JPH027842B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a bucket grain lifting machine that scoops up grains in a bucket and lifts and transfers the grains.

(Prior art) As is well known, an example of threshing, hulling, grain sorting, grain polishing, etc. is shown in Figures 1 and 2. Bucket grain lifting machines are widely used, in which lower pulleys are rotatably supported at the bottom, and an endless belt with a bucket attached is suspended between the two pulleys.

There are V-shaped belts and flat belts that have been used as endless belts as the main components in this type of bucket grain lifting machine.

By the way, when using a V-shaped belt, it is extremely advantageous from the viewpoint of power transmission, and the crushing and granulation rate of grains is smaller than that of a flat belt, but it is economically expensive and disadvantageous. However, there was a problem in that the method of attaching the bucket required some ingenuity.

That is, when the width of the grain lifting cylinder is narrow, the attachment edges of the bucket can be made to protrude from both sides of the outer peripheral surface of one V-shaped belt, and the bucket can be attached to the attachment edges that protrude on both sides. In addition, when the width of the grain lifting barrel is wide, two V-shaped belts are used, and bulges for attaching buckets are provided at approximately equal intervals on the back side of the two V-shaped belts, that is, on the outer circumference side. A method was devised that took advantage of this to attach a bucket, but when using the former method, the uneven loads that tend to be applied to each part of the bucket during grain frying were The V-shaped belt is pulled from the left and right directions with respect to the axis of the belt from the point where it is applied to one V-shaped belt through the attachment edge, and the V-shaped belt is constantly subjected to large and small vibrations in the left and right directions. A similar lateral vibration occurs, not only in the V-shaped belt itself, but also in the V-shaped belt on which this V-shaped belt is tensioned and suspended.
It is unavoidable that it will have an adverse effect on the fixed rotating shaft of the type pulley and its bearings, and when using the latter method, the bucket belt cannot be directly applied to the outer circumferential surface of the two V-shaped belts arranged in parallel. Since it is directly attached, the uneven load that tends to be applied to each part of the bucket as described above is distributed between the two V-shaped belts. Lateral vibration similar to that of the V-shaped belt occurred, and the same negative effects could not be avoided.

What's worse, when this V-shaped belt is used, it gets caught in the narrow gap between the V-shaped belt and the bottom of the V-shaped groove of the V-shaped pulley that makes this V-shaped belt run, and there is no way to escape. Not only are the grains that have lost their properties crushed and reduced to fine grains, but the V-shaped belt is lifted up, which not only reduces power transmission by half, but also contributes to increased lateral vibration of the V-shaped belt.

Therefore, as this type of endless belt, a wide flat belt is used, and a rotating wide flat belt pulley and a wide flat belt that is shifted as the flat belt pulley rotates. Unlike a V-shaped belt, there is a loss in which the grains are crushed and refined by being caught between the belt and the grain, and due to this entrainment,
Although the tension of the flat belt can be increased, the flat belt may be unbalanced due to the uneven winding amount in each part, and the flat belt may cause small lateral vibrations similar to V-shaped belts caused by this unbalance. In order to avoid the disadvantage of elongation of grains, which makes them unusable, some devices have been devised, such as having numerous holes in the lower pulley to allow the grains to pass through.
Although it has come into use, it is impossible to completely eliminate the damage caused by grain entanglement, and it was considered a force majeure event.

(Problems to be Solved by the Invention) The present invention solves the problems that arise when using a V-shaped belt, which has many advantages in terms of power transmission. , it also eliminates the causes of grain crushing and granulation and increase in lateral vibration, and the force that induces lateral vibration can be used to increase the running force of the V-shaped belt, and the crushing and granulation rate of grains is low. It is an object of the present invention to provide a bucket grain lifting machine that can maintain highly efficient power transmission force over a long period of time, which is a feature when using a V-shaped belt.

(Means for Solving the Problems) In order to achieve the above-mentioned object, the present invention provides that the upper rotating shaft of the grain lifting cylinder has separate upper parts for V-shaped belts having the same shape and the same size at intervals. In addition to fixing the V-shaped pulley, a V-shaped pulley of the same shape and size is formed on the rim section of the lower rotating shaft... From the bottom of the V-shaped groove for the belt, each connection between the rim section and each arm is attached. A lower V-shaped pulley for a V-shaped belt, in which a through hole for grain escape is formed between the installation parts, is fixed to each of the upper V-shaped pulleys at a distance so as to form a separate pair. , each outer circumferential surface of each V-shaped belt separately stretched and suspended between the upper and lower V-shaped pulleys forming a pair of upper and lower parts has a width wider than the width of the outer circumferential surface of each V-shaped belt. Attach each separate flat belt-shaped bucket attachment band to each V
Along the longitudinal direction of the mold belt, adjacent one side edge of each bucket attachment band is fixed integrally so that they do not overlap, and there is a space between each bucket attachment band in the longitudinal direction. This bucketed grain lifting machine is characterized in that the bucketed grains are stretched across the bucketed grains, and are fixed to the mutually adjacent one side edge of each bucketed attachment band.

