CN216691949U

CN216691949U - Braking device of wind driven generator

Info

Publication number: CN216691949U
Application number: CN202122456739.1U
Authority: CN
Inventors: 张品勇
Original assignee: Yantai Tengda Brake Manufacturing Co ltd
Current assignee: Yantai Tengda Brake Manufacturing Co ltd
Priority date: 2021-10-12
Filing date: 2021-10-12
Publication date: 2022-06-07
Anticipated expiration: 2031-10-12

Abstract

The utility model provides a braking device of a wind driven generator, which belongs to the technical field of wind power generation and comprises a motor rotating shaft and a braking box, wherein the motor rotating shaft is rotatably connected inside the braking box, a braking disc is fixedly connected outside the motor rotating shaft, and hydraulic cylinders are fixedly arranged on the inner top wall and the inner bottom wall of the braking box. According to the utility model, two supporting frames can be driven to be close to the brake disc by operating two hydraulic cylinders, the inclined brake ring is arranged outside the brake disc, the two supporting frames respectively drive the two extrusion speed reducing blocks to be close to each other, the opposite sides of the extrusion speed reducing blocks are provided with the brake notches, so that the two extrusion speed reducing blocks are close to each other, and the brake notches are matched to play a brake effect on the top and the bottom of the inclined brake ring, so that the wear-resistant brake effect of the device is slow and stable, the generator shaft is not easily damaged, the device has strong durability, the brake effect is good, and the service life of the device is long.

Description

Braking device of wind driven generator

Technical Field

The utility model relates to the technical field of wind power generation, in particular to a braking device of a wind driven generator.

Background

The wind driven generator has a simpler working principle, the wind wheel rotates under the action of wind power, the kinetic energy of the wind is converted into mechanical energy of a wind wheel shaft, the generator is driven by the wind wheel shaft to rotate to generate electricity, and wind energy is also solar energy in a broad sense, so that the wind driven generator can be also called as a wind driven generator, and is a heat energy utilization generator taking the sun as a heat source and taking the atmosphere as a working medium; during maintenance, the machine is stopped by a braking device.

At present, a large-scale wind driven generator is one of the most important key devices in a wind power generation system, and is stopped by a braking device during overhauling and maintenance; the braking device is continuously worn in long-term use, the braking performance is necessarily influenced, the operation safety of the whole system is influenced, and if the braking device is braked rapidly, a generator shaft is damaged, the service life of an engine is shortened, so that the problem is solved by the braking device of the wind driven generator.

SUMMERY OF THE UTILITY MODEL

In order to make up for the defects, the utility model provides a braking device of a wind driven generator, and aims to solve the problems that the existing braking equipment is worn and worn for a long time, the braking performance is influenced, and the service life of an engine is influenced due to the fact that a generator shaft is easily damaged when emergency braking is carried out.

The utility model is realized by the following steps:

the utility model provides a braking device of a wind driven generator, which comprises a motor rotating shaft and a braking box, wherein the motor rotating shaft is rotatably connected inside the braking box, a braking disc is fixedly connected outside the motor rotating shaft, hydraulic cylinders are fixedly arranged on the inner top wall and the inner bottom wall of the braking box, the output ends of the two hydraulic cylinders are fixedly connected with supporting frames, an inclined braking ring is fixedly connected outside the braking disc, extrusion deceleration blocks are fixedly arranged on one opposite sides of the two supporting frames, braking notches are formed in one opposite sides of the two extrusion deceleration blocks, and the top and the bottom of the inclined braking ring respectively extend to the insides of the two braking notches.

Preferably, the left side and the right side of the brake box are both provided with rotating bearings, and the motor rotating shaft is fixedly connected to the inner end surfaces of the two rotating bearings.

Preferably, the bottom and the bottom of the brake box are both provided with heat dissipation holes, and the top and the bottom of the brake box are both fixedly connected with dust screens.

Preferably, two telescopic oil cylinders are fixedly mounted on the left side and the right side of the brake box, four supporting plates are fixedly connected to the output ends of the telescopic oil cylinders, one side of each supporting plate, far away from the telescopic oil cylinder, is fixedly connected with an extrusion component, and two adjacent extrusion components are in contact with the brake disc on the opposite side.

Preferably, four equal fixedly connected with holding ring in top and the bottom of flexible hydro-cylinder, it is a plurality of equal sliding connection in inboard of holding ring has the locating lever, eight one side that the locating lever is close to the brake disc respectively with four backup pad fixed connection.

Preferably, the extrusion component comprises three support cylinders, an adjusting spring and a brake block, the support cylinders are fixedly connected to one side of the support plate away from the telescopic oil cylinder, the adjusting spring is fixedly connected to the inside of the support cylinders, the other side of the adjusting spring is fixedly connected with the brake block, the brake block is slidably connected to one side of the support cylinders away from the support plate, and one side of the brake block away from the support plate is in contact with the brake disc.

