CS217026B1 - Vertical gear box of the drive of working cylinders of the verticalroll stand - Google Patents

Abstract

The invention relates to a vertical gearbox casing for the drive of work rolls of a vertical rolling stand for billet mills, in which the vertical electric motor is accommodated in parallel with the pinions. The invention provides a vertical gearbox casing which is mounted on the vertical stand. The arrangement of this gearbox casing makes it possible to accommodate the vertical electric motor in close proximity to the vertical stand and to simplify it. The requirement that exchange of the spare cartridges of the work rolls of the rolling stand from both sides of the stand be possible is simultaneously fulfilled. The mass of and work expended on the entire drive of the rolling stand are thereby reduced. The invention consists essentially in the provision of a gear mechanism which is formed by two spaces, of which the upper space is used for mounting the spur gear mechanisms and a lower space is used for mounting the gear mechanisms of the pinions which are mounted on the driving shafts. The driving pinion is connected to the output shaft of the spur gear mechanisms, the said output shaft passing through the wall between the upper and the lower space of the gear mechanism, and the outlet driving shafts, which are connected to the pinions, emerge from the lower space of the gear mechanism.

Description

Vertical gearbox for front roller drive vertical vertical mill stand,

BACKGROUND OF THE INVENTION The present invention relates to a vertical gearbox for working roll drive of a vertical rolling mill for cross-sectional lines, in which the vertical electric motor is arranged parallel to the comb rollers.

The invention solves a vertical gearbox housed in a vertical stand that allows parallel positioning of a vertical electric motor in close proximity to the vertical stand while simultaneously meeting the requirements for the possibility of replacing the spare rolls of rolling mill working rolls from both sides and simplifying them. .

The invention is based on a transmission comprising two spaces, the upper space of which is used to receive the front gears and the lower space of the racks of the racks which are mounted on the drive shafts. The drive comb roller is connected to the output shaft of the spur gears and the output drive shafts connected to the comb rollers extend from the lower area of the gearbox.

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BACKGROUND OF THE INVENTION 1. Field of the Invention The invention relates to a vertical gearbox for driving precision rollers of a vertical rolling mill, in particular for cross-sectional lines, in which the vertical electric motor is arranged parallel to the comb rollers.

In the known solutions, horizontal or vertical electric motors and one or two gearboxes are generally used to drive the working rolls of the vertical stands. . The disadvantage of the solution when using a horizontal electric motor and one gearbox with bevel and spur gears is that it does not allow the replacement of the spare cylinders of the work rollers from the drive side, as this is prevented of the electric motor, one of the bevel gearbox, the other of the spur gearbox, and the drive shaft which connects the electric motor to the bevel gearbox is its complexity and laboriousness.

The known solution using a vertical electric motor and one gearbox with spur gears does not allow the replacement of the spare rollers of the working rolls from the drive side. In this case, the gearbox is constructed in a known manner, in which the spur gears are arranged in succession in two rows and the shafts of these gears are supported in two parallel opposite walls of the housing. With this solution, the engine cannot be height-aeaeevt so as to allow the replacement of the working cylinder cartridges from the engine side.

Rain. The solution known in the construction of various gearboxes is a solution with an alignment of all side-to-side spur gears with two common axes of all wheels, in which the gear shaft shafts are mounted in parallel walls of the housing creating a self-rotating space for each gear. However, this solution does not allow lateral offset of the engine outside the rolling stand.

The aforementioned drawbacks are eliminated by the vertical gearbox of the vertical rolling mill especially for horse-drawn tracks, where the vertical electric motor is located parallel to the comb rollers. x the transmission housing consists of two spaces. The upper space is taught to accommodate the front dowels and the lower space to break off the rakes of the comb rollers that are seated on the bomb shafts. The drive comb roller is connected to the output shaft of the spur gears. The output drive shafts, coupled with rack-and-pinion cylinders, protrude from the lower transmission compartment.

Creating a gearbox housing with two spaces, the upper space of which is adapted to accommodate the spur gears and the lower space of the racks of the racks, the drive shafts of which exude from the lower space by joining the rack to the output shaft of the front wheel. This allows the positioning of the electric motor in relation to the drive shafts in close proximity to the vertical gearbox, thereby maximizing simplification and thus reducing the weight and labor of the gearbox-electric motor assembly. Furthermore, the advantage of the use of this case is that it enables the replacement of the cassettes of the working rolls of the rolling stands on both sides of the stand, whereby losses during the rolling process are reduced to a minimum.

An exemplary embodiment of the present invention is illustrated in the drawings, with obirl showing a vertical stand in an overall view, Figs. 2 and 3 a diagram of a vertical gearbox.

The vertical rolling mill 1 is driven by a vertical J, which is located parallel to the rack cylinders 231.232 of the vertical gearbox 2 directly below the input shaft 221. The mounting of the vertical electric motor J on the vertical rolling mill 1 allows the cassette 12 of the working rolls 11 to be replaced. The housing of the gearbox 21 is divided into an upper space 211 and a lower space 212. In the upper space 211 are mounted a front gear assembly 22 driven by an input shaft 221. The output shaft of the spur gear 22 is simultaneously connected to a driving rack roller. 231. by which the driven comb roller 232. is driven with which: From the rack cylinders 231.232, the torque is transmitted to the output drive shafts 233.234 to drive the work rollers 11.

Claims (1)

OBJECT OF THE PROJECT A vertical gear mill drive casing gearbox, in particular for cross-sectional lines, in which the vertical motor is positioned parallel to the comb rollers, characterized in that the gearbox housing (21) is formed by two spaces (211, 212). of which the upper space (211) is adapted to receive the front gears (22) and the lower space (212) for receiving the gears of the racks (23) seated on the drive shafts (233, 234), of which the drive racks (231) is coupled to the output shaft 1222) of the front gears (22), the drive shafts (233,234) extending from the lower space (212).