CN210867365U

CN210867365U - Explosion-proof electric actuator

Info

Publication number: CN210867365U
Application number: CN201921861833.1U
Authority: CN
Inventors: 朱晨曦
Original assignee: Tianjin Baird Valve Co ltd
Current assignee: Tianjin Baird Valve Co ltd
Priority date: 2019-11-01
Filing date: 2019-11-01
Publication date: 2020-06-26
Anticipated expiration: 2029-11-01

Abstract

The utility model discloses an explosion-proof type electric actuator, including the electric actuator body, a plurality of mounting hole has been seted up from top to bottom in proper order to terminal surface, rear end face before the bottom face of electric actuator body, the equal vertical welding of bottom face of electric actuator body connection disc and connection disc has the fixed plate around the top face, and the top face of fixed plate has been from last to having seted up a plurality of mounting hole down in proper order simultaneously, the round hole has been seted up at the middle part of connecting the disc, the round hole is seted up at the bottom face middle part of electric actuator body, and the screw thread has all been seted up to the inner wall of round hole simultaneously, top face, the bottom face outer wall that are equipped with connecting pipe and connecting pipe between. The utility model has the advantages of simple structure and reasonable design, not only can prevent that electric actuator from taking place to damage at the too big and emergence of in-process internal pressure that uses to improve electric actuator's life, the result of use is still very good moreover.

Description

Explosion-proof electric actuator

Technical Field

The utility model relates to an electric actuator technical field specifically is an explosion-proof type electric actuator.

Background

The electric actuator is an instrument applied to various industrial automation process control links. The electric actuator has the characteristics of safety guarantee, protection device, multiple speeds, corrosion resistance, rust resistance, intelligent numerical control and the like; the motion mode is divided into: an angular stroke and a straight stroke (wherein the angular stroke is divided into a multi-revolution and a partial revolution, and the straight stroke is generally a push-pull structure);

the conventional apparatus has the following disadvantages:

at present, most of electric actuators are likely to be damaged due to excessive internal pressure in the using process, and external combustible gas is easy to enter the inside of the electric actuator, so that explosion occurs, and the use is very inconvenient, so that an explosion-proof electric actuator is needed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an explosion-proof type electric actuator to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the electric actuator comprises an electric actuator body, wherein a plurality of mounting holes are sequentially formed in the front end face and the rear end face of the bottom end face of the electric actuator body from top to bottom, the bottom end face of the electric actuator body is connected with a disc, fixed plates are vertically welded on the front and the rear of the top end face of the connected disc, a plurality of mounting holes are sequentially formed in the top end face of each fixed plate from top to bottom, a round hole is formed in the middle of the connected disc, a round hole is formed in the middle of the bottom end face of the electric actuator body, threads are formed in the inner wall of the round hole, a connecting pipe is arranged between the inner sides of the fixed plates, the top end face and the outer wall of the bottom end face of the connecting pipe are provided with threads, the top end face and the bottom end face of the connecting pipe are respectively in threaded connection with, the center of connecting the disc is circular distribution simultaneously about the connecting hole, there is the motor on the right side of electric actuator body through bolt fixed mounting, the left side welding of electric actuator body has the connecting block, and the activity is equipped with manual adjustment handle on the connecting block simultaneously, the trailing flank fixed mounting of electric actuator body has the middle-end of fixed block and fixed block to set up threaded hole, and the screw hole communicates with each other with the inside of electric actuator body simultaneously, threaded connection has the pressure release pipe on the screw hole, and fixed mounting has the solenoid valve on the pressure release pipe simultaneously, the last electric connection of face fixed mounting of top of electric actuator body has the pressure-sensitive switch on controller and the controller, and pressure-sensitive switch fixed mounting is in the inside of electric actuator body simultaneously, the solenoid valve is.

Preferably, the housing of the electric actuator body is made of hard aluminum alloy, and a polyester powder coating is coated on the housing of the electric actuator body.

