KR20040034851A - An apparatus for exchanging flange from grinder for grinding machine - Google Patents

Abstract

PURPOSE: A flange replacement device of a grinding wheel for a grinder is provided to relieve fatigue of a worker, to prevent accidents, and to improve maintenance efficiency by assembling and disassembling the flange for replacement with using power. CONSTITUTION: A flange replacement device is composed of a grinding wheel loading plate rotating on a base plate(5) by a motor and having grinding wheel support plates for holding plural grinding wheels(220); a trolley(42) moving back and forth on guide rails(36a,36b) by a motor(50), and moving the grinding wheel from the grinding wheel loading plate with a grinding wheel support plate; a grinding wheel fixing part(60) having a support plate(100) arranged in the trolley, a pin inserted to the grinding wheel with moving up and down in the lower part of the support plate, a geared motor driving the pin, a worm decelerator, and a geared motor horizontally moving the geared motor and the worm decelerator; a hoist(136) arranged at the side of the grinding wheel fixing part to lift up flanges(210) from the grinding wheel; and a flange holder(130) arranged at the side of the hoist and composed of plural blanks(132) placing the flanges. The flanges are assembled and disassembled from the grinding wheel with power.

Description

Flange changer for grinding wheel of grinding machine {AN APPARATUS FOR EXCHANGING FLANGE FROM GRINDER FOR GRINDING MACHINE}

The present invention relates to a device for disassembling the flange according to the disposal of the worn grindstone after use in a grinding machine (GRINDER), and assembling the flange to a new grindstone, more specifically to dismantle the flange from an old grindstone, By performing the work of fixing the flange by the power operation to reduce the fatigue of the maintenance worker, to prevent safety accidents, and to improve the flange change device of the grinding wheel grinding grinder to improve the maintenance efficiency.

In general, in hot rolling mills, the roll surface becomes rough because the back-up rolls and work rolls that make up the strip are in constant friction with the strip. Such back-up rolls and work rolls are removed from the rolling mill after a certain period of rolling work and subjected to surface grinding in a grinding machine. In this maintenance work, grinding of the surface of the roll is sharpened.

These grindstones are usually heavy, and after a certain period of time, the grindstones wear out, so that old grindstones must be replaced with new grindstones.

However, the grindstone is fixed through the flange, and in order to install a new grindstone in the grinding machine, the old grindstone is discarded by removing the flange from the worn grindstone, and the new grindstone is refitted to the flange for reuse.

As shown in FIGS. 7 and 8, the upper flange 205 having a disc shape and a corresponding disc has a cylindrical portion 212 extending to the central hole 222 of the grindstone 220. Lower flanges 210 provided on the side are coupled through a plurality of bolts 226 to have a configuration for narrowly supporting the grindstone 220 therebetween.

That is, the plurality of bolts 226 are screwed into the hole 214 of the lower flange 210 through the hole 207 of the upper flange 205 to fix the grindstone 220 therebetween.

Since the process of exchanging the flanges 205 and 210 in the grinding wheel 220 of such a structure is conventionally dependent on the manual labor of the worker, the fatigue of the worker is accumulated, the replacement time is high, and the heavy grindstone 220 during the replacement work. There are many problems such as the occurrence of safety accidents as the) is turned over to the worker side.

SUMMARY OF THE INVENTION The present invention has been made to improve the above-mentioned conventional problems, and its object is to wear or to remove a new whetstone from a flange or to combine it, if it is carried out by the power of the maintenance worker fatigue It is to provide a flange changer for grinding wheel grinding machine that can be improved, to prevent safety accidents and to improve maintenance efficiency.

1 is a perspective view of the flange exchange device of the grinding wheel grinding machine according to the present invention as a whole;

2 is an exploded perspective view showing a whetstone mounting plate, a bogie, a whetstone fixing part, and the like provided in a flange exchanger of a grinding wheel for grinding according to the present invention;

3 is an exploded perspective view showing a rotating cylinder and the like provided in the flange exchange device of the grinding wheel grinding machine according to the present invention;

4 is an exploded perspective view showing a hoist and a grindstone holder and the like provided in a flange exchanger of a grinding wheel for grinding according to the present invention;

Figure 5 is a cross-sectional view showing a coupling structure of the inner ring and outer ring of the ring gear provided in the flange exchange device of the grinding wheel grinder according to the present invention;

6 is an operating state diagram showing the overall operating relationship of the flange exchanger of the grinding wheel grinder according to the present invention;

7 is an exploded perspective view showing a coupling structure of a whetstone and a flange to which the present invention is applied;

8 is a cross-sectional view showing a coupling structure of a whetstone and a flange to which the present invention is applied.

