CN202707896U

CN202707896U - Rotating fluid damper

Info

Publication number: CN202707896U
Application number: CN 201220055120
Authority: CN
Inventors: 韩玉林; 万江; 贾春; 刘娟; 关庆港; 张居锁; 王芳
Original assignee: Southeast University
Current assignee: Southeast University
Priority date: 2012-02-20
Filing date: 2012-02-20
Publication date: 2013-01-30
Anticipated expiration: 2022-02-20

Abstract

Provided is a rotating fluid damper. The rotating fluid damper comprises an upper part and a lower part, wherein the upper part and the lower part are independent from each other. The upper part of the rotating fluid damper comprises an upper disc flange (1), a first permanent magnet block (7) and a first pressing block (5), wherein the first permanent magnet block (7) is fixed inside the upper-portion disc flange (1) through the first pressing block (5). The lower part of the rotating fluid damper comprises a disc (20), a lower disc flange (13) arranged opposite to the disc (20), and a hydraulic cylinder (11) connecting the disc (20) and the lower disc flange (13) in non-leakage mode. The lower disc flange (13), the disc (20) and the hydraulic cylinder (11) constitute a sealing non-leakage space, and damping fluid (8) fills the sealing non-leakage space. Blades inside the damper are driven to rotate by magnetic force, and when the blades rotate, the damping fluid flows through small round through holes in the blades. Energy is consumed when the damping fluid flows through the small round through holes (damping holes) in the blades, and therefore the effect of vibration control is achieved.

Description

The rotating fluid damper

Technical field

The utility model proposes a kind of rotating fluid damper, belong to field of vibration control.

Background technique

The rotating fluid damper is a kind of effective structural damping device, but there is the possibility of rotating fluid damper inner fluid seepage in the course of the work in the rotating fluid damper, and therefore in the occasion that does not allow leakage, the use of rotating fluid damper just is restricted.If use the rotating fluid damper in the occasion that does not allow leakage, so just need a kind of without the leakage rotating fluid damper.

Summary of the invention

Technical problem: the purpose of this utility model provides a kind of without the leakage rotating fluid damper, the structural vibration control when being specially adapted to not allow leakage.

Technological scheme: the utility model utilizes fluid motion power consumption that damping is provided, and selects nonmagnetic substance, damp liquid, permanent magnetic iron block as the stock of this rotating fluid damper, and damp liquid is full of in the closed hydraulic pressure cylinder.Specifically utilize the motion of magnetic force moving rotor blade, when rotor blade moved, the little round tube hole (damping hole) that damp liquid passes on the rotor blade played dissipative structure vibrational energy effect.

This rotating fluid damper comprises separate up and down two-part, and this rotating fluid damper top is divided and comprised: top disc flange, the first permanent magnetic iron block, the first briquetting, and the first permanent magnetic iron block is fixed in the disc flange of top by the first briquetting;

This rotating fluid damper bottom is divided and is comprised: disk, the lower disk flange that is oppositely arranged with disk, with disk and lower disk flange without leaking the oil hydraulic cylinder that is connected, lower disk flange, disk and oil hydraulic cylinder forming closed be without leakage space, and damp liquid is full of that this is closed without leakage space;

Part also comprises rotor blade, circular shaft, Hollow Cylindrical Shaft, stator blade, the second permanent magnetic iron block, the second briquetting under this rotating fluid damper; Hollow Cylindrical Shaft is enclosed within on the circular shaft, and Hollow Cylindrical Shaft contacts with circular shaft is smooth, and the lower end surface of circular shaft is connected without leaking with the lower disk flange, and the upper-end surface of circular shaft flushes with the outer surface of disk and is connected without leaking; The upper-end surface of Hollow Cylindrical Shaft contacts with the lower surface of disk is smooth, the smooth contact of upper surface of the lower end surface of Hollow Cylindrical Shaft and lower disk flange; Rotor blade one side is connected with Hollow Cylindrical Shaft, and the rotor blade opposite side contacts with oil hydraulic cylinder is smooth, and the upper-end surface of rotor blade contacts with the lower surface of disk is smooth, the smooth contact of upper surface of the lower end surface of rotor blade and lower disk flange; Stator blade one side is connected with oil hydraulic cylinder, and the opposite side of stator blade contacts with Hollow Cylindrical Shaft is smooth, and the upper-end surface of stator blade contacts with the lower surface of disk is smooth, the smooth contact of upper surface of the lower end surface of stator blade and lower disk flange; The second permanent magnetic iron block is fixed in the rotor blade by the second briquetting, and the roundlet through hole distributes along the short transverse of rotor blade.

