CN216741815U

CN216741815U - Wind driven generator speed limiting safety mechanism

Info

Publication number: CN216741815U
Application number: CN202123233765.4U
Authority: CN
Inventors: 黄小红
Original assignee: Individual
Current assignee: Cgn Emin Wind Power Co ltd
Priority date: 2021-12-20
Filing date: 2021-12-20
Publication date: 2022-06-14
Anticipated expiration: 2031-12-20

Abstract

The utility model discloses a aerogenerator speed limit safety mechanism, including circular cover and wind wheel transmission shaft, the outer wall through-hole bearing of wind wheel transmission shaft rotates with the axle center department of circular cover to alternate and is connected, and circular cover bottom is provided with supporting mechanism, and the outer wall of wind wheel transmission shaft just is located the fixed cover of inner chamber position department of circular cover and is equipped with the connecting axle sleeve, and the outer wall of connecting axle sleeve is a plurality of damping boards of interval fixedly connected with such as annular array, and the bottom packing of circular cover inner chamber has damping liquid, and the top of circular cover is provided with retrieves the mechanism. The utility model discloses utilize and install circular cover additional in the transmission shaft outside, the setting of connecting axle sleeve, damping plate and damping liquid between circular cover of deuterogamying and the transmission shaft can utilize the transmission shaft to drive the damping plate and rotate when the transmission shaft is fast excessively for the continuous and damping liquid contact of a plurality of damping plates, thereby utilize the resistance between damping plate and the damping liquid to come to slow down the transmission shaft, need not regularly carry out the dismouting change, improved the convenience of using.

Description

Wind driven generator speed limiting safety mechanism

Technical Field

The utility model relates to a aerogenerator field, in particular to aerogenerator speed limit safety mechanism.

Background

At present, in a wind wheel generator, wind power is generally utilized to blow a wind wheel, wind energy is converted into mechanical energy of rotation of the wind wheel, the wind wheel drives a transmission shaft connected with the wind wheel to rotate while rotating, the transmission shaft drives an output shaft of a generator to rotate while rotating, and therefore the mechanical energy of the wind wheel is converted into electric energy.

At present, when wind power is overlarge, the rotating speed of a wind wheel can be caused to be too high, a transmission shaft is easily caused to drive the rotating efficiency of an output shaft of a generator to be too high, and the generator is easily caused to be damaged, so that a speed-limiting safety mechanism is arranged in a common wind driven generator, the currently used speed-limiting safety device generally detects the wind power through a wind sensor on a shell of the wind driven generator, when the overlarge wind power is detected, a driving mechanism in a control shell drives a brake pad to be in contact with the outer wall of the transmission shaft, the friction resistance when the transmission shaft rotates is increased, so that the speed of the transmission shaft is reduced, the speed-limiting protection of the wind driven generator is achieved, the brake pad is easy to wear after being used for a long time, the frequent replacement is caused, and the complexity of use is increased.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a aerogenerator speed limit safety mechanism to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a aerogenerator speed limit safety mechanism, includes circular cover and wind wheel transmission shaft, the outer wall through-hole bearing of wind wheel transmission shaft rotates with the axle center department of circular cover to alternate and is connected, circular cover bottom is provided with supporting mechanism, the outer wall of wind wheel transmission shaft just is located the fixed cover of the inner chamber position department of circular cover and is equipped with the connecting axle sleeve, the outer wall of connecting axle sleeve is a plurality of damping plates of equidistant fixedly connected with of annular array, the bottom packing of circular cover inner chamber has damping liquid, the top of circular cover is provided with retrieves the mechanism.

Preferably, the middle part of the outer wall of the connecting shaft sleeve is movably inserted and connected with a fastening bolt, and one end of the fastening bolt penetrates through the connecting shaft sleeve and the wind wheel transmission shaft respectively and is connected with a fastening nut in a threaded insertion manner.

Preferably, the supporting mechanism comprises a fixed base, and the bottom of the circular cover is fixedly welded with an arc-shaped groove formed in the top end of the fixed base.

Preferably, the top fixedly connected with batch oil tank of circular cover outer wall, just the bottom of batch oil tank and unable adjustment base's top fixed connection, the fixed interlude in bottom of batch oil tank one side is connected with out oil pipe, the inner wall of circular cover is run through to the one end that goes out oil pipe, just the inner chamber that goes out oil pipe is provided with the solenoid valve.

Preferably, retrieve the mechanism and include the oil pump, oil pump fixed connection is in the top of circular cover, the oil-out of oil pump passes through the fixed intercommunication in one side of pipe and batch oil tank, the fixed intercommunication of oil inlet of oil pump has coupling hose, coupling hose's bottom runs through the inner wall of circular cover and extends to the bottom of inner chamber.

Preferably, the bottom of unable adjustment base both sides is equal two mountings of symmetry fixedly connected with, four fixing hole has all been seted up at the middle part of mounting.

