CN220980444U

CN220980444U - Valve electric actuator without support and with mechanical limit

Info

Publication number: CN220980444U
Application number: CN202322854416.7U
Authority: CN
Inventors: 蕭越超; 萧逸鹏
Original assignee: Aoyi Technology Guangdong Co ltd
Current assignee: Aoyi Technology Guangdong Co ltd
Priority date: 2023-10-24
Filing date: 2023-10-24
Publication date: 2024-05-17
Anticipated expiration: 2033-10-24

Abstract

The utility model discloses a valve electric actuator without a support and with mechanical limit, which belongs to the field of valve electric actuators. According to the utility model, the tail end of the output shaft is provided with the pair of protruding limiting lugs, and meanwhile, the bottom groove of the shell is movably provided with the pair of limiting bolts, and the length of the limiting bolts extending into the groove can be adjusted through the nut structure, so that the rotation range of the limiting lugs is limited, and the mechanical limiting of the output shaft is realized; the whole actuator occupies small space, has light weight, has a mechanical limiting function, is more accurate in transmission and is greatly convenient to use.

Description

Valve electric actuator without support and with mechanical limit

Technical Field

The utility model relates to the field of valve electric actuators, in particular to a valve electric actuator which is free of a bracket and provided with mechanical limiting.

Background

In the conventional valve electric actuator and valve assembly, a bracket (a flange connecting a base of a driving device and a valve) and a coupling (a valve rod connecting an output shaft of the driving device and the valve) are generally used, as shown in the following figure one. The scheme has the advantage that the installation between the driving device and the valves with various installation sizes is possible through the change of the installation hole positions of the bracket. The disadvantages of the above solution are also evident by the addition of a bracket and a coupling between the drive and the valve. Not only the weight and the cost of the driving valve are increased, but also the volume of the driving valve and the space requirement are increased, and the connection clearance and the transmission error are increased, so that the control precision of the valve is affected.

Disclosure of utility model

The utility model mainly aims to provide a valve electric actuator without a bracket and with mechanical limit, which can effectively solve the problems in the background technology.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

The utility model provides a exempt from support and take mechanical spacing's valve electric actuator, includes the shell, the inside one end of shell is equipped with the motor, and the other end is equipped with a fore-and-aft worm, the output of motor is connected to the one end of worm through a gear reduction device transmission, vertically install an output shaft in the middle of the inside of shell, the output shaft passes through a worm wheel piece and is connected with worm transmission, and the bottom of output shaft is fixed to the shell through a pair of stop bolt is spacing.

Preferably, the output end of the motor is connected with a gear in transmission connection with the power input end of the gear reduction device, and one end of the worm is also connected with a gear in transmission connection with the power output end of the gear reduction device.

Preferably, a mounting part is arranged in the middle of the output shaft, and the worm wheel sheet is clamped and mounted at the mounting part, so that the output shaft is driven to rotate.

Preferably, the bottom symmetry of output shaft is equipped with spacing ear that is to the one-to-one body structure, spacing ear penetrates in the recess of shell bottom, spacing bolt just movable mounting is on the inner wall of this recess to spacing ear can be withstood to spacing bolt's tip.

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

According to the utility model, the tail end of the output shaft is provided with the pair of protruding limiting lugs, and meanwhile, the bottom groove of the shell is movably provided with the pair of limiting bolts, and the length of the limiting bolts extending into the groove can be adjusted through the nut structure, so that the rotation range of the limiting lugs is limited, and the mechanical limiting of the output shaft is realized; the whole actuator occupies small space, has light weight, has a mechanical limiting function, is more accurate in transmission and is greatly convenient to use.

Drawings

FIG. 1 is a schematic view (top view) of the overall structure of a bracket-free valve electric actuator with mechanical limit;

FIG. 2 is a schematic diagram of the output shaft of the valve electric actuator without the bracket and with mechanical limitation;

Fig. 3 is a schematic view of the whole structure of the valve electric actuator without the bracket and with mechanical limitation (bottom view).

