JPS5814137Y2 - Cable ring for cableway - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a receiving ring used for a cableway such as a lift, and particularly relates to the structure of a shaft seal portion of a receiving ring for a cableway.

A cableway for a lift or the like requires a rotatable cable receiving ring that supports the cables forming the track so that they can run.

As shown in FIG. 1, in the conventional cable receiver commonly used, a shaft pin 2 is supported on the cable receiver beams 1, 1', and
A receiving cable ring 4 is freely rotatably supported by this shaft pin 2 via rolling bearings 3, 3'.

The rolling bearings 3, 3' are positioned by a spacer 5 fitted onto the shaft pin 2 and a stop ring 7, 7' attached to the boss hole 6 of the cable ring 4. 8 is internally fitted into the cable receiving ring 4, and the inner ring 9
is externally fitted onto the shaft pin 2.

Furthermore, shaft sealing rings 11, 11' are provided on the outside of the shaft pin 2 on the axially outer side of the rolling bearing 3°3'.

In the conventional cable ring having such a configuration, when the shaft pin 2 is removed when assembling or replacing the cable ring, the shaft sealing rings 11, 11' are separated as individual pieces. If the shaft sealing ring 11, 11' falls off when the shaft sealing ring 11, 11' falls off during work in a place with poor working conditions, the progress of the work will be severely hindered.

Furthermore, with the structure shown in FIG. 1, it was not possible to completely prevent leakage of lubricating grease from the shaft seal and intrusion of rainwater from the outside.

This invention improves the drawbacks of the above-mentioned conventional technology, and the shaft seal part does not come off, is easy to handle during work, and can effectively prevent leakage of lubricating grease, intrusion of rainwater, etc. An object of the present invention is to provide a cable receiving ring for a cableway having a structure.

Corresponding to this purpose, the cableway receiving ring of this invention has a shaft pin on the axially outer side of the bearing in the shaft sealing part of the cableway receiving ring which is freely rotatably supported by the shaft pin via the bearing. and a second ring press-fitted into the boss hole of the receiving cable ring, the first ring having at least a portion of the axially outer end surface of the first ring and the axially inner side of the second ring. It is characterized in that it is disposed so as to face at least a portion of the end surface so as to overlap with each other while maintaining a line gap.

Hereinafter, the details of this invention will be explained in detail with reference to FIG. 2 showing one embodiment.

In FIG. 2, reference numeral 12 denotes a shaft pin, and a beam 13 is attached to a frame (not shown) in a fixed position.
．． 13'.

The shaft pin 12 supports a cable ring 15 freely rotatably via rolling bearings 14, 14', and a cable ring 1 made of a material such as rubber or polyurethane is attached to the periphery of the cable ring 15.
6 is provided, and this cable receiving ring 16 constitutes the line 1.
Support 7.

The rolling bearings 14, 14' are positioned by a spacer ring 18 fitted onto the shaft pin 12 and a stop ring 20, 20' attached to a boss hole 19 of the shaft pin 12.

The inner ring 21 of the rolling bearing 14, 14' is fitted onto the shaft pin 12, and the outer ring 22 is fitted into the boss hole 19 of the cable ring 15.
It is embedded in.

Particular attention should be paid here to the rolling bearings 14, 14.
A shaft sealing ring 23° 23' is provided on the axially outer side of the shaft.

The shaft sealing ring 23, 23' consists of a first ring 24 and a second ring 25, and the first ring 24 is in contact with the inner ring 21 of the rolling bearing 14, 14',
2, and the second ring 25 is fitted onto the rolling bearing 1.
It is press-fitted into the boss hole 19 of the receiving cable ring 15 in a state where it is in contact with the outer ring 22 of No. 4, 14'.

At least a portion of the axially outer end surface of the first ring 24 and a portion of the axially inner end surface of the second ring 25 are positioned to overlap with each other with a line gap maintained.

Therefore, even if the shaft pin 12 is removed, the first
The ring 24 is restrained by the second ring 25, and the first ring 24 does not come off as a single item.

There are no restrictions on the materials of construction of both the first ring 24 and the second ring 25, but the first ring 24 is made of steel, and the second ring 25 is press-fitted into the boss hole 19 with a tightening margin and fixed. It can be made of nylon resin or other polymeric material as appropriate.

In the embodiment shown in FIG. 2, the first ring 24 has a continuous axially inner large diameter part and an axially outer small diameter part, and is therefore an annular body with a cross section [mL-shaped]. 2 ring 2
5 has a small diameter part on the axially inner side and a large diameter part on the axially outer side, and is therefore an annular body with an inverted cross section, and the large diameter part of the first ring and the small diameter part of the second ring. The small diameter portion of the first ring and the large diameter portion of the second ring are located on the axial outside with a gap maintained in the radial direction, and the small diameter portion of the first ring and the large diameter portion of the second ring are located on the outside in the axial direction while maintaining a gap in the radial direction. Therefore, a labyrinth-like shaft seal is formed between the first ring 24 and the second ring 25.

In the cableway receiving ring having the shaft seal portion configured in this manner, even if the shaft pin 12 is removed during assembly, replacement, or other handling of the receiving cable ring, the first ring 24 and the second ring 25 will not fall off as a single item, and therefore,
The cable receiver ring 15, rolling bearings 14, 14', stop ring 20° 20', spacer ring 18, and shaft seal ring 23, 23' can all be handled as an integrated cable receiver unit, making transportation and parts management easier. This is extremely advantageous.

In addition, since no parts fall off, handling during work is extremely easy, and work can be carried out quickly and advantageously, especially in places with poor work environments, such as on lift supports and other high-altitude work in cold regions. .

Moreover, the labyrinth formed by the line gap formed by the combination of the first ring and the second ring of the shaft sealing ring can effectively prevent leakage of lubricating grease and intrusion of rainwater from the outside.

In the above embodiments, a rolling bearing was used as a bearing between the shaft pin and the receiving cable ring, but it goes without saying that any other type of bearing may be used.

[Brief explanation of drawings]

FIG. 1 is a sectional view showing a conventional cable receiving ring, and FIG. 2 is a sectional view showing a receiving cable ring according to an embodiment of this invention. 12... Axis hinge, 13, 13'... Beam, 14.
... Rolling bearing, 15 ... Cable ring, 23 ... Shaft seal ring, 24 ... First ring, 25 ... Second ring.

Claims (1)

[Scope of Claim for Utility Model Registration] comprising a first ring and a second ring press-fitted into the boss hole of the cable receiving ring;
At least a portion of the axially outer end surface of the first ring and a portion of the axially inner end surface of the second ring are arranged facing each other so as to overlap with each other with a narrow gap, and A rope receiving ring for a cableway, characterized in that the second ring is constructed with sufficient strength to hold at least the first ring. (2) A claim for registration of a utility model, characterized in that the bearing is a rolling bearing. The cableway receiving ring according to item 1. (3) The first ring and the second ring each have a large diameter part and a small diameter part, and the first ring and the second ring have a large diameter part and a small diameter part. The ring refers to the large diameter portion of the first ring and the second ring.
The small diameter part of the first ring and the large diameter part of the second ring are arranged to face each other with a gap in the radial direction, and the small diameter part of the first ring and the large diameter part of the second ring are arranged to face each other with a gap in the radial direction. A cable receiving ring for a cableway according to claim 1 or 2 of the utility model registration claim, characterized in that: (4) The first ring is made of steel, and the second ring is made of a polymeric material. Cable ring for cableway.