CN201262175Y

CN201262175Y - Screw type expansion coupling sleeve

Info

Publication number: CN201262175Y
Application number: CNU2008201326060U
Authority: CN
Inventors: 张新辉; 张英杰; 张伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-07-30
Filing date: 2008-07-30
Publication date: 2009-06-24
Anticipated expiration: 2018-07-30

Abstract

A rotary-type expansion coupler is provided with an inner ring and an outer ring, wherein expansion joints are formed along the axial direction on the lateral walls of the inner ring and the outer ring respectively. The inner ring and the outer ring are in threaded connection. The threads are in the shape of a frustum cone. The rotary-type expansion coupler ensures simple installation of the machine part and the shaft, which are in a transmission connection via the rotary-type expansion coupler, and ensures uniform stress of the thin-wall parts.

Description

The screw type expansion coupling sleeve

Technical field

The utility model belongs to a kind of transmission connecting piece, is specifically related to a kind of screw type expansion coupling sleeve.

Background technique

Expansion coupling sleeve is a kind of transmission connecting piece, and it can replace the connection effect of singly-bound and spline, realizes the connection of parts (as gear, flywheel, belt pulley etc.) and axle, in order to transfer charge.But existing product is installed complexity, is made the parts discontinuity.

Summary of the invention

The utility model is intended to overcome above-mentioned deficiency, provide a kind of installation simple, make the especially stressed uniform expansion coupling sleeve of thin-walled parts of parts.

The technological scheme that addresses the above problem is (referring to implementing illustration): the screw type expansion coupling sleeve, be provided with the interior ring that sidewall axially has the expansion joint respectively, and be threaded between the outer shroud, interior ring and outer shroud, this screw thread is a conical butt.

Install simply with axle by the parts that the utility model expansion coupling sleeve is in transmission connection, guaranteed the stressed even of thin-walled parts.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is a left view of the present utility model;

Fig. 3 is the structural representation of the interior ring among Fig. 1;

Fig. 4 is the left view of interior ring;

Fig. 5 is the structural representation of the outer shroud among Fig. 1;

Fig. 6 is the left view of outer shroud;

Fig. 7 is the structural representation of the nut among Fig. 1;

Fig. 8 is the left view of nut.

Specific embodiment

With reference to the accompanying drawings, describe the utility model in detail.

Fig. 1 is a structural representation of the present utility model; Fig. 2 is a left view of the present utility model; Fig. 3 is the structural representation of the interior ring among Fig. 1; Fig. 4 is the left view of interior ring; Fig. 5 is the structural representation of the outer shroud among Fig. 1; Fig. 6 is the left view of outer shroud.This screw type expansion coupling sleeve is provided with the interior ring 1 that sidewall axially has expansion joint 11,21 respectively, is threaded between the outer shroud 2, interior ring and outer shroud, and this screw thread is a conical butt.

Preferably, the wall thickness of described interior ring 1 and outer shroud 2 band expansion joints 11,21 one sides is less than the wall thickness of opposite side.

Fig. 7 is the structural representation of the nut among Fig. 1; Fig. 8 is the left view of nut.Further, the outer side wall of nut 3 and interior ring 1 is by being threaded, and is provided with some Cock screws 4 at the end face of nut 3, and this Cock screw 4 passes nut 3 and holds out against the end face of outer shroud 2, and the tip of interior ring 1 and the frustoconical threaded of outer shroud 2 is towards nut 3.By regulating Cock screw 4 parts and axle are located arbitrarily like this.

Working principle of the present utility model: tighten Cock screw 4, can axially hold out against outer shroud 2, ring 1 made it hold central shaft tightly in the effect by the tapered thread conical surface compressed, and strutted outer shroud 2 simultaneously, was connected with the swelling of parts endoporus; When needing dismounting, unclamp Cock screw 4 earlier, expansion coupling sleeve can be drawn off from transmission part.

Parts that are in transmission connection by the utility model spiral expansion coupling sleeve and axle, install simple, accurate positioning arbitrarily can be satisfied the requirement that highi degree of accuracy is in transmission connection, and this screw type expansion coupling sleeve is particularly suitable for the binding of thin-walled parts in highi degree of accuracy transmission, servomechanism, cam mechanism and uses.

Claims

1, screw type expansion coupling sleeve is characterized in that: be provided with the interior ring (1) that sidewall axially has expansion joint (11,21) respectively, be threaded between the outer shroud (2), interior ring and outer shroud, this screw thread is a conical butt.

2, screw type expansion coupling sleeve according to claim 1 is characterized in that: the wall thickness of ring (1) and outer shroud (2) band expansion joint (11, a 21) side is less than the wall thickness of opposite side in described.

3, screw type expansion coupling sleeve according to claim 1 and 2, it is characterized in that: the outer side wall of nut (3) and interior ring (1) is by being threaded, end face at nut (3) is provided with some Cock screws (4), this Cock screw (4) passes nut (3) and holds out against the end face of outer shroud (2), and the tip of the frustoconical threaded of interior ring (1) and outer shroud (2) is towards nut (3).