CN213511039U

CN213511039U - Wind power generation tower cylinder

Info

Publication number: CN213511039U
Application number: CN202022508279.8U
Authority: CN
Inventors: 董茂奇
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-11-03
Filing date: 2020-11-03
Publication date: 2021-06-22
Anticipated expiration: 2030-11-03

Abstract

The utility model discloses a wind power generation tower cylinder, which comprises a tower cylinder body; further comprising: the device comprises a stepping motor, a lead screw, a guide rod, a nut mounting disc, a mass ring, a steel wire rope, a water storage tank and a water pump; the utility model provides a tower section of thick bamboo sets up anti vibration damping device in inside, prevent external environment's erosion, cooperation through lead screw and screw fixed disk, receive and release the regulation to wire rope's effective length, through the storage water tank, the cooperation of water pump, water and the drainage of watering to exchange water tank inside, the realization is to the regulation control of quality ring weight, quality and wire rope's effective length according to actual measurement result adjustment quality ring, confirm anti vibration damping device's frequency and damping, the transverse vibration and the torsional vibration of wind power generation tower have been reduced through the vibration control technique, practice thrift the structure cost of high-power fan.

Description

Wind power generation tower cylinder

Technical Field

The utility model relates to a wind power generation tower vibration control technical field, more specifically the wind power generation tower section of thick bamboo with vibration damper that says so relates to.

Background

Wind power generation is the main mode of wind energy utilization, and the large-scale of a generator set is the development trend of the generator set. Wind power generation towers are generally of a single-tube tower structure, and large generator sets require thicker and higher towers to bear upper eccentric mass and load. The eccentric mass and load act on the top of the wind power generation tower to cause transverse and torsional vibration, which easily causes resonance and generator loss.

To solve this problem, more and more anti-vibration damping devices are mounted on the tower of the wind turbine. For example, the utility model with the name of wind power generation tower ring type shock absorber with the publication number of CN202689230U discloses a shock absorber consisting of a mass ring, a bolt, an anti-collision rubber ring, a steel wire rope and a connecting lug plate. Wherein, the mass ring is connected with the anti-collision rubber ring through a bolt; the connecting lug plates are connected to the wind power generation tower drum and the mass ring, the upper end and the lower end of the steel wire rope are respectively connected to the connecting lug plates on the wind power generation tower drum and the mass ring, and the mass ring is suspended outside the top of the wind power generation tower drum through the steel wire rope. The utility model discloses can be under the condition that does not increase wind power generation tower structure material quantity, does not increase structural rigidity, through the lateral vibration and the torsional vibration that vibration control technique reduced wind power generation tower, practice thrift the structure cost of high-power fan.

However, in practical use, the mass ring is arranged on the outer side of the tower, which is easy to install, but is easy to corrode and damage; in addition, the control operations such as position adjustment and mass increase of the mass ring are not easy to be realized in practical use, and the control effect is greatly influenced.

Therefore, an urgent need exists in the art for a wind turbine tower with vibration damping and easy control and adjustment.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a wind power generation tower section of thick bamboo aims at solving above-mentioned technical problem.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a wind power generation tower comprises a tower body; further comprising: the device comprises a stepping motor, a lead screw, a guide rod, a nut mounting disc, a mass ring, a steel wire rope, a water storage tank and a water pump;

a plurality of limiting rings are circumferentially and uniformly fixed on the inner side wall of the tower barrel body on the same horizontal plane; a lower support frame and an upper support frame are horizontally fixed on the inner side wall of the tower cylinder body, the lower support frame is positioned above the limiting rings, and the upper support frame is positioned above the lower support frame;

the stepping motor is fixed in the center of the top surface of the lower support frame, and a power output shaft of the stepping motor faces upwards;

the lead screw is vertically arranged; the bottom end of the lead screw is fixedly connected with a power output shaft of the stepping motor, and the top end of the lead screw is rotatably connected with the bottom surface of the upper support frame;

the guide rods are multiple and are vertically arranged around the lead screw in a surrounding manner; two ends of the guide rod are respectively fixedly connected with the lower support frame and the upper support frame;

the middle part of the nut mounting disc is provided with a threaded hole in threaded connection with the lead screw, the threaded hole is in threaded connection with the lead screw, and a guide hole in sliding connection with the guide rod is formed in the nut mounting disc;

