CN213685156U

CN213685156U - Linear motion mechanism

Info

Publication number: CN213685156U
Application number: CN202022402615.0U
Authority: CN
Inventors: 石国玉; 陈功俊; 陈�峰; 杨禹
Original assignee: Nanjing Superyears Gene Technology Co ltd
Current assignee: Nanjing Superyears Gene Technology Co ltd
Priority date: 2020-10-26
Filing date: 2020-10-26
Publication date: 2021-07-13
Anticipated expiration: 2030-10-26

Abstract

The utility model relates to a linear motion mechanism, including the backplate, the rack, first pivot, first gear, the follower, action wheel and wind spring, the backplate is vertical to be set up, the horizontal and rotatable interlude of first pivot sets up in the backplate left side, first gear cover is established and is fixed at the rear end of first pivot and is located the rear side of backplate, the follower cover is established and is fixed at the front end of first pivot and is located the front side of backplate, the rack is horizontal to be located the rear side top of backplate, the downside meshing of rack is at the upside of first gear, the rotatable connection of action wheel is in the front side of backplate and is located the right side below of follower, one end of wind spring is fixed on the follower, the other end winding of wind spring is on the action wheel and opposite with the torsion direction; the utility model has simple structure and small volume, and utilizes the potential energy of the coil spring to drive the rack to move linearly without the help of external energy, thus the energy consumption is lower; and the movement speed of the rack is reduced by the damping component so as to have a larger application range.

Description

Linear motion mechanism

Technical Field

The utility model relates to a linear motion mechanism.

Background

The path through which the moving object passes is called the motion track of the object, and the motion track is a linear motion called a linear motion; the linear motion under the prior art condition mainly has two modes, one mode is to directly drive an object to perform linear motion by using an air cylinder, and the other mode is to realize the linear motion of the object by means of the mutual matching of a motor, a gear and a rack, although the first mode has a simple structure, the stroke motion speed cannot be controlled, and the application range is small; the second mode can be matched with a plurality of groups of gears to reduce the movement speed, but has a complex structure and larger volume; and both modes need to be driven by electric energy, so that the energy consumption is relatively high and further improvement is needed.

SUMMERY OF THE UTILITY MODEL

To the current situation of above-mentioned prior art, the utility model aims to solve the technical problem that a simple structure is provided, and is small, and the energy consumption is lower, and possesses great application scope's linear motion mechanism.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: the utility model provides a linear motion mechanism, its characterized in that, includes backplate, rack, first pivot, first gear, follower, action wheel and coil spring, the vertical setting of backplate, the horizontal and rotatable interlude of first pivot sets up in the backplate left side, the rear side at the rear end of first pivot and locating the backplate is established to first gear cover, the front end at first pivot and locating the front side of backplate are established to the follower cover, the horizontal rear side top of locating the backplate of rack, the downside meshing of rack is at the upside of first gear, the rotatable connection of action wheel is in the front side of backplate and locates the right side below of follower, the one end of coil spring is fixed on the follower, the other end winding of coil spring is on the action wheel and opposite with torsion direction.

Preferably, the device further comprises a damping assembly, wherein the damping assembly comprises a second rotating shaft, a second gear and a damper; the horizontal and rotatable interlude of second pivot sets up in the backplate left side and locates the below of first pivot, the rear side at the rear end of second pivot and locate the backplate is established to the second gear cover, the upside of second gear and the downside intermeshing of first gear, the front side at the backplate is fixed to the attenuator, the front end of second pivot links to each other with the damping axle of attenuator.

Preferably, a first sliding groove is formed in the upper portion of the rear side of the back plate, correspondingly, a first inserting strip is formed outwards on the front side of the rack, and the first inserting strip is inserted into the first sliding groove and can slide left and right along the first sliding groove.

Preferably, a top plate is formed backwards on the upper side of the back plate, a second inserting strip is formed outwards on the lower side of the top plate, correspondingly, a second inserting groove is formed in the upper side of the rack, and the second inserting strip is inserted into the second inserting groove and can slide left and right along the second inserting groove.

Preferably, a microswitch is further fixed at the right end of the rear side of the back plate, and a moving contact of the microswitch is matched with the right end of the rack.

Compared with the prior art, the utility model has the advantages of: the utility model has simple structure and small volume, and utilizes the potential energy of the coil spring to drive the rack to move linearly without the help of external energy, thus the energy consumption is lower; and the movement speed of the rack is reduced by the damping component so as to have a larger application range.

Drawings

FIG. 1 is a front view structural diagram of the present invention;

FIG. 2 is a left side view of the structure of the present invention;

fig. 3 is a rear view structural diagram of the present invention.

Detailed Description

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by those of ordinary skill in the art to which the invention belongs. The use of "first," "second," and similar terms in the description herein do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

To maintain the following description of the embodiments of the present invention clear and concise, detailed descriptions of well-known functions and components may be omitted.

As shown in fig. 1 to 3, a linear motion mechanism, including backplate 1, rack 10, first pivot 3, first gear 5, driven wheel 4, action wheel 6 and coil spring 7, backplate 1 is vertical to be set up, the horizontal and rotatable interlude of first pivot 3 sets up in backplate 1 left side, first gear 5 overlaps to be established and fixes the rear end at first pivot 3 and locate the rear side of backplate 1, driven wheel 4 overlaps to be established and fixes the front end at first pivot 3 and locate the front side of backplate 1, rack 10 transversely locates the rear side top of backplate 1, the downside meshing of rack 10 is in the upside of first gear 5, action wheel 6 is rotatable to be connected in the front side of backplate 1 and locates the right side below of driven wheel 4, the one end of coil spring 7 is fixed on driven wheel 4, the other end winding of coil spring 7 is on action wheel 6 and opposite with the torsion direction.

