JP2012148831A - Device and method to disassembly and assembly brake of elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a brake disassembly and assembly device and a brake disassembly and assembly method of an elevator which can check a part that slides each other among a fulcrum pin and a lever without removing members such as a spring and a rod, and which can easily assembly a brake device.SOLUTION: This device is provided at the brake device 1 of the elevator and has a rigid body 14 which prevents a pair of levers 4a and 4b from opening in disassembly or assembly of the brake device 1 is, each of the levers 4a and 4b is formed by being divided, and has upper levers 10a and 10b which are positioned at an upper side and which have through-holes through which the rod 7 is inserted and lower levers 11a and 11b which are positioned below the upper levers 10a and 10b and which are supported by the fulcrum pins 5a and 5b to be able to rotate, and the each of the lower levers 11a and 11b are formed at a lower end in a notch shape and include concave parts 111a and 111b that engage with the fulcrum pins 5a and 5b.

Description

  The present invention relates to an elevator brake disassembly and assembly apparatus and a brake disassembly and assembly method for disassembling and assembling a hoisting machine brake device.

  FIG. 8 is a front view showing a configuration of a brake device provided in a conventional elevator brake disassembly and assembly device.

  In general, as shown in FIG. 8, a hoisting machine brake device 1 provided in an elevator includes a brake drum 2 connected to a hoisting machine (not shown) and a pair of shoes 3a slidably contacted with the brake drum 2. , 3b and a pair of levers 4a, 4b disposed on both sides of the brake drum 2 and supporting the shoes 3a, 3b, respectively. The brake device 1 serves as a stand for the hoisting machine, and is provided at a machine base 16 that supports the hoisting machine from below, a through hole (not shown) of the machine base 16, and lower ends of the pair of levers 4a and 4b. It has a pair of fulcrum pins 5a and 5b that are inserted through holes not shown and support the pair of levers 4a and 4b in a rotatable manner.

  Further, the brake device 1 is provided between a pair of levers 4a and 4b, and an electromagnet device 6 that pushes the levers 4a and 4b away from the brake drum 2, and the electromagnet device 6 and the levers 4a and 4b. The rod 7 is inserted into a through hole (not shown) provided in the upper portion, and the spring 8 is provided at one end of the rod 7 and biases the spring force in a closing direction with respect to the pair of levers 4a and 4b. ing. The brake device 1 is provided with a pair of push bolts 9a and 9b that are inserted into through holes (not shown) at the upper ends of the levers 4a and 4b and support the electromagnet device 6 from both sides.

  In the brake device 1 described above, when the power of the electromagnet device 6 is turned off, the pair of levers 4a and 4b are rotated in the closing direction by the spring force of the spring 8, and the pair of shoes 3a and 3b are in sliding contact with the brake drum 2. . Thus, the rotation of the hoisting machine connected to the brake drum 2 is decelerated or stopped.

  The hoisting machine brake device 1 needs to be inspected and cleaned regularly, and the hoisting machine brake device 1 is usually disassembled and lowered to the machine room floor, which is a stable work place, for inspection and cleaning. Do work. As a disassembling method used for the disassembling work of the brake device 1 of this hoisting machine, for example, after removing the rod from the through hole in a state where both of the pair of levers are closed via the binding body, Insert the rods and hold the levers in the closed state via the nuts screwed into the screw parts at both ends, then remove the bundle from these levers and loosen the nuts at one end of the disassembly rod A brake disassembling method for a hoisting machine is known in which, after removing one of the levers, the nut on the other end of the disassembling rod is loosened to remove the other lever (see, for example, Patent Document 1).

  Here, fulcrum pins 5a and 5b that respectively support the levers 4a and 4b so as to be rotatable, and sliding members (not shown) provided on the surfaces of the holes of the levers 4a and 4b through which the fulcrum pins 5a and 5b are inserted. Since the levers 4a and 4b slide relative to each other, they are easily worn. Therefore, it is necessary to periodically check the sliding members in the holes of the fulcrum pins 5a and 5b and the levers 4a and 4b by removing the levers 4a and 4b from the fulcrum pins 5a and 5b, respectively. Therefore, for example, one lever 4a of the levers 4a and 4b is removed by applying the conventional brake disassembly method of the hoisting machine disclosed in Patent Document 1 to the brake device 1 of the hoisting machine. In addition, since it is not necessary to manually hold the other lever 4b, it is considered that an operator can easily disassemble the brake device 1 alone.

