JP5523214B2 - elevator - Google Patents

Description

  The present invention relates to an elevator equipped with a rope brake.

  An elevator rope brake is generally installed so as to grasp a portion of a hoisting rope located between a sheave and a deflector of the hoisting machine. The rope brake is provided with a movable brake plate. When the brake is installed or during maintenance, an operation of removing the movable brake plate from the rope brake body or conversely attaching to the body occurs.

  However, since the movable brake plate in the rope brake is attached to the lower surface of the hoisting rope, it can be moved in the space surrounded by the hoisting machine, machine beam, and rope brake body when installing or removing the movable brake plate. It is necessary to handle the brake plate. For this reason, the work is often performed in an unnatural and hard-to-force posture, and it is necessary to be careful not to drop the movable brake plate in the space where the rope between the machine beams passes through. It was an expensive work.

  Further, when the rope brake is large, the weight of the movable brake plate becomes heavy, so that it is necessary to work by two people. However, as described above, the space for handling the movable brake plate is a relatively narrow space surrounded by the hoisting machine, machine beam, and rope brake body. Standing separately on the left and right sides of the rope brake, two people had to lift the heavy brake plate while supporting the movable brake plate, and the worker had to lift the heavy load with an unreasonable posture. On the other hand, when installing the movable brake plate, the reverse is necessary. The movable brake plate must be transported to the front of the rope brake in an unreasonable posture, and similarly supported by two people from the left and right, and attached to the rope brake body. .

  In relation to the problem of workability, Patent Document 1 proposes means for moving the entire rope brake to a safe position where the operator can work easily during rope brake maintenance. However, even with this means, it is necessary to remove the movable brake plate from the rope brake body before the rope brake is moved, and the above-described problem of workability itself is not improved. There is also a problem that the arrangement of the rope brake in this means is limited.

Japanese Patent No. 4286048

  The present invention has been made in view of the above, and it is possible to avoid the problem of falling into the space where the rope passes through the machine beam without having to work in a difficult posture in handling the rope brake. The purpose is to provide.

  In order to achieve the above-described object, an elevator according to the present invention includes a hoisting machine that drives a rope, a plurality of machine beams that are disposed with a space through which the rope passes, and supports the hoisting machine, and the rope. Auxiliary portion including a rope brake provided along with, and a receiving beam arranged between the hoisting machine and the rope brake in plan view and extending across the space to communicate the plurality of machine beams Is provided.

  According to the elevator of the present invention, in handling the rope brake, it is possible to avoid working in a difficult posture and to avoid the problem of falling into a space where the rope passes through the machine beam.

It is a figure which shows the side surface regarding the hoisting machine vicinity of the elevator which concerns on embodiment of this invention. It is a figure which shows the back surface regarding the winding machine vicinity of the elevator which concerns on this Embodiment. It is a figure which expands and shows the auxiliary | assistant part and rope brake in FIG. It is a figure of the same aspect as FIG. 3 of the state in which the movable brake plate was received by the auxiliary | assistant part. It is a figure which shows the state in which the movable brake plate received by the cradle is moved horizontally along the receiving beam.

  Embodiments according to the present invention will be described below with reference to the accompanying drawings. In the drawings, the same reference numerals indicate the same or corresponding parts.

  FIG.1 and FIG.2 is a figure which respectively shows the side surface and back surface regarding the hoisting machine vicinity of the elevator which concerns on this Embodiment. The elevator is provided with a car in a hoistway (not shown), and a rope 1 is connected to the car, and the raising and lowering of the car is controlled via the rope 1.

  The rope 1 is wound around a sheave 3 and a deflector 4 of the hoist 2. One end of the rope 1 is connected to the car as described above, and the other end is connected to a counterweight (not shown). When the rope 1 is driven by the operation of the hoisting machine 2, the car and the counterweight are raised and lowered in opposite directions.

  As an example, the hoisting machine 2 is provided in a so-called machine room above the hoistway. More specifically, the hoisting machine 2 is supported by a plurality of machine beams 5. A pair of adjacent machine beams 5 are arranged apart from each other so as to open a predetermined space 6 in the direction of the rotation axis of the sheave 3 and the deflector 4. That is, the rope 1 wound around the sheave 3 or the like passes through the space 6 and extends to a car or a counterweight.

  On the machine beam 5, a rope brake 7 is attached. The rope brake 7 is provided along with the rope 1. In this embodiment, the rope brake 7 is a device that narrows the rope 1 and brakes the raising and lowering of the car.

  The rope brake 7 includes a main body 7a and a movable brake plate 7b. The movable brake plate 7b is movably provided on the main body 7a so as to selectively apply a braking force to the rope 1. The movable brake plate 7b is detachably attached to the main body 7a in view of inspection / replacement and the like.

  Brake shoe members are attached to the portions of the main body 7a and the movable brake plate 7b facing each other. When the brake is released, the movable brake plate 7b is sufficiently separated from the main body 7a, and the rope 1 can be moved between the two without receiving the interference of the brake shoe member. When the brake is actuated, the movable brake plate 7b moves so as to approach the main body 7a, whereby the portion of the rope 1 between the two is narrowed by the brake shoe member and braked by the frictional force.

