KR101667293B1 - Crusher - Google Patents

Abstract

The present invention relates to an apparatus for crushing a raw material, the crusher comprising: a housing having a space in which the raw material is crushed, a plurality of hammer radially disposed inside the housing, a plurality of rebound plates disposed inside the housing, And a position sensor connected to the upper and lower portions of each of the rebound plates and visually displaying a change in position of the rebound plate to monitor the gap between the hammer and the rebound plate to improve the quality of the raw material, have.

Description

Crusher

The present invention relates to a crushing apparatus, more particularly, to a crushing apparatus capable of improving the quality of a raw material and preventing breakage of equipment by monitoring an interval between a hammer and a rebound plate.

A coal crusher is a device that uniformly crushes coal to a predetermined particle size by supplying coal placed on a yard. Generally, a coal crushing apparatus has a hammer rotated by a rotor between a rebound plate and a rebound plate disposed apart from each other in a housing, and collides coal supplied to the inside of the housing with rotation of a hammer Shred. In addition, a hydraulic cylinder is mounted on the rebound plate, and by operating the hydraulic cylinder, the distance between the hammer and the rebound plate can be adjusted to crush the coal to a desired particle size.

On the other hand, if the coal crusher continuously crushes the coal to a proper particle size, that is, about 3 mm, the hammer and the rebound plate may be worn out, thereby increasing the distance between the hammer and the rebound plate. Therefore, in order to produce a uniform particle size coke, the gap between the hammer and the rebound plate must be adjusted to maintain the proper particle size of the coal.

Conventionally, since the operator can not visually confirm the inside of the housing, the operator can listen to the collision sound between the rebound plate and the hammer using the blue bar while moving the rebound plate with the hydraulic cylinder, and adjust the gap between the hammer and the rebound plate Respectively. Therefore, the accuracy of the adjustment operation is low, so that the gap between the hammer and the rebound plate may not be properly adjusted. Therefore, if the gap between the hammer and the rebound plate is too narrow, the equipment may be damaged, and the quality of the coke may be deteriorated because the particle size of the coal is not accurately controlled.

Korean Patent Publication No. 2012-0033100

The present invention provides a crushing device capable of monitoring the distance between a hammer and a rebound plate.

The present invention provides a crushing device capable of improving the quality of a raw material and preventing breakage of equipment.

The present invention relates to an apparatus for crushing a raw material, the crusher comprising: a housing in which a space for crushing the raw material is formed; A plurality of hammers disposed radially inside the housing; A plurality of rebound plates arranged on the outer side of the hammer inside the housing; And a position sensor connected to the upper and lower portions of each of the rebound plates and visually displaying a change in position of the rebound plate.

Wherein the position sensor comprises: a sensor for sensing a change in position of the rebound plate; And an informing unit for displaying the positional change of the rebound plate sensed by the sensing unit in a two-dimensional or three-dimensional manner.

Wherein the sensing unit comprises: a moving bar, one end of which is connected to the rebound plate outer wall and is movably disposed along the rebound plate; And a rotation bar connected to the other end of the movement bar and rotatably arranged in accordance with the movement of the movement bar,

The informing unit includes an informing member connected to the bar and sensing the amount of rotation of the bar to indicate the position of the bar.

Wherein the informing member comprises: a plurality of plates disposed along the shape of the plurality of rebound plates disposed on the outside of the housing; A plurality of transmission units respectively connected to the plurality of plates; And a reduction unit connected to the rotary bar and winding the transfer unit by rotation of the rotary bar.

The deceleration unit winds the transmission unit in a direction opposite to the rotating direction of the rotating bar.

Wherein the notification member comprises: a case defining a space in which the plurality of plates are received; And an elastic member having one end connected to the plurality of plates and the other end supported on the inner wall of the case to provide an elastic force to the plate.

Wherein the notification member comprises: a sensor connected to the rotating bar and measuring a rotation amount of the rotating bar; And a display unit connected to the sensor and visually displaying the position of the rebound plate.

Wherein the moving bar comprises: a body extending in one direction; A connecting portion provided at one side of the body and connected to the rebound plate in a vertical direction so as to be rotatable; And a contact portion formed on the other surface of the body so as to have a concave-convex shape and rotate the rotating bar.