Japanese Patent Laid-Open No. 5-213566

  However, some large brake devices 1 have a weight of 40 kg or more for each lever 4a, 4b, and the above-described conventional brake disassembling method for a hoisting machine is applied to such a large brake device 1. In this case, as described above, of the levers 4a and 4b, for example, even if the other lever 4b does not need to be manually held, the operator cannot remove the lever 4a itself, and the brake device 1 is disassembled. In addition, at least two workers are required for the assembly work. For this reason, it takes a lot of time and labor to disassemble and assemble the brake device 1. Further, in the above-described conventional brake disassembling method of the hoisting machine, the sliding members of the fulcrum pins 5a and 5b and the holes of the levers 4a and 4b, that is, the fulcrum pins 5a and 5b and the levers 4a and 4b slide relative to each other. Since it is necessary to remove members such as the spring 8 and the rod 7 in order to check the portion to be performed, the number of work steps is increased, and the work of disassembling the brake device 1 is complicated.

  In particular, when the fulcrum pins 5a and 5b are inserted into the holes at the lower ends of the levers 4a and 4b in the assembly operation of the brake device 1, the lever 4a is held with two or more workers holding the levers 4a and 4b. , 4b and the through holes of the machine base 16 are aligned with each other, and another operator must insert the fulcrum pins 5a, 5b into these holes and the through holes, so that the levers 4a, 4b Positioning of the hole is difficult, and there is a concern that assembly work of the brake device 1 takes a long time.

  The present invention has been made from such a state of the art, and its purpose is to inspect the sliding portions of the fulcrum pin and the lever without removing the members such as the spring and the rod, It is an object of the present invention to provide an elevator brake disassembly and assembly apparatus and a brake disassembly and assembly method capable of easily assembling a brake device.

  In order to achieve the above object, an elevator brake disassembling / assembling apparatus according to the present invention includes a brake drum coupled to an elevator hoist, a pair of shoes slidably contacting the brake drum, and the brake drum. A pair of levers that are respectively arranged on both sides and support the pair of shoes, a pair of fulcrum pins that rotatably support one end of each of the levers, and a pair of levers provided between the levers. Electromagnet device that pushes each in a direction away from the brake drum, a rod that is inserted into a through hole provided in the electromagnet device and the lever, and one end of the rod that is closed with respect to the pair of levers And an elevator brake device having a spring for urging a spring force in the direction. The elevator brake disassembling / assembling apparatus includes a lever opening preventing tool for preventing the pair of levers from opening when disassembling or assembling the brake apparatus, and each lever is formed in a divided manner and is located on the upper side. And an upper lever through which the rod is inserted and a lower lever that is positioned below the upper lever and is rotatably supported by the fulcrum pin. The side lever is formed in a notch shape at the lower end and includes a recess that engages with the fulcrum pin.

  In the present invention configured as described above, the rod is inserted into the upper levers of the pair of levers, and a spring is provided at one end of the rod, so that the spring force is biased in the closing direction with respect to the pair of levers. ing. Each lever is divided into an upper lever and a lower lever, and a recess formed in a notch shape at the lower end of the lower lever of each lever engages with a fulcrum pin to rotate each lever. When disassembling the brake device, the upper lever of each lever is fixed to the spring, rod, and electromagnetic device by preventing the pair of levers from being opened by the lever opening prevention tool. Is done. Therefore, since it is not necessary to remove the upper lever, the lower lever can be detached from the upper lever and the fulcrum pin in a state where a rod is attached to the upper lever and a spring is provided at one end of the rod. Thereby, the part which mutually slides among a fulcrum pin and a lever can be inspected, and when a wear state is confirmed in these sliding parts, it can respond quickly, such as replacement | exchange.

  In addition, when the brake device is assembled by attaching the lower lever of the lever to the fulcrum pin, the lever opening prevention tool prevents the pair of levers from being opened, as in the case of disassembling the brake device described above. The upper lever of each lever is fixed with respect to the spring, the rod and the electromagnet device. Therefore, it is possible to easily attach the lower lever of the lever to the fulcrum pin by engaging the notch formed in the lower end of the lower lever of the lever with the fulcrum pin and connecting it to the upper lever of the lever. it can. In this way, it is possible to inspect the sliding portions of the fulcrum pin and lever without removing members such as springs and rods, and it is possible to easily assemble the brake device.

  In the elevator brake disassembling and assembling apparatus according to the present invention, in the above invention, the lever opening prevention tool is set to a width having a length equivalent to a distance between the pair of levers, and the gap between the pair of levers is set. It is characterized by comprising a rigid body that is interposed and holds the pair of levers. When configured in this way, when disassembling or assembling the brake device, even if the rigid body interposed between the pair of levers receives a force from each lever, by holding each lever by the rigidity of the rigid body, It is possible to reliably prevent the pair of levers from being opened by the spring force of the spring provided at one end of the rod. Thereby, high safety in disassembling and assembling work of the brake device can be ensured.

