JPH0439212Y2 - - Google Patents

Description

[Detailed description of the invention] "Industrial application field" This invention is based on the idea that spilled grains generated during grain frying get caught between the upper pulley and the belt and are crushed by the upward wind generated inside the elevator body. The present invention relates to a grain crushing prevention device in a bucket elevator that can reliably prevent grain from breaking.

``Prior Art'' Conventionally, when grains were lifted to a predetermined location by a bucket elevator, the grains that fell out of the gap formed between both ends of the belt and the side wall of the elevator body fell onto the belt. As an intrusion prevention device for a bucket elevator that prevents objects from falling inward and being crushed between the belt and the pulley or causing a slip phenomenon, for example, the one described in Japanese Utility Model Publication No. 57-32976 is available. This is known and will be explained using FIG.

That is, an upper pulley 2 is rotatably mounted on the upper part of the bucket elevator body 1, and a lower pulley 3 is rotatably mounted on the lower part, and a large number of bucket pulleys are installed on the outer peripheral surface of the pair of upper and lower pulleys 2 and 3. A belt 4, which is provided around the lower pulley 3 at intervals, is rotatably hung around the lower pulley 3, and an upper wall 7 and left and right side walls are provided around the lower pulley 3 to cover the upper surface and left and right side surfaces of the lower pulley 3. An intrusion prevention body 6 having a U-shaped cross section and having a U-shaped cross section is provided.

``Problem to be solved by the invention'' By the way, in conventional devices of this kind, grains that have fallen from the bucket during the lifting process are prevented from entering between the lower pulley and the belt, and the grains are removed. This was to prevent the occurrence of the fracture and slip phenomenon.

However, during lifting work using a bucket lift, a fairly strong wind blows up inside the bucket lift in the same direction as the belt rotation due to the belt, bucket, etc. rotating in one direction. Some of the grains spilled from the rotating bucket are blown up by the wind toward the upper pulley, enter the inside of the belt between the ends of the belt and the side wall of the elevator body, and then flow between the upper pulley and the belt. It enters the gap, is compressed and crushed, adheres to the upper pulley, and gradually increases its diameter.
As a result, there was a problem in that vibrations occurred and the grain frying operation became impossible.

The present invention was developed in view of the problems of the conventional technology, and its purpose is to prevent spilled grains and wind blown up within the elevator main body toward the upper pulley from flowing between the upper pulley and the belt. It is an object of the present invention to provide a device for preventing grain crushing in a bucket elevator that can reliably prevent grain from entering the grain.

"Means for Solving the Problems" In order to achieve the above object, the grain crushing prevention device in the bucket elevator according to the present invention has an upper pulley 102 rotatably mounted on the upper part of the elevator main body 101. and the above upper pulley 10
2, an endless belt 103 having a large number of bucket belts 104 mounted at intervals on its outer circumferential surface is hung. A jamming prevention plate 105 is installed obliquely between the belts 103 directly below the upper pulley 102 to catch grains and wind blown up toward the upper pulley 102.

The leading end side of the jamming prevention plate 105 facing the belt 103a on the upward rotation side is directly attached to the belt 103a.
3a inner surface contact or bite prevention plate 10
5 through a scraper 107 attached to it.

On the other hand, a grain fall gap 106 is provided between the belt 103b on the downward rotation side and the jamming prevention plate 105.

"Operation" When starting the lifting work, if the upper pulley 102 is rotated in one direction, the suspended belt 10
3 is also rotated in the same direction. Therefore, the elevator body 10
Once grains are fed into the container 1, the grains are successively scooped up by a rotating bucket 104 and transported to a desired location.

By the way, as mentioned above, during the grain lifting operation, grains may fly out of the bucket 104 due to sideways swing or vibration of the belt 103, causing the belt 10
3 and the side walls 101a, 1 of the elevator main body 101
The belt 103 is formed between the belt 103 and the
The grains that fall into the inside of the belt 103 and the bucket 104 ride the upward wind generated by the rotation of the belt 103 and the bucket 104, and are carried from the lower side to the upper pulley 1.
02 and the belt 103.

However, since a jamming prevention plate 105 is provided diagonally between the belts 103 directly below the upper pulley 102 to catch spilled grains and wind blown up towards the upper pulley 102, most of the grains blown up are bitten. Even if the upper pulley 102 is allowed to fall because it is caught by the prevention plate 105,
Even if grains enter between the belt 103 and the jamming prevention plate 105, the upward wind is blocked by the jamming prevention plate 105, and the upward wind force is reduced. 10
The grains fall onto the jamming prevention plate 105 without entering between the grains 2 and the belt 103, and then the grains fall between the grains and the belt 103.
It was dropped from 06.

In addition, since the tip side of the anti-jamming plate 105 facing the belt 103a on the upward rotation side is in contact with the inner surface of the belt 103a on the upward rotation side directly or via the scraper 107, some of the grains that have fallen out are prevented from rotating upward. The belt 103a can be actively prevented from being pulled up toward the upper pulley 102 by the frictional force of contact with the belt 103a, and the deposits on the inner surface of the belt 103a can be scraped off to prevent deposits from being deposited on the back surface of the upper pulley 102. , it is possible to carry out smooth and efficient lifting operations.