<Description of the symbols for the main parts of the drawings>

5 .... Baseplate 7 .... Feet

10 .... Operation Panel 12 .... Motor

16 .... Gear 20 .... Ring Gear

22 .... inner ring 24 .... outer ring

30 .... Whetstone Support Plate 32 .... Whetstone Support Plate

34 .... Guideway 36a, 36b ... Guide

40 .... Rack 42 .... Balance

44 .... pinion gear 46 .... whetstone support plate

50 .... Motor 53 .... Cable Conveyor

60 .... Burr holder 64 .... Guide frame

68 .... screw shaft 70 .... coupling

72 .... geared motor 76 .... moving nut

78 .... Bracket 80 .... Geared Motor

82 .. Connecting plate 84 .... Worm reducer

86 .... Lift 90 .... Pin

94 .... mounting plate 96 .... bolt

100 .... Pedestal 102 .... Concave groove

104 .... incision 120 .... pivot

122 .... Upright Bracket 126 .... Whetstone Support Plate

130 .... Flange Mount 136 .... Hoist

137 .... pillar 205 .... top flange

220 .... Whetstone 222 .... Central hole

226 ... bolt

The present invention as a technical configuration for achieving the above object, in the apparatus for disassembling the flange in accordance with the disposal of the worn grindstone after use in a grinding machine (GRINDER), assembling the flange to a new grindstone,

A whetstone mounting plate rotatable by a motor on a base plate, the top surface of which is provided with whetstone support plates for mounting a plurality of whetstones;

It is provided with a plurality of guide rails extending from the grinding wheel mounting plate to one side, and can be moved forward and rearward by the operation of the motor on the guide rail, the upper surface is provided with a grinding wheel support plate loaded with the grinding wheel from the grinding wheel mounting plate Bogie to move the whetstone by a certain distance;

It has a support plate disposed on the other side of the bogie, and has a pin which is lowered from the bottom of the support plate to be inserted into the center of the grindstone, equipped with a geared motor and a worm reducer for driving the pin, the geared motor and the worm reducer Whetstone fixing unit having a geared motor for moving horizontally;

A hoist disposed on one side of the whetstone fixing part to lift the flanges with power from the whetstone; and

A flange holder disposed on one side of the hoist, a flange holder having a plurality of compartments on which the flanges are mounted, and configured to disassemble and assemble the flanges from the whetstone with a force of power; By providing a device.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. As shown in FIG. 1, the flange exchanger 1 of the grinding wheel grinder according to the present invention has a base plate 5 installed on the ground and a pit 7 formed on the lower side of the base plate 5, In the middle of the front surface of the base plate 5, the operating panel 10 is fixed to the floor of the workplace with a plurality of bolts (not shown).

2 and 5, the motor 12 is fixed to the wall of the pit 7 by the bracket 14 in an upright position, as shown in FIGS. 2 and 5. Gear 16 is fixed to the shaft of the motor 12 is in contact with the inner ring 22 of the ring gear 20 disposed on the upper surface of the base plate 5 to transmit the rotational force.

The ring gear 20 has its outer ring 24 fixed to the base plate 5 with a bolt 26, and the lower surface of the whetstone mounting plate 30 is fixed to the upper inner ring 22 of the ring gear 20. The ring gear 20 has a ring-shaped protrusion 22a formed on the outer circumferential surface of the inner ring 22, a tooth 22b is formed on the inner circumferential surface of the inner ring 22, and the protrusion () is formed on the inner surface of the outer ring 24. The outer ring 24 of the ring gear 20 is fixed by lubricating and lubricating by forming the slideable groove 24a by inserting the 22a), and the inner ring 22 is rotated by the operation of the motor 12 so that the grinding wheel is rotated. The mounting plate 30 is rotated.

The whetstone mounting plate 30 has a wedge-shaped cross-sectional structure having a plurality of whetstone support plates 32 on its upper surface, and the whetstones 220 are disposed in an upright position between the whetstone support plates 32, respectively. It can be positioned stably.

And, between the grindstone plate 30 and the floor of the workshop is provided with a guide passage 34 consisting of a cross section of the U-shape on the base plate (5) from the floor of the grindstone plate 30 to the grindstone mounting plate (30) It can be rolled and moved to help smooth detonation.

In addition, the guides 36a and 36b are fixed to the rear of the base plate 5 in two rows, and the rack 40 is fixed along one side guide 36a between the pinions gears of the bogie 42. 44) and gears are combined.

