JPH0597378A - Installation device for bearing of passenger conveyor - Google Patents

Abstract

PURPOSE:To install a bearing in a short time without moving a terminal gear shaft even in the case where no sufficient space formed on the side of a passenger conveyor. CONSTITUTION:A reinforcing plate 17 is installed at the opened port part of a terminal gear 3, and a hydraulic cylinder 19 is installed on the counter bearing side of the reinforcing plate 17. The rod 20 of the hydraulic cylinder 19 is connected with a reinforcing plate 18 arranged on the counter terminal gear 3 side of a bearing box 4 through a universal joint 1, and a cylindrical body having the inside diameter nearly equal to a bearing is fitted in shiftable manner into a hole in the cylinder part of the reinforcing plate, and the cylindrical body is attached with a terminal gear shaft, and the cylinder part is attached with the bearing, and the reinforcing plate 18 is driven to the terminal gear 3 side by the hydraulic cylinder 19, and the bearing 9 is shifted to the terminal gear shaft 10 and fitted.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bearing mounting device for a passenger conveyor.

[0002]

2. Description of the Related Art A side view of a general passenger conveyor is shown in FIG. 5, in which a truss 2 constituting a main frame is provided on both sides of the passenger conveyor 1, and steps are provided near both ends of the truss 2. A pair of terminal gears 3 for traveling the vehicle are respectively arranged, and these terminal gears 3 are attached to a terminal gear shaft 10 as shown in FIG. 4 which is an enlarged front view of a main part of FIG. The terminal gear shaft 10 is supported by the truss 2 via a bearing 9. That is, the bearing box 4 is attached to the truss 2 with the bolts 16, and the bearing 9 is housed in the bearing box 4.
A terminal gear shaft 10 is pivotally supported by the bearing 9.

Generally, in order to secure a safety device for the passenger conveyor, the bearing 9 of the terminal shaft 10 is replaced with a new one when the cumulative operating time of the passenger conveyor reaches a preset set time. As shown in FIG. 3, a conventional bearing removing device used for this work is composed of a support plate 12, a mounting bolt 11 for the support plate 12 and a push-out bolt 13, and a terminal gear is used to remove the bearing. The shaft 10 is supported by the support base 15, and the bolts 16 are all loosened and removed, then the support plate 12 is fixed to the support portion 4a of the bearing 4 by the bolts 11, and then the screws provided on the support plate 12 are fixed. The bolt 13 is screwed into the hole, and the end portion of the bolt 13 is brought into contact with the end surface of the terminal gear shaft 10. In this state, if the bolt 13 is further screwed in using a spanner, the support plate 12
The bearing box 4 accommodating the bearing 9 fixed to the support plate 12 can be removed from the terminal gear shaft 10 to which the terminal gear 3 is fixed by slipping out toward the building wall 14 side. In this way, the bearing 9 is taken out from the terminal gear shaft 10 together with the bearing housing 4, and the new bearing 9 is mounted on the terminal gear shaft 10 by means such as pushing the old bearing 9 after replacing it with a new one.

As a bearing removing device of this type,
It is described in Japanese Utility Model Laid-Open No. 62-201675.

[0005]

However, depending on the building in which the passenger conveyor is installed, the space A between the building wall 14 and the truss 2 shown in FIG. It may not be possible to mount it on the shaft 10. Therefore, it is conceivable that the terminal gear shaft 10 to which the terminal gear 3 exceeding 300 kilograms is fixed by using a lifting device by removing a part of the left and right rehearsals, step chains and other related parts not shown, This is a work method of lifting the bearing 9 by a maintenance worker and removing the bearing 9 or attaching a new one in this state. However, this requires a large amount of work, and even a skilled person takes a long time.

It is an object of the present invention to provide a bearing mounting device for a passenger conveyor which can mount the bearing in a short time with almost no movement of the terminal gear shaft even when there is not enough space on the side. .

