CN202659564U

CN202659564U - Blower rotor

Info

Publication number: CN202659564U
Application number: CN2012203140077U
Authority: CN
Inventors: 王丽
Original assignee: Baotou Iron and Steel Group Co Ltd
Current assignee: Baotou Iron and Steel Group Co Ltd
Priority date: 2012-06-22
Filing date: 2012-06-22
Publication date: 2013-01-09
Anticipated expiration: 2022-06-22

Abstract

The utility model relates to a blower rotor. The blower rotor comprises a blade and a rotor shaft, and is characterized in that four threaded holes are uniformly formed on reference circles with same radii on an end face of a non-driving end of the rotor shaft. By the blower rotor, the problems that the working process of the current 50-ton balancing machine cannot realize negative rotation and can only realize positive rotation, the difference of the unbalanced masses of a balancing rotor which is manufactured during non-working rotation (positive rotation) and a balancing rotor which is manufactured during working rotation (negative rotation) is 200 to 300 grams, thus the positive and negative rotations of the rotor are differently influenced by wind resistance, and the balancing rotor which is manufactured through non-working rotation (positive rotation) cannot be mounted and used on the spot are solved.

Description

A kind of blower rotor

Technical field:

The utility model relates to a kind of blower rotor.

Background technique:

Dynamic balancing machine is for the machine of measuring rotor unbalance, proofreaies and correct by its measurement result, is balanced the mass distribution of rotor with improvement, and the vibration of axle journal or the power that acts on bearing are reduced in the scope of regulation when making the rotor running.The major function of dynamic balancing machine is to measure.Sometimes also with correcting device, to improve balance efficiency.

At present, the rotor dynamic balancing that domestic and international balance mechanism is made highi degree of accuracy or affected by resistance of air adopts positive hole capital after selling all securities to carry out, that is: there is a closed shell top of balancing machine installation rotor, rotor is loaded onto balancing machine, then air in the housing is extracted out, become the vacuum storehouse, make so again dynamic balancing, there is not the impact of resistance of air fully, no matter the resultant error of clockwise and anticlockwise making gained differs very little and balance quality is high.But shortcoming is exactly that vacuum storehouse input cost is very high, and later maintenance also needs high business models, may not promote the use of.

The working procedure of 50 tons of balancing machines is to reverse, can only forward.At the balancing rotor that inoperative rotation direction (forward) balancing rotor of making and the rotation direction (counter-rotating) of working are made, unbalance mass, differs 200-300g.So the windage effect that the rotor clockwise and anticlockwise is subject to is different, more originally can't install and use at the scene with the balancing rotor that inoperative rotation direction (forward) is made.Fan rotor all is counter-rotating more than 90 percent, Gu this balancing machine can't satisfy the usage requirement of most of rotors.

Summary of the invention:

The purpose of this utility model provides a kind of a kind of blower rotor that can allow balancing machine reverse.

The purpose of this utility model is achieved in that

A kind of blower rotor comprises blade and rotor shaft, it is characterized in that: the identical standard pitch circle of radius is laid with 4 tapped holes on the anti-drive end end face of rotor shaft.

The beneficial effects of the utility model are: motor connects with rotor coupling during the rotor work on the spot, sees the rotation of rotor clockwise direction from drive end.Blower fan is put the cart before the horse, is uniform 4 tapped holes of anti-drive end 4 end faces at the fan shaft end, and then is connected with balancing machine, and the work on the spot direction of rotor and the operative orientation of balancing machine are consistent, so to greatest extent near the working state at rotor scene.

Description of drawings:

Fig. 1 is shaft side figure of the present utility model;

Fig. 2 is the cut-away view of the utility model Fig. 1;

Fig. 3 is the right elevation of the utility model Fig. 1.

Embodiment:

A kind of blower rotor comprises blade 2 and rotor shaft 1, it is characterized in that: the identical standard pitch circle of radius is laid with 4 tapped holes 4 on the anti-drive end end face of rotor shaft 1.

The coupling that shaft joint 3 these ends are housed at the drive end of rotor shaft 1 is connected with the coupling of motor shaft, 4 tapped holes 4 of uniform processing on the anti-drive end end face, the anti-drive end of rotor shaft 1 is connected with the balancing machine Hooks coupling universal coupling, when balancing machine is made balance like this, from motor coupler 3 these ends, turning to of rotor is consistent with the work on the spot direction, and near the working state at rotor scene, the balance quality of gained is higher to greatest extent.

Claims

1. a blower rotor comprises blade and rotor shaft, it is characterized in that: the identical standard pitch circle of radius is laid with 4 tapped holes on the anti-drive end end face of rotor shaft.