JPH0530513B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a vertical sorting device that simplifies the rotation mechanism and facilitates inspection and maintenance by disassembling the sorting section.

Prior art and its problems In general, a vertical grain sorting device consists of a sorting net that is rotatably installed upright, and a spiral body that is fitted into the sorting net and rotatably installed concentrically. It is customary to have a built-in structure inside the shell, and the rotating mechanism that allows the sorting section to be disassembled for maintenance and inspection is provided with a rotating plate attached to a drive shaft at the inner bottom of the outer shell. A spiral body is mounted on the rotary plate and locked by a pin to rotate the spiral body, and an upper shaft end of an extended drive shaft in which the drive shaft is extended upward via a coupling joint. is supported by the canopy of the outer shell, and a joint provided at the end of the shaft and a bearing provided on the top plate of the sorting net are brought into sliding contact or roller contact to rotate the sorting net. The configuration described in 1982-146475 is known, but in this device, the extension drive shaft is connected to or detached from the drive shaft each time when the sorting net body and the spiral body are assembled or disassembled, and the extension drive shaft is attached to the shaft portion. It is necessary to make sliding contact between the joint part and the bearing part on the sorting mesh body side, and since the joint part is located at the top and bottom of the spiral body, it is difficult to connect them, and the mechanism is complicated and difficult to manufacture. In addition, since the joined extension drive shaft is long, it often causes vibrations in the rotating sorting net, reducing sorting performance. It was a place that was requested by.

In addition, there is a rotating cylinder shaft that is supported by a fixed part and rotated at high speed by a drive motor, and is attached to this rotating cylinder shaft, with one side open for inputting non-processed materials and the other side for discharging solid separated materials. A rotary cylinder that is open and has many pores formed in its peripheral wall, a rotary shaft that is supported concentrically with the rotary cylinder shaft and rotated at high speed by a drive motor, and a rotary shaft that is integrally formed with the rotary shaft. The rotating cylinder consists of a screw conveyor that conveys the solid separated material attached and pressed against the inner wall of the rotating cylinder toward a discharge hole below, and an outer cylinder that is placed around the rotating cylinder and has a discharge pipe at the bottom. A centrifugal separator with an input chute installed at the top and a rotational phase difference between the rotary tube and the screw conveyor was developed in JP-A-47.
Proposed as No. −24645.

However, with this device, the rotary cylinder and screw conveyor cannot be removed simply by separating the input chute from the main body, making inspection and maintenance and parts replacement in the event of a failure difficult.

Purpose of the Invention In view of the above-mentioned points, the present invention rotates a helical body at high speed by means of a rotation locking body provided on a rotating main shaft consisting of a short shaft, and also rotates a helical body at high speed by a rotary locking body provided on a rotating main shaft consisting of a short shaft. Therefore, the porous wall sorting tube is rotated at a low speed, completely eliminating the drawbacks of the conventional device mentioned above, simplifying the rotating mechanism, reducing manufacturing costs, simplifying the device structure, and simplifying assembly.・The purpose is to provide a high-performance vertical sorting device that facilitates disassembly, facilitates inspection and maintenance, and replaces the sorting tube, and constantly performs highly accurate sorting to mass-produce high-quality selected grains. shall be.

Structure of the Invention The vertical sorting device of the present invention has a porous wall sorting tube rotatably installed in a vertical machine frame, a rotating spiral body fitted inside the sorting tube, and installed in the upper part of the machine frame. supplying a mixture of large and small grains to the spiral body from a supplied supply hopper, and discharging only small grains out of the sorting cylinder;
In a sorting device that discharges large grains from the bottom of the sorting cylinder, a supporting vertical shaft is provided upright on the upper wall of a cylindrical body with spiral blades wound around the circumferential surface, and a rotating locking portion is provided on the lower wall. A rotary disk body is provided at the inner bottom of the machine frame, and a rotary main shaft is protruded loosely into a main shaft through hole provided at the center of the disk body, The sorting cylinder is placed on and removably attached to the rotary disc body, and the rotation locking portion of the rotating spiral body is removably connected to the rotation locking body provided at the end of the rotating main shaft. The supply hopper is attached to the vertical support shaft of the rotating spiral body.
The rotary spiral body and the porous wall sorting tube are removably mounted on a vertical machine frame, and the upper bearing portion of the porous wall sorting tube is detachably attached to the supporting vertical shaft. It has a configuration characterized in that it is formed to rotate at different speeds.

