CN219499155U

CN219499155U - Automatic reset electric actuator

Info

Publication number: CN219499155U
Application number: CN202320581257.5U
Authority: CN
Inventors: 孙超; 蔡祯强; 王绪浩
Original assignee: Shandong Yarui Zhicheng Automation Technology Co ltd
Current assignee: Shandong Yarui Zhicheng Automation Technology Co ltd
Priority date: 2023-03-20
Filing date: 2023-03-20
Publication date: 2023-08-08
Anticipated expiration: 2033-03-20

Abstract

The utility model discloses an automatic reset electric actuator, which comprises a shell, a motor, a first gear, a second gear, a transmission rod, a fourth gear and an output shaft, wherein the motor is arranged on the inner wall of the shell, the first gear is fixedly sleeved on a motor shaft, the second gear is rotatably arranged in an inner cavity of the shell, one side of the second gear is meshed with the first gear, the transmission rod is rotatably arranged in the inner cavity of the shell and is meshed with the second gear, the fourth gear is rotatably arranged in the inner cavity of the shell and is meshed with the transmission rod, one end of the output shaft extends out of the shell, the shell is used for installing other components, a sealed environment is formed, the protection effect is achieved on the components in the shell, the motor is arranged on the inner wall of the shell and is used for outputting power, and meanwhile, the first gear is arranged to be driven to rotate, and the automatic reset electric actuator has the advantages of automatic reset when power failure and large load.

Description

Automatic reset electric actuator

Technical Field

The utility model relates to the technical field of electric actuators, in particular to an automatic reset electric actuator.

Background

An electric actuator is a driving device capable of providing linear or rotary motion, which utilizes a certain driving energy source and works under the action of a certain control signal, and the actuating mechanism uses liquid, gas, electric power or other energy sources and converts the liquid, gas, electric power or other energy sources into driving actions through a motor, a cylinder or other devices, and the basic types of the electric actuator are three driving modes of partial revolution, multi-revolution and linear travel.

However, the existing electric actuator has the following disadvantages in use: the reset cannot be automatically performed after power failure, accidents are easy to cause, and there is room for improvement.

Disclosure of Invention

The present utility model aims to solve one of the technical problems existing in the prior art or related technologies.

The technical scheme adopted by the utility model is as follows: an automatic reset electric actuator comprising: the main body module comprises a shell, a motor arranged on the inner wall of the shell, a first gear fixedly sleeved on a motor shaft, a second gear rotatably arranged in the inner cavity of the shell and meshed with the first gear on one side, a transmission rod rotatably arranged in the inner cavity of the shell and meshed with the second gear, a fourth gear rotatably arranged in the inner cavity of the shell and meshed with the transmission rod, and an output shaft with one end fixedly connected with the fourth gear and the other end extending out of the shell.

The protection module comprises a sealing shell fixed on the outer side surface of the shell, a current sensor arranged on the inner wall of the sealing shell and extending out of the sealing shell, an electric connection port arranged at the top end of the current sensor, a storage battery arranged on the inner wall of the sealing shell and a central control assembly arranged on the inner wall of the sealing shell.

The present utility model may be further configured in a preferred example to: the transmission rod comprises a connecting rod rotatably arranged in the inner cavity of the shell and third gears symmetrically fixed at two ends of the connecting rod.

The present utility model may be further configured in a preferred example to: and the third gear on one side of the connecting rod is meshed with the second gear, and the third gear on the other side of the connecting rod is meshed with the fourth gear.

The present utility model may be further configured in a preferred example to: the output end of the storage battery is electrically connected with the input ends of the current sensor, the motor and the central control assembly through wires.

The present utility model may be further configured in a preferred example to: the central control assembly comprises a processor arranged on the inner wall of the sealing shell, a signal transmitting unit arranged on one side of the processor and a control unit arranged on one side of the signal transmitting unit.

The present utility model may be further configured in a preferred example to: the output end of the current sensor is electrically connected with the input end of the processor through an electric wire.

The present utility model may be further configured in a preferred example to: a control switch is arranged on a circuit between the storage battery and the motor, and the output end of the control unit is electrically connected with the control switch through an electric wire.

By adopting the technical scheme, the beneficial effects obtained by the utility model are as follows:

1. according to the utility model, the storage battery is arranged in the sealed shell, the current sensor is arranged at the power connection port of the electric actuator, whether current is input to the electric actuator is detected by the current sensor, when the power is off, the current sensor detects no current input, namely, power failure is judged, the central control component immediately starts a reset program, the storage battery supplies power for the motor, and the motor is controlled to start to drive the actuating mechanism to reset, so that the situation that the electric actuator cannot be reset in time when the power is off is effectively avoided, and the intelligent level of the electric actuator is further increased.

