedly connected, and an annular light strip is embedded and installed at one end of the external protective shell away from the snap-on base. The external protective shell and the annular light strip are concentrically designed, and the wires of the annular light strip are connected to the control module.

[0008] By adopting the above technical solution, the operating status of the actuator can be observed from a distance through the annular light strip, and the separate design of the external protective shell can facilitate the inspection and maintenance of the parts inside the external protective shell.

[0009] Preferably, an elastic sliding mechanism is provided inside the outer protective shell, and the elastic sliding mechanism enables the device to move up and down to control the opening and closing of the valve.

[0010] By adopting the above technical solution, the actuator can be operated to control the opening and closing of the valve, maintain the degree of valve opening and closing, reduce the contact between dust and impurities and moving parts, and improve the service life of the actuator.

[0011] Preferably, the elastic sliding mechanism includes: a hydraulic cylinder, which is slidably installed inside an external protective shell, and a spring is provided between the external protective shell and the hydraulic cylinder, a pump body is fixedly installed inside the external protective shell, and both ends of the pump body pass through both ends of the hydraulic cylinder, and the hydraulic cylinder and the pump body are connected by a hose, a magnetic scale is provided at one end of the hydraulic cylinder away from the annular light strip, and one end of the magnetic scale is fixedly installed inside the external protective shell, and a piston block is slidably installed inside the hydraulic cylinder.

[0012] By adopting the above technical solution, when the hydraulic cylinder is started, the liquid at both ends of the hydraulic cylinder will be sucked in and discharged. The hydraulic cylinder can move inside the external protective shell by fixing the piston block, and the moving length of the hydraulic cylinder is measured by the magnetic scale. The internal parts are protected from external dust and liquid by the external protective shell and the snap-fit ​​base, so that the service life of the actuator can be extended.

[0013] Preferably, a connecting block is installed through the outer surface of the snap-fit ​​base, and the moving rod is slidably connected to the snap-fit ​​base, and the snap-fit ​​base and the moving rod are concentrically designed. One end of the moving rod is fixedly connected to the hydraulic cylinder, and the hydraulic cylinder and the moving rod are concentrically designed. The end of the moving rod located outside the external protective shell is snap-fitted with a connecting block, and the connecting block is snap-fitted with the execution end of the valve.

[0014] By adopting the above technical solution, when the hydraulic cylinder moves, it will drive the moving rod to move together, so that the moving rod can extend out of the snap-fit ​​base to move, and can be connected to different valve operating rods by replacing different connecting blocks.

[0015] Preferably, an adjusting cover is rotatably mounted on one end of the outer protective shell away from the snap-on base, and the adjusting cover and the outer protective shell are concentrically designed, the hydraulic cylinder and the piston block are linked by sliding friction, and the piston block and the adjusting cover are threadedly connected.

[0016] By adopting the above technical solution, the piston block can be moved inside the hydraulic cylinder by rotating the adjusting cover, which facilitates the adjustment of the stroke of the hydraulic cylinder. In addition, when the power is off, the pump body can be switched to manual mode, allowing the spring to push the hydraulic cylinder to reset, so that the valve is automatically closed when the power is off.

[0017] Compared with the prior art, the beneficial effects of the present invention are: the mechanically integrated intelligent electric hydraulic actuator:

[0018] 1. When the actuator needs to be installed on the valve, the corresponding split card block can be selected and inserted into the installation position of the valve. Then the snap-on base can be inserted into the valve, and the wedge blocks can be inserted into both sides of the snap-on base. Then the large nut can be turned and moved with the snap-on ring, so that the snap-on ring is close to the wedge block and contacts the wedge block. As the snap-on ring is pressed down and tightened, the wedge block will clamp the split card block, allowing the split card block to clamp the valve, so that the actuator is fixed on the valve and improves the versatility of the actuator.

[0019] 2. The control module can effectively control the start-up of the pump body, allowing the pump body to pump out the liquid in the hydraulic cylinder and send it to the other side of the piston block, allowing the hydraulic cylinder to slide inside the external protective shell, allowing the hydraulic cylinder to move the valve actuator to control the valve opening. The magnetic scale detects the movement distance of the hydraulic cylinder, so that the valve opening can be detected. The hydraulic cylinder is set in the external protective shell and the snap-fit ​​base, which can effectively prevent dust and liquid from entering, reducing the wear of the components in the external protective shell caused by contact with dust and corrosion damage caused by liquid, thereby extending the service life of the actuator. The control module and magnetic scale can also detect the opening and closing degree of the valve.

