JP6022007B1 - Brake attachment / detachment jig - Google Patents

Abstract

To provide a brake attaching / detaching jig capable of safely and easily attaching / detaching a brake unit to / from a hoisting machine body arranged at an upper part of a hoistway. A brake attaching / detaching jig 20 according to an embodiment is for attaching / detaching a brake unit 12 to / from a hoisting machine main body 10 arranged at an upper part of an elevator hoistway. A base plate 21 fixed to the upper surface portion 10 </ b> A of the hoisting machine body 10, a support shaft 22 standing on the base plate 21, a base end portion 23 </ b> A is supported by the support shaft 22, and a distal end portion 23 </ b> B is a brake unit 12. A suspension beam member 23 extending upward, a guide rail 26 provided at the tip 23B of the suspension beam member 23, the guide rail 26 and the guide rail 26 along the longitudinal direction of the suspension beam member 23. A slide member 27 that slides on the rail 26 and a bracket 28 that connects the slide member 27 and the brake unit 12 are provided. [Selection] Figure 4

Description

  Embodiments described herein relate generally to a brake attaching / detaching jig for attaching / detaching a brake unit to / from a hoisting machine main body.

  In general, a so-called machine room-less type elevator apparatus in which a machine room is not provided in order to minimize the area occupied by the elevator in a building is widely used (see, for example, Patent Document 1). In a machine room-less type elevator apparatus, a hoisting machine for raising and lowering a car is installed at the upper part of a hoistway. The hoisting machine includes a hoisting machine main body including an electric motor for hoisting a hoisting rope, and the hoisting machine. And a brake unit connected to the machine body.

JP 2009-215051

  By the way, when performing maintenance and inspection of the hoisting machine, an operation of attaching and detaching the brake unit to the hoisting machine main body may occur. In the machine room-less type elevator apparatus, the worker ascends to the upper surface of the car that has been raised to the vicinity of the hoisting machine, and the brake unit is attached and detached using the upper surface of the car as a scaffold. In this case, since the brake unit is heavy, it is desired to attach and detach the brake unit safely and easily.

  This invention is made in view of the above, Comprising: It aims at providing the brake attachment / detachment jig | tool which can attach | detach and attach a brake unit safely and easily to the winding machine main body arrange | positioned at the upper part of a hoistway.

  The brake attaching / detaching jig according to the embodiment is a brake attaching / detaching jig for attaching / detaching a brake unit to / from a hoisting machine main body arranged at an upper part of an elevator hoistway, and is fixed to an upper surface portion of the hoisting machine main body. A base plate, a support shaft erected on the base plate, a base end portion supported by the support shaft, a tip end portion extending above the brake unit, and a tip end portion of the suspension beam member A guide rail, a slide member that is held by the guide rail and that slides along the longitudinal direction of the suspension beam member, and a connecting member that connects the slide member and the brake unit are provided.

FIG. 1 is a diagram illustrating a schematic configuration of an elevator apparatus in which the brake attaching / detaching jig according to the present embodiment is used. FIG. 2 is an external perspective view of the hoisting machine. FIG. 3 is an external perspective view of a hoisting machine to which a brake attaching / detaching jig is attached. FIG. 4 is a schematic side view of a hoisting machine to which a brake attaching / detaching jig is attached. FIG. 5 is an exploded perspective view of the brake attaching / detaching jig. FIG. 6 is a diagram illustrating an operation when the brake unit is attached / detached. FIG. 7 is a diagram illustrating an operation when the brake unit is attached / detached.

  Hereinafter, a brake attaching / detaching jig according to an embodiment will be described with reference to the drawings. In addition, this invention is not limited by the following embodiment.

  FIG. 1 is a diagram illustrating a schematic configuration of an elevator apparatus in which the brake attaching / detaching jig according to the present embodiment is used. As shown in FIG. 1, the elevator apparatus 1 includes a car 3 that can move up and down the hoistway 2, a counterweight 4 as a counterweight, a main rope 5 that connects the car 3 and the counterweight 4, The main rope 5 is wound around and a hoisting machine 6 that raises and lowers the car 3 is provided. In the present embodiment, a stage 7 is provided on the hoistway 2 and the hoisting machine 6 is disposed on the stage 7. As described above, the elevator apparatus 1 according to this embodiment is a so-called machine room-less type in which the hoisting machine 6 is disposed on the upper part of the hoistway 2.

