JP2013112485A - Elevator wheel device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an elevator wheel device whose axle can be easily produced, assembled, and exchanged.SOLUTION: In each end of the axle 25, a projecting portion 25a is so formed as to penetrate through a support beam 23. In a perimeter of the projecting portion 25a, a retaining slot 25b is formed along a circumference direction. In a retaining member 27, a penetrating hole 27c through which the projecting portion 25a penetrates is formed. The penetrating hole 27c has an inserting part 27d which permits passage from the tip of projecting portion 25a to the retaining slot 25b and an engaging part 27e which engages with the retaining slot 25b. The retaining member 27 is fixed to the support beam 23 with the engaging part 27e engaged with the retaining slot 25b.

Description

  The present invention relates to an elevator car apparatus having a pair of support members, an axle fixed between the support members, and a vehicle main body such as a return wheel or a suspended vehicle rotatably attached to the axle.

  In a conventional elevator return wheel device, a pair of mounting tables facing each other are fixed on a pair of support beams. The axle is fixed horizontally between the mounts. The return wheel is rotatably supported on the axle via a bearing. Further, in order to firmly fix the axle to the mounting base, the axial end of the axle is threaded and a ring nut is screwed (see, for example, Patent Document 1).

JP 2003-238049 A

  In the conventional elevator return wheel device as described above, since the axle is fixed to the mounting base using a ring nut, it is necessary to perform precise screw machining on the axle, and a dedicated tool is required for assembly. It took time to assemble. In addition, when replacing the return wheel, a special tool is required locally, and a space for using the special tool is also required, so that the replacement work cannot be easily performed.

  The present invention has been made to solve the above-described problems, and it is an object of the present invention to provide an elevator vehicle apparatus that can facilitate the manufacture of an axle and can be easily assembled and replaced. Objective.

  The elevator vehicle apparatus according to the present invention has a pair of support members opposed to each other, a protruding portion protruding through at least one of the support members, and an axle fixed between the support members, and rotating to the axle. A vehicle body that is freely attached, and a retaining member that prevents the protruding portion from coming off from the support member. A retaining groove is provided on the outer periphery of the projecting portion along the circumferential direction. Is provided with a through-hole through which the protruding portion passes, and the through-hole includes an insertion portion that allows passage from the tip of the protruding portion to the retaining groove and an engaging portion that engages with the retaining groove. The retaining member is fixed to the support member in a state where the engaging portion is engaged with the retaining groove.

  The elevator vehicle apparatus according to the present invention only needs to be provided with a retaining groove on the axle, and when assembling or replacing, the engaging portion is engaged with or released from the retaining groove. It is only necessary to slide the retaining member in the lateral direction. Therefore, the axle can be easily manufactured, and assembly and replacement can be facilitated.

1 is a perspective view showing an elevator according to Embodiment 1 of the present invention. It is a front view which shows the counterweight return vehicle apparatus of FIG. It is sectional drawing which follows the III-III line of FIG. It is a perspective view which shows the counterweight return vehicle apparatus of FIG. FIG. 5 is a perspective view showing a retaining member of FIG. 4. It is a front view which shows the counterweight return vehicle apparatus by Embodiment 2 of this invention. It is sectional drawing which follows the VII-VII line of FIG. It is a front view which shows the counterweight suspension vehicle apparatus by Embodiment 3 of this invention. It is a front view which shows the car suspension apparatus by Embodiment 4 of this invention.

Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.
Embodiment 1 FIG.
FIG. 1 is a perspective view showing a machine room-less type elevator according to Embodiment 1 of the present invention, which is seen through a hoistway. In the figure, a car shock absorber base 2 and a counterweight shock absorber base 3 are fixed to the bottom of the hoistway 1. A car shock absorber (not shown) is installed on the car shock absorber base 2. On the counterweight buffer stand 3, a counterweight buffer (not shown) is installed.