The trolley 42 has a b-shaped cross-sectional structure, in which a grinding wheel support plate 46 protrudes on both sides thereof, and a plurality of liners 48 are attached to the lower surface thereof so that the plurality of guides 36a and 36b are attached. The motor 50 is disposed vertically downward on one side of the trolley 42, and the pinion gear 44 is mounted on the rotational shaft of the motor 50, thereby gearing the gear 40 to the rack 40. do.

In addition, the cable conveyor 53 for providing power to the motor 50 is located on the rear side of the cart 42 to move power and signals to the motor 50 while moving in accordance with the forward and backward of the cart 42. It is.

Therefore, the trolley 42 receives the rotational movement of the pinion gear 44 of the motor 50 so that the trolley 42 moves forward and backward along the rack 40.

In addition, a grindstone fixing part 60 is disposed at the left side of the base plate 5, and the grindstone fixing part 60 has a base 62 disposed therein, and is seated in the pit 7, and a guide frame 64 is fastened by bolts (not shown), and a plurality of side-by-side guides 66a and 66b are respectively fixed to both sides of the guide frame 64, and a screw shaft 68 is disposed in the middle thereof. In addition, the screw shaft 68 is connected to the rotating shaft of the geared motor 72 by a coupling 70 to rotate, the geared motor 72 is a plurality of the one side of the guide frame 64 It is mounted with bolts (not shown) to rotate the screw shaft 68 forward and reverse.

The screw shaft 68 is mounted on the support rib 64a protruding from the guide frame 64 so as to be rotatable at both ends thereof through bearings (not shown), and a moving nut 76 is screwed in the middle thereof. Are combined. In addition, the movable nut 76 has a bracket 78 formed on the upper surface thereof and is screwed to the lower surface of another geared motor 80, the geared motor 80 is a plurality of liners 82 on the lower surface They are fixed to move on the guides 66a and 66b mounted on the guide frame 64.

That is, when the screw shaft 68 rotates forward and backward by the operation of the geared motor 72, the moving nut 76 moves forward and backward along the screw shaft 68 while simultaneously moving forward and backward of the geared motor 80. To achieve.

On the other hand, the worm reducer 84 is integrally mounted to one side of the geared motor 80 through the connecting plate 82 protruding to one side from the lower surface of the motor 80, the worm reducer 84 is a lifting shaft As the 86 is disposed vertically, the geared motor 80 and the worm reducer 84 are integrally moved forward and backward, and the rotational force of the geared motor 80 is transmitted through the coupling 88 of the worm reducer 84. The lifting shaft 86, which is transmitted to the input shaft and outputs the shaft, moves up and down.

In addition, the pin 90 is vertically installed at the upper end of the lifting shaft 86, so that the flange 205 (through holes 205a and 210a in the center of the flange 205 and 210, as will be described later). 210) to fix the role.

To this end, screw holes 92 are formed in the upper and lower ends of the pins 90, and a fixing plate 94 having a hole 94a is formed at the center of the upper part of the pins 90. The bolt 96 is disposed to penetrate the 94a so that the fixing plate 94 may be screwed to the upper end of the pin 90.

On the other hand, the upper plate of the worm reducer 84 and the geared motor 80, the base plate 5 is disposed so as to cover the pit (7), the cutout portion 5a formed in the center of the base plate 5 On the upper side of the pedestal 100 is fixed on the base plate 5 so as to cover the cutout 5a, the pedestal 100 has a concave groove 102 and a cutout 104 on its upper surface.

The concave groove 102 has a width, the size of which corresponds to the diameter of the lower flange 210, and has a structure extending linearly toward one corner. In addition, the concave groove 102 is a structure in which the stepped concave from the upper surface of the pedestal 100, the center of the concave groove 102 incision in the upper and lower side parallel to the concave groove 102 And a pin 90 of the worm reducer 84 is raised and lowered through the cutout 104, and the pin 90 can move along the cutout 104 by the operation of the geared motor 72. To form a space.

And, the front side of the pedestal 100 is provided with a rotating cylinder 110 for conducting the grinding wheel 220 in an upright state in a horizontal state. The rotation cylinder 110 has its rod 112 extended to the pedestal 100 side, the rear end thereof is rotatably mounted on the upper surface of the base plate 5 through the hinge 114, the rod 112 The pivot table 120 is rotatably mounted to the front end through a pin (not shown), and the other end of the pivot table 120 is rotatably connected to an upright bracket 122 adjacent to the pedestal 100.

