JPH0248453Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Field of Application> The present invention is a shedding device that raises and lowers a heald frame via a guide roll using a rope or the like, such as a passive dobby machine or a passive cam. This invention relates to a lubricating device for a rolling bearing that is rotatably mounted on a support shaft.

<Prior art> As shown in Fig. 5, the opening device has a pair of machine frames 1.
Ropes 4, 4a can be moved forward and backward by an opening lever 3 of an opening device main body 2 attached to one lower side of the lower frame 5.
guided by guide rolls 8, 8a, 8b, 8c that are pivotally supported by support shafts 7, 7a, 7b, 7c fixed to respective bearings 6, 6a, 6b, 6c provided in the
A pair of oscillators are guided upward on both sides of the machine frame 1, one on the front side of the weave and the other on the back side, and whose base ends are rotatably attached to fixed shafts 9 installed as a pair on both sides of the machine frame 1. They are each connected to a moving lever 10. The lower ends of a pair of return springs 11 whose upper ends are connected to the upper part of the machine frame 1 are connected to the middle part of each of the swing levers 10, 10. It is pivotally attached to the upper part of both sides of 13.

As described above, when the opening lever 3 in FIG. 5 is rotated clockwise, the ropes 4 and 4a simultaneously move downward, and each swing lever 10 is rotated counterclockwise around its respective fixed shaft 9. move,
The heald frame 13 is lowered. After that, when the opening lever 3 is operated in reverse and the tension on the ropes 4, 4a is released, the swing levers 10, 10 are returned to their original positions by their respective return springs 11, 11, and the ropes 4, 4a are moved upward. The heald frame 13 is moved up. The above opening lever 3, each guide roll 8 to 8
c. The swing lever 10, heald frame 13, etc. are arranged in plural sets, for example, 16 sets, in the front-rear direction, and by the above-mentioned operation, a part of the heald frame 13 rises and a part descends, opening the warp threads. It will be done.

<Problems to be solved by the invention> The opening operations described above are performed with considerable frequency.
Therefore, the forward and reverse rotation of each part due to the reciprocating motion of the ropes 4, 4a, for example, the forward and reverse rotation of each guide roll 8, becomes frequent, and a considerable load is applied to the bearing part, so that the bearing part is constantly Must be kept well lubricated.

However, as described above, these guide rolls 8, 8a, etc. are arranged in multiple sets in the front-rear direction, that is, in a state in which multiple sets are arranged adjacently. Unable to supply oil to the rolling bearing. For this reason, if lubrication is required, the designated guide roll section must be disassembled and removed from the support shaft 7, and lubrication must be applied to each section, which is extremely time-consuming and can sometimes result in insufficient lubrication and damage to the bearing section. There are other problems.

<Means for Solving the Problems> The present invention eliminates the above-mentioned problems by making it possible to supply oil to the rolling bearings of the guide rolls at all times or as needed without disassembling the bearing-related parts. That is, in the guide roll rolling bearings 14 in the shedding device where a plurality of guide roll rolling bearings 14 are installed adjacent to the support shaft 7, a spacer whose outer diameter is approximately the same as the bearing outer diameter of the rolling bearings 14 is provided between each guide roll rolling bearing 14. 19 to support shaft 7
A suitable number of oil grooves 21 are fitted into the spacer 19 and have their tips facing the space 17 between the outer ring 15 and inner ring 16 of the rolling bearing 14 and their base ends facing the shaft hole 20. The support shaft 7 is provided with an oil passage 22 which communicates with the oil groove 21 and allows lubricant to be supplied to the rolling bearing 14.

<Function> When the lubricant is fed into the oil passage 22 of the support shaft 7 by a circulation device such as a pump (not shown), the lubricant enters the oil groove 21 of each spacer 19 that communicates with the oil passage 22. Thereafter, the rolling bearing 14 of each guide roll 8 is fed through the space 17 between the outer ring 15 and the inner ring 16 to the rolling element 18 such as balls or rollers, and the rolling bearing 14 is lubricated. Also, a spacer 1 interposed between each rolling bearing 14
Since the outer diameter of 9 is approximately the same as the outer diameter of the rolling bearing 14, the space 17 is shielded from the outside, and dust and the like are prevented from entering the rolling bearing 14.

<Example> Next, a description will be given based on the illustrated example. In addition,
Since each support shaft 7, 7a, 7b, 7c and each guide roll 8, 8a, 8b, 8c have the same structure,
The case of the left end guide roll portion in FIG. 5, that is, the support shaft 7 supported by the bearing 6 and the guide roll 8 will be explained with reference to FIGS. 1 to 4.