And a driver connected to upper and lower portions of each of the rebound plates to move the rebound plate.

One end of the position sensor is connected to the upper end and the lower end of the rebound plate, and one end of the actuator is disposed close to one side of the position sensor.

And a controller connected to at least one of the position sensor and the driver and controlling the operation of the actuator according to the position of the rebound plate displayed by the position sensor.

According to an embodiment of the present invention, the shredding device may include a position sensor to visually display a change in position of the rebound plate. For example, the gap between the rebound plate and the hammer, the position of the rebound plate, or the shape in which the rebound plate is rotated and deviates from the correct position can be visualized in two dimensions or three dimensions. Thus, the operator can easily confirm whether the rebound plate is in the correct position or not.

Further, when the operator adjusts the distance between the hammer and the rebound plate, the position of the rebound plate can be monitored in real time, and the accuracy of the work can be improved. In addition, the quality of the produced coke can be improved by obtaining an even distribution of the coal particles according to the precise spacing between the hammer and the rebound plate. The interval between the hammer and the rebound plate is too narrow to prevent the hammer or the rebound plate from being prematurely worn, and it is possible to prevent the equipment from being damaged by an incorrect interval adjustment.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic view of a shredding device, a feeder, and a chute according to an embodiment of the present invention; Fig.
2 is a view showing a crushing apparatus according to an embodiment of the present invention.
3 is a view showing a shredding apparatus according to another embodiment of the present invention.
4 is a flowchart showing a method of monitoring a shredding apparatus according to an embodiment of the present invention.
5 is a view showing the operation of the shredding apparatus according to the embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. It will be apparent to those skilled in the art that the present invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, It is provided to let you know. To illustrate the invention in detail, the drawings may be exaggerated and the same reference numbers refer to the same elements in the figures.

FIG. 1 is a schematic view showing a shredding apparatus, a feeder, and a chute according to an embodiment of the present invention, FIG. 2 is a view showing a shredding apparatus according to an embodiment of the present invention, and FIG. FIG. 4 is a flow chart showing a method of monitoring a crushing apparatus according to an embodiment of the present invention, and FIG. 5 is a view showing an operation of the crushing apparatus according to an embodiment of the present invention.

The crushing apparatus 100 according to an embodiment of the present invention is a crushing apparatus for crushing a raw material and includes a housing 110 in which a space for crushing the raw material is formed, A plurality of rebound plates 131 and 132 disposed on the outer side of the hammer 120 inside the housing 110 and a plurality of rebound plates 131 and 132 connected to upper and lower portions of the rebound plates 131 and 132, And a position sensor 140 for visually displaying the change. The shredding apparatus 100 may further include a rotating shaft 160, a shaft 170, a driver 150, and a controller 160. At this time, the raw material may be coal.

1 or 2, a feeder 300 and a chute 200 may be disposed on the upper side of the crusher 100 so as to uniformly supply the raw material. That is, the raw material supplied to the crushing apparatus 100 through the feeder 300 and the chute 200 passes through the inlet formed at the upper end of the housing 110 and flows into the interior of the housing 110, And the rebound plates 131 and 132 while being crushed to a predetermined particle size. The raw material crushed at a predetermined particle size may be loaded on a belt conveyor disposed under the crushing apparatus 100 through an outlet formed at the lower end of the housing 110 and conveyed for a subsequent process, for example, a coke making process.

However, if the crushing apparatus 100 continuously crushes the raw materials, the hammer 120 or the rebound plates 131 and 132 may be worn out, thereby increasing the distance between the hammer 120 and the rebound plates 131 and 132. Therefore, it is necessary to adjust the distance between the hammer 120 and the rebound plates 131 and 132 to maintain the proper particle size of the raw material. The crushing apparatus 100 according to an embodiment of the present invention includes a position sensor 140 to monitor the position of the rebound plates 131 and 132 and to easily check the position of the hammer 120 and the rebound plates 131 and 132 And the distance between the hammer 120 and the rebound plates 131 and 132 can be precisely adjusted.