In the figure: 1. a housing; 2. a motor; 3. a gear reduction unit; 4. a worm; 5. a worm wheel piece; 6. an output shaft; 7. a mounting part; 8. a limiting lug; 9. and a limit bolt.

Detailed Description

The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and for example, "connected," may be either fixedly connected, detachably connected, integrally or mechanically connected, and the specific meaning of the terms in the present utility model will be understood to those of ordinary skill in the art.

As shown in fig. 1-3, the valve electric actuator free of a bracket and provided with mechanical limiting comprises a housing 1, wherein one end of the interior of the housing 1 is provided with a motor 2, the other end of the housing is provided with a longitudinal worm 4, the output end of the motor 2 is connected with a gear in transmission connection with the power input end of a gear reduction device 3, one end of the worm 4 is also connected with a gear in transmission connection with the power output end of the gear reduction device 3, an output shaft 6 is vertically arranged in the middle of the interior of the housing 1, the middle of the output shaft 6 is provided with a mounting part 7, and a worm wheel piece 5 is mounted at the mounting part 7 in a clamping way, so that the output shaft 6 is driven to rotate.

In this embodiment, the bottom symmetry of output shaft 6 is equipped with spacing ear 8 of one-to-one body structure, and spacing ear 8 penetrates in the recess of shell 1 bottom, and spacing bolt 9 just movable mounting is on the inner wall of this recess to spacing ear 8 can be withstood to spacing bolt 9's tip.

In actual use, the shell 1, the motor 2, the gear reduction device 3, the worm 4, the worm wheel 5 and the output shaft 6 form the valve electric actuator, wherein the power provided by the motor 2 is primarily reduced and boosted by the gear reduction device 3 and then is transmitted to the worm 4 to drive the worm 4 to rotate, the worm 4 is meshed with the worm wheel 5 to drive the worm wheel 5 to rotate, the worm wheel 5 is clamped and installed on the output shaft 6, and the output shaft 6 is naturally and synchronously rotated, so that basic output of moment and motion is realized. The limit lug 8 newly designed on the output shaft 6 protrudes, the limit lug 8 can rotate freely in the circular groove at the bottom of the shell 1, the limit bolt 9 installed penetrates through the groove, the limit bolt 9 is adjusted to extend into the length of the groove through the nut, and the limit lug 8 can be blocked and limited on the rotating track of the limit lug 8, so that the mechanical limit of the output shaft 6 is completed, the limit lug 8 and the limit bolt 9 are designed without increasing the volume of an actuator, and meanwhile, the limit adjustment is more convenient.

The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. Exempt from support and take mechanical spacing's valve electric actuator, its characterized in that: including shell (1), the inside one end of shell (1) is equipped with motor (2), and the other end is equipped with a fore-and-aft worm (4), the output of motor (2) is connected to the one end of worm (4) through a gear reduction (3) transmission, an output shaft (6) is vertically installed in the middle of the inside of shell (1), output shaft (6) are connected with worm (4) transmission through a worm wheel piece (5), and the bottom of output shaft (6) is spacing fixed to shell (1) through a pair of spacing bolt (9).

2. The bracket-free and mechanically limited valve electric actuator of claim 1, wherein: the output end of the motor (2) is connected with a gear in transmission connection with the power input end of the gear reduction device (3), and one end of the worm (4) is also connected with a gear in transmission connection with the power output end of the gear reduction device (3).

3. The bracket-free and mechanically limited valve electric actuator of claim 1, wherein: the middle part of the output shaft (6) is provided with a mounting part (7), and the worm wheel piece (5) is mounted at the mounting part (7) in a clamping way, so that the output shaft (6) is driven to rotate.

4. The bracket-free and mechanically limited valve electric actuator of claim 1, wherein: the bottom symmetry of output shaft (6) is equipped with spacing ear (8) of one-to-one body structure, spacing ear (8) penetrate in the recess of shell (1) bottom, spacing bolt (9) just movable mounting is on the inner wall of this recess to spacing ear (8) can be withstood to the tip of spacing bolt (9).