JP2000128451A - Disassembling jig for magnet braking device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent arms from being fluctuated when a magnet braking device is disassembled. SOLUTION: Arms are so constituted that they can be held at specified intervals respectively by the use of a bar-like body 2, a support body 1 provided with nuts 10A and 10B threadedly engaged with the bar-like body 2, fastening parts 10 through which one end parts of the bar-like body 2 of the support body 1 is inserted so as to be fastened with the nuts 10A and 10B, bar-like members 7A and 7B so set in parallel with each other as to be the size W1 of width capable of being engaged with the arms, locking members 9 and 9A on which the engaged arms are locked, a first holding body 5 provided with wing nuts 8 and 8A holding the arms, the fastening parts 10 through which the other end of the bar-like body 2 of the support body 1 is inserted so as to be fastened with the nuts 10A and 10B, the bar-like members 7A and 7B so set in parallel with each other as to be the size W1 of width capable of being engaged with the arms, and a second holding body 6 provided with the locking members 9 and 9A on which the engaged arms are locked.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a jig for disassembling a magnet brake device used for disassembling a magnet brake device provided in a hoisting machine for driving an elevator or the like.

[0002]

2. Description of the Related Art A magnet brake device is provided, for example, on a hoisting machine that drives an elevator car up and down via a main rope, and a brake drum that rotates with the driving of the hoisting machine and an outer periphery of the brake drum. A pair of arms located on the side, a brake shoe integrally attached to each of these arms, a rod to which these arms are displaceably attached, and a displacing of these arms by elastic force to brake the brake shoes The brake spring includes a brake spring that presses against the drum, and a magnet device that separates the brake shoe from the brake drum against the elastic force of the brake spring. Also, a rod of this magnet brake device has a spring seat abutting on the end of the braking spring, a fastening nut for fastening the braking spring via the spring seat,
A scale plate and the like are attached.

[0003] In the magnetic brake device constructed as described above, the braking spring displaces the arm to the brake drum side by the resilient force, and the brake shoe is pressed against the brake drum to generate a braking force, thereby stopping the car. Let it. Further, the magnet device displaces the arm against the elastic force of the brake spring by the electromagnetic force, releases the brake force by separating the brake shoe from the brake drum, and allows the car to move up and down again.

Conventionally, when disassembling the magnet brake device constructed as described above, first, one
A person holds down one arm of the pair of arms, and another operator holds down the other arm so that the arm does not swing. Next, while one of these two workers holds down the arm, the tightening nut of the brake spring attached to the rod, the brake spring,
Remove the spring seat, scale plate, etc. Then, the rod was pulled out of the arm. In addition, when disassembling in this way, if the work is not careful, when the tightening nut of the brake spring is removed from the rod, the brake spring will
Due to the resilience or the reaction when the arm swings unexpectedly, it may jump out of the rod. As a result, the spring seat, the scale plate, and the like that have been pressed by the braking spring may be pushed out and scattered.

[0005]

As described above, in the prior art, when disassembling the magnet brake device, two people work to disassemble the magnet brake device without disturbing each of the pair of arms. This requires a worker and increases the number of man-hours. If the coordination between the two workers is lost during the disassembly work, when the tightening nut of the brake spring is removed, the brake spring pops out of the rod due to the elastic force, and time is required for the work. There was a problem of hanging.

An object of the present invention is to provide a jig for disassembling a magnet brake device which can prevent the arm from swinging when disassembling the magnet brake device.

[0007]

In order to achieve the object of the present invention, a first aspect of the present invention provides a brake drum which rotates with the driving of a hoist, and is located on the outer peripheral side of the brake drum. A pair of arms, a brake shoe provided on the inner peripheral side of each of these arms, a rod on which each of the pair of arms is displaceably mounted, and attached to this rod, and the arm is resiliently Displacing the brake shoe against the brake drum to generate a braking force, and displacing the arm against the resilient force of the braking spring by electromagnetic force. And a magnet device for releasing the braking force by separating from the magnet brake device used for disassembling the magnet brake device. A disassembly jig for a storage device, comprising a first holder and a second holder for holding each of the pair of arms, wherein the first holder and the second holder are fixed to each other. And a support that supports at intervals of.

According to the first aspect of the present invention, when disassembling the magnet brake device, one of the pair of arms of the magnet brake device is held by the first holding member, and the other arm is held by the second holding member. With the holder. Then, the first holder and the second holder are supported by a support at a predetermined interval.

With this configuration, the pair of arms can be always held at a constant force by being sandwiched between the first holding member and the second holding member that are supported by the support at a predetermined interval. Therefore, the swinging movement of the arm can be prevented without the two workers individually pressing the arm. That is, only one worker is required, and this worker can remove the fastening nut, the spring seat, the braking spring, the scale plate, and the like from the rod of the magnet brake device, and can easily pull out the rod.