  In the elevator brake disassembling and assembling apparatus according to the present invention, the lever opening prevention tool is set to have a length equivalent to a distance between the electromagnet device and each lever, and the electromagnet device. And a pair of rigid bodies that are respectively interposed between the levers and hold the pair of levers. If comprised in this way, since a pair of said rigid body is interposed and fixed between an electromagnet apparatus and each lever, respectively, even if each said rigid body receives force from a lever and an electromagnet apparatus, the rigidity of each said rigid body Thus, the pair of levers can be held and the electromagnet device can be supported from both sides. Thereby, the upper lever of each lever can maintain the stable fixed state with respect to the spring, the rod, and the electromagnet device in the disassembly and assembly work of the brake device.

  The elevator brake disassembling method according to the present invention includes a brake drum connected to an elevator hoisting machine, a pair of shoes slidably contacting the brake drum, and both sides of the brake drum. A pair of levers that respectively support the pair of shoes, a pair of fulcrum pins that rotatably support one end of each of the levers, and a pair of levers that are provided between the pair of levers. An electromagnet device that pushes away in a separating direction, a rod that is inserted into a through hole provided in the electromagnet device and the lever, and a spring force that is provided at one end of the rod in a closing direction with respect to the pair of levers. An elevator brake device having a biasing spring, and the pair of brake devices when the brake device is disassembled or assembled. And a lever opening prevention tool for preventing the lever from opening, wherein each lever is divided and formed on the upper side, the upper lever having the through hole and the rod inserted therethrough, and the upper lever. And a lower lever rotatably supported by the fulcrum pin. Each of the lower levers is formed in a notch shape at the lower end and engages with the fulcrum pin. An elevator brake disassembling / assembling method for an elevator brake disassembling / assembling apparatus for disassembling and assembling a brake device, a first step of attaching the lever opening preventing tool to the pair of levers, and the lower side of each lever A second step of removing the lever from the upper lever and the fulcrum pin; and attaching the lower lever of each lever to the upper lever and the fulcrum pin A third step, is characterized in that it comprises a fourth step of removing the lever opening prevention tool from said pair of levers.

  The present invention configured as above prevents the lever from being opened when the lower lever of each lever is removed from the upper lever and the fulcrum pin in the second step by attaching the lever opening preventing tool to the pair of levers in the first step. Since the pair of levers is prevented from being opened by the tool, the upper lever of each lever is fixed to the spring, the rod, and the electromagnet device. Therefore, the lower lever can be detached from the upper lever and the fulcrum pin in a state where the rod is attached to the upper lever and the spring is provided at one end of the rod in the second step. Thereby, the part which mutually slides among a fulcrum pin and a lever can be inspected, and when a wear state is confirmed in these sliding parts, it can respond quickly, such as replacement | exchange.

  After checking the sliding portions of the fulcrum pin and the lever, the lower lever of each lever is attached to the upper lever and the fulcrum pin in the third step, and the lever opening prevention tool is attached to the pair of the levers in the fourth step. The brake device disassembled in the second step can be easily assembled simply by removing it from the lever. In this way, it is possible to inspect the sliding portions of the fulcrum pin and lever without removing members such as springs and rods, and it is possible to easily assemble the brake device.

  In the elevator brake disassembling / assembling method according to the present invention, in the above invention, the lever opening preventing tool is set to a width having a length equivalent to the distance between the pair of levers, and the gap between the pair of levers is set. It is composed of a rigid body that is interposed to hold the pair of levers, and the first step includes a step of interposing the rigid body between the pair of levers. If comprised in this way, since the said rigid body is preset to the width | variety of the length equivalent to the space | interval between a pair of levers, it will be easy only by interposing the said rigid body between a pair of levers in a 1st process. It can be attached and the rigid body can be firmly fixed between these levers.

  In the elevator brake disassembling / assembling method according to the present invention, in the above invention, the lever opening prevention tool is set to a length equivalent to the distance between the electromagnet device and each lever, and the electromagnet device And a pair of rigid bodies that are respectively interposed between the levers and hold the pair of levers. In the first step, the pair of rigid bodies are interposed between the electromagnet device and the levers. It has the process of carrying out. If comprised in this way, since a pair of said rigid body is preset by the length respectively equivalent to the space | interval between an electromagnet apparatus and each lever, each rigid body is made into an electromagnet apparatus and each lever in a 1st process. Since it can be attached simply by being sandwiched between them, the brake device can be disassembled and assembled efficiently.

  According to the elevator brake disassembling / assembling apparatus and the brake disassembling / assembling method of the present invention, when disassembling the brake apparatus, the pair of levers rotatably supported by the fulcrum pins are separated into the upper lever and the lower lever. Each lever is pivoted by a notch-shaped recess formed at the lower end of the lower lever of each lever that engages with the fulcrum pin. Can be easily detached from the upper lever and the fulcrum pin without removing members such as the spring and the rod from the brake device. The burden on the worker in the disassembling work can be reduced. Thereby, the part which mutually slides among a fulcrum pin and a lever can be inspected, and when a wear state is confirmed in these sliding parts, it can respond quickly, such as replacement | exchange.

