SU709411A1

SU709411A1 - Self-locking differential gear

Info

Publication number: SU709411A1
Application number: SU772438421A
Authority: SU
Inventors: Юрий Михайлович Шмаков; Иван Иванович Жевлаков; Виктор Борисович Горюнов; Александр Анатольевич Распопов
Original assignee: Предприятие П/Я Г-4695
Priority date: 1977-01-07
Filing date: 1977-01-07
Publication date: 1980-01-15

Description

1one

Изобретение относитс к области транспортногр машиностроени , в частности к дифференциалам .The invention relates to the field of transport engineering, in particular to differentials.

Известен самоблокирующийс дифференциал содержащий корпус с расположенными в нем полуосевыми шестерн ми, сателлиты, установленные на оси, фрикционную муфту, состо щую из нажимных дисков со скошенными пазами, ведущих дисков, установленных в шлицах корпуса , ведомых дисков, установленных в шлицах полуосевых шестерен, и упругий элемент дл поджати дисков фрикционной муфты 1 .A known self-locking differential comprising a housing with semi-axial gears arranged in it, satellites mounted on an axis, a friction clutch consisting of pressure disks with beveled grooves, driving disks mounted in the slots of the housing, driven disks mounted in the splines of the axial gears, and elastic the element for pressing the discs of the friction clutch 1.

Недостатками этого дифферени 1ала вл ютс повышенный износ, плоха управл емость, низкий срок службы.The disadvantages of this differentiation are increased wear, poor handling, low service life.

Цель изобретени - повышение срока службы дифференциала.The purpose of the invention is to increase the service life of the differential.

С этой целью предлагаемый дифференциал снабжен распорными кольцами, а в корпусе выполнены овальные радиальные отверсти ,To this end, the proposed differential is equipped with spacer rings, and in the case there are oval radial holes,

мала ось овалов которых равна диаметру распорных колец, при этом каждое распорное кольцо установлено на оси дифференциала в отверсти х между нажимными дисками.the small axis of the ovals of which is equal to the diameter of the spacer rings, with each spacer ring mounted on the axis of the differential in the holes between the pressure discs.

На фиг. 1 изображен дифференциал, продольньЕЙ разрез; на фиг. 2 - то же, поперечный разрез; на фиг. 3 - вид по стрелке А на фиг. 1 , на фиг. 4 - разрез по Б-Б на фиг. 1.FIG. 1 shows a differential, longitudinal section; in fig. 2 - the same, cross section; in fig. 3 is a view along arrow A in FIG. 1, in FIG. 4 is a section along BB in FIG. one.

Самоблокирующийс дифференциал состоит из корпуса 1 со сквозными пазами 2, крышки 3, полуосевых шестерен 4, установленных на радиально-упорных подшипниках 5, сателлитов 6, установленных на оси 7, распорных колец 8, размешенных в овальных отверсти х 9 корпуса 1 с зазорами В и Г, а мала ось овальных отверстий 9 равна диаметрам распорных колец 8. Наружные поверхности распорных колец 8 контактируют со скошенными пазами 10 нажимных дисков 11, фрикционных муфт, состо ших из ведущих 12 и ведомых 13 дисков , поджатых упругим элементом 14.The self-locking differential consists of body 1 with through slots 2, cover 3, semi-axial gears 4 mounted on angular contact bearings 5, satellite 6 mounted on axis 7, spacer rings 8 placed in oval holes 9 of body 1 with gaps B and G, and the small axis of the oval holes 9 is equal to the diameters of the spacer rings 8. The outer surfaces of the spacer rings 8 are in contact with the beveled grooves of the 10 pressure disks 11, friction clutches consisting of the driving 12 and the driven 13 disks, which are pressed by the elastic element 14.

Самоблокирующий дифференциал работает следующим образом.Self-locking differential works as follows.

Claims

In the unloaded state, the disks 12, 13 of the friction clutches are compressed by the elastic element 14 with little effort, therefore the blocking torque of the differential is negligible. When a differential torque increases to the housing 1, the spacer rings 8, moving in the circumferential direction, gradually select the gap B in the oval holes 9 of the housing 1. Thanks to their interaction with the curved slots 10 of the pressure disks 11, the compression force of the elastic element 14 and Disks 12, 13. Friction clutches, which causes an increase in the blocking torque of the differential. After selecting the gap B, despite the increase in the input torque, the blocking torque of the differential ceases to increase, since the force from the spacer rings 8 is transmitted directly to the housing 1. To avoid an increase in the locking torque from the friction of the half-axle gears 4 on the housing I and the differential cover 3 radial-resistant support bearings are installed, which prevent axial shticon 4 from moving, thus improving the operation of gearing (semi-axial comb 4 with satellites 6). T / XJIff and 7 of FIG. CH 4 Claims of the Invention A self-locking differential comprising a housing with semi-axial shchestreni located in it, satellites mounted on an axis, a friction clutch consisting of pressure discs with slotted grooves, driving disks mounted in the housing slots, drive plates mounted on axle axle shchestren, and an elastic element for pressing the friction clutch discs, characterized in that, in order to increase the service life of the differential, it is equipped with spacer rings, and in the housing are oval The main holes, the small axis of the ovals of which is equal to the diameter of the spacer rings, each spacer ring mounted on the axis of the differential in the holes between the Pressure Discs. Sources of information taken into account in the examination 1. Patent of Germany No. 1086564, cl. 63 C 13/10, 1961. / 2

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