CN219888871U

CN219888871U - Explosion-proof electric actuator

Info

Publication number: CN219888871U
Application number: CN202321282050.4U
Authority: CN
Inventors: 董丽丽
Original assignee: Shanghai Biruite Valve Group Co ltd
Current assignee: Shanghai Biruite Valve Group Co ltd
Priority date: 2023-05-25
Filing date: 2023-05-25
Publication date: 2023-10-24
Anticipated expiration: 2033-05-25

Abstract

The utility model discloses an explosion-proof electric actuator which comprises a machine head, a motor and a gear box, wherein the machine head and the motor are respectively arranged at the top and one side of the gear box, a third guard rail is arranged at the outer side of the motor, a protective cover is arranged at the outer side of the machine head, limit baffles are arranged at the middle positions of the front side and the back side of the protective cover, a first guard rail is arranged at the outer side of the protective cover, a supporting frame is arranged at the bottom of the gear box, and a valve rod is arranged in the gear box. The machine head is provided with the protective cover, the front and rear surfaces of the protective cover are respectively provided with the limit baffle, the machine head can be reinforced and protected through the limit baffles, the outer side of the protective cover is provided with the first protective fences, the second protective fences are arranged among the first protective fences, so that the protective capability of the machine head can be improved, cold water can be stored in the protective cover, and the cold water can be split into the first protective fences, and can be split into the second protective fences through the first protective fences, so that the machine head can be subjected to heat absorption and cooling.

Description

Explosion-proof electric actuator

Technical Field

The utility model relates to the field of electric actuators, in particular to an explosion-proof 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, various speeds, corrosion resistance, rust resistance, intelligent numerical control and the like;

for example, patent publication CN209587284U (electric actuator for adjusting valve): the electric actuator comprises an electric actuator body, an electric actuator motor, a liquid cooling component and a cooling fan, wherein the electric actuator motor is fixed in the middle of one side of the electric actuator body, the liquid cooling component is fixed on one side of the electric actuator body corresponding to the electric actuator motor, and the cooling fan is fixed at one end of the liquid cooling component away from the electric actuator body. According to the utility model, the liquid cooling component is arranged on the outer surface of the motor of the electric actuator, the heat conducting rubber pad is contacted with the surface of the motor of the electric actuator, heat generated by the motor of the electric actuator is absorbed and taken away by cooling liquid in the heat conducting rubber pad, and the cooling liquid absorbing the heat flows into the water tank through the water outlet pipe, so that the heat dissipation efficiency is improved; the cooling fan performs air cooling and radiates heat, so that the heat is blown away, and the cooling fan simultaneously takes away part of the heat of the annular cooling pipe, so that the heat radiation efficiency of the motor of the electric actuator is improved;

the electric actuator at present adopts the motor to control, but the outside of motor does not possess explosion-proof guardrail, and the motor is outdoor use or high temperature environment use, can't carry out explosion-proof protection, and electric actuator adopts natural heat dissipation in the use, and this kind of mode heat dissipation is not high enough, and it is overheated easily outdoor, and the security performance is not enough.

Disclosure of Invention

The utility model aims to provide an explosion-proof electric actuator, which aims to solve the problems that the electric actuator provided in the background art adopts a motor for control, but the outer side of the motor is not provided with an explosion-proof guardrail, the motor cannot be explosion-proof protected in the outdoor use or high-temperature environment use process, and the electric actuator adopts natural heat dissipation in the use process, so that the heat dissipation is not efficient enough, the motor is easy to overheat outdoors, and the safety performance is insufficient.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides an explosion-proof electric actuator, includes aircraft nose, motor and gear box, the top and the one side of gear box are equipped with aircraft nose and motor respectively, the outside of motor is equipped with the third rail guard, the outside of aircraft nose is equipped with the protection casing, the positive and negative department of centering of protection casing all is equipped with limit baffle, the outside of protection casing is equipped with first rail guard, the bottom of gear box is equipped with the support frame, the inside of gear box is equipped with the valve rod.

