KR0140328Y1 - Centrifugal Grain Grinder - Google Patents

Abstract

1. TECHNICAL FIELD OF THE INVENTION

Centrifugal grinder

2. The technical problem the invention is trying to solve

As the existing centrifugal crusher is difficult to disassemble and assemble, the inconvenience of maintenance and repair of the device and the increase of the cost, and the rotation shaft of the pulverization unit rotated by receiving the power of the motor through the belt transmission by the pulley The purpose is to solve the eccentricity and unbalance of the rotating shaft due to the increase in load and heat caused by the rotor cutter.

3. Important uses of the devise

Comprising an outer body and a crushing unit, and the crushing unit is driven to receive the power of the motor installed on the die by the belt transmission by the pulley, the crushing unit 120 is rotated blades 121A, 121B on the upper and lower sides. ) Is provided, the intermediate portion thereof is provided with the auxiliary blade (121C), the upper and lower rotary blades (121A) (121B) and the auxiliary blade (121C) are integrated by the mutual screw 100 and the rotating shaft ( Rota cutter portion 121 and the screw 100 is fastened to 120A); A first fixed cutter portion 122 fastened to the inner periphery of the upper cylinder 111 to correspond to the upper rotary blade 121A of the rota cutter portion 121; The second fixed cutter unit 123 is fastened to the inner peripheral edge of the lower cylinder 112 to correspond to the lower side auxiliary wing 121C of the rotor cutter 121.

4. Important uses of the devise

The assembly and disassembly of the centrifugal crusher is easy, but the grinding effect is excellent, and it is applied to reduce the heat generation rate by minimizing the load of the rotating shaft rotated by the power of the motor.

Description

Centrifugal Grain Grinder

1 is a front view showing the appearance of a conventional centrifugal mill.

Figure 2 shows the shredding device of Figure 1,

(a) is an exploded perspective view of the upper shredding unit,

(b) is an exploded perspective view of the lower shredding unit.

3 is a perspective view showing the appearance of the present invention.

Figure 4 is a cross-sectional view showing the internal structure of the present invention.

5 is a part of the present invention,

(a) is a plan view of the first fixing cutter,

(b) is a plan view of the upper rotor blade rotor portion,

(c) is a plan view of the lower rotor blade of the rotor cutter.

* Explanation of symbols for main parts of the drawings

A: shredding unit 100: screw

110: outer portion 110A: cover

111: upper cylinder 112: lower cylinder

120: grinding unit 120A: rotating shaft

120A, 120C: Bearing 121: Rota Cutter

121A, 121B: Rotating blade 121A-1: Rotating blade

121C: auxiliary wing 122: first fixing cutter

122A: Teeth 122B: Through Hole

123: second fixed cutter

The present invention relates to a grain grinder, and more particularly, to a centrifugal grain grinder that can grind grains by rotating a cutter using a driving force of a motor.

1 shows the appearance of a conventional rotary grinder, that is, a centrifugal grain grinder. The grinder has already been filed and is disclosed in Korean Patent Laid-Open Publication No. 94-21120 (Rotary Grinder).

As shown in (a) and (b) of FIG. 1, a hopper 13 into which grain is injected is installed on the upper side, and the grain fed into the lower side of the hopper 13 is rotated by the transfer screw 12. Conveyor 11 is mounted so as to be transferred to the shredding device portion (A) of one side, the shredding device portion (A) to the upper shredding device portion 20, the lower shredding device portion (30) It is composed. In addition, the power of the motor 52 installed on the other die 53 of the shredding device (A) is transmitted to the belt 51 by the pulleys 50 and 50A.

The upper shredding device 20 is provided with a fixed cutter 23 along the inner periphery of the cylindrical upper shredding body 21, as shown in Figure 2 (a), the inside of the drive of the motor 52 Rota cover 25 which is rotated by the belt 51 by the electric motor is provided so that the grain (P) is inside by the blowing air introduced through the air blowing pipe 22, the air supply passage 24 and the air outlet port (24a) To be gathered together.

And the lower shredding device 30 is provided with a fixed cutter 34 along the inner periphery of the cylindrical lower shredding body 31, as shown in (b) of Figure 2, the inside of the drive of the motor 52 Rota cutter 33 which is rotated by the belt 51 by the electric motor is provided to the grain transfer pipe 38 through the particle outlet (37) and the particle transfer passage 36 by the rotary blowing force thereof. It can be transported.

However, such a conventional centrifugal crusher is a fixed cutter (23, 34) provided along the inner periphery of the upper and lower shredding body (21) (31) is not installed detachably, it is installed completely fixed, so maintenance and repair work Disassembly and assembly of the device for difficult as well as costly had a problem.

In addition, two rotor cutters 25 and 33 are arranged on the rotary shaft 28 of the shredding device A so that not only the load is large but also a lot of heat is generated, and the heat is eccentric and unbalanced of the rotary shaft 28. By causing the phenomenon, the centrifugal force and the repulsive force caused by the rotation of the rotor cutters 25 and 33, as well as the crushing efficiency are lowered, thereby shortening the life of the device early.

Accordingly, the present invention has been made to solve the conventional problems as described above, the object of the present invention is to provide a centrifugal grain grinder with excellent crushing efficiency while being easy to assemble and disassemble. The centrifugal crusher is capable of disassembling by assembling all accessories constituting the device by screwing, and by loading only one rota cutter having several rotary blades on the rotating shaft rotated inside the crushing device by the power of the motor. It is characterized in that to reduce the.