The housing 110 extends in the longitudinal direction and has a space in which the hammer 120 and the rebound plates 131 and 132 can be disposed. In addition, the upper and lower portions of the housing 110 may be opened to form an inlet through which the raw material flows and an outlet through which the raw material is discharged. Thus, a path through which the raw material passes in the height direction can be formed inside the housing 110. However, the structure and the shape of the housing 110 are not limited to these, and may vary.

The hammer 120 is radially disposed inside the housing 110 and serves to hit and crush the raw material supplied to the inside of the housing 110. To this end, a rotating shaft 160 is rotatably installed in the housing 110, and a plurality of shafts 170 may be radially connected to the outer circumferential surface of the rotating shaft 160. A hammer 120 is mounted on an end of the shaft 170 and the hammer 120 can rotate around the rotation shaft 160 by rotating the rotation shaft 160 to strike a raw material supplied to the inside of the housing 110 have. However, the present invention is not limited to this, and the hammer 120 may be collided with the raw material by various methods to crush the raw material.

The rebound plates 131 and 132 may be formed in a plate shape extending in the longitudinal direction and may have a predetermined curvature so as to surround the hammer 120. A plurality of rebound plates 131 and 132 may be provided to face the hammer 120. For example, the first rebound plate 131 and the second rebound plate 132 may be provided on opposite sides of the housing 110, facing each other. A stepped surface (or irregular surface) may be formed on one side of the rebound plates 131 and 132 facing the hammer 120 to facilitate breaking of the raw material passing between the hammer 120 and the rebound plates 131 and 132 . However, the structure and shape of the rebound plates 131 and 132 are not limited to these, and may vary.

The actuator 150 is connected to the upper and lower portions of the rebound plates 131 and 132 and causes the rebound plates 131 and 132 to move back and forth in the width direction crossing the longitudinal direction. The actuator 150 may be a hydraulic cylinder and may be connected to the rebound plates 131 and 132 inside the housing 110 through the housing 110 in the width direction outside the housing 110.

The driver 150 may include an upper driver 151 connected to an upper end of an outer wall of each of the rebound plates 131 and 132 and a lower driver 152 connected to a lower end of an outer wall of the rebound plates 131 and 132. One end of the driver 150 may be disposed close to one side of the position sensor 140 to be described later. Therefore, the position sensor 140 can easily detect a change in the position of the rebound plates 131 and 132 by the driver 150.

The position sensor 140 includes a sensing unit for sensing a change in position of the rebound plates 131 and 132 and an informing unit for displaying a change in position of the rebound plates 131 and 132 sensed by the sensing unit in two or three dimensions. At this time, one side of the position sensor may be connected to the upper and lower ends of the rebound plates 131 and 132. That is, one end of the position sensor 140 is connected to the edge of the rebound plates 131 and 132 to easily detect a change in the position of the rebound plates 131 and 132.

2, the sensing unit includes a movement bar 141 having one end connected to the outer wall of the rebound plates 131 and 132 and movably disposed along the rebound plates 131 and 132, And a rotation bar 142 which is connected and rotatably arranged in accordance with the movement of the movement bar 141.

The moving bar 141 includes a body 141c extending in the width direction, a connecting portion 141a provided on one side of the body 141c and connected to the rebound plates 131 and 132 so as to be vertically rotatable, And a contact portion 141b formed on one surface of the other side of the body 141c so as to be rotatable about the rotation bar 142. [

For example, the first rebound plate 131 is formed with a pair of support rods 131a protruding outwardly at the upper and lower portions thereof. The connection portion 141a is formed in a 'T' shape, 131a. A support bar may also be provided on the second rebound plate to allow the bar to be rotatably connected. Therefore, even if the position of the rebound plates 131 and 132 is inclined, the connection part 141a rotates to correspond to the change of the position of the rebound plates 131 and 132. [

In addition, the contact portion 141b is formed in a concavo-convex shape and contacts the rotation bar 142 to be described later. Thus, when the movable bar 141 is moved back and forth in the width direction by the rebound plates 131 and 132, the contact portion 141b can be moved forward and backward to rotate the rotating bar 142. [

The body 141c may be formed as one body or a plurality of bodies. For example, the body 141c may be divided into two parts so that the center part can be connected refractingly. That is, a spherical member may be formed at one side and a semicircular member may be formed at the other side to support the spherical member in a rotatable manner. Accordingly, the center of the body 141c can be refracted, so that even if the position of the rebound plates 131 and 132 is inclined, the body 141c is refracted to more effectively cope with the position change of the rebound plate 131.132.

