CN216959559U

CN216959559U - Telescopic motor based on spring transmission

Info

Publication number: CN216959559U
Application number: CN202220241905.8U
Authority: CN
Inventors: 张�浩
Original assignee: Shandong Huirong Electronic Equipment Co ltd
Current assignee: Shandong Huirong Electronic Equipment Co ltd
Priority date: 2022-01-29
Filing date: 2022-01-29
Publication date: 2022-07-12
Anticipated expiration: 2032-01-29

Abstract

The utility model provides a spring transmission-based telescopic motor which comprises a shell with openings at two ends, a driving motor, a lock cylinder and a spring, wherein the driving motor, the spring and the lock cylinder are all positioned in the shell and are sequentially distributed along the length direction of the shell, the axis direction of the spring is consistent with the axis direction of an output shaft of the driving motor, the lock cylinder can slide in a reciprocating manner along the length direction of the shell and penetrates out of the shell, the spring is fixed relative to the lock cylinder, the driving motor is fixed relative to the shell, a pin which is consistent with the radial direction of a main shaft is installed on the output shaft of the driving motor, and the pin can be screwed into adjacent rings of the spring. The whole telescopic motor is simple in structure, stable in performance and short in movement stroke time.

Description

Telescopic motor based on spring transmission

Technical Field

The utility model relates to the technical field of telescopic motors, in particular to a spring transmission-based telescopic motor.

Background

The telescopic motor is an electric driving device which converts the rotary motion of a motor into the linear reciprocating motion of a push rod, can be used as an execution machine in various simple or complex process flows, for example, as a motion driving unit in industries such as household appliances, kitchen ware, medical instruments and automobiles, and can also be used as a lock cylinder of a mechanical lock.

The telescopic motor mainly comprises a driving motor, a reduction gearbox and a screw nut transmission assembly, the motor drives a screw rod arranged in an inner pipe after passing through a reduction gear in the reduction gearbox, the screw nut connected with the motor is driven to move axially, and telescopic effect is achieved.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a spring transmission-based telescopic motor which is simple in structure and short in movement stroke time, and can greatly reduce the requirement on machining precision and reduce the risk of clamping aiming at the defects of the prior art.

In order to achieve the purpose, the technical scheme of the utility model is that the spring transmission-based telescopic motor comprises a shell with openings at two ends, a driving motor, a lock cylinder and a spring, wherein the driving motor, the spring and the lock cylinder are all positioned in the shell and are sequentially distributed along the length direction of the shell, the axis direction of the spring is consistent with the axis direction of an output shaft of the driving motor, the lock cylinder can slide back and forth along the length direction of the shell and penetrates out of the shell, the spring is fixed relative to the lock cylinder, the driving motor is fixed relative to the shell, a pin consistent with the radial direction of a main shaft is installed on the output shaft of the driving motor, and the pin can be screwed into an adjacent ring of the spring.

Specifically, the lock cylinder comprises a mandrel and a sleeve which is integrally formed with the mandrel, the spring is installed in the sleeve, and the sleeve at least has a part of outer wall matched with the shape of the inner wall of the shell.

Specifically, be provided with the spout that extends along shell length direction on the shell, the length of spout is less than the length of shell, and is corresponding, install the slider that sets up along the radial direction of lock core on the lock core.

Specifically, the sliding groove radially penetrates through the shell, and the sliding block extends out of the side wall.

Specifically, the spout is kept away from the one end opening of lock core, and the width of opening is greater than the width of slider.

A based on spring drive's flexible motor that obtains through above-mentioned technical scheme, its beneficial effect is:

compared with the traditional telescopic motor with the gear box, the structure is simple, the installation is convenient, the cost is low, the risk of clamping is avoided, and the reliability is high; the movement travel time is greatly shortened, and the user experience is improved.

Drawings

Fig. 1 is a schematic perspective view of the spring-drive-based telescopic motor.

Fig. 2 is a schematic structural diagram of the spring transmission mechanism.

Fig. 3 is a schematic view of the structure of the inside of the housing.

In the figure, a housing 1; a chute 11; a drive motor 2; an output shaft 21; a spring 3; a lock cylinder 4; a mandrel 41; a sleeve 42; a slider 43; a pin 5.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the connection may be direct or indirect via an intermediate medium, and may be a communication between the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The present invention will be described in detail below with reference to the accompanying drawings.

