CN215120515U

CN215120515U - Concentric three-drive-shaft micro stepping motor

Info

Publication number: CN215120515U
Application number: CN202120377661.1U
Authority: CN
Inventors: 吕朝峰
Original assignee: Jiangsu Kaifeng Electronic Technology Co ltd
Current assignee: Jiangsu Kaifeng Electronic Technology Co ltd
Priority date: 2021-02-18
Filing date: 2021-02-18
Publication date: 2021-12-10
Anticipated expiration: 2031-02-18

Abstract

The utility model relates to the technical field of motors, and discloses a concentric three-drive-shaft micro stepping motor, which comprises a motor main body, an inner shaft, a middle shaft and an outer shaft, wherein the inner shaft, the middle shaft and the outer shaft are arranged at the top of the motor main body; chucking mechanism includes movable plate, slide bar, presses clamp plate, spring, connecting rod and fixture block, the movable plate is the vertical inside that is located the protective cover, the slide bar is the symmetry and fixes setting up on the side of movable plate, two the other end of slide bar all runs through to the outside of protective cover and with the side fixed connection who presses the clamp plate. The utility model discloses a protection machanism, the dust of avoiding external world gets into to cause the phenomenon of pollution in the clearance of interior axle, axis and outer axle.

Description

Concentric three-drive-shaft micro stepping motor

Technical Field

The utility model relates to the technical field of motors, especially, relate to three drive shaft miniature step motor with one heart.

Background

The known stepping motors for the meters have two types of single driving shafts and double driving shafts, but in practical application, the stepping motors for the meters which need three concentric driving shafts are often needed, for example, a digital pointer clock needs to indicate the pointers of a clock, a minute and a second clock simultaneously, a plurality of multi-parameter digital meters also need to indicate the temperature, humidity and pressure parameters which are measured in real time simultaneously, and the micro stepping motors with three driving shafts in a concentric structure are quite widely applied to the field of the digital pointer meters.

The driving shafts of the existing miniature stepping motors with three driving shafts are exposed outside, gaps exist among the three driving shafts, and the phenomenon that dust enters and pollutes easily occurs when the miniature stepping motors are not used or stored. Therefore, the utility model provides a three drive shaft miniature step motor with one heart.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving among the prior art miniature step motor's of three drive shaft and exposing externally, and there is the clearance between the three drive shaft, when not using or the in-process of preserving appear the dust easily and get into the problem of pollution, and the miniature step motor of concentric three drive shafts that proposes.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the miniature stepping motor with the three concentric driving shafts comprises a motor main body, and an inner shaft, a middle shaft and an outer shaft which are arranged at the top of the motor main body, wherein end face convex rings are fixedly arranged at the top of the motor main body and positioned at the outer sides of the outer shaft;

chucking mechanism includes movable plate, slide bar, presses clamp plate, spring, connecting rod and fixture block, the movable plate is the vertical inside that is located the protective cover, the slide bar is the symmetry and fixes setting up on the side of movable plate, two the other end of slide bar all runs through to the outside of protective cover and with the side fixed connection who presses the clamp plate, the spring is the symmetry and fixes setting up on the side of movable plate, and the other end of spring and the inner wall fixed connection of protective cover, the connecting rod is vertical fixed the downside that sets up in the movable plate, the fixture block is fixed to be set up on the pole wall of connecting rod, the upside of terminal surface bulge loop is seted up and is used for the bar groove that the connecting rod stretched into, and the lateral wall in bar groove set up with fixture block matched with draw-in groove.

Preferably, the fixed spacing slider that is equipped with of inside wall bottom symmetry of protective cover, the spacing spout with spacing slider matched with is seted up to the inside wall of protective cover.

Preferably, the fixed rubber sleeve that is equipped with of top inner wall of protective cover, the slot with interior axle, axis and outer axle matched with is seted up to the downside of rubber sleeve.

Preferably, the side wall of the pressing plate is fixedly provided with a pressing pad, and the side surface of the pressing pad is provided with a protruding arc-shaped end surface.

Preferably, finger grooves are formed in the left side and the right side of the protective cover.

Preferably, the protecting cover is made of non-metal material.

Compared with the prior art, the utility model provides a three drive shaft miniature step motor with one heart possesses following beneficial effect:

1. the concentric three-drive-shaft micro stepping motor can avoid the phenomenon of pollution caused by external dust entering gaps among the inner shaft, the middle shaft and the outer shaft through the protective covers arranged outside the inner shaft, the middle shaft and the outer shaft.

2. This three concentric drive shaft miniature step motor through movable plate, slide bar, the pressure clamp plate that is equipped with, spring, connecting rod and fixture block, can be fixed with the joint between protective cover and the terminal surface bulge loop, also be convenient for simultaneously dismantle protective cover and terminal surface bulge loop.

The part that does not relate to among the device all is the same with prior art or can adopt prior art to realize, the utility model discloses a protection machanism avoids external dust to get into to cause the phenomenon of pollution in the clearance of interior axle, axis and outer axle.

Drawings

Fig. 1 is a schematic structural view of a concentric three-drive-shaft micro stepping motor according to the present invention;

fig. 2 is an enlarged view of a portion a of fig. 1.