The movement bar 141 may be connected to a plurality of positions of the rebound plates 131 and 132 to sense changes in the position of the rebound plates 131 and 132 at a plurality of positions. For example, the movement bar 141 may be connected to the edges of the rebound plates 131 and 132, respectively. Accordingly, the movement bar 141 can detect a change in the width direction of the rebound plates 131 and 132, and a longitudinal direction deformation of the rebound plates 131 and 132. However, the number of the movable bars 141 and the positions of the movable bars 141 connected to the rebound plates 131 and 132 are not limited thereto and may vary.

The rotation bar 142 is formed to extend in the height direction. One end of the rotation bar 142 is formed into a gear wheel shape 142a and contacts the contact portion 141a of the movement bar 141. [ When the moving bar 141 is moved back and forth by the rebound plates 131 and 132, the toothed wheel 142a of the rotating bar 142 engaged with the contact bar 141a of the moving part 141 rotates, can do. That is, the movement bar 141 senses movement of the rebound plates 131 and 132, and the rotation bar 142 may convert the linear motion of the movement bar 141 into rotational motion.

The notification unit includes a notification member 143 connected to the rotation bar 142 and sensing the amount of rotation of the rotation bar 142 to indicate the position of the repulsion plates 131 and 132.

The notch member 143 includes a plurality of plates 143a and 143b disposed on the outer side of the housing 441 in a manner that the plurality of rebound plates 131 and 132 are disposed, And a reduction unit 143c connected to the rotation bar 142 and winding the transfer unit 143e by rotation of the rotation bar 142. [

The notch member 140 includes a case 143i for defining a space for accommodating the plurality of plates 143a and 143b therein and a case 143i having one end connected to the plurality of plates 143a and 143b, And an elastic member 143d which is supported by the inner wall of the case 143i and provides an elastic force to the plates 143a and 143b.

The case 143i is provided on the outer side of the housing 110 and forms a space in which the plates 143a and 143b can be provided. In addition, one side of the case 143i may be opened or a transparent glass may be formed so that the inside of the case 143i can be seen so that the operator can observe the inside of the case from the outside. At this time, the case 143i may be formed to be smaller than the housing 110. However, the structure and the shape of the case 143i are not limited thereto and may vary.

The plates 143a and 143b may be formed along the shape of the rebound plates 131 and 132. The plates 143a and 143b are provided in the case 143i as many as the number of the rebound plates 131 and 132 so that the rebound plates 131 and 132 are disposed in the same shape as that in which the rebound plates 131 and 132 are disposed.

For example, the first plate 143a and the second plate 143b may be provided in a pair facing each other in a manner that the rebound plates 131 and 132 are disposed on both sides of the inner side of the case 143i. That is, the plates 143a and 143b can move in correspondence with the movement of the rebound plate () within the housing (1) while being moved by the transmission unit 143e to be described later. Therefore, the plate () can visually display the position state of the rebound plate ().

The transfer unit 143e may be a wire. A plurality of transmission units 143e are provided as many as the number of the reduction units 143c are provided and one end thereof is connected to the upper end or the lower end of the plates 143a and 143b and the other end thereof is connected to the reduction unit 143c to be described later. That is, when the rebound plates 131 and 132 move, the movable bar 141 moves and rotates the rotary bar 142. When the rotary bar 141 rotates, the deceleration unit 143c winds the transfer unit 143e, (143a, 143b) can be moved corresponding to the positional change of the rebound plates (131, 132). Accordingly, the position of the rebound arms 131 and 132 inside the housing 110 can be monitored in real time by viewing the positions of the plates 143a and 143b.

