CN214977809U

CN214977809U - An elastic mechanism for repairing inner holes of continuous casting roll sleeves

Info

Publication number: CN214977809U
Application number: CN202121532291.0U
Authority: CN
Inventors: 谢庆忠
Original assignee: Masteel Heavy Machinery Manufacturing Co Of Anhui
Current assignee: Masteel Heavy Machinery Manufacturing Co Of Anhui
Priority date: 2021-07-06
Filing date: 2021-07-06
Publication date: 2021-12-03
Anticipated expiration: 2031-07-06

Abstract

The utility model discloses an elastic mechanism for repairing the inner hole of a roll sleeve of a continuous casting roll, and relates to the technical field of repairing a continuous casting roll. The utility model relates to an elastic mechanism for repairing the inner hole of a continuous casting roll sleeve, comprising a continuous casting roll sleeve, wherein an inner hole is vertically opened in the middle of the continuous casting roll sleeve along the length direction, and the inner hole is vertically opened in the middle of the continuous casting roll sleeve. The inner wall formed between the hole and the roll cover of the continuous casting roll is provided with a keyway along the length direction of the roll cover of the continuous casting roll. The keyway is fitted with an elastic mechanism, and the material of the elastic mechanism is nylon plate. Its shape is a block-like structure, and it has an interference fit with the keyway to ensure that the elastic mechanism fully fills the keyway, avoids the elastic mechanism from falling off during processing, and is easy to install and disassemble, and no additional fastening device is required; the elastic After the mechanism is installed in the keyway, its lower surface is flush with the inner side of the inner wall, so that the machining surface of the inner hole becomes a continuous machining surface, thereby reducing the vibration of the tool caused by the keyway when machining the inner hole.

Description

Elastic mechanism for repairing inner hole of roller sleeve of continuous casting roller

Technical Field

The utility model belongs to the technical field of the continuous casting roller restoration technique and specifically relates to a be used for prosthetic elastic mechanism of continuous casting roller shell hole that says so.

Background

The continuous casting roll is an important spare part of a rolling mill, is used for rolling various plates on a continuous casting production line, needs to be offline for repairing after being used for a certain number of times, and is used for replacing wear parts and frequently-consumed parts of a roll set. At present, the method for repairing the roll surface of the continuous casting roll is to perform overlaying welding on the worn roll surface and then use the roll surface after machining; the inner hole of the continuous casting roller is corroded frequently to increase the aperture and cause out-of-roundness tolerance, and the aperture is small, so that the hole is difficult to weld in the hole to meet the requirement, so that the insert sleeve is generally hot-assembled at present and then welded from the end face, and the requirements of the size of the inner hole, the non-coaxiality of the inner hole and the roller surface and the like are ensured through machining after welding. The method has complex processing technology and higher difficulty, and the cooling water in the hole leaks from the welding seam along the excircle of the bushing due to frequent welding defects. In addition, when the bore is worn again, it is particularly troublesome to remove and replace the insert.

Through search, relevant patents are disclosed at present for solving the defects of the processing technology. For example, the Chinese patent application number is: 2011204540335, application date is: in 2011, 16 days in 11 months and an authorized bulletin day are as follows: 7, 11 months in 2012, a novel bushing for repairing an inner hole of a continuous casting roller is disclosed, wherein the bushing is a stepped shaft with a central hole, and is matched with the inner hole of the continuous casting roller; the smaller end of the diameter of the embedding sleeve is provided with a plurality of grooves along the radial direction, and sealing rings are arranged in the grooves; the larger diameter end of the insert sleeve is provided with a through hole along the axial direction, and a screw passes through the through hole, so that the insert sleeve is tightly pressed on the end surface of the continuous casting roller. When the inner hole of the continuous casting roller needs to be repaired due to abrasion, the sealing ring is firstly placed into the groove of the novel bushing, then the novel bushing is placed into the inner hole of the continuous casting roller, the bushing is tightly pressed on the end surface of the continuous casting roller by using a screw, and the sealing is reliable. Because the welding is not needed in the process of placing the bushing, the water leakage situation can not occur. However, because of the key slot in the inner hole structure of the continuous casting roll, when the inner hole is machined, the key slot is discontinuously machined, so that the vibration of the tool is caused, the machining quality is affected, and meanwhile, the tool is impacted, and the tool loss is higher than the average loss level.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved by the utility model

To the vibration scheduling problem that the cutter caused because of the keyway when processing the hole, the utility model discloses a be used for continuous casting roller shell hole prosthetic elastic mechanism through the elastic mechanism of packing into in the keyway at the hole of continuous casting roller shell to make the hole machined surface become a continuous machined surface, reduced the vibration that the cutter caused because of the keyway when processing the hole, solved because of the unqualified quality reworking scheduling problem that causes of hole.