DESCRIPTION OF EMBODIMENTS The configuration of the present invention will be explained based on the drawings.
FIG. 1 shows a vertical machine frame 1 in which a porous wall sorting tube 2 is rotatably installed, a rotary spiral body 3 is fitted inside the sorting tube 2, and a rotating spiral body 3 is provided on the top of the spiral body 3. This is a vertical sorting device that supplies a mixture of large and small grains from a supply hopper 4, discharges only small grains to the outside of the sorting tube 2, and discharges large grains from the bottom of the sorting tube 2.

The rotating helical body 3 has a supporting vertical shaft 8 erected on the upper wall portion 7 of a cylindrical body 6 on which the spiral blade 5 is suspended, and a rotating locking portion 10 consisting of an opening or the like on the lower wall surface 9. A rotary disc body 11 is provided at the inner bottom of the machine frame 1 (see Fig. 3), and a spindle through hole 12 provided in the center of the disc body 11 is provided with a free space. A rotary main shaft 13 is protruded in a fitting manner, and the porous wall sorting cylinder 2 is placed on the rotary disc body 11 and is detachably attached thereto, and a rotational lock is provided at the end of the rotary main shaft 13. The rotation locking part 10 of the rotating spiral body 3 is removably locked to the body 14,
(The details will be described later) Furthermore, a shaft cylindrical portion 15 is provided on the outer periphery of the rotating main shaft 13 so as to be slidably rotatable, and the upper cylindrical end thereof is connected to the through hole 15 of the rotary disk body 11.
A gear rotation mechanism 18 connected to an electric motor 17 is provided inside the lower base 34, and a high-speed rotation gear 19 provided on the rotation mechanism 18 is attached to the outer peripheral portion of the lower base 34 in a removable manner using a screw shaft 16 or the like. The lower end of the rotating main shaft 13 is integrally attached to the rotary main shaft 13, and the lower cylindrical end of the shaft cylindrical portion 15 is integrally attached to the low-speed rotating gear 20, so that the rotating spiral body 3 and the porous hole are connected together. The wall sorting tube 2 is configured to rotate at different speeds, and the supply hopper 4 is removably attached to the upper part of the vertical machine frame 1 using a mounting bracket 21.
A shaft bearing part 23 is fixed in the inside of the body by means of a fixing support rod 22, and the vertical shaft 8 of the spiral body 3 is supported by the shaft bearing part 23 so as to be able to be freely attached and detached (see FIGS. 2 and 2). (See Figure 3) The aforementioned rotary disk body 11
The lower tube end of the porous wall sorting tube 2 is slidably fitted into the peripheral side wall 11A, and the attachment pin 24 provided on the sorting tube 2 is connected to the attachment pin 24 provided on the side wall 11A. The porous wall sorting cylinder 2 is removably mounted on the rotary disc body 11 by engaging the slot 25 in a removable manner. In addition, the rotation locking body 1 provided on the rotation main shaft 13
4 is formed into a polygonal shape, and a rotational locking portion 10 consisting of an opening substantially the same shape as the polygon is provided on the lower wall surface 9 of the spiral body 3, and the rotational locking body 14 is attached to the rotational locking portion 10. The rotary spiral body 3 is inserted into the rotary shaft 13 so as to be freely engaged and disengaged, thereby causing the rotary spiral body 3 to be removably engaged with the rotary main shaft 13 and rotated.