  In the hoistway 1, a pair of car guide rails 4a, 4b and a pair of counterweight guide rails 5a, 5b are installed. The lower end portions of the car guide rails 4 a and 4 b are located on the car shock absorber table 2. The lower ends of the counterweight guide rails 5a and 5b are positioned on the counterweight buffer base 3.

  The car 6 is raised and lowered in the hoistway 1 while being guided by the car guide rails 4a and 4b. The counterweight 7 is raised and lowered in the hoistway 1 while being guided by the counterweight guide rails 5a and 5b. The counterweight 7 is disposed behind the car 6 so as to face the back of the car 6 when positioned at the same height as the car 6 (rear fall-off type).

  A hoisting machine 8 that raises and lowers the car 6 and the counterweight 7 is installed in the lower part of the hoistway 1. The hoisting machine 8 includes a drive sheave, a hoisting machine motor that rotates the driving sheave, and a hoisting machine brake that brakes the rotation of the driving sheave.

  At the top of the hoistway 1, an L-shaped return beam 9 is installed. The return wheel 9 has a car return car beam 10 and a counterweight return car beam 11 connected to one end of the car return car beam 10 at a right angle.

  A pair of car return wheels 12 a and 12 b are supported on the car return car beam 10. A counterweight return wheel 13 is supported by the counterweight return beam 11.

  A pair of car suspension wheels 14 a and 14 b are provided at the lower part of the car 6. On the upper part of the counterweight 7, a counterweight suspension wheel 15 is provided.

  The car 6 and the counterweight 7 are suspended in the hoistway 1 by a plurality of main ropes 16 (only one is shown in the figure) as suspension means.

  Between the vicinity of the upper end portion of the car guide rail 4b and the vicinity of the upper end portion of the counterweight guide rail 5b, a leashing beam 17 is fixed horizontally. The tie-down beam 17 is provided with a cage-side tie-down portion (not shown). The counterweight return beam 11 is provided with a counterweight-side leash stopper 18.

  The main rope 16 has a first end connected to the car-side rope stopper and a second end connected to the counterweight-side rope stopper 18. The main rope 16 is, in order from the first end, the car suspension wheels 14a and 14b, the car return wheels 12a and 12b, the driving sheave of the hoisting machine 8, the counterweight return wheel 13, and the counterweight suspension wheel 15. (2: 1 roping).

  A control panel 19 is installed on the hoistway wall near the lowermost floor. The control panel 19 is provided with an elevator control device that controls the operation of the car 6. A control cable 20 is suspended between the hoistway wall and the car 6.

  2 is a front view showing the counterweight return gear device of the elevator apparatus of FIG. 1, FIG. 3 is a sectional view taken along line III-III of FIG. 2, and FIG. 4 is a perspective view showing the return wheel device of FIG. . A pair of support beams (support members) 23 having a U-shaped cross section are supported on the counterweight return beam 11. The support beams 23 are arranged parallel to each other and horizontally. A pair of elastic bodies 21 are interposed between each support beam 23 and the counterweight return beam 11.

  Each support beam 23 includes a vertical flat plate-like facing portion 23a, a flat plate-like lower horizontal portion 23b formed by bending the lower end of the facing portion 23a to the outside at a right angle, and the upper end of the facing portion 23a at a right angle to the outside. A flat upper horizontal portion 23c formed by bending. The facing portions 23a are opposed to each other with the counterweight return wheel 13 interposed therebetween.

  The lower horizontal portion 23 b is fixed on the elastic body 21 by a plurality of fasteners 24 fixed to the elastic body 21. As the fastener 24, for example, a stat bolt standing on the elastic body 21 and a nut screwed to the stat bolt are used.

  A columnar axle 25 is fixed horizontally between the facing portions 23a. A counterweight wheel 13 that is a car body is rotatably attached to an axle 25 via a bearing 26. A main rope 16 is wound around the counterweight wheel 13 in an inverted U shape.