[0020] 3. The power supply connected to the control module activates the annular light strip when the actuator is in use, allowing people to see whether the actuator is running from a distance. In the event of a power outage, the annular light strip changes color to remind workers that the power is off. The backup power in the control module allows workers to directly see the annular light strip when the actuator is powered off, and the valve can be closed using the backup power supply. When the actuator is completely powered off, the manual mode of the pump body can be turned on. At this time, the spring will push the hydraulic cylinder to reset, allowing the liquid in the hydraulic cylinder to flow back through the pump body, allowing the valve to automatically close in the event of a power outage.

[0021] 4. The piston block can be moved by rotating the adjusting cover, so that the piston block can move inside the hydraulic cylinder, so that the position of the piston block in the hydraulic cylinder can be changed, and the moving distance of the hydraulic cylinder can be adjusted. When the hydraulic cylinder moves to the lowest point, it will engage with the piston block. When the moving rod is connected to the opening and closing part of the valve, it is necessary to select the corresponding connecting block for connection, which improves the versatility of the actuator and enables the formation of the hydraulic cylinder to be adjusted. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the three-dimensional structure of the external protective shell and the buckled base of the utility model;

[0023] Figure 2 This is a schematic diagram of the three-dimensional structure of the buckle ring and the large nut of the utility model;

[0024] Figure 3 This is a schematic diagram of the exploded three-dimensional structure of the buckled base and the wedge-shaped block of the utility model;

[0025] Figure 4 This is a schematic diagram of the three-dimensional structure of the pump body and magnetic scale of the utility model;

[0026] Figure 5 This is a schematic diagram of the three-dimensional structure of the annular light strip and the hydraulic cylinder of the utility model;

[0027] Figure 6 This is a schematic diagram of the exploded sectional structure of the hydraulic cylinder and piston block of the utility model.

[0028] In the figure: 1. External protective shell; 2. Snap-fit ​​base; 3. Control module; 4. Wedge block; 5. Ring light strip; 6. Adjustment cover; 7. Hydraulic cylinder; 8. Spring; 9. Piston block; 10. Pump body; 11. Magnetic scale; 12. Connecting block; 13. Moving rod; 14. Split card block; 15. Snap-fit ​​ring; 16. Large nut. DETAILED DESCRIPTION

[0029] 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.

[0030] See also Figure 1-6 The utility model provides a technical solution: a mechanically integrated intelligent electric hydraulic actuator, comprising an external protective shell 1, a control module 3 is fixedly mounted on the side surface of one end of the external protective shell 1, and an aviation socket is provided on the side surface of the control module 3, and a backup power supply is provided inside the control module 3, a snap-fit ​​base 2 is fixedly mounted on the outer surface of one end of the external protective shell 1, and the snap-fit ​​base 2 is concentric with the external protective shell 1, and a rotating and sliding mechanism is provided on the outer surface of the snap-fit ​​base 2, which adapts to valve mounting bases of different thicknesses through the rotating and sliding mechanism, so that the snap-fit ​​base 2 can be installed on valves of different thicknesses.

[0031] The aviation socket can more effectively connect the device to the outside and improve the waterproofness during connection. After a power outage, the power supply in the control module 3 can briefly provide power for a period of time to facilitate power off in the event of a power outage.

[0032] The rotating and sliding mechanism includes: a wedge block 4, which is slidably installed on the outer surfaces of both sides of the buckling base 2, and a large nut 16 is threadedly installed on the outer surface of the buckling base 2, and the large nut 16 and the buckling base 2 are concentrically designed, and a split card block 14 is provided on the inner side of the buckling base 2, and the split card block 14 is engaged with the wedge block 4, and the end of the wedge block 4 located outside the buckling base 2 is inclined, and a buckling ring 15 is rotatably installed on the outer surface of the large nut 16, and the buckling ring 15 is engaged with the wedge block 4, and the wedge block 4 and the buckling ring 15 are slidably connected.

