JPS61148402U - - Google Patents

Description

[Brief explanation of the drawing]

1 to 15 show one embodiment of the present invention, FIG. 1 is a vertical sectional view, and each of FIGS. 2 to 6 is a line AA and BB in FIG. 1. , C-C line, D-
7 is a sectional view taken along line D and E-E, FIG. 7 is a sectional view taken along line FF in FIG. 2 with a hydraulic circuit added, and each of FIGS. 8 to 15 is a roll unit. FIG. 16 is a longitudinal sectional view showing an example of the conventional art. 1... Roll shaft, 9a... Retaining part, 10...
Roll unit, 11... Roll, 12... Taper sleeve, 13... Pressing body, 19... Elastic body,
23...Equipped shaft, 28...Cylinder block, 2
9... Hydraulic cylinder, 30... Nut body, 31...
...Housing, 32, 33... Proximal end side/distal end side piston, 39... Hydraulic system, 46... Stopper, 48... Stopper surface, 49... Drawer body.

Claims (1)

[Scope of utility model registration request] A roll unit 10 is removably fitted to the tip of the roll shaft 1, a roll 11 is fitted onto the outside of the roll shaft 1, and the roll unit 10 is taper-coupled to the roll shaft 1 so that the base portion is connected to the outer peripheral surface of the roll shaft 1 and the inner periphery of the roll 11. A tapered sleeve 12 is inserted into and removed between the surfaces, and a tapered sleeve 12 is fitted onto the tip of the sleeve 12 so that it cannot be pulled out to the side opposite to the roll 11 side, and the roll 11 is aligned with the roll axis in the axial direction. A pressing body 13 cooperates with the sleeve 12 to fix the roll 11 to the roll shaft 1 by pressing toward the base end of the roll shaft 1. An equipped shaft having an elastic body 19 fixed to the roll shaft 1, the base of which is fixed to the tip of the elastic body 19, and the tip side protrudes outward in the axial direction of the roll shaft 1. 23 is inserted so as to be movable in the axial direction and non-rotatable relative to each other, and in contact with the base of the equipment shaft 23 in the axial direction to the roll shaft 1, so that the elastic body 19 is extended beyond its natural length. Roll axis 1 of equipment axis 23
The cylinder block 28 is provided with a retaining portion 9a to prevent the cylinder block 28 from coming off from the
removably fit the cylinder block 28,
The housing 31 is externally fitted onto the equipment shaft 23 so as to be relatively movable in the axial direction and not relatively rotatable, and the housing 31 is fitted onto the pistons 32, 33 and the equipment shaft 2.
A double-acting hydraulic cylinder that pushes the sleeve 12 in a state in which the retaining portion 9a and the equipped shaft 23 are in contact with each other in the axial direction by moving in the axial direction relative to the roll unit 10 with respect to the sleeve 12. 29 is screwed onto the outer circumferential surface of the housing 31 so as to be freely retractable in the axial direction, and is pressed by the housing 31 of the hydraulic cylinder 29 due to the elastic attraction of the elastic body 19 during operation, thereby moving the pressing body 13 toward the roll 11 side. A stopper 46 is screwed onto the outer circumferential surface of the distal end of the equipment shaft 23 so as to be able to move forward and backward in the axial direction and to be detachable.The housing 31 of the hydraulic cylinder 29 and piston 3
A stopper surface 48 is formed to restrict movement of the nuts 2 and 33 in the axial direction to the side opposite to the roll unit 10 side, and the nut body 30 and the pressing body 13 are
The pressing body 13 and a drawer body 49 for drawing out the sleeve 12 are releasably interlocked and connected in the drawing direction.