Rotor blade and stator blade all are sector structure, the inside radius of rotor blade equals the outer radius of Hollow Cylindrical Shaft, the outer radius of stator blade equals the inside radius of oil hydraulic cylinder, rotor blade cylindrical contour about Hollow Cylindrical Shaft in oil hydraulic cylinder is uniform, stator blade inner circle contour about oil hydraulic cylinder in oil hydraulic cylinder is uniform, and every rotor blade is in the centre of two stator blades.

The axis of top disc flange, disk axis, lower disk flange, the axis of oil hydraulic cylinder, the axis of Hollow Cylindrical Shaft and the dead in line of circular shaft; The first permanent magnetic iron block the line of action of stressed system be simplified to Hollow Cylindrical Shaft when a bit, main line of action of vowing and the dead in line of Hollow Cylindrical Shaft, the acting surface of main square is vertical with the axis of Hollow Cylindrical Shaft; The second permanent magnetic iron block the line of action of stressed system be simplified to Hollow Cylindrical Shaft when a bit, main line of action of vowing and the dead in line of Hollow Cylindrical Shaft, the acting surface of main square is vertical with the axis of Hollow Cylindrical Shaft.

The roundlet through hole can change and is located on the stator blade, and distributes along the short transverse of stator blade.

When rotor blade has the roundlet through hole, on stator blade, have simultaneously the little round tube hole with the identical requirement of little round tube hole, namely the roundlet through hole on the stator blade distributes along the short transverse of stator blade.

During use, top disc flange (or lower disk flange) is bolted on the rotor, and lower disk flange (or top disc flange) is bolted on the static basis.

Beneficial effect: oil hydraulic cylinder, lower disk flange, disk form without leaking confined space, rotor blade is rotated around circular shaft at this confined space by magnetic force moving, when rotor blade rotates, damp liquid flows through the little round tube hole on the rotor blade, damp liquid consumes energy when flowing through roundlet through hole on the rotor blade, plays the effect that suppresses vibration.Because rotor blade is only moving without leaking in the confined space, and does not use motive sealing, the phenomenon of leakage of general rotating fluid damper in the vibration control process can not appear in this rotating fluid damper.

Description of drawings

Fig. 1 be the rotating fluid damper face the sectional structure schematic diagram;

Fig. 2 is the worm's eye view of Fig. 1 middle and upper part disc flange 1;

Fig. 3 is that the A-A of Fig. 2 middle and upper part disc flange 1 is to the sectional structure schematic diagram;

Fig. 4 is equipped with the A-A of top disc flange 1 of the first permanent magnetic iron block 7 to sectional view among Fig. 1;

Fig. 5 rotates the C-C of lower part of fluid damper to overlooking cross-sectional schematic among Fig. 1;

Fig. 6 is the plan view of rotor blade 10;

Fig. 7 is that the B-B of rotor blade 10 among Fig. 5 is to the sectional structure schematic diagram;

Fig. 8 is equipped with the B-B of rotor blade 10 of the second permanent magnetic iron block 21 and the second briquetting 18 to the sectional structure schematic diagram among Fig. 5;

Fig. 9 is the structural representation of a T shape cylindrical slot 23 among Fig. 3;

Figure 10 is the structural representation of the 2nd T shape cylindrical slot 24 among Fig. 7;

