CN213298990U

CN213298990U - Explosion-proof actuator device

Info

Publication number: CN213298990U
Application number: CN202022120346.9U
Authority: CN
Inventors: 董宏攀; 曹艳侠
Original assignee: Wenzhou Yuning Valve Co ltd
Current assignee: Wenzhou Yuning Valve Co ltd
Priority date: 2020-09-24
Filing date: 2020-09-24
Publication date: 2021-05-28
Anticipated expiration: 2030-09-24

Abstract

The utility model relates to an executor technical field just discloses an explosion-proof executor device, including the electric actuator main part, the bottom of electric actuator main part is provided with metal switching pedestal, and metal switching pedestal passes through bolted connection with the electric actuator main part. This explosion-proof executor device, the externally mounted of center pin has the coil rotor, and be provided with anodal magnetic path and negative pole magnetic path respectively in the both sides of coil rotor, after anodal magnetic path switch on, the coil rotor will carry out corotation, and under the corotation state, the valve of connecting with it can be closed, after negative pole magnetic path switch on, the coil rotor will carry out the reversal, under the reversal state, will trun into the open mode by the closed state with the valve, realize electronic executive operation through solenoid's mode, distinguish and traditional gear execution structure, solenoid structure is more rigorous, whole control process goes on under sealed environment, very big promotion explosion-proof performance.

Description

Explosion-proof actuator device

Technical Field

The utility model relates to an executor technical field specifically is an explosion-proof executor device.

Background

The actuator is an essential important component of an automatic control system. It is used to receive the control signal from the controller and change the size of the controlled medium to maintain the controlled variable at the required value or in certain range. The actuators can be classified into pneumatic, hydraulic and electric according to their energy forms. The pneumatic actuator uses compressed air as energy source, and features simple structure, reliable and stable action, large output thrust, convenient maintenance, fire and explosion prevention and low cost, so that it may be used widely in chemical, paper making, oil refining and other production processes. Even when using an electric gauge or computer control, the pneumatic actuator may still be used as long as the electrical signal is converted to a standard pneumatic signal of 20-100kPa via an electro-pneumatic transducer or an electro-pneumatic valve positioner. The electric actuator has the advantages of convenient energy source taking, rapid signal transmission, complex structure and poor explosion-proof performance. The hydraulic actuator is basically not used in the production processes of chemical engineering, oil refining and the like, and is characterized by very large output thrust.

The existing electric actuator has poor self explosion-proof performance, and most of electric actuators do not have the function of anti-theft, so that certain potential safety hazards exist when the electric actuator is applied to some special valves.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides an explosion-proof executor device possesses advantages such as explosion-proof and anti-theft, and it is relatively poor to have solved the explosion-proof performance of current electric actuator itself, and most of electric actuators do not have the anti-theft function moreover to lead to the problem that can have certain potential safety hazard when being applied to some special valves.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: an explosion-proof actuator device comprises an electric actuator main body, wherein the bottom of the electric actuator main body is provided with a metal adapter shaft bracket, the metal switching shaft bracket is connected with the electric actuator main body through a bolt, a transmission rod groove is arranged at the bottom of the metal switching shaft bracket, and the periphery of the transmission rod groove is provided with a fixed screw hole, both ends of the electric actuator main body are provided with signal control end boxes, the signal control end box is connected with the electric actuator main body through a screw, the top of the electric actuator main body is provided with a manual control lock box, the manual control lock box is connected with the main through screw of the electric actuator, the top of the manual control lock box is provided with a metal lock hole, a lock rod valve button is arranged above the metal lock hole, and the locking rod valve knob comprises a locking rod body and a knob end, and the locking rod body is connected with the metal locking hole in a combined mode.

Preferably, an execution control chamber is arranged inside the electric actuator body, a coil rotor is arranged inside the execution control chamber, a central shaft is arranged inside the coil rotor, and the central shaft is fixedly connected with the coil rotor.

Preferably, one side of the coil rotor is provided with a positive pole magnetic block, the other side of the coil rotor is provided with a negative pole magnetic block, and the positive pole magnetic block and the negative pole magnetic block are connected with the electric actuator body through the insulating transfer block.

Preferably, the positive magnetic block and the negative magnetic block are electrically connected with the signal control end box.

Preferably, the center shaft is rotatably connected with the electric actuator body through a bearing, a valve body connecting sleeve is arranged at the bottom of the center shaft, a fixed lock rod is arranged at the top of the center shaft, and the fixed lock rod and the valve body connecting sleeve are fixedly connected with the center shaft.

