JPH078687B2 - Bucket type elevator - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of use] The present invention relates to an improvement of a bucket elevator for lifting granular materials such as rice grains.

[Prior art and its problems]

The most common bucket type elevator for lifting granular materials is one in which a large number of buckets are attached to an endless belt at predetermined intervals.

As shown in FIG. 4, the centrifugal force generated by the bucket 26 moving in an arc shape at the upper inner pulley 27 as shown in FIG. Using the, the object to be conveyed can be thrown away to the wall surface of the downflow gutter 28 diagonally below and forward.

As a result, unless the speed of the belt 29 is increased to a certain degree, the centrifugal force is reduced and the transported object is dropped downward in the casing, which causes noise and damages the surface of the transported object, reducing the commercial value. There was a problem.

In a so-called induction discharge type bucket elevator as disclosed in Japanese Utility Model Laid-Open No. 62-53218 (see FIG. 3), when the bucket 31 passes through the upper pulley 34, rice grains in the bucket 31 Is guided and discharged onto the inclined chute plate 33 along the bottom rear surface 32 of the bucket 31 with the front adjacent flange.

However, since the bucket 31 is not attached to the connecting portion 30 of the belt 35, the guided discharge is not performed when the connecting portion 30 passes through the upper pulley 34, and the rice grains return to the bottom of the bucket elevator to reduce the efficiency of transportation. At the same time, rice grains and the like were caught between the belt 35 and the lower inner wheel, and crushed grains were generated, degrading the quality of many granular materials.

An object of the present invention is to provide a bucket type elevator that can smoothly guide and discharge an object to be transferred to a discharge port without dropping the transferred object to the bottom.

[Means for solving problems]

According to the present invention for solving the above-mentioned problem, an upper inner wheel is provided in a casing that is provided upright with a downflow gutter provided with a supply port for a conveyed object at a lower portion and an ejection port for the conveyed object at an upper portion. A bucket type in which a flat belt with a large number of buckets is tightly mounted between the upper and lower inner-conditioning wheels so that the object to be conveyed is received by the back wall of the bucket and guided to the downdraft In the elevator, a technical means was taken in which a flanged cover having a slope substantially the same as the back wall of the bucket was attached to the connecting portion of the flat belt.

[Action]

The transported object input from the supply port is scooped up by the bucket and moves upward, and when the bucket rotates and tilts along the upper inner vehicle as it approaches the discharge position at the upper end, the transported object in the bucket moves to the front. Slides down the back wall of the bucket and is guided to the downflow gutter, and even at the flat belt connection part, the transported object slides down the slope of the cover and is guided to the discharge port without falling to the bottom inside the casing. It

〔Example〕

A preferred embodiment of the present invention will be described below with reference to the drawings.

1 and 2, the bucket elevator 1
An upper inner wheel 5 axially mounted on an upper shaft 3 rotatably laterally mounted on an upper portion of a casing 2 forming a casing, and a lower inner wheel 6 axially mounted on a lower shaft 4 horizontally rotatably mounted on a lower portion. Each is provided. A large number of buckets 8 are tightly mounted on a flat belt 7 as an endless belt that is hung between the upper inner pulley 5 and the lower inner pulley 6, and a cover 9 is attached to the flat belt 7 connecting portion 10. ing.

The cover 9 is a slope that is almost the same as the back wall 11 of the bucket 8.
It consists of 12 and is fastened to the flat belt 7 connecting part 10 with bolts and nuts. In other words, the rice grains or the like discharged from the next adjacent bucket 8 are received by the slope 12 and flown without being pumped, and guided into the downflow gutter 18.

Moreover, flanges 13 are provided at both ends of the slope 12 to prevent rice grains and the like from falling to the bottom of the casing 2.

14 is an electric motor for driving, the electric motor 14 is an electric motor with an electromagnetic brake, and the motor pulley of the electric motor 14
The V and the outer pulley 16 that is attached to one end of the upper shaft 3 are a V belt.
Connected by 17. Reference numeral 18 is a downflow gutter provided at a position where it receives rice grains discharged from the bucket 8 and the like, and 19 is a discharge port formed at the lower end of the downflow gutter 18.

