CN203627560U

CN203627560U - Connecting mechanism of concentric shafts

Info

Publication number: CN203627560U
Application number: CN201320722524.2U
Authority: CN
Inventors: 孙生强
Original assignee: Suzhou Lanwang Machine Tools Technology Co Ltd
Current assignee: Suzhou Lanwang Machine Tools Technology Co Ltd
Priority date: 2013-11-17
Filing date: 2013-11-17
Publication date: 2014-06-04
Anticipated expiration: 2023-11-17

Abstract

The utility model discloses a connecting mechanism of concentric shafts and belongs to the technical field of mechanical structures. The connecting mechanism is characterized in that a flange A and a flange B are respectively arranged at end parts of a connecting shaft A and a connecting shaft B, a rectangular technological hole which runs through the upper part and the lower part is arranged in any position of the connecting shaft A or the connecting shaft B, close to the end parts along a symmetrical plane position, a centering pin shaft is arranged in a middle hole of the shaft provided with the rectangular technological hole, one end of the centering pin shaft is spliced in a center blind hole at the end part of the other shaft, and the flange A and the flange B are connected and fixed by a bolt. The connecting mechanism of the concentric shafts disclosed by the utility model has the advantages of high connecting precision, large transmission torque and low damage possibility of binding sites.

Description

One concentric shafts bindiny mechanism

Technical field

The utility model relates to a kind of concentric shafts bindiny mechanism, especially the connection request adapting between two axles of ask for something has higher coaxality, and a kind of concentric shafts bindiny mechanism of the installation position of axle under the narrower and small situation in the length direction space of axle, belongs to mechanical structure technical field.

Background technique

In mechanical transmissioning technology field, often two two axles in same axis position need to be coupled together rigidly, when two axles have larger mobile space at axial direction separately, the end face of the general joint area at two axles is made the convex-concave positioning element mutually agreeing with, the binding site of two axles now separates certain distance, to the convex-concave positioning element mutually agreeing with is staggered, afterwards again by after two convex-concave positioning elements combinations that mutually agree with, again two axles are connected and fixed, in the time that between two axles, axial direction moves again, that is: abut against under situation together at two shaft ends that will connect, it is generally the connection set that a pair of fixing semicircular arc is installed on the cylindrical of the connection end of two axles, as: Chinese invention patent application number is: 200420017256.5 are called: a kind of fine hitch bar of multiple spindle joint transmission, adopt exactly structure described above, the device of this class formation is because component are more, especially in technique, be difficult for ensureing as the parts accuracy of manufacturing of location, so, coaxial accuracy between two axles is still difficult for ensureing, simultaneously, owing to being subject to the restriction of structure, under larger torque force effect, the easy stressed damage in shaft connection place, working life is lower, user cost is higher.

Summary of the invention

The purpose of this utility model is: for the existing above-mentioned defect of bindiny mechanism between existing two concentric shafts, and a kind of concentric shafts bindiny mechanism of the installation position that the utility model provides a kind of suitable axle under the narrower and small situation in the length direction space of axle.

A kind of concentric shafts described in the utility model bindiny mechanism, it is by coupling shaft first, centering bearing pin, bolt, flange first, flange second, coupling shaft second, institute forms, it is characterized in that: flange first and flange second are made respectively in described coupling shaft first and the end of coupling shaft second, any one spindle first or coupling shaft second are shaped with the rectangular auxiliary hole of up/down perforation along symmetry plane position near the position of end therein, in the intermediate hole of axle that is shaped with rectangular auxiliary hole, centring pin axle is housed, one end of described centering bearing pin is plugged in the end central blind hole of an other axle, between flange first and flange second, be joined with bolts.

Beneficial effect: in the utility model, coaxial accuracy dependence between two axles is arranged on two centering bearing pins between axle and ensures, because the hole that centering bearing pin is installed very simply and easily ensures precision in technique, so, between two coupling shafts, also can ensure to have higher coaxality, meanwhile, between two axles, rely on frictional force each other and the shearing force of bolt to carry out transmitting torque, also there is transmitting torque larger, the non-damageable advantage of binding site.

Brief description of the drawings

Fig. 1 is plan view of the present utility model;

Fig. 2 is the sectional view of the A-A direction of Fig. 1;

Shown in figure: 1, coupling shaft first; 2, centering bearing pin; 3, bolt; 4, flange first; 5, flange second; 6, coupling shaft second; 7, rectangular auxiliary hole.

Embodiment

In conjunction with Fig. 1 and Fig. 2, embodiment of the present utility model is:

One concentric shafts bindiny mechanism, it is by coupling shaft first (1), centering bearing pin (2), bolt (3), flange first (4), flange second (5), coupling shaft second (6), institute forms, it is characterized in that: described coupling shaft first (1) is made respectively flange first (4) and flange second (5) with the end of coupling shaft second (1), any one spindle first (1) or coupling shaft second (6) are shaped with the rectangular auxiliary hole (7) of up/down perforation along symmetry plane position near the position of end therein, in the intermediate hole of axle that is shaped with rectangular auxiliary hole (7), centring pin axle (2) is housed, one end of described centering bearing pin (2) is plugged in the end central blind hole of an other axle, between flange first (4) and flange second (5), be connected and fixed with bolt (3).

In the process of assembling, first make the axis between two roughly align, centering bearing pin (2), pack in the axle center hole with rectangular auxiliary hole (7) in advance, simultaneously, make the to feel relieved end of bearing pin (2) is outstanding, uses the corresponding instrument bearing pin (2) that will make to feel relieved from the position of rectangular auxiliary hole (7) to wear in the center hole of the other axle of people.

Claims

1. a concentric shafts bindiny mechanism, it is characterized in that: coupling shaft first (1) is made respectively flange first (4) and flange second (5) with the end of coupling shaft second (1), any one spindle first (1) or coupling shaft second (6) are shaped with the rectangular auxiliary hole (7) of up/down perforation along symmetry plane position near the position of end therein, in the intermediate hole of axle that is shaped with rectangular auxiliary hole (7), centring pin axle (2) is housed, one end of described centering bearing pin (2) is plugged in the end central blind hole of an other axle, between flange first (4) and flange second (5), be connected and fixed with bolt (3).