  The hoistway 2 is provided along the vertical direction of the building and communicates with a plurality of floors 8 in the building. The car 3 is a structure that is arranged in the hoistway 2 and is used for a user to ride or load a luggage. In the present embodiment, the car 3 includes a safety fence 9 that surrounds the periphery of the upper surface 3 </ b> A of the car 3, so that an operator can work safely while standing on the upper surface 3 </ b> A of the car 3. The counterweight 4 is a counterweight that is connected to the car 3 via the main rope 5 and disposed in the hoistway 2, and can move up and down the hoistway 2 in conjunction with the car 3. The main rope 5 is wound around a sheave 11 (see FIG. 2) of the hoisting machine 6, and the car 3 is connected to one end and the counterweight 4 is connected to the other end. The hoisting machine 6 includes an electric motor (not shown) that generates power to move the car 3, a sheave 11 connected to the electric motor, and the like. In the hoisting machine 6, the sheave 11 is rotated by the drive of the electric motor, and the main rope 5 is wound around the sheave 11 to raise and lower the car 3.

  FIG. 2 is an external perspective view of the hoisting machine. As shown in FIG. 2, the hoisting machine 6 includes a hoisting machine main body 10 formed long along an axis S extending in the horizontal direction, and a sheave disposed on one end side of the axis S of the hoisting machine main body 10. 11 and a brake unit 12 disposed on the other end side of the axis S. The hoisting machine main body 10 includes an electric motor (not shown) whose rotating shaft (not shown) extends along the axis S, and the rotating shaft of the electric motor rotates about the axis S. Two screw holes 10B and 10B for attaching a carrying eyebolt (not shown) are provided on the upper surface portion 10A of the hoisting machine main body 10. These screw holes 10B, 10B are both formed vertically above the axis S described above.

  The sheave 11 is connected to the electric motor of the hoisting machine body 10 and rotates in conjunction with the electric motor. The main rope 5 (FIG. 1) is wound around the sheave 11. The brake unit 12 normally stops the electric motor of the hoisting machine body 10 and fixes the rotation of the sheave 11 to fix the car 3 when the car 3 in the hoistway 2 is stopped at a predetermined floor 8. Prevents from moving up and down. The brake unit 12 is also used when the car 3 in the hoistway 2 is urgently stopped.

  The brake unit 12 is a disc brake unit, for example, and is detachably formed on the hoisting machine main body 10. The hoisting machine main body 10 includes a main body flange portion 10C at an end portion on the brake unit 12 side, and the brake unit 12 includes a brake flange portion 12A combined with the main body flange portion 10C. The main body flange portion 10C and the brake flange portion 12A are fixed by bolts 13.

  The hoisting machine main body 10 includes a brake disk (not shown) connected to the rotating shaft of the electric motor, and the brake unit 12 is configured to be movable with respect to the brake disk in the direction of the axis S (not shown). And the brake pad is pressed against the brake disc to stop the rotation of the brake disc (rotary shaft).

  In the hoisting machine 6 having the above-described configuration, work for attaching and detaching the brake unit 12 to the hoisting machine main body 10 may occur during maintenance and inspection of the hoisting machine 6. In the present embodiment, as shown in FIG. 1, the hoisting machine 6 is arranged at the upper part of the hoistway 2, so that the car 3 is raised to the vicinity of the hoisting machine 6, and the upper surface of the car 3. The worker rises to 3A, and work is performed on the upper surface 3A of the car 3. Since the brake unit 12 is, for example, a heavy object having a weight of about 30 kg, there is a demand for attaching and detaching the brake unit 12 safely and easily.