Have among the above figure: top disc flange 1, the first bolt hole 2, the first bolts 3, the first unthreaded hole 4, the first briquettings 5, the first tapped holes 6, the first permanent magnetic iron block 7, damp liquid 8, roundlet through hole 9, rotor blade 10, oil hydraulic cylinder 11, the second bolts hole 12, lower disk flange 13, circular shaft 14, Hollow Cylindrical Shaft 15, the second unthreaded holes 16, the second bolt 17, the second briquetting 18, the second tapped holes 19, disk 20, the second permanent magnetic iron block 21, stator blade 22, the one T shape cylindrical slot 23, the two T shape cylindrical slot 24, the cylindrical slot 25 that the upper width of the one T shape cylindrical slot 23 is less, the less cylindrical slot 28 of lower width of cylindrical slot 27, the two T shape cylindrical slot 24 that the upper width of cylindrical slot 26, the two T shape cylindrical slot 24 that the lower width of the one T shape cylindrical slot 23 is larger is larger.

Embodiment

Below in conjunction with accompanying drawing the utility model is described further.

The utility model proposes a kind of rotating fluid damper, utilize the rotor blade motion in the magnetic force moving damper, when rotor blade moves, damp liquid flows through the little round tube hole (damping hole) on the rotor blade, the effect of control vibration is played in power consumption when damp liquid flows through little round tube hole (damping hole) on the rotor blade.

Following explanation to embodiment of the present utility model in fact only is exemplary, and purpose never is to limit application of the present utility model or use.

