Compact yawing variable-pitch wind power speed reducer

Abstract

The utility model discloses a compact yaw variable pitch wind power speed reducer, which relates to the technical field of wind power speed reducers, and comprises a speed reducer body, both sides of the speed reducer body are fixedly connected with fixing sleeves, a conveying shaft is arranged in the speed reducer body, both ends of the conveying shaft penetrate through the fixing sleeves, and the conveying shaft is fixedly connected with the speed reducer body. An adjusting mechanism is installed at the top of the speed reducer body, a protection assembly is installed on the surface of the fixing sleeve, the two racks can stably and smoothly slide in the box body through rotation of the gear, the connecting rod is driven to move, the outer ring is tightly attached to the outer side of the fixing sleeve and the outer side of the speed reducer body, the speed reducer body is effectively reinforced, and the service life of the speed reducer is prolonged. Compared with the prior art, potential structure problems are avoided, meanwhile, efficient heat dissipation is achieved through the combination of the through holes and the fan, the problem that heat dissipation is poor due to the fact that internal parts are compact is solved, long-term stable operation of the speed reducer is guaranteed, and therefore the overall performance and reliability of the speed reducer are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of wind power reducers, in particular to a compact yaw-pitch wind power reducer. Background Art

[0002] A wind turbine reducer is a reduction device used in wind turbines. Its function is to convert the high-speed rotation of the wind turbine into a low-speed, high-torque output to drive the generator to generate electricity. A wind turbine reducer is usually composed of gears, bearings, housings and other components.

[0003] For example, publication number CN212338046U discloses a compact reducer, including a motor housing, a sun gear, an inner gear ring, a flange, a planetary carrier, a planetary gear, a friction pad and an output shaft. The sun gear is rotatably mounted in the motor housing, a mounting hole is provided at the left end of the sun gear, and a first tooth portion is provided on the outer periphery of the right end. The left end of the inner gear ring is fixedly connected to the right end of the motor housing, and the right end is fixedly connected to the left end of the flange. A second tooth portion is provided on the inner side of the inner gear ring. The planetary carrier is rotatably mounted on the inner side of the flange, and the planetary gears are respectively meshed with the first tooth portion and the second tooth portion. The friction pad is fixed to the right side of the motor housing, the left end of the planetary wheel is in contact with the friction pad, and the right end is rotatably connected to the left end of the planetary carrier. The output shaft is fixed to the right end of the planetary carrier, and the rotation axes of the sun gear, the planetary carrier and the output shaft are coaxial.

[0004] However, in the prior art, due to the small size of the compact reducer, the friction and movement between the internal components will produce greater vibration, thereby affecting the overall firmness and easily becoming loose. Moreover, the small internal gap will also affect the heat dissipation performance, resulting in the service life of the compact reducer being affected. Summary of the invention

[0005] The utility model aims to solve the problem that the compact reducer in the prior art has a small size that affects the firmness and heat dissipation performance, and proposes a compact yaw-pitch wind turbine reducer.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a compact yaw-pitch wind turbine reducer, comprising a reducer body, both sides of the reducer body are fixedly connected with fixed sleeves, a conveying shaft is installed inside the reducer body, both ends of the conveying shaft pass through the fixed sleeves, an adjustment mechanism is installed on the top of the reducer body, and a protective component is installed on the surface of the fixed sleeve;

[0007] The adjustment mechanism comprises a box body, through holes are provided on both sides of the box body, a fan is installed inside the through holes, a gear is rotatably connected to the center of the box body cavity, racks are meshed and connected to both sides of the gear, two racks are symmetrically arranged inside the box body with the gear as the center, and the two racks pass through the box body at opposite ends, a connecting rod is fixedly connected to one end of the box body, a dustproof net is provided above the through hole, and the dustproof net is fixedly connected to the top of the box body;

[0008] The protection component comprises an outer ring, an inner ring is arranged inside the outer ring, and the inner ring is sleeved on the surface of the fixing sleeve.

[0009] Preferably, a knob is fixedly connected to the center of the top of the gear, and the knob is rotatably connected to the box body.

[0010] Preferably, rails are fixedly connected to both sides of the inner cavity of the box body, and a sliding groove is provided on the side wall of the rack, and the rails are slidably connected to the sliding groove.

[0011] Preferably, a second mounting groove is formed on the inner wall of the outer ring, and a first mounting groove is formed on the outer surface of the inner ring.

[0012] Preferably, a spring is provided on the outer edge of the inner ring, and the outer wall of the outer ring is fixedly connected to the bottom of the connecting rod.

[0013] Preferably, one end of the spring is fixedly connected to the inner wall of the second mounting groove, and the other end of the spring is fixedly connected to the inner wall of the first mounting groove.

[0014] Preferably, one end of the outer ring is sleeved on the surface of the fixed sleeve, and the other end of the outer ring is sleeved on the surface of the inner ring.

