CN201366433Y

CN201366433Y - Axial locating device of rolling mill

Info

Publication number: CN201366433Y
Application number: CNU2009201265061U
Authority: CN
Inventors: 郭显平; 李图学; 张荣滨; 罗贤勇
Original assignee: CISDI Engineering Co Ltd
Current assignee: CISDI Engineering Co Ltd
Priority date: 2009-03-03
Filing date: 2009-03-03
Publication date: 2009-12-23
Anticipated expiration: 2019-03-03

Abstract

The utility model belongs to the technical field of mechanical engineering and in particular relates to an axial locating device of a rolling mill. The axial locating device of the rolling mill comprises a rolling mill housing, an L-shaped pressure plate, a bearing base, a spherical surface bolt, a sliding plate and a spherical gasket; the L-shaped pressure plate is fixed on the rolling mill housing by a bolt, the spherical surface bolt is arranged on the bearing base of the rolling mill, the sliding plate and the spherical gasket are respectively fixed on the rolling mill housing and the L-shaped pressure plate, movable fitting is adopted between the spherical surface bolt and the spherical gasket, and sliding fitting is adopted between the spherical gasket unit and the sliding plate. The axial locating device can meet needs of various deformation requirements and roller seam adjustment of the rolling mill in the rolling process, avoids from losing bruising effectiveness caused by point contact of the spherical surface bolt, improves the quality of products, improves the axial rigidity of the rolling mill, prolongs the service life of the axial locating device of the rolling mill, reduces equipment maintenance, and saves cost, therefore, the axial locating device can be widely applied to axial location of the rolling mill.

Description

A kind of axial direction positioning device of milling train

Technical field

The utility model belongs to mechanical engineering technical field, particularly a kind of axial direction positioning device of milling train.

Background technology

China's iron and steel metallurgical industry fast development, product quality improves constantly, and nucleus equipments such as milling train are had higher requirement.As shown in Figure 1, milling train has axial direction positioning device in the fore side design at present.Traditional axial direction positioning device as shown in Figure 2, comprise the L type pressing plate 2 of fixedlying connected with rolling-mill housing 1 by bolt, the shim pack 6 and the slide plate 5 that are connected with L type pressing plate 2 screws, the sphere bolt 4 that is threaded with the perpendicular rib of bearing block, wherein form the higher pair that some contact between sphere bolt and the slide plate, the gap of eliminating axial each parts during use by the screw thread pair between sphere bolt 4 and the bearing block 3.The shortcoming of this axial direction positioning device is: when milling train at the asymmetric rolled piece of rolling cross sectional shape or improper when rolling, can produce certain axial stress along the roll axis direction on the one hand, this axial force be easy to make with slide plate between the sphere bolt conquassation inefficacy that contact of point, make roll at axial direction generation play, influence the life-span of milling train, on the other hand in the operation of rolling, roll itself can produce certain flexural deformation to adapt to rolling needs, and this apparatus structure both had been unfavorable for the deformation requirements of roll itself, also be unfavorable for the adjustment of mill roll-gap, influence product quality, cause economic loss.

Summary of the invention

The purpose of this utility model is to provide a kind of axial direction positioning device of milling train, it comprises rolling-mill housing, L type pressing plate, bearing block, sphere bolt, slide plate and shim pack the utility model, described L type pressing plate is fixed by bolts on the rolling-mill housing, described sphere bolt is installed on the rolling mill bearing, described slide plate and shim pack are screwed respectively on described rolling-mill housing and L type pressing plate, adopt movingly between described sphere bolt and the ball ring, adopt between described ball ring and the slide plate to be slidingly matched.By the improvement to existing axial direction positioning device, the novel axial positioner that adopts spherical hinge to replace point to contact is to improve the distribution of axial stress, improve the axial rigidity of milling train, avoid the conquassation of sphere bolt to lose efficacy, improve product quality, reduce plant maintenance.

The purpose of this utility model is achieved in that a kind of axial direction positioning device of milling train, it is characterized in that this device comprises rolling-mill housing, L type pressing plate, bearing block, sphere bolt, slide plate, shim pack and ball ring.Described L type pressing plate is simple steel construction, is drilled with respectively at the bottom and the top of this pressing plate for bolted through hole and the blind hole that is connected for screw; The nut of described sphere bolt is a sphere, and this sphere can be a concave spherical surface, also can be protruding sphere; Described slide plate is a simple cuboid; Described pad is a rectangle thin slice, can be a slice, also can form shim pack by multi-disc; Described ball ring simultaneously is concave spherical surface or protruding sphere, and another side is the plane, and the radius of curvature of this ball ring sphere, size are consistent with size, the shape of the sphere of above-mentioned sphere bolt nut.

