CN1269323A

CN1269323A - Windlass for elevator

Info

Publication number: CN1269323A
Application number: CN00104945A
Authority: CN
Inventors: 加藤久仁夫; 吉川和弘; 本田武信
Original assignee: Mitsubishi Electric Corp
Current assignee: Mitsubishi Electric Corp
Priority date: 1999-04-05
Filing date: 2000-03-29
Publication date: 2000-10-11
Anticipated expiration: 2020-03-29
Also published as: EP1394096A1; DE60031177T2; DE60031177D1; DE60007579D1; EP1043261A2; CN1104371C; EP1043261A3; EP1394096B1; KR100396809B1; KR20000071529A; EP1043261B1; JP3537348B2; JP2000289954A; DE60007579T2

Abstract

An elevator traction machine comprises: a base member (2); a rotating member (19) having a central portion facing to the base member and an open peripheral portion extended from the central portion; a sheave (20) rotating with the rotating member; a rope (12) wound on the sheave; a stator winding (18) provided on the interior circumferential surface of the base member; an armature (21) provided on the outer circumferential surface of the open peripheral portion of the rotating member at a position larger in diameter than the outer diameter of the sheave; the armature facing the stator winding, the armature and the stator constituting an electric motor; an encoder disposed on a main shaft for detecting the rotation of the sheave; wherein an outer dimension of the main shaft in an axis direction is shorter than the outer dimension of the traction machine in a direction perpendicular to the axis direction.

Description

Winch for elevator

The present invention relates to the integrally formed motor rotor and the trail-type Winch for elevator that drives rope sheave that is located in the framework.

Figure 10 and Figure 11 represent for example diagrammatic sketch of the public table 1996 year No. 511758 existing Winch for elevator that communique disclosed of day the present invention, and Figure 10 represents that it is installed in the front view of the state on the cage guide, and Figure 11 is the cutaway view along A-A line among Figure 10.Among the figure, the 1st, the cage guide that erect to be provided with, the 2nd, be matrix bowl-shape, a side opening, be provided with and be in the interior main shaft 5 of matrix 2 from be installed in bowl-shape bottom surface 4 upright state ground on the guide rail 1 by opening edge portion 3.6 are provided in a side of the stator winding of 4 inboards, bottom surface of matrix 2.

The 7th, be journaled into the swivel on the main shaft 5, the opposite face with 4 inboards, matrix 2 bottom surfaces be provided with relative with stator winding 6 and form the dish type electrical motor armature 8, be formed on the brake plate 9 on the periphery with the opposite face of 4 inboards, bottom surface and be formed on opening edge portion 3 sides, diameter of matrix 2 driving rope sheave 10 less than the minor diameter of brake plate 9.11 be provided in a side of in the matrix 2 outer peripheral edges portions, clamp the magnet stopper that brake plate 9 carries out braking maneuver, the 12nd, around hanging over the main push-towing rope that drives on the rope sheave 10, at both ends connects car, balance weight respectively, and diagram is omitted.

Existing Winch for elevator constitutes as described above, is installed in the back side of guide rail 1 and is configured in upper end near access trunk (not shown).And, on driving rope sheave 10,, utilize friction force to drive main push-towing rope 12 by the rotation that drives rope sheave 10 around hanging main push-towing rope 12, make car, balance weight lifting round about mutually.

In existing Winch for elevator as described above, because magnet stopper 11 is from outstanding setting of profile of matrix 2, so increased the oad of winch.In addition owing to will maintain, check to magnet stopper 11 grades, so also need to maintain space that operation uses and needs placement winch than large space, thereby the setting that exists winch is restricted, is provided with difficult problem.

For solving problem as described above, the objective of the invention is to, a kind of Winch for elevator that is easily positioned in the narrow space is provided.