  Also, when assembling the brake device, the upper lever of each lever is fixed to the spring, rod, and electromagnet device by the lever opening prevention tool, so the concave portion of the lower lever of the lever is engaged with the fulcrum pin. By connecting the upper lever to the upper lever, the lower lever of the lever can be easily attached to the fulcrum pin. In this way, it is possible to inspect the sliding portions of the fulcrum pin and lever without removing members such as springs and rods, and it is possible to easily assemble the brake device. Therefore, it is possible to improve the efficiency of disassembling and assembling work of the brake device as compared with the conventional case, and to reduce the burden on the disassembling and assembling work of the brake device.

1 is a front view showing a configuration of a first embodiment of an elevator brake disassembly and assembly apparatus according to the present invention. It is a figure which shows the structure of the lever opening prevention tool with which 1st Embodiment of this invention shown in FIG. 1 is equipped. It is a perspective view explaining the 1st process included in 1st Embodiment of the brake disassembly / assembly method of the elevator concerning the present invention. It is a back perspective view explaining the 2nd process contained in 1st Embodiment of the brake disassembly assembly method of the elevator concerning the present invention, and is a figure showing the process of removing a bolt and a nut from a lever. It is a perspective view explaining the 2nd process contained in 1st Embodiment of the brake disassembly assembly method of the elevator which concerns on this invention, and is a figure which shows the process of removing a lower lever from an upper lever and a fulcrum pin. It is a figure which shows the structure of the lever opening prevention tool with which 2nd Embodiment of the brake disassembly assembly apparatus of the elevator which concerns on this invention is equipped. It is a figure explaining the 1st process included in 2nd Embodiment of the brake disassembly assembly method of the elevator which concerns on this invention. It is a front view which shows the structure of the brake device with which the brake assembly | disassembly apparatus of the conventional elevator is equipped.

  EMBODIMENT OF THE INVENTION Hereinafter, the form for implementing the brake disassembly / assembly apparatus and brake disassembly / assembly method of an elevator concerning this invention is demonstrated based on figures.

[First Embodiment of Brake Disassembly / Assembly Device]
The elevator brake disassembling / assembling apparatus according to the first embodiment of the present invention is provided, for example, in the brake apparatus 1 shown in FIG. 8 described above, and the basic configuration of the brake apparatus provided with the first embodiment of the present invention is as follows. As shown in FIG. 1, the configuration is the same as that of the brake device 1 shown in FIG. Therefore, the same code | symbol is attached | subjected to the part which overlaps with the brake device 1 shown in FIG.

  As shown in FIGS. 1 and 2, the first embodiment of the present invention is provided with a lever opening prevention tool described later for preventing the pair of levers 4 a and 4 b from opening when the brake device 1 is disassembled or assembled. . The levers 4a and 4b are divided and formed on the upper side and have upper through holes 10a and 10b through which the rod 7 is inserted with a through hole (not shown), and below the upper levers 10a and 10b. The lower levers 11a and 11b are positioned and pivotally supported by the fulcrum pins 5a and 5b. The lower levers 11a and 11b are cut out at the lower ends as shown in FIG. It includes recesses 111a and 111b that are formed and engage fulcrum pins 5a and 5b.

  As shown in FIG. 4, connection holes 17a and 17b are formed at the lower ends of the upper levers 10a and 10b to connect the lower levers 11a and 11b. Similarly, the upper ends of the lower levers 11a and 11b are formed. As shown in FIG. 5, connection holes 18a and 18b are formed for connection to the upper levers 10a and 10b. The bolts 12a and 12b are inserted into the connecting holes 17a, 17b, 18a and 18b, respectively, and the nuts 13a and 13b are fastened to the bolts 12a and 12b, so that the upper levers 10a and 10b and the lower lever are connected. 11a and 11b are connected to each other. In addition, each junction part of upper lever 10a, 10b and lower lever 11a, 11b is formed so that it may become a step shape, and it may mutually engage, and each junction surface of these junction parts is a lower side. When the levers 11a and 11b are rotated outward with the fulcrum pins 5a and 5b as the central axes, the joint surfaces are inclined in a direction to rotate so as not to interfere with the upper levers 10a and 10b.

