CN218361422U

CN218361422U - Positioning and supporting device for roller changing of straightening machine

Info

Publication number: CN218361422U
Application number: CN202221551959.0U
Authority: CN
Inventors: 刘清华; 刘冰; 丁亚芳; 胡宗
Original assignee: Nanjing Iron and Steel Co Ltd
Current assignee: Nanjing Iron and Steel Co Ltd
Priority date: 2022-06-21
Filing date: 2022-06-21
Publication date: 2023-01-24
Anticipated expiration: 2032-06-21

Abstract

The utility model discloses a positioning and supporting device for roll changing of a straightening machine. The device belongs to the field of metallurgical equipment tools and comprises an upper straightening roll box and a lower straightening roll box, wherein the upper straightening roll box and the lower straightening roll box are respectively provided with two corresponding reference holes on the operation side and the transmission side; positioning and supporting devices are respectively arranged in the corresponding upper roller box reference hole and the lower roller box reference hole; the positioning and supporting device comprises a supporting body, and an upper connecting pin is welded above the supporting body; a lower connecting pin is welded below the supporting body; and two holding handles are arranged on two sides of the supporting body. The utility model discloses a rational in infrastructure, can effectively satisfy the location and the support demand of straightener roll change operation, compare in adopting traditional location support method, this utility model simple structure, low cost dismantles the convenience. The operation time of roller changing of the straightener can be effectively reduced, and the hourly output of the hoister can be effectively reduced.

Description

Positioning and supporting device for roller changing of straightening machine

Technical Field

The utility model belongs to metallurgical equipment frock field relates to a location strutting arrangement for straightener roll change.

Background

At present, in the rolling process of medium and heavy plates, because the rolled plate shape has the problem of poor plate shape such as edge waves, medium waves and the like, the rolled steel plate needs to be subjected to a straightening process, and the straightness of the steel plate is ensured. As the surface condition of the straightening rolls deteriorates, the straightening rolls are replaced after a certain period of time. However, when the straightening roll is replaced, the upper straightening roll frame lifted by the travelling crane is difficult to butt with the lower straightening roll frame due to large shaking. In the existing method, the relative positions of the upper straightening roll frame and the lower straightening roll frame are manually adjusted in the hoisting process, and four steel plates with threaded holes are fixed on the frames of the upper straightening roll and the lower straightening roll by bolts to keep the frames relatively static. The positioning mode needs to install or remove the positioning steel plate through frequently assembling and disassembling bolts, the operation efficiency is low, and after the straightening roller box is assembled and enters the straightening machine, the limited operation space makes the removal work of the positioning steel plate difficult, and the production rhythm is influenced. In addition, at the in-process of roll change, the bolt on the current location steel sheet can receive very big shear stress, in order to prevent the bolt fracture, can place two heavier metal supporting beam on the bearing frame of leveling roller before the straightening roller frame is gone up in the handling and be used for supporting straightening roller frame, complex operation has just increased the operation risk. Therefore, the development of a new roll-changing positioning and supporting device of the straightener is needed.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: the utility model aims at providing a new location strutting arrangement of straightener roll change, according to production facility self structure, through reasonable improvement, reached the function of upper and lower straightener roll roller box quick butt joint and can provide the effect of outrigger at the roll change in-process, solved the problem that exists among the background art.

The technical scheme is as follows: the utility model relates to a positioning and supporting device for roll changing of a straightening machine, which comprises an upper straightening roll box (5) and a lower straightening roll box (6),

the upper straightening roller box and the lower straightening roller box are respectively provided with two reference holes, namely an upper roller box reference hole (8) and a lower roller box reference hole (9), which correspond to each other, on the operation side and the transmission side of the upper straightening roller box and the lower straightening roller box;

and positioning and supporting devices are respectively arranged in the corresponding upper roller box reference hole (8) and the lower roller box reference hole (9).

