CN219866581U - Torque protection mechanism of electric valve actuator - Google Patents

Abstract

The utility model discloses an electric valve actuator torque protection mechanism, which includes: a valve structure, which includes a valve body and a valve stem arranged in the valve body. A plurality of mounting feet are fixedly connected to the outer wall of the valve body, and The side walls of the mounting feet are provided with mounting holes that penetrate front and back, the upper end of the valve body is fixedly connected to a vertical protective cover, and the valve stem is correspondingly connected to the inside of the protective cover; the actuator structure includes a protective cover connected to The actuator housing at the upper end is provided with a driving component connected to the valve stem, and a torque sensor connected to the driving component is provided within the actuator housing. The utility model is provided with a protective cover on the outside of the valve stem, and the protective cover is detachably connected to the actuator housing. On the one hand, it improves the protection of the valve stem, and on the other hand, it facilitates the disassembly of the protective cover. In addition, the utility model The utility model can accurately observe the steering angle of the valve stem by setting the angle display component.

Description

A torque protection mechanism for electric valve actuators

Technical field

The utility model relates to the technical field of valve actuators, and in particular to an electric valve actuator torque protection mechanism.

Background technique

An electric actuator can provide a driving device for linear or rotary motion. It uses a certain driving energy and works under a certain control signal. The actuator uses liquid, gas, electricity or other energy and drives it through a motor, cylinder or other device. converted into driving force.

The existing electric actuator torque protection device detects the output torque of the motor through a sensor during use. When the set value is detected, the motor is controlled to stop working and then the motor is protected. However, the existing The actuator torque protection structure lacks monitoring of valve stem angle changes, and the valve stem lacks a protective structure when in use, reducing its service life. For this reason, we propose an electric valve actuator torque protection mechanism to solve the above problems.

Utility model content

The purpose of this section is to outline some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section, the abstract and the utility model title of this application to avoid obscuring the purpose of this section, the abstract and the utility model title, and such simplifications or omissions cannot be used to limit the utility model. range.

In view of the above-mentioned problems existing in the torque protection mechanism of the existing electric valve actuator, the present utility model is proposed.

Therefore, the purpose of this utility model is to provide a torque protection mechanism for an electric valve actuator, which is provided with a protective cover on the outside of the valve stem, and the protective cover is detachably connected to the actuator housing. On the one hand, it improves the protection The protection of the valve stem, on the other hand, facilitates the removal of the protective cover.

In order to solve the above technical problems, the present utility model provides the following technical solution: an electric valve actuator torque protection mechanism, including: a valve structure, which includes a valve body and a valve stem arranged in the valve body. A plurality of mounting feet are fixedly connected, and the side walls of the mounting feet are provided with mounting holes that penetrate from front to back. The upper end of the valve body is fixedly connected to a vertical protective cover, and the valve stem is correspondingly connected to the inside of the protective cover; execute The actuator structure includes an actuator housing connected to the upper end of the protective cover. A driving component connected to the valve stem is provided in the actuator housing. A torque sensor connected to the driving component is provided in the actuator housing. The upper end of the actuator housing is provided with an angle display component connected to the valve stem, and the upper end of the actuator housing is provided with a support component connected to the external controller.

As a preferred solution of the electric valve actuator torque protection mechanism of the present invention, the driving assembly includes a driving motor arranged in the actuator housing, and a worm is fixedly connected to the output end of the driving motor. A worm gear connected to the worm is fixedly connected to the outer wall of the valve stem.

As a preferred solution of the electric valve actuator torque protection mechanism of the present invention, the outer wall of the actuator housing is provided with a heat dissipation hole connected to the inside thereof, and the upper end of the protective cover is fixedly connected with a mounting The mounting seat is fixedly connected to the bottom wall of the actuator housing through bolts.

As a preferred solution of the electric valve actuator torque protection mechanism of the present invention, the angle display assembly includes a support rod fixedly connected to the upper end of the valve stem, and the upper end of the support rod extends to the actuator housing. On the upper side, a rotating base is fixedly connected to the outer wall of the support rod, and an angle scale is provided on the outer wall of the rotating base.

