CN213085179U - Hoisting tool for pre-finishing mill roll collar - Google Patents

Abstract

The utility model discloses a roll collar hoisting tool of a pre-finishing mill, which comprises hoisting arms, connecting arms and a roll holding arm, wherein the two connecting arms are hinged into an X shape through a hinge shaft, the upper ends of the two connecting arms are respectively hinged with the lower ends of the two hoisting arms through the connecting shaft, and the upper ends of the two hoisting arms are hinged through the hoisting shafts; a roller embracing arm is vertically fixed at the lower end of the hoisting arm, is arc-shaped and is matched with the annular groove on the roller ring; a compression spring is arranged between the two connecting shafts; a lifting ring is arranged on the lifting shaft. The utility model discloses the structure, simple structure, hoist and mount process safe and reliable, effectual solved current production process, the installation of going on the line is carried to the manpower, and the intensity of labour who leads to is big, the security low and the roll collar piece that probably causes break and the problem of roller collision damage. Compression spring's setting can make the armful of roller arm can realize through very little displacement hugging closely and unclamping the collars, has improved work efficiency.

Description

Hoisting tool for pre-finishing mill roll collar

Technical Field

The utility model relates to a high-speed wire rod production line finishing mill collars lifting device in advance belongs to metallurgical processing technology appurtenance field.

Background

In the production process of high-speed wire rods in the metallurgical industry, the replacement of pre-finishing roll rings is an important basis for replacing high-speed wire rod equipment process pieces in the industry.

Replacing high-speed wire rod pre-finishing roll rings, carrying the roll rings through manual labor when the roll rings are installed on the upper line and the lower line, wherein the self weight of the pre-finishing roll rings is 50-60kg, carrying and installing the pre-finishing roll rings on the line through manual labor, and damaging the lumbar vertebrae and the neck of a person caused by long-time carrying and installing of the person; it may also cause roller ring block cracking and roller shaft collision damage; and also affects the work efficiency.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a finish rolling mill collars lifting device in advance to solve the problem among the prior art.

The utility model discloses a realize through following technical scheme: the utility model provides a finish rolling mill collars lifting device in advance which characterized in that: the roller clamping device comprises two hoisting arms, connecting arms and roller holding arms, wherein the two connecting arms are hinged into an X shape through a hinge shaft, the upper ends of the two connecting arms are respectively hinged with the lower ends of the two hoisting arms through a connecting shaft, and the upper ends of the two hoisting arms are hinged through hoisting shafts; a roller embracing arm is vertically fixed at the lower end of the hoisting arm, is arc-shaped and is matched with the annular groove on the roller ring; a compression spring is arranged between the two connecting shafts; a lifting ring is arranged on the lifting shaft.

Further: and a rubber sleeve is arranged on the outer side of the roller holding arm.

Further: the compression spring is a gas spring.

The utility model has the advantages that: the utility model discloses the structure, simple structure, hoist and mount process safe and reliable, effectual solved current production process, the installation of going on the line is carried to the manpower, and the intensity of labour who leads to is big, the security low and the roll collar piece that probably causes break and the problem of roller collision damage. The compression spring is arranged, so that the holding roller arm can hold and release the roller ring through small displacement, the working efficiency is improved, and the labor intensity is reduced.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a left side view of the structure of fig. 1.

The sequence numbers in the figures illustrate: 1 is a hoisting arm; 2 is a connecting arm; 3 is a roller holding arm; 4 is a hinged shaft, 5 is a connecting shaft, 6 is a hoisting shaft, 7 is a compression spring, 8 is a hanging ring, 9 is an annular groove, and 10 is a roll ring.