Preferably, three adjacent brake blocks are shortened in sequence by taking the motor rotating shaft as a terminal point.

The utility model has the beneficial effects that: the utility model obtains the braking device of the wind driven generator through the design, the braking disc is arranged outside the rotating shaft of the motor, two hydraulic cylinders are operated to drive two supporting frames to be close to the braking disc, the inclined braking ring is arranged outside the braking disc, the extrusion deceleration blocks are arranged on the opposite sides of the two supporting frames, the braking notches are arranged on the opposite sides of the extrusion deceleration blocks, the supporting frames drive the extrusion deceleration blocks to enable the two braking notches to be close to the extrusion inclined braking ring, the two extrusion deceleration blocks are close to each other, the braking notches are matched to play a braking effect on the top and the bottom of the inclined braking ring, so that the wear-resisting braking effect of the device is better, and the brake is relatively slow and stable, and is not easy to damage the generator shaft, so that the device has better and more stable anti-abrasion brake effect, stronger durability, and is not easy to damage the generator shaft, and the service life of the device is longer.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic diagram of a structure provided by an embodiment of the present invention;

FIG. 2 is an enlarged view of the structure at A in FIG. 1 according to an embodiment of the present invention;

FIG. 3 is an enlarged view of the structure at B in FIG. 1 according to an embodiment of the present invention;

FIG. 4 is a schematic cross-sectional side view of a structure provided by an embodiment of the present invention.

In the figure: 1. a motor shaft; 2. a brake box; 3. a brake disc; 4. a hydraulic cylinder; 5. a support frame; 6. tilting the brake ring; 7. extruding the speed reducing block; 8. a detent notch; 9. a rotating bearing; 10. heat dissipation holes; 11. a dust screen; 12. a telescopic oil cylinder; 13. a support plate; 14. an extrusion member; 141. a support cylinder; 142. adjusting the spring; 143. a brake pad; 15. a positioning ring; 16. and (5) positioning the rod.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Examples

Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a aerogenerator arresting gear, including motor shaft 1 and brake box 2, motor shaft 1 rotates to be connected in the inside of brake box 2, motor shaft 1's outside fixedly connected with brake disc 3, the equal fixed mounting of interior roof and interior diapire of brake box 2 has pneumatic cylinder 4, the equal fixedly connected with carriage 5 of output of two pneumatic cylinders 4, the outside fixedly connected with slope brake ring 6 of brake disc 3, the equal fixed mounting in one side relative of two carriage 5 has extrusion deceleration piece 7, braking notch 8 has all been seted up to one side that two extrusion deceleration pieces 7 are relative, the top of slope brake ring 6 extends to the inside of two braking notches 8 with the bottom part respectively.

In this embodiment, can drive two carriage 5 through two pneumatic cylinders 4 of operation and be close to

brake disc

3, 3 externally mounted of brake disc has slope braking ring 6, two carriage 5 drive two extrusion deceleration piece 7 respectively and are close to, extrusion deceleration piece 7 is relative one side seted up braking notch 8, make two extrusion deceleration piece 7 be close to each other, cooperation braking notch 8 all plays braking effect to slope braking ring 6's top and bottom, make the wear-resisting braking effect and the slow stability of device, be difficult for causing the damage to the generator shaft, it is stronger to make the device reach the durability, braking effect is good, the life of device is longer.

Referring to fig. 1-4, by adopting the above technical solution, the rotating bearings 9 are installed on both sides of the braking box 2, so that the braking box 2 is not easily worn when the motor rotating shaft 1 rotates, the rotation of the rotating bearings 9 is stable, and the practicability and durability of the device are improved.

Referring to fig. 1-4, by adopting the above technical solution, the heat dissipation holes 10 can have a heat dissipation effect on the brake box 2, so that heat generated after the extrusion deceleration block 7 extrudes the inclined brake ring 6 can be dissipated by the heat dissipation holes 10, the dust screen 11 can have a dust prevention effect on the brake box 2, and when the heat dissipation holes 10 dissipate heat, the dust screen 11 can prevent dust from entering the brake box 2 through the heat dissipation holes 10, thereby increasing the practicability of the device.

Referring to fig. 1-4, by adopting the above technical solution, the telescopic cylinder 12 can drive the supporting plate 13 to approach the brake disc 3, so that the extruding component 14 contacts the brake disc 3, thereby playing a braking effect on the brake disc 3, further increasing the braking capability of the device, and making the device have a good braking effect and wear-resistant and durable.

Referring to fig. 1-4, by adopting the above technical solution, when the support plate 13 is driven by the operation of the telescopic cylinder 12, the two positioning rods 16 can be driven to slide in the positioning ring 15, so that the positioning ring 15 can position and support the positioning rods 16, and further, when the support plate 13 is displaced left and right, the positioning rods 16 can achieve a better positioning effect, so that the support plate 13 can be always kept stable during displacement, and the practicability of the device is increased.