Preferably, a rectangular locking block is arranged at the top of the fixed locking rod, the fixed locking rod is fixedly connected with the rectangular locking block, and the rectangular locking block is connected with the locking rod body through a locking groove.

Compared with the prior art, the utility model provides an explosion-proof executor device possesses following beneficial effect:

1. this explosion-proof executor device, the externally mounted of center pin has the coil rotor, and be provided with anodal magnetic path and negative pole magnetic path respectively in the both sides of coil rotor, after anodal magnetic path switch on, the coil rotor will carry out corotation, and under the corotation state, the valve of connecting with it can be closed, after negative pole magnetic path switch on, the coil rotor will carry out the reversal, under the reversal state, will trun into the open mode by the closed state with the valve, realize electronic executive operation through solenoid's mode, distinguish and traditional gear execution structure, solenoid structure is more rigorous, whole control process goes on under sealed environment, very big promotion explosion-proof performance.

2. This explosion-proof executor device, fixed locking lever are located the metal lockhole under, by seal structure switching between the two, when needs manual control valve, can agree with locking lever valve button each other with fixed locking lever through inserting the metal lockhole to realize manual control, at this in-process, inside executive structure is in the outage state, avoids the staff to operate like this.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic view of the internal structure of the electric actuator body of the present invention;

FIG. 3 is a schematic view of the metal adapter bracket of the present invention;

fig. 4 is the structural schematic diagram of the rectangular locking block of the present invention.

Wherein: 1. an electric actuator body; 2. a signal control terminal box; 3. a metal adapter bracket; 4. a locking lever valve knob; 5. locking the rod body; 6. a knob end; 7. a manual control lock box; 8. a metal lock hole; 9. a drive rod slot; 10. fixing screw holes; 11. an execution control room; 12. a coil rotor; 13. a central shaft; 14. the valve body is connected with the external member; 15. a fixed lock bar; 16. a positive pole magnetic block; 17. a negative pole magnetic block; 18. an insulating transfer block; 19. and a rectangular locking block.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, an explosion-proof actuator device includes an electric actuator body 1, a metal transfer shaft bracket 3 is disposed at the bottom of the electric actuator body 1, the metal transfer shaft bracket 3 is connected with the electric actuator body 1 through a bolt, a transmission rod groove 9 is disposed at the bottom of the metal transfer shaft bracket 3, fixing screw holes 10 are disposed around the transmission rod groove 9, the metal transfer shaft bracket 3 is fixed to a transmission mechanism at the top of a valve in a butt joint manner, signal control end boxes 2 are disposed at both ends of the electric actuator body 1, the signal control end boxes 2 are connected with the electric actuator body 1 through screws for receiving control signals, a manual control lock box 7 is disposed at the top of the electric actuator body 1, the manual control lock box 7 is connected with a main through screw of the electric actuator, a metal lock hole 8 is disposed at the top of the manual control lock box 7, and a locking rod valve button 4 is arranged above the metal locking hole 8, the locking rod valve button 4 comprises a locking rod body 5 and a knob end 6, and the locking rod body 5 is connected with the metal locking hole 8 in a combined manner, so that manual control operation can be performed.

Furthermore, an execution control chamber 11 is provided inside the electric actuator body 1, a coil rotor 12 is provided inside the execution control chamber 11, a central shaft 13 is provided inside the coil rotor 12, and the central shaft 13 is fixedly connected with the coil rotor 12.

Further, one side of the coil rotor 12 is provided with an anode magnetic block 16, the other side of the coil rotor 12 is provided with a cathode magnetic block 17, the anode magnetic block 16 and the cathode magnetic block 17 are connected with the electric actuator main body 1 through an insulating transfer block 18, electric execution operation is realized in an electromagnetic coil mode, the difference is in a traditional gear execution structure, the electromagnetic coil structure is more rigorous, the whole control process is carried out in a sealed environment, and the explosion-proof performance is greatly improved.

Further, the positive pole magnetic block 16 and the negative pole magnetic block 17 are electrically connected with the signal control end box 2, when the positive pole magnetic block 16 is connected with a power supply, the coil rotor 12 can rotate forwards, a valve connected with the positive pole magnetic block is closed in the forward rotation state, when the negative pole magnetic block 17 is connected with the power supply, the coil rotor 12 can rotate backwards, and in the reverse rotation state, the valve can be changed from the closed state to the open state.

Further, the central shaft 13 is rotatably connected with the electric actuator body 1 through a bearing, a valve body connecting sleeve 14 is arranged at the bottom of the central shaft 13, the valve body connecting sleeve 14 can be connected with a transmission mechanism of the valve, a fixed lock rod 15 is arranged at the top of the central shaft 13, the fixed lock rod 15 and the valve body connecting sleeve 14 are fixedly connected with the central shaft 13, and the valve body connecting sleeve 14 and the fixed lock rod 15 can rotate together with the central shaft 13.

