JPH0824686A - Crushed grain size adjustment device for vertical crusher - Google Patents

Abstract

PURPOSE:To obtain crushed grains of desired grain sizes different from each other by one crusher and deal with the wear with time by providing a couple of adjustment boards facing each other along the case main body inner peripheral wall on the position almost at the same horizontal level as a crushing element on the lowermost step and a forward and backward reciprocating means for moving forward and backward a couple of adjustment boards. CONSTITUTION:The crushed grain size adjustment device 22 consists of adjustment boards 22a, 22b facing each other along the case main body inner peripheral wall on the position almost on the same horizontal level as a crushing element 20a on the lowermost step and hydraulic cylinders 22b, 22b for moving forward and backward the adjustment boards 22a, 22a, and the adjustment boards 22a, 22a are connected with rods 22c, 22c of the hydraulic cylinders 22b, 22b on the rear face. The adjustment boards 22a, 22a are moved forward by the hydraulic cylinders 22b, 22b to shorten the distance to the crushing body 20a on the lowermost step and make the smaller grain size of a material to be crushed passing through. Also the adjustment boards 22a, 22a are moved backward to enlarge the distance to the crushing body 20a on the lowermost step and make larger the grain size of the material to be crushed passing through.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a crushing particle size adjusting device for a vertical crusher capable of adjusting the particle size of an object to be crushed.

[0002]

2. Description of the Related Art Conventionally, as a vertical crusher of this type, there is a scrap crusher device disclosed in Japanese Patent Publication No. 56-15299. In the scrap crusher device, as shown in FIG. 5, a rotary shaft 53 is axially provided at a position penetrating the center of the machine body 51, and disks 54 are provided on the rotary shaft 53 at predetermined intervals. A crusher mounting frame 55 is erected on the circumference between the discs adjacent to each other in the vertical direction, and a crusher 57 having saw-teeth 56 around it is loosely fitted to the crusher mounting frame 55 and the crusher 57.
And the disc 54
At the position corresponding to the lowermost disc 54A of the ring-shaped plate 52
Is fixed to the inner surface of the machine body, the inner peripheral surface thereof is close to the outer peripheral side surface of the disk 54A, and the notch hole 58 is provided in the disk 54A. The scrap crusher described above does not have a crushing particle size adjusting device.

[0003]

Considering post-treatments such as recycling and disposal at the stage of crushing iron scraps and industrial waste, it is desirable that the material of a certain material has a substantially constant particle size. Further, due to long-term use of the crusher, abrasion lining of the crusher, abrasion of the crushing hammer, etc. changed the crushed particle size, and sometimes the initial particle size could not be obtained.

The present invention has been made in view of the above points, and it is possible to obtain crushed particles having a desired particle size different in particle size with a single crusher, and the lining of a crusher or a crushing hammer due to long-term use. An object of the present invention is to provide a crushing particle size adjusting device for a vertical crusher that can cope with wear and extend the repair cycle for dealing with wear.

[0005]

In order to achieve the above object, in the present invention, as a first invention, a crushing unit is built in, a supply unit and a drive unit are provided in an upper portion, and a discharge unit is provided in a bottom portion. A vertical crusher equipped with a crushing unit in which blades and crushers are alternately supported between a mounting shaft hung on an upper mounting plate and a mounting shaft erected on a lower mounting plate. A pair of adjusting plates that are installed along the inner peripheral wall of the case body in a substantially horizontal position with the lowermost shredder in the above-mentioned shredding unit, and a front-back reciprocating means for moving the above-mentioned respective shuffling plates back and forth. A crushing particle size adjusting device for a vertical crusher characterized by the above.

As a second invention, the vertical crushing according to the first invention is such that the adjusting plate is substantially L-shaped in a plan view, and the inside of the long side and the outside of the short side are in slidable contact with each other. It was used as a crushing particle size adjusting device.

Further, as a third aspect of the invention, there is provided a vertical crusher according to the first aspect of the invention, wherein the adjusting plate has a substantially U-shaped outer shape in a plan view, and a guide plate is provided opposite to the joining portion of both adjusting plates. A crushing particle size adjusting device was used.

Further, as a fourth invention, the crushing particle size adjusting device for the vertical crusher according to the first invention is characterized in that the space formed by the opposing adjusting plates is circular.

