CN87208482U

CN87208482U - Friction type electromagnetic clutch with sliding ring

Info

Publication number: CN87208482U
Application number: CN 87208482
Authority: CN
Inventors: 田金铭
Original assignee: Individual
Current assignee: Individual
Priority date: 1987-05-21
Filing date: 1987-05-21
Publication date: 1988-04-20

Abstract

The utility model discloses a friction type electromagnetic clutch with a sliding ring, which is suitable for various mechanical systems and automatically completes the transference of the function. The utility model has the advantages of simple structure, low cost and less power consumption. On the structure of the existing clutch, an outer friction sheet is made into a narrow sheet type outer friction sheet, a half trapezium magnetic conductive board is added, and a magnetic circuit and an electromagnetic parameter are optimized. The clutch is supplied with the electricity by an electric brush sliding ring, comprising a magnetic yoke body, a half trapezium magnetic conductive board, inner and outer friction sheets, a wave reed, an armature and a connection. The clutch is electrified, the armature is attracted, and the friction sheet group is pressed tightly. The transference of the force moment is realized, and the transference of the force moment is stopped, when the electricity of the clutch is broken.

Description

Friction type electromagnetic clutch with sliding ring

The utility model is a kind of improved magnetic clutch (hereinafter to be referred as clutch).Be applicable in the machine driven system, can be under the situation of main transmission running, make secondary part and active part in conjunction with or separate, thereby reach purpose such as commutation braking.

The slip ring friction clutcch is arranged at present, has two kinds substantially: a kind of be simple in structure, easily manufactured, cost is low, low price, but its structure falls behind, product performance are poor, belong to the level fifties.Another kind of advanced in performance, have the level seventies, but it makes complexity, consumption worker feed consumption is many, the price height, the price that same specification is one can be bought preceding a kind of 2.4.Since low price, therefore preceding a kind of vast market of still capturing.

The purpose of this utility model: be intended to design before existing a kind of easily manufactured, cost is low, low price, and the clutch product of a kind of advanced technology performance in back is arranged again.

The utility model is finished in the following manner, and low for making cost, low price, clutch are without geared sleeve, and splined hole is directly pulled out on yoke.On the end face that directly places the yoke body that interior outside friction disc replaces.Interior friction plate and splined shaft engagement, outside friction disc and the engagement of connection pawl.Coil places in the yoke, and the two ends of lighting outlet join with slip ring and yoke body respectively, and feed is finished by brush and slip ring, and moving armature pressing friction sheet group is inhaled in energising, and to passive side, outer plate separately in the outage back was made by the ripple reed transmission of torque.

For making it have advanced technical performance, outside friction disc is made the arrow gauge type, be used for increasing friction radius.But, for this model utility can be replaced in the market just at widely used clutch in direct replacement, its boundary dimension, splined hole, installation dimension must be identical with them, so after the outer plate internal diameter increases, on the end face of yoke body, in the isometric length in wire casing bottom surface, be provided with trapezoidal, square, rectangular magnet case.The design is half trapezoidal magnet case.And to coil parameter and magnetic circuit employing optimal case.By above design, this model utility product has the preceding equal low cost of a kind of clutch, equal low price.Quiet on performance simultaneously, braking torque improves 1.8 times, descends 20% on time, descends 69% turn-off time, and product weight has reduced by 13%, and its economize on electricity is remarkable especially, and technical performance has been caught up with back a kind of clutch, and benefit is very considerable.

Below in conjunction with accompanying drawing the utility model is described in further detail:

With reference to accompanying drawing, the endoporus of yoke body 2 pulls into spline, gets on the bus the groove that can hold coil 4 and half trapezoidal concentrating flux plate 5 at its end face, and the radial and axial work of groove has the lighting outlet hole, draws line end and passes through the lighting outlet eyelet welding respectively on slip ring 6 and yoke body 2 for two of coil.Be equipped with epoxy resin on the cylindrical of yoke body 2 and water solid slip ring 6, yoke body 2 and slip ring 6 mutual insulatings.Interior friction plate 9, ripple reed 8, outside friction disc 7 and stud with the armature 10 of magnetic shield is rotated on the end face of yoke body 2 by illustrated order respectively, and will connect in six grooves of six pawls embedding outside friction discs 7 of 11.The splined hole of interior friction plate 9 is meshed with user's splined shaft.Brush 1 closely contacts with slip ring 6, and power supply is inhaled moving armature pressing friction sheet group by brush 1 and slip ring 6 coil of feeding, and realizes transmission of torque, the outage back by ripple reed 8 separately with interior outside friction disc, transmission of torque stops.

Claims

1, by yoke body 2, coil 4, half trapezoidal concentrating flux plate 5, slip ring 6, outside friction disc 7, interior friction plate 9, ripple reed 8, armature 10 with connect 11 clutches of forming, it is characterized in that interior friction plate 9 makes wide type (so-called wide matrix internal diameter and axis hole are equal to) at the endoporus of yoke body 2 cog wheel cover not.Outside friction disc 7 makes arrow gauge type (so-called arrow gauge type is meant the internal diameter of outside friction disc 7, greater than having the not internal diameter of the used outer plate of clutch of cog wheel cover of yoke body endoporus now).

2,, it is characterized in that wire casing is done in echelon, wherein a kind of of half trapezoidal, parallelogram by the clutch of claim 1 regulation.

3, by the clutches of right 1 and 2 regulations, be provided with one section magnet case on the end face of yoke body 2 with in the isometric length in wire casing bottom surface, that shape makes is half trapezoidal, square, wherein a kind of of rectangular.