"Example" Examples will be described with reference to the drawings.

In FIGS. 1 to 4, reference numeral 101 denotes an elevator main body of a bucket elevator of an appropriate type, and left and right side walls 101a, 1 at the upper part of the elevator main body 101.
01b1, driven pulley 109 at one end
A drive shaft 108 equipped with a drive shaft 108 is horizontally mounted so as to be freely rotatable. Reference numeral 102 denotes an upper pulley, and the upper pulley 102 is mounted on the drive shaft 108 while being housed within the elevator main body 101. 103 is the upper pulley 10 on the upper side.
2, the belt 10
A large number of bucket belts 104 are attached to the outer peripheral surface of 3 at appropriate intervals.

Reference numeral 105 denotes a jamming prevention plate that is tilted in one direction or in two directions (chevron-shaped), and the jamming prevention plate 1
05 is the belt 103 directly below the upper pulley 102,
Both ends are attached to the elevator main body 101 so as to be located between 103 and 103.

Then, the tip of the jamming prevention plate 105 facing the belt 103a on the upward rotation side is directly connected to the belt 103a.
The belt 10 is in contact with the inner surface of 3a or the tip side is
A scraper 107 is attached to contact the inner surface of 3a.

106 is a grain falling gap formed between the belt 103b on the downward rotation side and the jamming prevention plate 105.
It is.

Therefore, if configured as described above, in the process of lifting grains to a desired location, grains that have fallen from the rotating bucket 104 will fall onto the belt 1 due to the distance between the elevator main body 101 and the belt 103.
Even if the grains enter the inside of 03 and are then carried to the upper pulley 102 side by the wind blowing upward, the grains are caught by the jamming prevention plate 105 and are carried to the upper pulley 102 side. Not only is this prevented, but the blowing wind is also blocked and the blowing wind is reduced, so that some of the grains that have entered the belt 103 from between the upper pulley 102 and the jamming prevention plate 105 remain intact. Some of the grains that fall onto the jamming prevention plate 105 and drop from the grain falling gap 106 try to be carried to the upper pulley 102 side due to the frictional action of contact with the belt 103 that rotates upward. However, the grains are stopped and dropped by the scraper 107, and at the same time, the deposits on the inner surface of the belt 103 are scraped off, thereby preventing the grains from being deposited on the surface of the upper pulley 102.

Therefore, even when grains are transported over a long period of time, the grains enter between the upper pulley 102 and the belt 103, are crushed by compression, and are deposited on the surface of the upper pulley 102. However, by increasing the diameter, the drawback that the lifting operation cannot be performed due to vibration can be eliminated, and the lifting operation can be carried out efficiently.

As shown in FIG. 4, the scraper 107 is constructed by drilling a long hole 110 in the jamming prevention plate 105 and attaching it to the belt 103a, which rotates upward, using a tensioning tool 111 so that it can be adjusted to extend and contract. Of course, it is possible.

"Effects of the Invention" Since the present invention is configured as described above, it produces the following effects.

During the grain lifting operation, grains that have fallen from the rotating bucket 104 are thrown into the elevator main body 10.
Even if the grains enter the belt 103 from between the grains 1 and the belt 103 and are then carried by the upward wind to the upper pulley 102, the grains are caught by the jamming prevention plate 105. The upward wind that could have caused the grains to fall is also blocked, reducing the upward wind force and causing the spilled grains to fall between the upper pulley 102 and the belt 1.
03, the upper pulley 10 is compressed and crushed.
2. It is possible to prevent grains from being deposited on the surface and enlarge their diameter, thereby preventing the grain-floating operation from becoming impossible due to vibrations. At the same time, the grains that have fallen onto the jamming prevention plate 105 due to the attenuation of the blown-up wind force are quickly crushed. Not only can the grains be dropped from the falling interval 106, but also the scraper 107 can scrape off the deposits on the inner surface of the belt 103, thereby preventing deposits on the surface of the upper pulley 102 and the occurrence of slippage. play.

[Brief explanation of the drawing]

The drawings show an embodiment of the grain crushing prevention device in a bucket elevator according to the present invention, and FIG. 2 is a longitudinal sectional side view taken in the direction of arrows A-A in FIG. FIG. 4 is an enlarged partially cutaway sectional view of a movable and adjustable scraper, and FIG. 5 is a partially cutaway side view of a conventional example. 101...Elevator main body, 102...Upper pulley, 103...Belt, 104...Bucket, 1
05... Biting prevention plate, 106... Grain falling interval, 107... Scraper.

Claims (1)

[Scope of utility model registration request] In an elevator that has an upper pulley rotatably mounted on the upper part of the elevator body, which has a belt attached to its outer circumferential surface with a large number of bucket belts placed at intervals, the upper pulley is rotatably mounted on the upper part of the elevator body. An anti-entanglement plate is installed diagonally to catch spilled grains and wind, and the tip of the anti-entanglement plate facing the belt on the upward rotation side is directly in contact with the inner surface of the belt on the upward rotation side, or the tip of the anti-occlusion plate is installed diagonally. A device for preventing grain crushing in a bucket elevator, characterized in that a grain falling gap is provided between a belt on a descending rotation side and a jamming prevention plate while making contact via a scraper attached to the side.