Electro-hydraulic actuator capable of adjusting slow closing

Abstract

The utility model discloses an electro-hydraulic actuator capable of adjusting slow closing, which comprises an electro-hydraulic actuator, the electro-hydraulic actuator comprises a hydraulic pump system, a hand-operated direction valve and a hand-operated pump control rod, the hand-operated direction valve is rotatably connected to one end of the side edge of the hydraulic pump system, and the hand-operated pump control rod is fixed to the other end of the side edge of the hydraulic pump system; the limiting assembly comprises a spring column, a movable plate, a through hole, a second groove and a limiting block, one end of the spring column is fixed to the side edge of the hydraulic pump system and located on the side edge of the manual reversing valve, the movable plate is fixed to the other end of the spring column, the through hole is formed in the middle of the movable plate, and the second groove is formed in the inner side edge of the through hole; the limiting block is fixed to the side edge of the hand-operated direction valve. The problems that due to the fact that a manual reversing valve is exposed on the outer side of a hydraulic pump system, misoperation is caused, the valve is opened or closed accidentally, normal production is affected, and even safety accidents are caused are solved.

Description

Technical Field

[0001] This utility model relates to the field of electro-hydraulic actuator technology, and in particular to an adjustable slow-closing electro-hydraulic actuator. Background Technology

[0002] An adjustable slow-closing electro-hydraulic actuator is an electro-hydraulic actuator capable of adjusting the closing speed and force. It uses an electric motor to drive a hydraulic pump, converting electrical energy into hydraulic energy to control the movement of the hydraulic cylinder. It mainly consists of an electric motor, pump, hydraulic cylinder, and control valves. The control valves regulate the flow direction and volume of the hydraulic oil, achieving precise control of the controlled object. Existing adjustable slow-closing electro-hydraulic actuators' hydraulic pump systems are equipped with manual directional valves and a manual pump, allowing for manual start-up and shut-down of the hydraulic pump when electric control is not possible.

[0003] The manual directional valve is exposed outside the hydraulic pump system, which can lead to misoperation, accidental opening or closing of the valve, thereby affecting normal production and even causing safety accidents. Therefore, an adjustable slow-closing electro-hydraulic actuator is needed to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide an adjustable slow-closing electro-hydraulic actuator to solve the problem mentioned in the background art, where the manual directional valve is exposed outside the hydraulic pump system, which can lead to misoperation, accidental opening or closing of the valve, thereby affecting normal production and even causing safety accidents.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to an adjustable slow-closing electro-hydraulic actuator, comprising:

[0007] An electro-hydraulic actuator, comprising a hydraulic pump system, a manual directional valve, and a manual pump control lever, wherein the manual directional valve is rotatably connected to one end of the hydraulic pump system, and the manual pump control lever is fixed to the other end of the hydraulic pump system;

[0008] The limiting assembly includes a spring column, a movable plate, a through hole, a second groove, and a limiting block. One end of the spring column is fixed to the side of the hydraulic pump system and located on the side of the manual directional valve. The movable plate is fixed to the other end of the spring column. The through hole is opened in the middle of the movable plate. The second groove is opened on the inner side of the through hole. The limiting block is fixed to the side of the manual directional valve.

[0009] Furthermore, the limiting component also includes a first groove, which is formed on the side of the hydraulic pump system, and one end of the spring post is inserted into and fixed in the first groove.

[0010] Furthermore, the end of the manual directional valve away from the hydraulic pump system is inserted into the through hole, and the limiting block is inserted into the second groove.

[0011] Furthermore, the electro-hydraulic actuator also includes an intelligent electrical control box and a helical swing arm. The intelligent electrical control box is fixed to the side of the helical swing arm by bolts, and the hydraulic pump system is fixed to the other side of the helical swing arm by bolts.

[0012] Furthermore, it also includes a positioning component, which includes a fixed plate, a connecting shaft, a torsion spring, and an L-shaped connecting plate. The fixed plate is fixed to the lower side surface of the hydraulic pump system, the connecting shaft is fixed between the two fixed plates, the L-shaped connecting plate is sleeved on the upper section of the connecting shaft, and the torsion spring is sleeved on both ends of the connecting shaft, with one end fixed to the L-shaped connecting plate and the other end fixed to the fixed plate.

[0013] Furthermore, the positioning component also includes an arc-shaped surface, which is formed at one end of the L-shaped connecting plate, and the movable plate is movably connected to the arc-shaped surface.

