Parallel double-guide hydraulic actuating mechanism

Abstract

The utility model relates to the technical field of hydraulic actuating mechanisms, in particular to a parallel double-guide hydraulic actuating mechanism which comprises a manual pump module, one side of the manual pump module is connected with an oil tank through a pipeline, the other side of the manual pump module is connected with an energy accumulator through a pipeline, one side of the energy accumulator is connected with a hydraulic module through a pipeline, and the hydraulic module is connected with an oil tank through a pipeline. An oil cylinder is installed below the hydraulic module through screws, a shifting fork box body is installed on one side of the oil cylinder through screws, the improved hydraulic actuating mechanism has two modes of remote control and manual operation, and in the remote control mode, through specific valve switching and electromagnetic valve power-on operation, the manual operation can be achieved, and the manual operation can be achieved. Automatic opening and closing of the valve can be conveniently achieved through an external hydraulic power source, the valve can be automatically closed only by disconnecting a power source of the electromagnetic valve, operation is efficient, the energy accumulator is arranged, and although pressure at a connector of the energy accumulator fluctuates due to environment temperature changes, pressure can be supplemented through regular detection and a manual pump.

Description

TECHNICAL FIELD

[0001] The utility model relates to liquid drive actuator technical field, concretely is parallel double guide liquid drive actuator. BACKGROUND

[0002] The output driving force of the liquid drive actuator is higher than that of pneumatic actuator and electric actuator, and the output torque of the liquid drive actuator can be accurately adjusted according to requirements and reacted through hydraulic instrument, the transmission of the liquid drive actuator is more stable and reliable, has the phenomenon of buffering and no impact, is applicable to the working environment with higher transmission requirements, the liquid drive actuator has high adjustment accuracy and fast response speed, and can realize high-precision control.

[0003] The inventor finds the following problems in the prior art in the process of implementing the utility model: 1. In large chemical plants, many valves are distributed in different areas, and manual operation of the valves on site is needed without remote control function, which increases labor cost and operation risk, and the traditional one also lacks emergency operation function, when emergency situations such as power failure or hydraulic power source failure occur, it is impossible to control the pipeline system in an emergency, for example, in the case of fire, the material conveying pipeline cannot be timely cut off or opened, which will cause more serious consequences; 2. The traditional liquid drive actuator lacks accumulator pressure regulation function, when the ambient temperature changes, without accumulator or convenient accumulator pressure compensation, the hydraulic system pressure will be unstable, for example, in outdoor water conservancy facilities, the temperature changes greatly, if the pressure cannot be adjusted, the valve actuator will deviate, affecting the normal operation of the system. UTILITY MODEL CONTENTS

[0004] The utility model discloses a parallel double guide liquid drive actuator, which solves the problem of lack of emergency operation function in the prior art, and can control the pipeline system in an emergency when power failure or hydraulic power source failure occurs.

[0005] The utility model discloses a parallel double guide liquid drive actuator, which solves the problem of lack of emergency operation function in the prior art, and can control the pipeline system in an emergency when power failure or hydraulic power source failure occurs.

[0006] Further preferably, the capacity of the accumulator is 6.3L, and one side of the accumulator is connected with a throttle valve through a pipeline, and the two ends of the throttle valve are connected with a backflow alarm and a needle valve.

[0007] Further preferably, the upper side of the backflow alarm is connected with a needle valve and a two-way ball valve, and the backflow alarm, the oil tank and the yoke box are connected with a hand pump module and two one-way valves through pipelines.

[0008] Further preferably, the working pressure of the hydraulic module is 1.5, the maximum pressure of the oil cylinder is 0.6MPa, the maximum distance of the piston is 70mm, the hydraulic module is connected with a hydraulic control valve through a cable, the hydraulic control valve is connected with an oil return port, and the hydraulic module is connected with a buffer tank, a pressure relief valve, a solenoid valve and a three-way ball valve.

[0009] Further preferably, the other side of the yoke box is provided with an oil tank through a screw, and the oil tank is 2L.

[0010] Further preferably, the maximum pressure of the hand pump module is 1.5MPa, and the two sides of the hand pump module are horizontally provided with a first valve and a second valve, and the left is opened and the right is closed, and the first valve and the second valve are both needle valves.