The upper surface of this rotating fluid damper rotor blade 10 has the 2nd T shape cylindrical slot 24, the two T shape cylindrical slot 24 to be comprised of the less cylindrical slot 28 of the lower width of the 2nd T shape cylindrical slot 24 and the larger cylindrical slot 27 of upper width of the 2nd T shape cylindrical slot 24; The shape of the cylindrical slot 28 that the shape of the second column permanent magnetic iron block 21 and the 2nd T shape cylindrical slot 24 lower width are less is identical, the cylindrical slot 28 that the size of the second column permanent magnetic iron block 21 and the 2nd T shape cylindrical slot 24 lower width are less measure-alike; The second column permanent magnetic iron block 21 places in the less cylindrical slot 28 of the 2nd T shape cylindrical slot 24 lower width, the lower surface of the second column permanent magnetic iron block 21 and the 2nd T shape cylindrical slot 24 lower surfaces are fitted, and the lower surface of the cylindrical slot 28 that namely lower surface of the second column permanent magnetic iron block 21 and the 2nd T shape cylindrical slot 24 lower width are less is fitted; The magnetic pole of the second column permanent magnetic iron block 21 is at two end faces up and down; The shape of the cylindrical slot 27 that the shape of the second column briquetting 18 and the 2nd T shape cylindrical slot 24 upper width are larger is identical, the cylindrical slot 27 that the size of the second column briquetting 18 and the 2nd T shape cylindrical slot 24 upper width are larger measure-alike; The second tapped hole 19 is uniform along a circumference of the larger cylindrical slot 27 of the 2nd T shape cylindrical slot 24 upper width; The second unthreaded hole 16 is uniform along a circumference of the second column briquetting 18; The second column briquetting 18 places in the larger cylindrical slot 27 of the 2nd T shape cylindrical slot 24 upper width, the upper surface of the lower surface of the second column briquetting 18 and the second column permanent magnetic iron block 21 is fitted, the upper surface flush of the upper surface of the second column briquetting 18 and rotor blade 10; The quantity of the second unthreaded hole 16 on the second column briquetting 18 is identical with the quantity of the second tapped hole 19 of the 2nd T shape cylindrical slot 24 of rotor blade 10, the dead in line of the second tapped hole 19 of the 2nd T shape cylindrical slot 24 of the axis of the second unthreaded hole 16 on the second column briquetting 18 and rotor blade 10; When the threaded end of the second bolt 17 was passed the second unthreaded hole 16 and is screwed into the second tapped hole 19, the second bolts 17 and tightens, the second bolt 17 compressed the second column briquetting 18; Roundlet through hole 9 distributes along rotor blade 10 short transverses, and roundlet through hole 9 must not contact with the 2nd T shape cylindrical slot 24; The lower surface of top disc flange 1 has a T shape cylindrical slot 23, the one T shape cylindrical slot 23 to be comprised of a T shape cylindrical slot 23 upper width less cylindrical slot 25 and the larger cylindrical slot 26 of a T shape cylindrical slot 23 lower width; The shape of the cylindrical slot 25 that the shape of the first column permanent magnetic iron block 7 and a T shape cylindrical slot 23 upper width are less is identical, the cylindrical slot 25 that the size of the first column permanent magnetic iron block 7 and a T shape cylindrical slot 23 upper width are less measure-alike; The first column permanent magnetic iron block 7 places in the less cylindrical slot 25 of a T shape cylindrical slot 23 upper width, the upper surface of the upper surface of the first column permanent magnetic iron block 7 and a T shape cylindrical slot 23 is fitted, and the upper surface of the cylindrical slot 25 that namely upper surface of the first column permanent magnetic iron block 7 and a T shape cylindrical slot 23 upper width are less is fitted; Two magnetic poles of the first column permanent magnetic iron block 7 are at two end faces up and down; The shape of the cylindrical slot 26 that the shape of the first column briquetting 5 and a T shape cylindrical slot 23 lower width are larger is identical, the cylindrical slot 26 that the size of the first column briquetting 5 and a T shape cylindrical slot 23 lower width are larger measure-alike; The first tapped hole 6 is uniform along a circumference of the larger cylindrical slot 26 of a T shape cylindrical slot 23 lower width; At uniform the first unthreaded hole 4 of a circumference of the first column briquetting 5; The first column briquetting 5 places in the larger cylindrical slot 26 of a T shape cylindrical slot 23 lower width, the lower surface of the upper surface of the first column briquetting 5 and the first column permanent magnetic iron block 7 is fitted, and the lower surface of the first column briquetting 5 flushes with the lower surface of top disc flange 1; The quantity of the first unthreaded hole 4 on the first column briquetting 5 is identical with the quantity of the first tapped hole 6 of a T shape cylindrical slot 23 of top disc flange 1, the dead in line of the first tapped hole 6 of a T shape cylindrical slot 23 of the axis of the first unthreaded hole 4 on the first column briquetting 5 and top disc flange 1; When the threaded end of the first bolt 3 was passed the first unthreaded hole 4 and is screwed into the first tapped hole 6, the first bolts 3 and tightens, the first bolt 3 compressed the first column briquetting 5; The first bolt hole 2 is uniform along a circumference of top disc flange 1, and the first bolt hole 2 is distributed in beyond the T shape cylindrical slot 23; The dead in line of the axis of the axis of the axis of the axis of the axis of top disc flange 1, lower disk flange 13, oil hydraulic cylinder 11, disk 20, Hollow Cylindrical Shaft 15 and circular shaft 14; The upper surface of lower disk flange 13 is connected without leaking with the lower end surface of oil hydraulic cylinder 11, disk 20 is connected without leaking with the upper-end surface of oil hydraulic cylinder 11, circular shaft 14 lower end surfaces are connected without leaking with lower disk flange 13, the upper-end surface of circular shaft 14 flushes with the upper-end surface of disk 20 and is connected without leaking, and lower disk flange 13 seals out one with oil hydraulic cylinder 11, disk 20 and circular shaft 14 and is full of the closed without leakage space of damp liquid 8; The second bolt hole 12 is uniform along circumference on the lower disk flange 13, and the second bolt hole 12 is distributed in oil hydraulic cylinder 11 outsides; The inner diameter of Hollow Cylindrical Shaft 15 is slightly larger than the diameter of circular shaft 14, specifically require value according to conventional cylinder design, contact with the smooth outer surface of circular shaft 14 with the internal surface that guarantees Hollow Cylindrical Shaft 15, Hollow Cylindrical Shaft 15 is enclosed within on the circular shaft 14, the smooth contact of lower surface of the upper end of Hollow Cylindrical Shaft 15 and disk 20, the smooth contact of upper surface of the lower end of Hollow Cylindrical Shaft 15 and lower disk flange 13; Rotor blade 10 is sector structure, the radius of rotor blade 10 1 sides equals the outer radius of Hollow Cylindrical Shaft 15, and this side of rotor blade 10 is connected with the outer end of Hollow Cylindrical Shaft 15, the radius of rotor blade 10 opposite sides is slightly less than the inside radius of oil hydraulic cylinder 11, specifically require value according to conventional cylinder design, contact with the inner wall smooth of oil hydraulic cylinder 11 with this side that guarantees rotor blade 10; The smooth contact of lower surface of the upper-end surface of rotor blade 10 and disk 20, the smooth contact of upper surface of the lower end surface of rotor blade 10 and lower disk flange 13; Stator blade 22 is sector structure, the radius of stator blade 22 1 sides equals the inside radius of oil hydraulic cylinder 11, and this side of stator blade 22 is connected with the inwall of oil hydraulic cylinder 11, the radius of stator blade 22 opposite sides is slightly less than the outer radius of Hollow Cylindrical Shaft 15, specifically require value according to conventional cylinder design, be smoothly connected with this side and the Hollow Cylindrical Shaft 15 that guarantees stator blade 22, the smooth contact of lower surface of the upper-end surface of stator blade 22 and disk 20, the smooth contact of upper surface of the lower end surface of stator blade 22 and lower disk flange 13; Rotor blade 10 is symmetrical about Hollow Cylindrical Shaft 15 11 li of oil hydraulic cylinders, and stator blade 22 is symmetrical about circular shaft 14 11 li of oil hydraulic cylinders;