Preferably, limit switch, desicator, indicator, torque switch are equipped with in the electric actuator body.

Preferably, the outer wall of the electric actuator body is coated with a fireproof coating.

Preferably, the inner wall of the round hole and the inner wall of the threaded hole are both provided with sealing rings.

Compared with the prior art, the beneficial effects of the utility model are that:

1. when the pressure relief electric actuator is used, the pressure sensing switch is used for sensing, when the pressure inside the electric actuator body is overlarge, the pressure sensing switch starts the electromagnetic valve for pressure relief, so that the damage of the electric actuator caused by overlarge internal pressure in the using process can be prevented, and the service life of the electric actuator is prolonged; the shell of the electric actuator body is made of hard aluminum alloy, and meanwhile, the shell of the electric actuator body is coated with the polyester powder coating and the fireproof coating, so that the protection effect is better, and the use effect is very good;

2. the utility model discloses a set up round hole, connecting pipe, fixed plate, mounting hole, connection disc, connecting hole, screw hole, packing ring, sealing washer, not only can improve the leakproofness like this to prevent that outside combustible gas from entering into electric actuator's inside, and then increase electric actuator's application range, but also be convenient for install and dismantle, and can also come the position of erection joint disc, fixed plate according to the length of transmission shaft, the result of use is very good.

Drawings

Fig. 1 is a schematic view of a three-dimensional structure of an explosion-proof electric actuator of the present invention;

fig. 2 is a schematic view of a side-view connection structure of an explosion-proof electric actuator of the present invention;

fig. 3 is a schematic view of the bottom local connection structure of the explosion-proof electric actuator of the present invention.

In the figure: 1. a circular hole; 2. a fixing plate; 3. connecting blocks; 4. an electric actuator body; 5. an electric motor; 6. mounting holes; 7. connecting the disks; 8. a connecting pipe; 9. a fixed block; 10. a threaded hole; 11. a pressure relief pipe; 12. an electromagnetic valve; 13. a controller; 14. and (4) mounting the groove.

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. 1-3, the present invention provides a technical solution of an explosion-proof electric actuator: the electric actuator comprises an electric actuator body 4, a front end face and a rear end face of a bottom end face of the electric actuator body 4 are sequentially provided with a plurality of mounting holes 6 from top to bottom, a bottom end face of the electric actuator body 4 is connected with a disc 7, the front and the rear of the top end face of the disc 7 are vertically welded with a fixed plate 2, the top end face of the fixed plate 2 is sequentially provided with a plurality of mounting holes 6 from top to bottom, the middle part of the disc 7 is provided with a round hole 1, the middle part of the bottom end face of the electric actuator body 4 is provided with the round hole 1, the inner wall of the round hole 1 is provided with threads, a connecting pipe 8 is arranged between the inner sides of the fixed plate 2, the top end face and the outer wall of the bottom end face are provided with threads, the top end face and the bottom end face of the connecting pipe 8 are respectively in threaded connection with the round hole, meanwhile, the connecting holes are distributed in a circular shape about the center of the connecting disc 7, the motor 5 is fixedly mounted on the right side of the electric actuator body 4 through bolts, the connecting block 3 is welded on the left side face of the electric actuator body 4, a manual adjusting handle is movably arranged on the connecting block 3, a fixed block 9 is fixedly mounted on the rear side face of the electric actuator body 4, a threaded hole 10 is formed in the middle end of the fixed block 9, the threaded hole 10 is communicated with the inside of the electric actuator body 4, a pressure relief pipe 11 is connected to the threaded hole 10 in a threaded mode, an electromagnetic valve 12 is fixedly mounted on the pressure relief pipe 11, a controller 13 is fixedly mounted on the top end face of the electric actuator body 4, and a pressure sensing switch is electrically connected to the controller 13 and is fixedly mounted inside the electric actuator body 4.

The shell of the electric actuator body 4 is made of hard aluminum alloy, and meanwhile, a polyester powder coating is coated on the shell of the electric actuator body 4.

