SU1629326A1 - Holding means for a mounted drive of a converter - Google Patents

Abstract

This invention relates to mechanical engineering and can be used in such fields as heavy and metallurgical engineering. The purpose of the invention is to increase the reliability of the drive. The holding device of the hinged converter drive contains

Description

The invention relates to mechanical engineering and can be used in such fields as heavy and metallurgical engineering.

The purpose of the invention is to increase the reliability of the drive.

Figure 1 shows a device with vertically mounted tami, general view; figure 2 - the same, with V figuratively set tami.

The restraint device contains ti 1 connected to the base 2 of the converter by means of hinges 3. At the upper ends of the tg there are blocks 4, through which flexible elements 5 (for example, cables) are thrown, with one end 6 wrapped several times around the housing 7 of the drive and rigidly fixed on the th jah j, and the other end 8 connected to the j sticks J by means of elastically deformable elements 9.

The plugs 1 can be mounted vertically or V-shaped and connected /. with a bed 2 converters one common hinge. Instead of elastic elements 9, weights may be attached to the ends of the flexible elements.

The holding device operates as follows.

In the initial position, the elastic elements 9 create a preliminary tension in the flexible elements 5. When the converter is tilted counterclockwise, a reactive torque occurs clockwise on the housing 7 of the hinged drive. At the same time, a predominantly flexible element, which is mounted on the right rack, is activated to hold. With the growth of the reactive moment increases and holding, moment

S d - S2

TO

cr-hell

 D,

where D is the diameter of the pulley, by increasing the force 5, which increases until it reaches a critical value determined by the Formula:

S

1st

iP.

five

0

five

0

five

0

five

With a further increase in the reactive moment, slippage of the flexible element 5 along the housing 7 of the overhanging drive is possible. In order to prevent slippage, the critical value of the force S must be taken with a margin. Since the coefficient of friction F of the flexible element and the housing for a certain combination of contacting materials is quite stable and varies within narrow limits, the real way to increase the critical value of the force $ is to increase the number of turns of the flexible element on the body, t. an increase in the angle of coverage B. The flexible element must withstand a tensile force S,

The second flexible element, fixed on the left pillar, is actually loaded by the tension force of the elastic element 9. At the same time, its second end 6, rigidly mounted on the rack, may even sag. Since the tension forces S of the elastic elements on the left and right pillars are approximately equal, but create moments of opposite sign, they compensate each other and when calculating the holding moment it should be taken Sg 0. Then

m - S «D M - 2.

The magnitude of the compensating sludge directed vertically is actually equal to

P, - 2S4,

since the tension forces of the elastic elements are two (on the left and the right pillar) and they are directed downwards with respect to the body of the mounted drive.

Since the force S is proportional to the actual value of the holding moment, the magnitude of the force P, k, which compensates the force of gravity of the mounted drive, is proportional to the value of the holding moment.

In the proposed holding device, the forces in the thrue are equivalent to the forces of the SIB flexible elements. The compensating force RK is numerically close in magnitude to the force of the hinged drive. Consequently, under the operating conditions, the mounted drive bearings are not affected by the force of the actuator. Since the bearings are mounted on a trunnion, therefore, the trunnion is also loaded with bending forces that are much smaller than the nominal load. All this favorably affects the reliability and durability of the drive and converter as a whole. In addition, reducing the operating radial forces on the bearings allows the lightweight series of bearings to be built into the drive design, and, consequently, to reduce their cost.

formula

and

6

3 o

bratis

Claims (3)

1. A hitch-mounted converter holding device, comprising a drive body, a frame, two tufts 5 blocks with a flexible element thrown over them and elastic-deformable elements, characterized in that, in order to increase the reliability of the drive, it is equipped with an additional flexible element and hinges. the end is fixed in the hinges and mounted on the bed, and at the other end of the pull-rod there are blocks with flexible elements thrown over them, while the flexible elements are wound in opposite directions to the drive housing, and ontsy fixed on the connecting rods and the elastically deformable elements, moreover, the elastically deformable elements are installed on the corresponding rods, 2. The device is pop.1 o tl and h ate with the fact that the rods are set V - figuratively and are connected with the base of the converter by one hinge. 3. A device according to I.J. With the fact that at one end flexible element secured loads. four Fig 2