CN207218502U - A kind of electromagnetism retractor device - Google Patents

Abstract

A kind of electromagnetism retractor device, including the body that stretches, Coupling Shaft, spring pad, spring, telescopic shaft, thrust bearing, magnet coil, coil pad, Coupling Shaft is linked by square shaft and the square opening of telescopic shaft, telescopic shaft is positioned on the central axis of flexible body by spring pad and coil pad, spring is fixed between spring pad and thrust bearing, thrust bearing is fixed on the bearing position of flexible body over there close to magnet coil, magnet coil is fixed between thrust bearing and coil pad, coil pad is fixed in the telescopic machine body on the outside of magnet coil, telescopic shaft is completed flexible operation by magnet coil and spring and can rotated freely.Utilize a kind of electromagnetism retractor device of coil magnetic field gravitation traction iron core motion, slewing（Such as motor）By Coupling Shaft transmitting rotary power to telescopic shaft, axis connection of stretching actual job device（Such as drill bit or sleeve）, when magnet coil is powered, the magnetic field gravitation traction telescopic shaft of coil travels forward, and when magnet coil powers off, the elastic force of spring resets telescopic shaft, is achieved in the telescopic shaft of device and maintains rotary operation flexible while.

Description

A kind of electromagnetism retractor device

Technical field

A kind of device for reaching flexible purpose using electromagnetic force field is the utility model is related to, especially requires iron core flexible While also to ensure revolvable equipment.

Background technology

The requirement of my younger brother is answered, helps him to design a electronic automatic lock knife machine, and technological difficulties are exactly without suitable Electrical retractor makes sleeve be inserted on the screw terminal of screw rod.If directly using mechanical through transport, element precision requires high, typically Processing workshop can not produce, cost also just corresponding rise, and frictional force during use between part is relatively large, part matter itself Amount is also big, therefore very big load is caused to motor, and easily overheat, causes the life-span of part and motor to substantially reduce；Increase by one If auxiliary telescopic motor, the volume of lock knife machine can but increase the scope of application that a lot, significantly limit lock knife machine；Finally I Electromagnetism retractor device is contemplated, no matter but from network or on book, all do not find the flexible dress of the electromagnetism that can be used in locking knife machine Put, it is most of to be required for permanent magnet to coordinate, and can not accomplish that iron core guarantees to rotate flexible while, therefore oneself is devised This electromagnetism retractor device.

The content of the invention

In order to solve in the prior art that volume is big, part is more, manufacture difficulty and cost are high and meanwhile iron core do not possess it is flexible and The defects of spinfunction, the utility model provide a kind of simple in construction and main shaft rotatable electromagnetism retractor device.

Technical scheme is used by the utility model solves its technical problem：A kind of unicoil magnetic field gravitation traction iron core The retractor device of motion, including body, Coupling Shaft, telescopic shaft, spring pad, spring, thrust bearing, magnet coil and coil pad group Into slewing（Such as motor）By Coupling Shaft transmitting rotary power to telescopic shaft, axis connection of stretching actual job device（As bored Head or sleeve）, when magnet coil is powered, the magnetic field gravitation traction telescopic shaft of coil travels forward, when magnet coil powers off, spring Elastic force reset telescopic shaft, be achieved in the telescopic shaft of device and maintain rotary operation flexible while.

Above-mentioned electromagnetism retractor device, body should use aluminium alloy or other antimagnetic material manufactures, and inside processing is divided into activity Area, bearing position, coil area and external area.

Above-mentioned electromagnetism retractor device, Coupling Shaft outside one is processed according to slewing connected mode, with telescopic shaft One of connection is stretched into the square opening of telescopic shaft using square shaft, and size determines that length is according to reality according to maximum rotary torsion The maximal dilation stroke of border demand and maximum rotary torsion determine.

Above-mentioned electromagnetism retractor device, the square opening of telescopic shaft need to be more slightly larger than the square shaft of Coupling Shaft, ensures that telescopic shaft can be certainly By moving, depth is also more slightly longer than the length of Coupling Shaft, and bosom need to have the stomata on a straight-through telescopic shaft surface, avoid square The motion of affected by high telescopic shaft is formed in hole.Telescopic shaft original outer diameter is less than thrust bearing external diameter, more than in thrust bearing Footpath, since square opening, processing sequence be respectively spring pad screens, spring pad fixed area, spring region, stepped region, extension area and External position（Do not consider that spring pad can be cancelled if material cost, directly consolidate the spring pad screens on telescopic shaft and spring pad Determine area and be processed into spring screens）.Spring pad screens main function prevents spring pad, and from square opening, this head comes off, and external diameter keeps original External diameter, length determine according to flexible operation dynamics and material hardness；Spring pad fixed area is mainly used in fixed spring pad, external diameter with Thrust bearing internal diameter is identical, of length no more than spring mat thickness；Spring region is spring zone of action, and external diameter, which is necessarily less than, to be pushed away Power bearing bore diameter, length need the depth more than square opening；Stepped region is the main zone of action of magnetic field gravitation, and total length is not Less than maximal dilation stroke, external diameter equidistantly successively decreases, until equal with external position diameter；Extension area is directly through electromagnetism Coil and coil pad, diameter determine that surface needs smooth abrasion-proof by maximum rotary torsion during operation；External position is with directly making Industry equipment connects, and connects mouth according to implement and is processed.

Above-mentioned electromagnetism retractor device, spring pad main function are subject to spring force and fixed spring, and auxiliary telescopic Axle is stable, therefore the maximum elastic force of spring determines that spring side need to have recessed when part of the force thickness must be powered according to magnet coil Groove, groove internal diameter are equal to spring outer diameter, and depth is greater than spring diameter, and spring pad external diameter is slightly less than body internal diameter.