In Winch for elevator of the present invention, have: be matrix bowl-shape, a side opening; Be located at the main shaft that is configured to upright state in the matrix, from the bowl-shape bottom center of matrix; Be configured in matrix that chimerism, bottom surface dispose relatively with the bottom surface of matrix, the center is journaled on the main shaft and the bowl bodies of rotation; Be formed on the driving rope sheave on this bowl bodies outer peripheral face; Be located at the stator winding on the matrix inner peripheral surface; Be located on the outer peripheral face of bowl bodies, relative configuration with stator winding and constitute the armature of electrical motor with stator winding; Have in the bowl bodies of being located at, be formed on the bowl bodies inner peripheral surface on relative configuration of brake surface and carry out the drg of the brake plate of braking maneuver.

In addition, in Winch for elevator of the present invention, be provided with the matrix openings edge portion that is installed in, and matrix between form the back plate in space, the two supports of main shaft is on the bottom and back plate of matrix.

In addition, in Winch for elevator of the present invention, be provided with the coder that the spindle end with the back plate side is configured in the center and the rotation that drives rope sheave is detected.

In addition, in Winch for elevator of the present invention, be provided with and connect matrix, relative configuration and, be provided with at the edge portion place of this sighthole that a side is captive, the main push-towing rope disengaging of relative configuration prevents part to opposite side with the less space of formation between the main push-towing rope that hangs on the driving rope sheave to the sighthole of leaving mutually along the direction of the side face of the wheel rim that drives rope sheave with the wheel rim face that drives rope sheave.

In addition, in Winch for elevator of the present invention, be provided with and form matrix one, that contain foot, this foot is provided with and can connects the hole for hoist that inserts main push-towing rope.

In addition, in Winch for elevator of the present invention, be provided with the main push-towing rope guide, its be located at matrix inner face, with relative configuration of wheel rim face that drives rope sheave, and leave along the periphery that drives rope sheave and at radial direction and to drive rope sheave periphery certain distance ground and dispose.

In addition, in Winch for elevator of the present invention, be located at relative portion side with the matrix bottom surface of bowl bodies with driving rope sheave, and armature is located at the matrix openings edge portion side of bowl bodies.

In addition, in Winch for elevator of the present invention, drg be installed on the back plate and be configured in and matrix between.

In addition, in Winch for elevator of the present invention, back plate comprise drg can be installed and detachablely be fastened on rotor plate on the matrix, can be installed in matrix opening edge portion adapter plate and rotationally rotor plate and the mutual relative position of adapter plate are given the hinge that pivot is adorned.

The simple declaration of accompanying drawing:

Fig. 1 is the front view of expression the invention process form 1;

Fig. 2 is the cutaway view along B-B line among Fig. 1;

Fig. 3 is the figure that is equivalent to Fig. 2 of the coder structure in expression presentation graphs 1 winch;

Fig. 4 is the right elevation that Fig. 2 of back state is unloaded matrix and bowl bodies in expression;

Fig. 5 is the block diagram of the matrix of Fig. 1 rear side;

Fig. 6 is that main push-towing rope breaks away from the block diagram that prevents part among Fig. 3;

Fig. 7 is the front view of expression the invention process form 2;

Fig. 8 is the left view of expression by Fig. 7 of state behind the hinge through back plate;

Fig. 9 is the figure of expression the invention process form 3, is to be illustrated in the figure that is equivalent to Fig. 1 that unloads lower support plate and drg among Fig. 1, removes state behind the armature installation portion of bowl bodies;

Figure 10 is the figure of the existing Winch for elevator of expression, is the front view that expression is installed in state on the cage guide.

Figure 11 is the cutaway view along A-A line among Figure 10.

Example 1

Fig. 1～Fig. 6 is an example of expression the invention process form, Fig. 1 is a front view, Fig. 2 is the cutaway view along B-B line among Fig. 1, Fig. 3 is the figure that is equivalent to Fig. 2 of the coder structure in presentation graphs 1 winch, Fig. 4 is the right elevation that Fig. 2 of back state is unloaded matrix and bowl bodies in expression, Fig. 5 is the block diagram of the matrix of Fig. 1 rear side, and Fig. 6 is that the main push-towing rope of Fig. 3 breaks away from the block diagram that prevents part.

