JP5278131B2 - Elevator shock absorber return test equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a return testing device of a shock absorber for an elevator, dispensing with a shortcircuit of a safety device, capable of testing in an ordinary travel range, being not a long size material and not combustibles, simple in attachment-detachment, and easy in handling. <P>SOLUTION: This return testing device 14 of the shock absorber for the elevator is provided with a car 1 of the elevator, a counterweight 3, a main rope 7 for mutually liftably moving both in the inverse direction by suspending the car and the counterweight, and a balance rope 12 connected between a lower part of the car and a lower part of the counterweight and compensating for a weight unbalance of the main rope caused by the lifting movement of the car, and has an installation part 17 detachably installed on the balance rope in a return test of the shock absorber 11, a compression piece 16 arranged in the installation part and compressing the shock absorber from above by lowering in this ordinary travel range in the return test of the shock absorber, and an installing means 19 for detachably installing the installation part on the balance rope. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to an elevator shock absorber return test apparatus.

  Conventionally, in an elevator shock absorber return test device, in order to check the return time of the buffer plunger, the safety device is short-circuited, and the buffer plunger is compressed with a car or a counterweight. It is confirmed by a method of compressing within a normal traveling range by interposing a square member made of a long object in between (for example, see Patent Document 1).

JP-A-9-194155

  In the conventional method of short-circuiting the safety device, since the lifting body passes through the part of the guide rail that does not normally pass, the part of the guide rail is dirty with dust etc., which may cause failure, There is a problem of forgetting to return the safety device. Moreover, in the prior art using a square bar, there exist problems, such as the handling and storage place, because a square bar is a long thing or it is a combustible thing. In particular, in the high-speed elevator shock absorber, the buffer stroke becomes long, so that the square material to be used becomes a considerable length, which is difficult to apply in practice.

  This invention has been made to solve the above-mentioned problems, and does not require a short circuit of the safety device, can be tested in a normal traveling range, is neither a long object nor a combustible object, and is easy to attach and detach. An elevator shock absorber return test apparatus that is easy to handle is provided.

In the elevator shock absorber return test device according to the present invention, the elevator car, the counterweight, the car and the counterweight are suspended, and the main rope for moving the two up and down in the opposite directions and the lower part of the car are balanced. An elevator shock absorber return test apparatus connected to a lower part of a weight and provided with a balance rope for compensating for the weight unbalance of the main rope accompanying the up-and-down movement of the car, and returning the elevator shock absorber a mounting portion which is detachably attached to the rope balance during the test, provided on the mounting portion, a compression piece which descends within the normal running range of the car at the time of return test elevator shock absorber is compressed from above buffer for an elevator And an attachment means for detachably attaching the attachment portion to the balance rope.

  In addition, the mounting portion is a vertical surface portion parallel to the direction in which the balance rope is disposed, a side surface portion that is bent from both sides of the vertical surface portion toward the balance rope side, and accommodates the balance rope inside, and an anti-compression one side of both side surface portions The attachment means is a contact plate that is inserted into the contact plate insertion hole and is brought into contact with the counter compression piece side of the balance rope.

  Moreover, the partition plate which distributes a plurality of balance ropes right and left equally is provided in the back center part of the vertical surface part.

  In addition, an elastic body is provided in a portion that contacts the counter rope on the back surface of the vertical surface portion.

  Moreover, the elastic body is provided in the part which contacts the balance rope of the backing plate.

The compression piece is supported to protrude horizontally to the vertical surface portion of the mounting portion, and a flat surface portion for compressing from above into contact with the head of the elevator buffer when returning test elevator shock absorber, the flat surface portion bent from both sides downwards, in which is composed of a both side surfaces for accommodating a shock absorber of the head elevator inside a diameter equal to the inner width of the elevator shock absorber.

  According to this invention, the safety device is not required to be short-circuited, and the return test of the elevator shock absorber can be performed within the normal traveling range of the car, and it is not necessary to use a long object and is not combustible. In addition, there is an effect that it can be easily attached to and detached from the balancing rope and is easy to handle.