  In the first embodiment of the present invention, the above-described lever opening preventing tool is set to a width having a length equivalent to the distance between the pair of levers 4a and 4b as shown in FIG. 3, for example, and the pair of levers 4a and 4b. It consists of a rigid body 14 that is interposed between and holds a pair of levers 4a and 4b. Specifically, the rigid body 14 is formed in a plate shape as shown in FIG. 2, and has an upper frame portion 14a set to a width equivalent to the distance between the pair of levers 4a and 4b, and the upper frame. It is fixed to a pair of horizontal frame portions 14b and 14c erected downward at both ends of the portion 14a and a concave portion 14e provided on the central rear surface of the upper frame portion 14a so as to follow the circumference of the electromagnet device 6. And an arc-shaped drop prevention portion 14d formed in the shape.

  The fall prevention part 14d is arranged so as to intersect perpendicularly with respect to the upper frame part 14a, and the center point of the arc is positioned below the upper frame part 14a. In addition, recesses 14f and 14g that are formed in a notch shape and engage with the push bolts 9a and 9b of the brake device 1 are formed at the tips of the horizontal frame portions 14b and 14c, that is, the lower ends of the horizontal frame portions 14b and 14c. Is provided. As shown in FIG. 3, the length of the horizontal frame portions 14b and 14c is such that when the concave portions 14f and 14g of the rigid body 14 are engaged with the push bolts 9a and 9b from above, respectively, the fall prevention portion 14d It is set so that it may be mounted on the upper part of the outer periphery.

  In the elevator brake disassembling / assembling apparatus according to the first embodiment configured as described above, for example, the disassembling and assembling work of the brake apparatus is performed in the following procedure.

  FIG. 3 is a perspective view for explaining a first step included in the first embodiment of the elevator brake disassembling and assembling method according to the present invention, and FIG. 4 is included in the first embodiment of the elevator brake disassembling and assembling method according to the present invention. FIG. 5 is a rear perspective view for explaining a second step, and shows a step of removing a bolt and a nut from a lever, and FIG. 5 shows a second step included in the first embodiment of the elevator brake disassembling and assembling method according to the present invention. It is a perspective view explaining, and is a figure which shows the process of removing a lower lever from an upper lever and a fulcrum pin.

  The first embodiment of the elevator brake disassembling / assembling method according to the present invention includes a first step of attaching a lever opening preventing tool, that is, a rigid body 14 to a pair of levers 4a and 4b, as shown in FIG. 3, and FIGS. As shown in FIG. 2, the second step of removing the lower levers 11a, 11b of the levers 4a, 4b from the upper levers 10a, 10b and the fulcrum pins 5a, 5b, and the lower levers 11a, 11b of the levers 4a, 4b 10a, 10b and the third step of attaching to the fulcrum pins 5a, 5b, and the fourth step of removing the rigid body 14 from the pair of levers 4a, 4b.

  Specifically, the first step includes a step of interposing the rigid body 14 between the upper levers 10a and 10b of the pair of levers 4a and 4b as shown in FIG. 3, for example. That is, the fall prevention part 14d of the rigid body 14 is placed on the upper part of the outer periphery of the electromagnet device 6 from above, and the recesses 14f and 14g of the rigid body 14 are engaged with the push bolts 9a and 9b, respectively. Here, when it is difficult to insert the rigid body 14 between the upper levers 10a and 10b, the levers 4a and 4b are opened once by using a brake release tool (not shown) or exciting the electromagnet device 6, for example. The rigid body 14 may be inserted.

  In the second step, as shown in FIG. 4, the nuts 13a and 13b are removed from the bolts 12a and 12b, and the bolts 12a and 12b are connected to the connecting holes 17a and 17b of the upper levers 10a and 10b and the connecting holes of the lower levers 11a and 11b. 18a and 18b are respectively extracted. Further, in the second step, after the bolts 12a and 12b are removed, the lower levers 11a and 11b are detached from the upper levers 10a and 10b and the fulcrum pins 5a and 5b, respectively. Thus, even if the lower levers 11a and 11b are detached from the brake device 1, the spring 8 and the rigid body 14 support the upper levers 10a and 10b, and the shoes 3a and 3b are engaged with the brake drum 2. This prevents the upper levers 10a and 10b from being displaced relative to the brake drum 2. The portions of the lower levers 11a and 11b of the fulcrum pins 5a and 5b and the levers 4a and 4b that slide with the fulcrum pins 5a and 5b, that is, the recesses 111a and 111b of the lower levers 11a and 11b are inspected.

  Further, in the third step and the fourth step, the assembly work of the brake device 1 is performed by performing the reverse procedure of the first step and the second step described above. Specifically, in the third step, the recesses 111a and 111b of the lower levers 11a and 11b are engaged with the shafts of the fulcrum pins 5a and 5b, respectively, and the upper ends of the lower levers 11a and 11b are moved to the upper lever. The lower ends of 10a and 10b are engaged with each other. Then, the bolts 12a and 12b are inserted into the connecting holes 17a and 17b of the upper levers 10a and 10b and the connecting holes 18a and 18b of the lower levers 11a and 11b, and the nuts 13a and 13b are fastened to the bolts 12a and 12b, respectively. Yes.