Among the figure, the 2nd, be matrix bowl-shape, a side opening, be provided with opening edge portion 3, bowl-shape bottom surface 4, be formed on downside foot 13, connect the hole for hoist 14 of the main push-towing rope described later that foot 13 is communicated with bowl-shaped part.15 is back plates, vertically be configured in above-below direction, and both ends is configured in opening edge portion 3 places of matrix 2 respectively.The 16th, the fastener that bolt constituted by connecting insertion opening edge portion 3 in the screw-in back plate 15.

The 17th, main shaft is set as upright state from the bottom surface 4 of matrix 2, that is, two supports is at the center of back plate 15 and matrix 2 bottom surfaces 4, and crosses and be configured in the bowl bodies described later that is formed by back plate 15 and matrix 2, the space that drg is housed.18 are provided in a side of the stator winding on the inner peripheral surface of opening edge portion 3 sides of matrix 2.

The 19th, bowl bodies is configured to chimerism in matrix 2, the bottom surface 4 relative configurations of bottom surface and matrix 2, and the center is journaled into rotation on the main shaft 17 by bearing.The 20th, be formed at the driving rope sheave of the bottom surface side outer peripheral face of bowl bodies 19, the 21st, armature is located on the outer peripheral face of diameter greater than the external diameter that drives rope sheave 20 of opening edge portion side of bowl bodies 19, with stator winding 18 relative configurations and with stator winding 18 formation electrical motors.

The 22nd, by the drg that the magnet stopper that is located in the bowl bodies constitutes, it comprises: an end is journaled into brake toggle 24 on the back plate 15 by rest pin 23; Two ends respectively with the rotation end bonded assembly brake spring 25 of back plate 15 and brake toggle 24; Near rest pin 23 configuration of brake toggle 24, by with the relative brake plate that brake piece constituted 26 of brake surface 191 on the inner peripheral surface of the opening edge portion side that is formed on bowl bodies 19; To connect the threaded bar of inserting brake toggle 24 is that primary member constitutes, by spheric seating 27 brake plate 26 is remained on the holding element 28 on the brake toggle 24 and is located at mid-length bonded assembly electromagnet mechanism 30 on the back plate 15, that utilize connecting pin 29 and brake toggle 24.

In addition, the brake toggle 24 of drg 22, brake spring 25, brake plate 26 and electromagnet mechanism 30 etc. are configured in to symmetric position the both sides of main shaft 17 respectively.

The 12nd, around hanging over the main push-towing rope that drives on the rope sheave 20, at both ends is connecting car, balance weight respectively, and diagram is omitted here.The 31st, be configured in the coder of main shaft 17 end side, it comprises the detection bodies 32 that is installed on the back plate 15 and connects and the start plate 33 of bowl bodies 19 rotations with bowl bodies 19.

The 34th, connect the sighthole that matrix 2 is provided with, relative configuration with the wheel rim face that drives rope sheave 20 is also left configuration mutually to the direction along the side face of the wheel rim of driving rope sheave 20.The 35th, the main push-towing rope disengaging that is entrenched in the sighthole 34 prevents part, one side forms fastening part 36 and is fastened in the edge portion of sighthole 34 with mounting screw 37, opposite side form opposite face 38 and with the relative configuration around hanging over some spaces of formation between the main push-towing rope 12 that drives on the rope sheave 20.(omit expression sighthole 34 among Fig. 2.)

In above-mentioned such Winch for elevator that constitutes, mainly winch is installed on the fixed part of access trunk by foot 13, main push-towing rope 12 runs through hole for hoist 14 and drives on the rope sheave 20 around hanging over.And the electrical motor that is made of stator winding 18 and armature 21 rotates driving rope sheave 20, utilizes frictional force drives main push-towing rope 12, makes car, balance weight lifting round about mutually, and diagram is omitted here.

