CN216105654U

CN216105654U - Vertical rolling mill cardan shaft hoisting device

Info

Publication number: CN216105654U
Application number: CN202122155328.9U
Authority: CN
Inventors: 徐平; 李星; 卢弘扬
Original assignee: China First Metallurgical Group Co Ltd
Current assignee: China First Metallurgical Group Co Ltd
Priority date: 2021-09-06
Filing date: 2021-09-06
Publication date: 2022-03-22
Anticipated expiration: 2031-09-06

Abstract

The utility model relates to a universal shaft hoisting device of a vertical rolling mill, which comprises an I-shaped steel beam, wherein the right end of the I-shaped steel beam is provided with a clamping jaw for clamping a universal shaft, and the left end of the I-shaped steel beam is provided with a balancing weight; the cross-shaped target plate is arranged on the bottom bracket; the laser that the laser instrument sent is parallel with the cardan shaft to the distance of laser and cardan shaft axis equals the distance of cross target board center and vertical rolling mill pivot axis. The device well solves the problems of long time consumption, slow construction progress and low working efficiency of the alignment of the cardan shaft and the rotating shaft of the vertical rolling mill.

Description

Vertical rolling mill cardan shaft hoisting device

Technical Field

The utility model belongs to the technical field of installation of vertical rolling mills, and particularly relates to a universal shaft hoisting device for a vertical rolling mill.

Background

In the field of installation of rolling mill equipment in the metallurgical building industry at present, the installation of a vertical rolling mill is a difficult problem, and in the installation of the vertical rolling mill, the installation of a cardan shaft is a key process. The universal shaft of the vertical rolling mill is generally bound by a steel wire rope or a suspender, and then lifted to the height of a butt joint of a speed reducer of the vertical rolling mill by a winch, an electric block or a chain block, and then the universal shaft is pulled to the butt joint by the chain block for locking.

The Chinese patent application 'a special lifting appliance for dismounting and mounting a universal coupling on a vertical rolling mill and a using method thereof (CN 105776044B)' and 'a lifting device and a lifting method for engineering equipment (CN 104803276A)' well realize the lifting of the universal shaft of the vertical rolling mill, but has the following defects in actual construction: the position of the cardan shaft needs to be adjusted repeatedly in the process of aligning the cardan shaft and the rotating shaft of the vertical rolling mill, so that the problems of slow construction progress, long alignment time consumption and low working efficiency are caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a vertical rolling mill cardan shaft hoisting device which well solves the problems of long time consumption, slow construction progress and low working efficiency of cardan shaft and vertical rolling mill rotating shaft alignment.

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

a universal shaft hoisting device of a vertical rolling mill comprises an I-shaped steel beam, wherein a clamping jaw for clamping a universal shaft is arranged at the right end of the I-shaped steel beam, and a balancing weight is arranged at the left end of the I-shaped steel beam; the method is characterized in that: the cross-shaped target plate is arranged on the bottom bracket; the laser that the laser instrument sent is parallel with the cardan shaft to the distance of laser and cardan shaft axis equals the distance of cross target board center and vertical rolling mill pivot axis.

Further, the clamping jaw is a U-shaped clamping jaw.

Furthermore, a layer of rubber is arranged on the inner side of the U-shaped clamping jaw.

Furthermore, an adjusting handle is further arranged on the U-shaped clamping jaw.

Furthermore, the upper portion of I-shaped steel beam is along a row of lugs or bolt holes of length direction for be connected with the lifting rope of loop wheel machine.

Further, the device also comprises at least three guide rods, wherein the guide rods are vertically arranged on the periphery of the rotating shaft of the vertical rolling mill and are uniformly arranged.

Compared with the prior art, the utility model has the following beneficial effects:

(1) the device guides the centering of the universal shaft by arranging the laser and the cross-shaped target plate, and well solves the problems of long time consumption, slow construction progress and low working efficiency in the centering of the universal shaft and the rotating shaft of the vertical rolling mill.

(2) Compared with the traditional installation method, the installation method is simple and convenient, labor is saved, and the working efficiency is greatly improved.

(3) The device is suitable for hoisting universal shafts of various specifications, and has strong universality and high stability.

(4) The device realizes the quick and accurate positioning of the universal shaft by utilizing the principle of three points and the same plane, the adjusting handle, the guide rod and the laser auxiliary positioning mode.

Drawings

FIG. 1 is an overall schematic view of the universal shaft hoisting device of the vertical rolling mill in the embodiment.

FIG. 2 is a partial schematic view of a jaw end of the universal shaft hoisting device of the vertical rolling mill in the embodiment.

Fig. 3 is a partial schematic view at the bottom bracket in the embodiment.

