CN211373926U

CN211373926U - Dynamic balance self-calibration rotor

Info

Publication number: CN211373926U
Application number: CN201922483969.XU
Authority: CN
Inventors: 蒋宝华
Original assignee: Nanjing Nanhua Inspection And Testing Technology Co ltd
Current assignee: Jiangsu Jiemeng Special Equipment Technology Co ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-08-28
Anticipated expiration: 2029-12-30

Abstract

The utility model belongs to the technical field of dynamic balance testing machine detection, and discloses a dynamic balance self-calibration rotor, which comprises an impeller (1), wherein 8 weight holes (2) are arranged on the end surface of the impeller (1) along the circumferential direction of the impeller (1); the distance between the axis of each weight hole (2) and the center of the end face of the impeller (1) is equal; the weight holes (2) are arranged in an array. The utility model discloses a rotor can regard as the self calibration rotor of dynamic balance testing machine, and record both sides unbalance amount data can obtain different angle rotor unbalance amounts in different sides and different angle counter weight screws, has verified the reliability that testing machine detected data, also provides the assurance for the detection quality of device fan rotor simultaneously.

Description

Dynamic balance self-calibration rotor

Technical Field

The utility model relates to a dynamic balance testing machine detects technical field, particularly, is a dynamic balance self calibration rotor.

Background

Dynamic balance test: that is, the components which perform the action balance detection and correction on the rotor and make the rotation movement in the process of meeting the use requirement, such as various transmission shafts, main shafts, fans, water pump impellers, cutters, rotors of motors and turbines, etc., are collectively called as a rotator.

When the dynamic balance testing machine detects a unilateral rotor (air inlet rotor), when the thickness/diameter of the impeller is smaller than 1/8, a static balance mode in a dynamic balance test is adopted for detection, detection data show that the quantity of the two sides of the impeller to be removed is very large, but the displayed angles of the weight removing surfaces on the two sides are 180 degrees, actually, the unbalance quantity of the impeller is large without display data, the detection and display cannot simply adopt unilateral unbalance data, otherwise, the impeller disposal error is easily caused.

Disclosure of Invention

An object of the utility model is to provide a dynamic balance self calibration rotor can regard as dynamic balance testing machine's self calibration rotor, records both sides unbalance amount data.

The utility model discloses a following technical means realize: a dynamic balance self-calibration rotor comprises an impeller, wherein 8 weight holes are formed in the end face of the impeller along the circumferential direction of the impeller; the distance between the axis of each weight hole and the center of the end face of the impeller is equal; the weight ports are arranged in an array.

Preferably, the specification of the weight ports is M6, and the distance from the axial center of each weight port to the center of the impeller end surface is 125 mm.

Preferably, the axial center position of the impeller is further provided with a connecting shaft, and the axis of the connecting shaft is perpendicular to the plane of the impeller.

Preferably, the end face of the free end of the connecting shaft is further provided with 6 threaded holes in an array mode along the circumferential direction of the connecting shaft, and the distance from the axis of each threaded hole to the center of the circle of the end face of the connecting shaft is 25 mm.

Preferably, the specification of the threaded hole is M6.

Preferably, the connecting shaft has a diameter of 60mm and a length of 1168 mm.

Preferably, the impeller has a diameter of 300 mm.

Preferably, the impeller has a thickness of 30 mm.

Preferably, the free end face of the connecting shaft is provided with a boss, the diameter of the boss is 25mm, and the height of the boss protruding out of the plane of the connecting shaft is 2 mm.

The utility model discloses a rotor can regard as the self calibration rotor of dynamic balance testing machine, and record both sides unbalance amount data can obtain different angle rotor unbalance amounts in different sides and different angle counter weight screws, has verified the reliability that testing machine detected data, also provides the assurance for the detection quality of device fan rotor simultaneously.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a left side view of FIG. 1;

fig. 3 is an enlarged view of a portion a in fig. 1.

Wherein, the impeller is 1, the counterweight port is 2, the connecting shaft is 3, the threaded hole is 4, and the lug boss is 5.

Detailed Description

The following examples further illustrate embodiments of the present invention. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

Example (b):

referring to fig. 1, a dynamic balance self-aligning rotor includes an impeller 1 and a connecting shaft 3, the connecting shaft 3 is coaxial with the impeller 1 and the connecting shaft 3 is perpendicular to the plane of the impeller 1. The diameter of the connecting shaft 3 is 60mm, the length is 1168mm, the diameter of the impeller 1 is 300mm, and the thickness is 30 mm.

