SU1337589A1 - Sine-ball reduction unit - Google Patents

Abstract

The invention relates to mechanical engineering and can be used as a sinus ball reducer in various drives, mainly in the drilling technique. In order to increase the durability of the reducer by uniformly distributing the load between the rows, containing planetary rows, including each inner 3 and outer 5 sleeves with sinusoidal treadmills and a carrier 7 with ball satellites, each outer sleeve is made of two interacting longitudinal side surfaces unequal sectors 9 and 10, the smallest of which is connected to housing 1, for example, by a weld 11. During operation of the gearbox, the possibility of elastic displacements of the sectors of 9 bushings relative to Cpusa provides load balancing between rows. 1 3.p. f-ly. 2 Il. ((L 13 1 with CO

Description

The invention relates to mechanical engineering and can be used as a gearbox mainly in drilling equipment.

The aim of the invention is to increase durability by uniformly distributing the load between the rows of the gearbox.

FIG. 1 schematically shows a sinus gear reducer, a cross-section; in FIG. 2 - sweep treadmills, see and work, and the work gear.

Sinus ball reducer includes a housing 1, a driving shaft 2, planetary rows, including each inner sleeve 3 connected to the drive shaft with a sinusoidal treadmill 4, a cylindrical outer sleeve 5 with a sinusoidal treadmill 6, drove 7 with longitudinal windows, spherical satellites placed in them 8 .. The outer sleeve of each row is made of two interacting ones, with each other by longitudinal side surfaces of unequal sectors 9 and 10, the smaller of which 9 is connected to the body, for example, by means of a weld 11.

To ensure the possibility of multiple disassembly and assembly of the gearbox, the arc length S, smaller than sector 9 along the inner circumference, is selected from the condition

s

(0.9-1.0) 3,

where S is the arc length in the same region between the ball satellites.

1 arcs are denoted by S (M ,,, N |

On cb. and s.

The manufacture and assembly of the gearbox is carried out in the following sequence. After making a sinusoidal treadmill, longitudinal cuts 12 and 13 are made on these sleeves on the inner surface of each of the outer sleeves 5 and thereby cut a smaller sector.

Next, the following assembly operations are sequentially performed: a number of inner sleeves 3 are fastened on the drive shaft 2 by means of the keys 14, the carrier 7 and the sector 10 of each loading sleeve 5 are aligned, through the groove formed due to the absence of the sector 9, into

five

0

five

0

five

0

five

d t ball satellites 8, then install the sector 9 of each outer sleeve 5, place the assembled gear in the housing 1, and then through the holes in the housing 1 weld the sector 9 to the housing 1, brew at the same time and these holes.

In order to carry out a subsequent disassembly and new assembly of the gearbox, the drive shaft 2 is turned to a position in which none of the ball satellites 8 come into contact with sector 9 (the condition of this condition is realized by the aspect ratio 958). After that, the gearbox is moved relative to the housing 1 in the axial direction, the withdrawal of the sector 10 of the outer sleeves 5 from the anchoring with the sectors 9 fixed in the housing 1. Further disassembly of the proposed sinus ball multi-reducer gearbox is carried out in the same order as gearboxes.

Sinuscular gearbox works as follows.

Thanks to the weld seam 11, the sector 9 of each outer sleeve 5 is secured against turning relative to the housing 1 and keeps the sector 10 of each outer sleeve 5 from turning. The torque is transmitted from the drive shaft 2 through a series of inner sleeves 3 by means of ball satellites 8 to the driver 7. In this case, thanks to the longitudinal cuts 12 and 13 in each outer sleeve 5, the elastic deformations of these bushings are free, with the result that the torque is evenly divided between the individual rows of the gearbox, which allows to achieve high their performance in terms of reliability and durability of the proposed gearbox.

Claims (2)

1. A sinus ball reducer, comprising a housing, a drive shaft and planetary rows, each including two coaxially mounted bushes with sinusoidal treadmills, internally of which is connected to the drive shaft, a carrier with longitudinal windows and spherical satellites placed in them u and so that, in order to increase durability, the outer sleeve of each the row is made of two interacting with each other longitudinal side surfaces of unequal sectors, the smaller of which is connected to the body. 2. The gearbox according to claim 1, characterized in that the length of the arc S smaller sector around the inner circumference is selected from the condition S (09-1,0) S, where S is the arc length along the same circle between the ball satellites. Editor Y. Sereda Compiled by G. Kuznetsova Tehred L. Serdyukova Proofreader N. Korol Order 4111/32 Circulation 811 Subscription VNR1IPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5 Production and printing company, Uzhgorod, st. Project, 4 FIG. 2