In addition, a grindstone support plate 126 upwardly protruding in a direction perpendicular to the rod 112 of the rotating cylinder 110 is formed on the upper surface of the rotating table 120, and the rod 112 of the rotating cylinder 110 is formed. When the withdrawal, the pivot 120 is to tilt the pivot 120 around the upright bracket 122 so that the whetstone 220 can be placed on the pedestal 100.

In this process, the whetstone support plate 126 is a state in which one edge of the whetstone 220 is sandwiched therebetween, so that the whetstone 220 is fixed even when the wheel is rotated in a horizontal state in a vertical state, thereby allowing stable rotation by the rotation cylinder 110. It can work.

In addition, a flange holder 130 in which a plurality of compartments 132 are partitioned on an upper surface is installed to the rear of the pedestal 100, that is, to the opposite side of the rotation cylinder 110. And, next to the pillar 137 is fixed and the rail 138 is installed on the top of the pillar 137, the hoist 136 is installed on the rail 138 to convey the flanges 205 and 210 To help dismantling and assembly of the flanges 205 and 210 in the grinding wheel 220 is to be arranged to perform mechanically.

Reference numeral 140 is a guide passage from the cart 42 to the pivot table 120.

Referring to the operation and effects of the present invention configured as described above are as follows.

As shown in FIG. 6, the flange exchanger 1 of the grinding wheel grindstone according to the present invention, when the flange 205, 210 is to be disassembled from the grindstone 220 to be worn and discarded, the grindstone 220 ) Is removed from the grinding machine and placed on the grindstone plate 30 through the guide passage 34.

Then, after selecting a particular grindstone 220 among the grindstones 220 stacked on the grindstone plate 30, when the operator presses a button on the operation panel 10, the motor 12 rotates and then the pinion gear 16. When the rotational force transmits the rotational force to the inner ring 22 of the ring gear 20, the grinding wheel 30 connected to the inner ring 22 of the ring gear 20 rotates and the wheel (corresponding to the bogie 42). Stop 220) at a good position to move.

Then, the worker pushes the whetstone 220 from the whetstone mounting plate 30 to rest on the cart 42. Then, when the geared motor 50 is operated to transmit the rotational motion to the rack 40 through the pinion gear 44, it is converted into a linear motion to ride the two rows of guides 36a and 36b, and the bogie 42 is fixed. Advance to position.

When the advancement is completed and the trolley 42 is stopped, the worker pushes the grindstone 220 from the trolley 42 through the guide passage 140 to rest on the pivot table 120.

Then, when the rotating cylinder 110 is operated to move the rod 112 forward and rotate the rotating table 120, the rotating table 120 and the grinding wheel are centered around the connection portion of the upright bracket 122 and the rotating table 120. 220 is rotated 90 degrees inclined, the wide surface of the grindstone 220 is slowly placed on the pedestal 100.

In this case, the lower flanges 205 and 210 of the grinding wheel 220 are located in the recess 102 of the pedestal 100.

Then, when the geared motor 80 is started to raise the lifting shaft 86 of the worm reducer 84, the pin 90 passes through the center holes 205a and 210a of the upper and lower flanges 205 and 210. It protrudes to the top of the upper flange 205.

Thereafter, when the geared motor 72 is started to rotate the screw 68, the geared motor 80 and the worm reducer 84 are advanced in two rows of guides 66a and 66b, and the grinding wheel 220. It is separated from the grindstone support plate 126 of the pivot table 120 and moved to the center of the pedestal 100, in which case the pin 90 is movable through the cutout 104 of the pedestal 100.

Then, after placing the grindstone 220 in the center of the pedestal 100 in this way, the worker unscrews and removes the bolts 226 of the upper flange 205 using an air impact (not shown) in this state. .

Then, the bolts 226 are separated from the upper and lower flanges 205 and 210, and the upper flanges 205 from which the bolts 226 are removed are operated by the hoist 136 to the bolt holes 257. After tightening the eye bolt (eye bolt) (not shown), the lifting is placed on the flange holder 130 provided on the side.

After this operation, the fixing plate 94 is positioned in the upper hole of the pin 90 and fixed with a bolt 96. Then, the geared motor 80 is operated to lower the pin 90 through the worm reducer 84. The fixing plate 94 is separated from the grindstone 220 by pulling the lower flange 210, and the disassembly of the upper and lower flanges 205 and 210 in the grindstone 220 is completed.

And when the new whetstone 220 is to be fastened to the flanges 205 and 210 again, the whetstone mounting plate 30 is in the state in which the lower flange 210 is in the recessed recess 102 of the pedestal 100. The new whetstone 220 is moved by using the bogie 42, mounted on the pivoting table 120, and then dismounting and separating the fixing plate 94 from the pin 90, and operates the geared motor 72 The lower flange 210 is moved to the pivot table 120.