In a further embodiment, limiting plates and flange plates are respectively arranged at two ends of the motor, an installation groove is formed in the middle of the flange plate, and a third guard rail is arranged between the installation groove and the limiting plates.

In a further embodiment, a driving gear and a driven gear capable of mutually gear transmission are arranged in the gear box, the driving gear is connected with an output shaft of the motor, and the driven gear is arranged at one end of the valve rod.

In a further embodiment, the two sides of the supporting frame are respectively provided with a supporting rod, and the front side and the back side of the supporting frame are respectively provided with a baffle frame with an integrated structure.

In a further embodiment, a cold water inlet is formed in one side of the top of the protective cover, and a liquid storage cavity is formed in the protective cover.

In a further embodiment, the first guard rails are provided with a plurality of guard rails, and a second guard rail capable of being communicated with the inner wall is welded between the plurality of first guard rails.

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

the machine head is provided with the protective cover, the front and rear surfaces of the protective cover are respectively provided with the limit baffle, the machine head can be reinforced and protected through the limit baffles, the outer side of the protective cover is provided with the first protective fences, the second protective fences are arranged among the first protective fences, so that the protective capability of the machine head can be improved, cold water can be stored in the protective cover and is split to the first protective fences, and the first protective fences are split to the second protective fences, so that the machine head can absorb heat and cool, the heat dissipation capability is improved, and the machine head can be prevented from being overheated.

The motor is provided with the third guard rail outside, the motor can be subjected to explosion-proof protection through the third guard rail, the explosion-proof capacity of the motor can be improved, the bottom end of the gear box is provided with the support frame, the front surface and the rear surface of the support frame are both provided with the baffle frames, and the two sides of the support frame are both provided with the support rods, so that the protection capacity of the valve rod can be improved.

Drawings

FIG. 1 is a schematic view of an explosion-proof electric actuator according to the present utility model;

FIG. 2 is a schematic structural view of a protective cover according to the present utility model;

FIG. 3 is a top view of the shield of the present utility model;

FIG. 4 is a front view of a flange plate of the present utility model;

fig. 5 is a schematic structural view of the portion a of the present utility model.

In the figure: 1. a first guard rail; 2. a second guard rail; 3. a machine head; 4. a limit baffle; 5. a protective cover; 6. a third guard rail; 7. a limiting plate; 8. a motor; 9. a gear box; 10. a baffle frame; 11. a support rod; 12. a support frame; 13. a valve stem; 14. a flange plate; 15. a mounting groove; 16. a cold water inlet; 17. a drive gear; 18. a driven gear.

Description of the embodiments

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Referring to fig. 1-5, an embodiment of the present utility model is provided: the utility model provides an explosion-proof electric actuator, includes aircraft nose 3, motor 8 and gear box 9, and the top and the one side of gear box 9 are equipped with aircraft nose 3 and motor 8 respectively, and the outside of motor 8 is equipped with third rail guard 6, and the outside of aircraft nose 3 is equipped with protection casing 5, and the positive and negative department of centering of protection casing 5 all is equipped with limit baffle 4, and the outside of protection casing 5 is equipped with first rail guard 1, and the bottom of gear box 9 is equipped with support frame 12, and the inside of gear box 9 is equipped with valve rod 13.

The valve rod 13 is driven to rotate by a gear in the gear box 9 through the motor 8, the outer side of the motor 8 is protected through the third protective guard 6, the outer side of the machine head 3 can be protected safely through the protective cover 5, the machine head 3 is protected from explosion through the first protective guard 1, heat absorption can be carried out through cold water in the machine head 3, and the heat dissipation effect can be enhanced.

Further, both ends of the motor 8 are respectively provided with a limiting plate 7 and a flange plate 14, the middle part of the flange plate 14 is provided with a mounting groove 15, a third guard rail 6 is arranged between the mounting groove 15 and the limiting plate 7, and the third guard rail 6 is mounted through the flange plate 14 and the limiting plate 7.