  Next, the brake attaching / detaching jig 20 of this embodiment will be described. The brake attaching / detaching jig 20 enables the brake unit 12 to be attached to and detached from the hoisting machine main body 10 safely and easily. FIG. 3 is an external perspective view of the hoisting machine to which the brake attaching / detaching jig is attached. FIG. 4 is a schematic side view of a hoisting machine to which a brake attaching / detaching jig is attached. FIG. 5 is an exploded perspective view of the brake attaching / detaching jig. As shown in FIGS. 3 and 4, the brake attaching / detaching jig 20 includes a base plate 21 fixed to the upper surface portion 10 </ b> A of the hoisting machine body 10, a support shaft 22 erected on the base plate 21, and a support A suspension beam member 23 whose base end portion 23 </ b> A is supported by the shaft 22 and a guide rail 26 provided at a distal end portion 23 </ b> B of the suspension beam member 23 are provided. As shown in FIGS. 4 and 5, the brake attaching / detaching jig 20 includes a slide member 27 that slides on the guide rail 26, and a bracket (connecting member) 28 that connects the slide member 27 and the brake unit 12. Is provided.

  As shown in FIG. 3, the base plate 21 is a flat plate member disposed on the upper surface portion 10 </ b> A of the hoisting machine body 10, and the bolts 15 are respectively inserted into the screw holes 10 </ b> B (FIG. 2) of the hoisting machine body 10. It is fixed using. Further, the base plate 21 has one side edge portion 21 </ b> A formed in an arc shape, and the side edge portion 21 </ b> A projects in the width direction of the hoisting machine body 10 from the hoisting machine body 10. The base plate 21 is not limited to the one in which the side edge portion 21A is formed in an arc shape, and may be rectangular. Moreover, it is good also as a structure which protrudes not only one side edge part 21A but both the side edge parts 21A in the width direction.

  As shown in FIG. 4, the support shaft 22 is fixed to the base plate 21 and extends perpendicularly to the base plate 21. Further, when the base plate 21 is fixed to the hoisting machine main body 10, the support shaft 22 is provided between the bolts 15, 15 on the base plate 21 and on the line connecting the bolts 15, 15. Preferably it is. Thereby, when the base plate 21 is fixed to the hoisting machine main body 10, the support shaft 22 is positioned vertically above the axis S of the hoisting machine main body 10 (the hoisting machine 6).

  The suspension beam member 23 is a long member having rigidity, and suspends and holds the brake unit 12 when the brake unit 12 is detached from the hoisting machine main body 10 or attached to the hoisting machine main body 10. As shown in FIG. 3, the suspension beam member 23 has a base end portion 23 </ b> A supported by the above-described support shaft 22, and a distal end portion 23 </ b> B that passes above the brake unit 12 and is in the above-described axis S direction than the brake unit 12. It extends to a position spaced apart. In the present embodiment, the suspension beam member 23 includes a pair of angle members 24 and 24 having an L-shaped cross section, and one end in the longitudinal direction of the angle members 24 and 24 between the angle members 24 and 24. And a base material 25 to be connected in a state of providing. For this reason, the base material 25 corresponds to the base end portion 23 </ b> A of the suspended beam member 23. The guide rail 26 is supported by being sandwiched between the angle members 24, 24 on the other end side of the angle members 24, 24 that become the distal end portion 23 </ b> B of the suspension beam member 23.

  The above-described base material 25 includes an opening 25A (FIG. 4) provided between the angle members 24, 24, and the support shaft 22 penetrates the base material 25 through the opening 25A. For this reason, the suspended beam member 23 is rotatably supported around the axis of the support shaft 22. According to this configuration, the brake unit 12 can be easily moved by rotating the suspension beam member 23 around the support shaft 22 while the brake unit 12 is suspended. The attachment / detachment work can be easily performed. It goes without saying that the support shaft 22 and the base material 25 may be supported via a bearing such as a ball bearing.

  As shown in FIG. 5, the guide rail 26 is formed using, for example, a square pipe and is supported by being sandwiched between the angle members 24 and 24. The guide rail 26 is provided with a notch 26A along the longitudinal direction at the center in the width direction of the bottom surface portion, and the bottom surface portions 26B and 26B located on both sides of the notch 26A hold the slide member 27 so as to be slidable. .