As shown in the figure, the telescopic motor based on spring transmission comprises a shell 1 with openings at two ends and a spring transmission mechanism located inside the shell 1, wherein the spring transmission mechanism comprises a driving motor 2, a lock cylinder 4 and a spring 3 which are sequentially arranged along the length direction of the shell 1, the axis direction of the spring 3 is consistent with the axis direction of an output shaft 21 of the driving motor 2, the spring 3 is fixed on the lock cylinder 4, the lock cylinder 4 can slide in a reciprocating mode along the length direction of the shell 1 and penetrates out of the outlet end of the shell 1, the driving motor 2 is fixed relative to the shell 1, the output shaft 21 is a lengthened main shaft, a pin 5 consistent with the radial direction of the main shaft is installed on the output shaft 21, and the pin 5 can be screwed into an adjacent ring of the spring 3, so that the spring 3 can do linear motion along with the rotation of the output shaft 21, and further the lock cylinder 4 is pushed to do linear motion.

Specifically, the lock core 4 comprises a core shaft 41 and a sleeve 42 integrally formed with the core shaft 41, the spring 3 is installed in the sleeve 42, the sleeve 42 at least has a partial outer wall matched with the shape of the inner wall of the housing 1 so as to prevent the lock core 4 from moving in the radial direction of the lock core 4 in the housing 1, and when the pin shaft drives the spring 3 to move, the output shaft 21 of the driving motor 2 is inserted into the sleeve 42.

In order to guarantee the movement of the lock cylinder 4 along the length direction of the shell 1 and avoid the rotation of the lock cylinder 4, the shell 1 is provided with a sliding groove 11 extending along the length direction of the shell 1, the length of the sliding groove 11 is smaller than that of the shell 1, correspondingly, the lock cylinder 4 is provided with a sliding block 43 arranged along the radial direction of the lock cylinder 4, and particularly, the sliding block 43 is arranged on the sleeve.

In order to conveniently observe the stroke dynamic state of the lock cylinder 4, the sliding groove 11 radially penetrates through the shell 1, the sliding block 43 extends out of the side wall, and the stroke of the lock cylinder 4 can be determined by observing the position of the sliding block 43.

In order to facilitate the installation of the sliding block 43 with the lock cylinder 4, one end of the sliding groove 11 far away from the lock cylinder 4 is opened, and the width of the opening is larger than that of the sliding block 43.

The installation process and the operation principle of the entire spring 3-based telescopic motor are described in detail below.

During installation, the spring 3 is assembled in the sleeve 42 of the lock cylinder 4, then the output shaft 21 of the driving motor 2 is inserted into the spring 3, the spring 3 or the driving motor 2 is rotated, the pin shaft on the output shaft 21 is screwed into two adjacent circles of the spring 3, finally, the spring transmission mechanism is integrally assembled inside the shell 1, the driving motor 2 is fixed in the shell, the inlet end of the shell is plugged, and the installation is completed.

The driving motor 2 rotates, the pin 5 on the output shaft 21 can move along the gap of the spring 3, because the driving motor 2 is fixed relative to the shell 1, the spring 3 moves relatively, the lock cylinder 4 is driven to move synchronously, and can only do linear motion along the length direction of the shell 1 under the limitation of the chute 11, the starting and stopping positions of the motion of the lock cylinder 4 are respectively determined by the driving motor 2 and the chute 11, when the lock cylinder 4 extends out of the shell 1, the sliding block 43 arranged on the lock cylinder 4 is limited by the end part of the chute 11, and when the lock cylinder retracts into the shell 1, the sleeve 42 is limited by the motor, thereby achieving the purpose of stroke control.

The technical solutions described above only represent the preferred technical solutions of the present invention, and some possible modifications to some parts of the technical solutions by those skilled in the art all represent the principles of the present invention, and fall within the protection scope of the present invention.

Claims

1. The utility model provides a flexible motor based on spring drive, a serial communication port, including both ends open-ended shell, driving motor, lock core and spring, driving motor, spring and lock core all are located the shell inside and distribute in proper order along shell length direction, wherein the axis direction of spring is unanimous with driving motor's output shaft axis direction, the lock core can be followed the length direction reciprocating sliding of shell and worn out the shell, the spring is fixed for the lock core, driving motor is fixed for the shell, install the pin unanimous with the radial direction of main shaft on driving motor's the output shaft, the pin can be screwed in the adjacent circle of spring.

2. The spring-drive-based telescopic motor according to claim 1, wherein the lock cylinder comprises a spindle and a sleeve connected with the spindle, the spring is mounted in the sleeve, and the sleeve has at least a part of an outer wall matched with the shape of the inner wall of the housing.

3. The spring-drive-based telescopic motor according to claim 1, wherein the housing is provided with a sliding groove extending along a length direction of the housing, the length of the sliding groove is smaller than that of the housing, and correspondingly, the lock cylinder is provided with a sliding block arranged along a radial direction of the lock cylinder.

4. The spring-drive-based telescopic motor according to claim 3, wherein the sliding groove radially penetrates through the housing, and the sliding block extends out of the side wall.

5. The spring-drive-based telescopic motor according to claim 3, wherein an end of the sliding groove, which is far away from the lock cylinder, is opened, and the width of the opening is larger than that of the sliding block.