(Function) As described above, the bucket grain lifting machine according to the present invention has the following features:
It uses a V-shaped belt, which is extremely advantageous in terms of power transmission and has a low grain crushing rate, and is used in the same way as a conventional bucketed grain lifting machine, except that each bucket is attached to both bucket belts. Since it is fixed to one side edge portion of the bucket that is close to each other, that is, the bucket attachment band that is between both V-shaped belts, when scooping grains, etc. If unequal loads are applied to different parts of the bucket due to an uneven amount of grain intervening in the bucket, this load is transferred to both V-shaped belts via the bucket attachment belt. Since the V-shaped belts are each pulled in the direction of the other V-shaped belt with a force corresponding to the load, the V-shaped belt to which the larger force is applied is applied to the V-shaped pulley for the V-shaped belt. Not only do they make strong contact, increasing the power transmission force and preventing slipping, but these uneven loads also cause both V-shaped belts to approach each other. Since no force is applied in any direction other than the direction in which the It will no longer occur.

In addition, a through hole for grain escape is formed at the bottom of the V-shaped groove for the V-shaped belt of the lower V-shaped pulley.
The grains caught in the narrow gap between the groove bottom of the V-shaped groove for the type belt and the V-shaped belt can escape very easily through the through holes for grain escape. The grains, which are caught in this narrow gap and have no place to escape, cause the V-shaped belt to float from the V-shaped groove for the V-shaped belt in the lower V-shaped pulley, thereby transmitting power to the V-shaped belt. Not only does this drastically reduce the number of belts, but it also becomes one of the causes of lateral vibration in the V-shaped belt, which eliminates the significance of using the V-shaped belt.

Naturally, this also led to a further reduction in the crushing and pulverization rate of the grains.

Furthermore, changes in the required capacity of the bucket can be easily accommodated by simply changing the spacing between the V-shaped pulleys for both the upper and lower V-shaped belts.

(Example) Hereinafter, an example of the present invention will be described in detail with reference to the drawings from FIG. 3 onwards, which illustrate an example of a bucket grain lifting machine according to the present invention.

In the figure, reference numeral 1 is a grain lifting cylinder with a grain delivery section 2 and a drive mechanism (not shown) (see Figure 1) in the upper part, and a grain delivery part 3 in the lower part. The drive shaft 4, which is rotatably supported by an upper bearing part (not shown) installed in the drive shaft 4, has upper V-shaped pulleys 10 for each V-shaped belt, which will be described later, having the same shape and the same size at intervals. 10' is also rotatably supported by a lower bearing part (not shown) installed at the lower part of the passive shaft 5.
In the V-shaped groove 23 for the type belt, a grain escape having a long length and a width approximately equal to the width of the groove bottom 24 is provided at the groove bottom 24 between the rim portion 22 and the continuous portion of each arm 21, 21, . Lower V-shaped pulleys 20 and 20' with through holes 25 formed therein are fixed, respectively, and the upper V-shaped pulley 10 and the lower V-shaped pulley 20, and the upper V-shaped pulley 10' and the lower V-shaped pulley 2
0' are arranged in pairs, respectively.

The upper and lower V-shaped pulleys 10 and 20 are paired separately, and the V-shaped belts 30 and 3 are tensioned and suspended between the two V-shaped pulleys 10' and 20'.
The belts 30 and 3 are attached to the outer peripheral surface of the belt 0', respectively.
Separate flat belt-shaped bucket attachment bands 31, 31' having a width wider than the width of the outer peripheral surface of V-shaped belts 30, 30' extend along the longitudinal direction of the V-shaped belts 30, 30', and each separate bucket attachment band 31, 31 ' are integrally fixed so that adjacent one side edges of the bucket belts 31, 31' do not overlap, and there is a gap in the longitudinal direction between the bucket belt attachment bands 31, 31'. A large number of bucket belts 32 are stretched across the bucket belts 32, and fixed to the mutually adjacent one side edges of both bucket belt attachment bands 31, 31' using bucket belt mounting members such as bucket belt mounting bolts and nuts 33, 33'. There is.

Note that the V-shaped belts 30, 30' and the bucket attachment bands 31, 31' may be integrally molded.

