CN207830037U - A kind of deceleration device for wind-driven generator - Google Patents

Abstract

The utility model discloses a kind of deceleration devices for wind-driven generator,Including cabin,Rolling bearing and bearing base,The cabin insertion is arranged at the top of rolling bearing,And it is fixed by screws with rolling bearing,The embedding bottom for being set on rolling bearing of the bearing base,This kind is used for the deceleration device of wind-driven generator,Slowing effect can not only be generated to generator,And it avoids due to manual operation not in time,The damage caused by generator,This kind of deceleration device,Use intelligent equipment,Y355 motor are controlled by PLC controller effectively to control it,And centrifugal force is utilized in the speed limit turntable being arranged,It can slow down to it at crucial moment,Avoid the excessive damage caused by it of wind-force,Brake ribbon also uses high wear-resistant rubber synthetic material,Increase its wearability,Its usage time can be extended,It will be with a wide range of applications in future.

Description

A deceleration device for a wind power generator

technical field

The utility model relates to the technical field of deceleration devices, in particular to a deceleration device for wind power generators.

Background technique

When the wind turbine is in working condition, as the wind speed increases, the blades will rotate faster and faster. When the speed of the blades is too high, it will easily cause the windward side of the blades to be unstable, and the vibration of the fuselage and excessive centrifugal force will cause the blades to rotate faster and faster. break, causing a safety hazard. Moreover, when the shaft speed of the wind turbine generator is too high, the electronic components will be easily burnt out if the high voltage is generated, resulting in damage to the wind turbine. Therefore, effective deceleration and braking measures should be taken to ensure that the wind turbine can still work normally under strong wind conditions and improve the utilization rate of wind energy. .

The existing mechanical brake device manually controls the brake to press the brake disc when the wind speed is high, and relies on the friction between the brake and the brake disc to achieve the purpose of braking, which increases the workload of the workers and sometimes Untimely deceleration will cause damage to the wind turbine and increase its maintenance cost.

Therefore, how to design a speed reduction device for wind power generators has become a problem we need to solve at present.

Utility model content

The purpose of this utility model is to provide a speed reduction device for a wind power generator to solve the problems raised in the above-mentioned background technology.

In order to achieve the above purpose, the utility model provides the following technical solutions: a speed reduction device for wind power generators, including a nacelle, a rotating bearing and a bearing base. fixedly connected, the bearing base is nested at the bottom of the rotating bearing, the inner side of the nacelle is provided with a rotating shaft, and the rotating shaft is embedded in the nacelle, and the inner side of the nacelle is provided with a concave opening bracket, And the concave mouth bracket is embedded in the bottom of the nacelle, and is fixedly connected with the nacelle by screws, the side of the rotating shaft is provided with a speed-limiting turntable, and the speed-limiting turntable is nested in the turning shaft, and is connected with The rotating shaft is welded, the side of the speed-limiting turntable is provided with a chute, and the chute is embedded in the speed-limiting turntable, the side of the rotating shaft is provided with a brake band, and the braking band is wrapped around the rotating shaft , and is adapted to the rotating shaft, the side of the brake band is provided with a return spring, and the return spring and the brake band are fixedly connected by screws, the side of the return spring is provided with a slider, and the slider is embedded The sleeve is set in the return spring, and is fixedly connected with the return spring by screws. The top of the speed-limiting turntable is provided with a cover plate, and the cover is adapted to the speed-limiting turntable, and is fixedly connected with the speed-limiting turntable by screws. , the side of the rotating shaft is provided with a WTK-10 rotational speed sensor, and the WTK-10 rotational speed sensor and the rotating shaft are fixedly connected by screws, the inner side of the bearing base is provided with a Y355 motor, and the Y355 motor is connected to the bearing base Fixed connection by screws, the side of the bearing base is provided with a power interface, and the power interface is embedded in the bearing base, the inner wall of the cabin is provided with a PLC controller, and the PLC controller is embedded in the cabin , and electrically connected with the WTK-10 speed sensor, Y355 motor, and power interface, the first pin of the PLC controller is coupled with the Y355 motor, and the third pin of the PLC controller is coupled with the WTK-10 speed sensor , the second and fourth pins of the PLC controller are both connected to the power interface.

Further, the brake band is made of high wear-resistant rubber synthetic material.

Further, the top of the bearing base is provided with a fixing piece, and the fixing piece and the bearing base are glued together.

Further, anti-slip lines are engraved on the side of the rotating shaft.

Further, a baffle is provided on the inner side of the speed-limiting turntable, and the baffle is embedded in the speed-limiting turntable.