In the figure: the device comprises a motor main body 1, an inner shaft 2, a middle shaft 3, an outer shaft 4, an end face convex ring 5, a protective cover 6, a moving plate 7, a sliding rod 8, a pressing plate 9, a spring 10, a connecting rod 11, a clamping block 12, a finger groove 13, a limiting sliding block 14, a rubber sleeve 15 and a pressing pad 16.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-2, the concentric three-drive-shaft micro stepping motor comprises a motor main body 1, and an inner shaft 2, a middle shaft 3 and an outer shaft 4 which are arranged at the top of the motor main body, wherein an end face convex ring 5 is fixedly arranged at the top of the motor main body 1 and positioned at the outer side of the outer shaft 4, protective covers 6 are arranged outside the inner shaft 2, the middle shaft 3 and the outer shaft 4, and clamping mechanisms connected with the end face convex ring 5 are arranged at the left side and the right side of each protective cover 6;

chucking mechanism includes movable plate 7, slide bar 8, press platen 9, spring 10, connecting rod 11 and fixture block 12, movable plate 7 is the vertical inside that is located protective cover 6, slide bar 8 is the symmetry and fixes and set up on movable plate 7's side, two slide bar 8's the other end all run through to protective cover 6 the outside and with the side fixed connection who presses platen 9, spring 10 is the symmetry and fixes and set up on movable plate 7's side, and spring 10's the other end and protective cover 6's inner wall fixed connection, connecting rod 11 is vertical fixed the downside that sets up in movable plate 7, fixture block 12 is fixed to be set up on connecting rod 11's pole wall, the bar groove that is used for connecting rod 11 to stretch into is offered to the upside of terminal surface bulge loop 5, and the draw-in groove with fixture block 12 matched with has been offered to the lateral wall in bar groove.

The fixed spacing slider 14 that is equipped with of inside wall bottom symmetry of protective cover 6, the spacing spout with spacing slider 14 matched with is seted up to the inside wall of protective cover 6.

The rubber sleeve 15 is fixedly arranged on the inner wall of the top of the protective cover 6, and slots matched with the inner shaft 2, the middle shaft 3 and the outer shaft 4 are formed in the lower side of the rubber sleeve 15, so that the inner shaft 2, the middle shaft 3 and the outer shaft 4 can be sealed and protected.

The side wall of the pressing plate 9 is fixedly provided with a pressing pad 16, and the side surface of the pressing pad 16 is provided with a protruding arc-shaped end surface, so that the pressing plate 9 can be conveniently pressed by a hand.

Finger grooves 13 are formed in the left side and the right side of the protective cover 6, and the protective cover 6 is made of non-metal materials.

In the utility model, when in use, the protective cover 6 is inserted into the outer parts of the inner shaft 2, the middle shaft 3 and the outer shaft 4, the rubber sleeve 15 is inserted into the outer parts of the inner shaft 2, the middle shaft 3 and the outer shaft 4, the limit sliding groove on the protective cover 6 is inserted into the limit sliding block 14, then simultaneously pressing the pressing plates 9 on the two sides to ensure that the pressing plates 9 drive the moving plate 7 to move through the slide bar 8, the moving plate 7 drives the fixture block 12 to move through the connecting rod 11, then inserting the connecting rod 11 into the strip-shaped groove on the end face convex ring 5, after the hand leaves the pressing plates 9 on the two sides, at the moment, the action of the spring 10 exerts external force on the moving plate 7 and drives the clamping block 12 on the connecting rod 11 to be clamped and matched with the clamping groove, therefore, the protective cover 6 and the end face convex ring 5 are fixedly connected, and the phenomenon that external dust enters the gap between the inner shaft 2, the middle shaft 3 and the outer shaft 4 to cause pollution can be avoided.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The concentric three-drive-shaft micro stepping motor comprises a motor main body (1), an inner shaft (2), a middle shaft (3) and an outer shaft (4) which are arranged at the top of the motor main body, and is characterized in that an end face convex ring (5) is fixedly arranged at the top of the motor main body (1) and positioned at the outer side of the outer shaft (4), protective covers (6) are arranged outside the inner shaft (2), the middle shaft (3) and the outer shaft (4), and clamping mechanisms connected with the end face convex ring (5) are arranged on the left side and the right side of each protective cover (6);

the clamping mechanism comprises a movable plate (7), a slide rod (8), a pressing plate (9), a spring (10), a connecting rod (11) and a clamping block (12), the movable plate (7) is vertically positioned in a protective cover (6), the slide rod (8) is symmetrically and fixedly arranged on the side face of the movable plate (7), the other ends of the slide rod (8) penetrate through the outer part of the protective cover (6) and are fixedly connected with the side face of the pressing plate (9), the spring (10) is symmetrically and fixedly arranged on the side face of the movable plate (7), the other end of the spring (10) is fixedly connected with the inner wall of the protective cover (6), the connecting rod (11) is vertically and fixedly arranged on the lower side of the movable plate (7), the clamping block (12) is fixedly arranged on the rod wall of the connecting rod (11), a strip-shaped groove for the connecting rod (11) to stretch into is arranged on the upper side of the end face convex ring (5), and the side wall of the strip-shaped groove is provided with a clamping groove matched with the clamping block (12).

2. The concentric micro stepper motor with three driving shafts as claimed in claim 1, wherein the bottom of the inner sidewall of the protecting cover (6) is symmetrically and fixedly provided with a limiting slider (14), and the inner sidewall of the protecting cover (6) is provided with a limiting sliding slot matched with the limiting slider (14).

3. The concentric three-driving-shaft micro stepping motor according to claim 1, wherein a rubber sleeve (15) is fixedly arranged on the inner wall of the top of the protective cover (6), and slots matched with the inner shaft (2), the middle shaft (3) and the outer shaft (4) are formed in the lower side of the rubber sleeve (15).

4. The micro stepping motor with three concentric driving shafts as claimed in claim 1, wherein a pressing pad (16) is fixedly arranged on the side wall of the pressing plate (9), and the side surface of the pressing pad (16) is arranged in a protruding arc-shaped end surface.

5. The concentric three-driving shaft micro stepping motor according to claim 1, wherein finger grooves (13) are formed on both left and right sides of the protective cover (6).

6. The concentric three-drive shaft micro stepper motor according to claim 1, wherein the protective cover (6) is made of non-metallic material.