CN2115844U

CN2115844U - Mill for primary profiled empty hexagon drill steel

Info

Publication number: CN2115844U
Application number: CN 91206913
Authority: CN
Inventors: 叶凌云; 佘德如; 姚文财; 郑在习; 冯志勇; 吴志经
Original assignee: Hubei Coal Machine Plant; QIANNING MINING MACHINERY PLANT HUBEI PROV
Current assignee: Hubei Coal Machine Plant; QIANNING MINING MACHINERY PLANT HUBEI PROV
Priority date: 1991-04-22
Filing date: 1991-04-22
Publication date: 1992-09-16

Abstract

The utility model relates to a mill for primary profiled empty hexagon drill steel which belongs to rolling mills, and the mill for primary profiled empty hexagon drill steel is mainly used for milling various empty hexagon drill steels. The mill for primary profiled empty hexagon drill steel adopts an electric motor which is arranged on a machine frame to transfer power through a shaft coupling, a reducer and a gear which is arranged on the rolling mill casing body, wherein, the rolling mill casing body is provided with a sun gear to distribute the power to six epicyclic gears and drive six rollers to rotate; the six rollers is supported on the rolling mill casing body by 12 bearings, and axial leads are in a same plane, which can primary mill the hexagon drill steel. Because primary profiled mill is adopted, the surface of the drill steel is caused to uniformly bear the power, and the circular degree of the center water hole of the drill steel can be kept.

Description

Mill for primary profiled empty hexagon drill steel

The utility model belongs to hollow hexagon steel rolling equipment.

Existing hollow hexagon steel rolling equipment, the employing cast tube steel ingot belt carcass hot rolling that has, with three cross-arranging type three-high mills and the rolling hollow hexagon of a short stress path rolling mill steel, because cross-arranging type is arranged, influence each other between each rolling-mill housing, roller jumping value was big with changing when the rolling line while, multi-pass was walked steel about the particularly same frame, and is totally unfavorable to the distortion in water hole, cored steel center, and need loose core, the steel surface has vertical or horizontal defective; Three cross-arranging type three rollers of the employing that has milling train of remaining silent, roll is passive, and steel billet drawing under the roll in garden is rolled, and makes the steel interior tissue bear bigger drawing stress, has influenced the steel quality; The a whole set of milling train that has is made up of a two-high reversing mill, three roller intermediate mill and seven finishing mills (three levels are joined roller, vertically join roller for four), equipment processing, big, the complex process of installation difficulty.Above hollow hexagon steel rolling equipment, power consumption is big, and general main motor current is greater than 500Kw, and the operation of rolling will be passed through the 4-8 procedure, and the water hole, steel center that has is ellipse garden shape, is difficult to reach standard-required.

The purpose of this utility model is to make a kind of rolling device that can once be rolled into hollow hexagon steel, and this device is installed in six rolls on the milling train housing, keeps axial line in same plane; And by six the planetary gear transferring power of a central gear drive on a rack-mounted motor and the milling train housing, it is simultaneously rolling to drive six rolls.

The utility model adopts a motor ［ 1 ］ is installed on the rolling-mill housing ［ 45 ］, and power is through shaft coupling ［ 2 ］, and decelerator ［ 3 ］ is exported by the gear on the reducer shaft ［ 4 ］.Respectively through being installed in travelling gear ［ 5 ］, ［ 6 ］, ［ 7-12 ］, ［ 13-18 ］ on the milling train housing ［ 44 ］, drive is installed in milling train housing ［ 44 ］ and goes up by six rolls ［ 25-30 ］ of bearing ［ 31-42 ］ supporting and garden bevel gear ［ 19-24 ］ rotation of fixing with roll, wherein the transmission of central gear ［ 6 ］ has realized the power of a motor ［ 1 ］ is distributed to six rolls ［ 25-30 ］, reaches once the purpose of rolling hexagon steel.

This milling train adopts a motor, by gear drive, drives six rolls, makes garden steel billet energy one-shot forming and the power of being rolled when rolling even, has kept the garden degree in water hole, center, has reduced operation, energy efficient, and the steel any surface finish that shuts out, quality is good.

Utilize example shown in the drawings to be described further below:

Fig. 1 is one-shot forming milling train transmission of hollow hexagon steel and structural representation

Fig. 2 is a hollow hexagon steel one-shot forming rolling mill roll distribution schematic diagram

Fig. 3 is hollow hexagon steel one-shot forming milling train central gear and planetary gear distribution schematic diagram

Shown in Figure 1 is the transmission and the structural representation of hollow hexagon steel one-shot forming milling train, adopts motor ［ 1 ］ is installed on the frame ［ 45 ］, and power is exported by the gear ［ 4 ］ on decelerator ［ 3 ］ axle through shaft coupling ［ 2 ］.Travelling gear ［ 5 ］, ［ 6 ］, ［ 7-12 ］, ［ 13-18 ］, ［ 19-24 ］ and roll ［ 25-30 ］ are installed in respectively on the milling train housing ［ 44 ］.

Gear ［ 5 ］ adopts same through-drive with central gear ［ 6 ］, and central gear ［ 6 ］ drives six planetary gears ［ 7-12 ］ (as Fig. 3) on the circumference, and six planetary gears ［ 7-12 ］ connect six conical gears ［ 13-18 ］ respectively.Six pairs of conical gears ［ 13-18 ］, ［ 19-24 ］ transmission at an angle of 90 drive six rolls ［ 25-30 ］ that are fixed together with six conical gears ［ 19-24 ］ and rotate.

Shown in Figure 2 is hollow hexagon steel one-shot forming rolling mill roll distribution schematic diagram, the axial line of roll ［ 25-30 ］ in same plane (as Fig. 1), and six roller rolling surfaces form the hexagonal pass.The garden steel billet once can be rolled into hollow hexagon steel ［ 43 ］, its six rolls ［ 25-30 ］ are supported by the bearing ［ 31-42 ］ on the casing ［ 44 ］ respectively.

Claims

1, a kind of hollow hexagon steel one-shot forming milling train is made up of motor, shaft coupling, decelerator, garden stud wheel, garden bevel gear, bearing and roll; It is characterized in that: the axial line that is installed in six rolls [25-30] that support with bearing [31-42] on the milling train housing [44] is in same plane, and six roll rolling surfaces form the hexagonal passes.

2, hollow hexagon steel one-shot forming milling train according to claim 1; It is characterized in that this moulding milling train also comprises the central gear ［ 6 ］ of six planetary gears ［ 7-12 ］ each and its engagement.