[0007]

In order to achieve the above-mentioned object, the present invention is designed so that a metal fitting attached to an opening of a terminal gear and an end surface of a bearing on the side opposite to the terminal gear are contacted with each other and the center thereof is the above-mentioned. A bearing plate having a cylindrical portion having a hole with an inner diameter similar to that of the bearing, a columnar body movably fitted in the hole, and a rod supported by the bearing side opposite to the metal plate and the rod being the metal plate. And a hydraulic cylinder connected to the above-mentioned contact plate.

[0008]

In the bearing mounting device for the passenger conveyor according to the present invention, when mounting the bearing, first, a pad is attached to the opening of the terminal gear, and the pad is brought into contact with the end face of the new bearing opposite to the terminal gear. At the same time, the above bearing is fitted to the bearing side end of the cylindrical body inserted in the hole, and the rod of the hydraulic cylinder provided on the opposite bearing side of the pad is connected to the abutting plate, and the hydraulic cylinder is operated to operate the rod. When the contact plate is pulled toward the terminal gear side via the, the cylinder and the terminal gear shaft come into contact with each other, so that only the contact metal moves, and the bearing can be moved from the cylinder and press-fitted from the terminal gear shaft. it can. On the side opposite to the terminal gear of the bearing, only the backing plate and the cylindrical body are used, so even if the gap between the building and the building is narrow, it can be configured without moving the terminal gear shaft, and it can be easily configured by using the terminal gear. The bearing can be easily transferred from the cylindrical body to the terminal gear shaft having substantially the same diameter.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a partial cross-sectional front view of a bearing mounting device for a passenger conveyor according to an embodiment of the present invention. The terminal bayer 3 is formed with a plurality of openings, and as shown in FIG. 3 which is an enlarged cross-sectional view of the main part of FIG. 3A is arranged so as to be closed, and these are fastened by bolts 24 and fixed to the terminal gear 3. An opening 17a is formed in each of the pads 17, and a series of through holes are formed by the opening 17a and the opening of the terminal gear 3. A hydraulic cylinder 19, for example, a center hole type hydraulic cylinder is provided on the right side, which is the opposite bearing side of the right side pad 17 in the figure, and the hydraulic cylinder 19 and the pad 17 are in spherical contact. There is. Hydraulic cylinder 1
Rod 20 connected to a piston driven by 9
Penetrates through a through hole formed by the pad 17 and the terminal gear 3, has a universal joint 21 in the middle, and is connected to the pad plate 18 using a screw hole 18b. The contact plate 18 is arranged in a narrow space on the side opposite to the terminal gear 3 of the truss 2 shown in FIG. 4, and is connected in the same manner as the rods 20 of the plurality of hydraulic cylinders 19 having the same structure as the hydraulic cylinders 19 described above. There is. Each of these hydraulic cylinders 19 is connected to a pressure supply source 23. Further, as shown in FIG. 2 which is an enlarged cross-sectional view, there is a cylindrical portion 18c having a hole 18b having an inner diameter substantially equal to the inner diameter of the bearing 9 in the center portion of the contact plate 18, and the cylindrical portion 18c of the terminal gear 3 side. The bearing 9 is in contact with the end surface of the. Further, a columnar body 24 that is movable in the axial direction is fitted in the hole 18b, and the end surface of the columnar body 24 on the terminal gear 3 side is in contact with the terminal gear shaft 10, and the columnar body 24 and the terminal gear shaft 10 are in contact with each other. It seems that they form a series of axes with almost the same outer diameter,
The new bearing 9 is fitted to the terminal gear 3 side of the cylindrical body 24 protruding from the cylindrical portion 18c.

