CN205430030U

CN205430030U - Electromagnetic induction clutch

Info

Publication number: CN205430030U
Application number: CN201520929015.6U
Authority: CN
Inventors: 黄云凡
Original assignee: CHONGQING SHANGZE MECHANICAL AND ELECTRICAL Co Ltd
Current assignee: CHONGQING SHANGZE MECHANICAL AND ELECTRICAL Co Ltd
Priority date: 2015-11-20
Filing date: 2015-11-20
Publication date: 2016-08-03
Anticipated expiration: 2025-11-20

Abstract

The utility model discloses an electromagnetic induction clutch, the brushless motor comprises a front end cover, a housing, driven shaft and driving shaft, driving shaft one side is equipped with the armature, the driving shaft opposite side is equipped with the motor, be equipped with the mount pad on the driven shaft, be equipped with the magnetic pole on the mount pad, be equipped with the bearing on the driven shaft, the front end housing passes through the bearing to be supported on the driven shaft, the front end housing is equipped with direct current excitation winding, direct current excitation winding and outside DC power supply are connected, direct current excitation winding will produce magnetic field after letting in the direct current, the magnetic circuit in magnetic field loops through the front end housing, the mount pad, the magnetic pole, armature and casing form closed -loop. The utility model discloses a beneficial effect is: use the electromagnetic induction principle, make active portion drive the secondary part operation and transmit the moment of torsion, no any mechanical connection between while owner, the driven part, thus the reliability of improvement system that can be very big, and this scheme simple structure, convenient operation.

Description

Electromagnetic induction clutch

Technical field

This utility model relates to mechanical driving device, is specially a kind of electromagnetic induction clutch.

Background technology

Clutch is to realize actively having when transmitting movement and power on coaxial line joint or the device of separation function with secondary part, it it is mechanical part conventional in machine drive mechanism, clutch generally uses the operating mechanisms such as lever directly to handle joint element, makes clutch engage or separates.

The transmission of traditional clutch power be dependent on two slice clutch upper teeth engagement realize, half-clutch device one and driving shaft connect, half-clutch device two and driven shaft connect, under the effect of operating mechanism, half-clutch device two can move axially along driven shaft, until half-clutch device one and half-clutch device two engage, this kind of structure uses mechanical connection manner, half-clutch device one and half-clutch device two easily produce frictional heating etc. in engagement and separation process, thus by causing the thread form part on two halves clutch to be easily damaged, have influence on the reliability of clutch.

Utility model content

This utility model is intended to provide a kind of simple in construction and the high electromagnetic induction clutch of reliability.

Electromagnetic induction clutch in this programme, including drive end bearing bracket, casing, driven shaft and driving shaft, driving shaft side is provided with armature, driving shaft opposite side is provided with motor, driven shaft is provided with mounting seat, mounting seat is provided with magnetic pole, driven shaft is provided with bearing, drive end bearing bracket passes through bearings on driven shaft, drive end bearing bracket is attached by screw with casing, drive end bearing bracket is provided with DC excitation winding, DC excitation winding is connected with external dc power, DC excitation winding will produce magnetic field after being passed through unidirectional current, the magnetic circuit in magnetic field passes sequentially through drive end bearing bracket, mounting seat, magnetic pole, armature and casing form closed-loop path.

nullThe operation principle of the electromagnetic induction clutch in this programme is: external dc electricity is passed through DC excitation winding，Now will produce magnetic field around DC excitation winding，The magnetic circuit in this magnetic field will be along drive end bearing bracket、Mounting seat、Magnetic pole、Armature and casing form the loop of Guan Bi，Now under the drive of motor，Driving shaft rotates，Armature is driven to rotate，Now armature produces induced potential because of cutting magnetic line，This induced potential will produce eddy current in armature，This eddy current and magnetic field interaction will produce electromagnetic force，The action direction of this electromagnetic force is the relative motion hindering armature with magnetic pole，According to active force and counteracting force，Magnetic pole will move along the direction that armature is identical under the effect of this electromagnetic force，Driven shaft will move with magnetic pole，Complete the transmission of torque，Now be equivalent to the state of conventional clutch engagement，When DC excitation winding stops being passed through unidirectional current，Magnetic field around DC excitation winding disappears，Now armature is by no longer cutting magnetic line，Therefore also will not produce electric current，And then generation active force，Driven shaft keeps static，Be equivalent to the separate state of conventional clutch.

Electromagnetic induction clutch in this programme provides the benefit that: use electromagnetic induction principle, make active part drive secondary part operate and transmit moment of torsion, without any mechanical connection between the most driving and driven parts, therefore the reliability of system can be improved greatly, and program simple in construction, easy to operate.

