SU1263614A1 - Crane swivelling mechanism - Google Patents

Abstract

CRANE ROTATION MECHANISM, comprising a housing with a drive shaft engine installed in it, kinematically associated with a reduction gear, having an output shaft, characterized in that, in order to simplify the design, the reduction gear is made of a sinusar two-stage gear containing driving and driven ring members, respectively rigidly connected to the drive and output shafts, mounted on the housing by a coaxially-mentioned link, a separator, an intermediate ring link and balls, with the driving and driven rings The links are provided with sinus-shaped running tracks that are filled on their side surfaces, the intermediate ring link is coaxially positioned relative to the other links indicated with a radial clearance, the separator is made in the form of a sleeve with through-slots for balls, coaxially with a radial clearance placed partially between the last and the driven ring links, and the intermediate link is made with two rows of sine-shaped (Led treadmills on its side surface and with the ability to interact through a ball in and sinusoidal treadmills as slave and driving ring links. tc and with O5

Description

The invention relates to lifting transport machinery, in particular to the mechanisms of rotation of lifting machines.

The aim of the invention is to simplify the design.

FIG. 1 schematically shows the rotation mechanism, a general view, in FIG. 2 - scan the side surface of the master and slave units; in fig. 3 - the same as an intermediate link; Fig 4 is a separator structure; in fig. 5 is a section A-A in FIG. four.

The rotation mechanism consists of a housing 1 with a driving motor 2 installed in it, connected via gear coupling 3, made together with brake pulley 4, with driving shaft 5 and reducing sine two-speed gear, consisting of driving link 6, separator 7, intermediate link 8 , balls 9 and the slave link 10.

Slave link 10 is connected by means of a shaft 11 to gear 12, interacting with a ring gear mounted on the frame of a lifting machine.

The rotation mechanism works as follows.

The torque from the shaft of the drive motor 2 installed in the housing 1 is transmitted by means of the gear coupling 3 to the drive shaft 5 and from it to the driving link 6, reduced by means of the separator 7, the intermediate link 8, the balls 9. on the output shaft 11 with a shuffling bar 12.

The use of the invention allows, in comparison with the known ones with equal gear ratios, to reduce dimensions, weight, and increase loading capacity.

.

g

F

L

tJ

J

/one

R

IP

h

FIG.

BUT

Claims (1)

MECHANISM OF CRANE TURN, comprising a housing with an engine mounted in it with a drive shaft kinematically connected to a reduction gear having an output shaft, characterized in that, in order to simplify the design, the reduction gear is made of a two-stage sinus ball, containing the driving and driven ring links, respectively rigidly associated with the drive and output shafts, a separator fixed to the housing coaxially to the mentioned links, an intermediate ring link and balls, while the driving and driven ring links I am equipped with sinus-shaped treadmills made on their lateral surfaces, the intermediate ring link is coaxially placed relative to the other indicated links with a radial clearance, the separator is made in the form of a sleeve with through grooves for balls, coaxially with a radial clearance partially placed between the last and the driven ring links and the intermediate link is made with two rows of sinus-shaped treadmills on its lateral surface and with the possibility of interaction through balls and sinus-shaped E treadmills as a slave, since the second lead ring units. SU., „1263614