CN211266670U

CN211266670U - Electric actuator

Info

Publication number: CN211266670U
Application number: CN201922460932.5U
Authority: CN
Inventors: 汪玉清; 顾道峰
Original assignee: Jiangsu Jinjili Automatic Control Technology Co ltd
Current assignee: Jiangsu Jinjili Automatic Control Technology Co ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-08-14
Anticipated expiration: 2029-12-31

Abstract

The utility model discloses an electric actuator in the electric control technical field, which comprises a housin, the casing outside fixedly connected with motor, the transmission is connected with the worm wheel on the motor, rotationally be connected with the main shaft on the casing, be connected with the transmission piece on the main shaft, be connected with the worm wheel on the main shaft, the worm wheel is connected with the transmission piece, fixedly connected with transmission bracing piece on the inner wall of casing, the cover is equipped with the transmission support ring on the transmission piece, the transmission support ring suit is on the transmission bracing piece, a plurality of transmission pins have been arranged on the worm wheel, the transmission pin can contact with the transmission piece, the upper portion of driving shaft is connected with the hand wheel, be connected with the card on the main shaft above the transmission piece, the cover is equipped with the spring on the main shaft, the upper end of spring is contradicted at the card downside, the lower extreme of spring is contradicted in one side that the; the utility model discloses in can easily upwards mention the transmission piece.

Description

Electric actuator

Technical Field

The utility model belongs to the technical field of automatically controlled, in particular to electric actuator.

Background

Electric actuators are common mechatronic devices, and are mainly used for automatically operating some devices and apparatuses. The electric actuator in the prior art comprises a shell, a motor is fixedly connected to the shell, a main shaft is rotatably connected to the shell, the motor is in transmission connection with the main shaft, a hand wheel is further connected to the shell and is in transmission connection with the main shaft, when the rotation speed of the main shaft is not required to be driven electrically, the hand wheel is rotated manually, the main shaft is driven by the hand wheel to rotate, the structure for realizing electric and manual separation comprises a transmission block connected to the main shaft, the transmission block is connected with a worm wheel, when the main shaft is driven electrically to rotate, the worm wheel drives the transmission block to rotate, a lifting assembly is connected to the shell, when the main shaft is required to be driven manually to rotate, the transmission block is lifted upwards by the lifting assembly, the transmission block is separated from the worm wheel, in the design, the weight of the transmission block is large, when the transmission block is continuously lifted upwards by the, the weight of the drive block is greater and the lift assembly is not sufficient to lift the drive block at all.

SUMMERY OF THE UTILITY MODEL

To the defect among the prior art, the utility model discloses an overcome the weak point among the above-mentioned prior art, provide an electric actuator, the utility model discloses do not need very big power just can upwards mention the transmission piece, the structure is more reliable.

The purpose of the utility model is realized like this: an electric actuator comprises a shell, wherein a motor is fixedly connected to the outer side of the shell, a worm is connected to the motor in a transmission manner, a main shaft is rotatably connected to the shell, a transmission block is connected to the main shaft, a worm wheel is connected to the main shaft and matched with the worm wheel, the worm wheel is connected with the transmission block in a transmission manner, the transmission block can lift along the worm wheel and drives the main shaft to rotate, a transmission support rod is fixedly connected to the inner wall of the shell, a transmission support ring is sleeved on the transmission block and between the transmission block and the worm wheel, the transmission support ring is sleeved on the transmission support rod, a clamping jaw is arranged on the outer side of the transmission block, a plurality of transmission pins are distributed on the worm wheel, the transmission pins extend upwards out of the worm wheel and can be contacted with the clamping jaw, a hand wheel is connected to the upper portion of the main, contradict at the card downside in the upper end of spring, the lower extreme of spring is contradicted in transmission piece one side up, and the lateral part of casing rotationally is connected with adjustment handle, and adjustment handle's one end is outside the casing, and adjustment handle's the other end is connected with the promotion piece that extends to the transmission support ring, and the sub-unit connection of promotion piece has the lifting plate, and the lifting plate can contradict at the worm wheel upside, stretches into and is connected with the torsional spring on the adjustment handle in the casing.

In the utility model, when the electric drive main shaft is needed to rotate, the motor acts, the rotating shaft rotates, the rotating shaft drives the worm to rotate, the worm rotates to drive the worm wheel to rotate, the driving pin is butted on the clamping jaw, the driving pin drives the driving block to rotate, the driving block drives the main shaft to rotate to drive the driving block to rotate, and the driving block drives the main shaft to rotate; when the spindle is not required to be driven to rotate electrically, the motor does not act, the adjusting handle is rotated to enable the lifting block to abut against the lower side of the transmission support ring, the lifting block pushes the transmission support ring to swing upwards, the transmission support ring pushes the transmission block to move upwards, the adjusting handle is continuously rotated to enable the lifting block to rotate upwards, when the lifting plate abuts against the upper side of the worm wheel at the limiting groove, the adjusting handle is stopped to rotate to enable the adjusting handle to be kept at the position, the clamping jaw completely leaves the transmission pin at the moment, namely the clamping jaw is arranged above the transmission pin, the hand wheel is manually rotated to drive the spindle to rotate, the worm wheel does not rotate, when the rotation angle of the spindle reaches a set angle, the hand wheel is stopped to rotate, the adjusting handle is loosened, and; the weight of the transmission block is reduced through the arrangement of the transmission support ring, the transmission support ring can be lifted upwards without large force, and the rotation of the main shaft driven manually and electrically independently is realized; the spindle can be applied to the work of driving the spindle to rotate in the electric actuating mechanism.