Hereinafter, the configuration of the present invention will be described in detail with reference to the accompanying drawings. Figure 3 is a perspective view showing the appearance of the present invention, Figure 4 is a cross-sectional view showing the internal structure of the present invention, Figure 5 (a), (b), (c) is a component diagram of the present invention. This centrifugal grain grinder is provided with a shredding device portion A capable of pulverizing and discharging the introduced grains as usual, and the shredding device portion A includes a belt 51 by a pulley 50, (A). Drive the electric power received by the motor 52, the configuration is divided into the cover 110A and the upper and lower cylinders 111 and 112, respectively, the outer body portion 110 is fastened to the screw 100, It is composed of a crushing unit 120 for crushing and sending the grain by the rotation of the rota cutter mounted on the rotary shaft (120A) inside the outer body (110).

In this centrifugal grain grinder, the present invention is the crushing unit 120 is provided with rotary blades 121A, 121B on the upper and lower sides, the auxiliary blade 121C is provided in the middle portion thereof, Lower rotor blade (121A) (121B) and the auxiliary blade (121C) is integrated by the mutual screw (100) fastening rota cutter portion 121 is installed on the rotating shaft (120A) and screw 100 is fastened; A first fixed cutter portion 122 fastened to the inner periphery of the upper cylinder 111 to correspond to the upper rotary blade 121A of the rota cutter portion 121; The second fixed cutter portion 123 is fastened to the inner peripheral edge of the lower cylinder 112 to correspond to the lower side auxiliary wing (121C) of the rotor cutter 121, the first fixed cutter The portion 122 is formed as a toothed tooth 122A along the inner periphery as shown in FIG. 5 (a), and the through hole 122B is connected between the teeth 122A so that the inner side and the outer side communicate with each other. ) Is formed.

And as shown in (b) of FIG. 5, the upper rotary blade 121A is provided with several rotary blades 121A-1 at regular intervals to be inclined in one direction, and the second fixed cutter portion ( On the end side of the 123 is provided a number of fixed blades (123A) inclined toward the upper side in the opposite direction to the upper rotary blade (121A).

The following describes the operating relationship and the effect of the present invention configured as described above.

First, when grain is introduced from the upper side of the cover 110A of the outer body 110, the injected grain is laid on the rotary shaft 120A of the crushing unit 120 and the upper portion of the rota cutter portion 121 fastened to the screw 100. By the side rotor blade 121A is blown to the first fixed cutter portion 122, the screw 100 is fastened to the upper cylinder 111 of the outer body portion 110.

The grains thus blown are sandwiched between the upper rotary blade 121A and the first fixed cutter portion 122 having the toothed teeth 122A formed at the inner circumferential edge thereof, thereby peeling off the first fixed cutter portion 122. It passes through the through hole 122B formed between the teeth 122A of the first fixed cutter portion 122 to the outside and hit the inner periphery of the upper cylinder 111, and thus the inside of the upper cylinder 111 Grain is crushed by the grain hitting the wall is repeatedly carried out in such a way that it hits the outer peripheral portion of the first fixed cutter 122 again and again. In addition, the pulverized grain as described above is moved to the lower side, and is pinched between the fixed blade (123A) of the second fixed cutter portion 123 and the auxiliary blade (121C) of the rota cutter portion 121 is secondary. Crushing will be made.

And as described above, the secondary pulverized grain is a cyclone collector (not shown) through the particle flow pipe 38 with the blowing force generated by the rotation of the lower rotor blade 121B of the rota cutter portion 121 again. By being collected together, a series of grinding operations are completed.

As described above, the present invention is to accumulate two rota cutters on a single rotation shaft by accumulating only one rota cutter having a plurality of rotor blades on a rotation shaft of a pulverization unit which is driven by belt power by a pulley. Not only is the load significantly reduced, but also the heat generation rate is reduced, which significantly reduces the occurrence of eccentricity and unbalance of the rotating shaft due to heat, and has the effect of extending the performance and life of the device.

In addition, the accessories applied to the present invention can be screwed into a single assembly, so that the disassembly and assembly of the device can be easily performed when replacing or repairing parts, thereby reducing the work cost for maintenance and repair. There is an advantage to bring.

Claims (3)

Comprising an outer body and a crushing unit, and the crushing unit is driven to receive the power of the motor installed on the die by the belt transmission by the pulley, the crushing unit 120 is rotated blades 121A, 121B on the upper and lower sides. ) Is provided, the intermediate portion thereof is provided with an auxiliary wing (121C), the middle portion thereof is provided with an auxiliary wing (121C), the upper and lower rotary blades (121A) (121B) and the auxiliary wing (121C). Rota cutter portion 121 is integrally formed by fastening the mutual screw 100 and the shaft 100 and the screw 100 fastened to the rotating shaft (120A); A first fixed cutter portion 122 fastened to the inner peripheral edge of the upper cylinder 111 to correspond to the upper rotary blade 121A of the rota cutter portion 121; and the rota cutter portion 121; Centrifugal crusher, characterized in that the second fixed cutter portion 123 is fastened to the inner peripheral edge of the lower cylinder 112 to correspond to the lower side of the auxiliary wing (121C). According to claim 1, The upper rotor blade 121A of the rota cutter portion 121 is formed as a tooth tooth 122A along the inner periphery, between the tooth 122A inward and outward Centrifugal mill, characterized in that the through-hole 122B is formed to pass through. The centrifugal mill according to claim 1, wherein a fixed blade (123A) is provided on an end side of the second fixed cutter portion (123) toward the upper side.