RU58399U1 - MULTI-CURVE PROFILING MILL DRIVE, PREVIOUSLY EASY OR MEDIUM TYPES (OPTIONS) - Google Patents

Abstract

The invention relates to the processing of metals by pressure, in particular to equipment for the production of bent sections of rolled products, drives of a multi-strand roll forming mill, mainly of light or medium type, used to transmit torque to the upper and lower working shafts.

The technical result of the claimed utility model is:

1. Expanded technological capabilities of the profiling process due to a wider range of adjustments to the position of the upper and lower shafts.

2. Improving the quality of manufactured products, especially in the manufacture of profiles of complex cross-sectional shapes and coated profiles.

3. Simplification of drive design and cost reduction.

4. High degree of reliability and maintainability.

The technical result of the claimed utility model in comparison with the invention adopted as a prototype drive multi-roll forming mill with upper and lower working shafts, designed to transmit torque to the said working shafts and containing an electric motor, gearbox, in the claimed utility model, the drive of the forming mill in each section is made separate and equipped with gears, transfer case with gears installed in the transfer case, and cardan shafts interacting the working shafts of the profiling stands, wherein said electric motor is kinetically connected by means of a V-belt drive, with said gearbox, gears, transfer case with gears and cardan shafts interacting with the working shafts of the profiling stands, and the gears in the transfer case are upper relative to the lower ones with the axes shifted to vertical plane by the value of “a” and in the horizontal plane by the value of “a”, while the axes of the mentioned gears form a sinusoidal curve u, and the gears are installed with the possibility of interaction with each other in the following sequence - the first lower gear - with the first upper gear, the second lower gear with the first upper and second upper gear, etc. while the value of "a" is determined from the ratio:

where

aw is the pitch diameter of the mentioned gears installed in the transfer case on the shafts and is determined from design considerations.

and - the magnitude of the displacement of the axes of the gear.

In addition, an additional technical result, an increase in the technological capabilities of the profiling process through the implementation of various technological modes of profiling when turning on / off the cardan shafts: axial tension, drawing, etc., is achieved by the fact that it is quick-detachable, with the possibility of transmitting torque, like to all workers the shafts of the profiling stands with all shafts turned on by cardans, and selectively in various combinations.

In addition, the technical result, simplifying the design of the drive and the cost of its manufacture is achieved by the fact that it is made for every two sections.

In addition, the technical result, simplification of the design of the drive and the cost of its manufacture is achieved by the fact that, for every three sections, it is made uniform.

Description

The invention relates to the processing of metals by pressure, in particular to equipment for the production of bent sections of rolled products, drives of a multi-strand roll forming mill, mainly of light or medium type, used to transmit torque to the upper and lower working shafts, contains a motor and gearbox.

The utility model relates to rolling production and can be used in the manufacture of high-quality bent profiles of relatively small and medium sizes.

For the production of high-quality bent profiles (corners, channel, trough, Z-shaped, etc.), special mills are used, usually containing 8 ... 14 double-roll stands. Depending on the size of the initial workpiece, roll forming mills are of several types: light, medium and heavy. The drive of modern roll forming mills contains an engine, gearbox, gear stands, couplings, spindles and its features are described in sufficient detail, for example, in a book edited by I. Trishevsky “Production of bent profiles (equipment and technology)”, M., “Metallurgy” 1982, p.146-149.

A significant drawback of roll forming mills with such a drive is a large number of intermediate parts and assemblies, the rotation of which consumes a significant proportion of energy, which reduces the efficiency drive, makes its manufacture and operation more expensive.

From analogues of the prior art, a roll forming mill drive with an endless chain enveloping the upper and lower sprockets of different diameters mounted on the ends of the work rolls (See Japanese Patent No. 1832, class 12 C 221.3 from 10.27.69) .

The disadvantage of this device is the drive of all the rolls (upper and lower) of the mill, which increases their wear and increases the likelihood of surface defects on the profiles.

From the analogues of the prior art, a multi-stand roll forming mill drive, mainly of a light type, with upper and lower working shafts, comprising an engine, a gearbox (RU 2110350, B 21 D 5/06, according to the application No. 96117307/02 of 08/26/96, the authors are known: Antipov V.G., Senichev G.S., Afanasyev V.F. and other applicant Joint Stock Company Magnitogorsk Iron and Steel Works; published on 05/10/98, in bulletin No. 13).

The closest in technical essence to the claimed invention is the drive multi-roll forming mill, mainly light type with upper and lower working shafts, designed to transmit torque to the aforementioned working vacs and containing an engine, gearbox (RU 2188729, 21 D 5/06, according to the application

No / 2000123493/02 of 09/11/2000 authors Antipov V.G., Karpov E.V., Ushakov A.A., Afanasyev V.F. and other applicant open joint stock company Magnitogorsk Iron and Steel Works; published on May 10, 2002 in Bulletin No. 25.).