  In the fourth step, the rigid body 14 is lifted upward and removed from the upper levers 10a and 10b. Here, when it is difficult to remove the rigid body 14 from the upper levers 10a and 10b, for example, by using a brake release tool (not shown) or exciting the electromagnet device 6, the levers 4a and 4b are opened once and then the rigid body 14 is removed. You may make it remove.

  According to the first embodiment of the brake disassembling / assembling apparatus and the brake disassembling / assembling method configured as described above, the rod 7 is inserted into the upper levers 10a, 10b of the pair of levers 4a, 4b, respectively. By providing a spring 8 at one end of the lever, a spring force is biased in a closing direction with respect to the pair of levers 4a and 4b. The levers 4a and 4b are divided into upper levers 10a and 10b and lower levers 11a and 11b. The levers 4a and 4b are notched at the lower ends of the lower levers 11a and 11b. Since the recesses 111a and 111b are engaged with the fulcrum pins 5a and 5b and the levers 4a and 4b are rotated, when the brake device 1 is disassembled, as shown in FIG. In the process, the rigid body 14 is interposed between the pair of levers 4a and 4b, and the upper levers 10a and 10b of the levers 4a and 4b are fixed with respect to the spring 8, the rod 7 and the electromagnet device 6 so that the position shifts. Is prevented.

  Therefore, as shown in FIG. 4, the nuts 13a and 13b screwed to the bolts 12a and 12b in the second step are removed, and the bolts 12a and 12b are connected to the connecting holes 17a and 17b of the upper levers 10a and 10b and the lower lever 11a. 11b, the rod 7 is attached to the upper levers 10a and 10b, and the rod 7 is attached to one end of the rod 7, because the upper levers 10a and 10b do not have to be removed as shown in FIG. With the spring 8 provided, the lower levers 11a and 11b can be detached from the upper levers 10a and 10b and the fulcrum pins 5a and 5b. As a result, it is possible to inspect the sliding portions of the fulcrum pins 5a and 5b and the levers 4a and 4b, and when the wear state is confirmed in these sliding portions, the replacement is quickly performed. be able to.

  Further, when the brake device 1 is assembled by attaching the lower levers 11a, 11b of the levers 4a, 4b to the fulcrum pins 5a, 5b, the lower levers 11a, 11b of the levers 4a, 4b are connected to the upper levers in the third step. 10a, 10b and fulcrum pins 5a, 5b are attached to prevent the pair of levers 4a, 4b from being opened by the rigid body 14, so that the upper levers 10a, 10b of the levers 4a, 4b are springs 8, rods 7, and electromagnets. It is fixed with respect to the device 6 to prevent displacement. Therefore, the recesses 111a and 111b formed in a notch shape at the lower ends of the lower levers 11a and 11b of the levers 4a and 4b are engaged with the fulcrum pins 5a and 5b to be connected to the upper levers 10a and 10b of the levers 4a and 4b. Thus, the lower levers 11a and 11b of the levers 4a and 4b can be easily attached to the fulcrum pins 5a and 5b. And the brake device 1 disassembled in the 2nd process can be easily assembled only by removing the rigid body 14 from a pair of lever 4a, 4b in a 4th process.

  As described above, the sliding portions of the fulcrum pins 5a and 5b and the levers 4a and 4b can be inspected without removing the members such as the spring 8 and the rod 7, and the brake device 1 can be easily assembled. it can. Furthermore, the first embodiment of the brake disassembling and assembling apparatus and the first embodiment of the brake disassembling and assembling method of the present invention are not limited to the fulcrum pins 5a and 5b and the levers 4a and 4b. Since it is possible to inspect the parts that slide on each other, the working time for disassembling and assembling the brake device 1 can be shortened. Therefore, the efficiency of the disassembling and assembling work of the brake device 1 can be improved, and the burden on the disassembling and assembling work of the brake device 1 can be reduced.

  Further, in the first embodiment of the brake disassembling and assembling apparatus of the present invention, the rigid body 14 is set to a width equal to the distance between the pair of levers 4a and 4b as shown in FIG. , 4b is held between the levers 4a and 4b to reliably prevent the pair of levers 4a and 4b from being opened by the spring force of the spring 8 provided at one end of the rod 7. be able to. Furthermore, the fall prevention part 14d of the rigid body 14 is placed on the upper part of the outer periphery of the electromagnet device 6, and the recesses 14f and 14g of the rigid body 14 are engaged with the push bolts 9a and 9b, respectively. Can be prevented from falling. Thereby, the high safety | security in the decomposition | disassembly and assembly operation of the brake device 1 is securable.