As a preferred solution of the electric valve actuator torque protection mechanism of the present invention, the support assembly includes two first L-shaped brackets fixedly connected to the upper end of the actuator housing, and the two first L-shaped brackets are fixedly connected to the upper end of the actuator housing. The brackets are correspondingly arranged on both sides of the rotating base. The inner wall of the first L-shaped bracket is fixedly connected with a second L-shaped bracket. The upper end of the second L-shaped bracket is evenly provided with a plurality of screw holes.

As a preferred solution of the electric valve actuator torque protection mechanism of the present invention, the first L-shaped bracket and the actuator housing are fixedly connected by screws, and the two second L-shaped brackets are symmetrical It is arranged on the outside of the rotating base and plays a protective role.

Beneficial effects of the utility model: The utility model is provided with a protective cover on the outside of the valve stem, and the protective cover is detachably connected to the actuator housing. On the one hand, the protection of the valve stem is improved, and on the other hand, it is convenient. The disassembly of the protective cover. In addition, the utility model can accurately observe the steering angle of the valve stem by setting the angle display component, and can play a protective effect on the rotating seat by setting the support component. Installing the controller on the support component can Realize control of the drive components in the actuator housing.

Description of the drawings

In order to explain the technical solutions of the embodiments of the present utility model more clearly, the drawings needed to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. , for those of ordinary skill in the art, other drawings can also be obtained based on these drawings without exerting creative labor. in:

Figure 1 is a schematic diagram of the front overall structure of the electric valve actuator torque protection mechanism of the present utility model.

Figure 2 is a schematic structural view from below of the torque protection mechanism of the electric valve actuator of the present invention.

Figure 3 is a schematic top view of the torque protection mechanism of the electric valve actuator of the present invention.

Detailed ways

In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation modes of the present invention will be described in detail below in conjunction with the accompanying drawings.

Many specific details are set forth in the following description in order to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described here. Those skilled in the art can implement the utility model without violating the connotation of the present utility model. Similar generalizations are made under different circumstances, so the present utility model is not limited by the specific embodiments disclosed below.

Secondly, "one embodiment" or "an embodiment" referred to herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. "In one embodiment" appearing in different places in this specification does not all refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments.

Next, the present invention will be described in detail with reference to schematic diagrams. When describing the embodiments of the present invention in detail, for the convenience of explanation, the cross-sectional diagram showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples. The scope of protection of the present invention should not be limited. In addition, the three-dimensional dimensions of length, width and depth should be included in actual production.

Referring to Figures 1-3, an electric valve actuator torque protection mechanism is provided, including: a valve structure 100, which includes a valve body 101 and a valve stem 102 arranged in the valve body 101. The outer wall of the valve body 101 is fixedly connected There are multiple mounting legs, and the side walls of the mounting legs are provided with mounting holes that penetrate front and rear. The upper end of the valve body 101 is fixedly connected to a vertical protective cover 103, and the valve stem 102 is correspondingly connected to the inside of the protective cover 103.

Among them, the actuator structure 200 includes an actuator housing 201 connected to the upper end of the protective cover 103. The outer side wall of the actuator housing 201 is provided with a heat dissipation hole communicating with its interior. The upper end of the protective cover is fixedly connected with a mounting base 104. The seat 104 and the bottom wall of the actuator housing 201 are fixedly connected by bolts. The actuator housing 201 is provided with a driving assembly connected to the valve stem 102. The driving assembly includes a driving motor provided in the actuator housing 201. The driving assembly A worm is fixedly connected to the output end of the motor, and a worm gear connected to the worm is fixedly connected to the outer wall of the valve stem 102. The steering of the valve stem 102 is controlled through the transmission mode of the worm and worm gear, and a torque sensor is used to monitor it to ensure that the valve Stable use of the rod 102, and the monitoring process is an existing technology and will not be described again.

