CN202152264U

CN202152264U - Outside shock-absorbing electromagnet for disc brake

Info

Publication number: CN202152264U
Application number: CN201120233046XU
Authority: CN
Inventors: 韩伍林; 王建伟
Original assignee: Shijiazhuang Wulon Brake Co Ltd
Current assignee: Shijiazhuang Wulon Brake Co Ltd
Priority date: 2011-07-05
Filing date: 2011-07-05
Publication date: 2012-02-29
Anticipated expiration: 2021-07-05

Abstract

The utility model relates to an outside shock-absorbing electromagnet for a disc brake. The outside shock-absorbing electromagnet for the disc brake is structurally characterized in that an electromagnetic coil and brake springs are mounted in a casing; an armature is jointed with the working face of the casing; an erection bolt for fixing is connected onto the casing and the armature in a penetrating manner; a hollow bolt is in threaded connection onto a bolt rod of the erection bolt; the bolt rod of the hollow bolt is in clearance fit with connection through holes on the armature; and at lease two guide posts are connected onto the casing and the armature in a penetrating manner. Through the additional arrangement of guide posts in the brake electromagnet, the moving wear of the armature supporting part is lowered, the wear resistance of the brake electromagnet is improved, and an outside shock-absorbing mechanism can be possibly arranged on the brake electromagnet, which can thus prolong the service life of the brake electromagnet, facilitate the shock-absorbing regulation of the brake electromagnet and improve the use safety of the disc brake and the elevator.

Description

Plate disc brake is with outer damping type electromagnet

Technical field

The utility model relates to a kind of magnet stopper, and specifically a kind of plate disc brake is with outer damping type electromagnet.

Background technology

A kind of disk type electromagnetic brake that on elevator traction machine, uses at present; The housing of dress magnet coil and retarding spring in comprising; The driving surface of armature and housing fits; Cross-under has had hold-down bolt fixing and directional tagging on housing and armature, on the tightening latch of hold-down bolt, is socketed with hollow bolt, and the tightening latch of this hollow bolt is threaded with jack hole on the housing, be that friction pair cooperates with jack hole on the armature.The effect of hollow bolt, the one, play the role of positioning, with the movement clearance of adjustment armature; Two provide the cross-under passage, and hold-down bolt is therefrom passed, thereby drg is fastened on the casing of elevator traction machine; The 3rd, the motion of armature is led, and carry suffered shearing force in the braking procedure.

Because hollow bolt is difficult for sclerosis, its resistance to abrasion is relatively poor, and that armature is soft iron material is made; Therefore; In the frequent movement process of armature, these the motion wearing and tearing to friction pair of hollow bolt and armature are more serious, to causing very big adverse effect the service life of drg.And the frequent movement of armature also makes hollow bolt loosening easily, and corresponding effect was lost efficacy.

In addition, the cushion blocking of existing disk type electromagnetic brake generally all is built-in, just is arranged on the housing driving surface that fits with armature, weakening the bump dynamics of armature to the housing driving surface, thereby reduces drg at the adhesive impact noise of moment.But because the internal work temperature of drg is higher, cushion blocking is temperature distortion very easily, and the wearing and tearing of cushion blocking when in addition working make that the adjustment frequency increases for the cycle of reducing the drg damping adjustment that noise carries out shortens.And, carry out because the adjustment of built-in damping must be torn machine open, so adjustment is inconvenience very.

The utility model content

The purpose of the utility model just provides a kind of plate disc brake with outer damping type electromagnet, is prone to become flexible, wear no resistance and brake electromagnet short, the inconvenient problem of damping adjustment in service life with the hollow bolt that solves in the electromagnet.

The utility model is achieved in that a kind of plate disc brake is with outer damping type electromagnet; Magnet coil and retarding spring are housed in housing; The driving surface of armature and said housing fits, and cross-under has the fixedly hold-down bolt of usefulness on said housing and said armature, and hollow bolt has been threaded on the tightening latch of said hold-down bolt; Jack hole on the tightening latch of said hollow bolt and the said armature is a free-running fit, at least two guidepost cross-under is arranged on said housing and said armature.

The utility model is through adding guidepost and eliminating the friction pair between cored screw and the armature; Just can make the former function that has the hold-down bolt of guiding, adjustment and fastening supporting role concurrently realize effective the separation; Promptly hold-down bolt and the hollow bolt of this moment have just kept the effect of adjusting armature gap and drg being carried out fastening support; And initiate guidepost through with the cooperating of self lubrication bearing, just become the guiding mechanism of armature motion and the bearing object of drg braking shearing force.Because the sclerosis of cylindrical steel is more or less freely; Guidepost is hardened with Wear-resistant Treatment after; This bearing fit form of guidepost just can effectively reduce the wearing and tearing of motion support zone; And this bearing fit form of guidepost is because irrelevant with hollow bolt, thereby also just overcome traditional hollow bolt and be prone to drawback loosening and that wear no resistance, corresponding resistance to abrasion and service life of having improved brake electromagnet.

Damping outside on said housing, being equipped with, an end of said guidepost withstands on the said outer damping.Through adding outer damping, the one, can reduce the work noise of brake electromagnet; The 2nd, make damping adjustment and change and need not tear machine open and carry out, make adjustment more convenient, quick.

Said outer damping comprises regulating plate that is fixed on the said housing and the damper element that is socketed in reducing place, said guidepost termination.

Said damper element is spring, cushion rubber or rubber cushion.