In order to further realize the detection of the number of the rotating turns of the main shaft, a control shell with a control cavity is fixedly connected outside the shell, an encoder is installed in the control shell and fixed outside the shell, a sensing shaft of the encoder extends into the shell, a testing bevel gear is connected to the sensing shaft, a driving bevel gear is connected to the lower portion of the main shaft, and the driving bevel gear is meshed with the testing bevel gear.

In order to prevent the transmission support ring from falling off, one end of the transmission support rod extending upwards is provided with a limiting hole, the transmission support rod is provided with a limiting step, and the transmission support ring is arranged between the limiting holes at the limiting step.

In order to further realize the rotation of the main shaft and the lifting of the transmission block, the transmission block is connected with the main shaft through a key.

Drawings

Fig. 1 is a structural diagram of the present invention.

Fig. 2 is a top view of the present invention.

Fig. 3 is a view from a-a direction in the present invention.

Fig. 4 is a partial perspective view of the transmission block connected to the main shaft of the present invention.

Fig. 5 is a view from direction B-B of the present invention.

Fig. 6 is a partially enlarged view at C in fig. 4.

Fig. 7 is the structure diagram of the middle transmission block and the key connection of the present invention.

The device comprises a motor 1, an adjusting handle 2, a limiting bolt 3, a control shell 4, a shell 5, a limiting disc 6, a hand wheel 7, an encoder 8, a sensing shaft 9, a testing bevel gear 10, a main shaft 11, a driving bevel gear 12, a worm gear 13, a driving pin 14, a driving support rod 15, a limiting step 1501, a driving support ring 16, a driving block 17, a claw 1701, a spring 18, a lifting block 19, a lifting plate 20, a control cavity 21, a worm 22, a limiting hole 23, a key 24 and a torsion spring 25.

Detailed Description

As shown in fig. 1 to 7, an electric actuator includes a housing 5, a motor 1 is fixedly connected to an outer side of the housing 5, a worm 22 is connected to the motor 1 in a driving manner, a spindle 11 is rotatably connected to the housing 5, a transmission block 17 is connected to the spindle 11, a worm wheel 13 is connected to the spindle 11, the worm 22 is matched with the worm wheel 13, the worm wheel 13 is connected to the transmission block 17 in a driving manner, the transmission block 17 can be lifted along the worm wheel 13, the transmission block 17 is connected to the spindle 11 through a key 24, the transmission block 17 drives the spindle 11 to rotate, a transmission support rod 15 is fixedly connected to an inner wall of the housing 5, a transmission support ring 16 is sleeved on the transmission block 17, the transmission support ring 16 is located between the transmission block 17 and the worm wheel 13, the transmission support ring 16 is sleeved on the transmission support rod 15, a claw 1701 is disposed on an outer side of the transmission block 17, the transmission pin 14 can be contacted with the clamping jaw 1701, the upper part of the main shaft 11 is connected with a hand wheel 7, the main shaft 11 above the transmission block 17 is connected with a clamping piece, the main shaft 11 is sleeved with a spring 18, the upper end of the spring 18 is abutted against the lower side of the clamping piece, the lower end of the spring 18 is abutted against one side of the transmission block 17 which faces upwards, the side part of the shell 5 is rotatably connected with an adjusting handle 2, one end of the adjusting handle 2 is arranged outside the shell 5, the other end of the adjusting handle 2 is connected with a lifting block 19 which extends towards the transmission support ring 16, the lower part of the lifting block 19 is connected with a lifting plate 20, the lifting plate 20 can be abutted against the upper side of; be connected with spacing dish 6 on the outer adjustment handle 2 of casing 5, casing 5 outside fixedly connected with prevents adjustment handle 2 clockwise turning's spacing bolt 3, under the initial condition, spacing dish 6 contradicts at spacing bolt 3, and lifting block 19 is in the below of transmission support ring 16.

In order to prevent the transmission support ring 16 from falling off, the end of the transmission support rod 15 extending upwards is provided with a limiting hole 23, the transmission support rod 15 is provided with a limiting step 1501, and the transmission support ring 16 is arranged between the limiting holes 23 at the limiting step 1501.