BRIEF DESCRIPTION OF THE DRAWINGS It is a schematic block diagram which shows the whole structure of the elevator apparatus provided with the return test apparatus of the elevator buffer in Example 1 of this invention. It is a side view which shows the principal part structure of the return test apparatus of the elevator buffer in Example 1 of this invention. It is a top view which shows the principal part structure of the return test apparatus of the elevator buffer in Example 1 of this invention. It is a perspective view which shows the principal part structure of the return test apparatus of the elevator buffer in Example 1 of this invention. It is a perspective view which decomposes | disassembles and shows the principal part structure of the return test apparatus of the elevator buffer in Example 1 of this invention.

  In FIG. 1, 1 is an elevator car, 2 is a car suspension car provided on the upper part of the car 1, 3 is a counterweight, 4 is a counterweight suspension car provided on the upper part of the counterweight 3, and 5 is a hoisting machine. , 6 is a baffle, 7 is a main rope which is fixed to the upper part of the hoistway and is wound around the car suspension car 2, the hoisting machine 5, the baffle car 6 and the counterweight suspension car 4, and the other end is raised and lowered. It is fixed to the upper part of the road, and the car 1 and the counterweight 3 are moved up and down in opposite directions. 8 is a governor rope provided at the upper part of the hoistway, 9 is a governor rope tension car provided at the lower part of the hoistway, 10 is a governor rope wound around the governor 8 and the governor rope tension car 9, The elevator shock absorber is provided at the lower part of the hoistway immediately below the counterweight 3. Although not shown, a car-side elevator shock absorber is provided at the lower part of the hoistway immediately below the car 1. A balance rope 12 is connected between the lower end portion of the car 1 and the lower end portion of the counterweight 3, and has a long up-and-down stroke as in a high-speed elevator, for example. It is provided when it is necessary to compensate. A balance wheel 13 is provided at the lower part of the hoistway, on which a balance rope 12 is wound. Reference numeral 14 denotes a return test device for the elevator shock absorber 11 which is detachably attached to the balance rope 12. Since the return test device 14 for the elevator shock absorber 11 is detachable from the balance rope 12, it can be used as a return test device for the balance weight side elevator shock absorber or the elevator shock absorber on the car side. It can also be used as a return test device.

  2 to 5 show the structure of the return test apparatus 14. 15 is a buffer plunger of the elevator shock absorber 11, and 16 is a compression piece of the return test device 14 that lowers during the return test and presses the head of the buffer plunger 15 from above, and its side view is substantially U-shaped. Presents. The compression piece 16 has a flat surface portion 16a in which the center of the tip portion contacts the head portion of the buffer plunger 15, and is bent downward from both sides of the flat surface portion 16a so as to have an inner diameter substantially equal to the diameter of the buffer plunger 15. It has a width dimension, and is composed of both side surface portions 16b that accommodate the buffer plunger 15 head inside. Reference numeral 17 denotes an attachment portion of the return test apparatus 14 that is detachably attached to the balance rope 12 and has a U-shape in plan view. The attachment portion 17 supports the compression piece 16 so as to protrude in the horizontal direction, and extends to the balance rope 12 side from both sides of the vertical surface portion 16a and the vertical surface portion 17a extending in parallel with the direction in which the plurality of balance ropes 12 are disposed. A side plate 17b that is bent sideways and accommodates the balance rope 12 inside, a contact plate insertion hole 17c provided at the lower end of the side plate 17b so as to face each other on the side of the anti-compression piece 16; The partition plate 17d is provided at the center of the back surface of the surface portion 17a and prevents the inclination of the compression piece 16 by distributing the balance rope 12 equally to the left and right. Reference numeral 18 denotes an elastic body made of rubber or the like affixed to a portion of the back surface wall of the vertical surface portion 17a that comes into contact with the balance rope 12, and 19 denotes a lower end portion of both side surface portions 17b that is provided to face each other on the side of the anti-compression piece 16. The contact means is made of a contact plate inserted between the contact plate insertion holes 17c and is brought into contact with the counter compression piece 16 side of the balance rope 12. Reference numeral 20 denotes an elastic body made of rubber or the like affixed to the balance rope 12 side of the backing plate 19.