  The portion of the rope 1 between the sheave 3 and the deflector wheel 4 extends with an inclination, and the pair of brake shoe members and the movable braking plate 7b are also provided with an inclination accordingly. The movable brake plate 7b is disposed on the lower side of the slope of the rope 1.

  On the machine beam 5, there is further provided an auxiliary portion 10 for assisting the work on the rope brake. The auxiliary portion 10 includes at least a receiving beam 11 and a receiving base 12 in the present embodiment.

  The auxiliary unit will be described in detail with reference to FIGS. As best shown in FIG. 1, the receiving beam 11 is disposed between the hoisting machine 2 (the sheave 3) and the rope brake 7 in plan view, and, as shown in FIG. The adjacent machine beams 5 are connected to each other. The cradle 12 is disposed below the rope 1 and temporarily supports the movable brake plate 7 b of the rope brake 7.

  The cradle 12 is supported by the receiving beam 11 and is movable along the receiving beam 11. In this regard, the receiving beam 11 has a guide groove 13 extending along its longitudinal direction, as shown in FIG. In the present embodiment, the guide groove 13 is defined by a mounting surface 11a formed in the receiving beam 11 and a pair of front and rear guide side surfaces 11b and 11c. The mounting surface 11a is an upward surface parallel to the machine beam 5 (usually horizontal). The pair of front and rear guide side surfaces 11b and 11c are surfaces that face each other with a rising interval from the front and rear edges of the mounting surface 11a. The mounting surface 11a and the pair of front and rear guide side surfaces 11b and 11c are arranged so as to form a U shape in a longitudinal section viewed from the side.

  On the other hand, a wheel 14 is provided at the bottom of the cradle 12, and the wheel 14 is accommodated in the guide groove 13 of the receiving beam 11 and can be rolled, and thereby, along the guide groove 13. Guided. With such a configuration, the cradle 12 is supported by the receiving beam 11 and moves along the receiving beam 11.

  Further, as shown well in FIG. 2, the cradle 12 does not exist over the entire width of the receiving beam 11, but is configured to have a width comparable to that of the rope brake 7 (particularly the movable brake plate 7b). .

  As shown in FIG. 3, the cradle 12 has at least a first bearing surface 12 a and a second bearing surface 12 b on the upper part thereof, and further a third bearing surface 12 c in the present embodiment. In the present embodiment, a receiving recess 15 is defined by the first receiving surface 12a, the second receiving surface 12b, and the third receiving surface 12c.

  The first bearing surface 12a is provided to be inclined by a predetermined receiving angle θR with respect to a direction parallel to the machine beam 5 (usually a horizontal direction). In this regard, first, the portion of the rope 1 between the sheave 3 and the deflector 4 is inclined and the movable brake plate 7b of the rope brake 7 is also disposed along the rope 1. , And are attached with an inclination at a predetermined assembly angle θB. The receiving angle θR indicating the inclination of the first bearing surface 12a is set to be smaller than the assembled angle θB indicating the inclination of the movable brake plate 7b.

  The second bearing surface 12b rises from the inclined lower edge of the first bearing surface 12a in the direction orthogonal to the surface 12a in the present embodiment. Similarly, the third bearing surface 12c rises from the upper edge of the first bearing surface 12a in the direction orthogonal to the surface 12a in the present embodiment. The second bearing surface 12 b and the third bearing surface 12 c extend toward the rope brake 7.

  With this configuration, the first receiving surface 12a, the second receiving surface 12b, and the third receiving surface 12c that define the receiving recess 15 are arranged in a U-shape in a longitudinal section viewed from the side.

  Next, the operation of the present embodiment configured as described above will be described. In the case of the rope brake, an operation of removing the movable brake plate from the brake main body or attaching it to the main body occurs during installation or maintenance. Since this work is performed in a space surrounded by the hoisting machine, machine beam, and brake body, until now, the worker had to be in an unnatural and difficult posture. Therefore, especially when the rope brake is large, the weight of the movable brake plate becomes heavy, so it is necessary to work by two people. Specifically, two workers stand separately on the left and right sides of the rope brake (left and right direction in FIG. 2), and the two people can move from one side of the rope brake while supporting the movable brake plate. The board had to be pulled out and set, and at least one of the workers (in some cases, both) lifted and moved the heavy object with a posture that was not workable. On the other hand, in the present embodiment, first, in the auxiliary portion 10, the cradle 12 travels along the cradle 11, and the cradle 12 is moved to the movable brake plate of the rope brake 7 as shown in FIG. Move to the front of 7b. Then, the movable brake plate 7b and the main body 7a are disconnected, and the movable brake plate 7b is temporarily received on the receiving base 12 as shown in FIG. 4 while utilizing the dropping action of the movable brake plate 7b. Give it. In this state, as shown in the order of (a), (b) and (c) in FIG. 5, the cradle 12 is caused to travel in a direction away from the rope brake 7. When the cradle 12 is finally moved to a position where the work is easy to perform, there, for example, inspection / repair / replacement work such as inspection / replacement of the brake shoe member or other work is performed. When the movable brake plate 7b is returned to the main body 7a or newly attached, the operation opposite to the above is performed. That is, after completing work such as inspection, repair, and replacement in a spacious work space in which the hoisting machine 2, the rope 1, the rope brake 7, etc. are difficult to interfere as shown in FIG. As shown in the order of (b) and (a) in FIG. 5, the cradle 12 is caused to travel toward the rope brake 7, and finally, as shown in FIG. 4, the cradle 12 is attached to the body 7 a. Move to the front. Then, the movable brake plate 7b is lifted and connected to the main body 7a, and the operation is finished.