In the structure of Fig. 1～Fig. 6, be provided with armature 21 and form driving rope sheave 20 with the bowl bodies 19 that forms rotor, also be provided with the drg 22 of the brake surface 191 on the inner peripheral surface that utilizes brake plate 26 to push to be formed at bowl bodies 19 opening edge portion sides, and configuration constitutes bowl bodies 19 and the drg 22 that drives rope sheave 20 and motor rotor in by matrix 2 and in the back plate 15 formed spaces.Thus, the oad of winch can be dwindled, its miniaturization can be made.

In addition, can maintain, check operation to drg 22 grades from space with respect to the peristome of bowl bodies 19.Therefore, the maintenance that space and winch are set of winch, inspection operation use the space less just passable, can easily winch be arranged in the narrow space.Thus, can eliminate being provided with of winch restricted and be provided with the difficulty problem.

In addition, opening edge portion 3 sides at matrix 2 dispose stator winding 18, armature 21.Like this, just can easily check the position of electrical motor, can improve the maintenance efficiency of operation by unloading lower support plate 15.

In addition, because drg 22 is installed on back plate 15, so can drg 22 be unloaded from matrix 2 with back plate 15, easily the check stop device 22, improve and maintain efficiency of operation.

In addition, main shaft 17 ends with back plate 15 sides are center configuration coder 31.Like this, can effectively utilize back plate 15 can not make coder 31 outstanding with the space of matrix 2, thereby the oad that can reduce winch make its miniaturization from winch.Therefore, the maintenance that space and winch are set of winch, inspection operation use the space less just passable, and winch can be set easily.

In addition, can utilize the sighthole 34 that is located on the matrix 2 to check the situation that drives the main push-towing rope 12 on the rope sheave 20 around hanging over.In addition, main push-towing rope is installed on sighthole 34 breaks away from and to prevent part 35, the lax main push-towing rope 12 of generations breaks away from the preventing trouble before it happens of unfavorable condition of the grooving of driving rope sheaves 20 in the time of can be with the maintenance operation etc.

In addition, because foot 13 is set on matrix 2,, also can utilize the simple structure of installing and so on to come vibrationproof, support winch by vibration-proof rubber so can utilize simple structure that winch is installed in the fixed part place of access trunk.In addition, because main push-towing rope 12 is run through the hole for hoist 14 of matrix 2 foots 13 and around hanging on the driving rope sheave 20, also can not protect main push-towing rope 12 so in the gangway of matrix 2 protective (not shown) is not set in addition.Therefore, available simple structure will prevent trouble before it happens because of the unfavorable condition that the contact foreign matter damages in the gangway of main push-towing rope 12.

In addition, during the lift car lifting, the electromagnet mechanism 30 of drg 22 is subjected to the application of force and overcomes the pressing force of brake spring 25 and brake plate 26 is remained on going-back position to remove the braking that to bowl bodies 19, promptly drives rope sheave 20.In addition, when elevator stopped, the application of force that electromagnet mechanism 30 is subjected to was eliminated and brake plate 26 is formed at because of brake spring 25 is pressed against on the brake surface 191 of inner peripheral surface of bowl bodies 19 opening edge portion sides, thereby braking drives rope sheave 20.

In this drg 22, as shown in Figure 4,, be that the torque at center is because of becoming the relation of C * L1=D * L2 and L1＞L2, so D＞C then with rest pin 23 if the pressing force that the pressing force of brake spring 25 is made as C, brake plate 26 is made as D.

That is to say, owing to can make the pressing force D of the pressing force C of brake spring 25 less than brake plate 26, thus can make brake spring 25 miniaturizations, thus can effectively utilize ground, space drg 22 to be contained in the inside of bowl bodies 19.