The disadvantages of the known invention are:

1. The worst technological capabilities of the profiling process due to a narrower range of adjustments to the position of the upper and lower shafts.

2. The worst technological possibilities of profiling, as it has fewer modes of profiling: axial tension, drawing, etc.

3. The worst quality of manufactured products, especially in the manufacture of profiles of complex cross-sectional shapes and profiles of complex cross-sectional shapes and coated profiles.

4. Less reliability of the drive and maintainability, since the drive of this design is the need to stop the mill and change the location of its tensioning device, not only when changing the diameters of the rolls (for example, after regrinding during repair), but also when changing to a strip (blank) another thickness when changing the clearance between the shafts is necessary.

The technical result of the claimed utility model is:

1. Expanded technological capabilities of the profiling process due to a wider range of adjustments to the position of the upper and lower shafts.

2. Improving the quality of manufactured products, especially in the manufacture of profiles of complex cross-sectional shapes and coated profiles.

3. Simplification of drive design and cost reduction.

4. High degree of reliability and maintainability.

The technical result of the claimed utility model in comparison with the invention adopted as a prototype wire multi-roll forming mill with upper and lower working shafts, designed to transmit torque to the said working shafts and containing an electric motor, gearbox, in the claimed utility model, the drive of the forming mill in each section is made separate and equipped with gears, transfer case with gears installed in the transfer case, and cardan shafts interacting the working shafts of the profiling stands, wherein said electric motor is kinetically connected by means of a V-belt transmission, with said gearbox, gears, transfer case with gears and cardan shafts interacting with the working shafts of the profiling stands, the upper gears in the transfer case being mounted relative to the lower ones vertical plane by the value of "a" and in the horizontal plane by the value of "a", when

this axis of the mentioned gears form a sinusoidal curve, and the gears are installed with the possibility of interaction with each other in the following sequence - the first lower gear - with the first upper gear, the second lower gear with the first upper and second upper gear, etc. while the value of "a" is determined from the ratio:

where

aw - dividing diameter of the mentioned gears installed in the transfer case on the shafts and is determined from design considerations

and - the magnitude of the displacement of the axes of the gears.

In addition, an additional technical result, an increase in the technological capabilities of profiling due to the implementation of various technological modes of profiling when turning on / off the cardan shafts: axial tension, drawing, etc., is achieved by the fact that the said cardan shafts are quick-detachable, with the possibility of transmitting torque, as on all working shafts of profiling stands with all shafts turned on by cardans, and selectively in various combinations.

In addition, the technical result, simplifying the design of the drive and the cost of its manufacture is achieved by the fact that it is made for every two sections.

In addition, the technical result, the simplification of the design of the drive and the cost of its manufacture is achieved by the fact that for every three sections it is made uniform.

The utility model is illustrated by drawings:

Figure 1. Kinetic scheme of the drive of one section of the mill.

Figure 2. Kinetic scheme of the drive of two sections of the mill.

Figure 3. Kinetic scheme of the drive of three sections of the mill.

Figure 4. Transfer box with gears, section AA (Fig. 1).

Figure 5. Transfer case with gears, top view.

The essence of the utility model is the drive of a multi-stand roll forming mill, mainly for light or medium types.

The drive of a multi-strand roll forming mill, mainly for light or medium types, contains an electric motor 1 (Figs. 1-3) kinematically connected by means of a belt drive 2 (Figs. 1-3) with a reducer 3 (Figs. 1-3), gears 4 (Fig.1-3) transfer case 5 (Fig.1-5) with gears 6 (Fig.1-4) installed in the transfer case 5 (Fig.1-5), and cardan shafts 7 (Fig.1- 3, 5), interacting with the working shafts 8 (Fig.1-5) roll forming stands (not shown).

The drive of multi-roll forming mill, mainly for light or medium types, is made separate for each section 9 (figure 1), (Option 1).

The drive of a multi-strand roll forming mill, mainly for light or medium types, is made separate for each two sections 9 (figure 2), (Option 2).

The drive of a multi-strand roll forming mill, mainly for light or medium types, is made separate for every three sections 9 (Fig. 3), (Option 3).

