Wind power generation stopping device

Abstract

The utility model relates to the technical field of wind power generation, and discloses a wind power generation outage device which comprises a rotating shaft, one end of the rotating shaft is fixedly connected with an installation cylinder, a plurality of sets of first installation grooves are formed in the installation cylinder, second installation grooves are formed in the installation cylinder, first bevel gears are arranged in the first installation grooves, and second bevel gears are arranged in the second installation grooves. A first bevel gear is arranged in the first mounting groove, a blade base is fixedly connected to one side of the first bevel gear, the outer surface of the blade base is rotationally connected with the interior of the mounting cylinder, a second bevel gear is arranged in the second mounting groove, and the outer surface of the first bevel gear is meshed with the outer surface of the second bevel gear. When the wind driven generator needs to be stopped and braked, the thrust between the blades and the wind power can be reduced by adjusting the angles of the blades, at the moment, the rotating shaft can be braked more efficiently and conveniently, and the risk that the braking device is damaged is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to wind power generation technical field especially, relate to a wind power generation shutdown device. BACKGROUND

[0002] Wind turbine is the mechanical work that will wind energy conversion, mechanical work drives rotor rotation, ultimately output ac power equipment, wind turbine working principle is relatively simple, the wind wheel rotates under the action of wind force, it changes wind's kinetic energy into the mechanical energy of wind wheel axle, generator rotates under the driving of wind wheel axle and generates electricity. Broadly speaking, wind energy is also solar energy, so it can also be said that wind turbine is a kind of solar heat source, atmospheric working medium heat utilization generator, during overhaul and maintenance or when encountering natural disasters, stop through brake device.

[0003] Through the retrieval, the prior art Chinese patent publication No. CN217055469U provides a kind of wind power generation brake device, including: first shell, second shell and rotating shaft, the rotating shaft sliding sleeve is connected in second shell and first shell, and fixed plate and connecting piece are welded on rotating shaft, the rear end surface of second shell is fixed with water tank, the top end surface of water tank is installed with first water pump, first water pump is installed with first connecting pipe, and the end of first connecting pipe deviating from first water pump is embedded and fixed in the bottom end surface of second shell, the top end surface of water tank is embedded and fixed with liquid inlet pipe, and liquid inlet pipe is in fluid communication with water tank, the inner wall top end surface and bottom end surface of first shell are welded with fixed piece, the side end surface of first shell is installed with screw rod, and the screw rod is connected with partition by screw thread, the inner wall of partition is welded with connecting rod.The device satisfies power generation brake, facilitates later operation, can quickly assist braking, and is convenient to use.

[0004] But in prior art, wind turbine is usually used brake disc to contact rotating shaft to carry out brake operation when stopping, but the angle of blade cannot be adjusted when braking, so that when braking, its rotating shaft will still be driven by blade larger driving force, resulting in poor stop effect, a scheme is proposed to solve the problems in the above background. UTILITY MODEL CONTENTS

[0005] In order to make up for the above shortcomings, the utility model provides a kind of wind power generation shutdown device, to improve the wind turbine when stopping is usually used brake disc to contact rotating shaft to carry out brake operation, but the angle of blade cannot be adjusted when braking, so that when braking, its rotating shaft will still be driven by blade larger driving force, resulting in poor stop effect.

[0006] In order to achieve the above object, the utility model discloses the following technical scheme: including pivot, one end of pivot is fixedly connected with installation cylinder, the inside of installation cylinder is equipped with multiple group no. 1 installation groove, the inside of installation cylinder is equipped with no. 2 installation groove, the inside of no. 1 installation groove is provided with no. 1 bevel gear, one side of no. 1 bevel gear is fixedly connected with vane base, the outer surface of vane base is rotatably connected with the inside of installation cylinder, the inside of no. 2 installation groove is provided with no. 2 bevel gear, the outer surface of no. 1 bevel gear is engaged with the outer surface of no. 2 bevel gear, one side of installation cylinder is fixedly connected with no. 1 fixed frame, one end of no. 1 fixed frame is fixedly connected with no. 1 motor, the output of no. 1 motor is fixedly connected with limit disc, one side of no. 2 bevel gear is fixedly connected with one side of limit disc through the side of installation cylinder, the both sides of the one end of no. 1 fixed frame are fixedly connected with no. 1 reinforcing rib.