  Further, in the first embodiment of the brake disassembling and assembling method of the present invention, as described above, the rigid body 14 is preset to a width equivalent to the distance between the pair of levers 4a and 4b. As shown in the figure, in the first step, the fall prevention part 14d of the rigid body 14 is placed on the upper part of the outer periphery of the electromagnet device 6 from above, and the recesses 14f and 14g of the rigid body 14 are engaged with the push bolts 9a and 9b, respectively. Thus, the rigid body 14 can be easily attached only by being interposed between the pair of levers 4a and 4b, and the rigid body 14 can be firmly fixed between the levers 4a and 4b. 14 high reliability can be ensured.

[Second Embodiment of Brake Disassembly / Assembly Device]
FIG. 6 is a view showing the structure of a lever opening preventing tool provided in the second embodiment of the elevator brake disassembling / assembling apparatus according to the present invention, and FIG. 7 is the second embodiment of the elevator brake disassembling / assembling method according to the present invention. It is a figure explaining the 1st process included.

  The second embodiment of the brake disassembling and assembling apparatus according to the present invention differs from the first embodiment in that in the first embodiment, the lever opening prevention tool is a distance between a pair of levers 4a and 4b as shown in FIG. In the second embodiment, the lever has a rigid body 14 that is set to a width equal to the length of the lever and is interposed between the pair of levers 4a and 4b to hold the pair of levers 4a and 4b. For example, as shown in FIGS. 6 and 7, the opening prevention tool is set to a length equivalent to the distance between the electromagnet device 6 and each of the levers 4a and 4b, and between the electromagnet device 6 and each of the levers 4a and 4b. It consists of a pair of rigid bodies 15a, 15b that are respectively interposed between and hold a pair of levers 4a, 4b. Each of these rigid bodies 15 a and 15 b has an inverted U-shaped longitudinal section so as to engage with the rod 7. Other configurations are the same as those of the first embodiment of the brake disassembly and assembly apparatus described above.

  In the brake disassembling and assembling apparatus according to the second embodiment configured as described above, the disassembling and assembling work of the brake apparatus is performed, for example, in the following procedure.

  In the second embodiment of the elevator brake disassembling / assembling method according to the present invention, for example, as shown in FIG. 7, the first step is to place a pair of rigid bodies 15a, 15b between the electromagnet device 6 and the levers 4a, 4b. A step of interposing. Specifically, of the pair of rigid bodies 15a and 15b shown in FIG. 6, the electromagnet device 6 and the lever 4a are arranged from above so that one rigid body 15a does not come into contact with the push bolt 9a provided at the upper end of the upper lever 10a. It arrange | positions in between and the inside of the rigid body 15a is engaged with the rod 7. FIG.

  Then, the other rigid body 15b is disposed between the electromagnet device 6 and the lever 4b from above so as not to contact the push bolt 9b provided at the upper end of the upper lever 10b, and the inside of the rigid body 15b is engaged with the rod 7. I am letting. Here, when it is difficult to insert the rigid bodies 15a and 15b between the electromagnet device 6 and the levers 4a and 4b, for example, by using a brake release tool (not shown) or exciting the electromagnet device 6, the lever The rigid bodies 15a and 15b may be inserted after the 4a and 4b are opened once.

  In the fourth step, the rigid bodies 15a and 15b are lifted upward and removed from the upper levers 10a and 10b, respectively. Here, when it is difficult to remove the rigid bodies 15a and 15b from the upper levers 10a and 10b, the levers 4a and 4b are opened once by using a brake release tool (not shown) or by exciting the electromagnet device 6, for example. You may make it remove 15a, 15b, respectively. Other configurations are the same as those of the first embodiment of the brake disassembly and assembly method described above.

  According to the second embodiment of the brake disassembling and assembling apparatus configured as described above and the second embodiment of the brake disassembling and assembling method, the same effects as those of the first embodiment described above can be obtained. Further, in the second embodiment of the brake disassembling and assembling apparatus of the present invention, the pair of rigid bodies 15a and 15b is set to have a length equivalent to the distance between the electromagnet device 6 and each lever 4a and 4b, respectively. Since the rigid bodies 15a and 15b are interposed and fixed between the electromagnet device 6 and the levers 4a and 4b, respectively, even if the rigid bodies 15a and 15b receive force from the levers 4a and 4b and the electromagnet device 6, The pair of levers 4a and 4b can be held by the rigidity of the rigid bodies 15a and 15b, and the electromagnet device 6 can be supported from both sides. Accordingly, the upper levers 10a and 10b of the levers 4a and 4b can be kept in a stable fixed state with respect to the spring 8, the rod 7, and the electromagnet device 6 in the disassembly and assembly work of the brake device 1.