In the drawings, 1, an I-shaped steel beam; 2. a balancing weight; 3. a clamping jaw; 4. a laser; 5. a cross target plate; 6. a guide rod; 7. a cardan shaft; 8. a rotating shaft of the vertical rolling mill; 9. a bottom bracket; 10. the handle is adjusted.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to specific embodiments. It is to be understood that the described embodiments are merely exemplary of the utility model, and not restrictive of the full scope of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1, 2 and 3, the vertical rolling mill cardan shaft hoisting device mainly comprises an I-shaped steel beam 1, a laser 4, a cross-shaped target plate 5 and four guide rods 6.

The right-hand member of I-steel roof beam 1 is equipped with clamping jaw 3 that is used for centre gripping cardan shaft 7, and clamping jaw 3 is U type clamping jaw, and the inboard is equipped with the one deck rubber, damages cardan shaft 7 when preventing to snatch, still is equipped with adjustment handle 10 on the type clamping jaw.

Two groups of balancing weights 2 are hung at the left end of the I-shaped steel beam 1, and the two rows of balancing weights can utilize the principle of three-point force on the same plane, so that the shaking in the hoisting process is avoided.

One row or two rows of lifting lugs or bolt holes are formed in the upper portion of the I-shaped steel beam 1 along the length direction and are used for being connected with a lifting rope of a crane, and the effect of adjusting the balance weight is achieved to a certain degree.

The laser 4 is arranged at the right end of the I-shaped steel beam 1, and laser emitted by the laser 4 is parallel to the universal shaft 7; the cross target plate 5 is installed on the bottom bracket 9, laser emitted by the laser 4 is parallel to the universal shaft 7, and the distance between the laser and the central axis of the universal shaft 7 is equal to the distance between the center of the cross target plate 5 and the central axis of the rotating shaft 8 of the vertical rolling mill.

The guide rods 6 are vertically arranged on the periphery of a rotating shaft 8 of the vertical rolling mill, and as shown in fig. 2, four guide rods 6 are uniformly arranged.

The working process of the device is as follows:

step 1, installing the vertical rolling mill cardan shaft hoisting device in place.

And 2, fixing the laser 4 to the lower part of the I-shaped steel beam 1 to be vertical to the I-shaped steel beam 1, and mounting a cross-shaped target plate 5 on a bottom bracket 9 in advance.

And 3, clamping the universal shaft 7 to be installed by the U-shaped clamping jaw.

And 4, selecting a proper balancing weight 2 to be hung on a lifting lug of the I-shaped steel beam 1 according to the hung cardan shaft 7, and finely adjusting the balancing weight to enable the whole hoisting device to be in a horizontal state by utilizing the principle of three points and the same plane.

And 5, moving the horizontal hoisting device to the lower part of the speed reducer, adjusting by using an adjusting handle 10, and finding the center by using the guide rod 6 and laser assistance.

And 6, disassembling the tool after the installation is finished, and carrying out the next group of installation.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A universal shaft hoisting device for a vertical rolling mill comprises an I-shaped steel beam (1), wherein a clamping jaw (3) for clamping a universal shaft (7) is arranged at the right end of the I-shaped steel beam (1), and a balancing weight (2) is arranged at the left end of the I-shaped steel beam; the method is characterized in that: the cross-shaped target plate is characterized by further comprising a laser (4) and a cross-shaped target plate (5), wherein the laser (4) is installed at the right end of the I-shaped steel beam (1), and the cross-shaped target plate (5) is installed on the bottom bracket (9); the laser emitted by the laser (4) is parallel to the universal shaft (7), and the distance between the laser and the central axis of the universal shaft (7) is equal to the distance between the center of the cross target plate (5) and the central axis of the rotating shaft (8) of the vertical rolling mill.

2. The vertical rolling mill cardan shaft hoisting device according to claim 1, characterized in that: the clamping jaw (3) is a U-shaped clamping jaw.

3. The vertical rolling mill cardan shaft hoisting device according to claim 2, characterized in that: and a layer of rubber is arranged on the inner side of the U-shaped clamping jaw.

4. The vertical rolling mill cardan shaft hoisting device according to claim 2, characterized in that: and an adjusting handle (10) is also arranged on the U-shaped clamping jaw.

5. The vertical rolling mill cardan shaft hoisting device according to claim 1, characterized in that: the upper portion of the I-shaped steel beam (1) is connected with a lifting rope of a crane along a row of lifting lugs or bolt holes in the length direction.

6. The vertical rolling mill cardan shaft hoisting device according to claim 1, characterized in that: the device also comprises at least three guide rods (6), wherein the guide rods (6) are vertically arranged on the periphery of the rotating shaft (8) of the vertical rolling mill and are uniformly arranged.