2. According to the utility model, the two-stage speed reducing mechanism is arranged in the inner cavity of the shell, the first gear drives the second gear to rotate for first-stage speed reduction, and the transmission rod drives the fourth gear to rotate for second-stage speed reduction, so that the torque of the output shaft is increased by double speed reduction, and the electric actuator can load a larger actuating mechanism, thereby increasing the application range of the electric actuator and further increasing the practicability.

Drawings

FIG. 1 is a schematic top view of the present utility model;

FIG. 2 is a schematic view of the bottom view of the present utility model;

FIG. 3 is a schematic cross-sectional view of the present utility model;

FIG. 4 is a schematic view of a portion of a main body module structure according to the present utility model;

fig. 5 is a schematic diagram of a connection relationship of a protection module according to the present utility model.

Reference numerals:

100. a main body module; 110. a housing; 120. a motor; 130. a first gear; 140. a second gear; 150. a transmission rod; 151. a connecting rod; 152. a third gear; 160. a fourth gear; 170. an output shaft;

200. a protection module; 210. a sealed housing; 220. a current sensor; 230. an electrical connection port; 240. a storage battery; 250. a central control assembly; 251. a processor; 252. a signal transmitting unit; 253. and a control unit.

Detailed Description

The objects, technical solutions and advantages of the present utility model will become more apparent by the following detailed description of the present utility model with reference to the accompanying drawings. It should be noted that, without conflict, the embodiments of the present utility model and features in the embodiments may be combined with each other.

Some embodiments of the utility model are described below with reference to the accompanying drawings,

example 1:

as shown in connection with fig. 1-5, the present embodiment provides: an automatic reset electric actuator comprising: the body module 100 and the shielding module 200.

The main body module 100 includes a housing 110, a motor 120 mounted on an inner wall of the housing 110, a first gear 130 fixedly sleeved on a shaft of the motor 120, a second gear 140 rotatably mounted in an inner cavity of the housing 110 and having one side engaged with the first gear 130, a transmission rod 150 rotatably mounted in the inner cavity of the housing 110 and engaged with the second gear 140, a fourth gear 160 rotatably mounted in the inner cavity of the housing 110 and engaged with the transmission rod 150, and an output shaft 170 having one end fixedly connected with the fourth gear 160 and the other end extending out of the housing 110.

The housing 110 is used for installing other components, forming a sealed environment, protecting the internal components, and the motor 120 is installed on the inner wall of the housing 110 for outputting power, and is used for installing the first gear 130 and driving the first gear 130 to rotate.

The diameter of the first gear 130 is smaller than that of the second gear 140, so that when the first gear 130 drives the second gear 140 to rotate, the rotation speed is reduced, the torque is increased, and the transmission rod 150 is used for transmitting the rotation of the second gear 140 to the fourth gear 160.

Further, the transmission rod 150 includes a connecting rod 151 rotatably installed in the inner cavity of the housing 110 and third gears 152 symmetrically fixed at both ends of the connecting rod 151, the connecting rod 151 is used for maintaining the rotation synchronism of the third gears 152 at both sides, the third gear 152 at one side of the connecting rod 151 is engaged with the second gear 140, the third gear 152 at the other side is engaged with the fourth gear 160, when the second gear 140 rotates, the third gear 152 which drives one side of the transmission rod 150 to be engaged with the second gear 140 rotates, the third gear 152 rotates to drive the third gear 152 which is engaged with the fourth gear 160 to rotate through the connecting rod 151, the second-stage deceleration is performed, the rotation speed is continuously reduced, and the torque is increased.

One end of the output shaft 170 is fixedly connected with the fourth gear 160, and the other end extends out of the housing 110 to be connected with an actuator for outputting power.

The protection module 200 is used for automatically starting the motor 120 to execute a reset procedure when power is off, and avoids accidents, and comprises a sealing shell 210 fixed on the outer side surface of the shell 110, a current sensor 220 installed on the inner wall of the sealing shell 210 and extending out of the sealing shell 210, a power connection port 230 installed at the top end of the current sensor 220, a storage battery 240 installed on the inner wall of the sealing shell 210 and a central control assembly 250 installed on the inner wall of the sealing shell 210.

The sealing shell 210 is used for installing other components, protecting the electronic components in the inner cavity from the influence of external environment, and the electric connection port 230 is connected with the electric wire, so that current is conveniently input to the motor 120 to drive the motor 120 to operate, and in addition, the electric connection port 230 is electrically connected with the storage battery 240 through the electric wire, so that the storage battery 240 is conveniently charged.

The current sensor 220 is configured to monitor whether the power connection port 230 has a current input, so as to determine whether the power connection port is in a power-off state, and when the current sensor 220 detects that the power connection port 230 has no current input, the power connection port is in the power-off state, and transmit an alarm signal to the central control component 250.

