CN103644206A

CN103644206A - Co-centric shaft connecting mechanism

Info

Publication number: CN103644206A
Application number: CN201310570807.4A
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: 2014-03-19

Abstract

The invention discloses a co-centric shaft connecting mechanism and belongs to the technical field of mechanical structures. The co-centric shaft connecting mechanism is characterized in that the end of a first connecting shaft and the end of a second connecting shaft are respectively provided with a first flange and a second flange, a vertically-through oblong auxiliary hole is formed in any position, close to the end, of the first connecting shaft or the second connecting shaft along a symmetric plane, a centering pin shaft is arranged in a middle hole of the shaft with the oblong auxiliary hole, one end of the centering pin shaft is inserted into a central blind hole of the end of the other shaft, and the first flange is connected and fixed with the second flange through a bolt. The co-centric shaft connecting mechanism has the advantages of being high in connecting precision and large in transmission torque. Moreover, the combination position of the co-centric shaft cannot be damaged easily.

Description

A kind of concentric shafts bindiny mechanism

Technical field

The present invention 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 in the situation that axial direction separately has larger mobile space, 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, when between two axles, axial direction moves again, that is: at two shaft ends that will connect, abut against under situation together, generally that the connection set of a pair of fixedly 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 the parts accuracy of manufacturing as location is difficult for guaranteeing in technique, so, coaxial accuracy between two axles is still difficult for guaranteeing, 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 object of the invention is to: for the existing above-mentioned defect of bindiny mechanism between existing two concentric shafts, a kind of concentric shafts bindiny mechanism of the installation position that the invention provides a kind of suitable axle under the narrower and small situation in the length direction space of axle.

A kind of concentric shafts of the present invention 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 near the position of end along symmetry plane position 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 present invention, coaxial accuracy dependence between two axles is arranged on two centering bearing pins between axle and guarantees, due to being installed, the hole of centering bearing pin in technique, very simply and easily guarantees precision, so, between two coupling shafts, also can guarantee 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.

Accompanying drawing explanation

Fig. 1 is plan view of the present invention;

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, the specific embodiment of the present invention is:

A kind of 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), with bolt (3), be connected and fixed.

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.Yi Zhong 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), with bolt (3), be connected and fixed.