KR20020032333A - Apparatus for driving a pair of vertical rolls or their carrier shaft that are supported in pieces of bearing installation - Google Patents

Abstract

PURPOSE: An improved device is provided which has significantly simpler construction, requires only one drive unit for the device, and makes a rapid and precise roll adjustment possible. CONSTITUTION: In a device for driving a pair of vertical rolls (VWR) or support shafts (WTW) of vertical rolls mounted in bearing chocks (LES) which are moveable relative to each other, wherein the vertical rolls (VWR) or the support shafts (WTW) have necks (ZA) configured to be coupled to drive gear shafts, wherein each drive gear shaft is mounted in a gear housing (GG) connected to the bearing chocks and moveable together with the bearing chocks, the device is characterized in that the drive gear shafts are vertically mounted unilateral bevel gear shafts (KW1,KW2) with bevel gears mounted, so as to be in engagement with bevel gears (KR1,KR2) of hollow bevel gear shafts mounted horizontally coaxially in one of the gear housings (GG1,GG2), wherein each hollow bevel gear shaft has an internal spline, further comprising a floating intermediate shaft having an external spline and arranged between the gear wheel shafts so that the internal and external splines engage in each other, wherein the intermediate shaft is adapted to be connected to a drive unit (ASP).

Description

A pair of vertical rolls supported in a bearing mounting piece or a device for driving a carrier shaft of the vertical rolls `` APPARATUS FOR DRIVING A PAIR OF VERTICAL ROLLS OR THEIR CARRIER SHAFT THAT ARE SUPPORTED IN PIECES OF BEARING INSTALLATION}

The present invention relates to a pair of vertical rolls or devices for driving the carrier shafts of the vertical holes supported in mutually displaceable bearing installation pieces. In the case of the bearing mounting pieces, vertical rolls or journals of carrier shafts are connectable with the drive gear shafts, the drive gear shafts being connected with the mounting piece, respectively, and supported in the displaceable gear housing together with the mounting piece.

Devices of this type are known for different formations, in particular for use in wire rolling trains, and allow for the precise adjustment of vertical rolls and the easy replacement of these vertical rolls when the wire speed is high in the rolling train. Make it possible.

From US-PS 3,670,587 two vertical rolls are insertable into bearing installation pieces which are horizontally transportable from the top in the guide frame and which are mutually adjustable. Coupling sleeves can then be press-fitted onto the drive journals of the rolls standing up in the upward direction, the coupling sleeves via a jointed spindle connected to these sleeves and a gear device common to these spindles. Rotation can be driven through. In another device known from EP 139 199 A1 the vertical rolls are each supported in one horizontally displaceable support housing and connected with one gear using a drive journal of the vertical rolls facing downwards. The housing of the gear is connected with the support housing of the vertical rolls and is displaceable together. The two support housing-housing combinations are mutually displaceable, and their vertical rolls are driven from each drive via a displacement connection arrangement, which is laterally arranged underneath each combination.

Another device known from JP 57190703 shows a pair of horizontal rolls, each of the horizontal rolls standing upright on one roll carrier shaft, the roll carrier shaft being supported in a bearing housing, the bearing The housing is fixedly connected to a gear housing including a flanged drive motor on its side. The two housing-motor combinations are connected in a pivoting manner. Adjustment of the rolls is accomplished by pivoting the housing-motor combination. For applications in a wire rolling sequence the combination can be moved to different angular positions using the corresponding support frame, while the roll carrier shafts take a corresponding angular position with respect to the rolling axis.

All of these examples are very expensive and in part require two drives and the large mass to be moved makes it difficult to adjust the precise and fast vertical rolls required for the final stand of the wire rolling sequence. .

The object of the present invention is based on improving general devices with significantly lower manufacturing costs and enabling fast and accurate roll adjustment while using only one drive for the device.

1 is a cross-sectional view of a partially cut device shown in the rolling direction, and

FIG. 2 is an enlarged view of a partial cross section according to FIG. 1 which is likewise partially cut away.