Each parts of this damper are except the first column permanent magnetic iron block 7 and the second column permanent magnetic iron block 21, other parts are all with non-ferromagnetic metal or alloy material (aluminum alloy for example, stainless steels etc.) make, the first column permanent magnetic iron block 7 and the second column permanent magnetic iron block 21 are all chosen the cylindrical magnet iron block.Roundlet through hole 9 is uniform along the short transverse of rotor blade 10, and the concrete process of making of rotating fluid damper can follow these steps to carry out:

The first step: according to the vibration control requirement, selected top disc flange 1, the first column briquetting 5, circular shaft 14, Hollow Cylindrical Shaft 15, the first column permanent magnetic iron blocks 7, disk 20, oil hydraulic cylinder 11, the second column briquettings 18, rotor blade 10, the second column permanent magnetic iron block 21, lower disk flange 13, the size of stator blade 22, the one T shape cylindrical slot 23 and the 2nd T shape cylindrical slot 24; Selected silicone oil is as damp liquid 8; According to the vibration control requirement, quantity, position and the size of selected the first bolt hole 2, the first unthreaded holes 4, the first tapped holes 6, the second bolts hole 12, the second unthreaded holes 16, the second tapped hole 19 and roundlet through hole 9.

Second step: an end of circular shaft 14 is welded on the upper surface of lower disk flange 13, Hollow Cylindrical Shaft 15 is enclosed within on the circular shaft 14; As shown in Figure 5, two less sides of rotor blade 10 radiuses are symmetrically welded at the outer side surface of Hollow Cylindrical Shaft 15; All must guarantee the dead in line of axis and the lower disk flange 13 of circular shaft 14 before and after the welding.

The 3rd step: as shown in Figure 5, two larger sides of stator blade 22 radiuses are symmetrically welded at the inner side surface of oil hydraulic cylinder 11;

The 4th step: the second column permanent magnetic iron block 21 is placed in the less cylindrical slot 28 of the lower width of the 2nd T shape cylindrical slot 24 of rotor blade 10, the arctic is down up in the magnetic pole South Pole of the second column permanent magnetic iron block 21; The lower surface of the lower surface of the second column permanent magnetic iron block 21 and the 2nd T shape cylindrical slot 24 is fitted, and the lower surface of the cylindrical slot 28 that namely lower width of the lower surface of the second column permanent magnetic iron block 21 and the 2nd T shape cylindrical slot 24 is less is fitted; The second column briquetting 18 is placed in the larger cylindrical slot 27 of the upper width of the 2nd T shape cylindrical slot 24, the upper surface of the lower surface of the second column briquetting 18 and the second column permanent magnetic iron block 21 is fitted, the upper surface flush of the upper surface of the second column briquetting 18 and rotor blade 10; Axial alignment (coincidence) with the second tapped hole 19 on the 2nd T shape cylindrical slot 24 of the axis of the second unthreaded hole 16 on the second column briquetting 18 and rotor blade 10, the threaded end of the second bolt 17 is passed the second unthreaded hole 16 to be screwed into the second tapped hole 19 and to tighten, when the second bolt 17 was tightened, the second bolt 17 compressed the second column briquetting 18.