In order to further realize the detection of the number of rotation turns of the main shaft 11, a control shell 4 with a control cavity 21 is fixedly connected outside the shell 5, an encoder 8 is installed in the control shell 4, the encoder 8 is fixed outside the shell 5, a sensing shaft 9 of the encoder 8 extends into the shell 5, a testing bevel gear 10 is connected to the sensing shaft 9, a driving bevel gear 12 is connected to the lower portion of the main shaft 11, and the driving bevel gear 12 is meshed with the testing bevel gear 10.

The utility model discloses in, when needing electric drive main shaft 11 to rotate, motor 1 action, the pivot is rotated, the pivot drives worm 22 and rotates, worm 22 drives worm wheel 13 and rotates, driving pin 14 conflicts on jack catch 1701, worm wheel 13 drives the rotation of drive block 17, drive block 17 drives the rotation of main shaft 11, the rotation of main shaft 11 drives the rotation of initiative bevel gear 12, the rotation of initiative bevel gear 12 drives the rotation of test bevel gear 10, the rotation of test bevel gear 10 drives the rotation of sensing shaft 9, encoder 8 records the number of turns that sensing shaft 9 rotated, thereby conveniently calculate main shaft 11 pivoted angle; when the main shaft 11 does not need to be driven by the electric motor to rotate, the adjusting handle 2 is rotated anticlockwise, the lifting block 19 is abutted against the lower side of the transmission supporting ring 16, the lifting block 19 pushes the transmission supporting ring 16 to swing upwards, the transmission supporting ring 16 pushes the transmission block 17 to move upwards, the adjusting handle 2 is continuously rotated, the lifting block 19 is rotated upwards, when the lifting plate 20 abuts on the upper side of the worm wheel 13 at the stopper groove, the rotation of the adjustment handle 2 is stopped, and the adjustment handle 2 is held at this position, at which time the claw 1701 is completely separated from the driving pin 14, i.e., the jaws 1701, are above the drive pin 14, the hand wheel 7 is manually rotated, the hand wheel 7 rotates the spindle 11, the worm wheel 13 does not rotate, when the rotation angle of the main shaft 11 reaches a set angle, stopping rotating the hand wheel 7, loosening the adjusting handle 2, restoring the adjusting handle 2 to the original position under the action of the torsion spring 25, and abutting the limiting disc 6 on the limiting bolt 3; in the utility model, the weight of the transmission block 17 is reduced by the arrangement of the transmission support ring 16, the transmission support ring 16 can be lifted upwards without large force, and the rotation of the main shaft 11 can be driven manually and electrically independently; the testing of the rotation angle of the main shaft 11 is realized through the combined arrangement of the encoder 8, the testing bevel gear 10 and the driving bevel gear 12, and the angle control of the main shaft 11 is facilitated; can be used as an electric actuator.

The present invention is not limited to the above embodiments, and based on the technical solutions disclosed in the present invention, those skilled in the art can make some replacements and transformations for some technical features without creative labor according to the disclosed technical contents, and these replacements and transformations are all within the protection scope of the present invention.

Claims

1. The utility model provides an electric actuator, includes the casing, casing outside fixedly connected with motor, the transmission is connected with the worm on the motor, rotationally is connected with the main shaft on the casing, is connected with the transmission piece on the main shaft, be connected with the worm wheel on the main shaft, worm and worm wheel cooperation, the worm wheel is connected with the transmission of transmission piece, and the transmission piece can go up and down along the worm wheel, and the transmission piece drives the main shaft and rotates its characterized in that: the inner wall of the shell is fixedly connected with a transmission supporting rod, the transmission block is sleeved with a transmission supporting ring, the transmission supporting ring is arranged between the transmission block and a worm wheel, the transmission supporting ring is sleeved on the transmission supporting rod, the outer side of the transmission block is provided with a clamping jaw, a plurality of transmission pins are distributed on the worm wheel, the transmission pins upwards extend out of the worm wheel, the transmission pins can be contacted with the clamping jaw, the upper part of the main shaft is connected with a hand wheel, the main shaft above the transmission block is connected with a clamping plate, the main shaft is sleeved with a spring, the upper end of the spring is abutted against the lower side of the clamping plate, the lower end of the spring is abutted against one side of the transmission block upwards, the side part of the shell is rotatably connected with an adjusting handle, one end of the adjusting handle is arranged outside the shell, the other, the adjusting handle extending into the shell is connected with a torsional spring.

2. The electric actuator of claim 1, wherein: the testing device is characterized in that a control shell with a control cavity is fixedly connected outside the shell, an encoder is installed in the control shell and fixed outside the shell, a sensing shaft of the encoder extends into the shell, a testing bevel gear is connected to the sensing shaft, a driving bevel gear is connected to the lower portion of the main shaft, and the driving bevel gear is meshed with the testing bevel gear.

3. The electric actuator according to claim 1 or 2, characterized in that: the transmission support rod is provided with limiting holes at one end extending upwards, limiting steps are arranged on the transmission support rod, and the transmission support ring is arranged between the limiting holes at the limiting steps.

4. The electric actuator according to claim 1 or 2, characterized in that: the transmission block is connected with the main shaft through a key.