CN201220903Y

CN201220903Y - Remote brake releasing apparatus of overlapping brake

Info

Publication number: CN201220903Y
Application number: CNU2008200879875U
Authority: CN
Inventors: 郑华周
Original assignee: Ningbo Hongda Elevator Co Ltd
Current assignee: Ningbo Hongda Elevator Co Ltd
Priority date: 2008-05-26
Filing date: 2008-05-26
Publication date: 2009-04-15
Anticipated expiration: 2018-05-26

Abstract

The utility model discloses a remote declutching device for a folding brake on a traction machine for an elevator. The declutching device comprises two declutching handles (1). The two declutching handles (1) are sleeved on respective pull rods (3) on the inner sides of nuts (2); devices for transforming the rotation into the axial movement of the pull rods are arranged in the combination part of the declutching handles (1) and electromagnet components (4); the free end of one declutching handle (1) is fixed with the tail end of a core wire (5) of a stay cable; the free end of another declutching handle (1) is fixed with the trail end of a sleeve (6) of the stay cable; two reset springs (7) are arranged between the two declutching handles (1) and the electromagnet components (4); the head end of the core wire (5) of the stay cable is wound on the rotating disc of a remote control device; the head end of the sleeve (6) of the stay cable is fixed on the machine frame of the remote control device; and a control handle is arranged on the rotating disc. The remote declutching device for the folding brake has the advantages of convenient operation, high mounting synchronism and reliability, and less occupied space in a machine room.

Description

The long-range device that declutches of folding brake

Technical field

The utility model relates to a kind of long-range device that declutches, and specifically is the long-range device that declutches of folding brake on a kind of anodontia towing machine of frame-type that is used for elevator.

Background technology

The folding brake of the anodontia towing machine of frame-type of prior art elevator is generally two one group of left-right symmetric and is distributed in top about towing machine, each folding brake comprises the electromagnet assembly of pull bar, armature component and band spring, described electromagnet assembly is installed on the towing machine framework, described pull bar sliding fit in the centre hole of electromagnet assembly and tail end and armature component fix, described pull bar head end is provided with the nut of belt washer, described armature component is positioned under the electromagnet assembly, Capstan rotor about the top.During energising, two groups of electromagnet assemblies attract symmetrical armature component against the force of the spring to break away from Capstan rotor, reach the purpose that declutches; During outage, two groups of electromagnet assembly effects disappear, and symmetrical armature component abuts against on the Capstan rotor under action of the spring, reaches the purpose of band-type brake.Meet to have a power failure, if need manpower to declutch so that rotating towing machine makes car arrive to need the position, the purpose that reaches the interior personnel of the stranded elevator of interim relief and keep in repair then need adopt (manpower) device that declutches.And the device that declutches of prior art comprise about two symmetries be installed in the lever that declutches on the folding brake, described lever one end that declutches is enclosed within the pull bar head end and is pressed on the electromagnet assembly with the nut of belt washer.The other end of pressing the lever that declutches is a free end, just pull bar can be levered up, and promptly drives pull rod shaft and outwards moves, and breaks away from Capstan rotor thereby drive armature component.

There is following defective in the device that declutches of above structure: because the device that declutches of folding brake is configuration in pairs, two levers that declutch must be pressed simultaneously and just the purpose that declutches can be reached, so, the operation of manually declutching is inconvenient, the synchronism and the reliability of device of declutching is not high, and owing to the long-range device that declutches of folding brake on the anodontia towing machine of frame-type of prior art is still blank, so operating personal must just can be operated near the device that declutches, so the machine room of placement towing machine and brake-loosing mechanism thereof need take than large space and enter for operating personal, has wasted the space.

The utility model content

The technical problems to be solved in the utility model is, provide a kind of manually declutch easy to operate, the take up room long-range device that declutches of little folding brake of the synchronism of its device and reliability height and machine room.

Technical solution of the present utility model is, a kind of long-range device that declutches of folding brake is provided, it comprises two handles that declutch, each end of described two handles that declutch is linked in respectively on the inboard folding brake of the nut pull bar separately, the joint portion of this end of the described handle that declutches and the electromagnet assembly of folding brake is provided with the axially movable device that the rotation of the handle that declutches is changed into pull bar, the other end of the described handle that declutches is that the end of the heart yearn of free end and drag-line is fixed, the declutch end of sleeve pipe of the free end of handle and drag-line of described another root is fixed, be provided with two retracing springs between the electromagnet assembly of described two declutch handle and folding brakes, the head end of the heart yearn of described drag-line is on the rotating disk of remote control device, the head end of the sleeve pipe of described drag-line is fixed on the frame of remote control device, and described rotating disk is provided with bar handle.

