CN103410777A

CN103410777A - Fan blade

Info

Publication number: CN103410777A
Application number: CN2013103630107A
Authority: CN
Inventors: 龙晓斌
Original assignee: Zhongshan Oms Industrial Co Ltd
Current assignee: Chenzhou Zhizao Technology Co., Ltd.
Priority date: 2013-08-19
Filing date: 2013-08-19
Publication date: 2013-11-27
Anticipated expiration: 2033-08-19
Also published as: CN103410777B

Abstract

The invention relates to a fan blade which is provided with a fan blade body, wherein the fan blade body is strip-shaped and is hollow inside, the cavity is extended in the length direction of the fan blade body and penetrates through two ends of the fan blade body. The fan blade is characterized in that a plurality of pairs of ribs are arranged on the upper and lower sides of the head part of the fan blade body in the cavity and are provided with notches, all notches are opposite to form a clamping space capable of clamping plate-like bodies, and the fan blade body is provided with a plurality of installation through holes on the upper and lower wall surfaces of the position of the clamping space. According to the invention, the clamping space is used for clamping the plate-like fan blade frame, and the fan blade is tightly fastened by a bolt penetrating through the installation through hole and is hard to loose; furthermore, the fan blade is simple in structure and high in safety degree.

Description

A kind of fan blade

(1) technical field

The present invention relates to a kind of fan blade.

(2) background technique

The fan blade of Industrial fan is generally longer, weight is larger, and its mounting point often is positioned at the top of factory building central position, in the running of fan, the vibration and the airflow fluctuation that cause due to rotation, fan blade very easily breaks away from from fan board, and even fracture, can damage staff's person of working below fan.In order to alleviate the weight of fan blade, fan blade is made hollow, but hollow fan blade how to be fixedly mounted in the fan frame on this problem perplexing people always.

(3) summary of the invention

The object of the present invention is to provide a kind of fan blade, can be installed on securely on the fan frame, increase and use margin of safety.

For achieving the above object, the present invention is by the following technical solutions:

A kind of fan blade, has the flabellum body, described flabellum body is strip, the flabellum body interior has cavity, cavity extends and runs through flabellum body two ends along flabellum body length direction, it is characterized in that: in the upper and lower bi-side of flabellum body head position, be provided with some to convex tendon in described cavity, each described convex tendon is equipped with breach, each described breach is built into a grasping part that can clamp tabular body in opposite directions, and the flabellum body arranges some installation through holes in two walls up and down of described grasping part position.

The present invention can improve by following scheme:

Described breach is right-angle notch.

Described flabellum body tail end face is equipped with an empennage.

Described empennage is planar, and an end is conical nose, and the other end is square afterbody, and the width of conical nose is less than square afterbody, and conical nose is to one side bending of empennage, and conical nose is towards the direction of advance of flabellum.

In described cavity, also be provided with safety line, described safety line two ends are fixed on flabellum body two ends.

Described convex tendon extends and connects described cavity along flabellum body length direction.

When described fan blade is installed on fan board, in described cavity, also be provided with safety line, safety line one end is fixed on flabellum body afterbody, and the other end is fixed on described fan board.

The present invention adopts described grasping part that the flabellum frame of tabular body is clamped, then by bolt, passes described installation through hole flabellum is fastened, and flabellum is difficult for loosening, and simple in structure, margin of safety is high.

(4) accompanying drawing explanation

Fig. 1 is that fan blade is assembled in the view on fan board;

Fig. 2 is fan blade three-dimensional state schematic diagram;

Fig. 3 is the three-dimensional state schematic diagram at another visual angle of fan blade;

Fig. 4 is a schematic cross section of flabellum body head;

Fig. 5 is the schematic cross section of flabellum body head while being arranged on fan board;

Fig. 6 is be clamped and connected schematic cross section after piece of flabellum body afterbody;

Fig. 7 is the front schematic view of empennage.

(5) embodiment

A kind of fan blade as shown in Figures 1 to 7, it has flabellum body 10, and described flabellum body 10 is strip, and flabellum body 10 inside have cavity 12, and cavity 12 extends and runs through flabellum body 10 two ends along flabellum body 10 length directions.

