KR20040021152A - Apparatus for dismantling the cushion part of shaft fixing the lower screen of concentrating machine - Google Patents

Abstract

PURPOSE: A cushion dissembling apparatus of a fixing axis portion of a lower screen of a particle size grader is provided to make it more convenient to take out several fixing axis portions, reduce working load and enable a stable working. CONSTITUTION: The apparatus comprises: a cushion sleeve dissembling portion consisting of a fixing axis(33) with a through hole of which the center portion is penetrated by a cylinder axis(30-1), first and second puller blades(32,32-1) inserted into and mounted to the upper and lower parts of the puller fixing axis(33), a U-shaped puller supporting axis(40) fixed to the center part of the puller fixing axis(33) and a hydraulic cylinder(30); and a hydraulic feeding portion consisting of a hydraulic feeding inlet(34) additionally disposed to the hydraulic cylinder(30), a flexible hydraulic hose(35), a hydraulic feeder(39) and a hydraulic feeding lever(36).

Description

Cushion release device for the bottom screen fixed shaft part of the particle size separator {APPARATUS FOR DISMANTLING THE CUSHION PART OF SHAFT FIXING THE LOWER SCREEN OF CONCENTRATING MACHINE}

The present invention relates to a cushion disassembling device for the bottom screen fixed shaft part of the particle size sorter, and more particularly, when cleaning the fixed light attached to the bottom mat of the fixed shaft number fixing the bottom screen mat of the size sorter or during maintenance work. It relates to a cushion dismantling device of the fixed size bearing part of the bottom screen of the particle size sorter which can work more safely and safely while reducing the workload.

Generally, the particle size sorter has a plurality of screen mats 11 and 12 as shown in FIGS. 1 and 2, and its internal structure includes an upper screen mat 11 part and a lower screen mat 12. Divided into.

The plurality of mat shafts 25 mounted in the width direction of the lower screen mat 12 are fixed outside the main body shell 1 of the particle size separator.

When the fixing part is fixed only by the bolt 27-1, the fixing part of the mat shaft 25 is provided with a fixed shaft bearing cushion 27 in the fixing part of the mat shaft 25 because the fixing part is broken due to the vibration generated while selecting the raw material in the particle size sorter.

In the related art, in order to dismantle the fixed shaft cushion 27, all were removed using a chain block (not shown).

Therefore, the above-mentioned prior art has the following problems.

First, due to blast furnace operation, it is necessary to draw out the lower mat quickly for maintenance and repair work. However, disassembling the cushion 27 with a chain block is not only excessively new, but also by manual labor. There was a problem with safety.

Second, by using a large hammer (hammer) by using an appropriate air hole without using the chain block, bringing a deformation to the bearing cushion 27 to the mat shaft 25 itself is good maintainability to replace the entire bottom mat There were some problems.

In order to solve the above problems, the present invention provides a more convenient and workload when the fixed shaft bearing part for fixing the bottom screen mat of the particle size sorter is removed to the outside when cleaning the fixed light attached to the bottom mat or during maintenance work The purpose of the present invention is to provide a cushion disassembly device for the bearing part of the particle size selector that can work safely and safely.

1 is a schematic side cross-sectional view showing the upper and lower screen positions of the particle size selection device;

2 is a cross-sectional view of the bottom screen cushion bearing part of the raw material particle size separator according to the prior art;

Figure 3 is a cross-sectional view of the overall configuration of the particle size separator bottom screen fixed shaft bearing cushion release device according to the present invention;

Figure 4 is a detailed view showing a puller blade constituting the particle size separator bottom screen fixed shaft bearing cushion release device according to the present invention;

Figure 5 is a detailed view of the bearing part constituting the particle size separator bottom screen fixed bearing part cushion release device according to the present invention;

Figure 6 is a detailed view of the bracket plate constituting the particle size separator bottom screen fixed bearing part cushion release device according to the present invention.