Slewing maneuver (work) handle, the heart yearn of drag-line is moved to head end, heart yearn drive with heart yearn end fixed declutch handle to the towing machine framework is inboard rotate in, also driving sleeve pipe moves to head end, but because the sleeve pipe head end is fixed on the frame of long-distance operating device, so frame makes the sleeve pipe terminad move for the sleeve pipe antagonistic force, thereby drive another root that links to each other with tube ends and declutch handle, thereby realize inwardly rotating synchronously of two handles that declutch also to the inboard rotation of towing machine framework.And because the joint portion of the electromagnet assembly of declutch handle and folding brake is provided with the axially movable device that the rotation of the handle that declutches is changed into pull bar, so the rotation of two handles that declutch upwards moves two pull rod shaft, and then drive two armature components disengaging Capstan rotors, reach the purpose that manually declutches.This moment, operating personal rotated towing machine, and lift car is reached needs the position, unclamps bar handle again, the handle that declutches resets under the effect of retracing spring, and pull bar also the action of the spring lower shaft in electromagnet assembly make armature component be close to Capstan rotor to moving down, reach the purpose of band-type brake.

After adopting above structure, the utility model folding brake declutch device compared with prior art, have the following advantages:, make two pull bars that declutch to rotate simultaneously owing to adopt stayed structure, improved the synchronism and the reliability of the device that declutches, made easy to operate.Owing to adopt the remote control device, operating personal need not to enter machine room and operates near towing machine, and the machine room space can dwindle relatively, so saved the space of machine room.

As improvement, described rotating disk is provided with bar handle and refers to, the end face of described rotating disk is provided with a plurality of tapped bore that are used to install bar handle, described bar handle is provided with at least two through holes that supply binding bolt to pass, and at least two binding bolts pass through hole bar handle is fixed on the end face of rotating disk.Like this, bar handle is installed on the rotating disk end face, has avoided the rotation space of bar handle to be subjected to 360 ° of restrictions, has strengthened the adjusting length of drag-line heart yearn, and then has improved the reliability of the device that declutches; And, can change the length of the handle arm of force that declutches as required owing to adopt a plurality of mounting holes, improve the commonality of remote control device.

As improving, when described two handles that declutch were reset mode, all to the outside deflection of the framework of towing machine, two handles that declutch were splayed to the free end of the handle that declutches each other again.Like this, the handle that declutches is more rotated surplus, thereby has further guaranteed the reliability that declutches.

Description of drawings

Fig. 1 is that the long-range device that declutches of folding brake of the present utility model is faced structural representation when being installed in the anodontia towing machine of frame-type.

Fig. 2 is the plan structure scheme drawing of the long-range device that declutches of folding brake of the present utility model when being installed in the anodontia towing machine of frame-type.

Fig. 3 is the semi-sictional view structural representation of the handle that declutches of the present utility model when being installed in folding brake.

Fig. 4 is the structural representation of facing of remote control device of the present utility model.

Fig. 5 is the side-looking structural representation of remote control device of the present utility model.

Fig. 6 is the structural representation of looking up of drop center wheel of the present utility model.

Fig. 7 is the plan structure scheme drawing of end face of the electromagnet assembly of the utility model and drop center wheel junction.

Shown in the figure 1, the handle that declutches, 2, nut, 3, the pull bar of folding brake, 4, the electromagnet assembly of folding brake, 5, heart yearn, 6, sleeve pipe, 7, retracing spring, 8, rotating disk, 9, frame, 10, bar handle, 11, reseting handle, 12, pit, 13, steel ball, 14, drop center wheel, 15, arc groove.

The specific embodiment

The utility model is described in further detail below in conjunction with the drawings and specific embodiments.

As Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, shown in Figure 7, the long-range device that declutches of a kind of folding brake of the utility model, comprise two handles 1 that declutch, each end of described two handles 1 that declutch is linked in respectively on the pull bar separately 3 of nut 2 inboard folding brakes.The joint portion of this end of the described handle 1 that declutches and the electromagnet assembly 4 of folding brake is provided with the axially movable device that the rotation of the handle 1 that declutches is changed into pull bar 3.The other end of the described handle 1 that declutches is that the end of the heart yearn 5 of free end and drag-line is fixed, the declutch end of sleeve pipe 6 of the free end of handle 1 and drag-line of described another root is fixed, respectively be provided with a retracing spring 7 between the electromagnet assembly 4 of described two declutch handle 1 and folding brakes, present embodiment adopts following structure: described two handles 1 that declutch also comprise two reseting handles 11, respectively are provided with a retracing spring 7 between described two reseting handles 11 and the electromagnet assembly 4.The head end of the heart yearn 5 of described drag-line is on the rotating disk 8 of remote control device, the head end of the sleeve pipe 6 of described drag-line is fixed on the frame 9 of remote control device, described rotating disk 8 is provided with bar handle 10, present embodiment adopts following structure: the end face of rotating disk 8 is provided with a plurality of tapped bore that are used to install bar handle 10, described bar handle 10 is provided with two through holes that supply binding bolt to pass, and two binding bolts pass through hole bar handle 10 is fixed on the end face of rotating disk 8.When described two handles 1 that declutch were reset mode, all to the outside deflection of towing machine framework, two handles 1 that declutch were splayed to the free end of two handles 1 that declutch each other.