The storage battery 240 is used for generating electric quantity, so that the electric actuator can still operate through the power supply of the storage battery 240 when the electric actuator is powered off, the output end of the storage battery 240 is electrically connected with the input ends of the current sensor 220, the motor 120 and the central control assembly 250 through wires, and the current sensor 220, the motor 120 and the central control assembly 250 are ensured to be kept in a working state in the power-off battery.

The central control assembly 250 comprises a processor 251 mounted on the inner wall of the sealed housing 210, a signal transmitting unit 252 arranged on one side of the processor 251 and a control unit 253 arranged on one side of the signal transmitting unit 252, wherein the processor 251 is used for processing data of the current sensor 220, the signal transmitting unit 252 is used for transmitting a reset signal of the electric actuator to an upper computer, a worker can conveniently know that the electric actuator has executed a reset program, and the control unit 253 is used for controlling the motor 120 to execute the reset program.

Further, a control switch is provided on the circuit between the battery 240 and the motor 120, and an output end of the control unit 253 is electrically connected with the control switch through a wire, so that the control switch is turned on when the power is off, so that the battery 240 can supply power for the operation of the motor 120.

The working principle and the using flow of the utility model are as follows: when the electric actuator is used, the electric wire is connected with the electric connection terminal, the electric actuator is started, at the moment, the motor 120 rotates to drive the first gear 130 to rotate, the first gear 130 rotates to drive the second gear 140 to rotate, the first-stage speed reduction is carried out, the second gear 140 rotates to drive the transmission rod 150 to rotate, the transmission rod 150 rotates to drive the fourth gear 160 to rotate, the second-stage speed reduction is carried out, the fourth gear 160 rotates to drive the output shaft 170 to rotate, the power after the speed reduction is output, the executing mechanism is driven to move, the electric actuator works, the current sensor 220 monitors the input condition of current in real time, when no current input is detected, the electric actuator is judged to be in a power-off state, at the moment, the processor 251 opens the circuit switch of the storage battery 240 and the motor 120 through the control unit 253, so that the storage battery 240 starts to supply power for the motor 120, and meanwhile, the motor 120 is controlled to start a reset program, and the executing mechanism is driven to reset.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the utility model as defined by the appended claims and their equivalents.

Claims

1. An automatic reset electric actuator comprising: the protection device is characterized in that the main body module (100) comprises a shell (110), a motor (120) arranged on the inner wall of the shell (110), a first gear (130) fixedly sleeved on the shaft of the motor (120), a second gear (140) rotatably arranged in the inner cavity of the shell (110) and meshed with the first gear (130) on one side, a transmission rod (150) rotatably arranged in the inner cavity of the shell (110) and meshed with the second gear (140), a fourth gear (160) rotatably arranged in the inner cavity of the shell (110) and meshed with the transmission rod (150), and an output shaft (170) with one end fixedly connected with the fourth gear (160) and the other end extending out of the shell (110);

the protection module (200) comprises a sealing shell (210) fixed on the outer side surface of the shell (110), a current sensor (220) arranged on the inner wall of the sealing shell (210) and extending out of the sealing shell (210), an electric connection port (230) arranged at the top end of the current sensor (220), a storage battery (240) arranged on the inner wall of the sealing shell (210) and a central control assembly (250) arranged on the inner wall of the sealing shell (210).

2. The automatic reset electric actuator of claim 1, wherein the transmission rod (150) comprises a connecting rod (151) rotatably installed in the inner cavity of the housing (110) and third gears (152) symmetrically fixed at both ends of the connecting rod (151).

3. The automatic reset electric actuator according to claim 2, wherein the third gear (152) on one side of the connecting rod (151) is intermeshed with the second gear (140), and the third gear (152) on the other side is intermeshed with the fourth gear (160).

4. The automatic reset electric actuator of claim 1, wherein the output end of the storage battery (240) is electrically connected with the input ends of the current sensor (220), the motor (120) and the central control assembly (250) through wires.

5. The automatic reset electric actuator of claim 1, wherein the central control assembly (250) comprises a processor (251) mounted on the inner wall of the sealing case (210), a signal transmitting unit (252) disposed on one side of the processor (251), and a control unit (253) disposed on one side of the signal transmitting unit (252).

6. The automatic reset electric actuator of claim 5, wherein the output of the current sensor (220) is electrically connected to the input of the processor (251) via electrical wiring.

7. The automatic reset electric actuator according to claim 1, wherein a control switch is provided on a circuit between the storage battery (240) and the motor (120), and an output terminal of the control unit (253) is electrically connected to the control switch through an electric wire.