Next, the work of mounting the bearing 9 will be described.
First, a pair of metal fittings 17 is provided on the opening 3A of the terminal gear 3.
Are placed and tightened with bolts 24 to fix. Moreover, the backing plate 1
The cylindrical body 24 is fitted into the hole 18b of No. 8 and the new bearing 9 is fitted into the portion of the cylindrical body 24 projecting from the cylindrical portion 18c to the terminal gear 3 side to be press-fitted into the bearing housing 4. The bearing plate 18 on the end face of the bearing 9
The cylindrical body 24 is fitted into the hole 18b so that the end surface of the cylindrical portion 18c on the terminal gear 3 side comes into contact. Thus bearing 9
Position it so that it contacts the end of the terminal gear shaft 10, and hold it by hand. Further, the left end of the rod 20 is screwed into the screw hole 18a of the contact plate 18, the rod 20 is connected to the contact plate 18, and the hydraulic cylinder 19 side is brought into the state shown in FIG. After that, hydraulic pressure is sent from the pressure supply source 23 to both hydraulic cylinders 19, the contact plate 18 is moved to the terminal gear 3 side via the rod 20, and the bearing 9 is supported via the cylindrical portion 18a of the contact plate 18. It is moved to the terminal gear 3 side together with the box 4 and press-fitted onto the terminal gear shaft 10. When the bearing 9 is moved to a predetermined position, the mounting of the bearing 9 is completed, the bearing box 4 is fixed to the truss 2 with the bolt 16, and then the hydraulic cylinder 19, the rod 20, the pad plate 18, the pad 17 and the like are removed. Finish the work. At this time, the bearing 9 is the cylindrical body 2 having a substantially equal outer diameter.
Since it moves from 4 to the terminal gear shaft 10, the movement is easy.

According to the above-described embodiment, the bearing 9 can be mounted in a short time without hoisting or moving the terminal gear shaft 10 significantly. Further, in particular, as shown in FIG. 2, since a spherical joint is provided between the hydraulic cylinder 19 and the pad 17, and a universal joint 21 is provided in the middle of the rod 20, hydraulic pressure is applied to the position of the rod 20 connected to the pad plate 18. Even if the position on the cylinder 19 side is slightly deviated, the contact plate 18 can apply a force in parallel with the terminal gear shaft 10 and evenly, and the bearing 9 can be press-fitted without making the bearing tight.

[0012]

As described above, according to the present invention, the force from the hydraulic cylinder can be transmitted to the contact plate by utilizing the opening of the terminal gear, and a sufficient space can be provided on the side of the passenger conveyor. Even if there is no bearing, the bearing can be installed in a short time with almost no movement of the terminal gear shaft. Moreover, since the bearing is fitted in a columnar body having substantially the same outer diameter as the terminal gear and is moved from the columnar body to the terminal gear, the movement can be performed easily and reliably.

[Brief description of drawings]

FIG. 1 is a partial sectional view showing a bearing mounting device in a passenger conveyor according to an embodiment of the present invention.

FIG. 2 is an enlarged sectional view of a main part of FIG.

FIG. 3 is an enlarged view of a main part at a different position in FIG.

FIG. 4 is a front view of a conventional bearing removing device.

FIG. 5 is a side view showing a general passenger conveyor.

[Explanation of symbols]

 2 truss 3 terminal gear 4 bearing box 9 bearing 10 terminal gear shaft 17 backing plate 18 backing plate 18b hole 18c cylindrical portion 19 hydraulic cylinder 20 rod 21 universal joint 23 hydraulic pressure supply source 24 cylindrical body

Claims (1)

[Claims] 1. A bearing mounting device in a passenger conveyor in which a terminal gear shaft, to which a terminal gear is attached, is supported by a truss via bearings. A hydraulic cylinder is provided on the opposite bearing side, and a contact plate with which the cylindrical portion is abutted is provided on the opposite terminal gear side of the bearing, and the rod driven by the hydraulic cylinder is passed through the metal plate to the metal plate. A columnar body is provided, which is connected to and is movably fitted in a hole formed in the cylindrical portion and having an inner diameter substantially equal to that of the bearing, and in which a bearing at the protruding end on the terminal gear side is fitted. An apparatus for mounting a bearing in a passenger conveyor, wherein an end surface on the gear side is in contact with the terminal gear shaft.