[0033] When the actuator needs to be installed on the outer surface of the valve, it is necessary to first select the corresponding split card block 14 and install the split card block 14 on the mounting end of the valve. Then the snap-fit ​​base 2 can be inserted into the valve and the wedge block 4 can be inserted into both sides of the snap-fit ​​base 2. Then the large nut 16 can be screwed to move the large nut 16 with the snap-fit ​​ring 15, so that the snap-fit ​​ring 15 contacts and squeezes the wedge block 4, so that the wedge block 4 moves with the squeezing, so that the split card block 14 is squeezed and the valve is clamped, which is convenient for the installation of valves of different models and improves the versatility of the actuator.

[0034] The external protective shell 1 is divided into two parts, and the external protective shells 1 are threadedly connected, and an annular light strip 5 is embedded and installed at one end of the external protective shell 1 away from the snap-on base 2. The external protective shell 1 and the annular light strip 5 are concentrically designed, and the wires of the annular light strip 5 are connected to the control module 3.

[0035] The operating status of the actuator can be directly viewed through the annular light strip 5, and whether the actuator is running can be checked from a distance. The separate design of the external protective shell 1 allows the parts inside the external protective shell 1 to be easily taken out for replacement and maintenance. The sealing design of the external protective shell 1 and the snap-fit ​​base 2 prevents the internal parts from coming into contact with dust during operation, thereby reducing the acceleration of corrosion and wear caused by the entry of dust and moisture, and improving the service life of the actuator.

[0036] An elastic sliding mechanism is provided inside the external protective shell 1, and the device can be moved up and down by the elastic sliding mechanism to control the opening and closing of the valve. The elastic sliding mechanism includes: a hydraulic cylinder 7, which is slidably installed inside the external protective shell 1, and a spring 8 is provided between the external protective shell 1 and the hydraulic cylinder 7. A pump body 10 is fixedly installed inside the external protective shell 1, and both ends of the pump body 10 pass through the two ends of the hydraulic cylinder 7, and the hydraulic cylinder 7 and the pump body 10 are connected by a hose. A magnetic scale 11 is provided at the end of the hydraulic cylinder 7 away from the annular light strip 5, and one end of the magnetic scale 11 is fixedly installed inside the external protective shell 1, and a piston block 9 is slidably installed inside the hydraulic cylinder 7.

[0037] When the actuator is running, the control module 3 will issue a command to start the pump body 10, extract the liquid in the hydraulic cylinder 7 and send it to the other side of the piston block 9, so that the hydraulic cylinder 7 can be driven by the movement of the liquid to move the hydraulic cylinder 7, so that the hydraulic cylinder 7 can move along the inside of the external protective shell 1. The spring 8 makes the hydraulic cylinder 7 faster when resetting and closing the valve, and the moving distance of the hydraulic cylinder 7 can be detected by the magnetic scale 11, so that the opening of the valve can be detected, cooperating with the control module 3 to control the opening and closing size of the valve.

[0038] A connecting block 12 is installed through the outer surface of the snap-fit ​​base 2, and the moving rod 13 is slidably connected to the snap-fit ​​base 2, and the snap-fit ​​base 2 and the moving rod 13 are concentrically designed. One end of the moving rod 13 is fixedly connected to the hydraulic cylinder 7, and the hydraulic cylinder 7 and the moving rod 13 are concentrically designed. The end of the moving rod 13 located outside the external protective shell 1 is snap-fitted with a connecting block 12, and the connecting block 12 is snap-fitted with the execution end of the valve.

[0039] When the hydraulic cylinder 7 moves, it will move with the moving rod 13, allowing the valve to open and close. When the moving rod 13 is connected to the actuator of the valve, different connecting blocks 12 can be replaced according to the connection port of the valve to facilitate connection to different connection ports.

[0040] An adjusting cover 6 is rotatably mounted on one end of the outer protective shell 1 away from the snap-on base 2, and the adjusting cover 6 and the outer protective shell 1 are concentrically designed, the hydraulic cylinder 7 and the piston block 9 are linked by sliding friction, and the piston block 9 and the adjusting cover 6 are threadedly connected.

[0041] By twisting the adjusting cover 6, the piston block 9 can be pushed to move inside the hydraulic cylinder 7, which facilitates the adjustment of the moving range of the hydraulic cylinder 7. After the hydraulic cylinder 7 moves to a certain position, it will engage with the piston block 9. After the power is cut off, the pump body 10 is switched to manual mode, and the spring 8 will push the hydraulic cylinder 7 to reset, allowing the liquid in the hydraulic cylinder 7 to flow freely and the valve to be closed.