[0014] Compared with existing technologies, the advantages of this utility model are:

[0015] I. This utility model, through the setting of the limiting component, when it is necessary to rotate the manual directional valve, the movable plate is pushed by hand, which causes the spring column in the first groove to be compressed, so that the through hole in the movable plate is disengaged from the knob at the front end of the manual directional valve, and the second groove is disengaged from the limiting block. Then, the knob at the front end of the manual directional valve is rotated to switch the valve opening and closing functions. This setting can avoid misoperation when the manual directional valve is not needed.

[0016] II. This utility model, through the positioning component, pushes the movable plate. When the movable plate moves to the L-shaped connecting plate, it continues to move, and the lower end of the movable plate moves against the arc surface, causing the L-shaped connecting plate to rotate downward around the connecting axis inside the fixed plate. When the movable plate moves past the arc surface, the L-shaped connecting plate returns to its original position under the action of the torsion spring. When the manual directional valve is not needed, the L-shaped connecting plate is pressed down to disengage it from the movable plate. The spring column extends, causing the movable plate to return to its original position, so that the through hole is locked at the front knob of the manual directional valve, and the second groove is locked at the limit block. This design facilitates manual operation of the manual directional valve. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the hydraulic pump system of this utility model;

[0020] Figure 3 For the present utility model Figure 1 Enlarged view of point A in the middle;

[0021] Figure 4 For the present utility model Figure 2 Enlarged view at point B in the middle;

[0022] Figure 5 This is a schematic diagram of the positioning component structure of this utility model.

[0023] The attached diagram lists the components represented by each number as follows:

[0024] 10. Intelligent electrical control box; 11. Spiral swing arm; 12. Hydraulic pump system; 13. Manual directional valve; 14. Manual pump control lever; 20. First groove; 21. Spring column; 22. Movable plate; 23. Through hole; 24. Second groove; 25. Limit block; 30. Fixing plate; 31. Connecting shaft; 32. Torsion spring; 33. L-shaped connecting plate; 34. Arc-shaped surface. Detailed Implementation

[0025] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0026] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0028] Please see Figure 1-4 As shown, this embodiment is an adjustable slow-closing electro-hydraulic actuator, comprising:

[0029] An electro-hydraulic actuator includes a hydraulic pump system 12, a manual directional valve 13, and a manual pump control lever 14. The manual directional valve 13 is rotatably connected to one end of the hydraulic pump system 12, and the manual pump control lever 14 is fixed to the other end of the hydraulic pump system 12.

[0030] The electro-hydraulic actuator also includes an intelligent electrical control box 10 and a helical swing arm 11. The intelligent electrical control box 10 is fixed to the side of the helical swing arm 11 by bolts, and the hydraulic pump system 12 is fixed to the other side of the helical swing arm 11 by bolts.

[0031] The intelligent electrical control box 10, as the control center of the actuator, receives signals from the control system and adjusts the actuator's actions accordingly. The helical swing rod 11 converts the control signals from the electrical control box into mechanical motion, driving the valve to open and close by rotating or swinging. The hydraulic pump system 12 provides the necessary power source, driving the actuator's moving parts by changing the pressure of the liquid, thus achieving precise control of the valve. The manual directional valve 13 can manually open and close the valve, and the manual pump control lever 14 can manually control the hydraulic pump system 12.

[0032] The limiting assembly includes a spring post 21, a movable plate 22, a through hole 23, a second groove 24, and a limiting block 25. One end of the spring post 21 is fixed to the side of the hydraulic pump system 12 and is located on the side of the manual directional valve 13. The movable plate 22 is fixed to the other end of the spring post 21. The through hole 23 is opened in the middle of the movable plate 22. The second groove 24 is opened on the inner side of the through hole 23. The limiting block 25 is fixed to the side of the manual directional valve 13.

[0033] The limiting component also includes a first groove 20, which is formed on the side of the hydraulic pump system 12, and one end of the spring column 21 is inserted into and fixed in the first groove 20.

[0034] The end of the manual directional valve 13 away from the hydraulic pump system 12 is inserted into the through hole 23, and the limit block 25 is inserted into the second groove 24;

[0035] The first groove 20 serves to store and connect, the spring column 21 allows for positional changes, the movable plate 22 provides support, the through hole 23 and the second groove 24 serve to limit movement, and the limiting block 25 also serves to limit movement.

[0036] Working principle:

[0037] When it is necessary to rotate the manual directional valve 13, push the movable plate 22 by hand, which will cause the spring column 21 in the first groove 20 to be compressed, so that the through hole 23 in the movable plate 22 is disengaged from the knob at the front end of the manual directional valve 13, and the second groove 24 is disengaged from the limit block 25. Then rotate the knob at the front end of the manual directional valve 13 to switch between opening and closing valve functions.