According to a second aspect of the present invention, in the first aspect of the present invention, each of the first holding member and the second holding member is provided on the support member such that a distance between the first holding member and the second holding member can be adjusted. It is characterized by being able to.

According to a third aspect of the present invention, in the first or second aspect of the present invention, the support is provided with fastening means for fastening each of the first holder and the second holder. Features.

According to a fourth aspect of the present invention, in the invention according to any one of the first to third aspects, each of the first holding member and the second holding member is arranged such that each of the first holding member and the second holding member extends from an outer peripheral side of the pair of arms. Abutting rod members provided side by side at predetermined intervals along the longitudinal direction of the arms, and provided between these bar members arranged side by side, and these rod members can be fitted with the arms. And a locking member for locking the arms at a predetermined interval.

According to a fifth aspect of the present invention, in the invention according to any one of the first to fourth aspects, fixing means for fixing at least one of the first holding body and the second holding body to the arm. It is characterized by having.

The invention according to claim 6 is characterized in that, in the invention according to claim 5, the fixing means comprises a thumbscrew screwed to the rod-shaped member to clamp the arm.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A jig for disassembling a magnet brake device according to the present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view showing an embodiment of a jig for disassembling a magnet brake device of the present invention, and FIG.
3 is a front view showing a state in which the embodiment shown in FIG. 2 is mounted on a magnet brake device, and FIG. 3 is a front view showing a state in which a rod of the magnet brake device shown in FIG. 2 is removed.

The present embodiment is used, for example, when disassembling a magnet brake device provided in a hoisting machine that drives an elevator car via a main rope, and is configured as follows. That is, as shown in FIG. 1, a first holding body 5 that holds an arm 4 of a magnet brake device 3 described later, and an arm 4A of the magnet brake device 3 described later.
, A rod-shaped body 2 into which the first holding body 5 is inserted from one end and the second holding body 6 is inserted from the other end, and the rod-shaped body 2 Nuts 10A and 10B which are screwed to the body 2 and fasten the first holding body 5 and the second holding body 6, respectively, and the distance between the first holding body 5 and the second holding body 6; And a support 1 that adjustably supports.

The first holder 5 has a hole through which the rod 2 of the support 1 is inserted, and the nuts 10A, 10B.
Fastening portion 10 fastened to the rod 2 of the support 1 by
Rod members 7A and 7B which are provided integrally with the fastening portion 10 and are arranged side by side along the longitudinal direction of the arm 4 at intervals of a width W1 at which the arm 4 can be fitted;
4A is fixed at the interval width dimension W1, and the arm 4 is screwed to the locking members 9, 9A for locking the arm 4 from the outer peripheral side of the arm 4 and the rod-shaped members 7A, 7B in directions facing each other. Fixing means for fixing the first holding body 5 to the arm 4 by sandwiching the holding means 4, ie, thumb screws 8, 8A.
Is provided.

The second holder 6 has a structure similar to that of the first holder 5 except that the thumb screws 8 and 8A are removed. That is, a fastening portion 10 having a hole through which the rod 2 of the support 1 is inserted, and being fastened to the rod 2 of the support member 1 by nuts 10A and 10B, an arm 4A provided integrally with the fastening portion 10 The rods 7A and 7B are arranged side by side along the longitudinal direction of the arm 4A at intervals of W1 at which the rods can be fitted, and the rods 7A and 7B are fixed to the interval width W1 and the arm 4A The locking members 9 and 9A for locking the holes and the rod-shaped members 7A and 7B are provided with holes into which the thumb screws 8 and 8A can be screwed.

The magnet brake device 3 to which the above-described embodiment is mounted is configured as follows. That is, as shown in FIG.
The vehicle includes a brake drum 11 that rotates in accordance with driving of a hoist (not shown), and a pair of arms 4 and 4A that are positioned so as to sandwich the brake drum 11 from the outer peripheral side.

Each of the pair of arms 4 and 4A is displaceably attached to a rod 15. Brake shoes 12, 12A are integrally provided on the inner peripheral side of each of the pair of arms 4, 4A.

A braking spring 14 is disposed between one end of the rod 15 and the arm 4. The rod 15
A braking spring 14A is arranged between the other end of the arm 4A and the arm 4A. Each of the braking springs 14 and 14A displaces each of the pair of arms 4 and 4A toward the brake drum 11 by an elastic force, and the brake drum 1
The brake shoes 12 and 12A are brought into pressure contact with each other to generate a braking force.

A magnet device 13 is provided near the center of the rod 15. This magnet device 13
The electromagnetic force displaces each of the pair of arms 4 and 4A against the elastic force of the braking springs 14 and 14A, and releases each of the brake shoes 12 and 12A from the brake drum 11 to release the braking force. is there.