In said apparatus, slide plate, pad, ball ring and sphere bolt are respectively two, wherein, above-mentioned L type pressing plate is by being bolted on the rolling-mill housing, described slide plate and shim pack are separately fixed on L type pressing plate and the rolling-mill housing by screw, described two sphere bolts are to being contained in the screw on the perpendicular rib of bearing block, described ball ring is installed between slide plate and the sphere bolt, form spherical hinge between the nut of the land portions of this ball ring and sphere bolt movingly, the planar section of ball ring matches with slide plate, and slide plate presses the ball ring that can be free to slide and forms moving sets.

The utility model is compared with prior art: adopted the spherical hinge structure, improved the distribution of axial stress, avoided the conquassation of sphere bolt to lose efficacy, can satisfy the various deformation requirements of roll in the operation of rolling, and the mutual slidable adjustment between ball ring and the slide plate, can satisfy the needs that mill roll-gap is adjusted, even the utility model is when the asymmetric rolled piece in rolling cross section, the wearing and tearing that each interconnective faying face causes under the contact stress effect also can be repaired eroded area by with the disassembling fast of ball ring and slide plate, make it recover due contact and connect precision, thereby the assurance product quality reduces plant maintenance, reduces production costs.

Description of drawings

Fig. 1 is the location view of the utility model at roller system of rolling mill;

Fig. 2 is the conventional axial positioning device structure of existing milling train;

Fig. 3 is the axial direction positioning device of milling train of the present utility model.

Among the figure, part 1 is a rolling-mill housing, and part 2 is a L type pressing plate, and part 3 is a bearing block, and part 4,5 is the sphere bolt, and part 6,7 is a slide plate, and

part

8,9 is a shim pack, and part 10,11 is a ball ring.

The specific embodiment

The utility model is described in further detail below in conjunction with drawings and Examples, but the present invention is not limited only to this.

Referring to Fig. 3, a kind of axial direction positioning device of milling train is characterized in that: this device mainly is made up of rolling-mill housing 1, L type pressing plate 2, bearing block 3, sphere bolt 4,5 slide plates, 6,7

shim pack

8,9 and ball ring 10,11.L type pressing plate 2 is drilled with respectively for bolted through hole and the blind hole that is connected for screw at the bottom and the top of L type pressing plate 2 by being bolted on the rolling-mill housing 1; Slide plate 6 and shim pack 8 are fixed on L type pressing plate 2 by screw, and slide plate 7 and shim pack 9 are fixed on the rolling-mill housing 1 by screw, and the nut of sphere bolt 4,5 is protruding sphere, to being contained in the screw on the bearing block 3 perpendicular ribs; The concave spherical surface of ball ring 10,11 forms spherical hinge movingly with the nut of sphere bolt 4,5 respectively, the plane of ball ring 10,11 respectively with the surface of slide plate 6, the 7 formation moving sets that is slidingly matched.

During operation, earlier slide plate 6,7 and

shim pack

8,9 are separately fixed on frame 1 and the L type pressing plate 2 by screw, 4,5 pairs on sphere bolt is contained in the screw on the perpendicular ribs of bearing block 3, then ball ring 10,11 respectively and sphere bolt 4,5 integral body that matches put between the slide plate 6,7, eliminate the axially gap of each parts by the screw thread pair of sphere bolt 4,5 and bearing block 3 perpendicular intercostals at last, realize axial location.

The utility model can satisfy the various deformation requirements of roll in the operation of rolling and the needs that mill roll-gap is adjusted, avoided the sphere bolt to lose efficacy because of a conquassation that contact causes, improved product quality, improved the milling train axial rigidity, prolonged the service life of milling train axial direction positioning device, reduce plant maintenance, saved cost, can be widely used in the axial location of milling train.

Claims

1, a kind of axial direction positioning device of milling train, it comprises rolling-mill housing (1), L type pressing plate (2), bearing block (3), sphere bolt (4), (5), slide plate (6), (7), shim pack (8) and (9), it is characterized in that: described L type pressing plate (2) is fixed by bolts on the rolling-mill housing (1), described sphere bolt (4), (5) be installed on the rolling mill bearing (3), described slide plate (6), (7) and shim pack (8), (9) be screwed respectively at described rolling-mill housing (1) and L type pressing plate (2), described sphere bolt (4), (5) with ball ring (10), (11) adopt movingly described ball ring (10) between, (11) with slide plate (6), (7) adopt between and be slidingly matched.

2, the axial direction positioning device of a kind of milling train according to claim 1, it is characterized in that: the sphere of described ball ring (10), (11) is a concave spherical surface, the nut of described sphere bolt (4), (5) is protruding sphere, and described ball ring (10), (11) form spherical hinge with sphere bolt (4), (5).

3, the axial direction positioning device of a kind of milling train according to claim 1, it is characterized in that: the sphere of described ball ring (10), (11) is protruding sphere, the nut of described sphere bolt (4), (5) is a concave spherical surface, and described ball ring (10), (11) form spherical hinge with sphere bolt (4), (5).

4, the axial direction positioning device of a kind of milling train according to claim 1 is characterized in that: described slide plate (6), (7) are pressed ball ring (10), (11) that can be free to slide and are formed moving sets.