  As described above, in the present embodiment, the receiving beam 11 extending over the space 6 through which the rope 1 passes through receives the load of the movable brake plate 7b, and the receiving beam 11 receives the load. Since the position of the movable brake plate 7b can be moved, when the movable brake plate 7b is moved from the front to the side of the main body 7a and from the side to the front, the operator is forced to take a difficult posture. In addition, the movable brake plate 7b can be handled without fear of the movable brake plate 7b dropping into the space 6. Further, the load of the movable brake plate 7b can be received by the receiving beam 11, and the position of the movable brake plate 7b can be moved along the receiving beam 11 while receiving the load. Therefore, the rope brake is large and the weight of the movable brake plate is large. Even if it is larger, one worker can handle the movable brake plate 7b.

  In addition, if a cradle 12 that temporarily receives the movable brake plate 7b is provided and the cradle 12 is configured to be movable along the receiving beam 11, the movable brake plate 7b that is disconnected is handled. Each of the step and the step of moving the movable brake plate 7b to an appropriate position can be executed more smoothly and reliably. Furthermore, if the guide beam 13 is provided in the receiving beam 11 and the wheel 14 guided by the guide groove 13 is provided in the pedestal 12, work labor can be greatly reduced. When it is large, it is very useful for completing the work by one worker. Further, the cradle 12 has a receiving recess 15, and the receiving recess 15 is inclined at least at a receiving angle θR that is smaller than the assembled angle θB of the movable brake plate 7 b, and If it is configured to be defined by the second bearing surface 12b rising from the lower edge, there is an advantage that the movable brake plate 7b can be attached to and detached from the main body 7a with less effort and action.

  Although the contents of the present invention have been specifically described with reference to the preferred embodiments, various modifications can be made by those skilled in the art based on the basic technical idea and teachings of the present invention. It is self-explanatory.

In the said embodiment, although the aspect of contact | abutting between a receiving stand and a receiving beam was a wheel and a groove | channel, this invention is not specifically limited to this. Therefore, for example, a low friction material such as resin can be attached to one or both of the cradle and the cradle, or the cradle and the cradle may be in direct contact with each other without providing anything.
In the above embodiment, a guide rail may be used instead of the guide groove formed in the receiving beam.
Furthermore, the guide groove or the guide rail can be provided not on the receiving beam side but on the receiving table side.

Moreover, this invention can also be implemented without providing a cradle. In other words, it is possible to receive the movable braking plate by the receiving beam connecting the machine beam so as to straddle the space through which the rope passes, and then pull out the movable braking plate sideways along the receiving beam. Even in such a case, it is possible to handle the rope brake while avoiding falling into a space through which the rope has passed without performing a work in a difficult posture, and even one worker can complete the work.
Further, the receiving beam is not limited to a U-shaped form, and may be a simple flat plate or an L-shaped form, for example.

  1 rope, 2 hoisting machine, 5 machine beam, 6 space, 7 rope brake, 7a body, 7b movable brake plate, 10 auxiliary part, 11 receiving beam, 12 cradle, 12a first bearing surface, 12b second bearing surface , 13 guide grooves, 14 wheels.

Claims (4)

A hoist that drives a rope;
A plurality of machine beams arranged to open a space through which the rope passes, and supporting the hoisting machine;
A rope brake provided along the rope;
An auxiliary unit including a receiving beam arranged between the hoisting machine and the rope brake and extending across the space to communicate the plurality of machine beams, in plan view ,
The rope brake includes a detachable movable brake plate that is disposed below the rope and selectively applies a braking force to the rope.
The auxiliary portion includes a cradle that is disposed below the rope and handles the movable braking plate,
The elevator is supported by the receiving beam . The cradle, the receiving elevator according to claim 1 is movable along the beam. The receiving beam has a guide groove extending along its longitudinal direction,
The elevator according to claim 2 , wherein the cradle has wheels, and the wheels are guided by the receiving beams by rolling in the guide grooves. The movable brake plate is attached with an inclination at a predetermined assembly angle,
The cradle includes a first charge surface which is inclined at a small receiving angle than the set up angle, claim 1 has at least a second charge surface that rises from the lower edge of the first charge surface The elevator according to any one of 3 above .

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