The electric actuator body 4 is internally provided with a limit switch, a dryer, an indicator and a torque switch.

The outer wall of the electric actuator body 4 is coated with a fireproof coating.

And sealing rings are arranged on the inner wall of the round hole 1 and the inner wall of the threaded hole 10.

The working principle is as follows: when the utility model is used, the whole device is firstly arranged at a designated position, the fixed plate 2 and the connecting disc 7 are arranged on the bottom end surface of the electric actuator body 4, then the connecting pipe 8 with a proper height is selected according to requirements, the connecting pipe 8 is sleeved on the vertical transmission shaft of the electric actuator body 4, the connecting pipe 8 is in threaded connection with the round hole 1 of the connecting disc 7, the top end of the connecting pipe 8 is in threaded connection with the round hole 1 of the bottom end surface of the electric actuator body 4, then the connecting disc 7 is connected with the valve body by using a bolt, and the gasket is arranged in the mounting groove 14, so that when the electric actuator is used, the pressure sensing switch is used for sensing, when the pressure inside the electric actuator body 4 is overlarge, the pressure sensing switch starts the electromagnetic valve 12 for pressure relief, and the damage caused by overlarge internal pressure in the use process of the electric actuator body 4, thereby improving the service life of the electric actuator body 4 and having good use effect.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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 type electric actuator, includes electric actuator body (4), its characterized in that: the front end face and the rear end face of the bottom end face of the electric actuator body (4) are sequentially provided with a plurality of mounting holes (6) from top to bottom, the bottom end face of the electric actuator body (4) is connected with the disc (7), the front and the rear of the top end face of the disc (7) are vertically welded with the fixed plate (2), the top end face of the fixed plate (2) is sequentially provided with a plurality of mounting holes (6) from top to bottom, the middle part of the connected disc (7) is provided with the round hole (1), the middle part of the bottom end face of the electric actuator body (4) is provided with the round hole (1), the inner wall of the round hole (1) is provided with threads, a connecting pipe (8) is arranged between the inner sides of the fixed plate (2), the top end face and the outer wall of the connecting pipe (8) are provided with threads, and the top end face, the bottom end face of the connecting disc (7) is provided with a mounting groove (14), a gasket is arranged inside the mounting groove (14), a plurality of connecting holes are formed in the outer edge of the top end face of the connecting disc (7), the connecting holes are distributed in a circular shape relative to the center of the connecting disc (7), the right side of the electric actuator body (4) is fixedly provided with a motor (5) through bolts, the left side face of the electric actuator body (4) is welded with a connecting block (3), a manual adjusting handle is movably arranged on the connecting block (3), a fixing block (9) is fixedly arranged on the rear side face of the electric actuator body (4), the middle end of the fixing block (9) is provided with a threaded hole (10), the threaded hole (10) is communicated with the inside of the electric actuator body (4), and a pressure relief pipe (11) is connected to the threaded hole, meanwhile, an electromagnetic valve (12) is fixedly mounted on the pressure relief pipe (11), a controller (13) is fixedly mounted on the top end face of the electric actuator body (4), a pressure sensing switch is electrically connected to the controller (13), the pressure sensing switch is fixedly mounted inside the electric actuator body (4), and the electromagnetic valve (12) is electrically connected with the controller (13).

2. An explosion proof electric actuator as defined in claim 1, wherein: the shell of the electric actuator body (4) is made of hard aluminum alloy, and meanwhile, a polyester powder coating is coated on the shell of the electric actuator body (4).

3. An explosion proof electric actuator as defined in claim 1, wherein: and a limit switch, a dryer, an indicator and a torque switch are arranged in the electric actuator body (4).

4. An explosion proof electric actuator as defined in claim 1, wherein: the outer wall of the electric actuator body (4) is coated with a fireproof coating.

5. An explosion proof electric actuator as defined in claim 1, wherein: and sealing rings are arranged on the inner wall of the round hole (1) and the inner wall of the threaded hole (10).