Compared with the prior art, the beneficial effect of the utility model is that the deceleration device for wind power generators can not only produce a deceleration effect on the generator, but also avoid damage to the generator due to untimely manual operation. , this kind of deceleration device adopts intelligent equipment, and the PLC controller controls the Y355 motor to effectively control it, and the set speed limit turntable uses centrifugal force, which can decelerate it at critical moments to avoid excessive wind damage. The damage caused by it, the brake band is also made of high wear-resistant rubber synthetic material, which increases its wear resistance, can prolong its service time, and has a wide application prospect in the future.

Description of drawings

Fig. 1 is the overall structural representation of the utility model;

Fig. 2 is a partial structural schematic diagram of the speed limiting turntable of the present invention;

Fig. 3 is the circuit diagram of the present utility model;

In the figure: 1-machine room; 2-rotating shaft; 3-anti-skid pattern; 4-concave bracket; 5-rotating bearing; 6-PLC controller; 7-bearing base; 8-WTK-10 speed sensor; 9 - speed limit turntable; 10 - brake band; 11 - chute; 12 - return spring; 13 - fixed piece; 14 - baffle; 15 - cover plate; 16 - slider; 17 - Y355 motor;

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Figures 1-3, the utility model provides a technical solution: a speed reduction device for wind power generators, including a nacelle 1, a rotating bearing 5 and a bearing base 7, the nacelle 1 is embedded in the rotating bearing 5 The top is fixedly connected with the rotating bearing 5 by screws, the bearing base 7 is nested at the bottom of the rotating bearing 5, the inner side of the nacelle 1 is provided with a rotating shaft 2, and the rotating shaft 2 is embedded in the nacelle 4 Among them, the inner side of the nacelle 1 is provided with a notch bracket 4, and the notch bracket 4 is embedded in the bottom of the nacelle 1, and is fixedly connected with the nacelle 1 by screws, and the side of the rotating shaft 2 A speed-limiting turntable 9 is provided, and the speed-limiting turntable 9 is nested in the rotating shaft 2 and welded to the rotating shaft 2. The side of the speed-limiting turntable 9 is provided with a chute 11, and the chute 11 is embedded Set in the speed-limiting turntable 9, the side of the rotating shaft 2 is provided with a brake band 10, and the braking band 10 is wrapped around the rotating shaft 2 and adapted to the rotating shaft 2, the side of the braking band 10 A return spring 12 is provided, and the return spring 12 is fixedly connected with the brake band 10 by screws, a slide block 16 is provided on the side of the return spring 12, and the slide block 16 is nested in the return spring 12, and It is fixedly connected with the return spring 12 by screws, and the top of the speed-limiting dial 9 is provided with a cover plate 15, and the cover plate 15 is adapted to the speed-limiting dial 9, and is fixedly connected with the speed-limiting dial 9 by screws. The side of the rotating shaft 2 is provided with a WTK-10 rotational speed sensor 8, and the WTK-10 rotational speed sensor 8 is fixedly connected with the rotating shaft 2 by screws, the inner side of the bearing base 7 is provided with a Y355 motor 17, and the Y355 The motor 17 and the bearing base 7 are fixedly connected by screws, the side of the bearing base 7 is provided with a power interface 18, and the power interface 18 is embedded in the bearing base 7, and the inner wall of the cabin 1 is provided with a PLC controller 6 , and the PLC controller 6 is embedded in the engine room 1, and is electrically connected to the WTK-10 speed sensor 8, the Y355 motor 17, and the power interface 18, and the first pin of the PLC controller 6 is connected to the Y355 motor 17 Coupling, the third pin of the PLC controller 6 is coupled to the WTK-10 rotational speed sensor 13, and the second and fourth pins of the PLC controller 6 are connected to the power interface 18.

More specifically, the brake band 10 is made of high wear-resistant rubber synthetic material, and the wear resistance of the brake band 10 can be enhanced by setting the material.

More specifically, the top of the bearing base 7 is provided with a fixing piece 13 , and the fixing piece 13 is glued to the bearing base 7 by glue, and the rotating bearing 5 can be fixed by the fixing piece 13 provided.

More specifically, the side of the rotating shaft 2 is engraved with anti-skid lines 3 , and the provided anti-slip lines 3 are beneficial to enhance the braking effect of the brake band 10 .

More specifically, a baffle 14 is provided on the inner side of the speed-limiting turntable 9 , and the baffle 14 is embedded in the speed-limiting turntable 9 , and the slider 16 can be supported by the provided baffle 14 .