[0015] Compared with the prior art, the advantages and positive effects of the utility model are:

[0016] 1. In the utility model, through the rotation of the gear, the two racks can slide steadily and smoothly in the box body, driving the connecting rod to move, so that the outer ring is tightly fitted to the outside of the fixed sleeve and the reducer body, effectively reinforcing the reducer body and avoiding potential structural problems. At the same time, the combination of the through hole and the fan realizes efficient heat dissipation, solves the problem of poor heat dissipation caused by compact internal parts, ensures the long-term stable operation of the reducer, and thus improves the overall performance and reliability of the reducer.

[0017] 2. In the utility model, the connection stability between the reducer body and the fixed sleeve is enhanced through the elastic design of the inner ring and the squeezing effect of the spring. At the same time, the dustproof net effectively blocks dust from entering the fan and the reducer body, ensuring the durability and stability of the heat dissipation performance and the safe operation of the internal parts. These design details together improve the overall performance and service life of the reducer. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The utility model proposes a schematic diagram of the overall three-dimensional structure of a compact yaw-pitch wind turbine reducer;

[0019] Figure 2 A partial three-dimensional structural schematic diagram of a compact yaw-pitch wind turbine reducer is proposed for the utility model;

[0020] Figure 3 A three-dimensional structural schematic diagram of a compact yaw-pitch wind turbine reducer adjustment mechanism is proposed for the utility model;

[0021] Figure 4 The utility model provides a three-dimensional structural schematic diagram of a compact yaw-pitch wind turbine reducer protection component.

[0022] Legend: 1. Reducer body; 2. Conveying shaft; 3. Fixed sleeve; 4. Protective assembly; 41. Outer ring; 42. Inner ring; 43. First mounting slot; 44. Spring; 45. Second mounting slot; 5. Adjustment mechanism; 51. Box body; 511. Through hole; 52. Fan; 53. Gear; 531. Knob; 54. Rack; 541. Slide slot; 55. Track; 56. Connecting rod; 57. Dust net. DETAILED DESCRIPTION

[0023] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0024] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure. Embodiment 1

[0025] like Figure 1-3 As shown, the utility model provides a compact yaw-pitch wind turbine reducer, comprising a reducer body 1, both sides of the reducer body 1 are fixedly connected with fixing sleeves 3, a conveying shaft 2 is installed inside the reducer body 1, both ends of the conveying shaft 2 pass through the fixing sleeves 3, an adjustment mechanism 5 is installed on the top of the reducer body 1, and a protective component 4 is installed on the surface of the fixing sleeve 3;

[0026] The adjustment mechanism 5 includes a box body 51, through holes 511 are provided on both sides of the box body 51, a fan 52 is installed inside the through hole 511, a gear 53 is rotatably connected to the center of the inner cavity of the box body 51, racks 54 are meshed and connected to both sides of the gear 53, two racks 54 are symmetrically arranged inside the box body 51 with the gear 53 as the center, and the two racks 54 pass through the box body 51 at opposite ends, a connecting rod 56 is fixedly connected to one end of the box body 51, a dustproof net 57 is provided above the through hole 511, and the dustproof net 57 is fixedly connected to the top of the box body 51;

[0027] The protection component 4 includes an outer ring 41 , an inner ring 42 is arranged inside the outer ring 41 , and the inner ring 42 is sleeved on the surface of the fixing sleeve 3 .

[0028] The specific configuration and function of this embodiment are described in detail below. When the knob 531 is operated, it can drive the gear 53 to rotate, and this rotation action will simultaneously act on the two racks 54. This design ensures that the racks 54 can slide steadily and smoothly inside the box body 51, thereby ensuring the stability and smoothness of the overall structure.

[0029] A slide groove 541 is provided on one side of the rack 54, and this design allows it to form a tight fit with the track 55. When the rack 54 slides in the box body 51, the slide groove 541 moves along the track 55, and this action in turn drives the connecting rod 56 to move. The movement of the connecting rod 56 makes the outer ring 41 fit more closely to the outside of the fixing sleeve 3 and the reducer body 1, thereby effectively reinforcing the reducer body 1. This reinforcement mechanism not only enhances the structural stability of the reducer body 1, but also effectively avoids problems caused by loose or unstable internal structures.

[0030] The combination of the through hole 511 and the fan 52 plays a key role. The through hole 511 allows external air to smoothly enter the reducer body 1, while the fan 52 accelerates the heat dissipation by generating airflow. This heat dissipation design effectively solves the problem of compact internal parts of the reducer body 1 and poor heat dissipation, ensuring the long-term stable operation of the reducer. Embodiment 2

[0031] like Figure 3 and Figure 4As shown, a knob 531 is fixedly connected to the center of the top of the gear 53, and the knob 531 is rotatably connected to the box body 51. Tracks 55 are fixedly connected to both sides of the inner cavity of the box body 51, and a slide groove 541 is provided on the side wall of the rack 54, and the track 55 is slidably connected to the slide groove 541. A second mounting groove 45 is provided on the inner wall of the outer ring 41, and a first mounting groove 43 is provided on the outer surface of the inner ring 42. A spring 44 is provided on the outer edge of the inner ring 42, and the outer wall of the outer ring 41 is fixedly connected to the bottom of the connecting rod 56. One end of the spring 44 is fixedly connected to the inner wall of the second mounting groove 45, and the other end of the spring 44 is fixedly connected to the inner wall of the first mounting groove 43. One end of the outer ring 41 is sleeved on the surface of the fixed sleeve 3, and the other end of the outer ring 41 is sleeved on the surface of the inner ring 42.

