CN214976664U

CN214976664U - Bearing box for roller of cold rolling mill

Info

Publication number: CN214976664U
Application number: CN202120835140.6U
Authority: CN
Inventors: 张新超; 孟军; 张来; 于镇锋
Original assignee: Chalco He'nan Luoyang Aluminum Processing Co ltd
Current assignee: Chalco He'nan Luoyang Aluminum Processing Co ltd
Priority date: 2021-04-22
Filing date: 2021-04-22
Publication date: 2021-12-03
Anticipated expiration: 2031-04-22

Abstract

A bearing box for a roller of a cold rolling mill comprises a bearing box body, wherein a rectangular convex strip protruding out of the corresponding side wall of the bearing box body is respectively arranged outside two side walls of the bearing box body, and a round blind hole is respectively arranged on two sides of the rectangular convex strip in the vertical direction; be provided with a connecting piece in the blind hole, the connecting piece includes circular connection bottom and connects the rectangular shape portion of propping on circular connection bottom, and the laminating is provided with a contact welt on rectangular shape portion of propping, contact welt salient in the corresponding side of rectangle sand grip, not only can realize the limited support of bearing box and bending roll jar to when the cold rolling mill work appears the supporting part wearing and tearing for a period, only need pull down the contact welt and change can, the maintenance dismouting is easy, maintenance simple process, cost of maintenance is low.

Description

Bearing box for roller of cold rolling mill

Technical Field

The utility model belongs to the technical field of the cold rolling mill, especially, relate to a bearing box for cold rolling mill roll.

Background

In the actual production of cold rolling mills, the actual crown and deflection of the rolls need to be controlled in order to obtain a better strip profile. In the prior art, a hydraulic roll bending system is widely adopted by a cold rolling mill to adjust the actual deflection of a roll, the main mode is that a lug at the end part of a roll bending cylinder is hydraulically driven to be in contact with bearing boxes at two ends of the roll of the cold rolling mill, and the actual deflection of the roll of the cold rolling mill is adjusted by changing the acting force on the bearing boxes at the two ends. However, in the prior art, the structural design of the bearing box matched with the end bump of the bending cylinder is not reasonable enough, so that after the cold rolling mill runs for a long time, the contact surface of the relevant part of the bearing box and the bump of the bending cylinder is gradually worn, the contact surface of the relevant part of the bearing box and the bump of the bending cylinder is inconsistent in height, the acting force of the bending cylinder is insufficient, the end part of the roller is damaged, the plate shape is poor, and the maintenance is needed, the process is complex, and the maintenance cost is high.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a bearing box for cold rolling mill roll.

In order to realize the purpose, the utility model discloses the technical scheme who adopts is: a bearing box for a roller of a cold rolling mill comprises a bearing box body, wherein the bearing box body is provided with a bearing mounting hole used for being matched with a roller bearing, the cross section of the bearing box body is rectangular, rectangular convex strips protruding out of corresponding side walls of the bearing box body are respectively arranged outside two side walls of the bearing box body in an extending mode along the direction parallel to the bearing mounting hole, circular blind holes are respectively arranged on the two sides of the rectangular convex strips in the vertical direction and are perpendicular to the corresponding side walls of the bearing box body, and one part of each blind hole is located on each rectangular convex strip and is called an arc-shaped part of each blind hole on each rectangular convex strip; the connecting piece comprises a circular connecting bottom and a strip-shaped supporting part connected to the circular connecting bottom, the circular connecting bottom is matched with the bottom of the blind hole and fixedly connected with the corresponding side wall of the bearing box body through a countersunk head bolt, the periphery of the strip-shaped supporting part is arc-shaped, the radius of the arc-shaped supporting part is the same as that of the blind hole, the center line of the arc-shaped center line is overlapped with that of the arc-shaped part of the blind hole on the rectangular convex strip, the center angle of the arc-shaped center line of the periphery of the strip-shaped supporting part is smaller than that of the arc-shaped part of the blind hole on the rectangular convex strip and is equal to that of the blind hole, a contact lining plate is attached to the strip-shaped supporting part and fixedly connected with the strip-shaped supporting part through the countersunk head bolt, and the contact lining plate protrudes out of the corresponding side face of the rectangular convex strip.

