SU628354A1

SU628354A1 - Ball joint

Info

Publication number: SU628354A1
Application number: SU772487485A
Authority: SU
Inventors: Виталий Анатольевич Иванов
Original assignee: Ivanov Vitalij A
Priority date: 1977-05-19
Filing date: 1977-05-19
Publication date: 1978-10-15

Description

II

Изобретение относитс области машиностроени , а именно к устройствам дл соединени требующих взаимно фиксации звеньев пространственных механизмов .The invention relates to the field of engineering, namely to devices for connecting spatially requiring units of spatial mechanisms.

Известен сферический шарнир, содержащий составной корпус, схватывающий шаровую поверхность головки, св занной с соедин емым звеном l j .A spherical hinge is known, comprising a composite body grasping the spherical surface of the head associated with the linkable link l j.

Недостатком этого шарнира вл етс относительно мала площадь контактной поверхности в месте сочленени головки шарнира-гнездо, привод ща к низкой несущей способности и требующа высоких усилий дл взаимной фиксации соедин емых звеньев.The disadvantage of this hinge is the relatively small area of the contact surface at the point of articulation of the hinge head-socket, resulting in low bearing capacity and requiring high efforts for mutual fixation of the connected links.

Известен сферический шарнир, у которого контактна поверхность увеличена за счет деформируемых лепестков образованных прорез ми в пустотелой головке и размещенных при фиксации воздухом с помощью эластичной оболочки 2 .A spherical hinge is known, in which the contact surface is enlarged due to deformable petals formed by slots in the hollow head and placed when fixed by air using an elastic sheath 2.

Недостатками этого шарнира вл ютс сложность конструкции, необходимость использовани сжатого воздуха, недостаточно высока несуща способность .The disadvantages of this hinge are the complexity of the design, the need to use compressed air, the carrying capacity is not high enough.

Известен сферический шарнир, содержащий корпус, опорное гнездо, го2Known spherical hinge, comprising a housing, a support socket, go2

ловку сложной формы в виде шара и отделенного от wapa проточкой сферического сектора, опорные поверхности которого концентричны с шаровой поверхностью .dexterous complex shape in the form of a ball and a spherical sector separated from wapa by a groove of a spherical sector, whose bearing surfaces are concentric with a ball surface.

Этот шарнир обладает развитой кон тактной поверхностью и не требует ,дл осуществлени фиксации применени сжатого воздуха .This hinge has a developed contact surface and does not require, for fixing, the use of compressed air.

Однако такой шарнир имеет недостаточную несущую способность и повышенное усилие, необходимое при фиксации в случае износа контактных поверхностей или в случае недостаточно точнрго изготовлени головки и деталей опорного гнезда,However, such a hinge has insufficient bearing capacity and increased force required when fixing in case of wear of the contact surfaces or in the case of insufficiently accurate manufacturing of the head and parts of the support socket,

Целью изобретени вл етс повышение несущей способности и снижение усили фиксации шарнира.The aim of the invention is to increase the carrying capacity and reduce the force of fixation of the hinge.

Дл этого в предлагаемом шарнире головка и опорное гнездо выполнены из набора колец со сферической поверхностью , VcTaHOBленных подвижно в осевом направлении относительноFor this, in the proposed hinge, the head and the bearing seat are made of a set of rings with a spherical surface, VcTaHOB movable axially relative to

Claims

the axles of the trunnion and the body, some of which, counting through one, are fixed against rotation relative to the trunnion, the other rings are relative to the body, one of the rings is rigidly fixed at the end of the trunnion, and the solid angle of the spherical surfaces of all the rings is smaller than 2 ng steradian. fixation of the rings could be performed using the profile. compounds, e.g. multifaceted. FIG. 1 presents the proposed longitudinal section spherical HNR; in fig. 2 is a cross-sectional view along A-A in FIG. 1. The spherical hinge comprises a housing 1 with a nut-lock 2, a trunnion 3. In the cavity of the housing between the bottom and the clamping nut there are concentric spherical rings 4 and 5 of the supporting seat and the head. Rings interact with each other when tilting the pin and fixing on spherical surfaces. Rings 4 interact with the body on the lateral surface 6. Rings 5 interact with the pin on the surface of the hole 7. Between the case and the rings 5, the pin 3 and the rings 4 have gaps 8 and 9 which allow the rings 5 to move relative to the rings 4 or vice versa around a common center. Ring 10 when cooked to the axle .3. The ball joint works as follows. After loosening the latching nut 2, the pin and with it the rings 5, set in the desired position relative to the housing 1. Then tighten the latching lock 2, compressing the rings 4 and 5 between them. Under the action of frictional forces from the compressive force, the rings are secured against movement of the trunnion relative to the body. The spherical hinge provides a multiple increase in bearing capacity and a decrease in locking force. Claim 1. Spherical hinge comprising a body, a support socket, a head with a trunnion, a lock nut with a spherical bearing surface, transmitting force to the head, so that you can increase the bearing capacity and reducing the force of fixation, the head of the hinge and the bearing seat are made of a set of rings with a spherical surface that are installed movably in the axial direction relative to the axle of the trunnion and the body, some of which, considering one, are fixed from turning relative to the trunnion, and the rest flax body, with one of the rings rigidly fixed at the end of the trunnion, and the solid angle of the spherical surfaces of all rings is made less than 211 steradians, 2. The spherical hinge according to claim 1, characterized in that the fixation of the rings is performed using a profile connection. 3. Spherical hinge according to claims 1 and 2, characterized in that the profile joint is multi-faceted. Sources of information taken into account during the examination: 1. USSR author's certificate No. 376060, M.kl. R 16 C 11/06, 1973.

2. USSR author's certificate number 418113, M.cl. R 16 C 11/06, 1972.

3. The patent of Germany No. 909872, cl. 47 B 13, 1949.,