Direct drive high-torque gas-liquid linkage actuator

Abstract

The application relates to the technical field of valve equipment, in particular to a direct-drive high-torque gas-liquid linkage actuator, which comprises a liquid pipe and a gas pipe, the outer circumferential surface of the liquid pipe is provided with a first connecting seat, a liquid pressure sensor is arranged on the side, away from the liquid pipe, of the first connecting seat, the detection end head of the liquid pressure sensor is located in the liquid pipe, a PLC controller is electrically connected to the end, away from the liquid pipe, of the liquid pressure sensor, a fixed base is vertically arranged on one side of the PLC controller, a second connecting seat is arranged between the fixed base and the liquid pressure sensor, an installation plate is arranged on the end, close to the PLC controller, of the fixed base, a servo motor is arranged on the top of the installation plate, the servo motor is electrically connected to the PLC controller, a stop ring is arranged on the inner wall of the end, close to the servo motor, of the gas pipe, and the center of the stop ring is a hollow structure. The application is not affected by the liquid pressure by cooperating the pressure applying assembly with the servo motor and the PLC controller, and the use convenience and driving efficiency are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of valve equipment, in particular to a direct drive type high-torque gas-liquid linkage actuator. BACKGROUND

[0002] The gas-liquid linkage actuator is a device installed on a gas pipeline for opening or closing the gas pipeline, which is mainly used for synchronously controlling the gas flow in the process of water flow, so as to control the gas flow and control the igniter to ignite the gas at the same time.

[0003] The traditional gas-liquid linkage actuator mainly relies on the pressure of liquid flow to deform the eardrum when in use, and then exerts pressure on the jack when the eardrum deforms to open and close the microswitch and the gas pipeline switch, but in actual use, we find that the mechanism still has some problems:

[0004] Firstly, when the water pressure is low, the pressure is insufficient to make the eardrum exert sufficient pressure on the jack, so the gas pipeline cannot be dredged, and secondly, the eardrum is a vulnerable part when in use, and the eardrum will be damaged after long-term use, so the damaged eardrum will cause pressure leakage when the water flows, thus still causing the water and gas to run out of coordination. SUMMARY

[0005] Therefore, the purpose of the present application is to provide a direct drive type high-torque gas-liquid linkage actuator to solve the problems of eardrum damage and water pressure deficiency leading to gas-liquid operation out of coordination.

[0006] Based on the above purpose, the present application provides a direct drive type high-torque gas-liquid linkage actuator.

[0007] The direct drive type high-torque gas-liquid linkage actuator comprises a liquid pipe and a gas pipe, the outer periphery of the liquid pipe is provided with a first connecting seat, the first connecting seat is provided with a liquid pressure sensor away from the liquid pipe, the detection end of the liquid pressure sensor is located in the liquid pipe, the liquid pressure sensor is electrically connected with a PLC controller away from the liquid pipe, a fixed base is vertically arranged on one side of the PLC controller, a second connecting seat is arranged between the fixed base and the liquid pressure sensor, an installation plate is arranged on the end of the fixed base close to the PLC controller, a servo motor is arranged on the top of the installation plate, the servo motor is electrically connected with the PLC controller, a stop ring is arranged on the inner wall of the gas pipe close to the servo motor, the center of the stop ring is a hollow structure, a blocking piece is arranged on the side of the stop ring away from the servo motor, the blocking piece abuts against the stop ring, and a pressure applying assembly is arranged on the side of the blocking piece close to the servo motor for controlling the clutching between the blocking piece and the stop ring.

[0008] Furthermore, the pressure application assembly includes a slide rod transversely positioned at the center of the blocking plate near the retaining ring. The slide rod slides through the center of the retaining ring, and the end of the slide rod near the servo motor extends to the outside of the trachea. The pressure application assembly also includes a lead screw coaxially positioned on the output shaft of the servo motor. A lead screw nut is fitted on the outer circumference of the lead screw, and a push rod is provided at the top of the lead screw nut. The top of the push rod abuts against the end of the slide rod extending to the outside of the trachea.