Further, the transmitting unit 143e can be connected to a plurality of positions of the plates 143a and 143b to sense the change in the position of the plates 143a and 143b at a plurality of positions. For example, the transfer unit 143e may be connected to the edges of the plates 143a and 143b, respectively. Thus, the plates 143a and 143b can visually display the change in the width direction of the rebound plates 131 and 132, and the longitudinal direction deformation of the rebound plates 131 and 132, respectively. However, the number of the transfer units 143e provided and the position connected to the plates 143a and 143b are not limited thereto and may vary.

The deceleration unit 143c is connected to the rotation bar 142 to decelerate the rotational force transmitted by the rotation bar 142. [ For example, the case 143i or the plates 143a and 143b may be 1/30 of the size of the housing 110 or the rebound plates 131 and 132. When the rotation force transmitted through the rotation bar 142 is transmitted to the transmission unit 143e by the movement of the rebound plates 131 and 132, the plates 143a and 143b move 30 times as much as the rebound plates 131 and 132 . Therefore, in order to move the plates 143a and 143b corresponding to the rebound plates 131 and 132 only by the distance moved by the rebound plates 131 and 132, the rotational force transmitted by the rotation bar 142 is decelerated and transmitted to the plates 143a and 143b Should be.

That is, the deceleration unit 143c decelerates the rotation of the rotation bar 142 by a reduced size relative to the rebound plates 131 and 132 of the plates 143a and 143b to move the plates 143a and 143b to the positions of the rebound plates 131 and 132 The operator can monitor the positions of the plates 143a and 143b and monitor the positions of the rebound plates 131 and 132. [

Further, the reduction unit 143c can wind the transfer unit 143e in a direction opposite to the rotation direction of the rotation bar 142. [ That is, when the reduction unit 143c winds the transmission unit 143e in the rotating direction of the rotation bar 142, the plates 143a and 143b can move in the direction opposite to the direction in which the rebound plates 131 and 132 are moved.

The deceleration unit 143c winds the transmission unit 143e in the direction opposite to the rotating direction of the rotating bar 142 and causes the plates 143a and 143b to move in the same direction as the moving direction of the rebound plates 131 and 132 . Accordingly, when the operator adjusts the distance between the rebound plates 131 and 132 and the hammers 120, it is possible to monitor the positions of the plates 143a and 143b and monitor the positions of the rebound plates 131 and 132, .

The elastic member 143d may be a spring, and a plurality of elastic members 143d may be provided, one end of which is connected to the upper ends of the plates 143a and 143b, and the other end thereof is connected to and supported by the inner wall of the case 143i. For example, the transmission unit 143e may be connected to the plates 143a and 143b through the centers of the case 143f and the elastic member 143d.

Further, the elastic member 143d provides an elastic force to the plates 143a and 143b. That is, when the speed reducer 143c releases the transmitting member 143e, the transmitting member 143e may be stuck to the plates 143a and 143b with a longer length. At this time, since the elastic member 143d pushes the plates 143a and 143b as much as the transmission unit 143e is struck by the elastic force, the transmission unit 143e can move along the plates 143a and 143b and become taut. Therefore, the elastic unit 143d can serve to maintain the tension of the transmission unit 143e.

The controller 160 may be connected to at least one of the position sensor 140 and the driver 150 and may control the position of the actuator 150 according to the positions of the rebound plates 131 and 132 indicated by the position sensor 140. [ The operation can be controlled. The operator monitors the position of the rebound plates 131 and 132 displayed on the position sensor 140 and controls the operation of the actuator 150 through the controller 160 so that the interval between the rebound plates 131 and 132 and the hammer 120 Can be accurately adjusted.

Hereinafter, a notification member according to another embodiment of the present invention will be described.

3, the notification member 143 according to another embodiment of the present invention includes a sensor 143f connected to the rotation bar 142 and measuring the rotation amount of the rotation bar 143, And a display unit 143g connected to the display unit 143f for visually displaying the position of the rebound plates 131 and 132.

The sensor 143f is connected to the rotation bar 142 to measure the rotation amount of the rotation bar 142. [ For example, the sensor 143f may be an encoder and may measure the rotational angular displacement of the rotating bar 142 and convert it into a digital signal. However, the present invention is not limited to this, and various types of sensors capable of measuring the rotation amount of the rotation bar 142 can be used.