Preferably, the contact liner plate is the arc unanimous with the blind hole relevant position near one side of rectangular shape support portion with the both ends that rectangle sand grip extending direction is unanimous, the contact liner plate is provided with the chamfer with one side that rectangular shape support portion was kept away from to the both ends that rectangle sand grip extending direction is unanimous.

The connecting piece is made of No. 45 steel, and the contact lining plate is made of aluminum bronze.

Has the advantages that:

according to the utility model discloses, be provided with the rectangle sand grip on the lateral wall of bearing box body to set up the blind hole on the lateral wall of bearing box body, set up the connecting piece in the blind hole, be connected with the connecting piece and set up the contact welt, thereby not only can realize the limited support of bearing box and bending roll jar, and when the wearing and tearing of support position appear when cold rolling mill work a period, only need tear the contact welt open change can, the maintenance dismouting is easy, maintenance simple process, cost of maintenance is low.

Drawings

Fig. 1 is a schematic view of the installation state structure of the present invention.

Fig. 2 is a left side view of fig. 1.

Fig. 3 is an enlarged view of a portion a in fig. 1.

Fig. 4 is a view from B-B in fig. 3.

Fig. 5 is a schematic view of the working state principle of the present invention.

Fig. 6 is a schematic view of another working state principle of the present invention.

The labels in the figure are: 1. the bearing box comprises a bearing box body, 2, rectangular convex strips, 3, a connecting piece, 301, a circular connecting bottom, 302, a long strip supporting part, 4, a countersunk bolt, 5, a countersunk screw, 6, a contact lining plate, 601, a chamfer, 7 and a cold rolling mill roller.

Detailed Description

The following detailed description of the present invention is provided with reference to the accompanying drawings and examples, but not to be construed as limiting the present invention in any way.

Referring to the attached drawings, the bearing box for the roller of the cold rolling mill comprises a bearing box body 1, wherein the bearing box body 1 is provided with a bearing mounting hole used for being matched and mounted with a roller bearing.

In fig. 1 and 2, the cold rolling mill roll has been supported by bearings in bearing mounting holes of the bearing housing body 1.

The cross section of the bearing box body 1 is rectangular, and rectangular convex strips 2 protruding out of the corresponding side walls of the bearing box body 1 are respectively arranged outside the two side walls of the bearing box body 1 in an extending mode along the direction parallel to the bearing mounting hole (in the figure 1, namely parallel to the cold rolling rod).

Both sides in the upper and lower direction of rectangle sand grip 2 all are provided with a circular shape blind hole, and the central axis of blind hole sets up with the corresponding lateral wall of bearing box body 1 is perpendicular mutually, and a part of blind hole is located rectangle sand grip 2, and this part is called the arc part of blind hole on the rectangle sand grip.

The connecting piece 3 is arranged in the blind hole, the connecting piece 3 comprises a round connecting bottom 301 and a strip-shaped supporting part 302 connected to the round connecting bottom 301, and the round connecting bottom 301 is matched with the bottom of the blind hole and is fixedly connected with the corresponding side wall of the bearing box body 1 through a countersunk head bolt 4.

The peripheral surface of the outer side of the strip-shaped supporting part 301 is arc-shaped (peripheral arc for short), the radius of the arc-shaped supporting part is the same as that of the blind hole, the center line of the arc-shaped center line is overlapped with that of the arc-shaped part of the blind hole on the rectangular convex strip, the center angle of the arc-shaped periphery of the strip-shaped supporting part 302 is smaller than that of the arc-shaped part of the blind hole on the rectangular convex strip and is equal to that of the blind hole, a contact lining plate 5 is attached to the strip-shaped supporting part 302, and the contact lining plate 6 is fixedly connected with the strip-shaped supporting part 301 through a countersunk head screw 5.

The contact lining 6 protrudes from the corresponding side surface of the rectangular convex strip 2.

