CN202824143U

CN202824143U - Piercing mill roller adjustment mechanism

Info

Publication number: CN202824143U
Application number: CN 201220491120
Authority: CN
Inventors: 张志玉; 那继业; 李刚; 周长生; 程永红
Original assignee: Liaocheng Xin Pengyuan Metal Manufactures Ltd
Current assignee: Liaocheng Xin Pengyuan Metal Manufactures Ltd
Priority date: 2012-09-24
Filing date: 2012-09-24
Publication date: 2013-03-27
Anticipated expiration: 2022-09-24

Abstract

A piercing mill roller adjustment mechanism comprises a piercing mill body. A roller box and a roller are arranged in the piercing mill body. The roller is arranged in the roller box. The piercing mill roller adjustment mechanism is characterized in that the upper portion and the lower portion of the piercing mill body are respectively provided with a sliding board. The roller box is capable of moving along the transverse direction through the sliding boards. Movement between the sliding boards and the piercing mill body is conducted through a linear sliding way. A pair of screw rods are extended outwards from outer sides of the roller box. The screw rods are in threaded fit with the piercing mill body. A worm-gear speed reducer is arranged at the outer end of each screw rod. The worm-gear speed reducer is in sliding key fit with the screw rod. A worm in each worm-gear speed reducer is driven by a motor through chain transmission. An adjustment mode of the piercing mill roller adjustment mechanism is that a mechanic type worm-gear worm is matched with the liner sliding way to adjust, and therefore the aims of micro-adjustment and gap-adjustment are achieved, quality of rolling seamless steel tubes is good and eccentricity and wall thickness are respectively controlled effectively.

Description

A kind of roll piercing mill roll governor motion

Technical field

The utility model relates to the roll seamless steel tube equipment technical field, specifically a kind of roll piercing mill roll governor motion.

Background technology

In the process of rolling large-scale steel pipe, generally needing to use in addition, two Rolling rollers carry out grinding, and cooperate the pierced billet pipe to carry out pierced billet, a kind of roll seamless steel tube equipment of for example announcing among the Chinese patent CN200780041676.3, the concept of the two Rolling rollers that wherein just use, but the roll mill of announcing in this patent is to control eccentric and rolling thickness by the mode of software.

The utility model content

The purpose of this utility model is to provide a kind of roll piercing mill roll governor motion, by the purpose of mechanical regulative mode realization adjusting roll location, reaches the purpose of control and regulation two Rolling roller spacings.

The technical scheme in the invention for solving the technical problem is: a kind of roll piercing mill roll governor motion, comprise the roll mill body, in the roll mill body, be provided with roll-box and roll, roll is installed in the roll-box, it is characterized in that, described roll mill body slide plate is installed respectively up and down, described roll-box can be along horizontal slip by slide plate, moves by linear ramp between described slide plate and the roll mill body; Extend outward a pair of leading screw in the outside of described roll-box, described leading screw and roll mill body carry out threaded engagement, a worm reduction gear is installed in the outer end of screw mandrel, and is the feather key cooperation between leading screw and the worm reduction gear, and the worm screw in the described worm reduction gear passes through the chain transmission by motor-driven.

Further, described chain transmission is the double chain wheel transmission.

The beneficial effects of the utility model are: regulative mode of the present utility model is that mechanical turbine and worm cooperates line slide rail to regulate, can realize adjusting the purpose of micro-adjusting play, the better quality of rolling seamless steel pipe out, eccentric and wall thickness has all obtained effective control.

Description of drawings

Fig. 1 is front view of the present utility model;

Fig. 2 is left hand view of the present utility model;

Fig. 3 is top view of the present utility model;

Among the figure: 1 support, 2 guide pin bushings, 3 rolls, 4 roll-boxes, 5 slide plates, 6 worm screws, 7 worm gears, 8 rotating shafts, 9 double chain wheels, 10 drive motors, 11 leading screws, 12 threaded engagement, 13 feather keys cooperate.

The specific embodiment

Such as Fig. 1～shown in Figure 3,

A kind of roll piercing mill roll governor motion comprises the roll mill body, the roll mill body by support 1, guide pin bushing 2 and about two rolls 3 form, finish action with the rolling formation seamless steel pipe of round steel billet by the interoperation of roll and top.Be provided with roll-box 4 and roll 3 in the roll mill body, roll is installed in the roll-box.

The utility model is exactly the architecture advances for the part of two Rolling rollers:

At first at roll mill body upper and lower sides slide plate 5 is installed respectively, slide plate 5 laterally is installed on the support, connect by line slide rail between slide plate 5 and the roll-box 4, can horizontally slip, and in roll-box 4, be provided with the roll installing hole, by bearing roll 3 is installed in the installing hole, so roll-box can slide, and is driven the adjusting of roll shop building distance.Fix a pair of leading screw 11 at the lateral surface of roll-box, it is threaded engagement 12 between leading screw and the support, leading screw 11 outer ends with is connected a turbine and connects, and be that feather key cooperates 13 between leading screw 11 and the turbine, the straight-line feed that so just rotatablely moving of turbine can be converted to leading screw moves.Turbine 7 cooperates with worm screw 6, two coaxial being fixed in the rotating shaft 8 of worm screw, a double chain wheel 9 is installed at rotating shaft 8 middle parts, double chain wheel is connected with drive motors 10 by the chain transmission, under the driving of electric drive motor, can realize adjusting the purpose of roll-box position, and then regulate the spacing between two rolls.

The slidingsurface of the line slide rail of lower edge is provided with lubricating system on slide plate 5, can guarantee good lubricant effect.

Guiding mechanism in the utility model is that turbine and worm drives, and has auto-lock function, and gearratio cooperates electronic control system can realize the purpose of accurate two roll mandrel spacings reliably simultaneously.

Except the described technical characterictic of specification, be the known technology of those skilled in the art.

Claims

1. roll piercing mill roll governor motion, comprise the roll mill body, in the roll mill body, be provided with roll-box and roll, roll is installed in the roll-box, it is characterized in that, described roll mill body slide plate is installed respectively up and down, described roll-box can be along horizontal slip by slide plate, moves by linear ramp between described slide plate and the roll mill body; Extend outward a pair of leading screw in the outside of described roll-box, described leading screw and roll mill body carry out threaded engagement, a worm reduction gear is installed in the outer end of screw mandrel, and is the feather key cooperation between leading screw and the worm reduction gear, and the worm screw in the described worm reduction gear passes through the chain transmission by motor-driven.

2. a kind of roll piercing mill roll governor motion according to claim 1 is characterized in that described chain transmission is the double chain wheel transmission.