[0038] This step prevents misoperation when the manual directional valve 13 is not needed.

[0039] Please see Figure 4-5 This embodiment, based on the above embodiments, further includes:

[0040] The positioning assembly includes a fixed plate 30, a connecting shaft 31, a torsion spring 32, and an L-shaped connecting plate 33. The fixed plate 30 is fixed to the lower side surface of the hydraulic pump system 12. The connecting shaft 31 is fixed between the two fixed plates 30. The L-shaped connecting plate 33 is sleeved on the upper section of the connecting shaft 31. The torsion spring 32 is sleeved on both ends of the connecting shaft 31, with one end fixed on the L-shaped connecting plate 33 and the other end fixed on the fixed plate 30.

[0041] The positioning component also includes an arc-shaped surface 34, which is formed at one end of the L-shaped connecting plate 33, and the movable plate 22 is movably connected to the arc-shaped surface 34.

[0042] The fixed plate 30 provides support, the connecting shaft 31 provides connection, the torsion spring 32 has a reset function, the L-shaped connecting plate 33 provides connection and positioning, and the arc-shaped surface 34 facilitates the movement of the movable plate 22.

[0043] Working principle:

[0044] Push the movable plate 22. When the movable plate 22 moves to the L-shaped connecting plate 33, continue to move the movable plate 22. The lower end of the movable plate 22 moves against the arc surface 34, causing the L-shaped connecting plate 33 to rotate downward around the connecting shaft 31 inside the fixed plate 30. When the movable plate 22 moves past the arc surface 34, the L-shaped connecting plate 33 returns to its original position under the action of the torsion spring 32. When the manual reversing valve 13 is not needed, press down on the arc surface 34 on the L-shaped connecting plate 33 to disengage it from the movable plate 22. The spring column 21 extends, causing the movable plate 22 to return to its original position, so that the through hole 23 is locked at the front knob of the manual reversing valve 13, and the second groove 24 is locked at the limit block 25.

[0045] This step facilitates manual operation of the directional valve 13.

[0046] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0047] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An adjustable slow-closing electro-hydraulic actuator, characterized in that, include: An electro-hydraulic actuator, comprising a hydraulic pump system (12), a manual directional valve (13), and a manual pump control lever (14), wherein the manual directional valve (13) is rotatably connected to one side of the hydraulic pump system (12), and the manual pump control lever (14) is fixed to the other side of the hydraulic pump system (12); The limiting assembly includes a spring post (21), a movable plate (22), a through hole (23), a second groove (24), and a limiting block (25). One end of the spring post (21) is fixed to the side of the hydraulic pump system (12) and located on the side of the manual directional valve (13). The movable plate (22) is fixed to the other end of the spring post (21). The through hole (23) is opened in the middle of the movable plate (22). The second groove (24) is opened on the inner side of the through hole (23). The limiting block (25) is fixed on the side of the manual directional valve (13).

2. The adjustable slow-closing electro-hydraulic actuator according to claim 1, characterized in that, The limiting component also includes a first groove (20), which is opened on the side of the hydraulic pump system (12), and one end of the spring column (21) is inserted into and fixed in the first groove (20).

3. The adjustable slow-closing electro-hydraulic actuator according to claim 1, characterized in that, The end of the manual directional valve (13) away from the hydraulic pump system (12) is inserted into the through hole (23), and the limiting block (25) is inserted into the second groove (24).

4. The adjustable slow-closing electro-hydraulic actuator according to claim 1, characterized in that, The electro-hydraulic actuator also includes an intelligent electrical control box (10) and a helical swing rod (11). The intelligent electrical control box (10) is fixed to the side of the helical swing rod (11) by bolts, and the hydraulic pump system (12) is fixed to the other side of the helical swing rod (11) by bolts.

5. The adjustable slow-closing electro-hydraulic actuator according to claim 1, characterized in that, It also includes a positioning component, which includes a fixing plate (30), a connecting shaft (31), a torsion spring (32) and an L-shaped connecting plate (33). The fixing plate (30) is fixed on the lower side surface of the hydraulic pump system (12), the connecting shaft (31) is fixed between the two fixing plates (30), the L-shaped connecting plate (33) is sleeved on the upper section of the connecting shaft (31), and the torsion spring (32) is sleeved on both ends of the connecting shaft (31), with one end fixed on the L-shaped connecting plate (33) and the other end fixed on the fixing plate (30).

6. An adjustable slow-closing electro-hydraulic actuator according to claim 5, characterized in that, The positioning component also includes an arc-shaped surface (34), which is located at one end of the L-shaped connecting plate (33), and the movable plate (22) is movably connected to the arc-shaped surface (34).

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