One side that contact

welt

6 and 2 unanimous both ends of extension direction of rectangle sand grip are close to rectangular shape support portion 302 is the arc unanimous with the blind hole relevant position, one side that rectangular shape support portion 302 was kept away from to the both ends that

contact welt

6 and 2 unanimous extension directions of rectangle sand grip are provided with chamfer 601.

The connecting piece 3 is made of No. 45 steel, and the contact lining plate 6 is made of aluminum bronze.

The utility model discloses when using, when needs make two adjacent cold rolling mill roll middle parts to being close to each other, as shown in fig. 5, adopt two bending roll jars 8, four lugs of every bending roll jar correspond the setting with four contact liners of two cold rolling mill roll 7 same end two bearing boxes of upper and lower adjacent respectively, stretch out when bending roll jar 8, two contact liners atress directions that are located between two upper and lower bearing boxes are shown as the arrow in the picture, promote two bearing boxes towards the direction of keeping away from each other, thereby make two adjacent cold rolling mill roll middle parts to being close to each other.

As shown in fig. 6, when the middle portions of two adjacent cold rolling mill rolls are required to be away from each other, the bending cylinder 8 is contracted, so that the two contact lining plates positioned at the outer sides of the upper bearing box and the lower bearing box are forced in directions as shown by arrows in the figure, the two bearing boxes are pushed in directions of approaching each other, and the middle portions of the two adjacent cold rolling mill rolls are away from each other to form a certain deflection, so as to meet the preset requirement.

The above embodiments are only intended to illustrate the technical solution of the present invention and not to limit the same, and it should be understood by those of ordinary skill in the art that the embodiments of the present invention can be modified or replaced with equivalents with reference to the above embodiments, and any modifications or equivalent substitutions that do not depart from the spirit and scope of the present invention are all within the scope of the claims of the present application.

Claims

1. The utility model provides a bearing box for cold rolling mill roll which characterized in that: the roller bearing box comprises a bearing box body (1), wherein the bearing box body (1) is provided with a bearing mounting hole used for being mounted in a matched mode with a roller bearing, the cross section of the bearing box body (1) is rectangular, rectangular convex strips (2) protruding out of corresponding side walls of the bearing box body (1) are arranged outside two side walls of the bearing box body (1) in an extending mode along the direction parallel to the bearing mounting hole, circular blind holes are formed in the two sides of the rectangular convex strips (2) in the vertical direction and are perpendicular to the corresponding side walls of the bearing box body (1), one part of each blind hole is located on each rectangular convex strip (2) and is called as an arc-shaped part of the blind hole on each rectangular convex strip; a connecting piece (3) is arranged in the blind hole, the connecting piece (3) comprises a round connecting bottom (301) and a strip-shaped supporting part (301) connected to the round connecting bottom, the round connecting bottom (301) is matched with the bottom of the blind hole and fixedly connected with the corresponding side wall of the bearing box body (1) by a countersunk head bolt (4), the periphery of the strip-shaped supporting part (302) is arc-shaped, the radius of the arc-shaped supporting part is the same as that of the blind hole, the arc center line is superposed with the arc center line of the blind hole on the rectangular convex strip, the center angle of the arc of the periphery of the strip-shaped supporting part is smaller than the center angle of the arc of the blind hole on the rectangular convex strip, a contact lining plate (5) is arranged on the strip-shaped supporting part (302) in an attaching way, the contact lining plate (6) is fixedly connected with the strip-shaped supporting part (301) through a countersunk head screw (5); the contact lining plate (6) protrudes out of the corresponding side surface of the rectangular convex strip (2).

2. The bearing housing for the roll of the cold rolling mill according to claim 1, characterized in that: one side that contact welt (6) and rectangle sand grip (2) extending direction unanimous both ends are close to rectangular shape support portion (302) is the arc unanimous with blind hole relevant position, one side that rectangular shape support portion (302) was kept away from at both ends that contact welt (6) and rectangle sand grip (2) extending direction unanimous is provided with chamfer (601).

3. The bearing housing for the roll of the cold rolling mill according to claim 1, characterized in that: the connecting piece (3) is made of No. 45 steel, and the contact lining plate (6) is made of aluminum bronze.