Example 2

Fig. 7 and Fig. 8 are examples of expression other example of the present invention, and Fig. 7 is a front view, and Fig. 8 is the left view that expression utilizes Fig. 7 of state behind the hinge through back plate.The Winch for elevator that other structures constituted of Fig. 7 and Fig. 8 is identical with aforesaid Fig. 1～Fig. 6.Among the figure, represent the same structure part with Fig. 1～Fig. 6 same-sign.

The 15th, back plate comprises: major part, the installation drg 22 of corresponding configuration with the top of matrix 2 and formation back plate 15 also are fastened on the rotor plate 151 in the matrix 2 opening edge portions 3 dismantledly; With the lower edge of the corresponding formation in the bottom of matrix 2 back plate 15 and be installed in the adapter plate 152 in the opening edge portion 3 of matrix 2 and be located in rotor plate 151 and adapter plate 152 both relative portions and also be connected the two hinge 153 rotationally.

In the Winch for elevator that as above constitutes, also be provided with armature 21 and form and drive rope sheave 20, also be provided with the drg 22 of the brake surface 191 on the inner peripheral surface that utilizes brake plate 26 to push to be formed at bowl bodies 19 opening edge portion sides with the bowl bodies 19 that forms rotor.Therefore, in the example of Fig. 7 and Fig. 8, also can obtain with Fig. 1～Fig. 6 example in the same effect of operation, detailed here.

In addition, in the example of Fig. 7 and Fig. 8, the rotor plate 151 of drg 22 being installed and being formed back plate 15 tops is journaled on the adapter plate 152 by hinge 153.And as shown in Figure 8, drg 22 is given under the opened state utilizing hinge 153 to rotate to be disengaged, can maintain, check operation drg 22 grades with the fastening rotor plate 151 of matrix 2.Therefore, can easily maintain operation, and can improve operating efficiency drg 22 grades.

Example 3

Fig. 9 also is an example of expression other example of the present invention, and Fig. 9 is that the figure that is equivalent to Fig. 1 that lower support plate and drg are removed state behind the armature installation portion of bowl bodies is unloaded in expression in the earlier figures 1.Other formation Winch for elevator is identical with earlier figures 1～Fig. 6 among Fig. 9.Among the figure, represent the same structure part with Fig. 1～Fig. 6 same-sign, the 39th, the main push-towing rope guide, its be located at matrix 2 inner face, with relative configuration of wheel rim face that drives rope sheave 20, and be configured in the mutual of sighthole 34 along the periphery that drives rope sheave 20 and at the radial direction that drives rope sheave 20 with leaving certain distance.

In the Winch for elevator that as above constitutes, also be provided with armature 21 and form and drive rope sheave 20, also be provided with the drg 22 of the brake surface 191 on the inner peripheral surface that utilizes brake plate 26 to push to be formed at bowl bodies 19 opening edge portion sides with the bowl bodies 19 that forms rotor.Therefore, in the example of Fig. 9, also can obtain with Fig. 1～Fig. 6 example in same effect, detailed here.

In addition, in the example of Fig. 9, be provided with the main push-towing rope guide 39 relative with the wheel rim face that drives rope sheave 20 at the inner face of matrix 2.Therefore, when with main push-towing rope 12 around hanging over when driving on the rope sheave 20, go into main push-towing rope 12 in hole for hoist 14 interpolations of a side foot 13 of matrix 2, from sighthole 34 with its front end guidance to 39 of main push-towing rope guides, under this state, just enter inside by main push-towing rope guide 39 guiding if push main push-towing rope 12.

Then, once more main push-towing rope 12 is directed on 39 of the main push-towing rope guides with next sighthole 34.This repeatedly operation just can be drawn the front end of main push-towing rope 12 from the hole for hoist 14 of the opposing party foot 13 of matrix 2.Thus, can be easily with main push-towing rope 12 around hanging on the grooving that drives rope sheave 20, can improve the operating efficiency of the installation, maintenance etc. of elevator.

