CN111744963A - Rolling mill roll changing device and method - Google Patents

Abstract

The invention provides a roller changing device of a rolling mill, which comprises a rack, supporting legs and a roller carrier, wherein the rack comprises two parallel long beams, two parallel C-shaped rails with opposite openings are arranged on the two long beams, rolling wheels are arranged on two sides of the roller carrier for supporting the rack, the rolling wheels are arranged to roll in the C-shaped rails, and the roller carrier is used for loading rollers of the rolling mill to move on the C-shaped rails. The method for disassembling and assembling the roller comprises the steps of placing a roller replacing device of the rolling mill, lifting the roller of the rolling mill and moving the roller carrying vehicle. The roller mounting and dismounting device has the advantages of simple structure, low manufacturing cost and simplicity and convenience in operation, can obviously improve the roller mounting and dismounting efficiency of the rolling mill, saves labor, can improve the safety of construction operation, reduces safety risks and avoids equipment damage.

Description

Rolling mill roll changing device and method

Technical Field

The invention relates to the technical field of equipment maintenance, in particular to a rolling mill roll changing device and method.

Background

The cold rolling mill unit is a very common industrial production device, during the maintenance process of the cold rolling mill unit, the replacement of the tensiometer roller of the cold rolling mill unit is always carried out manually, because the tensiometer roller is narrow in space, a travelling crane cannot be used, the weight of the tensiometer roller is heavy, the operable space is small, the roller replacement operation can only depend on manual picking, moving, lifting and knocking for loading and unloading, time and labor are consumed, the construction period is prolonged, equipment is easy to damage, and great potential safety hazards exist, therefore, a device and a method for replacing the roller of the rolling mill are needed, and the technical problems are solved.

It is to be noted that the information disclosed in the above background section is only for enhancement of understanding of the background of the invention and therefore may include information that does not constitute prior art that is already known to a person of ordinary skill in the art.

Disclosure of Invention

The invention provides a roller changing device of a rolling mill, which is characterized by comprising:

the device comprises a rack, a positioning device and a control device, wherein the rack comprises two parallel long beams, and two parallel C-shaped rails with opposite openings are arranged on the two long beams;

a plurality of support legs for supporting the frame; and

the roller carrying vehicle is used for loading rollers of the rolling mill to move on the C-shaped track;

optionally, the rack further includes two short beams, and the two short beams are respectively fixedly connected with the front ends and the rear ends of the two long beams to form a rectangular frame.

Optionally, the roller carrier is further provided with a groove, and the roller of the rolling mill is placed in the groove.

Optionally, the groove is a V-shaped groove.

Optionally, the roller carrier is further provided with a handle for manually moving the roller carrier.

Optionally, the two long beam side surfaces are respectively provided with a hoisting ring.

Optionally, the rear ends of the two long beams are supported by the two support legs, and the middle parts of the two long beams are respectively supported by the two support legs.

According to the rolling mill roll changing device, a method for changing the roll of the rolling mill comprises the following steps:

and (3) roller dismounting:

s1, hoisting the roller changing device of the rolling mill to the window of the rolling mill, wherein the front ends of two long beams of the rack extend into the window of the rolling mill, and moving the roller carrying vehicle to the position below the rollers of the rolling mill;

s2, hanging the roller of the rolling mill by a hanging chain, and separating the roller of the rolling mill from the rolling mill;

s3, lowering the roller of the rolling mill into the V-shaped groove of the roller carrier by using a hanging chain;

and S4, moving the roller carriers to the rear ends of the two long beams on the two C-shaped rails.

And S5, hanging the roller changing device of the rolling mill and the roller of the rolling mill away.

A step of mounting the roller:

s1, hanging the roller of the rolling mill in the V-shaped groove of the roller carrier;

s2, hoisting the roller changing device of the rolling mill and the rollers of the rolling mill to the window of the rolling mill, wherein the front ends of two long beams of the rack extend into the window of the rolling mill, and moving the roller carrying vehicle to the front ends of the two long beams to enable the rollers of the rolling mill to be positioned below the installation position;

s3, hoisting the roller of the rolling mill to the mounting position by using a hoisting chain to be connected with the rolling mill;

and S4, moving the roller carriers to the rear ends of the two long beams on the two C-shaped rails.

And S5, adjusting the roll changing device of the rolling mill away by using a crane.

The invention has the technical effects that:

the roll changing device and the roll changing method for the rolling mill, provided by the invention, have the advantages of simple structure, low manufacturing cost and simplicity and convenience in operation, the roll dismounting and mounting efficiency of the rolling mill can be obviously improved, the construction period is shortened, the labor is saved, the safety of construction operation is improved, the safety risk is effectively reduced, and the problem of avoiding equipment damage is avoided.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.

FIG. 1 is a front view of a reducer gear shaft and bearing removal assembly of the present invention;

FIG. 2 is a left side view of the reducer gear shaft and bearing removal assembly of the present invention;

FIG. 3 is a schematic view of the assembly of the shaft of the reducer gear and the roller of the bearing dismounting device and the C-shaped track.

Detailed Description

The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and technical effects of the present invention will be fully apparent to those skilled in the art from the disclosure in the specification. The invention is capable of other embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the general spirit of the invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict. The following exemplary embodiments of the present invention may be embodied in many different forms and should not be construed as limited to the specific embodiments set forth herein. It is to be understood that these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the technical solutions of these exemplary embodiments to those skilled in the art.