[0007] Further description of the above technical scheme: when the wind power generation device needs to be stopped, the no. 1 motor can be started to drive the limit disc to rotate, the rotating limit disc drives the no. 2 bevel gear to rotate, the rotating no. 2 bevel gear drives the surrounding no. 1 bevel gear to rotate to drive the vane base to rotate, the rotating vane base controls the vane fixed above to rotate, adjusts the angle of the vane, and reduces the effect of the vane being pushed by the wind.

[0008] Preferably, the both sides of the one side of the installation cylinder are fixedly connected with the no. 2 fixed frame, and the middle of the one side of the two no. 2 fixed frames is fixedly connected with the movable rod.

[0009] Further description of the above technical scheme: the movable rod can move on the side of the no. 2 fixed frame to drive the limit plate to move.

[0010] Preferably, the one end of the two movable rods is fixedly connected with the limit plate, and the inside of the two movable rods is threadedly connected with the lead screw.

[0011] Further description of the above technical scheme: the limit plate can limit and fix the limit disc after being pressed against the limit disc to limit the no. 2 bevel gear.

[0012] Preferably, the one end of the two lead screws is rotatably connected with the one end of the two no. 2 fixed frames, the one end of the two lead screws is fixedly connected with the no. 3 bevel gear, and the one side of the installation cylinder is fixedly connected with the installation rod.

[0013] Further description of the above technical scheme: the no. 3 bevel gear can drive the lead screw to rotate after rotating to control the movement of the movable rod.

[0014] Preferably, the outer surfaces of the two third bevel gears are engaged with fourth bevel gears, the two fourth bevel gears are fixedly connected with a connecting rod, and one end of the mounting rod is fixedly connected with a second motor.

[0015] As a further description of the above technical scheme, the fourth bevel gear can rotate when the connecting rod rotates, thereby driving the third bevel gear to rotate.

[0016] Preferably, one end of the two second fixed frames is fixedly connected with a third fixed frame, one end of the two third fixed frames is rotatably connected with two ends of the connecting rod, and one end of the two third fixed frames is fixedly connected with a second reinforcing rib.

[0017] As a further description of the above technical scheme, the third fixed frame can be used for mounting the connecting rod, and the second reinforcing rib can increase the structural strength of the device.

[0018] Preferably, the output end of the second motor and the middle part of the connecting rod are fixedly connected with synchronous wheels, and the two synchronous wheels are drivingly connected with a transmission chain.

[0019] As a further description of the above technical scheme, the transmission chain can connect the two synchronous wheels, and can drive the other synchronous wheel to rotate when one of the synchronous wheels rotates.

[0020] Preferably, one end of the two second fixed frames is fixedly connected with a third reinforcing rib, and one side of the mounting cylinder is fixedly connected with a protective shell.

[0021] As a further description of the above technical scheme, the protective shell can protect the components such as the first motor and the second motor.

[0022] Compared with the prior art, the advantages and positive effects of the utility model lie in,

[0023] 1、in the utility model, when the wind power generation device needs to be stopped, the first motor is started to drive the limiting disc to rotate, the rotating limiting disc drives the second bevel gear to rotate, the rotating second bevel gear drives the surrounding first bevel gear to rotate to drive the blade base to rotate, the rotating blade base controls the blades fixed above to rotate, the angle of the blades is adjusted, the effect of the wind pushing the blades is reduced, when the wind turbine needs to be stopped, the angle of the blades is adjusted to reduce the thrust between the blades and the wind, and when the rotating shaft is braked, the process is more efficient and convenient, and the risk of damaging the brake device is reduced.