Further, as shown in FIG. 3, a rotation locking portion 10A consisting of a pot hole having a polygonal opening having substantially the same shape as the base of the rotation locking portion 14 is attached to the lower wall surface of the spiral body 3.
The rotation locking body 14 may be inserted into the rotation locking portion 10A, and the rotation spiral body may be removably engaged with the rotation main shaft 13. 26 is a fine particle chamber provided on the outside of the porous wall sorting tube 2; 27 is a blade for scraping out fine particles provided at the lower end of the sorting tube 2; 28 is a bearing provided on the outer periphery of the shaft tube portion 15; 29 is a blade for sorting and scraping particles provided on the lower wall surface of the rotary disk body 11; 30 is a fine particle outlet; 31 is a particle regulating outlet; 32 is an upper support rod of the sorting tube 2; 33 is the upper side of the spiral body 3. This is a stirring body installed on the wall.

The operation of the above configuration will be explained below.
When a mixture of large and small grains is fed to the supply hopper 4 of a vertical sorting device and the device is started, the porous wall sorting tube 2 and the rotating spiral body 3 rotate in the same direction at different speeds, so that the mixed grains are fed. The grains flow down from the hopper 4 and flow onto the spiral blades 5 of the inclined rotating spiral body 3 to form a grain layer, and each grain is subjected to centrifugal force by contact with the high speed rotating spiral blades 5 in the porous wall sorting tube. 2, the small grains are forced into the fine grain chamber 26 through holes bored in the peripheral wall of the porous wall sorting tube 2, and the large grains (sorted grains) ) comes into contact with the sorting cylinder 2 rotating at a low speed, and due to the contact force, it revolves in the opposite direction and drifts in an avalanche shape, and due to this drift in the opposite direction, small grains mixed in with the replaced grains. Next, the applied centrifugal force causes the grains to be discharged from the through holes bored in the peripheral wall of the porous wall selection tube 2 and flow down into the fine grain chamber 26, where they are sorted on the spiral blades 5. The grains gradually move obliquely downward due to the rotational force of the spiral body 3 and accumulate at the bottom of the cylinder while swirling inside the porous-walled sorting cylinder 2, and are conveyed by the rotation of the blades 29 to the grading discharge port 31. The small grains in the fine grain chamber 26 are conveyed by the wing pieces 27 and removed from the machine.

Next, the porous wall sorting cylinder 2 and the rotating spiral body 3
When the machine is removed from the vertical machine frame 1 for inspection and maintenance, the supply hopper 4 provided at the top of the machine frame 1 is detached from the machine frame 1 by unscrewing the mounting bracket 21, and the support provided at the top of the spiral body 3 is removed from the machine frame 1. The vertical shaft 8 is detached from the bearing part 23 fixed to the hopper 4 and attached to the vertical machine frame 1.
The top of the is open. Next, when the fixing support rod 22 provided on the upper part of the porous wall sorting tube 2 is lifted, the support rod 22 slides away from the vertical shaft 8 and the lower tube of the porous wall sorting tube 2 is lifted. The locking groove hole 25 provided at the end is detached from the locking pin 24 provided on the side wall 11A of the peripheral end of the rotary disk body 11, and the space between both walls is slidably moved to form the porous wall sorting tube 2. can be lifted and taken out of the vertical machine frame 1. Next, when the spiral blades 5 of the rotating spiral body 3 are lifted,
The polygonal opening of the rotation locking part 10 provided on the lower wall surface 7 of the spiral body 3 separates from the rotation locking body 14 provided at the shaft end of the rotating main shaft 13, and forms a vertical shape similar to the sorting tube 2. It can be taken out to the outside of the machine frame 1. Further, a rotary disk body 1 is loosely fitted to the rotary main shaft 13.
1 can be easily taken out of the machine by unscrewing the screw shaft 16. And each machine part 1, 2,
When the inspection and maintenance operations 3 and 11 are completed, the assembly operation is completed by carrying out the above-mentioned disassembly operation in the reverse order, so the details of the assembly operation will be omitted.