As a fifth invention, the crushing particle size adjusting device for a vertical crusher according to the first invention, wherein the space formed by the opposing adjusting plates is polygonal.

Next, as a sixth invention, the crushing particle size adjusting device for a vertical crusher according to the first invention, wherein the front-rear reciprocating means is a pressure cylinder.

Subsequently, as a seventh invention, the crushing particle size adjusting device of the vertical crusher according to the first invention, wherein the forward-backward reciprocating means is a feed screw, is used.

[0012]

In the embodiment of FIG. 3, the adjusting panel 2 of the first embodiment is shown.
2a, 22a, or the adjusting panel 22f of the second embodiment shown in FIG.
By advancing 22f, the distance between the crushing element 20a at the bottom of FIG. 2 and the inner surface of the adjusting plate is shortened, and the particle size of the crushed object passing through is reduced. In addition, the adjustment panel 22 of the first embodiment example
a, 22a or the adjusting plates 22f, 22f of the second embodiment are retracted, the distance between the crusher 20a at the lowermost stage and the inner surface of the adjusting plate is expanded, and the particle size of the crushed object passing through is increased.

[0013]

Embodiments of the crushing particle size adjusting device for a vertical crusher according to the present invention will be described below in detail with reference to the drawings. FIG. 1 is a sectional view showing a vertical crusher incorporating a crushing particle size adjusting device for a vertical crusher according to the present invention. In FIG. 1, a vertical crusher incorporating a crushing material feeder according to the present invention is mounted on a machine base 1 and a crushing case unit A, a discharge unit B attached to a lower surface of the machine base 1,
Main components of the crushing unit C built in the crushing case unit A, the drive unit D whose main part is mounted on the case main body 2, and the supply unit E arranged on the upper side of the case main body 2. Is configured.

Crushing case unit A mounted on the machine base 1
Is a case body 2 having an inverted truncated cone shape on the upper side and a cylindrical shape on the lower side.
A protruding plate 3 vertically arranged on the inner circumferential wall surface of the case body 2 at required intervals, a reinforcing rib 4 provided around the outer peripheral surface of the case body 2, and a ceiling for closing the upper surface of the case body 2. Board 5
It consists of A hole 2a for communicating with the supply unit E is opened at an upper part of one side of the case body 2.

A discharge unit B attached to the lower surface of the machine base 1
Is the discharge rotor 16 supported on the lower end of the crushing rotor shaft 15 of the drive unit D and the discharge rotor 1 on the lower surface of the machine base 1.
The delivery room 17 accommodates 6 and a delivery room 18 provided from one side of the delivery room 17 to the bottom.

The discharge rotor 16 of the discharge unit B has a delivery plate 16a formed on one side thereof, and by its rotation, crushed pieces (not shown) are delivered from the delivery port 17a to the discharge chamber 18. In the delivery room 17, a gap 17b for dropping the crushed pieces from the bottom of the case body 2 is opened, and a discharge port 17a communicating with the discharge room 18 is opened on the lower surface. The discharge room 18 is a chamber that can temporarily store the crushed crushed pieces, and a lid 18a is provided on the lower surface so as to be openable and closable.

The crushing unit C comprises the blades 1 arranged in stages.
9 and a crusher 20 disposed between the stepped blades
And a mounting plate 21 for axially supporting the blade 19 and the crusher 20 above and below, and a crushing particle size adjusting device 22. The blades 19 of the crushing unit C are arranged at predetermined intervals so that the crusher 20 can rotate, and various shapes such as a disk type, a square cut corner, and a disk type with an overhanging plate are used depending on the type of the crushed object. It

Crusher 20 for crushing iron scraps and industrial wastes
Has an uneven surface formed as necessary, is loosely inserted into the mounting shaft 29, and cooperates with the projecting plate 3 of the crushing case unit A,
The supplied crushed material is cut and crushed. Blades 19 arranged in a row and shredders 2 arranged between the blades 19
As for the mounting plate 21 that vertically supports 0, the mounting shaft 29 is vertically provided by the upper mounting plate 21, and the mounting shaft 29 is vertically provided by the lower mounting plate 21.

The crushing particle size adjusting device 22 is a crushing unit C.
Adjustment plates 22a, 22a installed along the inner peripheral wall of the case body 2 in the same horizontal position as the lowermost crusher 20a in
And a hydraulic cylinder 22b as a forward / backward reciprocating means for moving the adjusting plates 22a, 22a forward and backward.