Preferably, the top end of the outer wall of the oil storage tank is fixedly and alternately connected with an oil filling nozzle, and a sealing nozzle cover is sleeved on the top thread of the outer wall of the oil filling nozzle.

The utility model discloses a technological effect and advantage:

(1) the utility model discloses utilize and install circular cover additional outside the transmission shaft, the setting of connecting axle sleeve, damping plate and damping liquid between circular cover and the transmission shaft is deuterogamied, can utilize the transmission shaft to drive the damping plate and rotate when the transmission shaft is too fast, make a plurality of damping plates contact with damping liquid constantly, thereby utilize the resistance between damping plate and the damping liquid to decelerate the transmission shaft, need not carry out the dismouting change regularly, improved the convenience of using;

(2) the utility model discloses utilize the setting of batch oil tank, oil pump, play oil pipe and solenoid valve, can pack damping fluid or take the damping fluid in the circular cover out to circular cover intussuseption according to the wind-force size to the convenience of use has further been improved.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic front sectional view of the present invention.

Fig. 3 is a schematic view of a part of an enlarged structure of fig. 2 according to the present invention.

In the figure: 1. a circular cover; 2. a fixed base; 3. a wind wheel transmission shaft; 4. connecting the shaft sleeve; 5. a damping plate; 6. fastening a bolt; 7. fastening a nut; 8. an oil storage tank; 9. an oil outlet pipe; 10. a fuel filler nozzle; 11. Sealing the nozzle cover; 12. an oil pump; 13. a connecting hose; 14. an electromagnetic valve; 15. a fixing member; 16. and fixing the through hole.

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.

The utility model provides a wind driven generator speed-limiting safety mechanism as shown in figures 1-3, which comprises a circular cover 1 and a wind wheel transmission shaft 3, wherein the outer wall through hole bearing of the wind wheel transmission shaft 3 is rotatably and alternately connected with the axle center of the circular cover 1, the bottom of the circular cover 1 is provided with a supporting mechanism, the outer wall of the wind wheel transmission shaft 3 and the inner cavity position of the circular cover 1 are fixedly sleeved with a connecting shaft sleeve 4, the middle part of the outer wall of the connecting shaft sleeve 4 is movably and alternately connected with a fastening bolt 6, one end of the fastening bolt 6 respectively penetrates through the connecting shaft sleeve 4 and the wind wheel transmission shaft 3 and is threadedly and alternately connected with a fastening nut 7, the connecting shaft sleeve 4 is aligned with the round hole position of the outer wall of the wind wheel transmission shaft 3, then the fastening bolt 6 is passed through and the fastening nut 7 is screwed, the fixation between the connecting shaft sleeve 4 and the wind wheel transmission shaft 3 is realized, the outer wall of the connecting shaft sleeve 4 is in the shape of an annular array and is fixedly connected with a plurality of damping plates 5 at equal intervals, the damping plate 5 can be fan-shaped, the contact area is large, so that the resistance is large, the bottom of the inner cavity of the circular cover 1 is filled with damping liquid, the damping liquid can be oil bodies such as hydraulic oil or lubricating oil which are not easy to freeze and ignite, the density is large, the safety is high, the blocking force on the damping plate 5 is large, and the top end of the circular cover 1 is provided with a recovery mechanism;

the top of the outer wall of the circular cover 1 is fixedly connected with an oil storage tank 8, in an initial state, damping liquid is filled in the oil storage tank 8, the bottom end of the oil storage tank 8 is fixedly connected with the top end of the fixed base 2, the bottom of one side of the oil storage tank 8 is fixedly and alternately connected with an oil outlet pipe 9, one end of the oil outlet pipe 9 penetrates through the inner wall of the circular cover 1, an electromagnetic valve 14 is arranged in an inner cavity of the oil outlet pipe 9, the electromagnetic valve 14 is used for controlling the opening and closing of the oil outlet pipe 9, an operator can conveniently control the automatic opening and closing of the oil outlet pipe 9 through an external controller or a PLC (programmable logic controller), the top end of the outer wall of the oil storage tank 8 is fixedly and alternately connected with an oil filling nozzle 10, and a sealing nozzle cover 11 is sleeved on the top thread of the outer wall of the oil filling nozzle 10, so that the damping liquid can be conveniently added into the oil storage tank 8 and the oil can be sealed;

the recycling mechanism comprises an oil pump 12, the oil pump 12 is fixedly connected to the top end of the circular cover 1, an oil outlet of the oil pump 12 is fixedly communicated with one side of the oil storage tank 8 through a conduit, an oil inlet of the oil pump 12 is fixedly communicated with a connecting hose 13, the bottom end of the connecting hose 13 penetrates through the inner wall of the circular cover 1 and extends to the bottom of the inner cavity, when the wind wheel rotates normally, damping liquid in the circular cover 1 can be pumped into the oil storage tank 8 for storage through the connecting hose 13 by using the oil pump 12, the blocking force on the wind wheel transmission shaft 3 is reduced, when all damping liquid in the oil storage tank 8 enters the circular cover 1, the liquid level is not higher than the bottom end of the connection part of the circular cover 1 and the wind wheel transmission shaft 3, and leakage caused by the fact that the rotating position is not in place;

