JPH0231869A - Vertical type grain sorting machine - Google Patents

Abstract

PURPOSE:To facilitate attachment and detachment of a sorting network and a grain elevating spiral body and to reduce load of a two-power shaft geared motor and to secure safety of an operater by inserting the leading power shaft of the above motor into a hole bored to the bottom of the grain elevating spiral body and rotating this grain elevating spiral body. CONSTITUTION:When a grain elevating spiral body 31 is driven, the leading power shaft 70 of a two-power shaft geared motor 34 is inserted into a hole bored to the bottom of the spiral body 31. On the other hand, a detachable supporting shaft 30 is supported to the upper surface of the spiral body 31 and fitted to a prismatic stopping part 21 of the central part of the supporting shaft 30 to pivot a cylindrical sorting network 32. The tip of the supporting shaft 30 is pivoted on the bearing 20 of a canopy fixed to the resin cover 18a of a shell body and thereby the end of the supporting shaft 30 is not exposed to the outside of the shell body. In such a way, a lengthened driving shaft is eliminated and therefore even when the sorting conditions are made different, the lengthened driving shaft is made nonobstructive and thereby attachment and detachment of the spiral body 31 and the sorting network 32 are easily performed. Since the tip of the supporting shaft 30 is pivoted on the bearing 20 of the canopy, stability is enhanced and rotating torque is reduced and grain elevating capacity is improved.

Description

DETAILED DESCRIPTION OF THE INVENTION "Field of Industrial Application" The present invention relates to a vertical grain sorting machine that is provided with a shell spiral body and a sorting net body in an outer shell body to sort grains.

"Prior art" As a conventional technology, when rotating the cylindrical sorting net and the grain lifting spiral in a vertical grain sorter, the drive shaft device of the grain lifting spiral and the rotating shaft device of the cylindrical sorting net are Generally, the bearings are rotated separately from the output shaft of the gearbox, and their bearing devices are complicated.

Therefore, it is necessary to simplify the rotation transmission mechanism of the cylindrical sorting net and the grain lifting spiral, and in the conventional rotation transmission mechanism, it is necessary to rotate the cylindrical sorting net and the grain lifting spiral. In this case, only the grain-lifting spiral is rotated by the output shaft of a gear motor, while the cylindrical sorting net is connected to one cylindrical sorting device by passing an extended drive shaft through the inside of the grain-lifting spiral to rotate the cylindrical sorting net. The fitting part of the net with the metal serves as a driving part to rotate it.

However, in such conventional bearing devices, when attaching and detaching the grain lifting spiral and the cylindrical sorting net, the extended drive shaft for transmitting rotation of the cylindrical sorting net that penetrates inside the grain lifting spiral gets in the way. Become.

The problem was that it could not be easily attached and detached.

In addition, since the driving part of the cylindrical sorting net is located at the upper part of the shell, the rotational torque of the cylindrical sorting net is large. However, there were safety issues such as the shaft end being exposed outside the shell.

6rf4 and 7 show conventional techniques for bearing the rotation of such grain lifting spirals and cylindrical sorting nets, which have already been disclosed in Japanese Utility Model Publication No. 63-14935 and Japanese Patent Application Laid-open No. 1983-14935.
It is disclosed in Japanese Patent No. 8-146475 and the like.

A gear box 34 is installed to change the speed of the motor l,
A plurality of engaging portions 2.2 for driving the grain lifting spiral body 31 are protruded from the gear box 34 onto the upper surface of the base @4, and a cylindrical sorting net body 32 is provided separately from the engaging portions 2, 2 for driving the grain raising spiral body. A driving shaft 17a for the cylindrical sorting net body is provided.
Another extended drive shaft 17 is fitted in the cylinder of the grain lifting spiral 31, and the extended driving shaft 17 passes through the inside of the grain lifting spiral 31 and forms a cylindrical sorting net at the upper part of the grain lifting spiral 31. body 32
This is a vertical grain sorting machine that rotates by fitting into the metal part of the machine.

Further, as another conventional technique, there is a technique in which the lower part of a cylindrical sorting net is held only by roller contact from the outer periphery. However, this conventional technique has the problem of unstable rotation.

However, considering the attachment and detachment of the sorting net and the attachment and detachment of the W grain helix when it is replaced due to wear, the conventional technology does not take into account the bearing structure, making the replacement work difficult.

