KR100933181B1 - Crusher - Google Patents

Abstract

PURPOSE: A crusher is provided to perform pulverizing operation stably by arranging rotation cutters to a spiral shape, and to improve durability of the crusher by preventing malfunction or failures of the operation. CONSTITUTION: A crusher comprises the followings: a crusher main body(210) having a crushing space in which a crush process is performed; a rotary shaft(221) installed at the inside of the crusher main body; a cutter fixing member(222) combined on the rotary shaft; a rotor(220) installed at the inside of the crusher main body; a plurality of rotary cutters(230) installed at the cutter fixing member; a plurality of fixing cutters(240) installed at the crusher main body; and a driving unit applying torque to the rotor.

Description

Crusher {CRUSHER}

The present invention relates to a pulverizer, and more particularly, to a pulverizer which can effectively perform the pulverization process by using the principle of inertia inertia, and improves durability while improving durability.

In general, a crusher is used as a device used to shred the main raw material to a predetermined size in the manufacturing process or processing process of the industrial site, or to shred to a predetermined size in the process of processing industrial waste and household waste.

The shredder can be composed of various driving methods according to the type, size, throughput, and installation location of the shredder, but multiple cutters are alternately installed on the pair of rotating shafts rotated by the hydraulic drive motor and flow into the cutter. It is comprised so that the crushed object will be crushed by the cutter which rotates.

For example, as shown in Figure 1, the shredder is disposed at a predetermined interval on the hopper 110, a pair of rotary shaft 120 is installed on the bottom of the hopper 110, the crusher is accommodated in the crushed material, the rotary shaft A plurality of cutters 130 alternately installed on the rotating shafts, driving means 140 connected to the rotating shafts 120 to apply a driving force, and the components 110, 120, 130, and 140. The frame 150 is installed and supported.

As described above, the shredder can effectively shred industrial waste and household waste by the cutter 130 coupled to the rotary shaft 120 rotated at a relatively low speed, but the rotary shaft 120 having a plurality of cutters 130 ) Is composed of a pair, it is difficult to install in a narrow space as the overall appearance, such as the hopper 110 is increased and the weight is increased, the manufacturing cost is increased as the equipment such as the drive means 140 is complicated Have

In view of this point, in recent years, a grinder capable of performing a grinding operation by a single rotor has been proposed. For example, the pulverizer is configured to install a single rotary shaft having a plurality of rotary cutters inside the crushing base body and to crush industrial waste and household waste by interaction with a fixed cutter configured on the crushing base side when the rotating cutter is rotated. have.

However, as the grinder is rotated at a higher speed than the crusher, the rotary cutter is easily dull and frequently needs to be replaced, which increases the downtime of the work and increases the maintenance cost due to frequent replacement of the rotary cutter.

In addition, the fixed cutter side is easily worn by the rotating cutter rotated at a high speed, and when the metallic foreign matter is mixed in the pulverized product, it is easily damaged due to impact, etc., and thus, the failure is high and sufficient durability cannot be secured.

In addition, the conventional pulverizer is a plurality of rotary cutters are arranged in a straight line along the longitudinal direction of the rotating shaft to perform the grinding operation at the same time, so that the load and the damage of the rotary cutter and the fixed cutter as well as drive motor, reducer, It acts as a factor to lower the durability of drive means such as couplers.

The present invention has been proposed in view of the above-described contents, and an object thereof is to provide a grinder that can effectively perform a grinding process using the principle of inertia inertia, and improve work efficiency while improving durability.

In order to achieve the above object, the pulverizer according to the present invention, in the pulverizer, the grinding body is provided with a grinding space in which the grinding process is performed; A rotor having a rotating shaft rotatably installed in the crushing base body and a plurality of cutter fixing members installed at predetermined intervals on the rotating shaft; A plurality of rotary cutters installed on the cutter fixing member; A plurality of fixed cutters installed to face the grinding base to form a predetermined gap with the rotary cutter; And a driving means for applying a rotational force to the rotor, and the phases of the cutter fixing member are differently coupled so that the rotary cutter is arranged in a spiral shape along the longitudinal direction of the rotary shaft.

In addition, the fixed cutter may be configured to be movable back and forth so as to correspond to the degree of wear of the grinding blade, and may further include a protective member installed on the upper side to be protected from the impact applied during the grinding process.