[0024] 2. The utility model discloses a when not needing to adjust the blade base, can start no. 2 motor, and no. 2 motor can drive one of the synchronous wheel rotation, with drive transmission chain to move, and the transmission chain of its movement will drive another synchronous wheel rotation and drive connecting rod rotation, and the connecting rod of its rotation will drive no. 3 bevel gear rotation and with no. 3 bevel gear rotation, the screw rod fixedly connected with it will be stressed rotation, when the screw rod rotates, the screw rod will control the sliding of movable rod on the side of no. 2 fixed frame, and drive the limiting plate to be close to the limiting disc after sliding, and the limiting plate of both sides will pressurize the both sides of limiting disc and limit, make its limiting disc not easily appear rotation, through this method can make the blade when not needing to adjust, can make the blade base get effective limit fixed, make the device more stable when using. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a perspective view of the wind power generation shutdown device that the utility model proposes;

[0026] Figure 2 It is a perspective structure sectional view of the installation cylinder part in the wind power generation shutdown device that the utility model proposes;

[0027] Figure 3 It is another side perspective structure sectional view of the installation cylinder part in the wind power generation shutdown device that the utility model proposes;

[0028] Figure 4 It is a perspective structure schematic diagram of the limiting disc and no. 2 motor part in the wind power generation shutdown device that the utility model proposes;

[0029] Figure 5 It is a perspective structure schematic diagram of the wind power generation shutdown device that the utility model proposes.

[0030] Legend:

[0031] 1, rotating shaft, 2, installation cylinder, 3, blade base, 4, no. 1 fixed frame, 5, no. 1 reinforcing rib, 6, no. 1 motor, 7, protective shell, 8, no. 3 reinforcing rib, 9, no. 2 fixed frame, 10, screw rod, 11, no. 3 reinforcing rib, 12, no. 3 fixed frame, 13, no. 1 bevel gear, 14, no. 1 mounting groove, 15, no. 2 bevel gear, 16, no. 2 mounting groove, 17, limiting disc, 18, limiting plate, 19, movable rod, 20, no. 3 bevel gear, 21, no. 4 bevel gear, 22, transmission chain, 23, no. 2 motor, 24, synchronous wheel, 25, mounting rod, 26, connecting rod. DETAILED DESCRIPTION

[0032] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present application.

[0033] Referring to Figures 1 to 3 An embodiment provided by the present application includes a rotating shaft 1, one end of the rotating shaft 1 is fixedly connected with a mounting cylinder 2, a plurality of first mounting grooves 14 are formed in the inside of the mounting cylinder 2, a second mounting groove 16 is formed in the inside of the mounting cylinder 2, a first bevel gear 13 is arranged in the inside of the first mounting groove 14, a blade base 3 is fixedly connected to one side of the first bevel gear 13, the outer surface of the blade base 3 is rotatably connected with the inside of the mounting cylinder 2, a second bevel gear 15 is arranged in the inside of the second mounting groove 16, the outer surface of the first bevel gear 13 is engaged with the outer surface of the second bevel gear 15, a first fixing frame 4 is fixedly connected to one side of the mounting cylinder 2, a first motor 6 is fixedly connected to one end of the first fixing frame 4, a limiting disc 17 is fixedly connected to the output end of the first motor 6, one side of the second bevel gear 15 penetrates through one side of the mounting cylinder 2 and is fixedly connected with one side of the limiting disc 17, a first reinforcing rib 5 is fixedly connected to both sides of one end of the first fixing frame 4.