Further, the positioning and supporting device comprises a supporting body (1),

an upper connecting pin (2) is welded above the support body (1);

a lower connecting pin (3) is welded below the support body (1);

two sides of the supporting body (1) are provided with a holding handle (4).

Furthermore, the transmission sides of the upper straightening roll box (5) and the lower straightening roll box (6) are connected with splines (7) and straightening rolls.

Furthermore, the reference holes (8) of the upper roller box and the reference holes (9) of the lower roller box have the same aperture, the depth of the reference holes is slightly larger than the length of the corresponding connecting pin, and the reference holes are positioned at the top corners of the upper straightening roller box (5) and the lower straightening roller box (6).

Furthermore, the upper connecting pin (2) is cylindrical, the top of the upper connecting pin is hemispherical, and the lower connecting pin (3) is cylindrical and is provided with a chamfer; the holding handles (4) are symmetrically distributed, and anti-skid grains are arranged on the surfaces of the holding handles;

the inner diameter of the upper roller box reference hole (8) is matched with the outer diameter of the upper connecting pin (2);

the inner diameter of the lower roller box reference hole (9) is matched with the outer diameter of the lower connecting pin (3).

Has the beneficial effects that: compared with the prior art, the utility model has the characteristics that: the utility model discloses rational in infrastructure, can effectively satisfy the location and the support demand of straightener roll change operation, compare in adopting traditional location support method, this utility model simple structure, low cost dismantles the convenience. The operation time of roller changing of the straightener can be effectively reduced, and the hourly output of the hoister can be effectively reduced.

Drawings

Fig. 1 is a schematic view of the overall structure of the positioning and supporting device of the present invention;

FIG. 2 is a front view of the positioning and supporting device of the present invention;

FIG. 3 is a schematic view of the original positioning apparatus;

FIG. 4 is a front view of the operation side of the roll box of the straightening machine of the present invention;

FIG. 5 is a right side view of the roll cassette of the middle straightening machine of the present invention;

in the figure, 1 is a support body, 2 is an upper connecting pin, 3 is a lower connecting pin, 4 is a holding handle, and 5 is an upper straightening roll box; 6 is a lower straightening roller box, 7 is a spline, 8 is an upper roller box reference hole, and 9 is a lower roller box reference hole.

Detailed Description

The present invention will be further described with reference to the following examples.

As described in fig. 1-3; the utility model relates to a positioning and supporting device for roller changing of a straightening machine, which comprises an upper straightening roller box 5, a lower straightening roller box 6 and a positioning and supporting device,

the positioning and supporting device comprises a supporting body 1, an upper connecting pin 2, a lower connecting pin 3 and a holding handle 4;

the upper straightening roller box and the lower straightening roller box are respectively provided with two reference holes (an upper roller box reference hole 8 and a lower roller box reference hole 9) on the operation side and the transmission side, the reference holes have the same aperture, the depth is slightly larger than the length of the corresponding connecting pin, and the reference holes are positioned at the top angles of the upper straightening roller box and the lower straightening roller box;

the transmission sides of the upper straightening roll box and the lower straightening roll box are provided with splines 7 which are connected with the straightening rolls;

the positioning and supporting devices are generally in a group of four, and the shapes and the sizes are completely consistent;

the upper connecting pin 2 is welded above the supporting body 1, is cylindrical, has a hemispherical top and is used for connecting an upper roller box reference hole 8 of the upper straightening roller box 5;

the lower connecting pin 3 is welded with the lower part of the support body 1, is cylindrical and is provided with a chamfer angle and is used for connecting a lower roller box reference hole 9 of the lower straightening roller box 6;

the holding handles 4 are positioned at two sides of the supporting body 1 and are symmetrically distributed, and anti-skid grains are arranged on the surfaces of the holding handles 4;

because the distance between the spline sleeves butted with the splines 7 of the upper straightening roll box and the lower straightening roll box is constant H, the height H of the support body 1 needs to meet the requirement that the sum of the distance H1 from the upper surface of the support body 1 to the center of the spline 7, the distance H2 from the lower surface of the support body 1 to the center of the spline 7 and the height H1+ H2+ H = H.

