CN2155015Y

CN2155015Y - Device for correcting fan dynamic equilibrium

Info

Publication number: CN2155015Y
Application number: CN 93215208
Authority: CN
Inventors: 张松海
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-06-10
Filing date: 1993-06-10
Publication date: 1994-02-02
Anticipated expiration: 2003-06-10

Abstract

The utility model relates to a device for correcting fan dynamic equilibrium, which is mainly provided with an inner protruding ring formed by integration injection moulding at the inner edge of an epitaxial shaft of a shaft center of a fan. Multiple tracks of protruding ribs are formed between the inner protruding ring and the epitaxial shaft. Balance weight slotted holes are formed between every two protruding ribs. The balance weight slotted holes can be used for inserting balance weight blocks with different length and weight, and the balance weight block and the balance weight slotted hole form a tight fit state to be used for correcting fan dynamic equilibrium. The utility model can reach the effect of dynamic equilibrium of the fan only by correcting the fan once.

Description

Device for correcting fan dynamic equilibrium

The utility model relates to a kind of device of recoverable fan power balance, it mainly is that an axle inner edge appropriate location at fan is provided with the counterweight slotted eye, and the balancing weight of different length, weight of in it, planting, be the state of closely cooperating between balancing weight and counterweight slotted eye, for proofreading and correct the fan power balance.

Be that the fan that material is made is used widely now with plastics, no matter be at home, in office space or the factory time, all as seen, reaching fan is used, cooperate power and after making its rotation by the what fan, can produce the air flow as the cool breeze, and can be suitable for human body or the heat radiation of factory building inner machine utilization, so fan produces close inseparable relation with daily life.

But general fan structure (as shown in Figure 6), it mainly is circular extension axle 30 places at Fan axial center, by extension axle 30 places outside integral injection molding multi-disc flabellum 31,32,33,34, yet, present plastic fan is when being used as power balance correction, when being installed on when rotating on the dynamic equilibrium inspection machine, it can show how much weight which limit need add, but in the operation of proofreading and correct balance, generally all take to strike off one side heavier on the blade with blade, but strike off blade because of operating blade in artificial mode, the weight that very difficult control need be struck off, and just can carry out in the time of when operation, the dynamic equilibrium inspection machine need being stopped, therefore often need multiplely back and forth strike off, proofread and correct, and in operation required activity duration often very long, and the related production efficiency that influences fan, again when striking off the flabellum edge, be easy to promptly because of carelessness that the flabellum place produces knife mark and the outward appearance that injures flabellum, therefore with cutter, the practicality of existing fan structure is not good, and the necessity that is improved is arranged.

Fundamental purpose of the present utility model is: the device that a kind of recoverable fan power balance is provided, it mainly is extension axle inner edge at Fan axial center, integral injection molding one internal projecting ring, form the multiple tracks fin in internal projecting ring and extension between centers, and between between each fin, be formed with the counterweight slotted eye, can supply the balancing weight of plant different length, weight in this counterweight slotted eye, and make between balancing weight and counterweight slotted eye and be the state of closely cooperating, for proofreading and correct the fan power balance,, the utility model once can make fan reach counterbalance effect so only need proofreading and correct.

Secondary objective of the present utility model is: a kind of device of recoverable fan power balance is provided, and it is when proofreading and correct fan, and the mode that does not need to strike off with cutter flabellum is the recoverable flabellum, so be difficult for undermining the exterior appearance of flabellum.

The device of recoverable fan power balance of the present utility model, it mainly is extension axle inner edge at Fan axial center, integral injection molding one internal projecting ring, form the multiple tracks fin in internal projecting ring and extension between centers, and between between each fin, be formed with the counterweight slotted eye, this counterweight slotted eye can adopt the mode of the closely cooperating balancing weight of different length, weight of planting, for proofreading and correct the fan power balance.

The device of aforesaid recoverable fan power balance is characterized in that: this counterweight slotted eye can be circular hole, and corresponding cooperation is cylindrical balancing weight.