[0034] In the embodiment, when the wind power generation device needs to be stopped, the first motor 6 is started to drive the limiting disc 17 to rotate, the rotating limiting disc 17 drives the second bevel gear 15 to rotate, the rotating second bevel gear 15 drives the first bevel gear 13 around it to rotate to drive the blade base 3 to rotate, the rotating blade base 3 controls the blades fixed above to rotate, adjusts the angle of the blades, reduces the pushing effect of the blades by the wind, and through the method, when the wind power generator needs to be stopped, the angle of the blades is adjusted to reduce the pushing force between the blades and the wind, and when the rotating shaft 1 is braked, it is more efficient and convenient, and the risk of damage to the brake device is reduced.

[0035] Embodiment 2, as Figure 1 , Figure 4 and Figure 5As shown, the two sides of the mounting cylinder 2 are fixedly connected with two No. 9 fixed frames, the middle parts of the two sides of the two No. 9 fixed frames are fixedly connected with two movable rods 19, one end of the two movable rods 19 is fixedly connected with a limiting plate 18, the inside of the two movable rods 19 is threadedly connected with a lead screw 10, one end of the two lead screws 10 is rotatably connected with one end of the two No. 9 fixed frames respectively, one end of the two lead screws 10 is fixedly connected with a No. 20 bevel gear, one side of the mounting cylinder 2 is fixedly connected with a mounting rod 25, the outer surfaces of the two No. 20 bevel gears are engaged with two No. 21 bevel gears, the two No. 21 bevel gears are fixedly connected with a connecting rod 26, one end of the mounting rod 25 is fixedly connected with a No. 23 motor, one end of the two No. 9 fixed frames is fixedly connected with a No. 12 fixed frame, one end of the two No. 12 fixed frames is rotatably connected with both ends of the connecting rod 26 respectively, one end of the two No. 12 fixed frames is fixedly connected with a No. 8 reinforcing rib, one end of the two No. 9 fixed frames is fixedly connected with a No. 8 reinforcing rib, one side of the mounting cylinder 2 is fixedly connected with a protective shell 7.

[0036] In this embodiment, when the blade base 3 does not need to be adjusted, the No. 23 motor can be started to drive one of the two synchronous wheels 24 to rotate, which in turn drives the transmission chain 22 to move, the moving transmission chain 22 drives the other synchronous wheel 24 to rotate and drives the connecting rod 26 to rotate, the rotating connecting rod 26 drives the No. 21 bevel gear to rotate and in turn drives the No. 20 bevel gear to rotate, at this time the lead screw 10 fixedly connected with it will be stressed to rotate, when the lead screw 10 rotates, the lead screw 10 will control the movable rod 19 to slide on the side of the No. 9 fixed frame, and after sliding, the limiting plate 18 will drive the limiting disc 17 to approach, the two limiting plates 18 on both sides will press and limit the two sides of the limiting disc 17, so that the limiting disc 17 will not easily rotate, by this method, when the blade does not need to be adjusted, the blade base 3 can be effectively limited and fixed, so that the device is more stable when in use.

[0037] Working principle: when the wind power generation device needs to be stopped, the first motor 6 can be started to drive the limiting disc 17 to rotate, the rotating limiting disc 17 drives the second bevel gear 15 to rotate, the rotating second bevel gear 15 drives the surrounding first bevel gear 13 to rotate to drive the blade base 3 to rotate, the rotating blade base 3 controls the blade fixed above to rotate, the angle of the blade is adjusted, the effect of the blade being pushed by the wind is reduced, the blade angle is adjusted when the wind turbine needs to be stopped, the thrust between the blade and the wind is reduced, the shaft 1 is braked more efficiently and conveniently, the risk of the brake device being damaged is reduced, when the blade base 3 does not need to be adjusted, the second motor 23 can be started, the second motor 23 drives one of the synchronous wheels 24 to rotate, drives the transmission chain 22 to move, the moving transmission chain 22 drives the other synchronous wheel 24 to rotate to drive the connecting rod 26 to rotate, the rotating connecting rod 26 drives the fourth bevel gear 21 to rotate and drives the third bevel gear 20 to rotate, the screw rod 10 fixed with the third bevel gear 20 is forced to rotate, when the screw rod 10 rotates, the screw rod 10 controls the movable rod 19 to slide on the side of the second fixed frame 9, drives the limiting plate 18 to move close to the limiting disc 17 after sliding, the limiting plates 18 on both sides press and limit the both sides of the limiting disc 17, the limiting disc 17 is not easily rotated, the blade base 3 is effectively limited and fixed when the blade does not need to be adjusted, the device is more stable when used.