The 5th step: oil hydraulic cylinder 11 is enclosed within on the lower disk flange 13, and guarantee to be welded on the stator blade 22 of oil hydraulic cylinder 11 inboards and to be welded on the rotor blade in Hollow Cylindrical Shaft 15 outsides about circular shaft 14 symmetries, the upper surface welding of the lower end surface of oil hydraulic cylinder 11 and lower disk flange 13 all must guarantee the dead in line of axis and the oil hydraulic cylinder 11 of lower disk flange 13 before and after the welding.

The 6th step: the circle centre position at disk 20 bores circular hole a, and the diameter of circular hole a is a bit larger tham the diameter (welding conditions are got concrete numerical value routinely) of circular shaft 14, the dead in line of the axis of circular hole a and disk 20; Axis symmetry about disk 20 is bored small sircle hole b and small sircle hole c on disk 20 again, small sircle hole b and small sircle hole c axis separately equal half of radius sum of the inside radius of oil hydraulic cylinder 11 and circular hole a from the distance of the axis of disk 20, half inside radius less than oil hydraulic cylinder 11 of small sircle hole b and small sircle hole c deduct circular hole a radius numerical value 1/2nd.

The 7th step: the 6th step was passed in the top of circular shaft 14 bore among the circular hole a, the lower surface of disk 20 is placed on the upper-end surface of oil hydraulic cylinder 11, with the upper-end surface of oil hydraulic cylinder 11 and the lower surface welding of disk 20, again with the upper-end surface of circular shaft 14 and disk 20 the 6th the step institute circular hole a place of boring weld, weld front and back and all must guarantee the axis of oil hydraulic cylinder 11, the axis of disk 20, the dead in line of circular shaft 14.

The 8th step: use first funnel that silicone oil is filled with oil hydraulic cylinder 11 as damp liquid by the 6th step small sircle hole b that bores, after observing damp liquid and filled with oil hydraulic cylinder 11 by small sircle hole b and small sircle hole c, again with the 6th go on foot the small sircle hole b that bores and small sircle hole c weld and block.

The 9th step: the first column permanent magnetic iron block 7 is placed in the less cylindrical slot 25 of the upper width of a T shape cylindrical slot 23 of top disc flange 1, the arctic is down up in the magnetic pole South Pole of the first column permanent magnetic iron block 7; The upper surface of the upper surface of the first column permanent magnetic iron block 7 and a T shape cylindrical slot 23 is fitted, and the upper surface of the cylindrical slot 25 that namely upper width of the upper surface of the first column permanent magnetic iron block 7 and a T shape cylindrical slot 23 is less is fitted; The first column briquetting 5 is placed in the larger cylindrical slot 26 of the lower width of a T shape cylindrical slot 23, the lower surface of the upper surface of the first column briquetting 5 and the first column permanent magnetic iron block 7 is fitted, and the lower surface of the first column briquetting 5 flushes with the lower surface of top disc flange 1; Axial alignment (coincidence) with axis with first tapped hole 6 of a T shape cylindrical slot 23 of top disc flange 1 of the first unthreaded hole 4 on the first column briquetting 5; The threaded end of the first bolt 3 is passed the first unthreaded hole 4 be screwed into the first tapped hole 6 and tighten, when the first bolt 3 was tightened, the first bolt 3 compressed the first column briquetting 5.

So far just can realize the utility model.