the mass ring is horizontally arranged below the plurality of limiting rings; the outer ring of the mass ring is fixedly sleeved with a rubber ring, and the inner ring is fixedly provided with an annular adjusting water tank;

the number of the steel wire ropes is the same as that of the limiting rings; one end of the steel wire rope is fixed with the mass ring, the rope body penetrates through the limiting ring, and the other end of the steel wire rope is fixed with the edge of the nut mounting disc;

the water storage tank is fixed on the bottom surface of the middle part of the lower support frame; the bottom of the water storage tank is communicated with the top surface of the regulating water tank through a water conveying pipeline; the water conveying pipeline is provided with an electromagnetic valve;

the water pump is fixed the top surface of under bracing frame, the water inlet of water pump through first return water pipeline with surge tank's bottom surface intercommunication, the delivery port through the second return water pipeline with the lateral wall top of storage water tank intercommunication.

Through the technical scheme, the utility model provides a tower section of thick bamboo sets up anti vibration damping device in inside, prevent external environment's erosion, cooperation through lead screw and screw fixed disk, receive and release the regulation to wire rope's effective length, through the storage water tank, the cooperation of water pump, water and the drainage are watered to exchange water tank inside, the realization is to the regulation and control of quality ring weight, quality and wire rope's effective length according to actual measurement result adjustment quality ring, confirm anti vibration damping device's frequency and damping, the transverse vibration and the torsional vibration of wind power generation tower have been reduced through vibration control technique, practice thrift high-power fan's structure cost.

The technical scheme of the utility model in, in order to realize the storage water tank with moisturizing between the surge tank is taken water, can the exhaust hole is seted up to surge tank's top surface. Meanwhile, a water pipe connected with an external water source supply device can be installed on the water storage tank. Because the water storage tank and the adjusting water tank are basically in a closed state, the water evaporation is less, and water can be supplemented through manual disassembly. When the design, the volume of adjusting water tank is less than the volume of storage water tank, even the water yield constantly evaporates, also can satisfy the long-time use of adjusting water tank. All these are conventional operation means in the prior art, and are not described herein again.

Preferably, in the wind power generation tower cylinder, the number of the limiting rings and the number of the steel wire ropes are 4. The structural stability of the normal state and the motion state of the quality ring can be ensured.

Preferably, in the wind power generation tower barrel, a first lug plate for being fixedly connected with the steel wire rope is fixed to the top edge of the mass ring; and a second lug plate fixedly connected with the steel wire rope is fixed at the edge of the nut mounting disc. The steel wire rope is convenient to connect and fix.

Preferably, in the wind power generation tower cylinder, the top edge and the bottom edge of the mass ring are provided with radially protruding limit convex rings, and the two limit convex rings form a mounting groove for fixing the rubber ring. The rubber ring can be prevented from being collided and damaged.

Preferably, in the wind power generation tower cylinder, the lower support frame includes a lower support plate arranged horizontally, and a plurality of lower support beams fixed to edges of the lower support plate and an inner wall of the tower cylinder body; the bottom ends of the stepping motor, the water pump and the guide rod are fixed to the top surface of the lower supporting plate, and the water storage tank is fixed to the bottom surface of the lower supporting plate. The structural characteristics of lower carriage can enough guarantee the fixed mounting of each part and the fixed of self, can not cause the position to interfere again to the connection of wire rope and pipeline simultaneously.

Preferably, in the wind power generation tower barrel, the water storage tank is fixed on the bottom surface of the lower support plate through a flange plate. Convenient connection and strong stability.

Preferably, in the wind power generation tower cylinder, the upper support frame includes an upper support plate arranged horizontally, and a plurality of upper support beams fixed to the edge of the upper support plate and the inner wall of the tower cylinder body; the lead screw pass through the bearing with go up the backup pad and rotate and be connected, the top of guide bar with go up backup pad fixed connection. The structural characteristics of lower carriage can enough guarantee the fixed mounting of each part, can guarantee the fixing of self again.

Preferably, in the wind power generation tower cylinder, the water storage tank is of a cylindrical structure, and the bottom surface of the water storage tank is flush with the mounting surface of the limiting ring. The water storage tank is ensured not to interfere the up-and-down movement and shaking of the mass ring.