The bucket grain lifting machine according to the present invention has the above-described configuration and is used in the same manner as the conventional bucket grain lifting machine. Type belt 30,3
0', both bucket attachment bands 31,
31', so that when scooping grains, the grains interposed between the cylinder wall of the grain lifting cylinder 1 and the bucket 32 are fixed. If an uneven load is applied to each part of the bucket 32 due to an uneven amount, this load will be applied to the bucket attachment bands 31, 3.
1' to both V-shaped belts 30, 30' with a force corresponding to the load.
0' in the direction of the other V-shaped belt, the V-shaped belt to which a large force is applied comes into stronger contact with the V-shaped pulley for that V-shaped belt, increasing the power transmission force. Of course, these uneven loads, in other words, non-uniform loads,
Since no force is applied to both V-shaped belts 30, 30' in any direction other than the direction in which both V-shaped belts 30, 30' approach each other, both V-shaped belts 30, 30'
0' is orthogonal to the axis in the longitudinal direction, and normally no lateral vibration beyond the axis occurs during running.

In addition to this, the lower V-shaped pulleys 20, 20'
A through hole 25 for grain escape is formed in the V-shaped groove 23 for the V-shaped belt, so the narrow gap between the lower V-shaped pulleys 20, 20' and the V-shaped belts 30, 30' The grains caught in the void can easily escape through the grain escape holes 25, so unlike the conventional grains of this kind, the grains caught in the narrow void and with no escape can be easily removed. Therefore, the V-shaped belts 30, 30' are floated from the respective V-shaped grooves 23 of the lower V-shaped pulleys 20, 20',
Not only does this drastically reduce the power transmission force to the V-shaped belt, but it also causes lateral vibration in the V-shaped belts 30, 30', and the purpose of using the V-shaped belt is lost. I closed it from nothing.

Naturally, this resulted in a further reduction in the crushing and pulverization rate of the grains.

Furthermore, when changing the required capacity of the bucket belt 32, it is very easy to change the interval between the upper and lower V-shaped belt pulleys 10, 10', 20, 20' for the V-shaped belt. Because it can be adapted, it avoids the trouble of having to prepare several types of pulleys for flat belts and flat belts, as in conventional bucket grain lifting machines that use flat belts. It became possible to eliminate all of them.

(Effects of the Invention) As is clear from the above description, according to the present invention, when using a V-shaped belt which is advantageous in terms of power transmission and has many advantages, the V-shaped belt during normal running of the V-shaped belt is In addition to the main factor that induces lateral vibration in the left-right direction beyond the axis of the belt, it also eliminates the cause of grain crushing and grain refinement and increase in lateral vibration, and the V-shaped force that induces this lateral vibration is It can be used to increase the running force of the belt, and has a low grain crushing and granulation rate, allowing the maintenance of highly efficient power transmission power over a long period of time, which is the most important feature when using a V-shaped belt. It has now become possible to provide a bucketed grain lifting machine that has excellent effects such as grain harvesting.

[Brief explanation of drawings]

FIG. 1 is a schematic side view for explaining a conventional general bucket grain lifting machine, FIG. 2 is a partial sectional view thereof, and FIGS. 3 to 6 are a schematic side view of a conventional bucket grain lifting machine. Fig. 3 is a diagram for explaining the internal structure of the embodiment, Fig. 4 is a front view showing a part of the lower V-shaped pulley for the V-shaped belt in longitudinal section, and Fig. 5 is a diagram illustrating its internal structure. FIG. 6 is a perspective view illustrating the structure of the V-shaped belt portion, and is a view illustrating a main part of the V-shaped belt section taken along the line X--X in FIG. 3. 1; Grain lifting cylinder; 2; Grain delivery section; 3; Grain feeding section; 4; Drive shaft; 5; Passive shaft; 10, 10'; Upper V-shaped pulley; 20, 20'; Lower V-shaped pulley , 21; Arm, 22; Rim portion, 23; V-shaped groove, 24; Groove bottom, 25; Through hole for grain escape, 3
0, 30'; V-shaped belt, 31; Bucket mounting band, 32; Bucket, 33, 33'; Bucket mounting bolts and nuts.

Claims (1)

[Claims] 1. The upper rotating shaft of the grain lifting cylinder is fixed with different upper V-shaped pulleys for V-shaped belts of the same shape and size at intervals, and the lower rotating shaft is equipped with upper V-shaped pulleys of the same shape and size, A lower part V for a V-shaped belt in which a through hole for grain escape is formed between each connected portion of the rim part and each arm from the bottom of the V-shaped groove for the V-shaped belt formed in the rim part. The type pulleys are secured to each of the upper V-type pulleys at intervals so as to form separate pairs, and each of the upper and lower V-type pulleys forming a pair of upper and lower parts is separately tensioned and suspended. On each outer circumferential surface of each V-shaped belt, separate flat belt-shaped bucket attachment bands with a width wider than the outer circumferential surface of each V-shaped belt are attached along the longitudinal direction of each V-shaped belt, and each Adjacent edges of the bucket mounting strips are fixed together so that they do not overlap, and between each bucket mounting strip,
A bucketed grain lifting machine, characterized in that the buckets are stretched across the buckets at intervals in the longitudinal direction of each of the buckets' attachment bands, and are fixed to the adjacent one side edges of each of the buckets' attachment bands.