  As shown in FIG. 5, the slide member 27 includes a main body 30, four rollers 31 that are rotatably supported by the main body 30, and a shaft portion 32 that extends downward from the main body 30. Two rollers 31 are provided side by side in the width direction and the longitudinal direction of the guide rail 26, and respectively run on both bottom surface portions 26 </ b> B and 26 </ b> B of the guide rail 26. The shaft portion 32 passes through the notch 26 </ b> A of the guide rail 26 and extends below the guide rail 26. A thread portion is formed on the outer periphery of the shaft portion 32, and a nut 33 shown in FIG. 4 is attached. In the present embodiment, the slide member 27 includes the rotatable roller 31. However, for example, a sliding portion formed of a material having a small frictional resistance is provided on the bottom surface of the main body 30, and both the guide rails 26 are provided. It is good also as a structure which slides on the bottom face parts 26B and 26B.

  As shown in FIG. 4, the bracket 28 is connected to the shaft portion 32 of the slide member 27 and extends horizontally, and is fixed to the brake unit 12 by extending downward from the front end of the horizontal surface portion 28A. And a surface portion 28B. The brake unit 12 is provided with a fixing screw hole (not shown) on the end surface in the axis S direction, and the brake unit 12 and the bracket 28 (fixing surface portion 28B) are fixed to each other by a bolt 34 penetrating the fixing surface portion 28B. Is done. The horizontal plane portion 28A is provided with a long hole 35 that extends through the shaft portion 32 and extends in the axis S direction (longitudinal direction of the guide rail 26). The bracket 28 is connected to the slide member 27 by attaching a nut 33 to the shaft portion 32 through which the long hole 35 is passed. In the present embodiment, the height position of the bracket 28 can be adjusted by the height position of the nut 33, and the shaft portion 32 and the nut 33 constitute a height adjustment portion. Further, the bracket 28 can be adjusted in the direction of the axis S of the long hole 35 with respect to the shaft portion 32.

  As described above, the brake attaching / detaching jig 20 includes the guide rail 26 provided at the distal end portion 23 </ b> B of the suspension beam member 23, the slide member 27 that is held by the guide rail 26 and that slides on the guide rail 26, and the slide Since the bracket 28 that connects the member 27 and the brake unit 12 is provided, the brake unit 12 can be slid along the guide rail 26 while the brake unit 12 is suspended from the suspension beam member 23. . Therefore, the brake unit 12 can be moved closer to or away from the hoisting machine main body 10 in the direction of the axis S while the brake unit 12 is suspended from the suspension beam member 23, and the brake unit 12 can be easily attached and detached. Can be done.

  The suspension beam member 23 suspends and holds the brake unit 12 as described above. Further, since the brake unit 12 slides along the guide rail 26, a large bending moment due to the load of the brake unit 12 is generated on the support shaft 22 that supports the suspension beam member 23 at the base end portion 23A. In the present embodiment, as shown in FIGS. 3 and 4, the suspension beam member 23 is a leg that extends toward the base plate 21 between the proximal end portion 23 </ b> A and the distal end portion 23 </ b> B and contacts the base plate 21. The unit 40 is provided. Specifically, the leg portions 40 are attached to the bottom surfaces of the angle members 24 and 24, respectively. By providing the leg 40, the leg 40 receives a load when the brake unit 12 is suspended, so that the bending moment generated in the support shaft 22 can be reduced. With this configuration, it is not necessary to increase the strength of the support shaft 22 excessively, and the weight reduction and simplification of the brake attaching / detaching jig 20 can be realized.

  Further, in the present embodiment, a ball that rolls on the base plate 21 when the suspension beam member 23 is rotated around the support shaft 22 as shown in FIG. (Rolling part) 41 is provided. According to this configuration, the suspended beam member 23 can be easily rotated around the support shaft 22 in a state where the brake unit 12 is suspended, and the movement and handling of the brake unit 12 are facilitated. Further, as shown in FIGS. 3 and 4, the base plate 21 has a stopper 42 for stopping the rotation of the suspension beam member 23 when the suspension beam member 23 is rotated around the axis of the support shaft 22. Is provided.

  Next, for example, when the brake unit 12 is replaced, an operation when the brake unit 12 is attached / detached using the brake attaching / detaching jig 20 will be described. 6 and 7 are diagrams for explaining the operation when the brake unit is attached and detached. 6 and 7, the description of the internal structure of the hoisting machine main body 10 from which the brake unit 12 is removed is omitted.