  Further, in the second embodiment of the brake disassembling and assembling method of the present invention, the pair of rigid bodies 15a and 15b are set to the same length as the distance between the electromagnet device 6 and the levers 4a and 4b, respectively. The rigid bodies 15a and 15b have a reverse U-shaped shape so that the rigid bodies 15a and 15b are engaged with the rod 7, so that the rigid bodies 15a and 15b are connected to the electromagnet device 6 and the lever 4a in the first step. Since it can be attached by simply disposing them in between and simply engaging the insides of the rigid bodies 15a, 15b with the rods 7, the disassembly and assembly work of the brake device 1 can be carried out well.

DESCRIPTION OF SYMBOLS 1 Brake device 2 Brake drum 3a, 3b Shoe 4a, 4b Lever 5a, 5b Support pin 6 Electromagnet device 7 Rod 8 Spring 9a, 9b Push bolt 10a, 10b Upper lever 11a, 11b Lower lever 12a, 12b Bolt 13a, 13b Nut 14, 15a, 15b Rigid body (lever opening prevention tool)
14a Upper frame part 14b, 14c Horizontal frame part 14d Fall prevention part 14e, 14f, 14g Recess 16 Machine base 17a, 17b, 18a, 18b Connection hole 111a, 111b Recess

Claims (6)

A brake drum connected to an elevator hoist, a pair of shoes slidably contacted with the brake drum, a pair of levers arranged on both sides of the brake drum and respectively supporting the pair of shoes; A pair of fulcrum pins for rotatably supporting one end of each of these levers, an electromagnet device provided between the pair of levers, each for pushing the levers away from the brake drum, and the electromagnet device, Provided in a brake device for an elevator having a rod inserted into a through hole provided in the lever, and a spring provided at one end of the rod and biasing a spring force in a closing direction with respect to the pair of levers, In an elevator brake disassembly and assembly device for disassembling and assembling this brake device,
A lever opening prevention tool for preventing the pair of levers from opening when disassembling or assembling the brake device;
Each of the levers is formed in a divided manner, and is located on the upper side, has an upper lever through which the rod is inserted, and is located below the upper lever and is rotatable about the fulcrum pin. A lower lever supported,
Each of these lower levers is formed in a notch shape at the lower end and includes a recess that engages with the fulcrum pin. The elevator brake disassembly and assembly apparatus according to claim 1,
The lever opening prevention tool is set to a width having a length equivalent to the interval between the pair of levers, and is composed of a rigid body that is interposed between the pair of levers and holds the pair of levers. Elevator brake disassembly and assembly equipment. The elevator brake disassembly and assembly apparatus according to claim 1,
The lever opening prevention tool is set to have a length equivalent to the distance between the electromagnet device and each lever, and is interposed between the electromagnet device and each lever, respectively. An elevator brake disassembling / assembling device comprising a pair of rigid bodies to be held. A brake drum connected to an elevator hoist, a pair of shoes slidably contacted with the brake drum, a pair of levers arranged on both sides of the brake drum and respectively supporting the pair of shoes; A pair of fulcrum pins for rotatably supporting one end of each of these levers, an electromagnet device provided between the pair of levers, each for pushing the levers away from the brake drum, and the electromagnet device, Provided in a brake device for an elevator having a rod inserted into a through hole provided in the lever, and a spring provided at one end of the rod and biasing a spring force in a closing direction with respect to the pair of levers, A lever opening prevention tool for preventing the pair of levers from opening when disassembling or assembling the brake device; Each lever is formed in a divided manner, is located on the upper side, has an upper lever through which the rod is inserted, and is located below the upper lever and is rotatable about the fulcrum pin A lower lever to be supported, each lower lever being formed in a notch shape at the lower end, including a recess engaging the fulcrum pin, and disassembling and assembling the brake device for brake disassembly of the elevator In an elevator brake disassembly and assembly method used in an assembly apparatus,
A first step of attaching the lever opening prevention tool to the pair of levers;
A second step of removing the lower lever of each lever from the upper lever and the fulcrum pin;
A third step of attaching the lower lever of each lever to the upper lever and the fulcrum pin;
And a fourth step of removing the lever opening preventing tool from the pair of levers. The elevator brake disassembly and assembly method according to claim 4,
The lever opening prevention tool is set to a width having a length equivalent to the interval between the pair of levers, and is composed of a rigid body that is interposed between the pair of levers and holds the pair of levers,
The elevator brake disassembling and assembling method, wherein the first step includes a step of interposing the rigid body between the pair of levers. The elevator brake disassembly and assembly method according to claim 4,
The lever opening prevention tool is set to have a length equivalent to the distance between the electromagnet device and each lever, and is interposed between the electromagnet device and each lever, respectively. Consists of a pair of rigid bodies to hold,
The elevator brake disassembling / assembling method according to claim 1, wherein the first step includes a step of interposing these pair of rigid bodies between the electromagnet device and the levers.

Images