2. Technical scheme

In order to achieve the above purpose, the utility model provides a technical scheme does:

the utility model provides a be used for prosthetic elastic mechanism of continuous casting roller shell hole, includes the continuous casting roller shell, the middle part of continuous casting roller shell is along its length direction is vertical has seted up the hole, follow on the inner wall that forms between hole and the continuous casting roller shell the keyway has been seted up to the length direction of continuous casting roller shell, elastic mechanism is equipped with to the adaptation formula in the keyway to fill up keyway vacancy department, make the hole machined surface become a continuous machined surface, reduced the vibration that the cutter caused because of the keyway when processing the hole, solved because of the unqualified quality reworking scheduling problem that causes of hole.

Further technical scheme, after the elastic mechanism is installed in the key groove, the lower surface of the elastic mechanism is parallel and level with the inner side surface of the inner wall, the impact force of the lathe tool on the key groove position caused by discontinuous processing is avoided, and the loss of the lathe tool is reduced.

According to a further technical scheme, the elastic mechanism is of a block structure and is in interference fit with the key groove, and the width of the elastic mechanism is 0.5mm larger than that of the key groove; the thickness of the elastic mechanism is 0.5mm thicker than that of the key groove, so that the key groove is fully filled with the elastic mechanism, and the elastic mechanism is prevented from falling off during machining.

According to the technical scheme, the length of the elastic mechanism is the same as that of the key groove, the front end of the elastic mechanism is flush with the front end of the continuous casting roller sleeve, and the continuous casting roller sleeve and the elastic mechanism are machined on a lathe together during machining.

Further technical scheme, the material of elastic mechanism is the nylon board to effectively guarantee elastic mechanism's elasticity, its installation and dismantlement of being convenient for, and need not extra fastener.

3. Advantageous effects

Adopt the technical scheme provided by the utility model, compare with prior art, have following beneficial effect:

(1) the utility model discloses an elastic mechanism for repairing inner holes of a continuous casting roller sleeve, the elastic mechanism is installed in a key groove formed in the inner wall of the continuous casting roller sleeve in a matching manner, so that an inner hole processing surface is changed into a continuous processing surface, thereby reducing the vibration of a cutter caused by the key groove when processing an inner hole, and solving the problems of quality rework and the like caused by unqualified inner holes;

(2) the utility model discloses an elastic mechanism for continuous casting roller shell hole is restoreed, the lower surface of elastic mechanism is parallel and level with the medial surface of inner wall mutually, has avoided the lathe tool to take place the impact force that discontinuous processing received in the keyway position, has reduced the loss of lathe tool;

(3) the utility model discloses an elastic mechanism for repairing inner holes of a roller sleeve of a continuous casting roller, which is of a block structure and is in interference fit with a key groove so as to ensure that the key groove is fully filled with the elastic mechanism and avoid dropping the elastic mechanism during processing;

(4) the utility model discloses a be used for prosthetic elastic mechanism of continuous casting roller shell hole, elastic mechanism's material is the nylon board, in order effectively to guarantee elastic mechanism's elasticity, its installation and dismantlement of being convenient for, and need not extra fastener.

Drawings

FIG. 1 is a schematic perspective view of a roll shell of a continuous casting roll;

FIG. 2 is a schematic view of a longitudinal cutting structure of the elastic mechanism of the present invention installed in the roll shell of the continuous casting roll;

fig. 3 is a right side view of fig. 2.

In the figure: 1-continuous casting roller sleeve; 2-an elastic mechanism; 11-inner bore; 12-an inner wall; 13-key way.

Detailed Description

For a further understanding of the present invention, reference will be made to the following detailed description taken in conjunction with the accompanying drawings.