That is, in mounting the lifted shell spiral body 31, an extended drive shaft 17 separate from the cylindrical sorting net drive shaft 17a is used.
is fitted in the cylinder of the grain lifting spiral body 31, and the extended drive shaft 1
7 passes through the interior of the grain-frying spiral 31, so first insert the extension drive shaft 17 into the hole at the bottom of the grain-frying spiral 31, and then insert the driving engagement portion of the grain-frying spiral 31. 2,2
Since the structure is such that the bottom part of the raised shell spiral body 31 is engaged, a worker first checks the hole at the bottom of the raised shell spiral body 31, and then the worker does not know where to engage at all. The drive retaining portion 2.2 must be engaged with the drive retaining portion 2.2 while remaining free.

Further, a fitting portion between the extended drive shaft 17 passing through the inside of the cylindrical sorting net 32 and the lifting shell spiral 31 and the metal of the one cylindrical sorting net 32 is used as a driving portion to rotate. Therefore, there was a problem in that the rotational torque of the cylindrical sorting net 32 also increased. Further, the terminal end of the extended drive shaft 17 is supported by the bearing 20 of the canopy 18 of the shell body 13, and the extended drive shaft 17
There were also safety problems, such as the shaft end of the bearing being exposed from the bearing 20. The lower part of the cylindrical sorting net 32 is held from the outer periphery only by the contact of the roller 39, and the rotation is unstable due to variations in the roundness of the lower part of the cylindrical sorting net 32. Met.

Therefore, when attaching and detaching the grain lifting helix and the sorting net, it is important to simplify the bearing structure so that reliable sorting and grain lifting can be achieved, and also to reduce the load on the motor and place emphasis on worker safety. requested.

"Problems to be Solved by the Invention" The present invention has been made by focusing on such conventional problems, and by adding an appropriate bearing device, it is possible to attach and detach the sorting net and the grain frying spiral. Easy and reliable sorting,
The purpose of the present invention is to provide a vertical ffi grain sorting machine that can perform a grain frying action, reduce the load on the motor, and ensure the safety of the operator.

"Means for Solving the Problems" The present invention is configured as follows in order to solve the problems of the bearing device in the conventional vertical grain sorter.

As shown in the embodiment drawings of FIGS. 1 to 4.

The grain-frying spiral is rotated by the output shaft at the end of a gear box that is directly connected to the motor attached to the base, and a support shaft is fixed to the top surface of the grain-frying spiral, and the support shaft is attached to a canopy fixed within the cover of the shell. It is inserted into the upper support bearing of the provided grain lifting spiral.

The gist of the present invention to achieve such an object is as follows: In the first invention, the grain frying spiral is driven.

A hole drilled in the bottom of the grain lifting spiral is inserted into the tip output shaft of the dual output shaft gear motor, and a removable support shaft is fixed to the upper surface of the grain lifting spiral, and the support shaft The cylindrical sorting net body is pivoted at the center of the shell, and the tip of the support shaft is pivoted to a bearing of a canopy fixed to the resin cover of the shell, so that the end of the support shaft is exposed outside the shell. In the second invention, the rotational drive of the cylindrical sorting net is achieved by providing an annular partition plate facing outward horizontally at the upper opening of the grain guiding cylinder, and placing a partition plate on the partition plate. By providing a plurality of locking members around the periphery and providing a plurality of engagement notches to be locked to the locking members at the hem of the cylindrical sorting net, the cylindrical sorting net can be removed at the lower part of the shell. Since it can be rotated, stable rotation can be obtained without the need for rollers. By eliminating the above-mentioned extension drive shaft, even when attaching and detaching the grain lifting spiral body and the cylindrical sorting net, the grains to be sorted are, for example, brown rice, wheat, naked barley, beer barley, etc. The particle size differs depending on the variety and production area, and of course, even if the same variety and production area are used, the particle size may not be the same every year depending on weather conditions. Taking these into account, even if the sorting conditions are different, extended drive This can be done easily without the shaft getting in the way.

"Operation" Feed unsorted grains to the supply hopper and start the vertical grain sorter.