FIG. 3 shows the adjusting plate 2 of the crushing particle size adjusting device 22.
It is a top view which shows an example of 2a, 22a. In FIG. 3, the adjusting boards 22a, 22a are substantially L-shaped in an inner surface half polygonal shape in a plan view, and the insides of the long sides 22c and the outsides of the short sides 22d are slidably contactable with each other. Further, both adjusting boards 22a, 22a are connected to the rods 22e, 22e of the pair of hydraulic cylinders 22b, 22b on the back surface.

FIG. 4 shows the adjusting plate 2 of the crushing particle size adjusting device 22.
It is a top view showing other examples of 2f and 22f. In FIG. 4, the adjusting plates 22f and 22f are plate-shaped with a semicircular inner surface and a rectangular outer shape in plan view, and each pair of feed screws 22g and 22f on the back surface.
It is connected to g. The base end side of the feed screw 22g is a gear box 22 for decelerating the feed screw 22g.
It is connected to the rotary drive mechanism of h. Adjustment panel 22f, 2
Guide plates 22i, 22i are provided opposite to each other on the outer side of the meeting portion of 2f. The adjusting plate and the front-back reciprocating means are not limited to those in the above embodiment.

Then, the adjusting panels 22a, 22 of the first embodiment.
a or by advancing the adjusting plates 22f, 22f of the second embodiment, the distance between the lowermost shredder 20a and the inner surface of the adjusting plate is shortened, and the particle size of the crushed object passing through is reduced. Further, by retracting the adjusting plates 22a, 22a of the first working example or the adjusting plates 22f, 22f of the second working example, the distance between the shredder 20a at the lowermost stage and the inner surface of the adjusting plate is expanded, and the crushed objects passing therethrough are crushed. Increase the particle size of the product.

The drive unit D, the main part of which is mounted on the case body 2, includes a drive tower 23 in which a motor, a speed reducer, a rotation control device, etc. are built in, and a crushing rotor shaft connected to the output shaft of the drive tower 23. 15, a bracket 24 attached to the upper portion of the crushing rotor shaft 15, and a bearing 25 that supports the lower end of the crushing rotor shaft 15. The bracket 24 attached to the upper portion of the crushing rotor shaft 15 is connected to the mounting plate 21 above the crushing unit C and transmits rotation.

The supply unit E for supplying iron scraps and industrial wastes to the crushing case unit A pushes the charging case 26 into which iron scraps and industrial wastes are charged and the crushed material that has been charged into the crushing case A side. It is composed of a feeder 27 and a slide door 28 that opens and closes the foreign matter discharge port and the inspection port.

The loading case 26 into which crushed materials such as iron scraps and industrial wastes are loaded has a loading port 26a entirely opened on the upper surface, and a feeder case on the upper bottom portion inclined downward to the crushing case unit A side. 26b is provided, and a foreign matter discharge port / inspection port 26c is opened in the lower part thereof, and a supply port 26d communicating with the hole 2a of the case body 2 is opened.

The feeder 27 is a cylinder 27a for a feeder, which is pivotally supported by a shaft support plate 27d in the middle of a feeder case 26b projecting upward from the upper portion of a bottom plate inclined downwardly of the input case 26 and protruding outside the case. The rod 2
A feeder block 27c is connected to the tip of 7b. A feeder block case that protects the stretched rod 27b from the thrown-in crushed object is continuously provided on the rear upper surface and both sides of the rear of the feeder block 27c. Two pairs of rollers 27e are axially supported on both sides of the feeder block case. Then, the crushing equipment such as iron scraps and industrial wastes thrown into the throwing case 26 is forcibly pushed and supplied to the case body 2 side. By controlling the supply from the feeder 27 according to the load of the crusher, it is possible to prevent the crusher from stopping due to excessive supply, and the crusher power is operated up to the full rating, which is efficient.

The slide door 28 for opening and closing the foreign matter discharge port / inspection port 26c is slidably arranged on the inclined bottom surface of the charging case 26 and is fixed on the extension line of the inclination. Is connected to the tip of. Then, during the crushing of the vertical crusher, foreign matter which cannot be crushed is mixed, and the lower abdomen of the charging case is opened / closed in order to discharge the foreign matter and facilitate maintenance / inspection.

When the object to be crushed does not flow smoothly in the feeder of the vertical crusher having the above structure, the feeder 27 is operated to feed the object to be crushed into the case body 2. That is, when the rod 27b of the feeder cylinder 27a is advanced, the feeder block 27c connected to the tip of the rod 27b forcibly sends the crushed material along the bottom surface of the charging case 26 toward the hole 2a of the case body 2. .

[0029]

As described above, the crushing particle size adjusting device of the vertical crusher according to the present invention is installed opposite to the lowermost crusher of the crushing unit along the inner peripheral wall of the case body in a substantially horizontal position. A pair of adjusting boards and a driving means for moving the adjusting boards forward and backward, and by moving the adjusting boards forward and backward, the gap between the mounting plate and the adjusting board becomes narrower or wider, and the crushed object Is determined. Therefore, a single crusher can obtain crushed particles of different particle sizes having desired particle sizes, and can cope with long-term wear of the crusher lining, a crushing hammer, and the like, and can extend the wear-handling repair cycle.

[Brief description of drawings]

FIG. 1 is a sectional view showing a vertical crusher in which a crushed grain adjusting device for a vertical crusher according to the present invention is incorporated.

FIG. 2 is an enlarged cross-sectional view showing a main part.

FIG. 3 is a plan view showing a main part.

FIG. 4 is a front view showing a main part of another example.

FIG. 5 is a sectional view showing an example of a conventional vertical crusher.

[Explanation of symbols]

 A: Crushing case unit B: Ejecting unit C: Crushing unit D: Driving unit E: Supply unit 1 ... Machine base 2 ... Case body 2a ... Hole 3 ... Projection plate 4 ... Reinforcing rib 5 ... Top plate 15 ... Crushing rotor shaft 16 ... Discharge rotor 16a ... Delivery plate 17 ... Delivery room 17a ... Outlet port 17b ... Gap 18 ... Discharge room 18a ... Lid 19 ... Blade 20 …… Crusher 21 …… Mounting plate 22 …… Crush particle size adjusting device 22a, 22f …… Adjustment panel 22b …… Hydraulic cylinder 22c …… Long side 22d …… Short side 22e …… Rod 22g …… Feed screw 22h …… Gear box 23 …… Drive tower 24 …… Bracket 25 …… Bearing 26 …… Batch case 26a …… Batch port 26b …… Feeder case 26c …… Foreign matter discharge port and inspection port 26d ・ ・ ・… Supply port 27 …… Feeder 27a …… Feeder cylinder 27b …… Rod 27c …… Feeder block 27d …… Shaft support plate 27e …… Roller 28 …… Slide door 28a …… Slide door cylinder 28b …… Rod 29 ... ... Mounting axis

Claims (7)

[Claims] 1. A vertical crusher having a crushing unit built-in, a supply unit and a drive unit at the top, and a discharge unit at the bottom. A crushing unit that alternately supports blades and crushers is provided between the mounting shafts that are erected on the mounting plate, and along the inner peripheral wall of the case body in the horizontal position and the lowermost crusher in the above crushing unit. A crushing particle size adjusting device for a vertical crusher, comprising: a pair of adjusting plates provided opposite to each other and a front-back reciprocating means for advancing and retracting each of the above adjusting plates. 2. The vertical crusher according to claim 1, wherein the adjusting plate has a substantially L-shape in a plan view, and the inside of the long side and the outside of the short side are in slidable contact with each other. Crushing particle size controller. 3. The crushing particle size of the vertical crusher according to claim 1, wherein the adjusting plate has a substantially U-shaped outer shape in a plan view, and a guide plate is provided opposite to the joining portion of both adjusting plates. Adjustment device. 4. The crushing particle size adjusting device for a vertical crusher according to claim 1, wherein a space formed by the opposing adjusting plates is circular. 5. The crushing particle size adjusting device for a vertical crusher according to claim 1, wherein a space formed by the facing adjusting plates is polygonal. 6. The crushing particle size adjusting device for a vertical crusher according to claim 1, wherein the front-back reciprocating means is a pressure cylinder. 7. The crushing particle size adjusting device for a vertical crusher according to claim 1, wherein the front-back reciprocating means is a feed screw.