Further, motor is AC induction motor, AC induction motor simple in construction, technology maturation, and manufacturing cost is relatively low.

Further, bearing is deep groove ball bearing, and the coefficient of friction of its inner structural members of deep groove ball bearing is little, therefore can bear higher limit speed, meets the clutch requirement to rotating speed.

Further, also including the rear end cap for installing motor being connected with casing, rear end cap is provided with installation seam and installing hole, motor by with the coordinating of the seam on rear end cap and installing hole, can guarantee that the position of motor is accurate, thus ensure that the position of driving shaft is accurate.

Accompanying drawing explanation

Fig. 1 is the structural representation of this utility model embodiment.

Detailed description of the invention

Below by detailed description of the invention, this utility model is described in further detail:

Reference in Figure of description includes: DC excitation winding 1, casing 2, armature 3, magnetic pole 4, driving shaft 5, driven shaft 6, drive end bearing bracket 7, magnetic circuit 8, rear end cap 9, motor 10.

Embodiment is the most as shown in Figure 1: electromagnetic induction clutch, including DC excitation winding 1, casing 2, armature 3, magnetic pole 4, driving shaft 5, driven shaft 6, drive end bearing bracket 7, rear end cap 9 and motor 10.

The electromagnetic induction clutch rightmost side is motor 10, this motor 10 is installed on rear end cap 9 by rear end cap 9 seam and screw, driving shaft 5 it is provided with on the left of motor 10, owing to rear end cap 9 is resting state, therefore driving shaft 5 is attached by bearing with rear end cap 9, and the axle stretch end at driving shaft 5 is provided with armature 3, this armature 3 is attached by spline with driving shaft 5, the length of the length lower on the upside of armature 3 cross section is long, relative with magnetic pole 4 on the upside of armature 3, has a certain distance between the two.

It is provided with driven shaft 6 in the left side of driving shaft 5, the longitudinal center line of driving shaft 5 and the longitudinal center line of driven shaft 6 are positioned on straight line, space is there is between described driving shaft 5 and described driven shaft 6, right-hand axis at driven shaft 6 is stretched place and is provided with mounting seat, mounting seat is arranged over magnetic pole 4, this magnetic pole 4 cross section is a rectangle, relative with on the upside of armature 3 above magnetic pole 4.

It is additionally provided with two bearings on the driven shaft 6, bearing inner circle coordinates with driven shaft 6, bearing top circle coordinates with drive end bearing bracket 7, drive end bearing bracket 7 passes through bearings on driven shaft 6, the deep groove ball bearing of Selection of Bearings band dual face seals lid herein, drive end bearing bracket 7 is provided with DC excitation winding 1, DC excitation winding 1 is connected with external dc power, DC excitation winding 1 will produce magnetic field after being passed through unidirectional current about, and the magnetic circuit 8 in magnetic field passes sequentially through drive end bearing bracket 7, mounting seat, magnetic pole 4, armature 3, casing 2 eventually pass back to drive end bearing bracket 7 and form closed-loop path.

Above-described is only embodiment of the present utility model, and in scheme, the known general knowledge such as concrete structure and characteristic too much describes at this.Should be understood that; for a person skilled in the art, on the premise of without departing from this utility model structure, it is also possible to make some deformation and improvement; these also should be considered as protection domain of the present utility model, and these are all without affecting effect and the practical applicability that this utility model is implemented.The protection domain that this application claims should be as the criterion with the content of its claim, and the detailed description of the invention in description etc. records the content that may be used for explaining claim.

Claims

1. an electromagnetic induction clutch, it is characterized in that: include drive end bearing bracket, casing, driven shaft and driving shaft, described driving shaft side is provided with armature, described driving shaft opposite side connects motor, described driven shaft is provided with mounting seat, described mounting seat is provided with magnetic pole, described driven shaft is provided with bearing, described drive end bearing bracket by described bearings on described driven shaft, described drive end bearing bracket is attached by screw with described casing, described drive end bearing bracket is provided with DC excitation winding, described DC excitation winding is connected with external dc power, described DC excitation winding will produce magnetic field after being passed through unidirectional current, the magnetic circuit in described magnetic field passes sequentially through described drive end bearing bracket, described mounting seat, described magnetic pole, described armature and described casing form closed-loop path.

Electromagnetic induction clutch the most according to claim 1, it is characterised in that: described motor is AC induction motor.

Electromagnetic induction clutch the most according to claim 1, it is characterised in that: described bearing is deep groove ball bearing.

Electromagnetic induction clutch the most according to claim 1, it is characterised in that: also including the rear end cap for installing described motor being connected with described casing, described rear end cap is provided with installation seam and installing hole.