Inside the supply chamber provided at the base of the grain lifting spiral body, the grains fed from the supply hopper are rotated in the same direction as the sorting net body, and the guide blades of the grain guide cylinder have a bottom surface of approximately the same diameter. The grains are transported downward by the grain guiding cylinder, and are fed through a plurality of grain guiding ports provided on the lower peripheral surface of the grain guiding cylinder to the starting part of a 4g grain spiral rotating in the opposite direction to the sorting net. , the grains are raked up and raised by the grain lifting spiral. and the unsorted grains move from the grain frying spiral to the sorting area,
It is thrown outward by the centrifugal force of the rotation of the spiral. Small grains and waste grains smaller than the sorting holes of the sorting net are discharged to the outside of the sorting system.

Some of the good shells that do not pass through the sorting holes of the sorting net are sent upward while repeatedly falling downward, and finally become refined grains and are released from the outlet provided near the head of the sorting net. is sent to the storage tank.

"Example" An embodiment of the present invention will be described below based on one drawing.

1 to 4 show one embodiment of the invention.

FIG. 6 shows a method of passively engaging the grain lifting spiral and the cylindrical sorting net in a conventional vertical grain sorting machine.

First, a conventional vertical grain sorter will be explained with reference to the overall structural diagram shown in FIG.

The vertical grain sorting@10 is equipped with a supply hopper 40 for supplying unsorted grains on the outer surface of a shell 13 which is mounted on a movable base 11 and equipped with casters 12. Temporary storage tank 15 for storing final grain on the outside surface
is provided.

Inside the shell 13, a grain lifting spiral body 31 for transporting the sorted grains from below to the upper side is installed, and a cylindrical sorting net body having a cylindrical shape with a large number of sorting holes bored on the outer periphery of the grain lifting spiral body 31. 32. Scraping blades 33, 33 are attached to the lower part of the cylindrical sorting net 32 for discharging the small grains, waste grains, etc. to the outside of the shell, and the shell lifting spiral 31 and the cylindrical sorting net 32 are arranged on a concentric axis. A driving section 34 is provided which stands upright and rotates the grain lifting spiral 31 and the cylindrical sorting net 32 relative to each other.

A grain receiver 35 for receiving the supplied grains is provided at the base of the grain lifting spiral 31, and above the grain receiver 35 is a lower partition plate 41 for receiving falling small grains and waste grains. It's partitioned off. Further, as described above, a plurality of lower scraping blades 33, 33 are attached to the lower part of the cylindrical sorting net 32 for scraping out small grains and waste grains accumulated on the lower partition plate 41.

A small grain and waste grain outlet 16 to be discharged from the lower partition plate 41 is provided on the side surface of the shell body 13.

The cylindrical sorting net 32 extends within the lifting shell spiral 31 and connects to the extended drive shaft 17 coupled to the output shaft of the reduction gear 34.
Rotation is transmitted by the prismatic locking portion 22 of the extended drive shaft 1.
7 is pivotally supported by the support metal 20 of the top plate 18 of the shell body 13. 19 is fitted and locked with the prismatic locking portion 21 of the extended drive shaft 17.

Since the cylindrical sorting net 32 is supported only by the prismatic locking portion 22 of the extended drive shaft 17, the lower outer periphery 38
The suspended cylindrical sorting net 32 is held by guide rollers 39 that guide it.

The lifted shell spiral body 31 extends from the deceleration device 34 to the base 514.
It is engaged with the engaging portion 2.2 of the rotating disk 3 that protrudes upward and is driven and rotated.

The cylindrical sorting net 32 is located near the upper end of the cylindrical sorting net 32.
An upper partition plate 43 is provided surrounding the cylindrical sorting net 32 to receive the refined grains, and the cylindrical sorting net 32 is provided with upper scraping blades 44, 44 for scraping out the refined grains. The refined grains scraped out by the him scraping blades 44, 44 are stored in a temporary storage tank 1 provided on the side of the shell body 13.
5 is released.

After the sorting operation is completed, the remaining rice inside the shell is discharged to the outside of the shell by opening a residual rice discharge shutter (not shown) provided outside the shell.

In the vertical grain sorting machine constructed as described above, the bearings of the grain lifting helix 31 are formed as follows.

The grain receiving tube 35 that receives the supplied grains at the base of the 4g grain spiral 31 is configured as follows.

This will be explained in the embodiments shown in FIGS. 1 to 4.

The grain lifting spiral 31 rotates the grain lifting spiral by inserting the output shaft 70 at the tip of the two output shafts of the gear motor 34 and a hole drilled at the bottom of the grain lifting spiral.