Note that the rotation locking body, the rotation locking portion provided on the lower wall surface 9 of the rotating spiral body 3, and the rotation disk body 1
The connecting means between the peripheral end side wall 11A and the porous wall sorting tube 2 are not limited to the configuration shown in the drawings.
It goes without saying that any general removable connection means may be selected and implemented, and the rotating device of the present invention may use a belt rotating mechanism in addition to the illustrated gear rotating mechanism.

Effects of the Invention As explained above, according to the present invention, the spiral body is rotated at high speed by the rotation locking body provided on the rotating main shaft consisting of a short shaft, and the spiral body is rotated at high speed by the rotary disc body provided on the outer periphery of the main shaft. By making the porous wall sorting tube rotate at a low speed, the drawbacks of the conventional device equipped with the aforementioned extended drive shaft can be completely eliminated, and the rotating mechanism can be simplified to reduce manufacturing costs, and the device structure can be reduced. It can be simplified. In addition, the rotating spiral body, porous wall sorting tube, and supply hopper can be assembled and disassembled sequentially from above, making it extremely easy to inspect and maintain the equipment and replace parts in the event of a breakdown. The porous wall sorting tube can be easily replaced depending on the accuracy and the type of material to be sorted, and it is possible to perform high-precision sorting at all times and mass-produce high-quality selected materials. The vertical shaft is supported by the hopper, and the upper part of the porous wall sorting tube is supported by the supporting vertical shaft, so that the center position of the rotating spiral body and the upper part of the porous wall sorting tube is reliably maintained.

[Brief explanation of the drawing]

FIG. 1 is a side sectional view of the present device, FIG. 2 is an exploded perspective view of its essential parts, and FIG. 3 is an enlarged sectional view of another embodiment thereof. 1... Vertical machine frame, 2... Porous wall sorting tube, 3...
Rotating spiral body, 4... Supply hopper, 5... Helical blade, 6... Cylindrical body, 7... Upper wall surface, 8... Vertical shaft for support, 9... Lower wall surface, 10, 10A... Rotation locking part , 11...Rotating disk body, 11A...Peripheral end side wall, 12...Main shaft through hole, 13...Rotating main shaft, 1
4...Rotation locking body, 15...Shaft cylinder part, 16...
Screw shaft, 17... electric motor, 18... gear rotation mechanism,
19... Gear for high speed rotation, 20... Gear for low speed rotation, 21... Mounting bracket, 22... Support rod for fixing,
23... Bearing part, 24... Pin for attachment, 25...
Attachment slot, 26...Fine particle chamber, 27...Fine particle scraping blade, 28...Bearing, 29...Grain grading scraping blade, 30...Fine particle discharge port, 31... Particle sorting outlet,
32... Upper support rod, 33... Stirring body, 34... Lower base.

Claims (1)

[Claims] 1 A porous wall sorting tube is rotatably installed in a vertical machine frame, and a rotating spiral body is fitted inside the sorting tube, and large and small mixed grains are fed from a supply hopper provided at the top of the machine frame to the rotating spiral body. In a sorting device that supplies grains and discharges only small grains out of the sorting cylinder and discharges large grains from the bottom of the sorting cylinder, a spiral blade is supported on the upper wall surface of a cylindrical body wound around the circumference. A vertical shaft is provided upright, and a rotating locking portion is provided on the lower wall surface of the vertical shaft to form a rotating helix, and a rotary disc body is provided at the inner bottom of the machine frame, and a rotary disc body is provided at the center of the disc body. A rotary main shaft is protruded loosely into the main shaft through hole, the porous wall sorting tube is mounted on the rotary disc body and removably attached, and a rotary main shaft is provided at the end of the rotary main shaft. A rotational locking portion provided at the lower part of the rotating spiral body is removably engaged with the locking body, and the supply hopper is rotatably mounted and detachably mounted on the supporting vertical shaft of the rotating spiral body, so that the supply hopper is vertically mounted. The rotary spiral body and the porous wall sorting tube were formed to rotate at different speeds with respect to each other by being attached to the mold frame and removably pivoting the upper bearing part of the porous wall sorting tube to the supporting vertical shaft. A vertical sorting device characterized by: