JPS5924365Y2 - Internal opening and closing device of shear type crusher - Google Patents

Description

[Detailed description of the invention] This invention relates to the internal opening/closing device of a shear-type crusher, and in particular, by changing the screen from the conventional sliding drawer type to a pivot type, maintenance of not only the inside but also the screen can be maintained. In addition, the discharge guide cover provided around the outside of the screen to guide the discharged material from the screen to the discharge port at the bottom can be freely opened as a pivot type like the screen. The purpose is to ensure that internal inspections can be carried out more reliably.

In order to achieve such an objective, in the present invention, a rotary blade with a cutting edge on the outer periphery is installed in a crushing housing, and a fixed portion corresponding to the cutting edge of the rotary blade is installed in the crushing housing at a position higher than the axis of the rotary blade. A blade is provided, and a screen for particle size control divided into front and rear parts is provided at the front and back of the outer periphery of the rotary blade, and a screen for guiding the discharged material from the screen to the lower discharge port is provided around the outer periphery of the screen. In a case where the cover for the discharge guide section is provided as a front and rear split type, hinges are provided at the front and rear of the screen abutment provided at the center of the discharge port, and the lower end sides of each of the front and rear screens are connected to the hinges. Each screen can be opened and closed from the front and back using hinges as fulcrums, and the upper end of each screen is removably connected to the crushing housing on the side that has the fixed blade, and the front and rear discharge guides Each lower end side of the discharge guide cover is connected to another hinge provided on the fixed side on each front and rear outer side of the hinge, and each discharge guide cover can be opened and closed front and rear separately using the other hinge as a fulcrum. The present invention provides an internal opening/closing device for a shear type crusher characterized by the following.

This invention will be explained below with reference to illustrated embodiments.

What is shown in FIGS. 1 to 5 is a shearing type crusher mainly intended for film sheets, and of course it is free to use it for other purposes.

Reference numeral 1 denotes a power case having a drive motor 2 therein, and a pedestal 3 is installed on one side of the case 1.

In this way, the crusher body 4 is mounted and fixed on the pedestal 3, and the power from the drive motor 2 is introduced from one end thereof via the pulley 5.

In the crusher main body 4, reference numeral 6 denotes a rotating main shaft, and a rotary blade 7 is formed on the outer periphery of the main shaft 6, and a plurality of cutting edge blades 8 are provided on the outer periphery of the rotary blade 7 so as to be detachable and movable back and forth. .

On the other hand, the crushing nozzle/Using 9 that constitutes the fixed side of the main body
has a charging body 11 for the charging port 10 at the center of the upper end, and integrally formed mounting plates 12, 12 which are inclined in an inverted V shape from the lower end of the body 11 toward the front and back, respectively. A fixed blade 14.14 with a movable bolt 13 is fixed inward through a set pole 15.15 and an elongated hole 16 on the bottom surface.

In this case, the fixed blades 14, 14 are set higher than the center of the rotating main shaft 6.

On the other hand, on both sides of the crushing housing 9 in the axial direction, as shown in FIG. Bearing cases 19 and 19 are fitted through bearing cases 18 and 18, and pressure receiving flanges 20 fixed to both ends of the rotating main shaft 6 supported through the bearing cases 19 prevent fine powder, mud, etc. from entering the bearing side. prevent the intrusion of

Reference numeral 22 denotes a screen support, which is provided at the center of the discharge port 21, and is integrally installed parallel to the axial direction of the rotating main shaft 6 at the central lower end of the front and back of the crushing housing 9, as shown in FIG.

The upper front and back walls of the screen support 22 are formed in a cross-sectional shape, and the receivers are provided with grooves 23 at the front and rear, and hinges 24 are attached to the lower portions of the front and rear walls of the screen support 22.

In this embodiment, the plate 24A of the hinge 24 is the bolt 24.
The hinge 24 is attached in the same direction as the axial direction of the rotation main shaft 6.

Reference numeral 25 denotes a pair of front and rear screens, each of which is a band plate having an arc-shaped cross section and is provided with a large number of particle size control holes 25a.

Each of the screens 25 is provided with strip-shaped flanges 26 and 27 projecting outward at the upper and lower portions, and each of the lower flanges 27 is connected to the screen by means of a pole (31A) fitted in the groove 23. The screen 25 can be detachably attached to and fixed to the support base 22, and another plate 24B of the hinge 24 is attached to the lower flange 27 with bolts 24D, and the lower end side of the screen 25 is connected to the hinge 24 here.

Each of the upper flanges 26 is detachably connected to the crushing housing 9 on the side having the fixed blade 14 by bolts 31.

In this embodiment, an upper flange 26 is superimposed on the fixed blade 14 and connected to the mounting plate 12 by bolts 31.

At this time, since the fixed blade 14 is fixed by the set bolt 15, the bolt 15 is attached to the upper flange 26.
A through hole 26A is formed to accommodate the head of the head.

Reference numeral 28 denotes a vertical reinforcing plate, which is fixed to the left and right ends of each screen 25 in an outwardly projecting shape, and is an arcuate strip plate that roughly follows the cross-sectional shape of the screen 25. The upper and lower ends of this reinforcing plate 28 are connected to the flange 26. It is fixed to .27.

A handle rod is installed between the left and right reinforcing plates 28.