[0042] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A mechanically integrated intelligent electric hydraulic actuator, comprising an outer protective shell (1), a control module (3) fixedly mounted on a side surface of one end of the outer protective shell (1), an aviation connection socket provided on a side surface of the control module (3), and a backup power supply provided inside the control module (3), a snap-fit ​​base (2) fixedly mounted on an outer surface of one end of the outer protective shell (1), and the snap-fit ​​base (2) and the outer protective shell (1) are concentrically designed, characterized in that: The outer surface of the snap-fit ​​base (2) is provided with a rotation and sliding mechanism, which adapts to valve mounting bases of different thicknesses through the rotation and sliding mechanism, so that the snap-fit ​​base (2) can be installed on valves of different thicknesses.

2. The mechanically integrated intelligent electro-hydraulic actuator according to claim 1, characterized in that: The rotation and pushing mechanism comprises: a wedge block (4), the wedge block (4) is slidably mounted on the outer surfaces of both sides of the buckling base (2), and a large nut (16) is threadedly mounted on the outer surface of the buckling base (2), the large nut (16) and the buckling base (2) are designed to be concentric, and a split card block (14) is provided on the inner side of the buckling base (2), the split card block (14) is plugged into the wedge block (4), and one end of the wedge block (4) located outside the buckling base (2) is designed to be inclined, a snap ring (15) is rotatably mounted on the outer surface of the large nut (16), and the snap ring (15) is snapped into the wedge block (4), and the wedge block (4) and the snap ring (15) are slidably connected.

3. The mechanically integrated intelligent electro-hydraulic actuator according to claim 1, characterized in that: The outer protective shell (1) is divided into two parts, and the outer protective shells (1) are threadedly connected, and an annular light strip (5) is embedded and installed at one end of the outer protective shell (1) away from the snap-on base (2). The outer protective shell (1) and the annular light strip (5) are concentrically designed, and the wires of the annular light strip (5) are connected to the control module (3).

4. The mechanically integrated intelligent electro-hydraulic actuator according to claim 1, characterized in that: An elastic sliding mechanism is provided inside the outer protective shell (1), and the device can be moved up and down by the elastic sliding mechanism to control the opening and closing of the valve.

5. The mechanically integrated intelligent electro-hydraulic actuator according to claim 4, characterized in that: The elastic sliding mechanism comprises: a hydraulic cylinder (7), the hydraulic cylinder (7) is slidably mounted inside an external protective shell (1), and a spring (8) is provided between the external protective shell (1) and the hydraulic cylinder (7), a pump body (10) is fixedly mounted inside the external protective shell (1), and both ends of the pump body (10) pass through both ends of the hydraulic cylinder (7), and the hydraulic cylinder (7) and the pump body (10) are connected by a hose, a magnetic scale (11) is provided at one end of the hydraulic cylinder (7) away from the annular light strip (5), and one end of the magnetic scale (11) is fixedly mounted inside the external protective shell (1), and a piston block (9) is slidably mounted inside the hydraulic cylinder (7).

6. The mechanically integrated intelligent electro-hydraulic actuator according to claim 1, characterized in that: A connecting block (12) is installed through the outer surface of the snap-fit ​​base (2), and the moving rod (13) is slidably connected to the snap-fit ​​base (2), and the snap-fit ​​base (2) and the moving rod (13) are concentrically designed. One end of the moving rod (13) is fixedly connected to the hydraulic cylinder (7), and the hydraulic cylinder (7) and the moving rod (13) are concentrically designed. The connecting block (12) is installed on one end of the moving rod (13) located outside the external protective shell (1), and the connecting block (12) is snap-fitted with the execution end of the valve.

7. The mechanically integrated intelligent electro-hydraulic actuator according to claim 6, characterized in that: An adjusting cover (6) is rotatably mounted on one end of the outer protective shell (1) away from the snap-fit ​​base (2), and the adjusting cover (6) and the outer protective shell (1) are concentrically designed. The hydraulic cylinder (7) and the piston block (9) are linked by sliding friction, and the piston block (9) and the adjusting cover (6) are threadedly connected.

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