The device of aforesaid recoverable fan power balance is characterized in that: this counterweight slotted eye can be rectangular opening, and the balancing weight of the rectangular body of corresponding cooperation.

The utlity model has following advantage:

1. when proofreading and correct the fan power balance, can choose the balancing weight 28 of suitable length, weight, plant is gone in the counterweight slotted eye 27 again, make and be the state of closely cooperating, and unlikelyly be subjected to the influence of fan rotary centrifugal force and deviate from, event only need be proofreaied and correct with the utility model and once can be made fan reach counterbalance effect, thereby improves the production efficiency of fan.

2. the utility model is when proofreading and correct the fan power balance, and not needing to strike off the flabellum edge with cutter can reach, so can make the outside of flabellum keep good aesthetic property.

Further specify architectural feature of the present utility model and purpose below in conjunction with accompanying drawing.

Brief Description Of Drawings:

Fig. 1 is a three-dimensional appearance exploded view of the present utility model.

Fig. 2 is a front plan view of the present utility model.

Fig. 3 is a longitudinal section of the present utility model.

Fig. 4 is another embodiment exploded view of the present utility model.

Fig. 5 is the front plan view of another embodiment of the present utility model.

Fig. 6 is the stereo appearance figure of existing fan structure.

The utility model is a kind of device (as shown in Figure 1 and Figure 2) of recoverable fan power balance, can find out one-piece construction of the present utility model among this figure, be extension axle 20 outer rims at Fan axial center 10, integral injection molding

multi-disc flabellum

21,22,23,24 in regular turn, the main design features of the utility model is: the inner edge in extension axle 20 forms an internal projecting ring 25, and form multiple tracks fin 26 between

extension axle

20 and 25 of internal projecting rings, 26 formation of each fin are a plurality of to have the circular counterweight slotted eye 27(of appropriate depth as shown in Fig. 2, Fig. 3);

A plurality of cylindrical balancing weights 28 can be made the specification that multiple length differs, weight differs in advance, can and 27 of aforesaid counterweight slotted eyes be corresponding states, simultaneously and balancing weight 28 is inserted in the aforesaid counterweight slotted eye 27.

When proofreading and correct the dynamic equilibrium of fan, to have fan of the present utility model is arranged on the dynamic equilibrium inspection machine, and fan is rotated, when fan has unbalanced situation after rotation, then can need increase the weight of how much weight via which side demonstrates on the dynamic equilibrium inspection machine, at this moment, then can choose suitable long severe, the balancing weight 28 of weight, balancing weight 28 is filled in the counterweight slotted eye 27, make 27 of balancing weight 28 and counterweight slotted eyes be the state of closely cooperating, and the rotation of reason fan the time is subjected to the influence of centrifugal force and deviates from, and therefore, the utility model only needs single job can finish the correction of fan power balance in timing.

Shown in Fig. 4, Fig. 5, with counterweight slotted eye 27 and balancing weight 28 identical among earlier figures 1, Fig. 2, can form the balancing weight 28 of rectangle slotted eye and cuboid respectively for another example, it also can make fan once promptly be corrected and finish in proofreading and correct on the fan power balance.

Claims

1, a kind of device of recoverable fan power balance, it is characterized in that: mainly be extension axle inner edge at Fan axial center, integral injection molding one internal projecting ring, form the multiple tracks fin in internal projecting ring and extension between centers, and between between each fin, be formed with the counterweight slotted eye, this counterweight slotted eye can adopt the mode of closely cooperating plant different length, weight, for proofreading and correct the balancing weight that the fan power balance is used.

2, the device of recoverable fan power balance according to claim 1 is characterized in that: this counterweight slotted eye can be circular hole, and corresponding cooperation is cylindrical balancing weight.

3, the device of recoverable fan power balance according to claim 1 is characterized in that: this counterweight slotted eye can be rectangular opening, and the balancing weight of the rectangular body of corresponding cooperation.