CN220929597U

CN220929597U - Linear motion mechanism driven by memory alloy spring

Info

Publication number: CN220929597U
Application number: CN202322977900.9U
Authority: CN
Inventors: 吴天萌; 王双银; 曹海峰
Original assignee: Wuhan Textile University
Current assignee: Wuhan Textile University
Priority date: 2023-11-05
Filing date: 2023-11-05
Publication date: 2024-05-10
Anticipated expiration: 2033-11-05

Abstract

The utility model discloses a linear motion mechanism driven by a memory alloy spring, which comprises an air inlet fan, a dust cover, a base, a motion slide block, an air outlet fan, a left spring fixing shaft, a left wire, a middle wire, an electrode, a right wire, a right spring fixing shaft, a left memory alloy spring and a right memory alloy spring, wherein an inner cavity is formed between the dust cover and the base, the inner cavity is communicated with the air inlet fan and the air outlet fan, the motion slide block is slidably arranged on the base, two ends of the left wire are respectively connected with the left end and a first electrode of the left memory alloy spring, two ends of the right wire are respectively connected with the right end and a second electrode of the right memory alloy spring, one end of the middle wire is respectively connected with the right end of the left memory alloy spring and the left end of the right memory alloy spring, and the other end of the middle wire is connected with a third electrode. The left-right movement of the moving slide block is realized through the on-off of the left memory alloy spring and the right memory alloy spring, so that the use effect is good and the noise is low.

Description

Linear motion mechanism driven by memory alloy spring

Technical Field

The utility model relates to the field of driving mechanisms, in particular to a linear motion mechanism driven by a memory alloy spring.

Background

At present, a motor-driven linear motion mechanism is generally adopted in the market, but the motor-driven thrust is smaller, the high thrust cost is high, the motor can shake, the noise can be larger, and the use effect is poor.

Shape Memory Alloy (SMA) is one of intelligent materials, which is cooled to low temperature after being shaped at high temperature, and is applied with external force to generate residual deformation, if the material is heated to a certain temperature, the residual deformation disappears, and the shape is restored to the inherent shape at high temperature, so that the shape memory alloy has shape memory effect as if the state at high temperature is remembered. The characteristic of the shape memory alloy enables the shape memory alloy to have the functions of self-sensing, self-diagnosis and self-adaption, namely the functions of a sensor, a controller and a driver, and compared with other intelligent materials, the Shape Memory Alloy (SMA) has great advantages and is gradually applied to the fields of various brakes, spacecraft antennas, pipeline connectors, medical surgical orthotics, medical materials and the like. The shape memory alloy is alternately electrified to raise and lower temperature by utilizing the shape memory effect of the shape memory alloy, so that the shape memory alloy can generate reciprocating motions of shortening and lengthening, and therefore, the shape memory alloy can be made into an electric driving element to replace the traditional hydraulic, motor or pneumatic devices and the like.

Disclosure of utility model

In order to overcome the defects of the prior art, one of the purposes of the utility model is to provide a linear motion mechanism driven by a memory alloy spring, which can solve the problem of poor use effect.

One of the purposes of the utility model is realized by adopting the following technical scheme:

The utility model provides a memory alloy spring driven rectilinear motion mechanism, includes air intake fan, shield, base, motion slider, air outlet fan, left side spring fixed axle, left side wire, middle wire, electrode, right wire, right side spring fixed axle, left memory alloy spring and right memory alloy spring, its characterized in that: the air inlet fan and the air outlet fan are respectively installed on two sides of the base, the dust cover is installed on the outer side of the base, an inner cavity is formed between the dust cover and the base, the inner cavity is communicated with the air inlet fan and the air outlet fan, the moving sliding block is slidably installed in the base, two ends of the moving sliding block are respectively fixedly connected with the left memory alloy spring and the right memory alloy spring, the left end of the left memory alloy spring is fixed on the base through the left spring fixing shaft, the right end of the right memory alloy spring is fixed on the base through the right spring fixing shaft, two ends of the left wire are respectively connected with the left end of the left memory alloy spring and the first electrode, two ends of the right wire are respectively connected with the right end of the right memory alloy spring and the second electrode, one end of the middle wire is respectively connected with the right end of the left memory alloy spring and the left end of the right memory alloy spring through the moving sliding block, and the other end of the middle wire is connected to the third electrode.