8 weight ports 2 are arranged on the end surface of the impeller 1 along the circumferential direction of the impeller 1; the distance between the axis of each weight hole 2 and the center of the end face of the impeller 1 is equal; the weight port 2 is the array setting, and the specification is M6 the utility model discloses in, particularly, the distance of the axle center of every weight port 2 apart from impeller 1 terminal surface centre of a circle is 125mm, that is to say, the diameter of the circumference at the centre of a circle place of 8 weight ports 2 is 250 mm.

Be equipped with boss 5 on the terminal surface of the free end of connecting axle 3, the 5 diameters of boss are 25mm and the protrusion highly is 2mm in the 3 planes of connecting axle, the utility model discloses in, boss 5 and universal joint's concentric groove looks adaptation to play concentric or coaxial effect. When the boss 5 is processed, the coaxiality of the rotor needs to be ensured.

Still array sets up 6 screw holes 4 along 3 circumferencial directions of connecting axle, and screw holes 4 evenly distributed is the circumference array setting around boss 5. The distance from the axis of each threaded hole 4 to the center of the end face of the connecting shaft 3 is 25mm, that is to say. The diameter of the circle where the centers of the 6 threaded holes 4 are located is 50 mm. The specification of the threaded hole 4 is also M6.

When in use, the utility model is used for cleaning the inner wall of the tank,

one screw (weighed) of M6 was weighed on one side of the impeller 1, a dynamic balance test was performed, data was recorded, and a screw of the same weight was weighed 180 ° on the other side of the impeller, and a test was performed again, and data was recorded. Different sides and different angle counter weight screws of rotor can obtain different angle rotor unbalance amounts, verify the reliability of testing machine detection data, also provide the assurance for the detection quality of device fan rotor simultaneously.

Therefore, the rotor can be used as a self-calibration rotor of a dynamic balance testing machine, and unbalance data on two sides can be recorded. And the unbalance amount of the standard rotor is very small, and the unbalance amount displayed on the testing machine mainly comes from the testing machine, the detection sensitivity of the sensor and the concentricity of the rotor.

The embodiments of the present invention have been described in detail with reference to the examples, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, and the scope of protection is still within the scope of the invention.

Claims

1. A dynamically balanced, self-aligning rotor comprising an impeller (1), characterized in that: 8 weight holes (2) are formed in the end face of the impeller (1) along the circumferential direction of the impeller (1); the distance between the axis of each weight hole (2) and the center of the end face of the impeller (1) is equal; the weight holes (2) are arranged in an array.

2. The dynamically balanced, self-aligning rotor of claim 1, wherein: the specification of the weight ports (2) is M6, and the distance from the axis of each weight port (2) to the center of the end face circle of the impeller (1) is 125 mm.

3. The dynamically balanced, self-aligning rotor of claim 1, wherein: the axial center of the impeller (1) is also provided with a connecting shaft (3), and the axis of the connecting shaft (3) is vertical to the plane of the impeller (1).

4. The dynamically balanced, self-aligning rotor of claim 3, wherein: the end face of the free end of the connecting shaft (3) is further provided with 6 threaded holes (4) in an array mode along the circumferential direction of the connecting shaft (3), and the distance between the axis of each threaded hole (4) and the center of the circle of the end face of the connecting shaft (3) is 25 mm.

5. The dynamically balanced, self-aligning rotor of claim 4, wherein: the specification of the threaded hole (4) is M6.

6. The dynamically balanced, self-aligning rotor of claim 4, wherein: the diameter of the connecting shaft (3) is 60mm, and the length is 1168 mm.

7. The dynamically balanced, self-aligning rotor of claim 5, wherein: the diameter of the impeller (1) is 300 mm.

8. The dynamically balanced, self-aligning rotor of claim 6, wherein: the thickness of the impeller (1) is 30 mm.

9. The dynamically balanced, self-aligning rotor of claim 8, wherein: the free terminal surface of connecting axle (3) be equipped with boss (5), boss (5) diameter be 25mm and protrusion in connecting axle (3) plane height be 2 mm.