CN2925876Y

CN2925876Y - Rotary play mechanism of offset press

Info

Publication number: CN2925876Y
Application number: CN 200620032161
Authority: CN
Inventors: 拜进旗; 张学岭; 李全群; 唐爱红
Original assignee: HENAN XINJI CO Ltd
Current assignee: HENAN XINJI CO Ltd
Priority date: 2006-05-24
Filing date: 2006-05-24
Publication date: 2007-07-25
Anticipated expiration: 2016-05-24

Abstract

The utility model discloses a rolling moving device offset printing press, consisting of an offset printing roller and a slide ring. Two sets of thrust bearing are installed to two roll shafts of the ends of the offset printing roller respectively, a circle of thumb pads are fixed to the middle roll shafts of the two sets of thrust bearing respectively, two sets of radial bearings are installed in the thumb pads respectively, the inner wall middle part of the slide ring provided with the moving rod is fixed to the outer wall of the radial bearing through a upper opening of the thumb pad, and a lock nut is revolved and connected with the outside of the two ends of bearing with a thrust bearing screw thread. The utility model adjusts the moving rod and the nut through the thrust bearing and the radial bearing to realize rolling moving the offset printing roller, so the moving friction force is small, the utility model is hard to become heat to avoid the damage of rolling machine elements.

Description

Offset press roller play mechanism

Technical field:

The utility model relates to printing machinery, and frictional force is little during particularly a kind of play, not the offset press roller play mechanism of fragile parts.

Background technology:

Play mechanism on the existing offset press intermediate calender rolls is respectively equipped with end cap at the two ends of offset printing roller, and matched in clearance between end cap and the roll shaft is provided with between the gap of end cap and rubber roll and draws ring, draws in the ring and is furnished with the play bar.Friction strength was big especially when the shortcoming of this slidingtype play mechanism was the play commutation, is prone to frictional heating roll temperatures is exceeded standard, even damage parts.

Summary of the invention:

The purpose of this utility model provides a kind of roller play, and frictional force is little, not the offset press rolling play mechanism of fragile parts.

The technical solution of the utility model is finished as follows, it includes offset printing roller and draws ring, it is characterized in that: two cover thrust bearings are housed respectively on the roll shaft at offset printing roller two ends, on the middle roll shaft of two cover thrust bearings, be fixed with the recessed pad of a circle respectively, be separately installed with a cover radial bearing in the recessed pad, the ring inwall middle part of drawing that has the play bar is passed recessed pad upper shed and is fixed on the radial bearing outer wall, is connected with locking nut in the outside of two ends roll shaft by the thrust bearing screw thread.

The utility model has been avoided the damage of rolling parts owing to be to realize the roller play of offset press roller so play frictional force is little, being difficult for heating up by thrust bearing and radial bearing with adjustment play bar and nut.

Description of drawings:

Fig. 1 is a structural representation of the present utility model.

The specific embodiment:

The utility model is the improvement to existing offset press play mechanism, mainly be on the two ends of offset printing roller 1 roll shaft 2, traditional two end cap to be changed into every end two cover thrust bearings 3 are installed, centre at two cover thrust bearings is equipped with a cover radial bearing by a recessed pad 7, on each exceeds the recessed acting as a cushion portion radial bearing of thrust bearing, be fixedly connected with drawing of outer opening of a week and encircle 6, be equipped with a play bar 5 respectively in each stroke ring, in the outside of two ends roll shaft by the thrust bearing locking nut 8 that has been threaded.This roller play mechanism is because drive by the play bar and to draw ring and make radial bearing and thrust bearing produce the roller play with roll shaft, so frictional force is little when play commutates, caloric value is few, not fragile offset press parts.

Claims

1, offset press roller play mechanism, it includes offset printing roller and draws ring, it is characterized in that: two cover thrust bearings are housed respectively on the roll shaft at offset printing roller two ends, on the middle roll shaft of two cover thrust bearings, be fixed with the recessed pad of a circle respectively, be separately installed with a cover radial bearing in the recessed pad, the ring inwall middle part of drawing that has the play bar is passed recessed pad upper shed and is fixed on the radial bearing outer wall, is connected with locking nut in the outside of two ends roll shaft by the thrust bearing screw thread.