Example 1

The utility model provides a be used for prosthetic elastic mechanism of continuous casting roller shell hole, as shown in fig. 1 ~ 2, including continuous casting roller shell 1, the vertical hole 11 of having seted up of its length direction is followed at the middle part of continuous casting roller shell 1, follow on the inner wall 12 that forms between hole 11 and the continuous casting roller shell 1 the keyway 13 has been seted up to the length direction of continuous casting roller shell 1, elastic mechanism 2 is equipped with to the adaptation formula in the keyway 13 to filled up keyway 13 vacancy department, made hole 11 machined surface become a continuous machined surface, reduced the vibration that the cutter caused because of keyway 13 when processing hole 11, solved because of the quality reworking scheduling problem that hole 11 is unqualified to cause. According to the estimation of the applicant, the economic benefits are generated: the quality reworking caused by the inner hole machining quality in the whole year of 2020 is 129 pieces, 10.7 pieces per month on average, according to the surfacing cost (including manual work) of 554 elements/piece and the machining cost (including cutting tools and manual work) of 197 elements/piece, the cost is reduced by 8073 elements per month, and the cost is reduced by 9.68 ten thousand elements per year.

Example 2

The basic structure of the elastic mechanism for repairing the inner hole of the roll sleeve of the continuous casting roll is the same as that of the embodiment 1, and the difference and the improvement are that: as shown in fig. 3 and table 1, the elastic mechanism 2 is a block-shaped structure, and is in interference fit with the key slot 13, and the width of the elastic mechanism is 0.5mm wider than that of the key slot 13; the thickness of the elastic mechanism is 0.5mm thicker than that of the key groove 13, so that the key groove 13 is fully filled with the elastic mechanism 2, and the elastic mechanism 2 is prevented from falling off during machining.

The dimensions of the elastic means 2 are shown in the following table:

in this embodiment, the length of the elastic means 2 is the same as the length of the key groove 13, and the tip of the elastic means 2 is flush with the tip of the continuous casting roll shell 1, and the continuous casting roll shell 1 is machined on a lathe together with the elastic means 2 during machining. As shown in fig. 2, after the elastic mechanism 2 is installed in the key groove 13, the lower surface of the elastic mechanism is flush with the inner side surface of the inner wall 12, so that the impact force of the turning tool on the key groove 13 caused by discontinuous processing is avoided, the loss of the turning tool is reduced, and the cost reduction and the efficiency improvement of production are facilitated.

Example 3

The basic structure of the elastic mechanism for repairing the inner hole of the roll sleeve of the continuous casting roll is the same as that of the embodiment 2, and the difference and the improvement are that: the elastic mechanism 2 is made of a nylon plate, so that the elasticity of the elastic mechanism 2 is effectively guaranteed, the elastic mechanism is convenient to mount and dismount, and an additional fastening device is not needed.

The present invention and its embodiments have been described above schematically, and the description is not limited thereto, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching of the present invention, without departing from the inventive spirit of the present invention, the person skilled in the art should also design the similar structural modes and embodiments without creativity to the technical solution, and all shall fall within the protection scope of the present invention.

Claims

1. The utility model provides a be used for prosthetic elastic mechanism of continuous casting roller shell hole which characterized in that: including continuous casting roller shell (1), hole (11) have been vertically seted up along its length direction in the middle part of continuous casting roller shell (1), follow on inner wall (12) that form between hole (11) and the continuous casting roller shell (1) keyway (13) have been seted up to the length direction of continuous casting roller shell (1), elastic mechanism (2) are equipped with to adaptation formula in keyway (13).

2. The elastic mechanism for repairing the inner hole of the roll sleeve of the continuous casting roll according to claim 1, which is characterized in that: after the elastic mechanism (2) is arranged in the key groove (13), the lower surface of the elastic mechanism is flush with the inner side surface of the inner wall (12).

3. The elastic mechanism for repairing the inner hole of the roll sleeve of the continuous casting roll as claimed in claim 2, wherein: the elastic mechanism (2) is of a block structure and is in interference fit with the key groove (13), and the width of the elastic mechanism is 0.5mm wider than that of the key groove (13); the thickness of the key groove is 0.5mm thicker than that of the key groove (13).

4. The elastic mechanism for repairing the inner hole of the roll sleeve of the continuous casting roll as claimed in claim 3, wherein: the length of the elastic mechanism (2) is the same as that of the key groove (13), and the front end of the elastic mechanism (2) is flush with the front end of the continuous casting roller sleeve (1).

5. The elastic mechanism for repairing the inner hole of the roll shell of the continuous casting roll according to any one of claims 1 to 4, wherein: the elastic mechanism (2) is made of a nylon plate.