[0009] Furthermore, a slide block is vertically provided at the bottom of the lead screw nut, and a slide rail is slidably inserted into the bottom of the slide block, and the slide rail is fixed to the top of the mounting plate.

[0010] Furthermore, a stop bar is provided laterally on one side of the lead screw nut, and a micro switch is provided on the top of the stop bar. A pressure plate is hinged to the top of the micro switch near the stop bar. A switch pressure head is provided on one side between the micro switch and the pressure plate. The switch pressure head is used to control the on / off state of the micro switch circuit. The upper side of the pressure plate slides against the stop bar. A torsion spring is sleeved at the hinge position between the pressure plate and the micro switch to control the automatic reset of the pressure plate.

[0011] Furthermore, a compression spring is provided on the side of the blocking plate away from the retaining ring.

[0012] Furthermore, a sealing ring is fitted at the connection position between the liquid pressure sensor and the first connecting seat, and the sealing ring is fixed to the first connecting seat by bolts.

[0013] Furthermore, a branch pipe is provided at the top of the trachea, which is connected to the inside of the trachea, and the air inlet end of the branch pipe is located at the top between the retaining ring and the slide rod.

[0014] Furthermore, a valve for controlling the flow of liquid is provided at either end of the liquid pipe.

[0015] Furthermore, the specific model of the micro switch is KW4A-Z6SF150, and the specific model of the liquid pressure sensor is SD-802Y.

[0016] The beneficial effects of this invention are:

[0017] 1. This invention, through the use of a pressure-applying component in conjunction with a servo motor and a PLC controller, can precisely control the flow of gas inside the air pipe, achieving accurate control of the gas and liquid. It also enables direct control of the gas supply flow, unaffected by the liquid pressure, greatly improving ease of use and driving efficiency.

[0018] 2. By using a liquid pressure sensor and an LC controller, this invention can accurately and promptly transmit pressure signals to the servo motor, thereby greatly improving the effect of coordinated water and air operation. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present invention;

[0021] Figure 2 This is a three-dimensional structural diagram of an embodiment of the present invention;

[0022] Figure 3 This is a schematic diagram of the connection structure between the liquid pressure sensor and the liquid pipe according to an embodiment of the present invention;

[0023] Figure 4 This is a schematic diagram of the pressure application component structure according to an embodiment of the present invention;

[0024] Figure 5 This is a schematic diagram of the micro switch structure according to an embodiment of the present invention;

[0025] Figure 6 Embodiments of the present invention Figure 4 A magnified schematic diagram of the local structure at point A;

[0026] Figure 7 Embodiments of the present invention Figure 5 A magnified schematic diagram of the local structure at point B.

[0027] The diagram is marked as follows:

[0028] 1. Liquid pipe; 2. Gas pipe; 3. First connecting seat; 4. Sealing ring; 5. Liquid pressure sensor; 6. Second connecting seat; 7. Fixed base; 8. PLC controller; 9. Branch pipe; 10. Mounting plate; 11. Servo motor; 12. Lead screw; 13. Lead screw nut; 14. Slide seat; 15. Slide rail; 16. Top rod; 17. Slide rod; 18. Blocking plate; 19. Retaining ring; 20. Compression spring; 21. Stop bar; 22. Pressure plate; 23. Micro switch; 24. Switch head. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments.