As shown in FIG. 3, the rotation direction of the grain frying spiral is clockwise. In this embodiment, the two output shafts have a nut screwed onto the gear shaft in a counterclockwise direction. Of course, the nut does not have to have a hexagonal shape, as long as it can be screwed in the opposite direction to the rotational direction of the fried shell spiral body 31.

Part 4! A removable support shaft 30 is fixed to the upper surface of the grain spiral body 31, and is fitted into the prismatic locking portion 21 at the center of the support shaft to pivotally support the cylindrical sorting net body. The tip thereof is pivotally supported by a bearing 20 of the top M18 fixed in the resin cover 18a of the shell.

In this embodiment, the center portion of the support shaft 30 is connected to the prismatic locking portion 2.
1, however, the support shaft is not for driving the cylindrical sorting net 32 as in the conventional case, but engages with a grain guiding cylinder 51 described later to rotate the cylindrical sorting net 32. Since it is a cylindrical shaft, it may be a single cylindrical shaft instead of a square pillar. Also, the support shaft 30 is removable, and the screw of the support shaft and the fried grain The plane of the bush and the support shaft 30 are inserted into the hole in the upper surface of the spiral body.
By abutting against the flange surface of the support shaft, the support shaft remains upright even when tightened with a screw.

A supply chamber 50 that receives grains supplied from the supply hopper 40, and a cylindrical sorting net 3 within the supply chamber 50.
2 and rotate in the same direction, and the supply chamber 5o is larger than the cylindrical sorting net 32 and the grain guiding cylinder 51 disposed below it. The grain guiding cylinder 51 is formed of a cylinder having an outer diameter, and is fitted into the lower part of the cylindrical sorting net 32 and engages with the engagement hole 32a provided in the net 32. The cylindrical sorting net 32 rotates in the same direction as the cylindrical sorting net 32 by engaging with the projection 33 (in this embodiment, the retaining projection also serves as a scraping blade). The lower peripheral surface of the grain guiding cylinder 51 is provided with a plurality of grain guiding ports 52. which communicate with the m grain spiral 32. The height of the grain guiding port 52 is within 100 mm from the bottom surface of the grain guiding cylinder, and the grain guiding port 52.5 is provided with a height of the grain guiding port 52.
2 and the tip of the supply hopper 40 are installed with a certain distance between them, and a plurality of guiding blades 53 are provided on the outer periphery of the grain guiding cylinder 51 to guide the grains. Mouth 52...
It is attached to the outer periphery of the grain guide cylinder 51 with the height of . . . as the starting point.

The unsorted grains supplied to the supply hopper 40 pass through several guiding blades 5 provided on the outer periphery of the grain guiding cylinder 51.
3. It is transferred downward by...

In the vertical grain sorting machine, the rotation speed of the grain lifting spiral body 31 is higher than that of the cylindrical sorting net body 32 in order to increase the grain lifting power. Said by 51! Since it is cut off from the I-grain helix 31, the unsorted grains are directed toward the feeding port by the centrifugal force of the A-a helix 31 at the tip of the supply hopper 40 and the lowest end of the A-grain helix 31. The grains are not pushed back and are smoothly transferred downward to the grain guide ports 52 by the plurality of guides 53.

The guides 1!53 not only transport the unsorted grains downward, but also always keep the tip of the supply port in a spaced state to eliminate competition of the unsorted grains.

The unsorted grains transferred to the lower surface of the grain guiding cylinder 51 are
Next, the grains are transferred to the lowermost end of the grain frying spiral body 31 through the grain guiding ports 52 provided in four equal parts on the lower surface of the grain guiding cylinder 51.

At this time, the number of grain guiding ports 52 is 3 to 40.
was the most suitable in terms of grain frying capacity and sorting condition.

Further, the number of the guiding blades 53 was matched to the number of the grain guiding ports 52.

However, when the distance between the tip of the supply port 14 and the grain guiding port was eliminated so that they were positioned almost at the same position, the effect of the grain inducer was halved and at the same time the grain frying effect was also halved.

Next, the effect will be explained.

The unsorted grains supplied to the supply hopper 40 are passed through a plurality of guiding blades provided on the outer periphery of a grain guiding cylinder 51 which rotates in the same direction as the cylindrical sorting net and has a bottom surface of approximately the same diameter. 53
It is transported downward by...

