CN214516785U

CN214516785U - Cooling device for roll changing trolley of rolling mill

Info

Publication number: CN214516785U
Application number: CN202120669824.3U
Authority: CN
Inventors: 薛明亮; 傅士刚; 侯俊坤; 杜文芝; 魏文升; 国伟军; 魏镇; 来得志; 王新刚
Original assignee: Shandong Panjin Steel Tube Manufacturing Co ltd
Current assignee: Shandong Panjin Steel Tube Manufacturing Co ltd
Priority date: 2021-04-01
Filing date: 2021-04-01
Publication date: 2021-10-29
Anticipated expiration: 2031-04-01

Abstract

The utility model discloses a cooling device of a roller changing trolley of a rolling mill, which belongs to the field of cooling of a tandem mill roller in seamless steel tube production, and comprises a tandem mill housing, a tandem mill frame, a tandem mill water pipe and a spray head, wherein a plurality of transmission shafts are arranged on the tandem mill housing, one side of the tandem mill frame is a capillary inlet, a capillary outlet at the other side of the tandem mill frame is provided with a quick joint at one end of the tandem mill water pipe, three tandem rolls are arranged in the tandem mill frame, two sides of the three tandem rolls are provided with annular pipes, the annular pipes are connected with three water distribution pipes, the water distribution pipes are connected with the spray head, one side of the tandem mill housing is connected with a water inlet pipe, and the bottom of the tandem mill housing is provided with a sliding plate; the utility model relates to a novelty, the structure is ingenious, changes tandem mill roll dolly water piping into two side intakes, and the water yield increases, and extension roll life has avoided because of the unilateral inflow is little, and the water blocking phenomenon in rolling process is worth promoting.

Description

Cooling device for roll changing trolley of rolling mill

Technical Field

The utility model relates to a tandem mill roll cooling technical field especially relates to a rolling mill roll change dolly cooling device in seamless steel pipe production.

Background

The continuous rolling mill group pierced billet thermal deformation process is an important metal thermal deformation process after piercing the pierced billet, and the process sends the pierced billet penetrated with the mandrel into a continuous rolling mill to finish the deformation processes of reducing diameter and reducing wall, and rolls the pierced billet with the diameter and the wall thickness meeting the process requirements. In the rolling process, due to the fact that the temperature of the hollow billet is high, the temperature rise of the tandem roll in the process can affect the rolling effect and the service life of the tandem roll, and therefore necessary cooling measures need to be taken for the tandem roll to guarantee the cooling effect of the tandem roll. The cooling device of the roller changing trolley of the existing tandem mill is only provided with a cooling water pipe on a rolling mill frame at the inlet side of a hollow billet, so that the tandem mill roller is not uniformly cooled, the whole tandem mill roller cannot be sufficiently cooled, and the service life of the tandem mill roller is seriously limited. Therefore, the reasonable and effective cooling device of the tandem mill is adopted to cool the tandem roll so as to improve the cooling effect and the service life of the tandem roll, and has important significance.

SUMMERY OF THE UTILITY MODEL

The utility model provides a rolling mill roll change dolly cooling device to solve the problem of proposing among the above-mentioned background art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a rolling mill roll change dolly cooling device, includes continuous rolling mill housing, continuous rolling mill frame, continuous rolling mill water pipe and shower nozzle, install many transmission shafts on the continuous rolling mill housing, one side of continuous rolling mill frame is the hollow billet import, the hollow billet export of the opposite side of continuous rolling mill frame, quick-operation joint is installed to the one end of continuous rolling mill water pipe, the inside three roll that links that is provided with of continuous rolling mill frame, the both sides of three roll that links are provided with the annular duct, be connected with three distributive pipes on the annular duct, and be connected with the shower nozzle on the distributive pipe, one side of continuous rolling mill housing is connected with the inlet tube, the slide is installed to the bottom of continuous rolling mill housing.

In a preferred embodiment, three of the continuous rolling rolls are distributed in a circumferential array inside the continuous rolling mill housing.