The display unit 143g is connected to the sensor 143f and can visually display the signal transmitted from the sensor 143f. For example, in the display unit 143g, the shape corresponding to the rebound plates 131 and 132 may be displayed in a two-dimensional or three-dimensional manner. When the rebound plates 131 and 132 are moved, the sensor 143f senses the rebound plates 131 and 132, 143g, and the display unit 143g can display it on the screen. Thus, the operator can precisely adjust the gap between the rebound plates 131 and 132 and the hammer 120 while monitoring the display unit 143g.

For example, the display unit 143g can be connected to the controller 160, and when the position of the picture corresponding to the rebound plates 131 and 132 displayed on the display unit 143g is adjusted, The positions of the rebound plates 131 and 132 can be adjusted as shown in the figure displayed on the unit 143g.

Hereinafter, a method for monitoring a shredding apparatus according to an embodiment of the present invention will be described.

Referring to FIG. 4, a method of monitoring a crushing apparatus according to an embodiment of the present invention includes a step S100 of detecting a linear motion of a rebound plate, a step S200 of converting the linear motion into a rotation motion, (S300), and displaying the position of the rebound plate on the basis of the measured value (S400).

When the crusher 100 is continuously crushed, the hammer 120 or the rebound plates 131 and 132 may be worn out and the gap between the hammer 120 and the rebound plates 131 and 132 may increase. Therefore, it is necessary to adjust the distance between the hammer 120 and the rebound plates 131 and 132 to maintain the proper particle size of the raw material. Therefore, it is necessary to adjust the distance between the hammer 120 and the rebound plates 131 and 132 while monitoring the position of the rebound plates 131 and 132.

The actuator 150 includes an upper driver 151 connected to the upper end of the outer side wall of each of the rebound plates 131 and 132 and a lower driver 152 connected to the lower end of the outer side wall of the rebound plates 131 and 132, Direction. Therefore, when the operation of the actuator 150 is controlled when adjusting the position of the rebound plates 131 and 132, the rebound plates 131 and 132 perform a linear motion. The movement bar 141 connected to the rebound plates 131 and 132 linearly moves by the rebound plates 131 and 132 and the rotation bar 142 rotates while the movement bar 141 linearly moves. That is, the rotation bar 142 converts the linear motion of the movement bar 141 into a rotation motion.

Then, the notifying member 143 can measure the amount of rotation of the rotating bar 142 and visually display the position of the rebound plates 131 and 132. For example, the speed reducer 143c winds the transfer unit 143e in the direction opposite to the rotating direction of the rotating bar 142 to move the plates 143a and 143b. At this time, the speed reducer 143c decelerates the rotation amount of the rotation bar 142 to match the size of the plates 143a and 143b with respect to the rebound plates 131 and 132 so that the positions of the rebound plates 131 and 132 are the same .

Alternatively, the sensor 143f measures the amount of rotation of the rotary bar 142 and transmits it to the display unit 143g, so that the display unit 143g can visually display the position of the rebound plates 131 and 132 on the screen . The operator can monitor the positions of the rebound plates 131 and 132 inside the housing 110 by viewing the positions of the rebound plates 131 and 132 displayed on the display unit 143g.

For example, as shown in FIG. 5, the upper side of the first rebound plate 131 may be too advanced and the lower side may be too far backward. Accordingly, the movable bar connected to the upper side of the first rebound plate 131 may be moved forward, and the movable bar connected to the lower side may be moved backward. Then, the moving bar connected to the upper side of the first rebound plate 131 rotates the rotating bar, and the speed reducer rotates in the direction opposite to the rotating direction of the rotating bar to release the transmitting unit. Therefore, the transmission unit connected to the upper side of the first plate 143a is loosened, and the elastic unit can be arranged on the upper side of the first rebound plate 131 by advancing the upper side of the first plate 143a.