Claims

1. rotating fluid damper, it is characterized in that: this rotating fluid damper comprises separate up and down two-part, this rotating fluid damper top is divided and is comprised: top disc flange (1), the first permanent magnetic iron block (7), the first briquetting (5), and the first permanent magnetic iron block (7) is fixed in the top disc flange (1) by the first briquetting (5);

This rotating fluid damper bottom is divided and is comprised: disk (20), the lower disk flange (13) that is oppositely arranged with disk (20), with disk (20) and lower disk flange (13) without leaking the oil hydraulic cylinder (11) that is connected, lower disk flange (13), disk (20) and oil hydraulic cylinder (11) forming closed be without leakage space, and damp liquid (8) is full of that this is closed without leakage space;

Part also comprises rotor blade (10), circular shaft (14), Hollow Cylindrical Shaft (15), stator blade (22), the second permanent magnetic iron block (21), the second briquetting (18) under this rotating fluid damper; Hollow Cylindrical Shaft (15) is enclosed within on the circular shaft (14), Hollow Cylindrical Shaft (15) and smooth contact of circular shaft (14), the lower end surface of circular shaft (14) is connected without leaking with lower disk flange (13), and the upper-end surface of circular shaft (14) flushes with the outer surface of disk (20) and is connected without leaking; The smooth contact of lower surface of the upper-end surface of Hollow Cylindrical Shaft (15) and disk (20), the smooth contact of upper surface of the lower end surface of Hollow Cylindrical Shaft (15) and lower disk flange (13); Rotor blade (10) one sides are connected with Hollow Cylindrical Shaft (15), rotor blade (10) opposite side and smooth contact of oil hydraulic cylinder (11), the smooth contact of lower surface of the upper-end surface of rotor blade (10) and disk (20), the smooth contact of upper surface of the lower end surface of rotor blade (10) and lower disk flange (13); Stator blade (22) one sides are connected with oil hydraulic cylinder (11), the opposite side of stator blade (22) and smooth contact of Hollow Cylindrical Shaft (15), the smooth contact of lower surface of the upper-end surface of stator blade (22) and disk (20), the smooth contact of upper surface of the lower end surface of stator blade (22) and lower disk flange (13); The second permanent magnetic iron block (21) is fixed in the rotor blade (10) by the second briquetting (18), and little round tube hole (9) distributes along the short transverse of rotor blade (10).

2. rotating fluid damper according to claim 1, it is characterized in that: rotor blade (10) and stator blade (22) all are sector structure, the inside radius of rotor blade (10) equals the outer radius of Hollow Cylindrical Shaft (15), the outer radius of stator blade (22) equals the inside radius of oil hydraulic cylinder (11), rotor blade (10) is uniform at the inner cylindrical contour about Hollow Cylindrical Shaft (15) of oil hydraulic cylinder (11), stator blade (22) is uniform at the inner inner circle contour about oil hydraulic cylinder (11) of oil hydraulic cylinder (11), and every rotor blade (10) is in the centre of two stator blades (22).

3. described rotating fluid damper according to claim 1 is characterized in that: the axis of top disc flange (1), disk (20) axis, lower disk flange (13), the axis of oil hydraulic cylinder (11), the axis of Hollow Cylindrical Shaft (15) and the dead in line of circular shaft (14); The first permanent magnetic iron block (7) the line of action of stressed system be simplified to Hollow Cylindrical Shaft (15) when a bit, main line of action of vowing and the dead in line of Hollow Cylindrical Shaft (15), the acting surface of main square is vertical with the axis of Hollow Cylindrical Shaft (15); The second permanent magnetic iron block (21) the line of action of stressed system be simplified to Hollow Cylindrical Shaft (15) when a bit, main line of action of vowing and the dead in line of Hollow Cylindrical Shaft (15), the acting surface of main square is vertical with the axis of Hollow Cylindrical Shaft (15).

4. described rotating fluid damper according to claim 1 is characterized in that: little round tube hole (9) can change and is located on the stator blade (22), and distributes along the short transverse of stator blade (22).

5. described rotating fluid damper according to claim 1, it is characterized in that: when rotor blade (10) has little round tube hole (9), have simultaneously the little round tube hole with the identical requirement of little round tube hole (9) on stator blade (22), namely the roundlet through hole on the stator blade (22) distributes along the short transverse of stator blade (22).