Preferably, in the wind power generation tower, the number of the guide rods is 4. The stability of screw mounting disc removal is improved.

Preferably, in a wind power tower of the above kind, the first water return line is located outside the mass ring. The first water return pipeline is prevented from interfering with the movement.

It should be noted that, the utility model discloses an install the acceleration sensor who is used for detecting the vibration on the tower section of thick bamboo, adjust according to detecting the structure, here is the conventional structure among the prior art, the utility model discloses a focus lies in arranging and adjusting the structure of quality ring, no longer gives details here.

According to the technical scheme, compare with prior art, the utility model discloses a wind power generation tower section of thick bamboo has following beneficial effect:

1. the utility model discloses according to the quality of actual measurement result adjustment quality ring and wire rope's effective length, confirm anti vibration damping device's frequency and damping, reduced the lateral vibration and torsional vibration of wind power generation tower through vibration control technique, practice thrift the structure cost of high-power fan.

2. The utility model provides a tower section of thick bamboo sets up anti vibration damping device in inside, prevents the erosion of external environment.

3. The utility model discloses a cooperation of lead screw and screw fixed disk receive and releases the regulation to wire rope's effective length, through the cooperation of storage water tank, water pump, to the inside water and the drainage of watering of exchange water tank, realizes the regulation control to quality ring weight, and degree of automation control is high.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required 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 embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

FIG. 1 is a schematic structural view of a wind power tower provided by the present invention;

FIG. 2 is a front view of a wind power tower provided by the present invention;

fig. 3 is a schematic structural diagram of a mass ring provided by the present invention;

fig. 4 is a cross-sectional view of a mass ring provided by the present invention;

fig. 5 is a schematic structural view of the nut mounting plate provided by the present invention;

fig. 6 is a schematic structural view of the lower support frame provided by the present invention;

fig. 7 is a schematic structural diagram of the upper support frame provided by the present invention.

Wherein:

1-a tower barrel body;

11-a spacing ring; 12-a lower support frame; 121-lower support plate; 122-lower support beam; 13-upper support frame;

131-an upper support plate; 132-an upper support beam;

2-a step motor;

3-a lead screw;

4-a guide rod;

5-a nut mounting plate;

51-a threaded hole; 52-a pilot hole; 53-second ear plate

6-mass ring;

61-rubber ring; 62-adjusting the water tank; 63-a first ear plate; 64-limit convex ring;

7-a steel wire rope;

8, a water storage tank;

81-water conveying pipeline;

9-a water pump;

91-a first water return line; 92-a second water return line.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 7, the embodiment of the present invention discloses a wind power generation tower, which comprises a tower body 1; further comprising: the device comprises a stepping motor 2, a lead screw 3, a guide rod 4, a nut mounting disc 5, a mass ring 6, a steel wire rope 7, a water storage tank 8 and a water pump 9;

a plurality of limiting rings 11 are circumferentially and uniformly fixed on the inner side wall of the tower barrel body 1 on the same horizontal plane; a lower support frame 12 and an upper support frame 13 are horizontally fixed on the inner side wall of the tower barrel body 1, the lower support frame 12 is positioned above the plurality of limiting rings 11, and the upper support frame 13 is positioned above the lower support frame 12;

the stepping motor 2 is fixed in the center of the top surface of the lower support frame 12, and the power output shaft of the stepping motor faces upwards;

the screw rod 3 is vertically arranged; the bottom end of the lead screw 3 is fixedly connected with a power output shaft of the stepping motor 2, and the top end of the lead screw is rotatably connected with the bottom surface of the upper support frame 13;

the number of the guide rods 4 is multiple, and the guide rods are vertically arranged around the screw rod 3 in a surrounding manner; two ends of the guide rod 4 are respectively and fixedly connected with the lower support frame 12 and the upper support frame 13;

the middle part of the nut mounting disc 5 is provided with a threaded hole 51 in threaded connection with the lead screw 3, and is in threaded connection with the lead screw 3, and the nut mounting disc 5 is provided with a guide hole 52 in sliding connection with the guide rod 4;

the mass ring 6 is horizontally arranged below the plurality of limit rings 11; the outer ring of the mass ring 6 is fixedly sleeved with a rubber ring 61, and the inner ring is fixedly provided with an annular adjusting water tank 62;

