CN2452636Y

CN2452636Y - Built-in type axial adjusting device for roller

Info

Publication number: CN2452636Y
Application number: CN 00221679
Authority: CN
Inventors: 郑泽; 于粉堂; 刘庆祖; 徐从保
Original assignee: MAANSHAN IRON AND STEEL DESIGN
Current assignee: MAANSHAN IRON AND STEEL DESIGN
Priority date: 2000-09-08
Filing date: 2000-09-08
Publication date: 2001-10-10
Anticipated expiration: 2010-09-08

Abstract

The utility model discloses a built-in type axial adjusting device for a roller, which is hidden in a roller bearing seat 1 and an inner cavity shell 2 of the extension part of the roller. The utility model comprises a worm gear pair, a front and a back screw pairs, a thrust bearing 4, a roller 5, etc., wherein, a rear internal thread body 6 is pressed and fixed through a press cover 7; a front internal thread body 8 is arranged on the inner cavity shell 2; a front and a rear external thread bodies 9, 10 are connected into integration with a gear 3 in the worm gear pair and clamp an outer ring of the thrust bearing 4; an inner ring of the thrust bearing 4 is connected with a roller neck. The utility model has the advantages of small axial motion and high adjustment precision, and the roller is convenient to be assembled and disassembled.

Description

Built-in roll axial-adjustment unit

The utility model relates to rolling mill, relates more specifically to short stress path rolling mill roll axial-adjustment unit.

The traditional memorial archway milling train and the roll axial adjustment of non-stand rolling mill are to promote roll chock by the cover of one on frame or base leverage, the drive roll axially moves, realize axial adjustment, this leverage is for short stress path rolling mill, its adjusting function is poorer, directly influences the product quality of milling train.

The short stress path rolling mill axial-adjustment unit that generally adopts is to add a cover governor motion on roll chock at present, directly driving roll moves axially, this governor motion is to be moved axially by the promotions such as a pair of gear driven internal and external threads that are contained on the bearing block, it is moving axially also to have string during adjusting, and degree of regulation is poor; And part such as gear must dismounting during the roll dismounting, results in hand cramps for the roll dismounting.

The purpose of this utility model provides that a kind of axial string momentum is little, degree of regulation is high, the simple load and unload roll axial-adjustment unit of roll.

For achieving the above object, roll axial-adjustment unit of the present utility model is built in roll chock and the extension inner chamber housing thereof, comprise parts such as worm tooth wheel set, front and back screw thread pair, thrust bearing and roll, wherein the internal thread body in the rear thread pair is pressed abd fixed on the inner chamber housing by the gland of fixedlying connected with the inner chamber housing; Internal thread body in the preceding thread pair is opened on the inner chamber housing; Before and after external screw thread body and the gear in the worm tooth wheel set in the screw thread pair also outer ring of clamping thrust bearing that fuses; The inner ring of thrust bearing links to each other with roller neck.Because front and back internal thread body is fixed, during the rotary worm gear pair, the external screw thread body rotation that fuses with regard to the gear that drives with the worm tooth wheel set, produce in the time of the rotation of external screw thread body and move axially, and the outer ring of clamping thrust bearing makes it to produce same motion, then drive the roll that is attached thereto and axially move, reach the purpose of axial adjustment.

After adopting such structure,, can eliminate the sideshake between screw thread, thereby eliminate the axial motion of this device inherence because the position of back internal thread body can be adjusted by gland; Again owing to adopt gear on worm transmission, degree of regulation height; In addition owing to this adjusting device compact conformation, be fixed together, thereby the roll dismounting is very convenient, does not need to dismantle other parts.

Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.

Fig. 1 is the cutaway view of roll axial-adjustment unit of the present utility model;

Fig. 2 is the cutaway view along the A-A line of roll axial-adjustment unit shown in Figure 1.

As depicted in figs. 1 and 2, in the top roll system of level two roller short stress path rolling mills, roll axial-adjustment unit of the present utility model is built in roll chock 1 and the extension inner chamber housing 2 thereof, comprise parts such as gear on worm, front and back screw thread pair, thrust bearing 4 and roll 5, wherein the internal thread body 6 in the rear thread pair is pressed abd fixed on the inner chamber housing 2 by the gland 7 of fixedlying connected with inner chamber housing 2; Internal thread body 8 in the preceding thread pair is opened in inner chamber housing 2 inner surfaces; Before and after screw thread pair China and foreign countries threaded body 9,10 and gear 3 in the worm tooth wheel set also outer ring of clamping thrust bearing 4 that fuses; The inner ring of thrust bearing 4 links to each other with roll 5 roll necks.Its left end and end cap 11, bolt 12 fuse 5 on roll on diaxon bearing 1, can rotate freely, and moving axially of roll 5 is limited by thrust bearing 4.For ease of regulating, be provided with on the worm screw in the worm tooth wheel set and expose joint 13.

When roll 5 needs axial adjustment, artificial rotation exposes joint 13, and the rotation of worm tooth wheel set drives external screw thread body 9,10 rotations in the front and back screw thread pair that fuses with gear 3, because internal thread body the 6, the 8th is fixed, generation moves axially in the time of 9,10 rotations of external screw thread body; The outer ring of external screw thread body 9,10 clamping thrust bearings 4 also makes it to produce same motion; The outer ring of thrust bearing 4 is moved the roll 5 that also drive is attached thereto and is axially moved, thereby realizes the purpose of axial adjustment.When axial motion, can regulate the position of back internal thread body 6 by gland 7, eliminate the sideshake between screw thread.Because this adjusting device is fixed together, when roller system installs and removes, need only send out a bolt to get final product, and not need to dismantle other parts, the dismounting of roller system is very convenient.

The utility model compact conformation, handling safety, reliable the more important thing is that the roll axial adjustment does not influence the duty of related components, and the reliability of adjusting and accuracy are all than higher.This device is not only applicable to short stress path rolling mill, applicable to the milling train of other form yet.

Claims

1, a kind of built-in roll axial-adjustment unit comprises worm tooth wheel set, front and back screw thread pair, thrust bearing (4) and roll parts such as (5), and it is characterized in that: described device is built in roll chock (1) and the extension inner chamber housing (2) thereof; Internal thread body (6) in the described rear thread pair is pressed abd fixed on the inner chamber housing (2) by the gland (7) of fixedlying connected with inner chamber housing (2); Internal thread body (8) in the described preceding thread pair is opened on the inner chamber housing (2); Before and after external screw thread body (9), (10) in the screw thread pair fuse with gear (3) in the worm tooth wheel set and the outer ring of clamping thrust bearing (4); The inner ring of thrust bearing (4) links to each other with roll (5) roll neck.

2, roll axial-adjustment unit according to claim 1 is characterized in that: the worm screw of described worm tooth wheel set is provided with exposes joint (13).