JP3138510B2 - Pipe conveyor with chain adjustment structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pipe conveyor provided with an endless chain which circulates and moves in a pipeline by connecting extruded bodies such as blades for pushing a conveyed object at predetermined intervals. The present invention relates to a pipe conveyor provided with a chain adjusting structure capable of extending and retracting an endless chain.

[0002]

2. Description of the Related Art In a pipe conveyor which incorporates a conveying means in which an extruded body such as a blade or a bucket is connected to a link chain at equal intervals, the conveying means is circulated to drive various solid substances (for example, wood or wood). Metal tip,
Earth and sand, mineral raw materials, metallic substances, paper products, plastics,
Fish and shellfish, snow, garbage, etc.) and other granular substances. FIG. 3 shows an example of a conventional link chain type pipe conveyor, which includes a straight pipe 1 and a substantially L-shaped or U-shaped pipe conveyor.
A meandering pipeline is provided in combination with the elbow pipe 2 curved in a shape. The pipeline is provided with a hopper 3 serving as a loading port for a transferred object at an appropriate position, and a discharge unit 4 for disposing the transferred object or transferring the transferred object to another pipeline is provided at a predetermined position. .
An endless chain 5 is built in the inside of this link chain type pipe conveyor, and is hung over a drive wheel 9 which is supported in a drive casing 10 provided with a discharge part 4, and is connected to the pipeline. The motor is fixed to the upper part of the drive casing, and the drive wheel 9 is rotated to circulate the endless chain (FIGS. 4 and 5). reference). Here, in the above-mentioned link chain type pipe conveyor, the direction in which the endless chain 6 is folded back by the drive wheels 9 is not particularly limited, and may be a vertical direction (illustrated example) or a horizontal direction.
Further, the pipeline may be laid out one-way without any turn. The endless chain 5 is formed by connecting a large number of egg-shaped links 6 at right angles to each other. Blades 7 having a circular outer periphery are fixed at appropriate intervals, and the conveyed objects are conveyed by the blades 7. It has become. Accordingly, the endless chain 5 circulates constantly in contact with the inner peripheral surface of the inner corner of each corner of the pipeline, and the blade 7 abuts against the inner peripheral surface and rotates while twisting the endless chain 5, When the blade crosses the corner of the line, the blade 7 turns and returns in the opposite direction due to the repulsive force of the twist of the endless chain, circulates and discharges the conveyed object while repeating this. And
In order to adjust the degree of tension of the endless chain 5, conventionally, as shown in FIGS.
The driving wheel 9 is slidably held in the direction in which the driving wheel 9 extends, and is performed by moving the driving wheel 9.
That is, the rotating shaft 9A of the driving wheel 9 is fitted into a long hole 10A for a bearing formed in the longitudinal direction of the driving casing 10, the rotating shaft 9A is moved along the long hole 10A, and the endless chain 5A is moved. The take-up of the endless chain 5 is performed by changing the hooking position on the drive wheel 9 side. However, in the above-described configuration, since the casing 10 has the elongated hole 10A and the bearing 9A of the drive wheel 9 is moved, it is necessary to perform the parallel movement accurately. With the movement of the drive wheel 9, the motor M for operating the drive wheel 9 must be removed at the same time and moved on the drive casing 10 to be fixed at a predetermined position. Wheel 9
Since it is necessary to adjust the balance between them, the operation is troublesome and complicated. Furthermore, due to the gap between the long holes 10A,
It becomes difficult to seal the wall surface of the drive casing 10. In the case of FIG. 8, the slide casing 10 "is stacked on the fixed casing 10 ', and the bearing of the drive wheel 9 and the motor M are provided on the slide casing 10" side. Requires a large number of long holes 10A, so the same problem remains.

[0003] Such a problem is not limited to the above-structured link chain type pipe conveyor, but includes a pipe conveyor, and a pipe or a chain in which extruded bodies such as blades and buckets are connected at predetermined intervals in a pipe line of the pipe. A similar problem occurs in the case of a structure in which a wire or other traction member moves, and a solution is awaited in this type of technical field.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and its main problem is to take up an endless chain or wire as a single unit without moving a drive wheel and a motor individually. It is an object of the present invention to provide a pipe conveyor provided with a chain adjusting structure that enables the above-mentioned operation and facilitates the workability.