♣ Explanation of symbols for main part of drawing ♣

30-1: Cylinder shaft 33: Puller fixed shaft number 32: First puller blade

32-1: 2nd puller blade 40: U type puller support shaft 30: Hydraulic cylinder

34, 34-1: Hydraulic feed hole 35: Flexible hydraulic hose 39: Hydraulic feeder

36: Hydraulic supply lever

In order to achieve the above object, the present invention is a device for disassembling the cushion sleeve of the lower screen mat shaft of the particle size selector, the puller fixed shaft number formed with a through hole through which the cylinder shaft penetrates in the center, and is inserted into the upper and lower parts A U-shaped puller support shaft having a through hole formed at the center of the puller blade and the second puller blade, the center of the puller fixing shaft, and a cylinder shaft passing through the central through hole of the puller fixing shaft, and fixed to the outer surface. A cushion sleeve dismantling unit formed of a hydraulic cylinder; A hydraulic supply unit comprising a hydraulic supply port attached to the hydraulic cylinder constituting the cushion sleeve dismantling unit, a flexible hydraulic hose connected thereto, a hydraulic supply unit attached to the hydraulic supply port connected to an end thereof, and a hydraulic supply lever operating the same. It provides a particle size sorter bottom screen fixed shaft bearing cushion release device characterized in that the configuration.

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

Figure 3 is a cross-sectional view of the overall configuration of the particle size separator bottom screen fixed shaft bearing cushion release device according to the present invention, Figure 4 is a detailed view showing the puller blade constituting the particle size separator bottom screen fixed shaft bearing cushion release device according to the present invention. 5 is a detailed view of the bearing part of the particle size separator lower screen fixed shaft portion cushion release device according to the present invention, Figure 6 is a detail of the bracket plate constituting the particle size separator bottom screen fixed shaft portion cushion release device according to the present invention. It is also.

Referring to the structure of the bottom screen of the particle size selector 50 according to the present invention.

In order to dismantle the fixed shaft cushion 27, the hydraulic cylinder 30 is installed vertically as an operating power source.

A hydraulic supply port 34 is formed in the hydraulic cylinder 30, and a connection union 30 is inserted therein.

In order to disassemble the bearing cushion 27 of the screen mat to the outside centering on the hydraulic cylinder 30, the fixed shaft bearing 33 is pulled in the 90 ° direction with the cylinder shaft 30-1 of the hydraulic cylinder 30. Is attached to the outside of the cylinder 30,

Two puller blades 32 and 32-1 are inserted into upper and lower portions of the puller fixed shaft 33 to be mounted.

The two puller blades 32 and 32-1 are inserted into upper and lower portions of the puller fixed shaft 33 in insertion holes 32-3 formed therein, and then the puller fixed shaft 33. It is to be stably fixed by inserting the escape prevention safety pin into the insertion hole (33-1) formed in the.

End portions of the puller blades 32 and 32-1 are rounded with a “L” shaped fastening part, so that the outer shape of the sleeve of the existing screen size bearing cushion 27 is reduced.

In addition, when dismantling the sleeve of the particle size sorter lower screen mat bearing cushion 27, it is preferable to be partially made of special steel and subjected to partial heat treatment.

The cylinder shaft 30-1 of the hydraulic cylinder 30 has a support shaft 40 having a “U” shape fixedly supported around the lower mat cushion portion outside the main body of the particle size selector around the puller fixed shaft number 33. It is fixedly installed to be perpendicular to the mounting state of the puller blades (32, 32-1) in the portion, is coupled by a screw thread is configured to be capable of 360 degrees forward and reverse rotation.

In order to disassemble the screen separator bearing cushion 27 of the particle size separator, the hydraulic feeder 39 extends the hydraulic flexible hose 35 to the hydraulic feed hole 34 by a predetermined length and is coupled to the coupling union 34-1. .

The hydraulic supplier 39 has a lever 36 for manually pumping pressure and a relief valve capable of manually venting hydraulic pressure from the hydraulic supplier 39 when the cushion sleeve 27 is dismantled. (Relief Valve; 38).

Hereinafter, the operation of the present invention will be described in detail.

The present invention is applied when the inspection of the lower screen mat 12 of the particle size selector during the operation of the blast furnace, or when there is an abnormality in the main body withdrawn to the outside.

First, a plurality of mat shafts 25 are provided at regular intervals around the lower screen mat 12 in a state where the particle size separator main body is stopped.