Further, the top of fixed locking lever 15 is provided with rectangle locking piece 19, and fixed locking lever 15 and rectangle locking piece 19 fixed connection, rectangle locking piece 19 passes through the locked groove with the locking body of rod 5 and is connected, fixed locking lever 15 is located the metal lockhole 8 under, switch over by seal structure between the two, when needs manual control valve, can agree with locking lever valve button 4 each other with fixed locking lever 15 through inserting metal lockhole 8, thereby realize manual control, at this in-process, inside executive structure is in the outage state, avoid the staff to operate like this.

When in use, the metal transfer shaft bracket 3 is fixedly butted with a transmission mechanism at the top of a valve, the transmission rod passes through the transmission rod groove 9 to be connected with a valve body connecting kit 14 at the bottom of a central shaft 13, a coil rotor 12 is arranged outside the central shaft 13, a positive pole magnetic block 16 and a negative pole magnetic block 17 are respectively arranged at two sides of the coil rotor 12, the positive pole magnetic block 16 and the negative pole magnetic block 17 are controlled by a signal control end box 2, the signal control end boxes 2 at two sides respectively correspond to the opening and closing operations of the valve, when the positive pole magnetic block 16 is connected with a power supply, the coil rotor 12 rotates forwards, the valve connected with the coil rotor 12 is closed in the forward rotation state, when the negative pole magnetic block 17 is connected with the power supply, the coil rotor 12 rotates backwards, and when the valve rotates from the closed state to the open state, when the central shaft 13 and the coil rotor 12 rotate, the valve body connecting sleeve 14 and the fixed lock rod 15 can rotate together with the central shaft 13, so that when the valve needs to be manually controlled, the lock rod valve knob 4 can be mutually matched with the fixed lock rod 15 by being inserted into the metal lock hole 8, manual control is achieved, and in the process, the internal execution structure is in a power-off state.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An explosion-proof actuator device, comprising an electric actuator body (1), characterized in that: the bottom of the electric actuator main body (1) is provided with a metal switching shaft bracket (3), the metal switching shaft bracket (3) is connected with the electric actuator main body (1) through bolts, the bottom of the metal switching shaft bracket (3) is provided with a transmission rod groove (9), the periphery of the transmission rod groove (9) is provided with a fixed screw hole (10), two ends of the electric actuator main body (1) are provided with signal control end boxes (2), the signal control end boxes (2) are connected with the electric actuator main body (1) through screws, the top of the electric actuator main body (1) is provided with a manual control lock box (7), the manual control lock box (7) is connected with the electric actuator main through screws, the top of the manual control lock box (7) is provided with a metal lock hole (8), and a lock rod valve button (4) is arranged above the metal lock hole (8), and the locking rod valve knob (4) comprises a locking rod body (5) and a knob end (6), and the locking rod body (5) is connected with the metal lock hole (8) in a combined manner.

2. An explosion proof actuator device as defined in claim 1 wherein: an execution control chamber (11) is arranged in the electric actuator body (1), a coil rotor (12) is arranged in the execution control chamber (11), a central shaft (13) is arranged in the coil rotor (12), and the central shaft (13) is fixedly connected with the coil rotor (12).

3. An explosion proof actuator device as defined in claim 2 wherein: one side of the coil rotor (12) is provided with a positive pole magnetic block (16), the other side of the coil rotor (12) is provided with a negative pole magnetic block (17), and the positive pole magnetic block (16) and the negative pole magnetic block (17) are connected with the electric actuator main body (1) through an insulating transfer block (18).

4. An explosion proof actuator device as defined in claim 3 wherein: the positive pole magnetic block (16) and the negative pole magnetic block (17) are electrically connected with the signal control end box (2).

5. An explosion proof actuator device as defined in claim 2 wherein: center pin (13) are connected through bearing rotation with electric actuator main part (1), the bottom of center pin (13) is provided with valve body and connects external member (14), and the top of center pin (13) is provided with fixed locking lever (15), fixed locking lever (15) and valve body are connected external member (14) and center pin (13) fixed connection.

6. An explosion proof actuator device as defined in claim 5 wherein: the top of the fixed lock rod (15) is provided with a rectangular lock block (19), the fixed lock rod (15) is fixedly connected with the rectangular lock block (19), and the rectangular lock block (19) is connected with the locking rod body (5) through a lock groove.