Here, the fixed cutter may be formed of a plate member having a plurality of long holes into which the fastening bolt is inserted and fastened, and the protective member may be formed of a plate member having an accommodating hole for accommodating the fastening bolt.

The rotary cutter may be formed in a rectangular parallelepiped shape which can be used by changing the coupling direction by forming a grinding blade at each corner.

The cutter fixing member may be formed by dividing a plurality of cutter coupling portions to which the rotary cutter is coupled to a body having a center hole inserted into the rotary shaft at a predetermined angle, and inclined downward between the cutter coupling portions to converge with each other. First and second inclined surfaces may be formed.

At this time, the angle between the first and the second inclined surface is preferably formed in the range of 150 ~ 156 °.

On the other hand, the grinding base body, the lower block is installed the rotor; A cover block coupled to the lower block so as to be openable and closed, and including a hopper part for accommodating pulverized material; And it characterized in that it comprises a cover opening and closing means for opening and closing the cover block.

Opening angle support means for controlling the opening angle when the cover block is opened; And the cover block may further include a reverse rotation preventing means for supporting so as not to reverse rotation arbitrarily in the open state.

The pulverizer according to the present invention can be pulverized effectively because the pulverization is performed by using the principle of inertia inertia of a relatively high speed rotor, and the rotary cutters which perform the pulverization action are arranged in a spiral and fixed. Since it reaches the cutter side sequentially, not only can the grinding operation be stably performed, but also the load is distributed during the grinding, which can prevent the failure or malfunction of the grinder due to the overload, thereby improving durability. .

In addition, the rotary cutter and the fixed cutter can be used repeatedly by changing the coupling direction when worn, and even if the metal is contained in the crushed material, the damage or wear of the fixed cutter can be reduced by the protection member, thereby reducing the grinding cost and maintenance cost. It has the advantage of reducing.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 2 is a front view showing the overall configuration of the grinder according to an embodiment of the present invention, Figure 3 is a side view showing a grinder according to an embodiment of the present invention, Figure 4 is applied to a grinder according to an embodiment of the present invention It is a perspective view which shows the rotor which becomes.

2 to 3, the grinder according to an embodiment of the present invention, the grinding body 210, the rotor 220 is installed in the interior of the grinding body 210, a plurality of rotation coupled to the rotor 220 A cutter 230, a plurality of fixed cutters 240 installed on the grinding cutter body 210 corresponding to the rotary cutter 230, and a driving means 250 for applying rotational force to the rotor 220.

The grinding base body 210 is a main body manufactured by a plate and a reinforcing rib or the like to provide a grinding space in which a grinding process is performed, and is installed on a supporting frame 260 formed on an installation surface formed of an H-beam or I-beam do.

In addition, the crushing base body 210 includes a lower block 211 on which the rotor 220 is installed, a cover block 212 configured to be openably coupled to the lower block 211, and a hopper part 212a for accommodating pulverized material. ).

The lower block 211 has a rectangular parallelepiped shape to form a pulverization space for pulverizing the pulverized object, and a screen 211a through which a pulverized product of only a suitable size is passed among the pulverized products falling after pulverization. The screen support member 211b is comprised in order to support this screen 211a.

The cover block 212 is rotatably coupled by an upper portion of the lower block 211 corresponding to the lower end of one side thereof by the hinge member 213 to be opened according to the operation of the cover opening and closing means 270 or the lower block 211. To interlock with

The cover opening and closing means 270 may be configured to be selected without limitation as long as the device that can open and close the cover block 212, in the present embodiment, the cylinder 271 side to the lower block 211 as shown in FIG. This rotatably coupled and consists of a hydraulic cylinder coupled to the cover block 212 on the rod 272 side. Although not shown in detail in the accompanying drawings, an oil tank, a hydraulic pump, and a control unit including a solenoid valve are provided for driving the hydraulic cylinder.

 As shown in FIG. 3, the rotor 220 includes a rotating shaft 221 rotatably installed inside the grinding body 210 and a plurality of cutter fixing members installed at predetermined intervals on the outer circumferential surface of the rotating shaft 221. 222.

