CN205034964U - A hoist for vertical rolling mill transmission shaft - Google Patents

Abstract

The utility model discloses a hoist for vertical rolling mill transmission shaft comprises the hoist body, the body includes the compensating beam, be provided with first lug on the top surface of compensating beam, compensating beam one end is provided with the snap ring, is provided with the second lug on the bottom surface of its other end, the second lug is connected with the weight box through the hasp, and this hoist can hoist the transmission shaft of different diameter of axle sizes, weight, directly coordinates the use with the overhead traveling crane simultaneously, improves production efficiency, reinforcing factor of safety.

Description

A spreader for vertical rolling mill transmission shaft

technical field

The utility model relates to special equipment for producing rods and wires, in particular to a sling used for a transmission shaft of a vertical rolling mill.

Background technique

At present, the installation and disassembly of the transmission shaft of the vertical rolling mill in the production of rods and wires is mainly tied with steel wire ropes, and the shaft is hoisted to the bottom of the vertical rolling mill reducer by the crane in the workshop, and then the transmission shaft is tilted by using a chain hoist with the crane. Pull into place. If it needs to be dismantled, it needs reverse operation to complete. Such a hoisting method needs to choose wire ropes of different lengths and diameters according to different types of transmission shafts for hoisting, and cable-stayed chain hoists also need to be selected according to different shafts. Once installed, the connection process is very slow.

At present, the main methods of installing or dismantling the transmission of vertical rolling mills are:

1. According to the weight and size of the drive shaft, steel wire ropes of different specifications and lengths are selected for binding hoisting. The wire rope selected in this way is unique, and its length and outer diameter are difficult to reuse.

2. According to the weight and size of the transmission shaft, chain hoists with different specifications should be selected to assist in cable-stayed hoisting. The chain hoist selected in this way is unique, and if you want to reuse it, you need to choose a larger one, which is uneconomical.

3. The wire rope of the drive shaft is prone to wear during installation, and the hand chain hoist needs to be pulled with poor stability and low safety factor.

4. During the installation process of the transmission shaft, the crown block and the chain hoist need to work together. The work efficiency of the chain hoist is low, which leads to a decrease in the installation efficiency of the transmission shaft.

Utility model content

Aiming at the technical problems existing in the prior art, the utility model provides a sling for the drive shaft of a vertical rolling mill. The sling can lift drive shafts with different shaft diameters and weights, and at the same time, it can be directly used in conjunction with the crown block. , Improve production efficiency and enhance safety factor.

In order to solve the technical problems existing in the prior art, the utility model adopts the following technical solutions:

A spreader for a transmission shaft of a vertical rolling mill, which is composed of a spreader body, the body includes a balance beam, a first lifting lug is provided on the top surface of the balance beam, and a snap ring is provided at one end of the balance beam , the bottom surface of the other end is provided with a second lug, and the second lug is connected to the counterweight box through a lock.

There are two first lifting lugs.

Each of the first lifting lugs is located at an equal distance from both ends of the balance beam.

There are two second lifting lugs.

Each of the second lifting lugs is arranged symmetrically with respect to the center line of one of the first lifting lugs.

The counterweight box is provided with a connecting part matched with the second lifting lug.

The inner diameter of the snap ring is consistent with the outer diameter of the transmission shaft.

Beneficial effects of the utility model: First, the utility model can exchange the snap rings according to transmission shafts with different shaft diameters through the snap rings in the movable connection, and can also meet the hoisting of transmission shafts with different weights through the counterweight, which overcomes the Traditional tools have single functions and use cumbersome technical problems. Second, the utility model directly uses the first lifting lug with the crane in the factory building, which increases the safety of operation, reduces labor intensity and improves work efficiency. Third, the utility model has ingenious design, reasonable structure, local materials, and is suitable for popularization and use in a wide range of industries.

Description of drawings

Fig. 1 is a structural schematic diagram of a spreader used for a transmission shaft of a vertical rolling mill according to the present invention.

detailed description

Below in conjunction with accompanying drawing and specific embodiment the utility model is described in further detail.

As shown in Figure 1, the utility model provides a spreader for the transmission shaft of a vertical rolling mill, which is composed of a spreader body, the body includes a balance beam 1, and the top surface of the balance beam 1 is provided with a first Hanging lugs (21, 22), one end of the balance beam 1 is provided with a snap ring 3, and the bottom surface of the other end is provided with a second lifting lug (41, 42), and the second lifting lug (41, 42) passes through The lock buckle 6 is connected with the counterweight box 5 . The snap ring 3 of the present utility model is movably connected to the balance beam 1 through threads. The inner diameter of the snap ring 3 is consistent with the outer diameter of the transmission shaft. The buckle 6 can be connected by a steel wire rope or an iron ring. There are two first lifting lugs (21, 22). Each of the first lifting lugs (21, 22) is equidistant from both ends of the balance beam 1 . There are two second lifting lugs (41, 42). At the same time, a connecting part 7 matching the second lifting lug (41, 42) can also be arranged on the counterweight box 5. The connection part 7 can be in the form of lugs or openings. Each of the second lifting lugs (41, 42) is arranged quasi-symmetrically with respect to the center line of one of the first lifting lugs (21, 22).

Construction process of the utility model:

First, the operator selects a suitable snap ring to connect to the balance beam according to the shaft diameter of the hoisted transmission shaft, and clamps the transmission shaft; second, connects the steel wire rope in the crane in the workshop to the first lifting lug, and the operator Check whether the steel wire rope is connected firmly; thirdly, the operator selects the discarded iron blocks on site according to the weight of the drive shaft and puts them into the counterweight box for counterweight until the balance beam reaches a level that can be kept stable in the air, and then the crane is started. The transmission shaft is hoisted to the designated position.

Although the utility model has been described above in conjunction with the accompanying drawings, the utility model is not limited to the above-mentioned specific embodiments, and the above-mentioned specific embodiments are only illustrative, rather than restrictive. Under the enlightenment of the utility model, without departing from the purpose of the utility model and the protection scope of the claims, many deformations can be made, and these all belong to the protection list of the utility model.

Claims (7)

1. A spreader for a vertical rolling mill transmission shaft, which is composed of a spreader body, characterized in that, the body includes a balance beam, the top surface of the balance beam is provided with a first lifting lug, and the balance beam One end of the beam is provided with a clasp, and the bottom surface of the other end is provided with a second lifting ear, and the second lifting ear is connected to the counterweight box through a lock. 2. A hanger for the transmission shaft of a vertical rolling mill according to claim 1, characterized in that there are two first lifting lugs. 3. A hanger for a transmission shaft of a vertical rolling mill according to claim 1, wherein the distance from each of the first lifting lugs to both ends of the balance beam is equal. 4. A hanger for a vertical rolling mill transmission shaft according to claim 1, characterized in that there are two second lifting lugs. 5 . The hanger for the transmission shaft of a vertical rolling mill according to claim 1 , wherein each of the second lifting lugs is arranged quasi-symmetrically with respect to the center line of one of the first lifting lugs. 6 . A hanger for a transmission shaft of a vertical rolling mill according to claim 1 , wherein a connecting part matching the second lifting lug is arranged on the counterweight box. 7 . 7 . A hanger for a transmission shaft of a vertical rolling mill according to claim 1 , wherein the size of the inner diameter of the snap ring is consistent with the size of the outer diameter of the transmission shaft.