In described cavity 12, be provided with some to convex tendon (14 in the flabellum body 10 upper and lower bi-side of head position, 15), each described convex tendon (14,15) be equipped with breach 14-1, each described breach is built into a grasping part 11 that can clamp tabular body in opposite directions, and up and down two walls of flabellum body 10 in described grasping part 11 positions arrange some installation through hole 10-1.In fact, described every pair of convex tendon (14,15) all can connect and form a stiffening rib to increase the intensity of flabellum, described breach 14-1 can form from the outward extending platform in stiffening rib side and stiffening rib side by one, is that upper and lower convex tendon connects and forms as stiffening rib in Fig. 4 16.So above-mentioned breach 14-1 can be right-angle notch.General fan board has a plurality of tabular bodys, and tabular body is put in described cavity 12, and tabular body, just by described grasping part 11 clampings, is difficult for loosening.As shown in Figure 5, when fan blade and fan board are installed while being connected, the assembly department 100 of fan board puts in described grasping part 11, and bolt, from after the assembly department of through hole is installed is entered grasping part 11 and pass fan board, using nut screwing clamping, makes fan blade be difficult to break away from fan board.

Two walls up and down of cavity 12 also are provided with and strengthen rib 17 on the offer both sides that through hole is installed, and to increase the intensity of fan body, make on the other hand to install through hole and obtain reinforcement on the one hand, more compact while making described grasping part 11 clamping fan board.

As shown in Figure 6, described cavity 12 also can be arranged to the same structure of its head with an accommodating contiguous block 20, an empennage 21 to be installed on contiguous block 20 in flabellum body 10 afterbodys.Described empennage 21 nestles up the end face of flabellum body 10 afterbodys after installing for planar, described empennage 21 1 ends are conical nose 21-1, the other end is square afterbody 21-2, the width of conical nose 21-1 is less than square afterbody 21-2, conical nose 21-1 is to one side bending of empennage 21, and conical nose 21-1 is towards the direction of advance of flabellum.At flabellum body 101 afterbodys, empennage 21 is installed, in the time of eliminating the fan rotation, outwards passes airflow obstruction, reduce energy loss, stablize fan running, raise the efficiency.

In described cavity 12, also be provided with safety line 30, described safety line 30 two ends are fixed on flabellum body 10 two ends.In the working procedure of fan, if the fan blade section of fragmenting into, this safety line 30 plays the effect of each section of series connection, and is unlikely to from the factory building top directly to fall in ground, causes staff's personal injury.Certainly, when described fan blade was installed on fan board, safety line can be fixed on flabellum body afterbody by an end, and the other end is fixed on described fan board.

Above-described embodiment is preferred embodiments of the present invention; but embodiments of the present invention are not limited to this; other are any does not deviate from change, the modification done under Spirit Essence of the present invention and principle, substitute, combination, simplify; be equivalent substitute mode, within being included in protection scope of the present invention.

Claims

1. fan blade, has the flabellum body, described flabellum body is strip, the flabellum body interior has cavity, cavity extends and runs through flabellum body two ends along flabellum body length direction, it is characterized in that: in the upper and lower bi-side of flabellum body head position, be provided with some to convex tendon in described cavity, each described convex tendon is equipped with breach, each described breach is built into a grasping part that can clamp tabular body in opposite directions, and the flabellum body arranges some installation through holes in two walls up and down of described grasping part position.

2. a kind of fan blade according to claim 1, it is characterized in that: described breach is right-angle notch.

3. a kind of fan blade according to claim 1, it is characterized in that: described flabellum body tail end face is equipped with an empennage.

4. a kind of fan blade according to claim 3, it is characterized in that: described empennage is planar, an end is conical nose, the other end is square afterbody, the width of conical nose is less than square afterbody, and conical nose is to one side bending of empennage, and conical nose is towards the direction of advance of flabellum.

5. according to the arbitrary described a kind of fan blade of claim 1 to 4, it is characterized in that: in described cavity, also be provided with safety line, described safety line two ends are fixed on flabellum body two ends.

6. a kind of fan blade according to claim 5 is characterized in that: described convex tendon extends and connects described cavity along flabellum body length direction.

7. according to the arbitrary described a kind of fan blade of claim 1 to 4, it is characterized in that: when described fan blade is installed on fan board, in described cavity, also be provided with safety line, safety line one end is fixed on flabellum body afterbody, and the other end is fixed on described fan board.