The joint portion of one end of the described handle 1 that declutches and the electromagnet assembly 4 of folding brake is provided with the axially movable device present embodiment that rotation with the handle 1 that declutches changes pull bar 3 into and adopts following structure: be provided with the end face of the electromagnet assembly 4 of handle 1 joint that declutches that three equilateral triangles distribute and the center of circle all is positioned at hemispherical dimples 12 on the same circumference, be provided with the steel ball 13 that cooperates with it in the described pit 12, the described handle 1 that declutches comprises drop center wheel 14, be provided with three arc grooves 15 with the end face of the drop center wheel 14 of electromagnet assembly 4 junctions, described arc groove 15 is circumferentially middle wide to the narrow crescent-shaped slot of two gradual change, the width that described centre is wide in the middle of referring to equals the diameter of steel ball 13, and the position of the pit 12 on the circumferential centre of described three arc grooves 15 and the electromagnet assembly 4 is corresponding one by one.

Rotate the handle 1 that declutches, drive drop center wheel 14 rotations, drop center wheel 14 is by steel ball 13 liftings in arc groove 15 relative motions on steel ball 13 in being fixed on pit 12 and drop center wheel 14 end faces, so make with drop center wheel 14 near nut 2 liftings, thereby make pull bar 3 axially outwards move.

Below only be described, but can not be interpreted as it is restriction claim with regard to the utility model preferred embodiment.The utility model not only is confined to above embodiment, and its concrete structure allows variation, as: described bar handle 10 can also be installed on the periphery of rotating disk 8; Described retracing spring 7 can also be directly arranged in and declutches between handle 1 and the electromagnet assembly 4 and do not need to establish in addition reseting handle 11; The initial position of described two reseting handles 11 can be to be parallel to each other; Described arc groove 15 also can be the structure of the narrow and width gradual change of the wide tail end of head end; Deng.All various variations of being done in the protection domain of the utility model independent claims are all in protection domain of the present utility model.

Claims

1, a kind of long-range device that declutches of folding brake, it is characterized in that: it comprises two handles that declutch (1), each end of described two handles that declutch (1) is linked in respectively on the inboard folding brake of nut (2) pull bar (3) separately, the joint portion of the electromagnet assembly (4) of this end of the described handle that declutches (1) and folding brake is provided with the axially movable device that the rotation of the handle that declutches (1) is changed into pull bar (3), the other end of the described handle that declutches (1) is that the end of the heart yearn (5) of free end and drag-line is fixed, the declutch end of sleeve pipe (6) of the free end of handle (1) and drag-line of described another root is fixed, be provided with two retracing springs (7) between the electromagnet assembly (4) of described two handles that declutch (1) and folding brake, the head end of the heart yearn of described drag-line (5) is on the rotating disk (8) of remote control device, the head end of the sleeve pipe of described drag-line (6) is fixed on the frame (9) of remote control device, and described rotating disk (8) is provided with bar handle (10).

2, the long-range device that declutches of folding brake according to claim 1, it is characterized in that: described rotating disk (8) is provided with bar handle (10) and refers to, the end face of described rotating disk (8) is provided with a plurality of tapped bore that are used to install bar handle (10), described bar handle (10) is provided with at least two through holes that supply binding bolt to pass, and at least two binding bolts pass through hole bar handle (10) is fixed on the end face of rotating disk (8).

3, the long-range device that declutches of folding brake according to claim 1, it is characterized in that: be respectively equipped with two retracing springs (7) between the electromagnet assembly (4) of described two handles that declutch (1) and folding brake and refer to, described two handles that declutch (1) also comprise two reseting handles (11), respectively are provided with a retracing spring (7) between described two reseting handles (11) and the electromagnet assembly (4).

4, the long-range device that declutches of folding brake according to claim 1, it is characterized in that: described two handles that declutch (1) are when being reset mode, declutch the free end of handle (1) all to the outside deflection of the framework of towing machine, and two handles that declutch (1) are splayed each other.

5, the long-range device that declutches of folding brake according to claim 1, it is characterized in that: the joint portion of the electromagnet assembly (4) of this end of the described handle that declutches (1) and folding brake is provided with the axially movable device that rotation with the handle that declutches (1) changes pull bar (3) into and refers to, be provided with the end face of the electromagnet assembly (4) of the handle that declutches (1) joint that three equilateral triangles distribute and the center of circle all is positioned at hemispherical dimples (12) on the same circumference, be provided with the steel ball (13) that cooperates with it in the described pit (12), the described handle that declutches (1) comprises drop center wheel (14), be provided with three arc grooves (15) with the end face of the drop center wheel (14) of electromagnet assembly (4) junction, described arc groove (15) is circumferentially middle wide to the narrow crescent-shaped slot of two gradual change, the width that described centre is wide in the middle of referring to equals the diameter of steel ball (13), and the position of the pit (12) on the circumferential centre of described three arc grooves (15) and the electromagnet assembly (4) is corresponding one by one.

6, the long-range device that declutches of folding brake according to claim 5, it is characterized in that: the axial radii of described pit (12) is the radius of steel ball (13), and the axial radii of the circumferential centre of described arc groove (15) is the radius of steel ball (13).