CN2249330Y

CN2249330Y - Electromagnetic clutching brake

Info

Publication number: CN2249330Y
Application number: CN 96232038
Authority: CN
Inventors: 吴德明
Original assignee: Xishan City Electric-Appliance & Meters No2 Factory
Current assignee: Xishan City Electric-Appliance & Meters No2 Factory
Priority date: 1996-06-07
Filing date: 1996-06-07
Publication date: 1997-03-12
Anticipated expiration: 2006-06-07

Abstract

The utility model relates to an electromagnetic clutching brake which adopts a common armature iron and a twin axle mode structure. An output shaft and an input shaft are arranged on a same central line, and the right end of the output shaft is provided with the common armature iron. The left side of the common armature iron is provided with a brake electromagnet which is fixed on a front cover. In such a way, a braking mechanism is formed. A clutching mechanism is formed by the correspondence of the common armature iron and a friction wheel. Under the action of the electromagnetic attracting force, a common armature iron shaft moves right to act a clutching function and moves left to act a braking function. The utility model has the advantages of simple structure, small size, reliable installation and convenient assembly and adjustment.

Description

A kind of electromagnetic type clutch brake

The utility model relates to a kind of improvement of electromagnetic type clutch brake.

Tradition electromagnetic type clutch brake commonly used is single shaft, double armature structure (as shown in Figure 3), transmission shaft traverses housing, clutch mechanism and arrestment mechanism independently are provided with its left and right portion respectively, the major defect of the clutch brake of this structure is bulky, installation and maintenance are very difficult, the adjustment complexity of clutch mechanism and arrestment mechanism working clearance, the axial displacement degree matching requirements height of transmission shaft.As taking place electric or mechanical failure easily makes work drive motor burn, functional reliability is poor, the manufacture cost height.

The purpose of this utility model provides a kind of simple in structure, and is safe and reliable, electric clutch-brake easy to maintenance.

To achieve the above object of the invention, the utility model adopts public armature and twin axle structure, it comprises housing (1), protecgulum (11), bonnet (3), the input shaft (5) that supports by bearing in the housing, be fixed on the flywheel (4) of input shaft (5) right-hand member, with fixedly connected with flywheel (4), in order to transmit the coupling (2) of power between flywheel and motor, the input shaft left end is provided with friction wheel (8), electromagnetic clutch coil (7) is placed in the friction wheel (8), and be fixed in the housing (1), output shaft (6) is housed in the axis hole of protecgulum (11), this axle and input shaft are on same center line, the right-hand member of output shaft (6) is equipped with public armature (9), there is the Breake Electromagnet (10) that is fixed on the protecgulum (11) in public armature (9) left side, public armature (9) and its composition arrestment mechanism, the right side of public armature (9) is corresponding with friction wheel (8), form clutch mechanism, this armature is as the shared part of clutch mechanism and arrestment mechanism, and hold certain working clearance, when its clutch action that axially moved to right, braking action has axially moved to left.

The concrete structure of the public armature of the utility model (9) is by the flange (18) of output shaft (6) right-hand member, form with the latch plate (19) of flange (18) riveted joint with the armature plate (20) of latch plate (19) riveted joint, be provided with between protecgulum (11) and the shell (1) and regulate pad (17) amounts to armature (9) with adjusting working clearance.

The utility model adopts public armature structure, and volume is little, and cost is low.Because public armature is in the middle of clutch mechanism and the arrestment mechanism, a moving direction can only be arranged during work, can not move to two directions simultaneously, therefore clutch and braking function mechanically have interlocked to use, add in the electrical control and can use clutch mechanism and arrestment mechanism power supply interlocked, thereby the working stability height, good reliability.Because take cross-compound arrangement and protecgulum housing, bonnet to form independently three big parts, and connected by screw, final assembly and adjustment are very convenient, just can overhaul clutch, arrestment mechanism as long as unload big protecgulum.The adjustment of working clearance also only needs the adjusting pad between increase and decrease protecgulum and shell to get final product.

Accompanying drawing 1 is the utility model structural representation.

Accompanying drawing 2 is public armature structure schematic representation.

Accompanying drawing 3 is the prior art structural representation.