[0030] like Figures 1-7As shown, the direct-drive high-torque pneumatic-hydraulic linkage actuator includes a liquid pipe 1 and an air pipe 2. A first connecting seat 3 is provided on the outer circumference of the liquid pipe 1. A liquid pressure sensor 5 is provided on the side of the first connecting seat 3 away from the liquid pipe 1. The detection end of the liquid pressure sensor 5 is located inside the liquid pipe 1. The end of the liquid pressure sensor 5 away from the liquid pipe 1 is electrically connected to a PLC controller 8. A fixed base 7 is provided vertically on one side of the PLC controller 8. A second connecting seat 6 is provided between the fixed base 7 and the liquid pressure sensor 5. A mounting plate 10 is provided on the side of the fixed base 7 near the PLC controller 8. A servo motor 11 is provided on the top of the mounting plate 10. The servo motor 11 is electrically connected to the PLC controller 8. A retaining ring 19 is provided on the inner wall of the end of the air pipe 2 near the servo motor 11. The center of the retaining ring 19 is hollow. A blocking plate 18 is provided on the side of the retaining ring 19 away from the servo motor 11. The blocking plate 18 abuts against the retaining ring 19. A pressure application component for controlling the engagement and disengagement between the blocking plate 18 and the retaining ring 19 is provided on the side of the blocking plate 18 near the servo motor 11.

[0031] In a specific embodiment, the pressure application component includes a slide rod 17 laterally positioned at the center of the blocking plate 18 near the retaining ring 19. The slide rod 17 slides through the center of the retaining ring 19, and one end of the slide rod 17 near the servo motor 11 extends to the outside of the air tube 2. The pressure application component also includes a lead screw 12 coaxially mounted on the output shaft of the servo motor 11. A lead screw nut 13 is sleeved on the outer circumference of the lead screw 12. A top rod 16 is provided at the top of the lead screw nut 13, and the top of the top rod 16 abuts against the end of the slide rod 17 extending to the outside of the air tube 2. A slide seat 14 is vertically provided at the bottom of the lead screw nut 13, and a slide rail 15 is laterally slidably inserted into the bottom of the slide seat 14. The slide rail 15 is fixed to the top of the mounting plate 10. A stop rod 21 is laterally provided on one side of the lead screw nut 13, and a micro switch 23 is provided at the top of the stop rod 21. A pressure plate 22 is hinged to the top of the micro switch 23 near the stop rod 21. The micro switch 23 and the pressure plate 22 are connected to each other. A switch head 24 is provided on one side at the position between the opposing surfaces. The switch head 24 is used to control the on and off of the circuit of the micro switch 23. The upper part of the pressure plate 22 slides against the stop rod 21. A torsion spring for controlling the automatic reset of the pressure plate 22 is sleeved at the hinge position of the pressure plate 22 and the micro switch 23. A compression spring 20 is provided on the side of the blocking plate 18 away from the retaining ring 19. A sealing ring 4 is sleeved at the connection position between the liquid pressure sensor 5 and the first connecting seat 3. The sealing ring 4 is fixed to the first connecting seat 3 by bolts. A branch pipe 9 is provided at the top of the air pipe 2. The branch pipe 9 is connected to the inside of the air pipe 2. The air inlet end of the branch pipe 9 is located at the top between the retaining ring 19 and the slide rod 17. A valve for controlling the flow of liquid is provided at either end of the liquid pipe 1. The specific model of the micro switch 23 is KW4A-Z6SF150, and the specific model of the liquid pressure sensor 5 is SD-802Y.

[0032] Working principle: During use, liquid flows through liquid pipe 1, liquid pressure sensor 5 detects liquid pressure, PLC controller 8 receives pressure data from liquid pressure sensor 5 and controls servo motor 11 to work. Servo motor 11 drives lead screw 12 to rotate. When lead screw 12 rotates, it drives push rod 16 to slide under the cooperation of lead screw nut 13, slide block 14 and slide rail 15. When push rod 16 slides, it applies pressure to slide rod 17. The slide rod 17 is pressured and drives blocking plate 18 to slide. At this time, a gap is generated between blocking plate 18 and retaining ring 19. Gas in gas pipe 2 flows through the hole in the center of retaining ring 19 and enters the interior of branch pipe 9. When lead screw nut 13 moves, it drives retaining rod 21 to move synchronously. When retaining rod 21 moves, it applies a pushing force to the top of pressure plate 22 connected to micro switch 23. The top of pressure plate 22 is pushed, causing the bottom to separate from switch head 24. At this time, micro switch 23 forms a passage under the action of switch head 24, thereby enabling igniter to work and ignite the gas flowing out of branch pipe 9.