The present invention as above illustrates to have: be matrix bowl-shape, a side opening; Be located at the main shaft that is configured to upright state in the matrix, from the bowl-shape bottom center of matrix; Be configured in matrix that chimerism, bottom surface dispose relatively with the bottom surface of matrix, the center is journaled on the main shaft and the bowl bodies of rotation; Be formed on the driving rope sheave on this bowl bodies outer peripheral face; Be located at the stator winding on the matrix inner peripheral surface; Be located on the outer peripheral face of bowl bodies, relative configuration with stator winding and constitute the armature of electrical motor with stator winding; Have in the bowl bodies of being located at, be formed on the bowl bodies inner peripheral surface on relative configuration of brake surface and carry out the drg of the brake plate of braking maneuver.

Like this, be provided with armature and form the driving rope sheave with the bowl bodies that forms rotor, also be provided with the drg of the brake surface on the inner peripheral surface that utilizes brake plate to push to be formed at bowl bodies, therefore, can dwindle the oad of winch, and can utilize with respect to the space of bowl bodies peristome drg etc. is maintained, checks operation.Therefore, the maintenance that space and winch are set of winch, check that operation is less just passable with the space, can easily winch be arranged in the narrow space, thereby it is restricted and the problem of difficulty is set to eliminate being provided with of winch.

In addition, the present invention as above illustrates, be provided with the matrix openings edge portion that is installed in, and matrix between form the back plate in space, with the two supports of main shaft on the bottom and back plate of matrix.

Thus, configuration constitutes bowl bodies and the drg that drives rope sheave and motor rotor in the space that forms with back plate in by matrix, therefore, has the oad that dwindles winch and the effect that makes its miniaturization.

In addition, the present invention illustrates that as above the spindle end that is provided with the back plate side is configured in the center and detects the coder that drives the rope sheave rotation.

And, because at the spindle end configuration codes device that constitutes the space by back plate and matrix, can not make coder protrude in winch so can effectively utilize the space of back plate and matrix, can dwindle the oad of winch and make its miniaturization.Thus, the maintenance that space and winch are set of winch, inspection operation use the space less just passable, have the advantage that winch is set easily.

In addition, the present invention as above illustrates, be provided with and connect matrix, with respect to the wheel rim face configuration that drives rope sheave and to the sighthole of leaving mutually along the direction of the wheel rim side face that drives rope sheave, be provided with at the edge portion place of this sighthole that a side-line is tight, opposite side with form less space between the main push-towing rope that drives on the rope sheave and the main push-towing rope disengaging of relative configuration prevents part around hanging over.

And, break away from and prevent part by main push-towing rope is installed, can with produce lax main push-towing rope break away from the grooving that drives rope sheave unfavorable condition prevent trouble before it happens the effect of processing easeization when having the reliability that improves winch work and making maintenance.

In addition, the present invention as above illustrates, is provided with and forms matrix one, that contain foot, and this foot is provided with and can connects the hole for hoist that inserts main push-towing rope.

Therefore; main push-towing rope can be connected and be inserted in the hole for hoist of matrix foot; in the matrix gangway of main push-towing rope protective is not set in addition and just can protects main push-towing rope, available simple structure will prevent trouble before it happens because of the unfavorable condition that main push-towing rope contact foreign matter damages in the gangway of matrix.

In addition, the present invention as above illustrates, is provided with the main push-towing rope guide, its be located at matrix inner face, with relative configuration of wheel rim face that drives rope sheave, and leave along the periphery that drives rope sheave and at radial direction and to drive rope sheave periphery certain distance ground and dispose.

Thus, when with main push-towing rope around hanging over when driving on the rope sheave, can insert main push-towing rope from a main push-towing rope guide and a side that drives between the rope sheave, and its front end is led by main push-towing rope guide face and enters inside.And, can draw main push-towing rope from main push-towing rope guide and the opposite side that drives between the rope sheave.Therefore, can be with main push-towing rope easily around hanging on the grooving that drives rope sheave, have the effect of operating efficiencies such as the installation that improves elevator, maintenance.