Detailed Description

As shown in fig. 1-2, 1, a hoisting tool for a roll collar of a pre-finishing mill comprises two hoisting arms 1, two connecting arms 2 and two roll embracing arms 3, wherein the two connecting arms are hinged and connected in the middle through hinge shafts 4 to form an approximate 'X' shape, the upper ends of the two connecting arms are respectively hinged and connected with the lower ends of the two hoisting arms through connecting shafts 5, and the upper ends of the two hoisting arms are hinged and connected through hoisting shafts 6; the lower end of the hoisting arm is provided with a vertical section which is adaptive to the side wall of the roll collar 10, the lowest end is vertically welded and fixed with a roll embracing arm, and the roll embracing arm is arc-shaped and is matched with an annular groove 9 on the roll collar; a compression spring 7 is arranged between the two connecting shafts, and exerts a force in an opposite direction on the two connecting shafts to keep the two connecting shafts away, so that the lower holding roller shaft is in an open state; and a lifting ring 8 matched with lifting hooks of lifting tools such as cranes and the like is arranged on the lifting shaft. The hoisting arm is perpendicular to the roller holding arm, the plane where the hoisting arm is located is perpendicular to the plane where the roller holding arm is located, the hoisting arm is generally vertically arranged and moves, and the roller holding arm is horizontally arranged and moves.

Preferably: and a rubber sleeve is arranged on the outer side of the roller holding arm, so that the abrasion to a roller ring can be reduced.

Preferably: the compression spring is an air spring, and two ends of the compression spring are respectively connected with the connecting shaft in a threaded connection or a welding connection mode.

Preferably: the compression spring is a spiral spring, a telescopic cylinder is arranged inside or outside the compression spring, or other structures are adopted to keep the compression spring to move in a linear direction. The specific connection mode is a known technology, and can be realized by referring to the existing structure, which is not described in detail.

The utility model discloses the working process of structure as follows: the hanging ring is connected with the hanging hook in a hanging mode, and the compression spring with proper elasticity is selected, so that the opening of the two roller holding arms is slightly smaller than the maximum diameter of the outer portion of the roller ring in a free state. Move this lifting device to the collars top, the control crane makes its decline, when embracing the roller arm and the contact of roller collar, receive the power of holding in the palm because of the lifting device lower part, and upper portion is still descending, thereby make the distance grow of two connecting axle departments, embrace the roller arm opening also grow promptly, thereby make and embrace the roller arm and can overlap in the roller collar outside, when two armful roller arms descend to the annular trench position on the roller collar along the roller collar outer wall, lifting device presents the pine again and exerts the state, at this moment, it diminishes to embrace the roller arm clearance, embrace the roller collar tightly, it rises to control lifting device through the crane, can hoist the roller collar, and at the in-process of hoisting, it is the increase to embrace the power, the condition that can not appear droing, the security is high. In the hoisting process, even if the roller holding arm exceeds the annular groove, hoisting cannot be influenced, and as long as normal hoisting is carried out, the roller holding arm can also slide into the annular groove or directly hoist the roller ring in a clamping mode. When the roll collar is hung in place, the crane descends to put the roll collar down, at the moment, the compression spring extends to enable the roller holding arm to be in a slightly loose state, the whole hoisting tool is in a state to be opened, the hoisting tool can be separated from the roll collar only by slightly lifting the roller holding arm by an operator, the force is small, the moving distance is small, the labor intensity of the operator is relieved, and the efficiency is improved.

Claims (3)

1. The utility model provides a finish rolling mill collars lifting device in advance which characterized in that: the roller clamping device comprises two hoisting arms, connecting arms and roller holding arms, wherein the two connecting arms are hinged into an X shape through a hinge shaft, the upper ends of the two connecting arms are respectively hinged with the lower ends of the two hoisting arms through a connecting shaft, and the upper ends of the two hoisting arms are hinged through hoisting shafts; a roller embracing arm is vertically fixed at the lower end of the hoisting arm, is arc-shaped and is matched with the annular groove on the roller ring; a compression spring is arranged between the two connecting shafts; a lifting ring is arranged on the lifting shaft.

2. The pre-finishing mill roll collar lifting tool of claim 1, characterized in that: and a rubber sleeve is arranged on the outer side of the roller holding arm.

3. The pre-finishing mill roll collar lifting tool of claim 1, characterized in that: the compression spring is a gas spring.

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