[0033] This invention is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A direct-drive high-torque pneumatic-hydraulic linkage actuator, comprising a liquid pipe (1) and a pneumatic pipe (2), characterized in that, The outer circumferential surface of the liquid pipe (1) is provided with a first connecting seat (3). A liquid pressure sensor (5) is provided on the side of the first connecting seat (3) away from the liquid pipe (1). The detection end of the liquid pressure sensor (5) is located inside the liquid pipe (1). The end of the liquid pressure sensor (5) away from the liquid pipe (1) is electrically connected to a PLC controller (8). A fixed base (7) is provided vertically on one side of the PLC controller (8). The fixed base (7) and the liquid pressure sensor (5) are provided with the same second connecting seat (6). The fixed base (7) is provided with a mounting bracket near the PLC controller (8). Mounting plate (10), the top of the mounting plate (10) is provided with a servo motor (11), the servo motor (11) is electrically connected to the PLC controller (8), the inner wall of the air pipe (2) near the servo motor (11) is provided with a retaining ring (19), the center of the retaining ring (19) is hollow, the side of the retaining ring (19) away from the servo motor (11) is provided with a blocking piece (18), the blocking piece (18) abuts against the retaining ring (19), the side of the blocking piece (18) near the servo motor (11) is provided with a pressure application component for controlling the engagement and disengagement between the blocking piece (18) and the retaining ring (19); The pressure application assembly includes a slide rod (17) laterally positioned at the center of the blocking plate (18) near the retaining ring (19). The slide rod (17) slides through the center of the retaining ring (19). The end of the slide rod (17) near the servo motor (11) extends to the outside of the air tube (2). The pressure application assembly also includes a lead screw (12) coaxially positioned on the output shaft of the servo motor (11). A lead screw nut (13) is sleeved on the outer circumference of the lead screw (12). A top rod (16) is provided at the top of the lead screw nut (13). The top of the top rod (16) abuts against the end of the slide rod (17) extending to the outside of the air tube (2). The bottom of the lead screw nut (13) is provided with a vertical slide block (14), and the bottom of the slide block (14) is provided with a horizontal sliding rail (15), which is fixed to the top of the mounting plate (10); A stop bar (21) is provided on one side of the lead screw nut (13). A micro switch (23) is provided on the top of the stop bar (21). A pressure plate (22) is hinged to the top of the micro switch (23) near the stop bar (21). A switch head (24) is provided on one side between the micro switch (23) and the pressure plate (22). The switch head (24) is used to control the on / off state of the micro switch (23) circuit. The upper part of the pressure plate (22) slides against the stop bar (21). A torsion spring is sleeved at the hinge position between the pressure plate (22) and the micro switch (23) to control the automatic reset of the pressure plate (22).

2. The direct-drive high-torque pneumatic-hydraulic linkage actuator according to claim 1, characterized in that, A compression spring (20) is provided on the side of the blocking plate (18) away from the retaining ring (19).

3. The direct-drive high-torque pneumatic-hydraulic linkage actuator according to claim 2, characterized in that, A sealing ring (4) is fitted at the connection position between the liquid pressure sensor (5) and the first connecting seat (3), and the sealing ring (4) is fixed to the first connecting seat (3) by bolts.

4. The direct-drive high-torque pneumatic-hydraulic linkage actuator according to claim 3, characterized in that, The top of the trachea (2) is provided with a branch pipe (9), which is connected to the inside of the trachea (2). The bottom air inlet of the branch pipe (9) is located at the top between the retaining ring (19) and the slide rod (17).

5. The direct-drive high-torque pneumatic-hydraulic linkage actuator according to claim 4, characterized in that, The liquid pipe (1) is equipped with a valve at either end for controlling the flow of liquid.

6. The direct-drive high-torque pneumatic-hydraulic linkage actuator according to claim 5, characterized in that, The specific model of the micro switch (23) is KW4A-Z6SF150, and the specific model of the liquid pressure sensor (5) is SD-802Y.

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