CN203278431U - Bidirectional dynamic balance rotor - Google Patents

Abstract

The utility model relates to a rotor capable of maintaining bidirectional dynamic balance. According to a motor in the prior art, a rotor is made into a ring which is inwardly recessed so as to achieve balance. With the inwardly-recessed ring-shaped rotor adopted, a contact area can be larger, as a result, noise is large, and vibration is violent, the abrasion of a bearing can be accelerated, and a mechanical life can be shortened. The bidirectional dynamic-balance rotor of the utility model comprises a rotor main body and a rotating shaft penetrating the rotor main body; a rhombus-shaped groove is formed on the outer wall of the rotor main body; and a connecting line of diagonal lines of the groove is overlapped with the axis of the rotor main body; and sharp corners at two sides of the groove face the rotation direction of the rotor main body. According to the bidirectional dynamic-balance rotor, a rotor dynamic balance principle is adopted, such that noise caused by mechanical vibration can be decreased, and the abrasion of the bearing can be decelerated, and the mechanical life can be prolonged.

Description

Two-way Rotors in Dynamic Balance

Technical field

The utility model relates to a kind ofly can keep two-way dynamically balanced rotor.

Background technology

The prior art motor mostly makes for reaching dynamic balancing the circle that falls on rotor.The words contact area of circle is large, makes noise large, and vibration is violent, accelerates bearing wear, has shortened mechanical endurance.

When parts that part rotates, such as rotor of various power transmission shafts, main shaft, blower fan, water pump vane, cutter, motor and steam turbine etc., be referred to as revolving body.When revolving body rotated and do not rotate in ideal conditions, the pressure that bearing is produced was the same, and such revolving body is the revolving body of balance.But the various revolving bodies in engineering, the error that produces in inhomogeneous or blank defective, processing and assembling due to material, just have the many factors such as asymmetrical geometry when even designing, make revolving body when rotated, the centrifugal intertia force that on it, each small particle produces can not be cancelled out each other, centrifugal intertia force is applied on machinery and basis thereof by bearing, cause vibration, produced noise, accelerate bearing wear, shorten mechanical endurance, can damage incidents when serious.

The utility model content

The technical problem that one, will solve

The purpose of this utility model is for the existing the problems referred to above of prior art, and it is a kind of simple in structure that the spy provides, and is convenient to make, and noise is low, the two-way Rotors in Dynamic Balance that the life-span is long

Two, technical scheme

For solving the problems of the technologies described above, the two-way Rotors in Dynamic Balance of the utility model, include rotor subject and run through the rotating shaft of rotor subject, wherein, offer the groove of rhombus on the outer wall of described rotor subject, the line of a pair of linea angulata of this groove and the dead in line of rotor subject, the wedge angle of described groove both sides points to respectively the gyratory directions of rotor subject.

As optimization, the number of degrees at the angle at described wedge angle place are 60 °.

Three, the beneficial effects of the utility model

Use the rotor dynamic balancing principle can reduce the noise that mechanical oscillation produce, speed reduction bearing wearing and tearing, prolonged mechanical life-span.

Description of drawings

Fig. 1 is the structural representation of the two-way Rotors in Dynamic Balance of the utility model.

In figure, 1 is rotor subject, and 2 are rotating shaft, and 3 is groove, and 4 is wedge angle.

Embodiment

Below in conjunction with accompanying drawing, the two-way Rotors in Dynamic Balance of the utility model is described further:

Execution mode one: as shown in Figure 1, the two-way Rotors in Dynamic Balance of the utility model, include rotor subject 1 and run through the rotating shaft 2 of rotor subject 1, wherein, offer the groove 3 of rhombus on the outer wall of described rotor subject 1, the line of these groove 3 a pair of linea angulatas and the dead in line of rotor subject 1, the wedge angle 4 of described groove 3 both sides points to respectively the gyratory directions of rotor subject 1; The number of degrees at the angle at described wedge angle 4 places are 60 ° and use the rotor dynamic balancing principle can reduce the noise that mechanical oscillation produce, speed reduction bearing wearing and tearing, prolonged mechanical life-span.

The above is only preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model know-why; can also make some improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.

Claims (2)

1. two-way Rotors in Dynamic Balance, include rotor subject and run through the rotating shaft of rotor subject, it is characterized in that: the groove that offers rhombus on the outer wall of described rotor subject, the line of a pair of linea angulata of this groove and the dead in line of rotor subject, the wedge angle of described groove both sides points to respectively the gyratory directions of rotor subject.

2. two-way Rotors in Dynamic Balance described according to right 1 is characterized in that: the number of degrees at the angle at described wedge angle place are 60 °.

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