Reference numeral 14 denotes a rolling bearing for each guide roll 8, and in a space 17 formed between an outer ring 15 and an inner ring 16 of the rolling bearing 14, a predetermined number of rolling elements 18 made of balls, rollers, etc. are held. It is arranged according to the container. and each adjacent rolling bearing 14
A spacer 19 having a predetermined thickness and an outer diameter substantially the same as the outer diameter of the rolling bearing 14 is interposed between the support shaft 7 and the spacer 19 as shown in FIGS. As shown in FIG. 2, a shaft hole 20 is formed in the center so that the support shaft 7 can be fitted into the shaft hole 20. Furthermore, an appropriate number of oil grooves 21 are formed in the spacer 19, with the tip facing the space 17 formed in the rolling bearing 14 and the base end facing the bearing 20.

22 is a lubricant oil passage bored in the support shaft 7, and the oil passage 22 includes a main oil passage 22a passing through the center of the support shaft 7;
Branch oil passages 22b are branched radially from the main oil passage 22a and have open ends facing the oil grooves 21 of each spacer 19, and thereby the oil grooves 21 and 22
It is considered to be a continuous structure. The oil passage 22 is connected to a lubricant circulation device such as a pump (not shown),
23 is the support shaft 7 that passes through the open end of the branch oil passage 22b.
A guide groove 24 for lubricant formed on the outer circumferential surface is a guide groove for the rope 4 provided on the outer circumferential surface of the guide roll 8.

Next, the operation of the embodiment of the present invention having the above configuration will be explained.

The lubricant supplied to the main oil passage 22a via a supply pipe by a circulation device such as a pump (not shown) is branched into each branch oil passage 22b on the way and enters each branch oil passage 22b. Then, the spacer 19 is inserted from the opening end through the guide groove 23.
of the oil groove 21 of the rolling bearing 14,
7 to the rolling portion of the rolling element 18, and the rolling bearing 14 is lubricated. At this time, since the gap formed between the outer rings 15, 15 of the adjacent rolling bearings 14, 14 is closed by the outer side of the spacer 19, leakage of the lubricant to the outside is prevented, and This also prevents dust and the like from entering into the rolling bearing 14. It goes without saying that when the swinging lever 10 is pivotally supported on the fixed shaft 9 in FIG. 5, the adjacent rolling bearing portion can also be provided with the desired lubrication by interposing a similar spacer.

<Effects of the invention> As is clear from the above explanation, according to the invention, there are
A spacer with an oil groove is interposed, and lubricant is supplied from the oil path drilled in the support shaft to the rolling bearing part through the oil groove, so each guide roll part is disassembled as in the conventional method. It is extremely efficient as it can lubricate without any problems, and the lubricant can be easily supplied to each rolling bearing at any time, preventing malfunction of guide rolls and damage to rolling bearings due to lack of lubrication. Furthermore, since the side surfaces of the rolling bearing portion are shielded by spacers, there are effects such as preventing leakage of lubricating oil to the outside and prevention of intrusion of dust and the like from the outside.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a partially cutaway side view of the adjacent guide roll parts, FIG. 2 is a partially cutaway front view of the same, and FIG. 3 is a front view of the spacer. , FIG. 4 is a longitudinal sectional view taken along the line - in FIG. 3, and FIG. 5 is a schematic front view of the opening device including the guide roll portion. 7, 7a, 7b, 7c...Support shaft, 8, 8a, 8
b, 8c...Guide roll, 14...Rolling bearing, 1
5... Outer ring, 16... Inner ring, 17... Space, 19... Spacer, 20... Shaft hole, 21... Oil groove, 22... Oil passage.

Claims (1)

[Scope of utility model registration request] In a guide roll rolling bearing in a shedding device in which a plurality of guide roll rolling bearings are installed adjacent to a support shaft, a spacer is inserted between each guide roll rolling bearing by fitting onto the support shaft, and the tip of the rolling bearing is inserted into the spacer. An appropriate number of oil grooves are formed that face the space between the outer ring and the inner ring and have their base ends facing the shaft hole, and the oil communicates with the oil grooves so that lubricant can be supplied to the rolling bearing. A lubricating device for a rolling bearing for a guide roll in an opening device, characterized in that a passage is bored in a support shaft.