Reference numeral 20 is a supply gutter for guiding rice grains and the like to a supply port 21 provided in the lower portion of the casing 2, and an upper end of the supply gutter 20 is an input port 22 connected to an end part of a supply chute pipe or the like.

The rear stroke abnormality detection device 23 mounted on the wall surface of the casing 2 near the discharge port 19 has a discharge chute pipe 24 when an abnormality such as a failure occurs in the equipment in the rear stroke of the bucket type elevator 1.
When the rice grains are clogged up and the rice grains and the like are overcrowded to the vicinity of the discharge port 19, the electric motor 14 is stopped and at the same time, the supply stopping device 25 blocks the flow path to the supply port 21. As the post-stroke abnormality detection device 23, a vibration type level sensor, a capacitance type level sensor, an optical sensor, or a pressure switch that is turned on / off by the pressure of rice grains or the like is used.

Next, the operation of the above embodiment will be described.

The electric motor 14 is started, and rice grains and the like flow into the bottom of the casing 2 from the supply port 21 through the supply gutter 20 and are scooped by the bucket 8 mounted on the flat belt 7 which rotates between the upper and lower internal control wheels 5 and 6 at low speed. It is taken and sent.

The bucket 8 containing rice grains and the like rises to the upper end of the casing 2 and moves in the direction of the arrow along the circumference of the upper inner pulley 5. At that time, the bucket 8 adjacent to the rear of the connecting portion 10 of the flat belt 7
Rice grains and the like inside flow down on the slope 12 of the cover 9 provided on the connecting portion 10 and are guided and discharged to the downflow gutter 18.

In addition, since the flanges 13 are provided at both ends of the slope 12 so that the rice grains on the slope 12 of the cover 9 do not drop from the side of the slope 12, the rice grains fall below the casing 2 and the belt 7 and the lower internal conditioning Rice grains and the like will not be caught between 6 and 6 and crushed grains will not be generated.

〔The invention's effect〕

As described above, according to the present invention, by providing a cover on the connecting portion of the flat belt, when the bucket next to the rear portion of the connecting portion moves in an arc shape along the upper inner vehicle, it is possible to convey the material inside the bucket. Since the item slides down the slope of the cover and directly falls into the downflow gutter, the transported item returns to the bottom of the casing, and is caught between the belt and the lower inner wheel to generate crushed particles.
Alternatively, centrifugal force does not forcefully collide with the side wall of the downflow gutter to damage the transported object.

[Brief description of drawings]

FIG. 1 is a front view of an embodiment of the present invention, FIG. 2 is a partially enlarged side view showing the present invention, and FIGS. 3 and 4 are side views of a conventional example. 1 ... Bucket type elevator, 2 ... Casing, 3
…… Upper axis, 4 …… Lower axis, 5 …… Upper inner wheel, 6 ……
Lower inner wheel, 7 …… flat belt, 8 …… bucket, 9 ……
Cover, 10 …… Connecting part, 11 …… Rear wall, 12 …… Slope, 13
...... Flange, 14 ...... motor, 15 …… motor pulley, 16 …… external adjustment, 17 …… V belt, 18 …… flow gutter,
19 ... Discharge port, 20 ... Supply gutter, 21 ... Supply port, 22 ... Injection port, 23 ... Post-stroke abnormality detection device, 24 ... Discharge chute pipe, 25 ... Supply stop device, 26 ... ... bucket, 27 ...
… Inside upper train, 28 …… Downstream gutter, 29 …… Belt, 30 …… Coupling, 31 …… Bucket, 32 …… Bottom back, 33 …… Inclined chute plate, 34 …… Upper pulley, 35 …… belt.

Claims (2)

[Claims] 1. An upper inner sheave and a lower inner sheave are provided in a casing that is provided upright with a downflow gutter provided with a feed port for the transported object at the lower portion and a discharge port for the transported object at the upper portion. A bucket type elevator in which a flat belt having a large number of buckets tightly mounted between the upper and lower inner condition wheels is provided between the flat belt so that the object to be conveyed is received by the back wall of the bucket and guided to the downflow gutter. A bucket type elevator characterized in that a cover having a slope that is substantially the same as the back wall of the bucket is attached to the connecting portion of the bucket type elevator. 2. The bucket elevator according to claim 1, wherein the cover is provided with flanges at both ends of the slope.