the number of the steel wire ropes 7 is the same as that of the limiting rings 11; one end of a steel wire rope 7 is fixed with the mass ring 6, the rope body penetrates through the limiting ring 11, and the other end of the steel wire rope is fixed with the edge of the nut mounting disc 5;

the water storage tank 8 is fixed on the bottom surface of the middle part of the lower support frame 12; the bottom of the water storage tank 8 is communicated with the top surface of the regulating water tank 62 through a water conveying pipeline 81; the water pipeline 81 is provided with an electromagnetic valve;

the water pump 9 is fixed on the top surface of the lower support frame 12, the water inlet of the water pump 9 is communicated with the bottom surface of the adjusting water tank 62 through a first water return pipeline 91, and the water outlet is communicated with the upper part of the side wall of the water storage tank 8 through a second water return pipeline 92.

In order to further optimize the technical scheme, the number of the limiting rings 11 and the number of the steel wire ropes 7 are 4.

In order to further optimize the technical scheme, a first lug plate 63 fixedly connected with the steel wire rope 7 is fixed on the top edge of the mass ring 6; and a second lug plate 53 fixedly connected with the steel wire rope 7 is fixed at the edge of the nut mounting plate 5.

In order to further optimize the technical scheme, the top edge and the bottom edge of the mass ring 6 are provided with limiting convex rings 64 which protrude in the radial direction, and the two limiting convex rings 64 form mounting grooves for fixing the rubber ring 61.

In order to further optimize the technical solution, the lower support frame 12 includes a lower support plate 121 arranged horizontally, and a plurality of lower support beams 122 fixed to the edge of the lower support plate 121 and the inner wall of the tower body 1; the bottom ends of the stepping motor 2, the water pump 9 and the guide rod 4 are fixed on the top surface of the lower support plate 121, and the water storage tank 8 is fixed on the bottom surface of the lower support plate 121.

In order to further optimize the technical scheme, the water storage tank 8 is fixed on the bottom surface of the lower support plate 131 through a flange.

In order to further optimize the technical scheme, the upper support frame 13 comprises an upper support plate 131 which is horizontally arranged, and a plurality of upper support beams 132 which are fixed on the edge of the upper support plate 131 and the inner wall of the tower body 1; the lead screw 3 is rotatably connected with the upper supporting plate 131 through a bearing, and the top end of the guide rod 4 is fixedly connected with the upper supporting plate 131.

In order to further optimize the technical scheme, the water storage tank 8 is of a cylindrical structure, and the bottom surface of the water storage tank 8 is flush with the mounting surface of the limiting ring 11.

In order to further optimize the above solution, the number of guide rods 4 is 4.

In order to further optimize the solution described above, the first water return line 91 is located outside the mass ring 6.

The utility model discloses a theory of operation does:

the utility model discloses a principle is according to actual measurement result adjustment mass ring 6's quality and wire rope 7's effective length, confirms anti vibration damping device's frequency and damping, has reduced the lateral vibration and the torsional vibration of wind power generation tower through vibration control technique, practices thrift the structure cost of high-power fan.

The driving stepping motor 2 rotates towards different directions, so that the screw mounting disc 5 can be driven to move up and down along the screw rod 3, and further the steel wire rope 7 is driven to move up and down, and thus the effective length of the steel wire rope 7 between the limiting ring 11 and the quality ring 6 can be changed in length.

The electromagnetic valve is opened to fill the water in the water storage tank 8 into the regulating water tank 62 through the water conveying pipeline 81, and a water level sensor can be added into the regulating water tank 62 in order to further enhance the monitoring of the water filling amount. The water pump 9 is started, so that the water in the adjusting water tank 62 can be pumped back to the water storage tank 8, the water quantity adjustment of the adjusting water tank 62 is completed, and the weight of the mass ring 6 is changed.