Further, the actuator housing 201 is provided with a torque sensor connected to the driving component. The upper end of the actuator housing 201 is provided with an angle display component connected to the valve stem. The angle display component includes a support fixedly connected to the upper end of the valve stem 102. Rod 202, the upper end of the support rod 202 extends to the upper side of the actuator housing 201, and a rotating base 203 is fixedly connected to the outer wall of the supporting rod 202. An angle scale is provided on the outer wall of the rotating base 203, and the execution The upper end of the actuator housing 201 is provided with a support assembly connected to the external controller. The support assembly includes two first L-shaped brackets 204 fixedly connected to the upper end of the actuator housing 201, and the two first L-shaped brackets 204 are provided correspondingly. On both sides of the rotating base 203, a second L-shaped bracket 205 is fixedly connected to the inner wall of the first L-shaped bracket 204. The upper end of the second L-shaped bracket 205 is evenly provided with a plurality of screw holes. Specifically, the first The L-shaped bracket 204 is fixedly connected to the actuator housing 201 by screws. The two second L-shaped brackets 204 are symmetrically arranged on the outside of the rotating seat 203 and play a protective role. The angle display assembly can control the steering of the valve stem 102. The angle can be accurately observed, and the rotation base 203 can be protected through the setting of the support assembly. In addition, the controller is installed on the support assembly to control the driving assembly in the actuator housing 201.

It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not limiting. Although the present utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the present utility model can be modified. Any modification or equivalent substitution of the technical solution without departing from the spirit and scope of the technical solution of the present invention shall be covered by the claims of the present invention.

Claims (6)

1. An electrically operated valve actuator torque protection mechanism, comprising:

the valve structure (100) comprises a valve body (101) and a valve rod (102) arranged in the valve body (101), wherein a plurality of mounting feet are fixedly connected to the outer side wall of the valve body (101), mounting holes penetrating through the mounting feet from front to back are formed in the side wall of the mounting feet, a vertical protective cover (103) is fixedly connected to the upper end of the valve body (101), and the valve rod (102) is correspondingly connected to the inner side of the protective cover (103);

the actuator structure (200) comprises an actuator shell (201) connected to the upper end of the protective cover (103), a driving assembly connected with the valve rod (102) is arranged in the actuator shell (201), a torque sensor connected with the driving assembly is arranged in the actuator shell (201), an angle display assembly connected with the valve rod is arranged at the upper end of the actuator shell (201), and a supporting assembly connected with an external controller is arranged at the upper end of the actuator shell (201).

2. The electrically operated valve actuator torque protection mechanism of claim 1, wherein: the driving assembly comprises a driving motor arranged in an actuator shell (201), the output end of the driving motor is fixedly connected with a worm, and the outer side wall of the valve rod (102) is fixedly sleeved with a worm wheel connected with the worm.

3. The electrically operated valve actuator torque protection mechanism of claim 2, wherein: the outer side wall of the actuator shell (201) is provided with a radiating hole communicated with the inside of the actuator shell, the upper end of the protective cover is fixedly connected with a mounting seat (104), and the mounting seat (104) is fixedly connected with the bottom wall of the actuator shell (201) through bolts.

4. A valve actuator torque protection mechanism as set forth in claim 3 wherein: the angle display assembly comprises a supporting rod (202) fixedly connected to the upper end of the valve rod (102), the upper end of the supporting rod (202) extends to the upper side of the actuator shell (201), a rotating seat (203) is fixedly sleeved on the outer side wall of the supporting rod (202), and angle scale marks are arranged on the outer side wall of the rotating seat (203).

5. The electrically operated valve actuator torque protection mechanism of claim 1, wherein: the support assembly comprises two first L-shaped brackets (204) fixedly connected to the upper end of the actuator shell (201), the two first L-shaped brackets (204) are correspondingly arranged on two sides of the rotating seat (203), second L-shaped brackets (205) are fixedly connected to the inner side walls of the first L-shaped brackets (204), and a plurality of screw holes are uniformly distributed in the upper ends of the second L-shaped brackets (205).

6. The electrically operated valve actuator torque protection mechanism of claim 5, wherein: the first L-shaped brackets (204) are fixedly connected with the actuator shell (201) through screws, and the two second L-shaped brackets (205) are symmetrically arranged on the outer side of the rotating seat (203) and play a role in protection.