Next, an operation test of the elevator shock absorber return test apparatus will be described.
First, in order to confirm the return time of the buffer plunger 15 of the elevator shock absorber 11, the return test device 14 is detachably attached to the balance rope 12. In this case, after the balance rope 12 is accommodated between the back surface of the vertical surface portion 17a and the both side surface portions 17b of the mounting portion 17 of the return test apparatus 14, the lower end portions of the both side surface portions 17b are opposed to the anti-compression piece 16 side. Attachment and fixing are performed by inserting a contact plate 19 between the provided contact plate insertion holes 17c. At this time, the balance rope 12 is clamped and fixed between the mounting portion 17 and the backing plate 19, and an elastic body 18 made of rubber or the like is attached to the portion of the back wall of the vertical surface portion 17a where the balance rope 12 abuts. In addition, since the elastic body 20 made of rubber or the like is attached to the balance rope 12 side of the contact plate 19, the return test apparatus 14 is firmly attached to the balance rope 12. Therefore, it is possible to fully compress the buffer plunger 15 of the elevator shock absorber 11 by lowering the compression piece 16 of the return test device 14 only by moving the car 1 up and down within the normal traveling range. It becomes. Since the return test device 14 is detachably attached to the balance rope 12, it is possible to perform a return test on both the car-side shock absorber and the counterweight-side shock absorber.

  According to the present invention, unlike the conventional method of short-circuiting the safety device, the elevating body does not pass through the portion of the guide rail that is not normally passed, so that the failure is induced by the dirty portion of the guide rail. There is nothing. In addition, there is no problem of combustible materials because no square material is used. Moreover, in the buffer for high-speed elevators, the buffer stroke becomes very long, but it can still be handled easily.

DESCRIPTION OF SYMBOLS 1 Elevator car 2 Car suspension car 3 Balanced weight 4 Balanced weight suspension car 5 Hoisting machine 6 Warping car 7 Main rope 8 Speed governor 9 Governor rope tension car 10 Governor rope 11 Elevator shock absorber 12 Balance rope 13 Balance car 14 Return test device 15 Buffer plunger of the shock absorber 16 Compression piece 16a of the return test device Flat surface portion 16b Both side surface portions 17 Mounting portion of the return test device 17a Vertical surface portion 17b Both side surface portions 17c Abutting plate insertion hole 17d Partition plate 18, 20 Elastic body 19 Contact plate (mounting means)

Claims (6)

An elevator car, a counterweight, a main rope that suspends the car and the counterweight and moves them up and down in opposite directions, and a lower part of the car and a lower part of the counterweight, connected to the car. An elevator shock absorber return test apparatus provided with a balance rope that compensates for the weight unbalance of the main rope accompanying the up and down movement of the elevator rope,
An attachment part that is detachably attached to the balance rope during a return test of the elevator shock absorber;
Provided in the mounting portion, a compression piece the decreasing at the normal running range of the car at the time of return test of the shock absorber for the elevator to compress from above the buffer for the elevator,
An attachment means for detachably attaching the attachment portion to the balance rope;
An elevator shock absorber return test apparatus comprising:   The mounting portion includes a vertical surface portion parallel to the direction in which the balance rope is disposed, a side surface portion that is bent from both sides of the vertical surface portion toward the balance rope side, and accommodates the balance rope inside, and an anti-compression of the both side surface portions. It is composed of a contact plate insertion hole provided opposite to each other on one side, and the attaching means is a contact plate inserted into the contact plate insertion hole and abutted against the counter compression piece side of the balance rope. The elevator shock absorber return test apparatus according to claim 1.   The return test device for an elevator shock absorber according to claim 2, wherein a partition plate that distributes a plurality of balancing ropes equally to the left and right is provided at the center of the back surface of the vertical surface portion.   The elevator shock absorber return test apparatus according to claim 2 or 3, wherein an elastic body is provided in a portion of the back surface of the vertical surface portion that comes into contact with the balancing rope.   The return test device for an elevator shock absorber according to any one of claims 2 to 4, wherein an elastic body is provided in a portion of the contact plate that abuts against the balance rope. Compression piece is supported to protrude horizontally to the vertical surface portion of the mounting portion, and a flat surface portion for compressing from above into contact with the head of the elevator buffer when returning test elevator shock absorber, both sides of the flat surface portion claims bent downwards, characterized in that it is composed of a both side surface portions which have an inner width equal to the diameter of the damper for the elevator for accommodating a shock absorber for the head the elevator inwardly from The return test device for an elevator shock absorber according to any one of claims 1 to 5.

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