Above-mentioned electromagnetism retractor device, spring is mainly used in the reset retraction of telescopic shaft, therefore the elastic force of spring have to be larger than The summation of gravity suffered by telescopic shaft and direct operation equipment, length should be greater than the spring section length of telescopic shaft, and external diameter is less than body More than internal diameter 1mm, internal diameter are more than more than thrust bearing internal diameter 2mm, reduce spring as far as possible in the case where ensureing elastic force and length The number of turns（Reduce the length after spring-compressed）, the total length of device is reduced with this.

Above-mentioned electromagnetism retractor device, thrust bearing ensure internal diameter it is sufficiently large in the case of, should choose minimum external diameter and The model of thickness, the total length and volume of device are reduced with this.

Above-mentioned electromagnetism retractor device, magnet coil internal diameter need to be more than thrust bearing internal diameter, and coil magnetic field gravitation must after energization Spring must can be made to reach maximum compression.

Above-mentioned electromagnetism retractor device, coil pad are mainly used in the positioning of coil, prevent that coil displacement is impaired, while in not shadow Positioned in the case of ringing telescopic shaft work for telescopic shaft, therefore endoporus needs smooth abrasion-proof.

The beneficial effects of the utility model are, the utility model electromagnetism retractor device using the traction of unicoil magnetic field gravitation and The mode of spring auxiliary reset, telescopic shaft is freely rapidly stretched, while do not interfere with telescopic shaft rotary operation, than it His retractor device volume is smaller, and mechanical wear is less.

Brief description of the drawings

The utility model is further illustrated with reference to the accompanying drawings and examples.

Fig. 1 is the utility model schematic diagram.

Fig. 2 is the schematic diagram after the energization of electromagnetism retractor device in Fig. 1.

Fig. 3 is the schematic diagram of telescopic shaft 5 in Fig. 1.

1 in figure, flexible body, 2, Coupling Shaft, 3, spring pad, 4, spring, 5, telescopic shaft, 6, thrust bearing, 7, electromagnetic wire Circle, 8, coil pad, 9, square opening, 10, spring pad screens, 11, spring pad fixed area, 12, spring region, 13 stomatas, 14, ladder Area, 15, extension area, 16, external position.

Embodiment

The flexible body 1 of electromagnetism retractor device is fixed on slewing body, and the external connection end of Coupling Shaft 2 is fixed on slewing Rotating shaft, the square shaft and the square opening of telescopic shaft 5 of the other end of Coupling Shaft 2 are linked, and rotary torsion, telescopic shaft 5 are provided for telescopic shaft 5 It is positioned at by spring pad 3 and coil pad 8 on the central axis of flexible body 1, spring 4 is fixed on spring pad 3 and thrust bearing 6 Between, thrust bearing 6 is fixed on the bearing position of flexible body 1 over there close to magnet coil 7, and magnet coil 7, which is fixed on, to be pushed away Between power bearing 6 and coil pad 8, coil pad 8 is fixed in the flexible body 1 in the outside of magnet coil 7, when magnet coil 7 is powered, Electromagnetic force field is produced, the active force for making it occur with telescopic shaft 5 mutually to draw, because magnet coil 7 is fixed in thrust bearing 6 Between coil pad 8, therefore telescopic shaft 5 moves to magnet coil direction, while makes spring 4 that elastic shape occur by spring pad 3 Become.When magnet coil 7 powers off, electromagnetic force field disappears, and spring 4 loses applied external force and the recovery that rebounds, and push the spring pad 3 makes Telescopic shaft 5 resets, and whole device also just completes flexible operation, while can also keep the normal rotation of telescopic shaft 5.

Claims (2)

1. a kind of electromagnetism retractor device, including flexible body（1）, Coupling Shaft（2）, spring pad（3）, spring（4）, telescopic shaft（5）、 Thrust bearing（6）, magnet coil（7）, coil pad（8）, it is characterised in that：Coupling Shaft（2）Pass through square shaft and telescopic shaft（5）'s Square opening links, telescopic shaft（5）Pass through spring pad（3）With coil pad（8）It is positioned at flexible body（1）Central axis on, bullet Spring（4）It is fixed on spring pad（3）And thrust bearing（6）Between, thrust bearing（6）Close to magnet coil（7）Be fixed on over there Flexible body（1）Bearing position on, magnet coil（7）It is fixed on thrust bearing（6）With coil pad（8）Between, coil pad（8）Gu It is scheduled on magnet coil（7）The flexible body in outside（1）It is interior, telescopic shaft（5）Pass through magnet coil（7）And spring（4）To complete to stretch Contracting operation and it can rotate freely.

2. electromagnetism retractor device according to claim 1, it is characterised in that：Electromagnetism retractor device both ends need it is external other Equipment, therefore telescopic shaft（5）Both ends are all in magnet coil（7）, i.e. magnet coil（7）All the time it is enclosed on telescopic shaft（5）On, stretched for this Contracting axle（5）Devise stepped region（14）And extension area（15）, be magnetic field gravitation the main zone of action, extension area（15）Mainly For connecting magnet coil（7）Both ends, but electromagnetic force field both ends are magnetic balanced, telescopic shaft（5）Will stop motion, and electromagnetic wire Circle（7）The stepped region of one end（14）The effect of destruction of balance is just served, when first order ladder will enter balance, second level rank Ladder enters magnetic field range and continues destruction of balance, reaches telescopic shaft with this（5）Constantly dynamic purpose.