Meanwhile, the traveling bar connected to the lower side of the first rebound plate 131 also rotates the rotating bar, and the speed reducer rotates in the direction opposite to the rotating direction of the rotating bar to wind the transmitting unit. Therefore, the transfer unit connected to the lower side of the first plate 143a can be arranged in a shape like the lower side of the first rebound plate 131 by reversing the lower side of the first plate 143a. At this time, the position of the second rebound plate 132 can also be visually displayed through the second plate 143b.

The operator can confirm the position of the rebound plates 131 and 132 in the housing 110 by checking the positions of the plates 143a and 143b. Accordingly, the operation of the driver 150 can be controlled through the controller 160. [ That is, since the upper portion of the first rebound plate 131 is too advanced, the operation of the upper driver 151 can be controlled to move the upper side of the first rebound plate 131 backward. Then, the upper side of the first rebound plate 131 is moved backward and the upper side of the first plate 143a can be moved correspondingly. Accordingly, the operator can move the first rebound plate 131 in the housing 110 to the desired position while monitoring the position of the first plate 143a.

Since the lower side of the first rebound plate 131 is too far backward, it is possible to advance the lower side of the first rebound plate 131 by controlling the operation of the lower driver 152. Then, the lower side of the first plate 143a can also move correspondingly. At this time, the position of the second rebound plate 132 can be adjusted while monitoring the position of the second rebound plate 132 through the second plate 143b. Therefore, the accuracy of the operation of adjusting the position of the rebound plates 131 and 132 can be improved.

Therefore, the quality of the raw material produced by the precise spacing between the hammer 120 and the rebound plates 131, 132 can be improved. The interval between the hammer 120 and the rebound plates 131 and 132 is too narrow to prevent the hammer 120 or the rebound plates 131 and 132 from being prematurely worn out and to prevent the equipment from being damaged by an incorrect interval adjustment .

Although the present invention has been described in detail with reference to the specific embodiments thereof, it will be apparent to those skilled in the art that various modifications and variations can be made without departing from the scope of the present invention. Therefore, the scope of the present invention should not be limited by the described embodiments, but should be defined by the appended claims, as well as the appended claims.

100: crushing device 110: housing
120: hammer 131, 132: rebound plate
140: Position sensor 141: Moving bar
142: Rotary bar 143: Notification member
150:

Claims (11)

An apparatus for crushing a raw material,
A housing having a space in which the material is crushed;
A plurality of hammers disposed radially inside the housing;
A plurality of rebound plates arranged on the outer side of the hammer inside the housing;
And a position sensor connected to upper and lower portions of each of the rebound plates and having a sensing unit for sensing a change in position of the rebound plate and a notification unit for indicating a change in position of the rebound plate sensed by the sensing unit,
The sensing unit includes a moving bar having one end connected to the outside wall of the rebound plate and movably disposed along the rebound plate, and a rotating bar connected to the other end of the moving bar and rotatably disposed in accordance with the movement of the moving bar ≪ / RTI &
Wherein the informing unit includes a plurality of plates disposed along the shape of the plurality of rebound plates disposed on the outer side of the housing, a plurality of transmitting units connected to the plurality of plates, And a reduction unit for winding the transfer unit. delete delete delete The method according to claim 1,
And the deceleration unit is configured to take up the transfer unit in a direction opposite to the rotational direction of the rotary bar. The method according to claim 1,
Wherein the notification unit includes: a case defining a space in which the plurality of plates are stored; And an elastic member having one end connected to the plurality of plates and the other end supported on an inner wall of the case to provide an elastic force to the plate. delete The method according to claim 1,
Wherein the moving bar comprises: a body extending in one direction; A connecting portion provided at one side of the body and connected to the rebound plate in a vertical direction so as to be rotatable; And a contact portion formed on one surface of the other side of the body in a concavo-convex shape and rotating the rotating bar. The method according to claim 1,
And a driver connected to the upper and lower portions of each of the rebound plates to move the rebound plate. The method of claim 9,
The position sensor has one side connected to the upper end and the lower end of the rebound plate,
Wherein the actuator is disposed in proximity to one side of the position sensor. The method of claim 9,
And a controller connected to at least one of the position sensor and the actuator and controlling an operation of the actuator according to a position of the rebound plate displayed by the position sensor.

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