JPS608125B2 - Spiral rolling roll equipment for manufacturing shaped steel and solid rotating bodies - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to metal processing, and more particularly to a helical rolling device for shaped steel and solid rotating bodies.

The present invention is particularly suitable for use in a mill roll device in which the rolls are provided on a workbench with a group drive. It is known that a mill roll device consists of a motor, a reduction gear and a gear device, the output shaft of which is connected to the rolls of the workbench via a spindle.

The arrangements of mill roll equipment described above, including spiral rolls, are widely used in the art. Typically, a gear block has a separate housing, the separated parts are connected by bolts, and a recess is formed in the two halves, in which one driven gear shaft and two
It accommodates several drive gear shafts and rotates the rolls installed on the workbench. The rotational force is transmitted to the mill rolls mounted on the workbench by means of spindles, in particular so-called universal joint spindles, which are widely used in modern mill mills. Universal joint spindles of this type have an intermediate shaft which is provided at each end with a universal joint or a hook-type joint consisting of two forks connected by a transverse member. The purpose of providing a universal joint spindle in a mill roll unit is to ensure a reliable transmission of torque to the work roll. The transmission efficiency of the spindle is extremely high, the dimensions of the spindle are relatively small, and the angle between the rutting line of the spindle intermediate shaft and the rattan line of the roll is variable in the range of 120 to 150 degrees. It is known that uniform rotation of the workbench rolls is achieved by means of both joints of the spindle having equal transmission ratios.

As used herein, the predicate "transmission ratio of a spindle joint" means the rotational speed ratio of the driven shaft and drive track of the workbench shaft and gearhead shaft, respectively. The above is possible when Q, = Q2, = person. Here, Q is the superior angle of the universal joint connected to the work roll shaft, that is, the angle between the rattan line of the intermediate shaft of the spindle and the roll's yaw line. Q2 is the angle of the universal joint connected to the gear base, that is, the angle between the spindle's intermediate axis, the flywheel line, and the gear base's yaw line. is the rotation angle of the yoke of the spindle intermediate shaft, and the yoke is made to rotate in the direction of the swivel joint in the ball plane of the spindle joint. The angle is the angle between the bottom surfaces of the single universal joint located on the work table and gear stand side.
In other words, the angle between the wisteria surfaces of the joint refers to the angle formed between the two planes: a plane passing through the rotation axes of the output shaft and the intermediate shaft, and a plane passing through the rotation axes of the intermediate shaft and the roll shaft. 1963
Published by Wang Mosco. Technology News No. 5, pages 25-28
(see page VestnikNnechinosroenla)
. Further theoretical and practical studies have shown that providing a group drive only requires the above-mentioned conditions and does not in any way make the dynamic and kinematic properties of each roll in the deformation zone the same. ing.

The object of the present invention is to select the above-mentioned basic design parameters of a helical rolling mill that provide a high degree of operational reliability, high productivity and the production of high-quality rolled products.

The above object is a spiral rolling roll device for manufacturing shaped steel and solid rotating bodies, which includes a workbench having rolls with preset rolling angles arranged, and each spindle formed in the shape of a shaft with joints at both ends. According to the present invention, in a device comprising a gear carriage in which respective output shafts are connected to the rolling rolls of a workbench via a gear carriage, the axes of the spindles are arranged so as to form the same angle at all joints of the spindles. death,
In addition, the bag line of the output shaft of the gear carriage is arranged at the same distance from the rolling axis, and the plane that crosses the rotational axis of the output shaft and the geometrical center axis of the gear shaft is arranged relative to the plane that crosses the rolling axis and the variable pressure axis. This is achieved by a helical rolling apparatus for manufacturing shaped steel and solid rotating bodies, which is characterized in that the shape is inclined by an angle y determined by the following equation.

Smy=〆〆・乑㑑㑑㑑㑑 (1) In the above formula, "Y" is the distance between the centers of the workbench and joints measured along the wisteria line of the roll, and 2 is the distance between the centers of the workbench and other joints measured along the rolling axis. The distance between the centers of the joint is the rolling angle,
R is the radius of a circle that crosses the output shaft axis of the gear block.

The purpose of equalizing the angles of all joints of the spindle is to equalize the dynamic and kinematic characteristics of all rolls.

This makes it possible to reduce the axial and tangential sliding of the bearings relative to the rolls, thus increasing the productivity of the equipment and resulting in high quality rolled products. BRIEF DESCRIPTION OF THE DRAWINGS The invention will now be explained in more detail with reference to a special embodiment for the manufacture of balls with reference to the accompanying drawings. The attached drawings will be explained in detail.

Figure 1 shows a workbench 1, a universal joint spindle 2, a gear stand 3,
1 shows a ball rolling machine with a main spindle 4 and a motor 5; A workbench 1G is equipped with a roll 6, and the roll 6
teeth.

