JPH0230763B2 - PIASAYODEITSUSHAROORUTORITSUKE SOCHI - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a date shear roll mounting device in a date shear mill for a piercer.

(Prior Art) Conventionally, in this type of date shear roll mounting device for pier assignment, as shown in FIG. A mounting flange 27 is provided within the roll shaft 26, and a connecting rod 29 that can be retracted by the force of a spring 28 is provided in the roll shaft 26, and the inner circumferential surface is formed into a tapered surface at the center of the dew shear roll 13. A flange fitting portion 30 is recessed, and a meshing clutch 31 is separately provided between the axially opposing surfaces of the fitting portion 30 and the mounting flange 27. and the meshing clutch 31
The attached state was maintained by pulling the delivery roll 13 by the connecting rod 29.

(Problems to be Solved by the Invention) However, in this conventional device, the roll shaft 26 is supported by the bearing 25 in a cantilevered manner and is bent by the rolling reaction force, so the date shear roll 13 falls down significantly.
It rotates while swinging from side to side, making stable operation impossible. In addition, the roll shaft 26 and the date shear roll 13 are fitted at a tapered surface 32, and the tapered surface 32 is likely to be damaged and rattled by roll replacement or rolling reaction force, and the roll center may shift due to the rattling. However, there was an unavoidable problem that a biting phenomenon occurred on the tapered surface 32, making it difficult to remove.

The present invention was made in order to solve the above-mentioned conventional problems, and includes supporting bearings at both ends of the roll shaft to suppress runout of the date shear roll during rolling.
The purpose is to improve the stability of operations and to make it possible to change rolls easily and quickly.

(Example) An example of the present invention will be described below with reference to FIGS. 1 to 3.

In the figure, reference numeral 1 denotes a bearing guide, and a bearing 2 is fitted into the guide 1 so as to be movable by a hydraulic cylinder 3. As shown in FIG. This bearing guide 1 includes reduction adjustment mechanisms 16 to 19 and line direction adjustment mechanisms 20 to 23, which will be described later.
It is supported within the housing 4 via.

5 is a roll shaft, and in the middle of the shaft 5 is a pressing piece 6 (regardless of continuous or discontinuous) along the circumference of the shaft.
is disposed, and a tapered guide surface 7 is provided at one end. This roll shaft 5
is rotatably mounted and supported by the bearing 2 at the end on the side opposite to the guide surface 7, and can be retracted into the bearing guide 1 along the roll axis as the bearing 2 retreats.

8 is a bearing, which is connected to the housing 4 via the lowering adjustment mechanisms 16 to 19 and the line direction adjustment mechanisms 20 to 23.
The bearing guide 1 is supported within the bearing guide 1 and is disposed facing the bearing guide 1 at a distance on the roll axis.

Reference numeral 9 denotes a drive shaft, which is movable by the axial direction adjustment mechanisms 3 and 24 and rotatably mounted and supported by the bearing 8. The tip of this drive shaft 9 (bearing 2 side end)
is provided with a flange 10, and a roll shaft insertion portion 11 is provided at the center of the tip. A plurality of keys 12 are mounted radially on the surface of the flange 10.

13 is the date shear roll, with shaft hole 1 in the center of the boss.
4, and a plurality of key fitting portions 15 are provided radially on one end face of the boss, which is formed to have approximately the same size as the flange 10 at the tip of the drive shaft.

The roll shaft 5 is advanced toward the bearing 8 side while being guided by the bearing guide 1 via the bearing 2 by the rod extension operation of the hydraulic cylinder 3, and is fitted into the roll shaft insertion portion 11 at the tip of the drive shaft 9. . The date shear roll 13 is fitted and supported on the roll shaft 5, and is pressed against the drive shaft 9 by the force of the hydraulic cylinder 3 at the pressing piece 6 that is in contact with the boss end surface, and the boss end surface of the roll 13 is pressed against the drive shaft 9 by the force of the hydraulic cylinder 3. In the key fitting part 15 provided in
Key 1 provided on the surface of flange 10 at the tip of drive shaft 9
2 are fitted together so that torque can be transmitted.

Reference numeral 16 indicates a hydraulic cylinder, and reference numeral 17 indicates a jack placed on both sides of the cylinder 16. They are installed on both sides of the date shear roll 13, and each jack 17 is connected to one motor 1 via a tuning mechanism 8.
Connected to 9. Bearing guide 1 and bearing 8
is mounted and supported so as to be able to slide in the line direction below the operating shafts of the adjacent hydraulic cylinders 16 and jacks 17, and the position in the roll rolling direction can be adjusted by pushing and pulling the cylinders 16 and jacks 17. It's summery.