In addition, the present invention as above illustrates, is located at relative portion side with the matrix bottom surface of bowl bodies with driving rope sheave, and armature is located at the matrix openings edge portion side of bowl bodies.

Thus, because of opening edge portion side configuration stator winding, armature, so detachable lower support plate and easily check the electrical motor position has and improves the effect of maintaining operating efficiency at matrix.

In addition, the present invention as above illustrates, be installed in drg on the back plate and be configured in and matrix between.

Thus, can drg be unloaded from matrix with back plate, easily the check stop device has the effect that improves the maintenance operating efficiency.

In addition, the present invention as above illustrates, back plate is by drg being installed and detachablely being fastened on rotor plate on the matrix, being installed in the adapter plate of opening edge portion of matrix and the hinge of rotationally rotor plate and the mutual relative position pivot of adapter plate being adorned constitutes.

Thus, utilizing hinge through to be disengaged and be placed under the state of opening from matrix, can maintain, check operation drg etc. with the fastening rotor plate of matrix.Therefore, have and can be easily drg etc. is maintained operation, and can improve the effect of operating efficiency.

Claims

1. a Winch for elevator is characterized in that having: be matrix bowl-shape, a side opening; Be located at the main shaft that is configured to upright state in the described matrix, from described bowl-shape bottom center; Be configured in described matrix that chimerism, bottom surface dispose relatively with the bottom surface of matrix, the center is journaled on the described main shaft and the bowl bodies of rotation; Be formed on the driving rope sheave on this bowl bodies outer peripheral face; Be located at the stator winding on the described matrix inner peripheral surface; Be located on the outer peripheral face of described bowl bodies, relative configuration with described stator winding and constitute the armature of electrical motor with described stator winding; Have be located in the described bowl bodies, be formed on described bowl bodies inner peripheral surface on relative configuration of brake surface and carry out the drg of the brake plate of braking maneuver.

2. Winch for elevator as claimed in claim 1 is characterized in that, have the matrix openings edge portion that is installed in, and described matrix between form the back plate in space, the two supports of main shaft is on the bottom and back plate of described matrix.

3. Winch for elevator as claimed in claim 1 is characterized in that, is provided with the coder that the spindle end with the back plate side is configured in the center and the rotation that drives rope sheave is detected.

4. Winch for elevator as claimed in claim 1, it is characterized in that, be provided with and connect matrix, relative configuration and, be provided with at the edge portion place of this sighthole that a side is captive, the main push-towing rope disengaging of relative configuration prevents part to opposite side with the less space of formation between the main push-towing rope that hangs on the driving rope sheave to the sighthole of leaving mutually along the direction of the side face of described wheel rim with the wheel rim face that drives rope sheave.

5. Winch for elevator as claimed in claim 1 is characterized in that, is provided with to form matrix one, that contain foot, and this foot is provided with and can connects the hole for hoist that inserts main push-towing rope.

6. Winch for elevator as claimed in claim 1, it is characterized in that, have the main push-towing rope guide, its be located at matrix inner face, with relative configuration of wheel rim face that drives rope sheave, and along the periphery of described driving rope sheave and leave described periphery certain distance ground at the radial direction of described driving rope sheave and dispose.

7. Winch for elevator as claimed in claim 2 is characterized in that, is located at relative portion side with the matrix bottom surface of bowl bodies with driving rope sheave, armature is located at the matrix openings edge portion side of described bowl bodies.

8. Winch for elevator as claimed in claim 7 is characterized in that, drg be installed on the back plate and be configured in and matrix between.

9. Winch for elevator as claimed in claim 8, it is characterized in that, back plate comprise drg can be installed and detachablely be fastened on rotor plate on the matrix, can be installed in matrix opening edge portion adapter plate and rotationally rotor plate and the mutual relative position of adapter plate are given the hinge that pivot is adorned.