The rotary shaft 221 is rotatably installed on the grinding body 210 side via a bearing block 254 connected to both sides, and one side thereof is connected to the output shaft of the reducer 252 to be described later to receive the rotational force. .

As shown in FIG. 4, the cutter fixing member 222 has a plurality of cutter coupling portions 222a for coupling the rotary cutter 230 to a body having a center hole 222b inserted into the rotary shaft 221. It is formed in a shape that is divided into a protruding, and between each cutter coupling portion (222a) is formed a receiving groove (222c) for receiving the pulverized material falling from the hopper (212a) side and moved to the grinding point.

Figure 5 is a perspective view showing a detailed configuration of the rotor applied to the grinder according to an embodiment of the present invention, as shown in the cutter coupling portion 222a is an angle of about 72 ° relative to the center hole (222b) It is composed of five to achieve, but is not limited to this, it can be variously modified according to the type of grinding material, throughput.

The receiving groove 222c is formed by the first and second inclined surfaces 222d and 222e which are inclined downward from both cutter coupling portions 222a and converge with each other, and the first and second inclined surfaces 222d and 222e. The angle between the two is important in order to receive the appropriate amount of the to-be-ground object while the rotor 220 rotates at a relatively high speed so that the injected to-be-milled material (the light to-be-milled object) does not flow back upward due to the airflow. To this end, when the angle between the first and the second inclined surface (222d, 222e) is formed in the range of 150 ~ 156 ° it can be seen that the backflow of the grinding object is minimized.

The rotary cutter 230 is configured to be installed on the cutter fixing member 222 to pulverize the pulverized material through interaction with the fixed cutter 240 to be described later, in the present invention, the rotary cutter 230 of the rotary shaft It is characterized by a point configured to be arranged in a spiral shape along the longitudinal direction.

To this end, the plurality of cutter fixing members 222 are coupled on the rotating shaft 221 different in phase. That is, when the cutter coupling members 222a formed on the cutter fixing members 222 are coupled to each other so that the cutter fixing members 222 adjacent to each other have a different phase, the cutter coupling members 222a are coupled to the cutter coupling members 222a. The rotary cutter 230 is also arranged spirally.

As such, when the rotary cutter 230 is arranged in a spiral manner, the load acting as the rotary cutter 230 sequentially reaches the fixed cutter 240 corresponding to the grinding point during rotation of the rotor 220 is also sequentially. Since it is distributed, overload can be prevented. Thus, the durability of the rotor 220 and the driving means 250 can be significantly improved, and the grinding efficiency can also be improved.

On the other hand, the rotary cutter 230 is characterized in that it is configured to be repeatedly reused by switching the coupling direction even if the portion of the grinding blade 231 performing the grinding operation as shown in FIG.

To this end, the rotary cutter 230 is formed in a substantially rectangular parallelepiped shape so that the grinding blade 231 is formed at each corner, and a plurality of fastening bolts 233 fastened to the fastening holes formed in the cutter coupling portion 222a are inserted. The insertion hole 232 is formed in front and back surfaces.

As such, when the rotary cutter 230 is formed into a rectangular parallelepiped shape, the grinding blades 231 are formed at all four corners, so that the grinding blades are not worn without replacing the rotary cutter even if the grinding blades of the specific edges are worn out for a long time. The portion 231 may be repeatedly reused by adjusting the portion to be in the position where the grinding operation is performed.

6 is an enlarged view of a portion A of FIG. 3 for explaining a fixed cutter applied to a grinder according to an embodiment of the present invention, and FIG. 7 is a view for explaining a fixed cutter applied to a grinder according to an embodiment of the present invention. Separate perspective view.

6 and 7, the fixed cutter 240 is configured to face the grinding base body 210 to form a predetermined gap with the rotary cutter 230, and is positioned according to the degree of wear of the grinding blade 241. It is characterized by the fact that it can be adjusted to be reused repeatedly.

For example, the fixed cutter 240 is formed of a substantially plate-like member is fastened on the fixed plate 211c provided on the lower block 211, a plurality of fastening holes 242 for insertion of the fastening bolt 244 in the vertical direction ) Is formed in the form of a long hole is configured to be able to move in the front and rear direction.

And, the fixed cutter 240 is provided with a protective member 243 on the upper side to absorb the impact applied in the grinding process to some extent.