[0032] The effect achieved by the entire embodiment is that the inner ring 42 is made of elastic material and has excellent resilience and deformation recovery ability. The inner ring 42 is allowed to fit closely to the outer wall of the fixing sleeve 3 when being squeezed by the spring 44. The uniform distribution and appropriate pre-tightening force of the multiple springs 44 make the squeezing of the fixing sleeve 3 by the inner ring 42 more uniform and tight, thereby enhancing the connection stability between the reducer body 1 and the fixing sleeve 3.

[0033] In order to prevent dust in the external environment from entering the fan 52 and affecting its heat dissipation performance, the dustproof net 57 can effectively block dust and ensure that the inside of the fan 52 remains clean, thereby ensuring the durability and stability of its heat dissipation effect. In addition, the dustproof net 57 can also prevent dust from entering the reducer body 1 through the through hole 511, thereby maintaining the safety and stability of the internal parts.

[0034] The use method and working principle of the device: The knob 531 is designed to drive the gear 53 to rotate, so that the gear 53 can simultaneously apply force to the two racks 54, so that the racks 54 slide smoothly inside the box body 51. The slide groove 541 on one side of the rack 54 moves along the track 55, thereby driving the connecting rod 56 to move synchronously. As the connecting rod 56 moves, the outer ring 41 fits more closely to the outside of the fixing sleeve 3 and the reducer body 1, effectively reinforcing the reducer body 1 and avoiding the problem of internal structural instability caused by the compact structure.

[0035] In addition, the combination of the through hole 511 and the fan 52 ensures a good heat dissipation effect, preventing the normal heat dissipation from being affected by the compact arrangement of the internal parts of the reducer body 1. When the fan 52 is working, the external air is introduced through the through hole 511 to help the internal heat to be quickly discharged, thereby maintaining the stability of the internal temperature of the reducer body 1.

[0036] The inner ring 42 is made of elastic material and fits tightly to the outer wall of the fixing sleeve 3 under the push of multiple springs 44. At the same time, the dustproof net 57 is arranged at the air inlet of the fan 52, which effectively blocks the entry of dust, protects the heat dissipation performance of the fan 52, and prevents dust from entering the reducer body 1 through the through hole 511, thereby ensuring the normal operation of the internal parts.

[0037] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A compact yaw-pitch wind turbine reducer, comprising a reducer body (1), both sides of the reducer body (1) being fixedly connected with fixing sleeves (3), a conveying shaft (2) being installed inside the reducer body (1), both ends of the conveying shaft (2) passing through the fixing sleeves (3), characterized in that: An adjustment mechanism (5) is installed on the top of the reducer body (1), and a protection component (4) is installed on the surface of the fixing sleeve (3); The regulating mechanism (5) comprises a box body (51), both sides of the box body (51) are provided with through holes (511), a fan (52) is installed inside the through hole (511), a gear (53) is rotatably connected to the center of the inner cavity of the box body (51), both sides of the gear (53) are meshingly connected to racks (54), two racks (54) are symmetrically arranged inside the box body (51) with the gear (53) as the center, and the two ends of the two racks (54) opposite to each other pass through the box body (51), one end of the box body (51) is fixedly connected to a connecting rod (56), a dustproof net (57) is arranged above the through hole (511), and the dustproof net (57) is fixedly connected to the top of the box body (51); The protection component (4) comprises an outer ring (41), an inner ring (42) is arranged inside the outer ring (41), and the inner ring (42) is sleeved on the surface of the fixing sleeve (3).

2. A compact yaw-pitch wind turbine reducer according to claim 1, characterized in that: A knob (531) is fixedly connected to the center of the top of the gear (53), and the knob (531) is rotatably connected to the box body (51).

3. A compact yaw-pitch wind turbine reducer according to claim 1, characterized in that: Tracks (55) are fixedly connected to both sides of the inner cavity of the box body (51), a sliding groove (541) is provided on the side wall of the rack (54), and the track (55) is slidably connected to the sliding groove (541).

4. A compact yaw-pitch wind turbine reducer according to claim 1, characterized in that: A second mounting groove (45) is formed on the inner wall of the outer ring (41), and a first mounting groove (43) is formed on the outer surface of the inner ring (42).

5. The compact yaw-pitch wind turbine reducer according to claim 1, characterized in that: A spring (44) is provided on the outer edge of the inner ring (42), and the outer wall of the outer ring (41) is fixedly connected to the bottom of the connecting rod (56).

6. A compact yaw-pitch wind turbine reducer according to claim 5, characterized in that: One end of the spring (44) is fixedly connected to the inner wall of the second installation groove (45), and the other end of the spring (44) is fixedly connected to the inner wall of the first installation groove (43).

7. A compact yaw-pitch wind turbine reducer according to claim 6, characterized in that: One end of the outer ring (41) is sleeved on the surface of the fixed sleeve (3), and the other end of the outer ring (41) is sleeved on the surface of the inner ring (42).

Images