The utility model discloses in step motor 2, water pump 9, the solenoid valve that provide can be controlled through external remote circuit, be the conventional structure among the prior art, not the utility model discloses a key, no longer describe herein.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A wind power tower comprises a tower body (1); it is characterized by also comprising: the device comprises a stepping motor (2), a lead screw (3), a guide rod (4), a nut mounting disc (5), a mass ring (6), a steel wire rope (7), a water storage tank (8) and a water pump (9);

a plurality of limiting rings (11) are uniformly fixed on the inner side wall of the tower drum body (1) in the circumferential direction on the same horizontal plane; a lower support frame (12) and an upper support frame (13) are horizontally fixed on the inner side wall of the tower cylinder body (1), the lower support frame (12) is positioned above the limiting rings (11), and the upper support frame (13) is positioned above the lower support frame (12);

the stepping motor (2) is fixed in the center of the top surface of the lower support frame (12), and a power output shaft of the stepping motor faces upwards;

the lead screw (3) is vertically arranged; the bottom end of the lead screw (3) is fixedly connected with a power output shaft of the stepping motor (2), and the top end of the lead screw is rotatably connected with the bottom surface of the upper support frame (13);

the guide rods (4) are multiple in number and are vertically arranged around the screw rod (3) in a surrounding manner; two ends of the guide rod (4) are respectively fixedly connected with the lower support frame (12) and the upper support frame (13);

the middle part of the nut mounting disc (5) is provided with a threaded hole (51) in threaded connection with the lead screw (3), the nut mounting disc is in threaded connection with the lead screw (3), and a guide hole (52) in sliding connection with the guide rod (4) is formed in the nut mounting disc (5);

the mass ring (6) is horizontally arranged below the limiting rings (11); the outer ring of the mass ring (6) is fixedly sleeved with a rubber ring (61), and the inner ring is fixedly provided with an annular adjusting water tank (62);

the number of the steel wire ropes (7) is the same as that of the limiting rings (11); one end of the steel wire rope (7) is fixed with the mass ring (6), the rope body penetrates through the limiting ring (11), and the other end of the steel wire rope is fixed with the edge of the nut mounting disc (5);

the water storage tank (8) is fixed on the bottom surface of the middle part of the lower support frame (12); the bottom of the water storage tank (8) is communicated with the top surface of the regulating water tank (62) through a water conveying pipeline (81); the water conveying pipeline (81) is provided with an electromagnetic valve;

the water pump (9) is fixed on the top surface of the lower support frame (12), a water inlet of the water pump (9) is communicated with the bottom surface of the adjusting water tank (62) through a first water return pipeline (91), and a water outlet is communicated with the upper portion of the side wall of the water storage tank (8) through a second water return pipeline (92).

2. The wind power generation tower as claimed in claim 1, wherein the number of the limiting rings (11) and the number of the steel cables (7) are 4.

3. A wind power tower according to claim 1, wherein a first ear plate (63) for fixed connection with the wire rope (7) is fixed to the top edge of the mass ring (6); and a second lug plate (53) fixedly connected with the steel wire rope (7) is fixed at the edge of the nut mounting disc (5).

4. The wind power tower according to claim 1, wherein the top and bottom edges of the mass ring (6) have radially protruding limit collars (64), and two limit collars (64) form a mounting groove for fixing the rubber ring (61).

5. A wind power tower according to claim 1, wherein the lower support frame (12) comprises a lower support plate (121) arranged horizontally, and a plurality of lower support beams (122) fixed to the edge of the lower support plate (121) and the inner wall of the tower body (1); the bottom ends of the stepping motor (2), the water pump (9) and the guide rod (4) are fixed to the top surface of the lower supporting plate (121), and the water storage tank (8) is fixed to the bottom surface of the lower supporting plate (121).

6. Wind power generation tower according to claim 5, characterised in that said water storage tank (8) is fixed to the bottom surface of said lower support plate (121) by means of a flange.

7. The wind power tower of claim 1, wherein the upper support frame (13) comprises an upper support plate (131) arranged horizontally, and a plurality of upper support beams (132) fixed to the edge of the upper support plate (131) and the inner wall of the tower body (1); lead screw (3) through the bearing with go up backup pad (131) and rotate and be connected, the top of guide bar (4) with go up backup pad (131) fixed connection.

8. The wind power tower as claimed in claim 1, wherein the water storage tank (8) is of a cylindrical structure, and the bottom surface of the water storage tank (8) is flush with the mounting surface of the limiting ring (11).

9. A wind power tower according to claim 1, wherein the number of guide bars (4) is 4.

10. A wind power tower according to claim 1, wherein the first water return line (91) is located outside the mass ring (6).