[0005]

In order to solve the above-mentioned problems, according to the present invention, an endless chain or an endless chain which circulates and moves in a pipeline by connecting extruded bodies such as blades or buckets for pushing a conveyed object at predetermined intervals. In a pipe conveyor having a chain adjustment structure including a drive casing having a drive casing for driving an endless wire and having a motor for operating the drive wheel fixed, the drive casing has a pipeline discharge portion. The pair of length adjusting pipes on the forward path and the return path are fixed to the drive casing, and the ends of the pair of pipes extending linearly at the end of the pipeline body overlap the length adjusting pipe. The fitting pipe on the forward path and the fitting path on the return path, which are slidably fitted, are integrally provided. The length adjusting pipe and the fitting pipe are slid so as to form a double pipe. At the same time, the length adjustment pipe side and the fitting pipe side include an adjustment bolt extending in the direction in which the pipe extends, and a screw hole capable of screwing and retracting the adjustment bolt to fix the adjustment bolt. A technical means is provided in which a fixing means for adjusting the slide position of the length adjusting pipe and the fitting pipe and fixing the slide pipe by inserting the screw into the screw hole and reciprocating the screw is provided.

[0006]

The drive casing length adjusting pipe and the fitting pipe are slidably fitted so as to form a double pipe, and the adjusting bolt provided on one side is inserted into a screw hole provided on the other side. The position of the drive casing can be changed by adjusting the amount of overlap between the length adjusting pipe and the fitting pipe by screwing and screwing the adjusting bolt forward and backward. Due to the displacement of the drive casing, the drive wheels and the motor formed integrally therewith are also displaced in conjunction with each other, so that endless chains and endless wires can be easily taken up.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of a pipe conveyor having a chain adjusting structure according to the present invention will be described below with reference to the drawings. The chain adjustment structure shown in FIGS. 1 and 2 comprises a drive casing 11 having a pipeline discharge 4,
A pair of length adjusting pipes 11A and 11B fixed to the drive casing 11 and serving as a forward path and a return path, and a front end pipe 12 serving as a forward path and a return path on the pipeline body 12 side.
A and 12B are provided integrally with fitting pipes 13A and 13B for fitting the length adjusting pipes 11A and 11B.

That is, the drive casing 11 is formed in a substantially box shape having an opening at the front and at the bottom.
A drive wheel 9 that circulates and locks the shaft is rotatably supported, and a motor M that rotates the drive wheel by belt transmission or the like is fixed above the top wall.

In the rear wall of the drive casing 11, a pair of entrances H1 and H2 communicating with the inner space are opened.
A pair of length adjusting pipes 11A, 1A, 1A, 1
1B is integrally protruded rearward. The length adjusting pipes 11A and 11B are pipes having the same diameter as the pipes 12A and 12B at the end of the pipeline body 12. Further, an adjusting bolt 14 extending parallel to the length adjusting pipe is attached to the rear wall of the drive casing 11 between the pair of length adjusting pipes.

On the other hand, a pipeline main body 12 composed of a meandering pipe connected to the drive casing 11 has a fitting pipe 13A extending linearly in the extension direction at the forward end pipe 12A and the return end pipe 12B at the ends thereof. 13
The base end of B is externally fitted and fixed by welding. The fitting pipes 13A, 13B are connected to the length adjusting pipes 11A, 11B.
It consists sets to the possible diameter internally fitted slidably pipe B.

The opposed fitting pipes 13A, 13A,
3B, the connecting piece 15 is integrally fixed, and a horizontal piece 16 is bridged between the front ends. A hole is provided at a center of the horizontal piece 16 at a position where the adjustment bolt 14 can be aligned. It is formed by drilling. A nut is rotatably connected to the front and rear of the hole to form a screw hole 17. By rotating the nut forward and backward, the adjusting bolt 14 is screwed into the screw hole 17 to advance and retreat. Can be.

With the above-described structure, first, the length adjusting pipes 11A and 11B are connected to the respective fitting pipes 1A and 11B.
3A and 13B, and the adjustment bolt 14 is screwed into the screw hole 17. Then, by forward rotation of the nut of the threaded hole portion 17, the adjustment bolt 14 is threadedly Susumudo to length adjustment pipe 11A, fitting pipe 13A that 11B corresponding thereto, is polymerized portion within 13B longer So that it fits. The drive casing 11 is connected to the pipeline body 12 by moving the drive casing 11 to the pipeline body side and fitting it to a predetermined position, and the endless chain 5 is stretched over the drive wheels 9. When adjusting the degree of tension of the endless chain 5, the screw hole 1
Length adjusting pipe 11 by reversing the 7 of the nut
Since the overlapped portion between A and 11B and the fitting pipes 13A and 13B is shortened and the drive casing 11 is separated from the pipeline body 12, the endless chain can be further tightly stretched. If the nut of the screw hole 17 is rotated in the forward direction, the degree of tension of the endless chain 5 can be reduced.