Further, the left memory alloy spring and the right memory alloy spring are positioned on two opposite sides of the moving sliding block, and the left memory alloy spring and the right memory alloy spring are positioned on the same straight line.

Further, the moving slide block is provided with a plurality of flange holes, and the flange holes are distributed at two ends of the moving slide block.

Further, the front side and the rear side of the moving slide block are provided with protruding blocks embedded into the slideways arranged on the front and the rear inner walls of the base, so that the moving slide block can slide left and right along the base.

Further, the middle part of the moving slide block is positioned in the inner cavity, and two sides of the upper end of the moving slide block extend out of the inner cavity.

Further, the bottom surface of the moving slide block is parallel to the upper surface of the inner side of the base.

Further, the base is provided with a left wire guide hole, a spring fixing shaft hole, a middle wire guide hole, a right wire guide hole and a dust cover screw hole, the left spring fixing shaft and the right spring fixing shaft are installed in the spring fixing shaft hole, the middle wire passes through the middle wire guide hole, the left wire passes through the left wire guide hole, and the right wire passes through the right wire guide hole.

Compared with the prior art, the utility model has the beneficial effects that:

The utility model is suitable for the scene with small moving stroke of the needed sliding block, has convenient use and low noise, and the fans are arranged at the air inlets and the air outlets at the two ends of the base, so that the device can be quickly cooled after the device is used, and the moving sliding block is provided with flange holes, thereby being convenient for installing the device to be driven according to the needs.

The foregoing description is only an overview of the present utility model, and is intended to be implemented in accordance with the teachings of the present utility model, as well as the preferred embodiments thereof, together with the following detailed description of the utility model, given by way of illustration only, together with the accompanying drawings.

Drawings

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

Fig. 2 is an internal perspective view of the present utility model after the dust cap is opened.

In the figure: 1. an air inlet fan; 2. the dust cover locks the screw; 3. a dust cover; 4. a base; 5. a flange hole; 6. a moving slide; 7. an air outlet fan; 8. a left spring fixing shaft; 9. a left wire guide; 10. a left side wire; 11. a spring fixing shaft hole; 12. a middle wire guide; 13. an intermediate wire; 14. an electrode; 15. a right wire; 16. a right wire guide; 17. a right spring fixing shaft; 18. a dust cap screw hole; 19. a left memory alloy spring; 20. right memory alloy spring.

Detailed Description

The present utility model will be further described with reference to the accompanying drawings and detailed description, wherein it is to be understood that, on the premise of no conflict, the following embodiments or technical features may be arbitrarily combined to form new embodiments.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When a component is considered to be "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1-2, a linear motion mechanism driven by a memory alloy spring comprises an air inlet fan 1, a dust cover 3, a base 4, a motion slide block 6, an air outlet fan 7, a left spring fixing shaft 8, a left wire 10, a middle wire 13, an electrode 14, a right wire 15, a right spring fixing shaft 17, a left memory alloy spring 19 and a right memory alloy spring 20, wherein the air inlet fan 1 and the air outlet fan 7 are respectively arranged at two sides of the base 4, the dust cover 3 is arranged on the base 4, an inner cavity is formed between the dust cover 3 and the base 4, the inner cavity is communicated with the air inlet fan 1 and the air outlet fan 7, the motion slide block 6 is slidably arranged on the base 4, two ends of the motion slide block 6 are respectively fixedly connected with the left memory alloy spring 19 and the right memory alloy spring 20, the left end of the left memory alloy spring 19 is fixedly arranged on the base 4 through the left spring fixing shaft 8, the right end of the right memory alloy spring 20 is respectively fixed on the left electrode fixing shaft 17, the right end of the memory alloy spring 20 is respectively connected with the two ends of the electrode 19 and the right electrode 20 through the left wire 17, the left end of the middle wire is respectively connected with the two ends of the electrode 20, and the electrode 20 is respectively connected with the two ends of the left electrode and the right electrode 20. The left-right movement of the moving slide block 6 is realized through the contraction or the extension of the left memory alloy spring 19 and the right memory alloy spring 20, so that the use effect is good and the noise is low.

In this embodiment, the memory alloy spring is a nickel-titanium alloy spring.