A spring seat 16 is in contact with one end of the braking spring 14 from one end of the rod 15. The brake spring 14 is attached to the rod 15 via a spring seat 16 and a nut 17 for tightening the brake spring. Similarly to the brake spring 14, a spring seat 16A is in contact with one end of the brake spring 14A from the other end of the rod 15. The braking spring 14A is attached to the rod 15 via a spring seat 16A and a braking spring fastening nut 17A. A scale plate 18 is provided near the brake spring 14 along the longitudinal direction of the brake spring 14.

This embodiment is mounted on the above-described magnet brake device 3 as follows. As shown in FIG. 2, the fastening portion 10 of the first holder 5 inserted from one end of the rod 2 of the support 1 is provided with nuts 10A and 10A.
B is fastened.

The first holding member 5 thus supported
Is in contact with the arm 4 from the outer peripheral side of the arm 4. That is, the arm 4 is connected to the rod-shaped member 7 of the first holder 5.
A, 7B. The fitted arm 4 abuts on the locking members 9 and 9A at two positions on the outer edge portion of the arm 4, for example, and is locked.

The locked arm 4 includes, for example, a bar-shaped member 7.
A and 7B are sandwiched between two thumb screws 8, 8A screwed to the respective screws. Thus, the arm 4 is held by the first holder 5.

The fastening portion 10 of the second holder 6 inserted from the other end of the rod 2 of the support 1 is fastened by nuts 10A and 10B.

The second holding member 6 thus supported
Is in contact with the arm 4A from the outer peripheral side of the arm 4A. That is, the arm 4 </ b> A is connected to the rod 7 of the second holder 6.
A and 7B are fitted. The fitted arm 4A has a locking member 9 at two positions on its outer edge.
9A contacts and is locked. Thus, the arm 4A is held by the second holding body 6.

In the embodiment constructed as described above, when disassembling the magnet brake device 3, the operator first attaches the fastening portion 10 of the first holder 5 to one end of the rod 2 of the support 1. Insert the first holder 5 into the nut 10A,
Fastened by 10B. Then, the first worker
The arm 4 is fitted between the rod-shaped members 7A and 7B of the holding member 5 and the first holding member 5 is arranged so that the arm 4 is locked to each of the locking members 9 and 9A. In this state,
Tighten the thumb screws 8, 8A. Thus, the first holder 5 is fixed to the arm 4.

Next, the fastening portion 10 of the second holder 6 is inserted into the other end of the rod 2 of the support 1. 2nd penetrated
Is moved so as to approach the arm 4A, and the arm 4A is moved between the rod-shaped members 7A and 7B of the second holder 6.
Are fitted into each of the locking members 9 and 9A.
The second holder 6 is arranged so that A is locked. That is, the second holder 6 is arranged so that the arm 4A is held at an appropriate position. In this state, nuts 10A and 10B
And the second holder 6 is fastened. In this way,
The mounting of this embodiment shown in FIG. 1 is completed.

When the present embodiment is mounted on the magnet brake device 3, each of the pair of arms 4 and 4A is always held by the first holder 5 and the second holder 6 with a constant force. Does not shake.

Therefore, the operator has to tighten the nuts 17 and 17A for tightening the brake springs, the spring seats 16 and 16A, and the brake springs 14 and 1.
4A, the scale plate 18 and the like are removed, and the rod 15 is pulled out. The magnet brake device 3 from which the rod 15 has been pulled out is in the state shown in FIG.

As described above, in this embodiment, when the magnet brake device 3 is disassembled, the pair of arms 4 and 4
A is always held with a constant force so as to be sandwiched between the first holding member 5 and the second holding member 6 from the outer peripheral side.
As a result, two workers can individually move the pair of arms 4, 4
It is possible to prevent the arms 4 and 4A from swaying without pressing each of A. Therefore, one worker removes the nuts 17 and 17A for tightening the brake springs, the spring seats 16 and 16A, the brake springs 14 and 14A, the scale plate 18, and the like from the magnet brake device 3, and removes the rod 1
5 can be easily pulled out. Thereby, the number of work steps can be reduced, the work can be facilitated, and the required work time can be shortened.

Further, with the first holder 5 fixed to the rod 2 of the support 1, the second holder 6 is inserted through the rod 2, and in this state, the second holder 6 is moved. Since the distance between the first holding member 5 and the second holding member 6 is adjusted,
Each of the pair of arms 4 and 4A can be held at an appropriate position, and each of the arms 4 and 4A can be easily fitted from the outer peripheral side.

The first holder 5 and the second holder 6
And the support 1, which is convenient for carrying and storing.