  A pair of projecting portions 25a projecting out of the facing portion 23a through the facing portion 23a are provided at both axial ends of the axle 25. Each facing portion 23a is provided with a circular hole through which the axle 25 passes. The diameters of these holes are substantially the same as the outer diameter of the axle 25. An annular retaining groove (stepped processed portion) 25b that is continuous along the circumferential direction is provided on the outer periphery of the protruding portion 25a.

  Each support beam 23 is fixed with a retaining member 27 having an L-shaped cross section that prevents the protruding portion 25a from coming off the facing portion 23a. The retaining member 27 is fixed to the support beam 23 in a state of being superimposed on the support beam 23, and also serves as a reinforcing material for the support beam 23.

  Each retaining member 27 is formed by bending a flat plate-shaped retaining portion 27a superimposed on the facing portion 23a and a lower end portion of the retaining portion 27a at a right angle, and fixing the flat plate shape superimposed on the lower horizontal portion 23b. Part 27b.

  The fixing portion 27 b is fixed (co-fastened) to the elastic body 21 that is a member that receives the support beam 23 with a fastener 24 that is common to the support beam 23. The retaining portion 27a is fixed to the facing portion 23a by a plurality of fasteners 28 such as bolts. The retaining portion 27a is provided with a through hole 27c through which the protruding portion 25a passes.

  FIG. 5 is a perspective view showing the retaining member 27 of FIG. The through hole 27c has an insertion portion 27d that allows passage from the tip of the protruding portion 25a to the retaining groove 25b, and an engaging portion 27e that engages with the retaining groove 25b. In this example, the through-hole 27c is a dharma in which an insertion portion 27d that is a circular hole having substantially the same diameter as the outer shape of the axle 25 and an engagement portion 27e that is a part of a hole having a smaller diameter than the insertion portion 27d are combined. It is a hole.

  The retaining member 27 is fixed to the support beam 23 with the engaging portion 27e engaged with the retaining groove 25b. When the axle 25 is fixed to the support beam 23, after the protruding portion 25a is passed through the insertion portion 27d, the retaining member 27 is slid laterally, and the edge portion of the engaging portion 27e is inserted into the retaining groove 25b. And engage. In this state, the retaining member 27 is fixed to the support beam 23 by the fasteners 24 and 28. Thereby, the axle 25 is firmly fixed between the support beams 23.

  In such a counterweight wheel device, it is not necessary to perform precise screw machining on the axle 25, and it is only necessary to form a simple retaining groove, thereby facilitating the production of the axle 25 and reducing the cost. be able to.

  Further, at the time of assembly or replacement, it is only necessary to slide the retaining member 27 laterally in order to engage the engagement portion 27e with the retaining groove 25b or release the engagement. For this reason, it is not necessary to use a dedicated tool, a space for using the dedicated tool is not required, and assembly and replacement can be facilitated.

  Further, since the retaining member 27 is overlapped with the support beam 23 and also serves as a reinforcing material, it is possible to easily secure the bending rigidity necessary for the portion supporting the axle 25 and torsional rigidity of the entire support beam 23. Can be improved. Moreover, the trouble of welding another reinforcing material can also be saved.

  Furthermore, since the support beam 23 and the retaining member 27 are fixed to the elastic body 21 with a common fastener 24, the number of parts can be reduced and assembly can be facilitated. Further, the support beam 23 and the retaining member 27 are integrated with respect to the load, and the axle 25 can be stably held.

Embodiment 2. FIG.
Next, FIG. 6 is a front view showing a counterweight vehicle according to Embodiment 2 of the present invention, and FIG. 7 is a cross-sectional view taken along line VII-VII in FIG. In this example, the cross-sectional shape of the retaining member 27 is C-shaped. Other configurations are the same as those in the first embodiment.

  As described above, the bending rigidity and the torsional rigidity of the support beam 23 can be arbitrarily increased by appropriately changing the cross-sectional shape, plate thickness, width dimension, height dimension, material, and the like of the retaining member 27.