In the above embodiment, the adjustment bolt is provided on the drive casing side and the screw hole is provided on the fitting pipe side. On the contrary, the adjustment bolt is provided on the fitting pipe side and the screw hole is provided on the drive casing side. It may be provided. Alternatively, the adjusting bolt may be rotatably mounted on the drive casing side, the screw hole may be fixed to the fitting pipe side, and the adjusting bolt may be rotated and screwed into the screw hole. Further, in the illustrated example, the forward and backward pipes connected to the drive casing are shown as being arranged vertically, but it is needless to say that the pipes may be arranged as left and right.

[0014]

Effects of the Invention According to the present invention, each of the drive wheels and a motor provided in the drive casing is not necessary to displace, adjusting work is extremely it is only stretchable length adjustment adjustment pipe and the fitting pipes Can be easily accomplished. Further, since the pipe expands and contracts as a double pipe structure, it is not necessary to form a connection screw hole or the like in the pipeline.
Furthermore, there is no need to provide holes in the drive casing,
There is no gap on the wall surface communicating with the inner space, and the wall surface can be kept airtight. In addition, since the expansion and contraction of the pipe is adjusted using the screw engagement, the degree of tension of the endless chain can be finely adjusted. Further, since the drive casing has a discharge portion, the position of the discharge portion can be adjusted.

[Brief description of the drawings]

FIG. 1 is a plan view showing an embodiment of a chain adjusting structure for a pipe conveyor according to the present invention.

FIG. 2 is a cross-sectional view as viewed from the side.

FIG. 3 is a perspective view showing an example of a conventional link chain type pipe conveyor.

FIG. 4 is a cross-sectional view showing an internal state of a corner portion of a conventional pipeline.

FIG. 5 is a partially cutaway perspective view showing the inside of a conventional pipeline.

FIG. 6 is a side view showing a conventional chain control structure.

FIG. 7 is a cross-sectional view showing a conventional chain control structure.

FIG. 8 is a cross-sectional view showing a different conventional chain control structure.

[Explanation of symbols]

4 discharge unit 1 straight pipe 2 elbow pipe 3 supply port 5 endless chain 7 blade 10 conventional drive casing 11 the drive casing 11A, 11B length adjusting pipe 12 pipeline body 12A, 12B tip end of the pipe 13A, 13B fitted pipe 14 Adjustment bolt 16 Horizontal piece 17 Screw hole

 ──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Hiroo Inoue 1-3-2 Kitaaoyama, Minato-ku, Tokyo New Caterpillar Mitsubishi Corporation (56) References JP-A-51-106978 (JP, A) 62-108309 (JP, U)

Claims (2)

(57) [Claims] A drive wheel for driving an endless chain or an endless wire that circulates and moves in a pipeline by connecting extruded bodies such as blades or buckets for pushing an object to be conveyed at a predetermined interval. In a pipe conveyor provided with a chain adjustment structure having a drive casing in which a motor for operating the pipe is fixed, the drive casing has a pipeline discharge portion,
The drive casing is fixed with a pair of straight length-extending pipes extending forward and backward, and the length adjusting pipe is attached to the tip of a pair of straight pipes extending linearly at the tip of the pipeline body. The forward side and return side fitting pipes that overlap and slidably fit are provided integrally, and the length adjusting pipe and the fitting pipe are slidably fitted so as to form a double pipe, to a tuned pipe side mating pipe side, the adjusting bolt extending the extending direction of the pipe, made from a threaded hole causes screwing the adjusting bolt, by inserting the adjusting bolt in the threaded hole A pipe conveyor provided with a chain adjusting structure, comprising fixing means for adjusting and fixing a slide position between the length adjusting pipe and the fitting pipe by reciprocating. 2. The fitting pipe is set to have a diameter allowing the length adjusting pipe to be fitted therein, and an adjusting bolt is protruded from the drive casing in parallel with the direction in which the length adjusting pipe extends. The pipe conveyor provided with a chain adjusting structure according to claim 1, wherein a threaded portion which is screwed with the adjusting bolt and is rotatable with the adjusting bolt is formed in the serially connected piece.