30 is a screen stopper, which is a bar member connected to each of the lower flanges 27 via a pin 30A, and the lower end face of the screen 25 is stopped.

Reference numeral 32 denotes a cover for a discharge guide section, which is a front and rear split type disposed on each outside of the screen 25, that is, on the front and rear sides, and serves as a guide section for guiding the discharge material from the screen 25 to the discharge port 21 at the bottom. This is a cover for 32A.

The lower end side of each of the covers 32 is connected to another hinge 34 provided as a pair of left and right hinges on the fixed side on the front and rear and outer sides of the hinge 24, in this example, on the upper part of the pedestal 3, using the hinge 34 as a fulcrum. The cover 32 can be opened and closed separately at the front and rear.

Reference numeral 33 is a handle for opening and closing the discharge guide cover 32.

In addition, as shown in Figure 3, V is connected between the screen stops 30 and 30.
The purpose of chamfering the mold is to prevent the tip 35 from interfering with the lowest point when the screen 25 is opened.

Further, as shown in FIGS. 1 and 2, the pedestal 3 is equipped with a discharge communication tube 36 that communicates with the discharge port 21, and a predetermined pulverization is carried out through an orthogonal duct tube 37 that communicates with the communication tube 36. The material is sucked by a blower 38 and guided to the next step, where 39 is an air filter, 40 is an air volume control damper, and 41 is a feed rate control damper.

Furthermore, as for the rotary blade 7, the fine grinding type shown in FIG. 5 may be adopted, and at the same time, the slanted type inlet 10 shown in FIG. 5 may be configured instead of the straight type inlet 10 in FIG. 3. .

Next, we will explain how to open and close the inside.

When the holes 25a in the screen 25 become clogged, the front and rear of the screen 25 can be opened by grasping the handle 33 and opening the discharge guide cover 32 outwardly in both the front and back using the hinge 34 at the lower end as a fulcrum. With the outer side open, it is possible to check for clogging and remove the clogged portion.

In this case, since the lower end of the cover 32 is connected to the fixed side by the hinge 34, there is no need for a storage space as in the case where the cover slides, and moreover, it is easy to return to the old position after work such as removing clogging. That is, it can be closed very quickly.

Furthermore, when inspecting or repairing internal parts and members such as the rotary blade 7, etc., the cover 32 is attached to the hinge 34 as described above.
This is done by opening the screen 25 at the same time as the fulcrum.

That is, the screens 25 can be opened by removing the bolts 31 to attach the upper flange 26, and by removing the bolts 31A to attach the lower flange 27 to the screen support base 22. Can be opened to and without, each screen 2
5 remains connected to the screen support 22 with the hinge 24 at its lower end, and is placed on top of the previously opened cover 32 and opened using the hinge 24 as a fulcrum, and in this open state internal inspection is carried out. , parts are replaced, etc., and the desired work (maintenance) is completed, the screen 25 is closed and fixed in the reverse manner described above, the cover 32 is closed, and the grinding work can be carried out. Noise can be prevented from leaking by the cover 32.

In summary, in the present invention, both the cover for the discharge guide section and the screen can be freely opened and closed around the hinges on the lower end side, thereby eliminating the disadvantages of the conventional sliding drawer method.

In other words, the screen is made to be quite strong so that it can sufficiently handle the load caused by the rotation of the rotary blade, making it a very heavy item. This makes it extremely easy to open and close the screen, which is especially effective in large crushers.
After opening, the Sufunone is opened and supported downwards, which eliminates the trouble of having to store the removed screen in a place other than the crusher, which was the case in the past. In some cases, as in the above-mentioned embodiments, the center of the device can be placed in a state where it is easy to work, and an improvement in maintainability can be expected.

[Brief explanation of the drawing]

Figure 1 is a front view of the entire crushing device showing an example of this invention.
Fig. 2 is a side view, Fig. 3 is a sectional view taken along line III in Fig. 1, Fig. 4 is a sectional view taken along line I-IV in Fig. 2, and Fig. 5 is a longitudinal sectional view when adopted in a pulverizer. It is. 7...Rotating blade, 9...Crushing housing, 14...Fixed blade, 21...Discharge port,
25...Screen, 32...Ejection guide cover, 35...Blade tip.

Claims (1)

[Scope of utility model registration request] A rotary blade with a cutting edge on the outer periphery is installed in the crushing housing, and a fixed blade corresponding to the cutting edge of the rotary blade is provided in the crushing housing at a position higher than the axis of the rotary blade, A screen for particle size control divided into front and rear parts is provided at the front and rear of the screen, and a cover for the discharge guide part is provided around the outer periphery of the screen to guide the discharged material from the screen to the lower discharge port. In the deployed model, hinges are provided at the front and rear of the screen support set in the center of the outlet, and the lower ends of the front and rear sufunons are connected to the hinges, allowing each screen to open and close separately, front and rear, using the hinges as fulcrums. Further, the upper end side of each screen is detachably connected to the crushing housing on the side having the fixed blade, and the lower end sides of the front and rear discharge guide covers are attached to the front and rear sides of the hinge. The inside of a shearing type crusher, characterized in that it is connected to another hinge provided on the fixed side on the outside, and each cover for each discharge guide part can be opened and closed separately in the front and back using the other hinge as a fulcrum. Switchgear.