Embodiment 3 FIG.
Next, FIG. 8 is a front view showing a counterweight suspension vehicle apparatus according to Embodiment 3 of the present invention. In this example, the axle 25 of the counterweight suspension vehicle (vehicle main body) 15 is supported on the upper frame (support member) 31 of the counterweight 7, and a flat plate-shaped retaining member 27 provided with a through hole 27 c. Is fixed to the upper frame 31. Other configurations are the same as those in the first embodiment.

  Thus, the present invention can also be applied to the counterweight suspension vehicle device, and the same effects as those of the first embodiment can be obtained.

Embodiment 4 FIG.
Next, FIG. 9 is a front view showing a car suspension device according to Embodiment 4 of the present invention. In FIG. 1, the car suspension wheels 14 a and 14 b are provided at the lower part of the car 6. In this example, the car suspension car 14 is provided at the upper part of the car 6. The axle 25 of the car suspension vehicle (car body) 14 is supported on the upper beam (support member) 32 of the car 6, and the retaining member 27 having a U-shaped cross section provided with a through hole 27 c is fixed to the upper beam 32. Has been. Other configurations are the same as those in the first embodiment.

  Thus, the present invention can also be applied to a car suspension device, and the same effects as those of the first embodiment can be obtained.

In the first to fourth embodiments, the counterweight suspension vehicle device, the counterweight suspension vehicle device, and the car suspension vehicle device are shown. However, the present invention may be applied to other vehicle devices such as a cage return vehicle device. Applicable. For example, when two vehicle bodies are arranged like the car return wheels 12a and 12b in FIG. 1, even if two axles are fixed by a common retaining member having two through holes, You may fix separately with a stop member.
The present invention can also be applied to a vehicle device around which ropes other than the main rope 16 that suspends the car 6 (speed governor rope, compen- sion rope) and the like are wound.
Furthermore, in the above example, the main rope 16 is shown as the suspension means, but the suspension means may be a plurality of belts.
Furthermore, in the above example, both ends of the axle 25 have the same structure. However, the shaft stopper structure of the present invention is applied only to one shaft end of the axle 25, and the other shaft end has another structure. It may be held with.
Further, the retaining groove 25 b is not necessarily provided on the entire circumference of the axle 25.
Furthermore, the depth of the retaining groove 25b may not be constant.
Furthermore, the shape of the through hole 27c is not limited to a dharma hole.

  13 counterweight car (car body), 14 car suspension car (car body), 15 counterweight car (car body), 23 support beam (support member), 24 fastener, 25 axle, 25a protrusion, 25b Retaining groove, 27 Retaining member, 27c Through hole, 27d Insertion part, 27e Engaging part, 31 Upper frame (support member), 32 Upper beam (support member).

Claims (4)

A pair of support members facing each other,
An axle shaft having a projecting portion projecting through at least one of the support members and fixed between the support members;
A vehicle main body rotatably attached to the axle, and a retaining member for preventing the protrusion from coming off from the support member,
On the outer periphery of the protrusion, a retaining groove is provided along the circumferential direction,
The retaining member is provided with a through hole through which the protruding portion passes,
The through-hole has an insertion portion that allows passage from the tip of the protruding portion to the retaining groove, and an engaging portion that engages with the retaining groove,
The vehicle apparatus for an elevator, wherein the retaining member is fixed to the support member in a state where the engaging portion is engaged with the retaining groove.   The elevator vehicle apparatus according to claim 1, wherein the retaining member is fixed to the support member in a state of being superimposed on the support member, and also serves as a reinforcing member for the support member.   The elevator vehicle apparatus according to claim 1 or 2, wherein the retaining member is fixed to a member that receives the support member by a common fastener with the support member.   The said through-hole is a dharma hole which combined the said insertion part which is a circular hole, and the engaging part which is a part of a small diameter hole rather than the said insertion part, The Claim 1 characterized by the above-mentioned. The elevator car apparatus described in any one of the items up to 3.

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