A rolling angle is formed between the marking line 1-1 of the roll 6 and the rolling axis row D. As shown in FIGS. 1 and 2, a groove is formed in the part 7 of the roll body 8, and the roll body 8 is housed in a rotary drum separate block 9. Various changes can be made by rotating the block around the center ○.The above center 0 is located at the intersection of the rolling axis roller and the rolling axis mm whose angle can be changed.
It goes without saying that the workbench can be implemented in various other types depending on the product to be rolled, the process and the design specifications. As shown in FIG. 3, the gear block 3 has a drive gear 10 and an output shaft 13, respectively.
A driven gear 11 and a tortoise 2 each having a diameter of 1 W are provided, and these gears are housed in a housing 15. The gear stand is arranged so that the geometric center ◯, which is the midpoint of the green line 203 of the axis W-W passing between the centers of both output shafts, is on the rolling axis. The universal joint spindle 2 includes an intermediate shaft 16 and universal joints 17 and 18 provided at the ends of the shaft.

The universal joint is known to those skilled in the art as a hook type joint and is a sliding or anti-friction bearing formed by two yokes connected by a transverse member. However, it goes without saying that any other ball bearing may be used as long as it has the same degree of freedom as the hook type joint. The joint 17 of the upper spindle shown in the figure is connected to the axial end of the roll 6, and the joint 17 of the lower spindle is connected to the axial end of the other roll 6.

The joint 18 of the upper spindle is connected to the output shaft 14 of the gear 12 of the gear carriage 3, and the joint 18 of the lower spindle is connected to the output shaft 13 of the gear carriage 3. According to the invention, the axes of both output shafts must be equidistant from the rolling axis.

The head angles Q' of each joint of each spindle are mutually equal. The spatial and angular relationship between the gear carriage and the machining gap is defined by the angle y.

That is, the angle y is the angle between the plane passing through the rotation axes of both output shafts and the geometrical axis of the gear carriage with the plane passing through the rolling wire and the rolling axis whose angle can be changed. By aligning the rolling axis with the rolling axis, uniform gear engagement and strong operating conditions can be obtained for both rolls. Figures 4 and 5
Find the angle y for the figure.

The preset angle of rolling. OM=Evening. OBi 2, the axis of the spindle is MC, 0, D, = R, 2 = Q',
From 12Q'3=2Q' and 10mQ'2=2Q, D, K=
HF=BN+NC=MA+NC=tg hair Misaki MN・t
gQ3=MA+(0B-0A)●=do・Sin no 10 (so 2-evening・no S) increase: dobu n no 10 so 2 hagi-so. ■S
tg multi=〆・(Sin's -■S'-tosanjuso2tg author=gu・Curion's(tg's-吃田十〆2tg author's umbrella=ACOS's C bay difference).

Takashi) 10&-tg many tg hair = 〆・-tg hair 10 so 2 tg author i
(Part 1, Part 2) - Siny = Ship - Written by S￥・tg The operating method of the rolling roll device of the present invention is similar to that of the conventional rolling roll device used for similar purposes to the present invention. The explanation is omitted in the main text.

However, the straight rolling roll according to the present invention can increase production efficiency and reduce non-uniform rotation of the work roll, thereby improving the quality of the rolling roll product. The invention can be implemented in various embodiments without departing from the spirit set forth in the claims.

Brief explanation of the drawings Figure 1 is an overall view of a high-performance pole milling roll device according to the present invention, Figure 2 is a plan view of Figure 1, and Figure 3 is a view of A in Figure 1.
4 is a schematic diagram showing the gear mechanism system of the rolling roll device of the present invention, and FIG. 5 is a schematic diagram showing the gear mechanism of the gear carriage.

2...Spindle, 3...Gear stand, 16...
...Middle enemy, low 0...Rolling axis.

big brother leg Keri Z O.G.J. Katoka I batting

Claims (1)

[Claims] 1. A helical rolling roll device for producing shaped steel and solid rotary bodies, which connects the workbench to the workbench through a spindle including a workbench, a plurality of rolling rolls provided on the workbench, and an intermediate shaft having joints at both ends. In the apparatus comprising the above-mentioned rolling roll and a gear train connected to its output shaft, the intermediate shaft 16 of the spindle 2 is rotated so that all joints of the spindle form the same inclination angle α with respect to the rolling shaft II-II. are arranged, and the axis of the output shaft of the gear carriage 3 is arranged at the same distance from the rolling axis II-II, and the plane that intersects the rotational axis of the output shaft and the geometric center axis of the gear shaft is variable with the rolling axis. A helical rolling machine for manufacturing shaped steel and solid rotating bodies, characterized in that it is inclined at an angle γ determined from the following formula with respect to a plane that crosses the rolling axis sinγ=(l_1+l_2)/Rtgψ/2
(1) In the above formula, l_1 is the distance between the centers of the workbench and joints measured along the roll axis, l_2 is the distance between the centers of the workbench and other joints measured along the rolling axis, and ψ is the rolling angle. , R is the radius of a circle that crosses the output shaft axis of the gear block.