[0011] Further preferably, the rear of the hand pump module is provided with an overflow valve, and the left of the hand pump module is reset and the right is automatically opened.

[0012] Compared with the prior art, the utility model has the advantages of:

[0013] In the utility model, the staff can close the hand-operated / automatic valve according to the hand-operated steps, insert the hand pump handle and press repeatedly to open or close the valve, cut off or open the material conveying pipeline in time, avoid the further deterioration of the accident, and effectively guarantee the operability and safety of the chemical production system in the emergency.

[0014] In the utility model, the accumulator pressure compensation operation is that the hand-operated / automatic valve is closed, the needle valve (left) is closed, the needle valve (right) is opened, and then the hand pump is pressed up and down to compensate the pressure of the accumulator, so that the pressure stability of the hydraulic system can be effectively maintained. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a top view structure schematic diagram of the utility model;

[0016] Figure 2 It is a front view structure schematic diagram of the utility model;

[0017] Figure 3 It is rear view structure schematic diagram of the utility model;

[0018] Figure 4 It is one side structure schematic diagram of the utility model manual pump module.

[0019] In the drawing: 1, manual pump module;101, first valve;102, second valve;103, manual valve;2, back signal device;3, energy accumulator;4, hydraulic module;5, oil cylinder;6, oil tank;7, pull fork box. Specific embodiments

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0021] Please refer to Figures 1 to 4 The utility model provides a technical scheme: parallel double-guiding hydraulic actuator, including manual pump module 1, one side of manual pump module 1 is connected with oil tank 6 through pipeline, the other side of manual pump module 1 is connected with energy accumulator 3 through pipeline, one side of energy accumulator 3 is connected with hydraulic module 4 through pipeline, the lower of hydraulic module 4 is installed with oil cylinder 5 through screw, one side of oil cylinder 5 is installed with pull fork box 7 through screw, the upper of pull fork box 7 is installed with back signal device 2 through screw;

[0022] The two sides of manual pump module 1 are respectively installed with first valve 101 and second valve 102, and the upper of manual pump module 1 is installed with manual valve 103 through screw.

[0023] In the embodiment, as shown in Figure 1 、 Figure 2 and Figure 3 , the capacity of energy accumulator 3 is 6.3L, and one side of energy accumulator 3 is connected with throttle valve through pipeline, and the two ends of throttle valve are connected with back signal device 2 and needle valve.

[0024] In the embodiment, as shown in Figure 1 、 Figure 2 and Figure 3 , the upper of back signal device 2 is connected with needle valve and two-way ball valve, and back signal device 2, oil tank 6 and pull fork box 7 are connected with manual pump module 1 and two check valves through pipeline.

[0025] In the embodiment, as shown in Figure 1 、 Figure 2 and Figure 3As shown in the figure, the working pressure of the hydraulic module 4 is 1.5, the maximum pressure of the oil cylinder 5 is 0.6 MPa, the maximum distance of the piston is 70 mm, the hydraulic module 4 is connected with the hydraulic control valve through a cable, the hydraulic control valve is connected with the oil return port, and the hydraulic module 4 is provided with a buffer tank, a pressure relief valve, an electromagnetic valve and a three-way ball valve.

[0026] In the embodiment, as shown in the figures, Figure 1 , Figure 2 and Figure 3 , the other side of the fork box body 7 is provided with an oil tank 6 through screws, and the oil tank 6 is 2L.

[0027] In the embodiment, as shown in the figures, Figure 1 , Figure 2 and Figure 3 , the maximum pressure of the manual pump module 1 is 1.5 MPa, and the first valve 101 and the second valve 102 are horizontally arranged on the two sides of the manual pump module 1, and the left is opened and the right is closed.

[0028] In the embodiment, as shown in the figures, Figure 1 and Figure 3 , the overflow valve is arranged at the back of the manual pump module 1, and the left side of the manual pump module 1 is reset and the right side is automatically opened.