The protection member 243 is formed of a substantially plate-shaped member to seal the upper surface of the fixed cutter 240, and is pressed and fixed by the lower end of the cover block 212 in a state in which the cover block 212 is closed by the lower block 211. It is supposed to be. The protection member 243 is a receiving hole 243a in which the fastening bolt 244 for fastening the fixed cutter 240 is received in the vertical direction.

In addition, the above-described rotary cutter 230 and the fixed cutter 240 is preferably formed of a tool steel for a stable grinding action, the protective member 243 may be formed of a general structural rolled steel.

On the other hand, the driving means 250 is a configuration for applying a rotational force to the rotor 220, as shown in Figure 2 drive motor 251 for generating a driving force, the output shaft and the gear coupling of the drive motor 251 ( One side is connected via 253 and the other side is provided with a reducer 252 connected to the rotation shaft 221 via the gear coupling 253 to reduce the rotational force.

8 is a view for explaining the operation of the grinder according to an embodiment of the present invention.

Referring to FIG. 8, the grinder according to the present embodiment reversely rotates with the opening angle support means 280 to ensure the efficiency and safety of the work in the process of opening and closing the cover block 212 by the cover opening and closing means 270. Prevention means 290 is provided.

The opening angle supporting means 280 may be configured in various forms without any limitation as long as the opening angle supporting means 280 performs a function of supporting the opening range so that the opening range does not exceed a predetermined angle range when the cover block 212 is opened. For example, the opening angle support means 280 corresponds to the anti-rotation piece 281 formed behind the cover block 212 and the anti-rotation piece 281 is supported when the cover block 212 is opened. The stopper 282 is formed on the lower block 211.

The reverse rotation preventing means 290 is configured to support the reverse block (rotation in the opposite direction to the opening direction of the cover block) while the cover block 212 is open, and rotates to the lower block 211. The support member 291 is possibly configured, and the connecting member 292 is formed on the corresponding cover block 212 so as to be connected to the support member 291 in the open state.

Hereinafter will be described the operation of the grinder according to an embodiment of the present invention.

2 to 8, the grinder according to the present invention, when the drive motor 251 is driven in accordance with the operator's operation in the state in which the crushed matter is accommodated in the hopper 212a, the rotational force output to the output shaft is The gearbox is decelerated at a predetermined reduction ratio via the reducer 252 and then transmitted to the rotation shaft 221.

When the rotating shaft 221 is rotated, the cutter fixing member 222 is also rotated in conjunction with the cutter to be dropped from the hopper (212a) to be filled in the receiving groove (222c) and moved at the same time the rotary cutter coupled to the cutter coupling portion (222a) 230 is rotated to the fixed cutter 240 side coupled in the lower block 211 performs a grinding action. At this time, the adjacent rotary cutters 230 are arranged in a spiral so that the grinding cutters can be smoothly sequentially reached while not reaching the fixed cutter 240 side at the same time. As a result, the grinding efficiency is remarkably improved, and the grinding load is also dispersed, so that the durability deterioration of the rotor and the driving means due to the overload can be prevented. In addition, the rotor 220 formed as a single structure is rotated at a relatively high speed to perform a stable grinding action by the principle of inertia inertia.

In this case, when the pulverized material includes a metallic foreign material such as a metal fragment, the metallic foreign material collides with the crushed blade portion of the fixed cutter 240, causing serious damage, but according to the present embodiment, the fixed cutter ( Since an additional protective member 243 is provided on the upper side of the 240, the damage or wear of the fixed cutter 240, which is relatively expensive while primarily absorbing shock, may be reduced.

On the other hand, when the above-mentioned grinding action is carried out for a long time, since the grinding blade parts of the rotary cutter 230 and the fixed cutter 240 are worn, the replacement work should be periodically performed, but the rotary cutter 230 according to the present invention has four Since it is formed in the shape of a rectangular parallelepiped having a crushing blade 231 formed at the corner, the fastening bolt may be disassembled and then reassembled so as to expose the crushed blade portion to the crushed portion. In addition, the fixed cutter 240 can be used by repeatedly reassembled to change the direction of the non-wearing grinding blade 241 to be exposed to the crushing portion, as well as the fastening bolt 244 when the grinding blade portion is worn. Since it can be disassembled and moved to the front and then reassembled, the maintenance cost can be significantly reduced and the downtime can be reduced.