The first holder 5 and the second holder 6
Are capable of fitting the pair of arms 4 and 4A from the outer peripheral side, and furthermore, by providing the locking members 9 and 9A for locking the respective arms 4 and 4A, the first holding member 5 And the arms 4 and 4 of the second holding body 6 respectively.
The positioning of each of the arms A is simple, and the pair of arms 4 and 4A can be reliably held.

Further, since the first holding fifth and the second holding members 6 are formed in the same structure, only one kind needs to be manufactured, and the manufacturing is easy.

In the present embodiment, the thumb screws 8, 8A are provided on the rod members 7A, 7B of the first holder 5 so as to face each other, but the present invention is not limited to this. Instead, a thumb screw may be provided on one of the rod members 7A and 7B, for example, on the rod member 7A, and the arm may be held between the thumb screw and the rod member 7B.

In this embodiment, the first holding member 5 is provided with the thumb screws 8, 8A. However, the present invention is not limited to this. It is also possible to adopt a configuration in which the thumb screws 8 and 8A are provided on both of the holding members 6 to securely fix the second holding member 6 to the arm 4A.

[0041]

As described above, in the invention according to each claim,
When the magnet brake device is disassembled, the pair of arms are always held with a constant force by the first holding member and the second holding member, so that the arm swings without the operator pressing the arm. Can be prevented. Therefore, the disassembly work of the magnet brake device can be performed by one person, and thus the number of work steps can be reduced as compared with the related art.

Further, the operator can easily pull out the rod as compared with the related art, and the time required for the disassembling operation can be reduced as compared with the related art.

According to the fourth aspect of the present invention, each of the first holding member and the second holding member has a pair of rod-shaped members which can be fitted from the outer peripheral sides of the pair of arms, respectively.
Since each of these arms is provided with a locking member to be locked, each of the first holding body and the second holding body can be easily positioned with respect to each of the pair of arms, and each of the pair of arms can be positioned. Can be held more reliably.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of a jig for disassembling a magnet brake device of the present invention.

FIG. 2 is a front view showing a state where the embodiment shown in FIG. 1 is mounted on a magnet brake device.

FIG. 3 is a front view showing a state where a rod of the magnet brake device shown in FIG. 2 is removed.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 support 2 rod-shaped body 4 arm 4A arm 5 first holder 6 second holder 7A rod-shaped member 7B rod-shaped member 8 wing screw (fixing means) 8A wing screw (fixing means) 9 locking member 9A locking member DESCRIPTION OF SYMBOLS 10 Fastening part (fastening means) 10A Nut (fastening means) 10B Nut (fastening means) 11 Brake drum 12 Brake shoe 12A Brake shoe 13 Magnet device 14 Brake spring 14A Brake spring 15 Rod 16 Spring seat 16A Spring seat 17 Brake spring tightening Nut 17A Nut for tightening the brake spring 18 Scale plate

Claims (6)

[Claims] A brake drum that rotates in accordance with driving of a hoist; a pair of arms positioned on an outer peripheral side of the brake drum; a brake shoe provided on an inner peripheral side of each of the arms; A rod to which each of the pair of arms is displaceably attached, and a brake spring that is attached to the rod, displaces the arm by an elastic force, and presses the brake shoe against the brake drum to generate a braking force. A magnet device that displaces the arm against the elastic force of the braking spring by electromagnetic force, and separates the brake shoe from the brake drum to release the braking force. A jig for disassembling the magnet brake device, wherein each of the pair of arms is held. A magnet brake device comprising: a first holding member and a second holding member; and a support member for supporting the first holding member and the second holding member at predetermined intervals. Disassembly jig. 2. The magnet brake device according to claim 1, wherein each of the first holding member and the second holding member is provided on the support member such that a distance between the first holding member and the second holding member can be adjusted. Jig for disassembly. 3. A jig for disassembling a magnet brake device according to claim 1, wherein said support has a fastening means for fastening each of said first holder and said second holder. . 4. The first holding body and the second holding body abut on the outer peripheral sides of the pair of arms, respectively, and are arranged side by side at predetermined intervals along the longitudinal direction of the arms. A pair of rod-shaped members, and a pair of bar-shaped members provided between the juxtaposed rod-shaped members, the rod-shaped members being fixed at the predetermined interval to which the arms can be fitted, and engaging the arms. The jig for disassembling the magnet brake device according to any one of claims 1 to 3, further comprising a stop member. 5. The magnet brake device according to claim 1, further comprising fixing means for fixing at least one of the first holding member and the second holding member to the arm. Jig for disassembly. 6. The jig for disassembling a magnet brake device according to claim 5, wherein said fixing means comprises a thumb screw screwed into said rod-shaped member to clamp said arm.