  As shown in FIG. 1, the hoisting machine 6 provided with the brake unit 12 is arranged on a stage 7 provided at the upper part of the hoistway 2, so that the car 3 is raised to the vicinity of the hoisting machine 6. Then, an operator ascends to the upper surface 3A of the car 3, and the brake unit 12 is attached and detached on the upper surface 3A of the car 3. When removing the brake unit 12 from the hoisting machine main body 10, the brake attaching / detaching jig 20 is attached to the hoisting machine 6 as shown in FIG. 3. Specifically, the base plate 21 of the brake attaching / detaching jig 20 is placed on the upper surface portion 10A of the hoisting machine main body 10, and the base plate 21 is bolted to the screw hole 10B for the eyebolt of the hoisting machine main body 10 (FIG. 2). Fix with 15. Further, the fixing surface portion 28 </ b> B of the bracket 28 is fixed to the end surface in the axis S direction of the brake unit 12 with the bolts 34. In this case, as shown in FIG. 4, when the shaft portion 32 of the slide member 27 and the nut 33 are operated to adjust the height position of the bracket 28 to an appropriate height, the bracket 28 is attached to the brake unit 12. Becomes easy. When installing the hoisting machine 6 on the stage 7, the brake attaching / detaching jig 20 may be attached to the hoisting machine 6 in advance.

  Next, the bolt 13 (FIG. 3) that connects the brake unit 12 and the hoisting machine main body 10 is removed. In this case, since the brake unit 12 is suspended from the suspension beam member 23 (guide rail 26) via the bracket 28 and the slide member 27 (FIG. 4), the brake unit 12 does not fall. Subsequently, the worker grasps the brake unit 12 by hand and moves the brake unit 12 in the direction away from the hoisting machine main body 10 along the axis S direction as shown in FIG. In this case, as shown in FIG. 4, each roller 31 of the slide member 27 travels in the guide rail 26, so that the brake unit 12 can be easily pulled out in the direction of the axis S with a small force.

  Next, as shown in FIG. 7, the worker rotates the suspension beam member 23 around the axis T of the support shaft 22 in the clockwise direction while holding the brake unit 12 by hand. Then, for example, as shown in FIG. 7, the brake unit 12 can be moved to the inside of the safety fence 9 provided on the upper surface 3 </ b> A of the car 3, and the brake unit 12 is moved on the upper surface 3 </ b> A of the car 3. It can be safely removed from the bracket 28.

  Further, when a new brake unit 12 for replacement is attached to the hoisting machine main body 10, a procedure reverse to the above-described removal procedure is performed. Specifically, as shown in FIG. 7, the suspension beam member 23 is rotated around the axis T of the support shaft 22 so that the bracket 28 is positioned inside the safety fence 9 of the car 3, and in this state, a new The brake unit 12 is attached to the bracket 28.

  Then, the worker rotates the suspension beam member 23 counterclockwise around the axis T of the support shaft 22 and moves it until the brake unit 12 is positioned on the axis S as shown in FIG. Next, in a state where the brake unit 12 is held by hand, the brake unit 12 is moved along the axis S direction in a direction approaching the hoisting machine main body 10. Also in this case, each roller 31 of the slide member 27 travels in the guide rail 26, so that the brake unit 12 can be easily brought close to the hoisting machine body 10 with a small force.

  Next, the brake unit 12 and the hoisting machine main body 10 are aligned, and the brake unit 12 and the hoisting machine main body 10 are connected by the bolt 13. Finally, the brake attaching / detaching jig 20 is removed from the hoisting machine 6 to finish the work.

  As described above, the brake attaching / detaching jig 20 according to the present embodiment attaches / detaches the brake unit 12 to / from the hoisting machine main body 10 arranged on the upper part of the elevator hoistway 2. A base plate 21 fixed to 10A, a support shaft 22 erected on the base plate 21, a base end portion 23A supported by the support shaft 22, and a suspension beam having a distal end portion 23B extending above the brake unit 12. Material 23, guide rail 26 provided at the tip 23B of the suspension beam material 23, and a slide member that is held by the guide rail 26 and that slides along the longitudinal direction of the suspension beam material 23 27, and a bracket 28 that connects the slide member 27 and the brake unit 12. According to this configuration, since the brake unit 12 can be slid along the guide rail 26 while the brake unit 12 is suspended from the suspension beam member 23, the brake unit 12 can be moved to the hoisting machine main body 10. On the other hand, the brake unit 12 can be easily approached or separated in the direction of the axis S, and the brake unit 12 can be easily attached and detached.