The utility model has the advantages that:

this kind of rolling mill roll change dolly cooling device is through setting up structures such as ring pipe, distributive pipe, changes tandem mill roll dolly water piping into two sides and intakes, and the water yield increases, extension roll life has avoided because of the unilateral inflow is little, water blocking phenomenon in rolling process, is worth promoting.

Drawings

FIG. 1 is a schematic structural view of a continuous rolling mill housing of the present invention;

FIG. 2 is a schematic structural view of the tandem mill of the present invention;

fig. 3 is a schematic view of the internal structure of the continuous rolling mill of the present invention.

Reference numbers in the figures: 1. a drive shaft; 2. a continuous mill housing; 3. a tandem mill water pipe; 4. a quick coupling; 5. an annular tube; 6. rolling; 7. a water inlet pipe; 8. a continuous mill housing; 9. a slide plate; 10. a spray head; 11. and (7) dividing a water pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, a cooling device for a roll changing trolley of a rolling mill comprises a continuous rolling mill housing 8, a continuous rolling mill frame 2, a continuous rolling mill water pipe 3 and a spray head 10, wherein a plurality of transmission shafts 1 are installed on the continuous rolling mill housing 8, one side of the continuous rolling mill frame 2 is a capillary inlet, the other side of the continuous rolling mill frame 2 is a capillary outlet, a quick connector 4 is installed at one end of the continuous rolling mill water pipe 3, three continuous rolling rolls 6 are arranged inside the continuous rolling mill frame 2, annular pipes 5 are arranged on two sides of the three continuous rolling rolls 6, three water distribution pipes 11 are connected onto the annular pipes 5, the spray head 10 is connected onto the water distribution pipes 11, a water inlet pipe 7 is connected onto one side of the continuous rolling mill housing 8, and a sliding plate 9 is installed at the bottom of the continuous rolling mill housing 8.

Three continuous rolling rolls 6 are distributed in a circumferential array inside the continuous rolling mill housing 2.

The working principle is as follows: the continuous rolling mill roller rolls the perforated hollow billet under the drive of the transmission shaft 1, the bottom of the continuous rolling mill frame 2 is in contact with the sliding plate 9, the continuous rolling mill frame 2 is pushed into the continuous rolling mill housing 8 under the action of a hydraulic system, the water inlet pipe 7 is connected with the quick connector 4, cooling water enters the water distribution pipe 11 through the annular pipe 5, the water distribution pipe 11 is connected with the spray head 10, the cooling water cools the roller 6 through the spray head 10, the water distribution pipe of the continuous rolling mill roller trolley is changed into double-side water inlet, the water quantity is increased, the service life of the roller is prolonged, the phenomenon of water blockage in the rolling process due to the fact that the water inlet quantity at one side is small is avoided, and the continuous rolling mill roller is worthy of popularization.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A cooling device for a roll changing trolley of a rolling mill comprises a continuous rolling mill housing (8), a continuous rolling mill frame (2), a continuous rolling mill water pipe (3) and a spray head (10), it is characterized in that a plurality of transmission shafts (1) are arranged on the continuous mill housing (8), one side of the continuous mill frame (2) is provided with a capillary inlet, the other side of the continuous mill frame (2) is provided with a capillary outlet, one end of a continuous mill water pipe (3) is provided with a quick joint (4), three continuous rolls (6) are arranged in the continuous mill frame (2), two sides of the three continuous rolls (6) are provided with annular pipes (5), the annular pipes (5) are connected with three water distribution pipes (11), and the water distribution pipe (11) is connected with a spray head (10), one side of the continuous rolling mill housing (8) is connected with a water inlet pipe (7), and the bottom of the continuous rolling mill housing (8) is provided with a sliding plate (9).

2. A rolling mill roll change carriage cooling device according to claim 1, characterised in that three of said successive rolling rolls (6) are distributed in a circumferential array inside the successive rolling mill housing (2).