Fig. 4 is a schematic diagram of the operation side of the straightening roller box of the present invention, as shown in the drawing, the present invention provides a positioning and supporting method for roll changing of a straightening machine, wherein in the roll changing operation of the straightening machine, after the push-pull cylinder takes out the old roll box, a new lower straightening roller box 6 is placed on the roll changing platform by a traveling crane, four positioning and supporting devices are respectively inserted into the lower roll box reference holes 9 corresponding to the lower straightening roller box 6 (one in each of the four corners of the roll box frame on the operation side and the transmission side), and the upper straightening roller box 5 is lifted and lifted by the traveling crane right above the upper straightening roller box 5 and slowly falls down; because the upper connecting pin 2 of the positioning and supporting device is a cylinder with a spherical top, the butt joint difficulty can be reduced, so that the upper connecting pin 2 can be easily inserted into the upper roller box reference hole 8 of the upper straightening roller box 5, and the rapid butt joint of the upper straightening roller box and the lower straightening roller box is completed.

After the butt joint is finished, the upper straightening roll box 5 is pressed on the four positioning supporting devices by the dead weight, and the push-pull cylinder pushes the lower straightening roll box 6 to push the whole upper straightening roll box frame and the whole lower straightening roll box frame into the interior of the straightening machine; in the pushing process, the spline 7 of the upper straightening roll box 5 cannot be completely inserted into the spline sleeve, so that the upper straightening roll box 5 cannot be completely positioned after the lower straightening roll box 6 is positioned, and the positioning and supporting device can ensure that the positions of the upper straightening roll box and the lower straightening roll box are constant and do not move relatively; after the upper straightening roll box and the lower straightening roll box are completely in place, the upper straightening roll box 5 is lifted, and the four positioning and supporting devices are taken out to complete roll replacement.

The utility model discloses mainly be applied to in the roll change work of medium plate straightener, provide a location strutting arrangement of roll change work, still play the stable effect of support when having solved straightener roll change time upper and lower roller frame butt joint location difficulty problem. The utility model discloses rational in infrastructure, stability is good, the small investment, convenient to use can guarantee that straightening roller box fixes a position fast about the quick straightening machine, has effectively reduced straightening machine roll change time.

Above only the utility model discloses an it is preferred embodiment, the utility model discloses a scope of protection not only limits in above-mentioned embodiment, and the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that various modifications and decorations can be made by those skilled in the art without departing from the principle of the present invention, and the scope of the present invention should be considered as the protection scope of the present invention.

Claims

1. A positioning and supporting device for roll changing of a straightening machine is characterized by comprising an upper straightening roll box (5) and a lower straightening roll box (6),

2. The positioning and supporting device for roll changing of the straightening machine according to claim 1,

the positioning and supporting device comprises a supporting body (1),

an upper connecting pin (2) is welded above the support body (1);

a lower connecting pin (3) is welded below the support body (1);

two sides of the support body (1) are provided with a holding handle (4);

wherein the upper connecting pin (2) is cylindrical, and the top of the upper connecting pin is hemispherical;

the lower connecting pin (3) is cylindrical and is provided with a chamfer;

the holding handles (4) are symmetrically distributed, and anti-skid grains are arranged on the surfaces of the holding handles;

3. The positioning and supporting device for roll changing of the straightening machine according to claim 1,

the transmission sides of the upper straightening roll box (5) and the lower straightening roll box (6) are both connected with a spline (7) and a straightening roll.

4. The positioning and supporting device for roll changing of the straightener as claimed in claim 1 or 2,

the upper roller box reference hole (8) and the lower roller box reference hole (9) are the same in aperture, slightly larger than the corresponding connecting pin in depth and located at the top corners of the upper straightening roller box (5) and the lower straightening roller box (6).