As shown in fig. 1 to 3, an embodiment of the present invention provides a roll changing device for a rolling mill, which is characterized by comprising a frame 1, a plurality of supporting feet 3 and a roll carrier 4, wherein the frame 1 comprises two long beams 11 parallel to each other, two C-shaped rails 2 parallel to each other and having opposite openings are arranged on the two long beams 11, the supporting feet 3 are used for supporting the frame 1, rollers 41 are arranged on two sides of the roll carrier 4, the rollers 41 are configured to roll in the C-shaped rails 2, the roll carrier 4 is used for loading a roll of the rolling mill to move on the C-shaped rails 2, further, the frame further comprises two short beams 12, the two short beams 12 are respectively connected with the front ends and the rear ends of the two long beams 11 to form a rectangular frame, the roll carrier 4 is further provided with a groove 42, the roll of the rolling mill is placed in the groove 42, the groove 42 is a V-shaped groove, the roller carrier 4 is further provided with a handle 43, the handle 43 is used for manual movement of the roller carrier 4, the side surfaces of the two long beams 11 are respectively provided with a hoisting ring 13, the rear ends of the two long beams 11 are supported by the supporting legs 3, the middle parts of the two long beams 11 are respectively supported by the supporting legs 3, and the supporting legs 3 are not arranged below the front ends of the two long beams 11.

According to the rolling mill roll changing device, the method for changing the roll of the rolling mill comprises the following steps:

and (3) roller dismounting:

s1, hoisting the rolling mill roll changing device to the window of the rolling mill, wherein the front ends of two long beams 11 of the stand 1 extend into the window of the rolling mill, and moving the roll loading vehicle 4 to the position where the front ends of the two long beams 11 are positioned below the rolls of the rolling mill;

s2, hanging the roller of the rolling mill by a hanging chain, and separating the roller of the rolling mill from the rolling mill;

s3, lowering the roller of the rolling mill into the V-shaped 42 groove of the roller carrier by using a hanging chain;

and S4, moving the roller carriers 4 on the two C-shaped rails 2 to the rear ends of the two long beams 11.

And S5, hanging the roller changing device of the rolling mill and the roller of the rolling mill away.

A step of mounting the roller:

s1, hanging the roller of the rolling mill in the V-shaped groove 42 of the roller carrier;

s2, hoisting the roller changing device of the rolling mill and the rollers of the rolling mill to the window of the rolling mill, enabling the front ends of the two long beams 11 of the rack 1 to extend into the window of the rolling mill, and moving the roller carrying vehicle 4 to the front ends of the two long beams 11 to enable the rollers of the rolling mill to be positioned below the installation position;

s3, hoisting the roller of the rolling mill to the mounting position by using a hoisting chain to be connected with the rolling mill;

and S4, moving the roller carriers on the two C-shaped rails 2 to the rear ends of the two long beams 11.

And S5, adjusting the roll changing device of the rolling mill away by using a crane.

Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

The present invention has been described in detail with reference to the specific embodiments and examples, but these are not intended to limit the present invention. Many variations and modifications may be made by one of ordinary skill in the art without departing from the principles of the present invention, which should also be considered as within the scope of the present invention.

Claims (8)

1. A rolling mill roll changing device is characterized by comprising:

the device comprises a rack, a positioning device and a control device, wherein the rack comprises two parallel long beams, and two parallel C-shaped rails with opposite openings are arranged on the two long beams;

a plurality of support legs for supporting the frame; and

the roller carrying vehicle is provided with rollers on two sides and is arranged to roll in the C-shaped track, and the roller carrying vehicle is used for loading rollers of the rolling mill to move on the C-shaped track.

2. The rolling mill roll-changing apparatus according to claim 1, wherein the stand further comprises two short beams fixedly connected to front and rear ends of the two long beams, respectively, to form a rectangular frame.

3. The rolling mill roll-changing apparatus as claimed in claim 1, wherein said roll carriage is further provided with a groove in which a roll of said rolling mill is placed.

4. The rolling mill roll-changing apparatus of claim 3 wherein said grooves are V-grooves.

5. The rolling mill roll changing apparatus as claimed in claim 1, wherein said roll carriage is further provided with a handle for manually moving said roll carriage.

6. The rolling mill roll changing device according to claim 1, wherein the two long beams are provided with hoisting rings on the side surfaces thereof, respectively.

7. The rolling mill roll changing device according to claim 1, wherein the rear ends of the two long beams are supported by the two support legs, respectively, and the middle portions of the two long beams are supported by the two support legs.

8. The rolling mill roll changing apparatus according to claims 1 to 7, a method of the rolling mill roll changing, comprising the steps of:

and (3) roller dismounting:

s1, hoisting the roller changing device of the rolling mill to the window of the rolling mill, wherein the front ends of two long beams of the stand extend into the window of the rolling mill, and moving the roller carrying vehicle to the position where the front ends of the two long beams are positioned below the rollers of the rolling mill;

s2, hanging the roller of the rolling mill by a hanging chain, and separating the roller of the rolling mill from the rolling mill;

s3, lowering the roller of the rolling mill into the V-shaped groove of the roller carrier by using a hanging chain;

and S4, moving the roller carriers to the rear ends of the two long beams on the two C-shaped rails.

And S5, hanging the roller changing device of the rolling mill and the roller of the rolling mill away.

A step of mounting the roller:

s1, hanging the roller of the rolling mill in the V-shaped groove of the roller carrier;

s2, hoisting the roller changing device of the rolling mill and the rollers of the rolling mill to the window of the rolling mill, wherein the front ends of two long beams of the rack extend into the window of the rolling mill, and moving the roller carrying vehicle to the front ends of the two long beams to enable the rollers of the rolling mill to be positioned below the installation position;

s3, hoisting the roller of the rolling mill to the mounting position by using a hoisting chain to be connected with the rolling mill;

and S4, moving the roller carriers to the rear ends of the two long beams on the two C-shaped rails.

And S5, adjusting the roll changing device of the rolling mill away by using a crane.

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