supporting mechanism includes unable adjustment base 2, and the fixed welding of arc fluting that some were seted up on the bottom of circular cover 1 and 2 tops of unable adjustment base, two mountings 15 of the equal symmetry fixedly connected with in bottom of 2 both sides of unable adjustment base, fixing hole 16 has all been seted up at the middle part of four mountings 15, plays a support fixed action to circular cover 1, and the circular cover 1 of being convenient for keeps relatively fixed with wind turbine casing internal portion.

The utility model discloses the theory of operation: when the too big rotational speed that leads to the wind wheel to drive wind wheel transmission shaft 3 of outside wind-force, solenoid valve 14 opens, make the damping fluid in the oil storage tank 8 enter into circular cover 1 inner chamber from play oil pipe 9, fill up the bottom of circular cover 1 inner chamber, a plurality of damping plates 5 rotate along with wind wheel transmission shaft 3 through connecting axle sleeve 4, when a plurality of damping plates 5 rotate bottom and damping fluid contact from circular cover 1 inner chamber top in proper order, the damping fluid can play a effect that blocks to damping plate 5, increase wind wheel transmission shaft 3 pivoted resistance, thereby play a deceleration to wind wheel transmission shaft 3's rotation, play the purpose of a speed limit protection between wind wheel in the aerogenerator and the generator.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The utility model discloses the standard parts that use all can purchase from the market, and dysmorphism piece all can be customized according to the record of the description with the drawing.

Although embodiments of the present invention have been shown and described, it will be appreciated by 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, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a aerogenerator speed limit safety mechanism, includes circular cover (1) and wind wheel transmission shaft (3), its characterized in that, the outer wall through-hole bearing of wind wheel transmission shaft (3) rotates with the axle center department of circular cover (1) and alternates and is connected, circular cover (1) bottom is provided with supporting mechanism, the outer wall of wind wheel transmission shaft (3) and the inner chamber position department fixed cover that is located circular cover (1) are equipped with connecting axle sleeve (4), the outer wall of connecting axle sleeve (4) is a plurality of damping boards (5) of equidistant fixedly connected with of annular array, the bottom packing of circular cover (1) inner chamber has damping liquid, the top of circular cover (1) is provided with retrieves the mechanism.

2. The wind driven generator speed-limiting safety mechanism according to claim 1, wherein a fastening bolt (6) is movably inserted and connected in the middle of the outer wall of the connecting shaft sleeve (4), and one end of the fastening bolt (6) penetrates through the connecting shaft sleeve (4) and the wind wheel transmission shaft (3) respectively and is connected with a fastening nut (7) in a threaded insertion manner.

3. The wind driven generator speed-limiting safety mechanism according to claim 1, characterized in that the supporting mechanism comprises a fixed base (2), and the bottom of the circular cover (1) is fixedly welded with an arc-shaped slot formed at the top end of the fixed base (2).

4. The wind driven generator speed-limiting safety mechanism is characterized in that an oil storage tank (8) is fixedly connected to the top of the outer wall of the circular cover (1), the bottom end of the oil storage tank (8) is fixedly connected with the top end of the fixing base (2), an oil outlet pipe (9) is fixedly and alternately connected to the bottom of one side of the oil storage tank (8), one end of the oil outlet pipe (9) penetrates through the inner wall of the circular cover (1), and an electromagnetic valve (14) is arranged in an inner cavity of the oil outlet pipe (9).

5. The wind driven generator speed-limiting safety mechanism is characterized in that the recovery mechanism comprises an oil pump (12), the oil pump (12) is fixedly connected to the top end of the circular cover (1), an oil outlet of the oil pump (12) is fixedly communicated with one side of the oil storage tank (8) through a conduit, an oil inlet of the oil pump (12) is fixedly communicated with a connecting hose (13), and the bottom end of the connecting hose (13) penetrates through the inner wall of the circular cover (1) and extends to the bottom of the inner cavity.

6. The wind driven generator speed-limiting safety mechanism according to claim 3, wherein two fixing pieces (15) are symmetrically and fixedly connected to the bottoms of the two sides of the fixing base (2), and fixing through holes (16) are formed in the middle parts of the four fixing pieces (15).

7. The wind driven generator speed-limiting safety mechanism is characterized in that an oil filling nozzle (10) is fixedly inserted and connected to the top end of the outer wall of the oil storage tank (8), and a sealing nozzle cover (11) is sleeved on the top of the outer wall of the oil filling nozzle (10) in a threaded mode.