Reducing place at said guidepost is socketed with annular roof plate.

Said regulating plate is the annulus plate, is fixed in the annular groove on the said housing through set screw.

The utility model is through setting up guidepost in brake electromagnet; The motion wearing and tearing of armature support zone have been reduced; Improve the resistance to abrasion of brake electromagnet, and made outer damping on brake electromagnet, be set to possibility, can prolong the service life of brake electromagnet thus; Make things convenient for the damping adjustment of brake electromagnet, improve the safety in utilization of plate disc brake and elevator.

Description of drawings

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

Fig. 2 is the lateral plan of brake electromagnet shown in Figure 1.

Fig. 3, Fig. 4 are two partial enlarged drawings of brake electromagnet shown in Figure 1.

Each parts and label thereof are respectively among the figure: housing 1, armature 2, magnet coil 3, cushion blocking 4, set screw 5, regulating plate 6, damper element 7, guidepost 8, hold-down bolt 9, retarding spring 10, hollow bolt 11, brake disc 12, annular roof plate 13.

The specific embodiment

Like Fig. 1, shown in Figure 2, the structure of the utility model and the used brake electromagnet of traditional plate disc brake is basic identical, promptly comprises discoid housing 1 and circular armature 2 of a band centre hole, and armature 2 is relative with the driving surface of housing 1; A magnet coil 3 and some retarding springs 10 are housed respectively in housing 1; Be positioned at the lateral surface of armature 2 with the spindle nose key bonded assembly brake disc 12 of elevator traction machine, the axle sleeve on the brake disc 12 is inserted in the core hole of this brake electromagnet.

On housing 1 and armature 2, have four jack holes that are uniformly distributed along the circumference; The aperture of the jack hole on the armature 2 is greater than the aperture of the jack hole on the housing 1; And; On the hole wall of the jack hole of housing 1, be shaped on negative thread (Fig. 4), after hollow bolt 11 passes the jack hole on the armature 2, be threaded in the jack hole on the housing 1.Hold-down bolt 9 penetrates jack hole from the outside of housing 1, and after passing at the endoporus that penetrates hollow bolt 11, from bolt cap end, is fastened on the mode that is threaded on the casing of elevator traction machine, so that plate disc brake is implemented to be locked.

Among Fig. 1, have in three other jack holes of 3 guidepost 8 cross-under on housing 1 and armature 2.Guidepost generally can be provided with 2-4, and along the circumference rectangular distribution.Guidepost 8 should carry out Wear-resistant Treatment, also should carry out Wear-resistant Treatment to the jack hole of the cross-under guidepost on housing 1 and the armature 2.The Wear-resistant Treatment mode comprises makes surface wear-resistant layer, nitriding layer or ceramic spraying layer etc., an also configurable wear-resistant sleeve, thus form self lubrication bearing.So just can overcome the relatively poor defective of abrasion test that the housing processed by soft iron 1 and armature 2 exist self.

Among Fig. 1, damping outside on housing 1, being equipped with, this damping is in the armature motion process, damping is implemented in the pushing through guidepost 8.

Should comprise regulating plate 6 that is fixed on the housing 1 and the damper element 7 that is socketed in reducing place, guidepost 8 termination by outer damping.Damper element 7 can be spring, cushion rubber or rubber cushion etc.At the reducing place of guidepost 8 annular roof plate 13 of best socket (Fig. 3).Armature 2 is in 8 actions of adhesive moment promotion guidepost, and the annular roof plate 13 pushing damper elements 7 through being enclosed within guidepost 8 reducing places, realizes the purpose of damping.

Regulating plate 6 can be the plate of an annular arrangement, is fixed in the annular groove on the housing 1 through some set screw 5; The also cover cap of an annular arrangement, buckle closure is on the lateral surface of housing 1.

Certainly, the utility model also can adopt other to pass through the outer damping that 8 pairs of damper elements of guidepost 7 are implemented promotion and compression shock absorption.

Claims

1. a plate disc brake is with outer damping type electromagnet; Magnet coil (3) and retarding spring (10) are housed in housing (1); Armature (2) fits with the driving surface of said housing (1); Going up cross-under at said housing (1) and said armature (2) has the fixedly hold-down bolt of usefulness (9), and the hollow bolt (11) that on the tightening latch of said hold-down bolt (9), has been threaded is characterized in that; Jack hole on the tightening latch of said hollow bolt (11) and the said armature (2) is a free-running fit, at least two guideposts (8) cross-under is arranged on said housing (1) and said armature (2).

2. plate disc brake according to claim 1 is characterized in that with outer damping type electromagnet, damping outside on said housing (1), being equipped with, and an end of said guidepost (8) withstands on the said outer damping.

3. plate disc brake according to claim 2 is characterized in that with outer damping type electromagnet said outer damping comprises the regulating plate (6) that is fixed on the said housing (1) and is socketed in the damper element (7) at reducing place, said guidepost (8) termination.

4. plate disc brake according to claim 3 is characterized in that with outer damping type electromagnet said damper element (7) is spring, cushion rubber or rubber cushion.

According to claim 3 or 4 described plate disc brakies with outer damping type electromagnet, it is characterized in that, be socketed with annular roof plate (13) at the reducing place of said guidepost (8).

According to claim 3 or 4 described plate disc brakies with outer damping type electromagnet, it is characterized in that said regulating plate (6) is the annulus plate, be fixed in the annular groove on the said housing (1) through set screw (5).