In all cases, in the transfer case 5 (FIG. 4), the upper gears 6 (FIG. 4), relative to the lower gears 6 (FIG. 4), are mounted with an offset of the upper axles 10 (FIG. 4) relative to the lower axles 11 (FIG. .4) by the value of “a” in the vertical plane and by the value of “a” in the horizontal plane, forming a sinusoidal curve. In this case, the first lower gear 6 (Fig. 4) interacts with the first upper gear 6 (Fig. 4) and the second upper gear 6 (Fig. 4), etc. The lower gears 6 (Fig. 4), with working shafts 8 (Fig. 4), the driveshaft 7 (Fig. 4) are configured to transmit torque to the lower working shafts 8 (Fig. 4) of the profile stands (not shown in the drawing) and the upper gears 6 (Fig. 4) with working shafts 8 (Fig. 4) and cardan shafts 7 (Fig. 4) are configured to transmit torque to the upper working shafts 8 (Fig. 4) of the profile stands.

The value of "a" is determined from the ratio: where

aw is the dividing diameter of said gears installed in the transfer case 5 (FIG. 4) on the shafts 8 (FIG. 4) and is determined from design considerations.

and - the magnitude of the displacement of the upper axes 10 (figure 4), relative to the lower axes 11 (figure 4) of the gears 6 (figure 4).

The transfer case 5 (Figs. 1-5) is a housing in which eight working shafts 8 are horizontally mounted on the bearing assemblies (not shown in the drawing) 8 (Fig. 5).

The operation of the drive multi-roll forming mill is as follows.

The multi-stand roll-forming mill of the working shafts 8 of the profiling stands of each section 9 is driven by an electric motor 1 by means of a belt drive 2 (pulleys) through a reducer 3, gears 4, a transfer case 5 with gears 6, cardan shafts 7 to the working shafts 8. Torque by working shafts 8 are transmitted from the drive through gearing to a central shaft (not shown in the drawing).

According to OOO IDM IDM, the use of the proposed drive on multi-roll forming mills allows reducing the cost of redistribution in the production of high-quality bent profiles (by reducing the labor costs for operating and repairing the drive) by at least 15%, which will accordingly increase the profit from the sale of finished products.

Claims (6)

1. The drive of the multi-strand roll forming mill of predominantly light or medium types with upper and lower working shafts, designed to transmit torque to the said working shafts and containing an electric motor, gearbox, characterized in that the drive of the roll forming mill in each section is made separate and equipped with gear wheels, a transfer case a box with gears installed in the transfer case, and cardan shafts interacting with the working shafts of the profile stands, while the said electric the motor is kinematically connected by means of a V-belt drive with said gearbox, gears, transfer case with gears and cardan shafts interacting with the working shafts of the profile stands, and the gears in the transfer case upper relative to the lower ones are mounted with the axes shifted in the vertical and horizontal planes, while the axes the said gears form a sinusoidal curve, and the gears are installed with the possibility of interaction with each other. 2. The drive according to claim 1, characterized in that said cardan shafts are quick-detachable, with the possibility of transmitting torque to all working shafts of the profile stands, with all shafts turned on by cardans, and selectively in various combinations. 3. The drive of the multi-strand roll forming mill of predominantly light or medium types with upper and lower working shafts, designed to transmit torque to the said working shafts and containing an electric motor, gearbox, characterized in that the drive of the roll forming mill for each two sections of the mill is made uniform and equipped with gear wheels , transfer case with gears installed in the transfer case, and cardan shafts interacting with the working shafts of the profile stands, while mentioning The smallest electric motor is kinematically connected by means of a V-belt drive with said gear, gears, a transfer case with gears and cardan shafts interacting with the working shafts of the profile stands, the gears in the transfer case upper relative to the lower ones, with axes shifted in the vertical and horizontal planes, the axes of the said gears form a sinusoidal curve, the gears being installed so that they can interact with each other. 4. The drive according to claim 2, characterized in that said cardan shafts are quick-detachable, with the possibility of transmitting torque to all working shafts of the profile stands, with all shafts turned on by cardans, and selectively in various combinations. 5. A drive of a multi-strand roll forming mill of predominantly light or medium types with upper and lower working shafts, designed to transmit torque to the said working shafts and containing an electric motor, gearbox, characterized in that the drive of the roll forming mill for each three sections of the mill is made uniform and equipped with gear wheels , transfer case with gears installed in the transfer case, and cardan shafts interacting with the working shafts of the profile stands, while mentioning The smallest electric motor is kinematically connected by means of a V-belt drive with said gear, gears, a transfer case with gears and cardan shafts interacting with the working shafts of the profile stands, the gears in the transfer case upper relative to the lower ones, with axes shifted in the vertical and horizontal planes, the axes of the said gears form a sinusoidal curve, the gears being installed so that they can interact with each other. 6. The drive according to claim 5, characterized in that the said cardan shafts are quick-detachable, with the possibility of transmitting torque to all working shafts of the profiling stands, with all the shafts turned on, and selectively in various combinations.