Reference numeral 20 denotes a line direction guide rod, one end of which is attached to the line direction opposing surface of the bearing guide 1 and the line direction opposing surface of the bearing 8 so as to be vertically slidable. Reference numeral 21 denotes line direction guide tubes, which are installed on both sides of the bearing guide 1 and on both sides of the bearing 8, respectively, and corresponding guide rods 20 are fitted into the guide tubes 21 so as to be slidable in the line direction. . 22 is a hydraulic cylinder, and 23 is a jack, each of which has its operating shaft tip connected to a corresponding guide rod 20 in the line direction, and by the pushing and pulling action of the cylinder 22 and jack 23, the date shear roll 13 is moved in the line direction. The position is adjustable.

Reference numeral 24 denotes a jack (only a portion of which is shown), which is attached to one end of the bearing 8. The cylindrical operating shaft of this jack 24 is rotatably fitted into the drive shaft 9 while being prevented from moving in the axial direction. The position of the roll 13 in the axial direction can be adjusted.

Although the example in which the -12 and the key fitting part 15 are used as the dog clutch has been described, the same effect can be obtained by using a face gear, a pawl clutch, or the like.

(Function) When installing the date shear roll 13, the date shear roll 13 is suspended from above between the bearing guide 1 and the drive shaft 9 using a crane or the like. The roll shaft 5 is kept on standby at the backward limit position by the hydraulic cylinder 3, and after the suspension of the date shear roll 13 is completed, the roll shaft 5 is advanced, and the tip guide surface 7 is first placed in the shaft hole 4 of the date shear roll 13. and insert it into the roll 13. When the pressing piece 6 of the roll shaft 5 comes into contact with one boss end face of the date shear roll 13, the roll shaft 5 presses against the date shear roll 13.
It moves forward together with the drive shaft 9 and fits into the tip of the drive shaft 9. On the other hand, the other boss end surface of the dateshier roll 13 is pressed against the flange surface at the tip of the drive shaft, and the clutches 2 and 15 interposed between them are engaged, and the dateshier roll 13 is pressed against the flange surface at the tip of the drive shaft. At the same time, the pressing piece 6 on the roll shaft 5 and the drive shaft 9
The axial position of the roll is set by being sandwiched between the roller and the roller.

Adjustment of the roll axis direction of the date shear roll 13 is carried out by pushing and pulling the hydraulic cylinder 3 and jack 24, adjustment of the rolling direction is carried out by pushing and pulling the hydraulic cylinder 16 and jack 17, and adjustment of the line direction is carried out by hydraulic pressure. This is done by pushing and pulling the cylinder 22 and jack 23.

When removing the date shear roll 13, reverse the installation procedure described above, and while suspending the date shear roll 13 with a crane or the like, move the roll shaft 5 back to the retraction limit position by retracting the rod of the hydraulic cylinder 3. It may be removed from the roll 13, and then the roll 13 may be hung up.

(Effects of the Invention) As described above, the present invention arranges bearings on both sides of the date shear roll, and makes it possible to retract the roll shaft supported by both bearings to one bearing side.
The date shear roll on the roll shaft is held between the pressing piece provided along the circumference of the roll shaft and the drive shaft, and the roll can be connected to the drive shaft with a meshing clutch, making it possible to replace the roll. This can be done easily and quickly, and the mounting condition of the date shear roll is stable, so that runout during rolling can be reliably reduced, and roll core shift can be prevented, thereby improving operational stability.

[Brief explanation of drawings]

Fig. 1 is a front sectional view showing an embodiment of the present invention, Fig. 2 is a plan view thereof, Fig. 3 is a right side view showing the same in partial section, and Fig. 4 is a partial front sectional view showing a conventional example. It is a diagram. DESCRIPTION OF SYMBOLS 1... Bearing guide, 2... Bearing, 3... Hydraulic cylinder, 5... Roll shaft, 6... Pressing piece, 7... Guide surface,
8... Bearing, 9... Drive shaft, 10... Flange, 11...
Roll shaft fitting part, 12...Key, 13...Dateshier roll, 14...Shaft hole, 15...Key fitting part.

Claims (1)

[Claims] 1. One bearing arranged oppositely on the same center line is provided so as to be movable back and forth on the other bearing side, the base end of the roll shaft is rotatably supported by the one bearing, and the roll shaft is rotatably supported by the one bearing. A drive shaft having a shaft insertion portion at the center of the tip is rotatably supported, a meshing clutch is interposed between the tip of the drive shaft and the boss end face of the date shear roll, and the drive shaft is pressed along the circumference of the roll shaft. A date for a piercer, characterized in that the roll shaft is fitted into the boss and drive shaft of a date shear roll, and the date shear roll is pressed against the drive shaft by a pressing piece to connect a meshing clutch. Shear roll mounting device.