The mat shaft 25 has a fixed bolt 27-1 in the middle of a cushion sleeve 27 for absorbing a constant shock and vibration by fixing the shaft number on both sides of the screen main body shell 1 outside. After dismantling, the lower and lower L-shaped portions of both sides of the first and second puller blades 32 and 32-1 constituting the present invention are formed on both sides of the cushion sleeve 27. Insertion is made to fit the outer shape of the bearing sleeve 27 of the retaining cushion to maintain a constant tension.

When the device according to the present invention is mounted as described above, since the first and second puller blades 32 and 32-1 inserted into both sides of the puller fixing shaft 33 may be detached, the safety pin insertion hole 33-1 is possible. Insert the safety pin (33-2) into the

In the above process, the puller support shaft 40 should be as close as possible to the main body shell 1 of the particle size selector so that there is no problem of centering being disturbed due to balls, play, etc. due to emergency hydraulic operation.

Then, the flexible hydraulic hose 35 is connected between the hydraulic supply port 34 attached to the head of the hydraulic cylinder 30 and the hydraulic supply port 34-1 attached to the hydraulic supply 39.

When the power source supply system is connected as described above, when the lever 36 attached to the hydraulic supplier 39 is repeatedly moved up and down several times, the hydraulic cylinder 30 is connected to the hydraulic cylinder 30 through the flexible hydraulic hose 35. While being transmitted to the puller support shaft 40, the puller blade 32 has a repulsive force acting against the puller blade 32 while pushing the steel bar 1 of the particle size selector body, thereby cushioning the sleeve 27 of the lower screen mat shaft 25. Is dismantled to the outside

In order to dismantle the opposite shaft again, the already applied hydraulic pressure should be made to “0”. When the relief valve 38 attached to the head of the hydraulic feeder 39 is gradually turned to the left side, the pressure returns to the hydraulic feeder 39. It is returned to the main body, and reconstruction work is possible.

As described above, due to the blast furnace operation, the lower mat must be taken out quickly for maintenance and repair work.However, the disassembly of the cushion device with the chain block is not only excessively new, but also manual work. Although there was a problem in the quality of maintenance, according to the present invention, several fixed shafts for fixing the bottom screen mat of the particle size sorter are more convenient and more convenient when drawing out the fixed light attached to the bottom mat or when it is taken out during maintenance work. There is a practical effect to work safely and lightly.

Claims (4)

In the device for disassembling the cushion sleeve of the lower screen mat shaft of the particle size sorter, A puller fixed shaft number 33 having a through-hole 33-2 through which the cylinder shaft 30-1 penetrates in the center portion thereof, and a first puller blade 32 and a second puller blade 32-inserted in upper and lower portions thereof; 1), a U-shaped puller support shaft 40 having a through hole 40-1 formed in the center while being fixed to the center portion of the puller fixing shaft 33, and a central through hole 33 of the puller fixing shaft 33. Cushion sleeve disassembly part consisting of a hydraulic cylinder (30) is passed through the cylinder shaft (30-1) is fixed to the outer surface portion -2); The hydraulic supply hole 34 attached to the hydraulic cylinder 30 constituting the cushion sleeve dismantling part, the flexible hydraulic hose 35 connected thereto, and the hydraulic supply hole 34-1 connected to the end thereof are installed. Particle size separator lower screen fixed shaft bearing cushion release device, characterized in that consisting of a hydraulic supply consisting of a hydraulic supply (39), and the hydraulic supply lever 36 for operating the same. The method of claim 1, The puller blades (32, 32-1) of the particle size selector bottom screen fixed shaft bearing portion disassembly characterized in that it is inserted into the upper and lower portions of the puller fixed shaft number 33 so that the size of the base material to be dismantled variable width adjustable Device. The method of claim 1, The puller support shaft 40 is a particle size sorter lower screen fixed shaft bearing cushion dismantling device, characterized in that coupled to the screw form to enable a 360-degree reverse rotation in the center of the puller fixed shaft number (33). The method of claim 1, The puller fixing shaft 33 has upper and lower insertion holes 33-1 through which safety pins for fixing the first puller blade 32 and the second puller blade 32-1 are inserted. Cushioned device of the particle size separator bottom screen fixed shaft portion, characterized in that it becomes.