Referring to fig. 1-4, by adopting the above technical solution, the extruding part 14 is composed of three supporting cylinders 141, three adjusting springs 142 and three brake blocks 143, when the supporting plate 13 pushes the three supporting cylinders 141, the brake blocks 143 can be driven to contact the brake disc 3, so as to better brake the brake disc 3, and the adjusting springs 142 can make the brake blocks 143 have the elasticity of retraction, thereby reducing the wear of the brake blocks 143 and increasing the service life of the device.

Referring to fig. 1-4, by adopting the above technical solution, when the supporting plate 13 is close to the brake disc 3, the three brake pads 143 contact the brake disc 3 in sequence, so that the three brake pads 143 can slowly exert a braking effect on the brake disc 3, when the three brake pads 143 all contact the brake disc 3, the friction effect is strongest, so that the braking wear-resistant effect of the device is stronger, and the braking effect is slowly increased, so that the device brakes slowly and stably, the engine shaft is not easily damaged, and the service life of the device is prolonged.

Specifically, the working principle of the wind driven generator braking device is as follows: 1 externally mounted of motor shaft has brake disc 3, two pneumatic cylinders 4 of operation can drive two carriage 5 and be close to

brake disc

3, 3 externally mounted of brake disc have slope braking ring 6, extrusion deceleration piece 7 is all installed to two carriage 5 relative one sides, extrusion deceleration piece 7 relative one side has seted up braking notch 8, make carriage 5 drive extrusion deceleration piece 7, make two braking notch 8 be close to extrusion slope braking ring 6, make two extrusion deceleration piece 7 be close to each other, cooperation braking notch 8 all plays braking effect to the top and the bottom of slope braking ring 6, make the wear-resisting braking effect of device better, and the brake is slow stable relatively, be difficult for causing the damage to the generator shaft, it is better and comparatively stable to make the device reach abrasionproof braking effect, the durability is stronger, and be difficult for causing the damage to the generator shaft, the life of device is longer.

It should be noted that the specific model specifications of the hydraulic cylinder 4 and the telescopic cylinder 12 need to be determined by model selection according to the actual specification of the device, and the specific model selection calculation method adopts the prior art in the field, so detailed description is omitted.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes may be made to the present invention by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A wind driven generator braking device is characterized in that: including motor shaft (1) and brake box (2), motor shaft (1) rotates to be connected in the inside of brake box (2), the outside fixedly connected with brake disc (3) of motor shaft (1), the equal fixed mounting of interior roof and interior diapire of brake box (2) has pneumatic cylinder (4), two the equal fixedly connected with carriage (5) of output of pneumatic cylinder (4), the outside fixedly connected with slope brake ring (6) of brake disc (3), two the equal fixed mounting in relative one side of carriage (5) has extrusion deceleration piece (7), two brake notch (8) have all been seted up to one side that extrusion deceleration piece (7) is relative, the top and the bottom of slope brake ring (6) do not extend to the inside of two brake notches (8).

2. A wind turbine braking apparatus according to claim 1, wherein: the left side and the right side of the brake box (2) are provided with rotating bearings (9), and the motor rotating shaft (1) is fixedly connected to the inner end faces of the two rotating bearings (9).

3. A wind turbine braking apparatus according to claim 1, wherein: the bottom and the bottom of the brake box (2) are both provided with heat dissipation holes (10), and the top and the bottom of the brake box (2) are both fixedly connected with dust screens (11).

4. A wind turbine braking apparatus according to claim 1, wherein: the equal fixed mounting in both sides has two flexible hydro-cylinders (12), four about brake box (2) the equal fixedly connected with backup pad (13) of output of flexible hydro-cylinder (12), one side fixedly connected with extrusion part (14) of flexible hydro-cylinder (12) are kept away from in backup pad (13), adjacent two one side that extrusion part (14) are relative contacts with brake disc (3).

5. A wind turbine braking apparatus according to claim 4, wherein: four the top and the equal fixedly connected with holding ring (15) in bottom of flexible hydro-cylinder (12) are a plurality of the inboard equal sliding connection of holding ring (15) has locating lever (16), eight one side that locating lever (16) are close to brake disc (3) respectively with four backup pad (13) fixed connection.

6. A wind turbine braking apparatus according to claim 4, wherein: the extrusion component (14) comprises three supporting cylinders (141), an adjusting spring (142) and a brake block (143), the supporting cylinders (141) are fixedly connected to one side, away from the telescopic oil cylinder (12), of the supporting plate (13), the adjusting spring (142) is fixedly connected to the inside of the supporting cylinders (141), the other sides of the adjusting spring (142) are fixedly connected with the brake block (143), the brake block (143) is connected to one side, away from the supporting plate (13), of the supporting cylinders (141) in a sliding mode, and one side, away from the supporting plate (13), of the brake block (143) is in contact with the brake disc (3).

7. A wind turbine braking apparatus according to claim 6, wherein: the adjacent three brake blocks (143) are sequentially shortened by taking the motor rotating shaft (1) as a terminal point.