JP2547345B2 - Conveyor roller and conveyor without shaft - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a roller for a roller conveyor in which a central axis of the roller is omitted, and a roller conveyor using the roller.

(Prior Art) A conventionally known roller for a conveyor has a roller cylinder and a central axis, bearings are provided inside both ends of the roller cylinder, and the roller cylinder is axially provided on the central axis through the bearings. Further, a roller conveyor using this roller has a structure in which the central axes of a large number of rollers are provided at equal intervals between a pair of parallel frames.

(Problems to be Solved by the Invention) As described above, the conventionally known conveyor roller has a central shaft, which increases the weight of the shaft and is difficult to handle, resulting in high cost. It was
In addition, in the case of a roller conveyor using a roller with a central axis, there is a problem that the weight of the conveyor as a whole is large and it is also difficult to handle.Furthermore, since the central axis is mounted on a parallel frame, removal after assembling etc. However, it is troublesome to remove the roller for maintenance and management, and there is a problem that maintenance and management are not easy.

The present invention has been made in view of the above problems, and an object thereof is to provide a new conveyor roller that is lightweight, easy to handle, and inexpensive.

A further object of the present invention is to provide a novel roller conveyor which is lightweight and easy to handle using this new roller, and which is easy to assemble and disassemble and easy to maintain and manage.

Another object of the present invention is to provide a novel roller conveyor which can be temperature-controlled so that it can be used in connection with a freezer or a blast furnace.

(Means for Solving the Problems) In order to achieve the above object, the roller for a conveyor of the present invention is a roller for a roller conveyor that is installed between a pair of frames, and the shape of one end of the roller is a cylindrical roller body. From the taper part that gradually becomes smaller in diameter, and a small-diameter cylinder part that follows this taper part, a pair of sprockets are fixed to the small-diameter cylinder part that follows the taper part from the roller cylinder, and outside the roller end part. A bearing is attached, and the roller end is supported by the frame by dropping the bearing into a U-shaped bearing receiving member fixed to the inside of the frame and having an open upper side.

It is desirable that the other end of the roller is also formed with a taper portion gradually decreasing in diameter from the roller cylindrical body and a small-diameter cylinder portion following the taper portion.

Further, the other end of the roller may have a small diameter portion welded and fixed to the roller cylinder.

Next, in the roller conveyor of the present invention, a pair of upper portions facing each other are opened U inside the pair of frames.
A large number of V-shaped bearing receiving members are fixed, and the shape of one end of each roller is formed into a taper part that gradually decreases in diameter from the roller cylinder and a small-diameter cylinder part following this taper part, and gradually from each roller cylinder. A pair of sprockets are fixed to the small-diameter cylindrical part that follows the taper part that has a small diameter, a bearing is attached to the outside of the end of each roller, and the bearings at the end of each roller are dropped into the bearing receiving member. The roller is installed between the frames, and the chain is hung between the sprockets of the rollers adjacent to each other.

Further, it is also a feature of the roller conveyor of the present invention that a through hole is formed at each bearing receiving member fixing position of the pair of frames and the through hole and the roller cylindrical body are communicated with each other.

(Operation) Since the central axis is omitted in the conveyor roller of the present invention configured as described above, it is lightweight and easy to handle.

Further, the roller conveyor of the present invention is also lightweight as the whole conveyor because the central axis of each roller is omitted, and since the roller is only dropped into the bearing receiving member of the frame, its attachment and detachment. Is easy, and maintenance and management are easy.

Embodiment An embodiment of the present invention will be described below with reference to the drawings.

In the figure, 1 is a roller cylinder. A taper portion 2 having a gradually decreasing diameter in the end direction is formed at one end of the roller cylindrical body 1, and a small diameter cylinder portion 3 following the taper portion 2 is provided.
In the embodiment shown in FIG. 1, the other end of the roller cylinder is also
Similarly, it has a tapered portion 2 and a small-diameter cylindrical portion 3 that follows the tapered portion 2. The tapered portion 2 and the small-diameter cylindrical portion 3 are formed by drawing the end portion of the original body of the right circular cylinder having the diameter of the roller cylindrical body 1.

In the embodiment shown in FIG. 2, one end of the roller cylindrical body 1 has a shape having a tapered portion 2 and a small diameter tubular portion 3 as in the embodiment shown in FIG. 1, but the other end has a tapered portion. The small-diameter cylindrical portion 4 having a step is directly welded and fixed to the other end of the large-diameter roller cylindrical body 1 without the provision of.

Bearings 5 are attached to the ends of the small-diameter cylindrical portions 3 and 4 at both ends of the roller. In the illustrated embodiment, the pair of sprockets 6 and 6 are fixed to the small-diameter cylindrical portion 3 at one end of the roller so that the roller can be used for the drive roller conveyor. It may be a roller. The pair of sprockets 6, 6 may be integrally formed as shown in FIG. 1 or may be separately formed as shown in FIG.

In the figure, a pair of frames 7 and 7 are parallel to each other, and the frame may have a U-shaped cross section as shown in FIG. 1 or a cross sectional shape as shown in FIG. These frames are mounted and fixed on the legs 8 and 8 as shown in the drawing.

Further, in the figures, 9 and 9 are bearing receiving members fixed to the inside of the frames 7 and 7 so as to face each other, and have a U-shape as shown in FIGS. 3 and 4. This bearing receiving member is U
It is formed by pressing the inside of a steel plate having a V shape. That is, the standing wall 10 is formed by pressing the middle portion of the U-shaped steel plate, and the inner wall of the standing wall 10 is formed as the stop edge 11. And this bearing receiving member 9
Bolt insertion holes 12 are formed in three places on the substrate part of
A nut stopper projection 13 is formed near the bolt insertion hole. In the illustrated embodiment, this bearing receiving member 9
Is fixed inside the frames 7 and 7 by bolts and nuts 14, but this fixing may be welding fixing. The rollers are mounted between the frames 7 and 7 by dropping the bearings 5 and 5 attached to both ends of the rollers into the bearing receiving members 9 and 9 which are fixed inside the frames 7 and 7 and which face each other.