Embodiment: When the wind speed is too high, the blades will accelerate the speed of rotation, and then drive the rotating shaft 2 to rotate rapidly, and the WTK-10 rotational speed sensor 8 installed on the rotating shaft 2 will monitor it and transmit the data to the PLC for control 6, when the transmitted data is greater than the set data, the PLC controller 6 is powered on, and controls the Y355 motor 17 to drive the rotating bearing 5 to rotate through the synchronous belt until the direction of the small wind speed is found. If the effect of the rotating bearing 5 on deceleration When it is not obvious, the speed-limiting turntable 9 nested on the rotating shaft 2 will also decelerate it, and the set slider 16 will pull the brake band 10 through the return spring 12 under the action of centrifugal force to make the brake The belt 10 is in contact with the rotating shaft 2 to generate frictional force to brake it. When the wind force decreases, due to the elastic force of the return spring 12, the brake belt 10 will be reset, and the baffle plate 14 will play a certain role on the slider 16. The supporting function prevents it from generating frictional force with the rotating shaft 2 when the wind speed is small, so as to ensure the normal operation of the device.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes and modifications can be made to these embodiments without departing from the principle and spirit of the present invention , replacements and modifications, the scope of the present utility model is defined by the appended claims and their equivalents.

Claims (5)

1. a kind of deceleration device for wind-driven generator, including cabin（1）, rolling bearing（5）And bearing base（7）, special Sign is：The cabin（1）It is embedding to be set on rolling bearing（5）Top, and and rolling bearing（5）The company of being screwed It connects, the bearing base（7）It is embedding to be set on rolling bearing（5）Bottom, the cabin（1）Inside be equipped with rotation axis（2）, And the rotation axis（2）It is embedded to be arranged in cabin（1）In, the cabin（1）Inside be equipped with spill mouth bracket（4）, and it is described Spill mouth bracket（4）It is embedded to be arranged in cabin（1）Bottom, and and cabin（1）It is fixed by screws, the rotation axis （2）Side be equipped with speed limit turntable（9）, and the speed limit turntable（9）It is embedding to be set on rotation axis（2）In, and and rotation axis（2） Welding, the speed limit turntable（9）Side be equipped with sliding slot（11）, and the sliding slot（11）It is embedded to be arranged in speed limit turntable（9）In, The rotation axis（2）Side be equipped with brake ribbon（10）, and the brake ribbon（10）It is wrapped in rotation axis（2）Around, and with turn Moving axis（2）It is adapted, the brake ribbon（10）Side be equipped with resetting spring（12）, and the resetting spring（12）With brake ribbon （10）It is fixed by screws, the resetting spring（12）Side be equipped with sliding block（16）, and the sliding block（16）Nesting is set It sets in resetting spring（12）In, and and resetting spring（12）It is fixed by screws, the speed limit turntable（9）Top be equipped with Cover board（15）, and the cover board（15）With speed limit turntable（9）Be adapted, and with speed limit turntable（9）It is fixed by screws, institute State rotation axis（2）Side be equipped with WTK-10 speed probes（8）, and the WTK-10 speed probes（8）With rotation axis（2） It is fixed by screws, the bearing base（7）Inside be equipped with Y355 motor（17）, and the Y355 motor（17） With bearing base（7）It is fixed by screws, the bearing base（7）Side be equipped with power interface（18）, and the electricity Source interface（18）It is embedded to be arranged in bearing base（7）In, the cabin（1）Inner wall be equipped with PLC controller（6）, and the PLC Controller（6）It is embedded to be arranged in cabin（1）In, and with WTK-10 speed probes（8）, Y355 motor（17）, power interface （18）It is electrically connected, the PLC controller（6）The first pin and Y355 motor（17）Coupling, the PLC controller（6） Third pin and WTK-10 speed probes（8）Coupling, the PLC controller（6）The second, the 4th pin connect with power supply Mouthful（18）It is connected.

2. a kind of deceleration device for wind-driven generator according to claim 1, it is characterised in that：The brake ribbon （10）Using high wear-resistant rubber synthetic material.

3. a kind of deceleration device for wind-driven generator according to claim 1, it is characterised in that：The bearing base （7）Top be equipped with fixinig plate（13）, and the fixinig plate（13）With bearing base（7）Pass through viscose gluing.

4. a kind of deceleration device for wind-driven generator according to claim 1, it is characterised in that：The rotation axis （2）Side be carved with anti-skid chequer（3）.

5. a kind of deceleration device for wind-driven generator according to claim 1, it is characterised in that：The speed limit turntable （9）Inside be equipped with baffle（14）, and the baffle（14）It is embedded to be arranged in speed limit turntable（9）In.