[0029] The use method and advantages of the parallel double-guiding hydraulic actuator are as follows:

[0030] As shown in the figures, Figure 4 , Figure 1 , Figure 3 and Figure 1 Figure 2 Figure 3 Figure 4 , first, when the valve needs to be opened in the remote control mode, the reset manual valve is in the automatic position, the hydraulic manual switch valve is opened, the first valve 101 and the second valve 102 are adjusted to be opened on the left and closed on the right, after completing these preparations, in the remote control mode, the electromagnetic valve is continuously powered, the voltage is 24VDC, 12W, then the reset valve is manually switched to the reset position, and then it is switched to automatic again, at this time, the valve is automatically opened under the action of the external hydraulic power source, and when the valve needs to be closed, only the electromagnetic valve power is disconnected, the remote hydraulic power source is cut off, the hydraulic module 4 and the oil cylinder 5 of the actuator return to the remote hydraulic system through the oil return pipe, and the valve is automatically closed, it should be noted that the electromagnetic valve needs to be reset once after each power-on.

[0031] Hydraulic hand operation has its specific conditions, only in the absence of hydraulic power source and solenoid valve without power, if you want to open the manual valve 103, first close the manual / automatic valve, then put the handle into the hole of the manual pump module 1, press the handle repeatedly, the valve can be slowly opened, until the valve is fully open to the right place, and special attention, the manual valve 103 must be removed, put back in place, if you want to close the valve, in the absence of hydraulic power source and solenoid valve without power, open the manual / automatic valve, the valve is automatically closed;

[0032] In addition, due to the alternation of day and night and season, the change of environmental temperature will make the pressure of accumulator 3 interface have reasonable fluctuation, so the valve will need the user to detect the pressure value change of the pressure gauge regularly, when the accumulator 3 needs to be pressure compensated, the manual / automatic valve is closed in the remote control mode position, the needle valve (left) is closed and the needle valve (right) is opened, then the accumulator 3 is pressure compensated by pressing the manual pump up and down, the oil level of the oil tank 6 is observed to the safe position, and the operation is ended.

[0033] The basic principle, main features and advantages of the present application are shown and described above. The skilled person in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only preferred examples of the present application and do not limit the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. Parallel double-guiding hydraulic actuator, comprising a manual pump module (1), characterized in that: One side of the manual pump module (1) is connected with an oil tank (6) through a pipeline, the other side of the manual pump module (1) is connected with an accumulator (3) through a pipeline, one side of the accumulator (3) is connected with a hydraulic module (4) through a pipeline, the lower part of the hydraulic module (4) is installed with an oil cylinder (5) through a screw, one side of the oil cylinder (5) is installed with a pull fork box (7) through a screw, the upper part of the pull fork box (7) is installed with a return device (2) through a screw. Both sides of the manual pump module (1) are respectively installed with a first valve (101) and a second valve (102), the upper part of the manual pump module (1) is installed with a manual valve (103) through a screw.

2. The parallel twin guide hydrodynamic actuator according to claim 1, characterized in that The capacity of the accumulator (3) is 6.3L, one side of the accumulator (3) is connected with a throttle valve through a pipeline, both ends of the throttle valve are connected with the return device (2) and the needle valve.

3. The parallel twin guide hydrodynamic actuator according to claim 1, characterized in that: The upper part of the return device (2) is connected with the needle valve and the two-way ball valve, and the return device (2), the oil tank (6) and the pull fork box (7) are connected with the manual pump module (1) and two one-way valves through pipelines.

4. The parallel twin guide hydrodynamic actuator according to claim 1, characterized in that: The working pressure of the hydraulic module (4) is 1.5, the maximum pressure of the oil cylinder (5) is 0.6MPa, the maximum distance of the piston is 70mm, the hydraulic module (4) and the hydraulic control valve are connected through a cable, the hydraulic control valve is connected with the oil return port, and the hydraulic module (4) is connected with the buffer tank, the pressure relief valve, the electromagnetic valve and the three-way ball valve.

5. The parallel twin guide hydrodynamic actuator according to claim 1, characterized in that: The other side of the pull fork box (7) is installed with the oil tank (6) through a screw, and the oil tank (6) is 2L.

6. The parallel twin guide hydrodynamic actuator according to claim 1, characterized in that: The maximum pressure of the manual pump module (1) is 1.5MPa, both sides of the manual pump module (1) are horizontally provided with the first valve (101) and the second valve (102), and the left is opened and the right is closed, the first valve (101) and the second valve (102) are both needle valves.

7. The parallel twin guide hydrodynamic actuator according to claim 1, characterized in that: The rear of the manual pump module (1) is provided with an overflow valve, and the left of the manual pump module (1) is reset and the right is automatically opened.

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