SU887822A1

SU887822A1 - Two part insulated connection

Info

Publication number: SU887822A1
Application number: SU792719938A
Authority: SU
Inventors: Александр Сергеевич Степанов
Original assignee: Предприятие П/Я М-5537
Priority date: 1979-02-01
Filing date: 1979-02-01
Publication date: 1981-12-07

Description

(54) ИЗОЛИРОВАННОЕ СОЕДИНЕНИЕ ДВУХ ДЕТАЛЕЙ(54) ISOLATED JOINT OF TWO PARTS

1one

Изобретение относитс к области машиностроени и может найти применение в приборостроение при необходимости изол ции резьбового элемента и гайки.The invention relates to the field of mechanical engineering and can be used in instrumentation if it is necessary to isolate a threaded element and nut.

Известно устройство дл стопорен изолированного болта, на стержне которого установлена изолирующа втулка, а под головкой - изолирующа прокладка с двум стопорными шайбами. Шайбы установлены по обе стороны изолирующей прокладки и отогнуты на ее грани,при этом верхн шайба также отогнута на грань головки болта, а нижн шайба - в отверстие на соедин емой детали Г П.A device for locking an insulated bolt is known, on the core of which an insulating bushing is installed, and under the head an insulating gasket with two locking washers. The washers are installed on both sides of the insulating gasket and bent on its face, while the top washer is also bent to the edge of the bolt head, and the bottom washer to the hole in the part to be joined.

Недостатки известного устройства наличие отдельной операции стопорени болтовогосоединени отгиба стопорных шайб на грани болта; отсутствие свободного доступа с двух сторон к болтовому соединению (дл фиксации гайки при вращении болта или наоборот ); отсутствие возможности дл совмещени фиксации одновременно гайки и закрепл емой к корпусу детали при вращении болта.The disadvantages of the known device are the presence of a separate operation for locking the bolted connection of the limb of lock washers on the verge of the bolt; the lack of free access from both sides to the bolted joint (for fixing the nut when the bolt is rotating or vice versa); the inability to combine fixing at the same time the nut and the part fixed to the body when the bolt rotates.

Наиболее близким к предлагаемому вл етс изолированное соединение двух деталей, содержащее резьбовой элемент, установленный в соосных отверсти х соедин емых деталей, и стопорную йзолирунлцую втулку, размещенную на резьбовом элементе 2.Closest to the present invention is an insulated connection of two parts, comprising a threaded element mounted in the coaxial holes of the parts to be joined, and a stop bushing mounted on the threaded element 2.

10ten

В таком соединении стопорна изолирующа втулка устанавливаетс на торец одной из соедин емых деталей с помощью прилива, имеющего форму загнутой пластины.In such a connection, a stop insulating sleeve is mounted on the end of one of the parts to be joined with the aid of a tide having the shape of a bent plate.

fSfS

Недостатком данного соединени вл етс сложность его сборки и разборки в местах с односторонним доступом.The disadvantage of this connection is the complexity of its assembly and disassembly in places with one-sided access.

Цель изобретени - упрощение сборки и разборки соединени в труднодоX ступных местах с односторонним доступом .The purpose of the invention is to simplify the assembly and disassembly of the joint in hard-to-reach places with one-sided access.

Claims

This is achieved by the fact that in an insulated connection of two parts, co3 holding a threaded element mounted in the coaxial holes of the parts to be joined, and a stopper insulating sleeve placed on the threaded element are last made with face flats in the upper part, with an external annular groove and end grooves -en "1, coaxially with the axis of the sleeve and installed with a radial and face gap in the hole of one of the joints e x x parts, while the height of the top end groove exceeds the axial gap, the hole in the part under station PORN grommet formed an oval with the size of the logo ma diameter exceeding the size of the sleeve between the end lyskaksh and a lower end recess strengthened nut. FIG. 1 shows the isolation of the connection of two parts until the moment of tightening; in fig. 2 is a view A of FIG. 1 in FIG. 3 - connection after tightening The connection contains parts 1 and 2, pinhole 3, nut 4 and stop insulating sleeve 5, made with face flats 6, outer ring groove 7 and end recesses 8 and 9. Stop insulating sleeve 5 is installed in the hole ct parts 1 with radial and axial in the gaps. The height of the upper end recess 8 exceeds the axial clearance B Hole d of borehole 1 has an oval shape with a size of small diameter exceeding the size of the sleeve between the face races 6. The nut 4 is fixed in the bottom end recess 9. When assembling the joint in an inaccessible place to the stop insulating sleeve (. The part 2, which was previously installed in part 1, was attached to the part 1 and secured it with a threaded element 3, keeping the tulk from turning with a wrench. When tightening the threaded element 3, the upper part of the sleeve is elastically deformed when sampling the axial clearance is securely fastened to the part 1. Such a connection ensures the isolation of the parts and their reliable connection. The locking of the threaded element and allows for assembly in a hard-to-reach place with one-sided access. Formula of the Invention An isolated connection of two parts containing the threaded element installed in coaxial holes of the connected parts, and a stop insulating sleeve placed on the threaded element, characterized in that, in order to simplify assembly and disassembly, in hard-to-reach places with one-sided access, the stopper insulating sleeve is made with face flats in the upper part, with an external annular groove and end grooves coaxial with the axis of the sleeve, and installed with a radial and face gaps in the hole of one of the parts to be connected, the height of the upper of the mechanical recess exceeds the axial gap, the hole in the part for the locking insulating sleeve is oval-shaped, with a small diameter size exceeding the size of the sleeve between the face flats, and in the bottom end-window recess fortified nut. Sources of information taken into account in the examination 1. USSR author's certificate number 407101, cl. F 16 B 39/10, 1972.

2. US patent number 3.331.273, cl. 85-32, 1977.