The fed unsorted grains are transferred to the Yang f! by the grain guiding cylinder 51. Since it is cut off from the spiral body 31, the unsorted grains are pushed back toward the feeding port by the centrifugal force of the grain lifting spiral body 31 at the tip of the supply hopper 40 and the lowest end of the grain frying spiral body 31. The grains are smoothly transported downward to the grain guide port 52 by the plurality of guide wings 53 without any trouble.

The unsorted grains transferred to the lower surface of the grain guiding cylinder 51 are first passed through the grain guiding ports 52 provided in quarters on the lower surface of the grain guiding cylinder 51. The grains are fed to the starting end of the grain lifting spiral 31, which rotates in the opposite direction to the cylindrical sorting net 32, and the grains are raked up and raised by the grain lifting spiral.

Then, the unsorted grains are moved to the sorting area by the grain frying spiral 31 and are blown outward by the centrifugal force of rotation of the grain lifting spiral 31. Then, the cylindrical sorting net 31
Small grains smaller than the sorting hole.

The waste grains are discharged to the outside of the sorter.

Some of the good grains that do not pass through the sorting holes of the cylindrical sorting net are sent upward while repeatedly falling downward, and finally become fine grains and are passed through the discharge port provided near the head of the cylindrical sorting net 32. and is sent to the - hour storage tank 15.

"Effects of the Invention" According to the vertical grain sorting machine of the present invention, by eliminating the extended drive shaft, even when the sorting conditions are different, the extended drive shaft does not get in the way of the grain lifting spiral and the sorting net. It can be easily attached and detached, and by pivoting with the canopy bearing fixed to the resin cover, safety is increased and rotational torque is reduced.

Grain frying capacity will also be improved.

[Brief explanation of the drawing]

Figures 1 to 4 show one embodiment of the present invention.
The figure is a vertical cross-sectional view showing the structure, FIG. 2 is a vertical cross-sectional view of the upper engaging part of the grain-frying spiral, and FIG. 3 is a state in which the feeding section and the grain-frying spiral 1 cylindrical sorting net are assembled. FIG. 4 is a partially enlarged view of a feeding section, FIG. 5 is a vertical cross-sectional view of a conventional vertical grain sorter, and FIG. 6 is a vertical cross-sectional view of an upper engaging portion of a spiral body for frying grains. lO... Vertical grain sorting a 40... Supply hopper 31... Grain frying spiral body 32... Cylindrical sorting body l... Grain guiding cylinder 3... Grain guiding wing No. 4 figure

Claims (3)

[Claims] (1) A cylindrical sorting net body that is installed upright in a vertically long outer shell and driven to rotate using a two-output shaft gear motor with two output shafts installed on the same straight line as a drive source, and the cylindrical sorting net body In a vertical grain sorting machine that sorts grains while frying the grains, the machine consists of a grain lifting spiral body that forms spiral blades on the outer periphery of a cylindrical body that is erected within a net and is also rotationally driven. The vertical grain sorting machine is characterized in that the rotary drive is achieved by inserting a hole drilled in the bottom of the grain lifting spiral into the tip output shaft of the dual output shaft gear motor to rotate the grain lifting spiral. (2) A removable support shaft is fixed to the upper surface of the grain-frying spiral, and a bush is inserted into the lower surface of the flange of the support shaft through the thread of the support shaft and the hole in the upper surface of the grain-frying spiral; The support shaft is brought into contact with the flat surface of the bush and the flange surface of the support shaft so that the support shaft stands upright, the cylindrical sorting net body is pivoted at the center of the support shaft, and the tip of the support shaft is connected to the shell body. The vertical grain sorting machine according to claim 1, characterized in that the vertical grain sorting machine is pivotally supported by a bearing of a canopy fixed in a resin cover of the invention. (3) The cylindrical sorting net is provided with a bottomed cylindrical grain guiding cylinder coupled to one output shaft of the two-output shaft gear motor, and the grain guiding cylinder is connected to the cylindrical sorting net. A plurality of grain guiding ports are provided on the lower circumferential surface of the grain guiding cylinder, and the grain guiding ports are connected to the grain lifting spiral body. , a plurality of guiding blades are provided on the outer periphery of the grain guiding cylinder, an annular partition plate is provided horizontally outward at the upper opening of the grain guiding cylinder, and the partition plate A locking member is provided around the top, an engagement notch is provided at the hem of the cylindrical sorting net body to lock the locking member, and the locking member and the notch are engaged to guide the grains. The vertical grain sorting machine according to claims 1 and 2, characterized in that it is interlocked with a cylindrical body.