Referring to accompanying drawing 1, electromagnetic clutch, arrestment mechanism that the utility model has a public armature (8) to form, it is positioned at shell (1) left side.Input shaft (5) is supported on the middle part of shell (1) by bearing (14), (15), and the right-hand member of input shaft (5) is connected with flywheel (4) with taper expansion set (16).Its left end fixed friction wheel (8), magnetic clutch coil (7) is placed in the friction wheel (8) and is fixed in shell (1) inner side surface.Output shaft (6) is housed in the axis hole of protecgulum (11), and this axle is by bearing (12), (13) supporting.Output shaft (6) right-hand member is equipped with public armature (9), and public armature (9) right flank is corresponding with friction wheel (8), forms clutch mechanism.Public armature (9) left surface is corresponding with the braking electromagnetism on being fixed on protecgulum (11), and forms arrestment mechanism.Public armature (9) (referring to accompanying drawing 2) realizes that by latch plate (19) and flange (18) elasticity is connected by armature plate (20).Flange (18) is fixed on the right-hand member of output shaft (6).Under the electromagnetic attraction effect, the armature plate (20) of public armature (9) moves to the right or left vertically, to realize clutch or braking function.Shell (1) links with screw with protecgulum (11), and can insert and regulate pad (17), and to regulate the clutch mechanism working clearance, the working clearance of arrestment mechanism can be guaranteed by the pad of regulating between public armature (9) and the output shaft (6).Shell (1) rear portion is equipped with bonnet (3), bonnet (3) but is gone up fixed electrical machinery, and so that power to be provided, coupling (2) is an elastic cylindrical pin formula structure, is connected by elastic ring and flywheel (4).

Working principle of the present utility model is as follows: power source is from motor output shaft, and this axle drives flywheel (4) rotation by shaft joint (2), and flywheel (4) drives input shaft (5) rotation, is fixed on the also corresponding rotation of friction wheel (8) on the input shaft (5).Because this moment, magnetic clutch was not worked as yet, so be in the idling conditions before driving, output shaft (6) is in halted state.Magnetic clutch coil (7) energising during startup, because the effect of electromagnetic attraction, public armature plate (9) moves axially to the right, with friction wheel (8) adhesive mutually, driving public armature (9) rotates together, because public armature (9) is fixed on the output shaft (6), so output shaft rotates thereupon, outputs power.During braking, magnetic clutch (7) outage, Breake Electromagnet (10) energising, magnetic clutch (7) disappears because of outage magnetic field, and public armature (9) resets, simultaneously because Breake Electromagnet (10) energising, the public armature of electromagnetic attraction adhesive (9) that produces makes it to move axially left, Breake Electromagnet (10) and the very fast adhesive of public armature (9), public armature (9) stops operating, and output shaft (6) is stopped operating.

Claims

1, a kind of electromagnetic type brake coupling comprises shell (1), protecgulum (11), bonnet (3), be positioned at the input shaft (5) of housing right-hand part by the bearing supporting, be fixed on the flywheel 4 of input shaft (5) right-hand member) with the coupling (2) of fixedlying connected with flywheel (4), the left end that it is characterized by input shaft (5) is provided with friction wheel (8), electromagnetic clutch coil (7) is placed in the friction wheel (8), and be fixed in the housing (1), output shaft (6) is housed in the axis hole of protecgulum (11), this axle and input shaft (5) are on same center line, the right-hand member of output shaft (6) is equipped with public armature (9), public armature (9) left side is provided with the Breake Electromagnet (10) that is fixed on the protecgulum (11), this Breake Electromagnet and public armature (9) are formed arrestment mechanism, and the right side of public armature (9) is corresponding with friction wheel (8), form clutch mechanism, this armature is as the shared part of clutch mechanism and arrestment mechanism, and hold certain working clearance S, S ', when its clutch action that axially moved to right, braking action has axially moved to left.

2, by the described a kind of electromagnetic type brake coupling of claim 1, it is characterized by the public armature of saying (9) by the flange (18) that is fixed on output shaft (6) right-hand member, form with the latch plate (19) of flange (18) riveted joint with the armature plate (20) of latch plate (19) riveted joint.

3,, it is characterized by to be provided with between protecgulum (11) and the shell (1) and regulate pad (17) by the described a kind of electromagnetic type clutch brake of claim 1.