In addition, when adjustment or maintenance of the rotary cutter 230 or the fixed cutter 240 is required, as shown in FIG. 8, the cover opening unit 270 is operated to open the cover block 212, thereby conveniently maintaining the maintenance. You can do it. At this time, by maintaining the open state of the cover block 212 by the opening angle support means 280 and the reverse rotation preventing means 290 provided in the lower block 211 and the cover block 212, and safely maintenance You can do it. That is, since the anti-rotation piece 281 is supported by the stopper 282 formed in the lower block 211 when the cover block 212 is opened, the opening angle thereof can be stably controlled, and the cover block 212 is provided on the cover block 212. Fixing the support member 291 to the connection member 292 formed in the cover block 212 can fundamentally prevent the phenomenon of rotating in the reverse direction.

What has been described above is only one embodiment for implementing the pulverizer according to the present invention, the present invention is not limited to the above embodiment, and do not depart from the gist of the present invention as claimed in the following claims Anyone skilled in the art to which the present invention pertains within the scope will have the technical idea of the present invention to the extent that various modifications can be made.

1 is a view for explaining a general crusher,

2 is a front view showing the overall configuration of a grinder according to an embodiment of the present invention,

3 is a side view showing a grinder according to an embodiment of the present invention;

4 is a perspective view showing a rotor applied to a grinder according to an embodiment of the present invention;

5 is a perspective view showing a detailed configuration of a rotor applied to a grinder according to an embodiment of the present invention;

6 is an enlarged view of a portion A of FIG. 3 for explaining a fixed cutter applied to a grinder according to an embodiment of the present invention;

Figure 7 is an exploded perspective view for explaining a fixed cutter applied to the grinder according to an embodiment of the present invention,

8 is a view for explaining the operation of the grinder according to an embodiment of the present invention.

<Explanation of symbols for main parts of drawing>

210: grinding base 211: lower block

212: cover block 220: rotor

221: rotating shaft 222: cutter fixing member

222a: cutter coupling portion 230: rotary cutter

231,241: Grinding blade 240: Fixed cutter

243: protection member 250: drive means

260: support frame 270: cover opening and closing means

280: opening angle support means 290: reverse rotation prevention means

Claims (8)

In the grinder, A grinding body provided with a grinding space in which a grinding process is performed; A rotor having a rotating shaft rotatably installed in the grinding body and a plurality of cutter fixing members coupled to the rotating shaft at different intervals at predetermined intervals; A plurality of rotary cutters installed on the cutter fixing member to be arranged in a spiral shape along the longitudinal direction of the rotary shaft; A plurality of fixed cutters installed to face the grinding base to form a predetermined gap with the rotary cutter; And It includes a drive means for applying a rotational force to the rotor, The grinding base body includes a lower block in which the rotor is installed, a cover block coupled to the lower block so as to be openable and closed, and a cover block configured with a hopper for accommodating pulverized matter, and cover opening and closing means for opening and closing the cover block. Opening angle support means for controlling the opening angle when the cover block is opened; And And a reverse rotation preventing means for supporting the cover block not to be reversely rotated in an open state. The method of claim 1, The fixed cutter is configured to be capable of moving forward and backward to correspond to the degree of wear of the grinding blade, characterized in that it further comprises a protective member installed on the upper side to be protected from the impact applied during the grinding process. The method of claim 2, The fixed cutter is formed of a plate-shaped member having a plurality of long holes that the fastening bolt is inserted, fastened, The protection member is a crusher, characterized in that formed in the plate-shaped member having a receiving hole for receiving the fastening bolt. The method of claim 2, Wherein the rotary cutter is characterized in that the grinding blade is formed in each corner is formed in a rectangular parallelepiped shape that can be used to switch the coupling direction. The method of claim 1, The cutter fixing member, A plurality of cutter coupling portions to which the rotary cutter is coupled to the body having a central hole inserted into the rotating shaft is divided at a predetermined angle, the first and second inclined surfaces are formed to be inclined downward between each cutter coupling portion to converge with each other A grinder, characterized in that formed. The method of claim 5, Crusher, characterized in that the angle between the first and second inclined surface is formed in the range of 150 ~ 156 °. delete delete

Images