Further, in the figure, 15 and 15 are through holes formed at positions where the bearing receiving members 9 and 9 of the pair of frames 7 and 7 are fixed.The through holes allow communication with the inside of the roller cylinder, and through the through holes, into the roller cylinder. It is designed to allow cold or hot air to pass through.

In addition, in the figure, 16 and 16 are spanning chains between the sprockets 6 and 6 of the adjacent rollers, 17 is a chain cover fixed on the frame 7, and 18 is a through bolt 1 between the frames 7 and 7.
It is a stay fixed by 9.

FIG. 5 shows the roller conveyor of the present invention. As shown, a large number of rollers are provided in parallel between the pair of frames 7,7.
Are all rollers without the shaft described in detail in FIG. 1 or FIG. Chains 16, 16 are stretched between adjacent rollers 1, 1 to form a chain drive roller conveyor.

The roller conveyor roller of the present invention having the above-described structure is mounted with a bearing 5 at the roller end, and the bearing 5 is dropped into a bearing receiving member 9 fixed to the inside of the frame 7 and opened upward to be supported. Therefore, the bearing receiving member 9 rotates lightly.

Therefore, fix the sprockets 6, 6 to this roller,
If the chains 16 and 16 are stretched between adjacent rollers in an endless state and a drive source (not shown) is provided like a known chain drive roller conveyor, each roller is driven and rotated. If the sprockets 6 are not provided, it can be used as a free roller conveyor.

(Advantages of the Invention) As described above, the roller and roller conveyor of the present invention do not have a central axis, so that they are extremely lightweight and have a great effect that they are easier to handle than a roller having a central axis. Therefore, the cost can be reduced because there is no central axis. Further, since the roller and the conveyor of the present invention have a structure in which the bearing at the roller end is dropped into the bearing receiving member fixedly installed inside the frame, it is extremely easy to install and remove the roller, and only the on-site assembly of the conveyor is easy. In addition, it has an effect that maintenance and management after the installation of the conveyor is easy. In particular, the chain between adjacent rollers can be installed in the field by mounting the chain in the endless state.Therefore, like a conventionally known conveyor, a chain that is not endless is hung between sprockets and both ends are pinned. The assembly work is significantly easier than that of connecting and assembling.

Further, in the conveyor of the present invention, the shaft of the roller is omitted, and the through hole is formed in the frame to communicate with the inside of the roller, so that cool air or hot air can be passed through the roller and the temperature of the roller is controlled. It also has the advantage that it can be a conveyor in a freezer or an effective conveyor in connection with a blast furnace.

[Brief description of drawings]

FIG. 1 is a sectional view showing a preferred embodiment of the conveyor roller of the present invention, FIG. 2 is a sectional view of another embodiment, FIG. 3 is a front view of a bearing holding member, and FIG. IV-
FIG. 5 is a sectional view of the bearing holding member taken along line IV, and FIG. 5 is a plan view of an embodiment of the conveyor of the present invention. 1 …… Roller cylinder, 2 …… Tapered part 3,4 …… Small diameter cylinder part, 5 …… Bearing 6 …… Sprocket, 7 …… Frame 9 …… Bearing receiving member 12 …… Bolt insertion hole, 15 …… Through hole 16 …… Chain

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-56-23324 (JP, A) JP-A-51-125615 (JP, A) Actually open 61-132305 (JP, U) Actual-open Sho-51- 138880 (JP, U) JP 58-5963 (JP, B2)

Claims (5)

(57) [Claims] 1. A roller for a roller conveyor that is erected between a pair of frames, the shape of one end of which is formed into a taper portion that gradually decreases in diameter from a roller cylinder and a small-diameter tubular portion that follows the taper portion. Then, a pair of sprockets are fixed to the small-diameter cylinder part following the taper part from the roller cylinder body, a bearing is attached to the outside of the roller end part, and a U-shaped bearing fixed to the inside of the frame and the upper part of which is open. A conveyor roller without an axis, characterized in that the roller end is supported by a frame by dropping the bearing into a receiving member. 2. The roller conveyor without a shaft according to claim 1, wherein the other end of the roller is also formed with a taper portion gradually decreasing in diameter from the roller cylindrical body and a small-diameter cylinder portion following the taper portion. Roller. 3. A roller conveyor roller without a shaft according to claim 1, wherein the other end of the roller has a small diameter cylindrical portion welded and fixed to a roller cylinder. 4. A plurality of U-shaped bearing receiving members, each of which is open at the upper side, are fixedly provided inside the pair of frames, and the shape of one end of each roller is gradually reduced from the roller cylindrical body. Is formed on the taper part and the small-diameter cylinder part that follows this taper part, and a pair of sprockets are fixed to the small-diameter cylinder part that follows the taper part that gradually decreases in diameter from each roller cylinder, and on the outside of each roller end. It is characterized in that a large number of rollers are installed between frames by mounting bearings and dropping the bearings at the end of each roller into the bearing receiving member, and chains are hung between the sprockets of adjacent rollers. A roller conveyor that omits the axis. 5. A shaft according to claim 4, wherein a through hole is formed at each bearing receiving member fixing position of the pair of frames, and the through hole and the roller cylindrical body are communicated with each other. Roller conveyor.