Further, a driving gear 17 and a driven gear 18 which can be mutually in gear transmission are arranged in the gear box 9, the driving gear 17 is connected with an output shaft of the motor 8, the driven gear 18 is arranged at one end of the valve rod 13, and the driving gear 17 is driven to rotate through the motor 8, so that the driving gear 17 and the driven gear 18 are in gear transmission, and the valve rod 13 is driven to rotate.

Further, the support rods 11 are arranged on two sides of the support frame 12, the baffle frames 10 with integrated structures are arranged on the front side and the back side of the support frame 12, and the support rods 11 are used for protecting the side faces of the support frame 12.

Further, a cold water inlet 16 is formed in one side of the top of the protective cover 5, a liquid storage cavity is formed in the protective cover 5, and cold water is conveniently injected into the protective cover 5 through the cold water inlet 16.

Further, the first guard rails 1 are provided with a plurality of guard rails, and the second guard rails 2 which can be communicated with the inner wall are welded among the plurality of first guard rails 1.

Working principle: when the anti-explosion protection device is used, cold water is injected into the inner cavity of the protection cover 5 through the protection cover 5 by the cold water inlet 16, the anti-explosion protection can be carried out on the machine head 3 through the first protection cover 1 and the second protection cover 2, cold water in the protection cover 5 can be shunted into the first protection cover 1 and is shunted to the outer side of the machine head 3 through the second protection cover 2, the first protection cover 1 and the second protection cover 2 can absorb heat from the outer side of the machine head 3, the heat dissipation capacity of the machine head 3 can be improved, the anti-explosion capacity can be improved, the motor 8 can be protected in an anti-explosion mode through the third protection cover 6, the driving gear 17 and the driven gear 18 are driven by the motor 8 to drive the valve rod 13 to rotate through the electric control, the valve rod 13 is controlled to rotate through the driven gear 18, the support rod 11 is used for supporting and stabilizing the support frame 12, and the valve rod 13 can be blocked and protected through the blocking frame 10.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides an explosion-proof type electric actuator, includes aircraft nose (3), motor (8) and gear box (9), its characterized in that: the top and one side of gear box (9) are equipped with aircraft nose (3) and motor (8) respectively, the outside of motor (8) is equipped with third rail guard (6), the outside of aircraft nose (3) is equipped with protection casing (5), the positive and negative department of centering of protection casing (5) all is equipped with limit baffle (4), the outside of protection casing (5) is equipped with first rail guard (1), the bottom of gear box (9) is equipped with support frame (12), the inside of gear box (9) is equipped with valve rod (13).

2. An explosion-proof electric actuator as set forth in claim 1, wherein: the motor is characterized in that limiting plates (7) and flange plates (14) are respectively arranged at two ends of the motor (8), an installation groove (15) is formed in the middle of each flange plate (14), and a third protective guard (6) is arranged between each installation groove (15) and each limiting plate (7).

3. An explosion-proof electric actuator as set forth in claim 1, wherein: the inside of gear box (9) is equipped with but drive gear (17) and driven gear (18) of mutual gear drive, the output shaft of drive gear (17) and motor (8) is connected, driven gear (18) establish the one end at valve rod (13).

4. An explosion-proof electric actuator as set forth in claim 1, wherein: the two sides of the supporting frame (12) are respectively provided with a supporting rod (11), and the front side and the back side of the supporting frame (12) are respectively provided with a baffle frame (10) with an integrated structure.

5. An explosion-proof electric actuator as set forth in claim 1, wherein: a cold water inlet (16) is formed in one side of the top of the protective cover (5), and a liquid storage cavity is formed in the protective cover (5).

6. An explosion-proof electric actuator as set forth in claim 1, wherein: the first guard rails (1) are provided with a plurality of guard rails, and second guard rails (2) which can be communicated with the inner wall are welded among the plurality of first guard rails (1).