Then, the rotary cylinder 110 is operated to place the grindstone 220 on the pedestal 100, and the geared motor 72 is operated to move the new grindstone 220 and the lower flange 210 to the center of the pedestal 100. ), Then lift the upper flange 205 from the flange holder 130 using the hoist 136 to center the new whetstone 220 and use the air impact (not shown) to tighten the bolt 226. By fastening the upper and lower flanges 205 (210) and the grinding wheel 220 to complete the assembly, using a hoist 136 to lift it from the pedestal 100 and reuse.

According to the present invention as described above, by performing the disassembly and replacement of the heavy grindstone 220 and the flange 205, 210 by using the power to reduce the fatigue of the operator, thereby preventing the worker's safety accident It is possible to obtain an effect that can improve the maintenance efficiency.

Claims (5)

In the apparatus for disassembling the flanges 205 and 210 in accordance with the disposal of the worn grindstone 220 after use in a grinding machine, and assembling the flange to a new grindstone, A whetstone mounting plate 30 rotatable by a motor 12 on a base plate 5, and provided with a whetstone support plate 32 for mounting a plurality of whetstones 220 on an upper surface thereof; It is provided with a plurality of guide rails (36a, 36b) extending to one side from the grinding wheel mounting plate 30, it is possible to move back and forth by the operation of the motor 50 on the guide rails (36a, 36b), A whetstone support plate 46 on which the whetstone 220 is mounted is provided on its upper surface to move the whetstone 220 at a predetermined distance from the whetstone mounting plate 30; It is provided with a support plate 100 disposed on the other side of the cart 42, and has a pin 90 which is lowered from the bottom of the support plate 100 to be inserted into the center of the grindstone 220, the pin 90 A whetstone fixing part 60 having a geared motor 80 and a worm reducer 84 for driving the geared motor 80 and a geared motor 72 for horizontally moving the geared motor 80 and the worm reducer 84; A hoist 136 disposed on one side of the grindstone fixing part 60 to lift the flanges 205 and 210 with power from the grindstone 220; and A flange holder 130 disposed on one side of the hoist 136 and having a plurality of compartments 132 on which flanges 205 and 210 are mounted; 205) 210, the flange exchange device of the grinding wheel, characterized in that configured to disassemble and assemble by the action of the power. According to claim 1, wherein the grindstone mounting plate 30 is the outer ring 24 of the ring gear 20 is fixed to the base plate 5 with a bolt 26, the lower surface of the inner ring (20) of the ring gear (20) 22) is fixed to the upper portion, the ring gear 20 has a ring-shaped projection 22a is formed on the outer circumferential surface of the inner ring 22, the tooth 22b is formed on the inner circumferential surface of the inner ring 22, the outer ring 24 The protrusion 22a is fitted into the inner surface thereof so that the slideable groove 24a is formed and lubricated, so that the outer ring 24 of the ring gear 20 is fixed, and the inner ring is operated by the operation of the motor 12. 22) is a grinding wheel grinding device, characterized in that the grinding wheel plate 30 is rotated. According to claim 1, wherein the bogie 42, the grindstone support plate 46 protrudes on both sides of the upper surface, a plurality of liners 48 are attached to the lower surface to ride a plurality of guides (36a) (36b) It is equipped with a motor 50 disposed vertically downward on one side of the bogie 42, the pinion gear 44 is mounted to the rotation axis of the motor 50 is geared to the rack 40, the Bogie 42 is the flange exchange device of the grinding wheel grinding wheel, characterized in that the pinion gear 44 of the motor 50 is subjected to a rotational movement to move forward and backward along the rack 40. According to claim 1, wherein the grindstone fixing portion 60 is provided with a screw shaft 68 which is connected to the rotary shaft of the geared motor 72 for rotational movement, the screw shaft 68 is a moving nut 76 in the middle Is screwed, the moving nut 76 is formed with a bracket (78) on the upper surface thereof is screwed to the lower surface of another geared motor 80, by the operation of the geared motor 72 screw shaft 68 ), When the forward and reverse rotation, the moving nut (76) moves forward and backward along the screw shaft (68) while simultaneously forming the forward and backward of the geared motor (80) and the worm reducer (84). Exchange device. The fixing plate 94 of claim 1, wherein a screw hole 92 is formed at an upper end of the pin 90, and a hole 94a is formed at the center at an upper side of the pin 90. And a bolt 96 arranged to penetrate the hole 94a, and configured to fix the fixing plate 94 to the upper end of the pin 90 by screwing.