[0038] Finally, it should be noted that: the above only for the preferred embodiments of the utility model, and does not limit the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of technical features, any modification, equivalent replacement, improvement etc. that is made within the spirit and principles of the utility model, should be included in the protection scope of the utility model.

Claims

1. A wind power plant shutdown device comprising a rotating shaft (1), characterized in that: One end of the rotating shaft (1) is fixedly connected with the mounting cylinder (2), the inside of the mounting cylinder (2) is provided with a plurality of groups of first mounting grooves (14), the inside of the mounting cylinder (2) is provided with the second mounting groove (16), the inside of the first mounting groove (14) is provided with the first bevel gear (13), one side of the first bevel gear (13) is fixedly connected with the blade base (3), the outer surface of the blade base (3) is rotatably connected with the inside of the mounting cylinder (2), the inside of the second mounting groove (16) is provided with the second bevel gear (15), the outer surface of the first bevel gear (13) is engaged with the outer surface of the second bevel gear (15), one side of the mounting cylinder (2) is fixedly connected with the first fixed frame (4), one end of the first fixed frame (4) is fixedly connected with the first motor (6), the output end of the first motor (6) is fixedly connected with the limit disc (17), one side of the second bevel gear (15) penetrates through one side of the mounting cylinder (2) and is fixedly connected with one side of the limit disc (17), the two sides of the one end of the first fixed frame (4) are fixedly connected with the first reinforcing rib (5).

2. A wind power plant shutdown device according to claim 1, characterized in that Both sides of the one side of the mounting cylinder (2) are fixedly connected with the second fixed frame (9), the middle parts of the two sides of the one side of the second fixed frame (9) are fixedly connected with the movable rod (19).

3. A wind power plant shutdown device according to claim 2, characterized in that: The ends of the two movable rods (19) are fixedly connected with the limit plate (18), and the interiors of the two movable rods (19) are threadedly connected with the lead screw (10).

4. A wind power plant shutdown device according to claim 3, characterized in that: The ends of the two lead screws (10) are rotatably connected with the ends of the two second fixed frames (9), the ends of the two lead screws (10) are fixedly connected with the third bevel gear (20), and one side of the mounting cylinder (2) is fixedly connected with the mounting rod (25).

5. A wind power plant shutdown device according to claim 4, characterized in that: The outer surfaces of the two third bevel gears (20) are engaged with the fourth bevel gear (21), the two fourth bevel gears (21) are fixedly connected with the connecting rod (26), and one end of the mounting rod (25) is fixedly connected with the second motor (23).

6. A wind power plant shutdown device according to claim 5, characterized in that: The ends of the two second fixed frames (9) are fixedly connected with the third fixed frame (12), the ends of the two third fixed frames (12) are rotatably connected with the two ends of the connecting rod (26), and the ends of the two third fixed frames (12) are fixedly connected with the second reinforcing rib (11).

7. A wind power plant shutdown device according to claim 6, characterized in that: The output end of the second motor (23) and the middle part of the connecting rod (26) are fixedly connected with the synchronous wheel (24), and the two synchronous wheels (24) are drivingly connected with the transmission chain (22).

8. The wind power generation shutdown device according to claim 2, characterized in that: The ends of the two second fixed frames (9) are fixedly connected with the third reinforcing rib (8), and one side of the mounting cylinder (2) is fixedly connected with the protective shell (7).

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