<Description of Major Codes in Drawings>

VWR1, VWR2: Vertical Collar WTW1, WTW2: Roll Carrier Shaft

LES1, LES2: Bearing mounting piece GG1, GG2: Gear housing

KW1, KW2: Bevel Gear Shaft KR1, KR2, KR3, KR4: Bevel Gear

ASP: drive spindle KHW3, KHW4: bevel gear hollow shaft

ZW: Intermediate shaft ZPA3, ZPA4: Toothed shaft profile (outer)

TR1, TR2: Impact section ZPI3, ZPI4: Toothed shaft profile (inside)

ZA1: Journal (for WTW1), ZA2: Journal (for WTW2)

The object is formed as unidirectional bevel gear shafts in which the drive gear shafts are vertically supported, the bevel gears of the shafts being horizontally coaxially supported in the respective gear support housings, as well as bevels of the unidirectional bevel gear shafts. This is solved by engaging the gears in the form of bevel gear hollow shafts. Wherein the bevel gear hollow shafts are arranged between the two hollow shafts, and the inner tooth shaft profile of one floating intermediate shaft is connected with the outer tooth shaft profile of the intermediate shaft, thereby driving through the inner tooth shaft profile. Can be connected with

The vertically supported bevel gear shafts may be formed as impacts for the journals of the vertical rolls at the ends of the bevel gear shafts facing away from the bevel gears.

The invention is explained in more detail according to the embodiment shown in the drawings.

(Example)

Two vertical collars VWR1, VWR2 according to FIG. 1 are press-fitted on the roll carrier shafts WTW1, WTW2, the roll carrier shafts being two horizontally displaceable bearings mutually horizontally in a manner not shown, respectively. It is supported in the insertion piece of one of the pieces LES1 and LES2. Two gear housings GG1 and GG2 are disposed below the insertion pieces, and are connected in a form-fixed manner with the respective bearing insertion pieces LES1 to LES2. In the bearing insertion piece, one bevel gear shaft KW1 to KW2 is supported along with the bevel gears KR1 to KR2 facing downward in the vertical direction. The bevel gears mesh with bevel gears KR3 to KR4 of bevel gear hollow shafts KHW3 to KHW4 supported in gear housings GG1 to GG2 horizontally and mutually coaxially (compare FIG. 2). . The shaft KHW3 of one of the bevel gear hollow shafts is axially displaceably connected with the drive spindle ASP. The two bevel gear hollow shafts KHW3 and KHW4 each include one tooth shaft profile ZPI3 to ZPI4 on the inside. Within the tooth shaft profiles, one intermediate shaft is displaceable in an axially floating manner, the final cross sections ZWA3 and ZWA4 of the intermediate shaft being connected to the outer tooth shaft profiles ZPA3 to ZPA4. It is also engaged in the inner tooth shaft profiles ZPI3 to ZPI4 of the bevel gear hollow shafts KHW3 to KHW4 and axially displaceable within the bevel gear hollow shafts.

As shown, the bevel gear shafts KW1 to KW2 supported in the two gear housings GG1 and GG2 are caused horizontally upon adjustment of the vertical collars VWR1 and VWR2. And displacement movements of the gear housings GG1, GG2, since the bevel gear hollow shafts KHW3, KHW4 are continuously driven with the intermediate shaft ZW via their tooth shaft profile connections. This is because it stays connected.

As can be seen further from the figure, the vertical bevel gear shafts KW1, KW2 have their ends facing in the opposite direction of the bevel gears KR1-KR2 and in the direction towards the roll carrier shafts WTW1-WTW2. Are formed as impact sections TR1 to TR2 for stopping the journals ZA1 to ZA2 of the roll carrier shafts WTW1 to WTW2.

With such a configuration, it is possible to provide a general apparatus capable of fast and accurate roll adjustment while using only one drive for the apparatus with a significantly lower manufacturing cost.

Claims (2)

A device for driving a pair of vertical rolls VWR or carrier shafts WTW of the vertical rolls supported in mutually adjustable bearing inserts LES, the vertical rolls VWR or carrier shafts Journals ZA of WTW are connectable with drive gear shafts, each of which is connected to bearing inserts LES and one gear housing GG which is displaceable with the inserts. In the device supported in), The drive gear shafts are formed as unidirectional bevel gear shafts KW1 and KW2 which are vertically supported, and the bevel gears KR1 and KR2 of the bevel gear shafts are in respective gear housings GG1 to GG2. Bevel gears of bevel gear shafts supported horizontally coaxially in the form of unidirectional bevel gear hollow shafts KHW3 to KHW4, wherein the bevel gear hollow shafts are disposed between the two hollow shafts The inner toothed shaft profile (ZPI) of one floating intermediate shaft (ZW) is connected with the outer toothed shaft profile (ZPA) of the intermediate shaft, while connecting with the drive (ASP) via the inner toothed shaft profile (ZPI). Device characterized in that possible. 2. The vertical rolls according to claim 1, wherein the vertically supported bevel gear shafts KW1, KW2 are at the ends of the bevel gear shafts facing in the opposite direction of the bevel gears KR1, KR2. And the impact sections (TR1, TR2) for the journals (ZA1, ZA2) of the carriers (WTW1, WTW2).