The linear motion mechanism further comprises a damping assembly, wherein the damping assembly comprises a second rotating shaft 12, a second gear 2 and a damper 9; the second rotating shaft 12 is transversely and rotatably inserted into the left side of the back plate 1 and is arranged below the first rotating shaft 3, the second gear 2 is sleeved and fixed at the rear end of the second rotating shaft 12 and is arranged on the rear side of the back plate 1, the upper side of the second gear 2 is meshed with the lower side of the first gear 5, the damper 9 is fixed on the front side of the back plate 1, and the front end of the second rotating shaft 12 is connected with a damping shaft of the damper 9.

A first sliding groove 101 is formed above the rear side of the back plate 1, correspondingly, a first inserting strip 1002 is formed outwards on the front side of the rack 10, and the first inserting strip 1002 is inserted into the first sliding groove 101 and can slide left and right along the first sliding groove 101.

The upper side of the back plate 1 is formed with a top plate 102 backwards, the lower side of the top plate 102 is formed with a second insert 103 outwards, correspondingly, the upper side of the rack 10 is opened with a second insert slot 1001, and the second insert 103 is inserted into the second insert slot 1001 and can slide left and right along the second insert slot 1001.

The right end of the rear side of the back plate 1 is also fixed with a microswitch 11, and a moving contact of the microswitch 11 is matched with the right end of the rack 10.

Before use, as the other end of the coil spring 7 is wound on the driving wheel 6 and is opposite to the direction of the torsion, once the driving wheel 6 is loosened, the coil spring 7 can generate a clockwise rotating torsion on the driven wheel 4 to drive the driven wheel 4 to rotate clockwise, and further drive the first gear 5 to rotate clockwise by virtue of the first rotating shaft 3, so as to drive the rack 10 to move linearly right until the right end of the rack 10 is contacted with a moving contact of the microswitch 11, and further trigger the relevant electrical components to act by virtue of the microswitch 11; when the rack 10 moves, the first inserting strip 1002 and the second inserting strip 103 slide rightwards along the first sliding groove 101 and the second inserting groove 1001 respectively, so that the straightness of the linear motion of the rack 10 is ensured; the rotation of the first gear 5 drives the second rotating shaft 12 to rotate by virtue of the second gear 2, but due to the existence of the damper 9, the damper 9 can slow down the rotating speed of the second rotating shaft 12, further slow down the rotating speed of the first gear 5, and further slow down the moving speed of the rack 10; after the coil spring 7 is completely released, the driving wheel 6 is rotated clockwise to rewind the coil spring 7, and then the driven wheel 4 is driven to rotate anticlockwise, so that the rack 10 is driven to move left to reset according to the same principle, and a cycle is formed.

The utility model has simple structure and small volume, and utilizes the potential energy of the coil spring 7 to drive the rack 10 to move linearly without the help of external energy, thus the energy consumption is lower; and the movement speed of the rack bar 10 is slowed down by the damping assembly to have a wide application range.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that various changes in the embodiments and modifications thereof may be made, and equivalents may be substituted for elements thereof; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. The utility model provides a linear motion mechanism, its characterized in that, includes backplate, rack, first pivot, first gear, follower, action wheel and coil spring, the vertical setting of backplate, the horizontal and rotatable interlude of first pivot sets up in the backplate left side, the rear side at the rear end of first pivot and locating the backplate is established to first gear cover, the front end at first pivot and locating the front side of backplate are established to the follower cover, the horizontal rear side top of locating the backplate of rack, the downside meshing of rack is at the upside of first gear, the rotatable connection of action wheel is in the front side of backplate and locates the right side below of follower, the one end of coil spring is fixed on the follower, the other end winding of coil spring is on the action wheel and opposite with torsion direction.

2. The linear motion mechanism of claim 1, further comprising a damping assembly, the damping assembly comprising a second shaft, a second gear, and a damper; the horizontal and rotatable interlude of second pivot sets up in the backplate left side and locates the below of first pivot, the rear side at the rear end of second pivot and locate the backplate is established to the second gear cover, the upside of second gear and the downside intermeshing of first gear, the front side at the backplate is fixed to the attenuator, the front end of second pivot links to each other with the damping axle of attenuator.

3. The linear motion mechanism as claimed in claim 1, wherein a first sliding slot is defined above the rear side of the back plate, and correspondingly, a first inserting bar is outwardly formed at the front side of the rack, and the first inserting bar is inserted into the first sliding slot and can slide left and right along the first sliding slot.

4. The linear motion mechanism as claimed in claim 1, wherein a top plate is formed on the upper side of the back plate backward, a second insertion strip is formed on the lower side of the top plate outward, correspondingly, a second insertion slot is formed on the upper side of the rack, and the second insertion strip is inserted into the second insertion slot and can slide left and right along the second insertion slot.

5. The linear motion mechanism as claimed in claim 1, wherein a micro switch is further fixed to the right end of the rear side of the back plate, and a moving contact of the micro switch is engaged with the right end of the rack.