  Further, according to the present embodiment, the suspension beam member 23 includes the leg portion 40 that extends toward the base plate 21 and contacts the base plate 21 between the base end portion 23A and the distal end portion 23B. Since the leg portion 40 receives a part of the load when the brake unit 12 is suspended, the bending moment generated in the support shaft 22 can be reduced. Therefore, it is not necessary to increase the strength of the support shaft 22 excessively, and the weight reduction and simplification of the brake attaching / detaching jig 20 can be realized.

  Further, according to the present embodiment, the suspension beam member 23 is rotatably supported around the axis of the support shaft 22, so that the suspension beam member 23 is supported by the shaft of the support shaft 22 in a state where the brake unit 12 is suspended. By rotating around, for example, the brake unit 12 can be easily moved inside the safety fence 9 provided on the upper surface 3A of the car 3, and the brake unit 12 can be easily attached and detached. it can.

  In addition, according to the present embodiment, since the leg portion 40 includes the ball 41 that rolls on the base plate 21 at the lower end portion, the suspension beam member 23 is attached to the support shaft 22 while the brake unit 12 is suspended. The brake unit 12 can be easily rotated and handled by easily rotating around the axis.

  In addition, according to the present embodiment, the slide member 27 includes the shaft portion 32 and the nut 33 that can adjust the height position of the bracket 28 with respect to the slide member 27. Connection with the unit 12 can be easily performed.

  Although one embodiment of the present invention has been described above, this embodiment is presented as an example and is not intended to limit the scope of the invention. The present embodiment can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. This embodiment and its modifications are included in the scope of the present invention and the gist thereof, and are also included in the invention described in the claims and the equivalents thereof.

  DESCRIPTION OF SYMBOLS 1 Elevator apparatus, 2 hoistway, 3 passenger car, 3A upper surface, 6 hoisting machine, 7 stage, 9 safety fence, 10 hoisting machine main body, 10A upper surface part, 10B screw hole, 10C main body flange part, 11 sheave, 12 Brake unit, 12A Brake flange part, 20 Brake attachment / detachment jig, 21 Base plate, 22 Support shaft, 23 Hanging beam material, 23A Base end part, 23B Tip part, 24 Angle material, 25 Base material, 25A Opening, 26 Guide rail , 26B bottom surface part, 27 slide member, 28 bracket (connection member), 31 roller, 32 shaft part (height adjustment part), 33 nut (height adjustment part), 40 leg part, 41 ball (rolling part), S axis

Claims (5)

A brake attaching / detaching jig for attaching / detaching a brake unit to / from a hoisting machine main body arranged at an upper part of an elevator hoistway,
A base plate fixed to the upper surface of the hoisting machine body;
A support shaft erected on the base plate;
A suspension beam material in which a base end portion is supported by the support shaft and a distal end portion extends above the brake unit;
A guide rail provided at the tip of the suspension beam material;
A slide member that is held by the guide rail and slides along the longitudinal direction of the suspension beam member; and
A connecting member for connecting the slide member and the brake unit;
A brake attaching / detaching jig comprising:   2. The brake attachment / detachment according to claim 1, wherein the suspension beam member includes a leg portion that extends toward the base plate and abuts against the base plate between the base end portion and the tip end portion. jig.   The brake attachment / detachment jig according to claim 1 or 2, wherein the suspension beam member is rotatably supported around an axis of the support shaft. The brake attaching / detaching jig according to claim 2, wherein the leg portion includes a rolling portion that rolls on the base plate at a lower end portion.   5. The brake attaching / detaching jig according to claim 1, wherein the slide member includes a height adjusting unit capable of adjusting a height position of the connecting member with respect to the slide member.

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