When the memory alloy spring 19 is electrified, the left memory alloy spring 19 contracts, and simultaneously the right memory alloy spring 20 is pulled to extend leftwards, at the moment, the moving slide block 6 moves leftwards, and the force is the resultant force of the springs on the left side and the right side; when a power supply is connected between the second electrode and the third electrode, power is supplied, the right memory alloy spring 20 is electrified, the right memory alloy spring 20 contracts, meanwhile, the left memory alloy spring 19 is pulled to extend to the right, at the moment, the moving slide block 6 moves to the right, and the force is the resultant force of the springs at the left side and the right side. Thus, the aim of driving the linear motion mechanism by using the memory alloy spring is fulfilled.

Preferably, the left memory alloy spring 19 and the right memory alloy spring 20 are located at opposite sides of the moving slide 6, and the left memory alloy spring 19 and the right memory alloy spring 20 are on the same straight line. The coaxial line solves the problem of deviation.

Preferably, the moving slide 6 is provided with a plurality of flange holes 5, and the flange holes 5 are distributed at two ends of the moving slide 6. The moving slide block 6 is T-shaped. The middle part of the moving slide block 6 is positioned in the inner cavity, and two sides of the upper end of the moving slide block 6 extend out of the inner cavity. Simple structure, easy production and processing, low cost and small noise.

Preferably, the moving slide 6 is parallel to the base 4. The base 4 is provided with a left wire guide 9, a spring fixing shaft hole 11, a middle wire guide 12, a right wire guide 16 and a dust cover screw hole 18, wherein the left spring fixing shaft 8 and the right spring fixing shaft 17 are installed in the spring fixing shaft hole 11, the middle wire 13 passes through the middle wire guide 12, the left wire 10 passes through the left wire guide 9, and the right wire 15 passes through the right wire guide 16. The mechanism further comprises a dust cover locking screw 2, and the dust cover locking screw 2 penetrates through the dust cover screw hole 18. Novel structure, design benefit, the suitability is strong, facilitate promotion.

The above embodiments are only preferred embodiments of the present utility model, and the scope of the present utility model is not limited thereto, but any insubstantial changes and substitutions made by those skilled in the art on the basis of the present utility model are intended to be within the scope of the present utility model as claimed.

Claims

1. A memory alloy spring driven linear motion mechanism is characterized in that: including air intake fan, shield, base, motion slider, air outlet fan, left side spring fixed axle, left side wire, interline, electrode, right wire, right side spring fixed axle, left side memory alloy spring and right side memory alloy spring, the air intake fan with the air outlet fan install respectively in the base both sides, the shield install in the base outside, the shield with form the inner chamber between the base, the inner chamber with air intake fan and air outlet fan intercommunication, motion slider slidable mounting in the base, the motion slider both ends respectively with left side memory alloy spring with right side memory alloy spring fixed connection, the left end of left side memory alloy spring is fixed in through left side spring fixed axle the base, the right end of right side memory alloy spring is fixed in through right side spring fixed axle the base, the both ends of left side wire respectively with the left end and the first electrode of left side memory alloy spring are connected, the both ends of right side wire respectively with the right end and second memory alloy spring are connected to the interline, the left side memory alloy spring and right end are connected to the other end through the interline, the motion slider is connected to the third end.

2. The memory alloy spring driven linear motion mechanism of claim 1, wherein: the left memory alloy spring and the right memory alloy spring are positioned on two opposite sides of the moving sliding block, and the axes of the left memory alloy spring and the right memory alloy spring are positioned on the same straight line.

3. The memory alloy spring driven linear motion mechanism of claim 1, wherein: the moving slide block is provided with a plurality of flange holes, and the flange holes are distributed at two ends of the moving slide block.

4. A memory alloy spring driven linear motion mechanism as set forth in claim 3 wherein: the front side and the rear side of the moving slide block are provided with protruding blocks embedded into horizontal slideways formed in the front and the rear inner walls of the base, so that the moving slide block can slide left and right along the base.

5. The memory alloy spring driven linear motion mechanism of claim 4, wherein: the middle part of the moving slide block is positioned in the inner cavity, and two sides of the upper end of the moving slide block extend out of the inner cavity.

6. The memory alloy spring driven linear motion mechanism of claim 1, wherein: the bottom surface of the moving slide block is parallel to the upper surface of the inner side of the base.

7. The memory alloy spring driven linear motion mechanism of claim 1, wherein: the base is equipped with left side wire guide, spring fixed shaft hole, middle wire guide, right wire guide and shield screw hole, left side spring fixed shaft with right side spring fixed shaft install in the spring fixed shaft hole, middle wire passes middle wire guide, left side wire passes left side wire guide, right side wire guide passes right side wire guide.