WO2012065539A1

WO2012065539A1 - Connector assembly, power transmission system, wind turbine and wind power generator

Info

Publication number: WO2012065539A1
Application number: PCT/CN2011/082201
Authority: WO
Inventors: 高则行
Original assignee: Gao Zehang
Priority date: 2010-11-15
Filing date: 2011-11-15
Publication date: 2012-05-24
Also published as: CN102466011A

Abstract

A connector assembly, a power transmission system, a wind turbine and a wind power generator are provided. The connector assembly (100) has a central axial line (102) and comprises a central connector (160) provided concentrically around the axial line (102) and at least a peripheral connector (140); the central connector (160) and the peripheral connector (140) each includes a first component and a second component which are combined together and capable of integrally translating along the direction of a central axial line (102); the first component (161) of the central connector (160) can swing around the central axial line (102), and the first component (141) of the peripheral connector (140) can swing around an adjacent inner connector. The connector assembly, the power transmission system, the wind turbine and the wind power generator can transmit the power from a high site to any site of expected height smoothly.

Description

Coupling assembly and power transmission system

And wind turbines and wind turbines

Technical field

The present invention relates to a coupler assembly, a power transfer system including such a coupler assembly, and a wind turbine including such a power transmission system and a wind generator including the same. Background technique

In order to protect the living environment of the earth and realize the sustainable development of energy, all countries in the world are investing a lot of manpower, material resources and financial resources to actively develop and utilize clean energy. As a clean energy source, wind energy has become the most important research and development object. At present, various wind turbines have been developed.

Traditional wind turbines are typically wind turbines that receive wind energy and generators that convert wind energy into electrical energy. The wind turbine and generator are packaged in a machine to form the nose and then mounted on the top of the tower by means of a rotating support. However, the nose of the nose, especially the large and medium wind turbines, is very heavy and can reach tens of tons to several hundred tons, while the head mounting height is generally more than 100 meters. Therefore, expensive lifting equipment is required for lifting, and an expensive rotating support device is required for supporting.

In addition, since the weight of the nose is very heavy, when the wind direction changes, the wind-fighting operation can only be completed by the mechanical wind-assisting device, and accordingly, the wind measuring device is added. The presence of mechanical wind turbines and wind gauges increases the size and structural complexity of wind turbines and therefore increases the cost of manufacturing, installing and maintaining wind turbines.

In traditional wind turbines, the generator not only occupies most of the total weight but also requires frequent maintenance. However, because the generator is housed in a closed cabin, it poses many difficulties for routine inspection, repair and maintenance. As a result, as many self-test devices as possible have to be installed in the wind turbine to detect the fault point as accurately as possible in order to complete the repair. This also caused high wind turbine cost.

Because the generator is installed in the nacelle that swings with the wind, the cable used to transmit power to the outside will be twisted. Therefore, it is necessary to install the corresponding cable unwinding and twisting cable protection device. This It is another factor affecting the cost of wind turbines.

Although it is recognized that the larger the stand-alone capacity of a wind turbine, the higher the cost efficiency, but at the same time, the weight of the wind turbine and the generator are also higher, thereby limiting the increase in stand-alone capacity. Summary of the invention

SUMMARY OF THE INVENTION The present invention has been made in view of the above technical problems, and an object thereof is to provide a wind power generator which is low in manufacturing, installation, and operation, in which wind energy received by a wind wheel is transmitted downward to a generator located at a desired height.

Accordingly, according to a first aspect of the present invention, a coupler assembly is provided, the coupler assembly having a central axis and including a centrally located central coupler disposed centrally about the central axis in a concentric manner At least one peripheral coupler in the periphery, wherein the center coupler and the peripheral coupler each include a first member and a second member that are coupled together and are capable of being integrally translated along the central axis direction, Wherein the first member of the center coupler is pivotable about the central axis relative to the corresponding second member, the first member of the peripheral coupler being capable of being adjacent to the adjacent second member The internal coupling swings.

According to a second aspect of the present invention, a power transmission system is provided, comprising: an input shaft for receiving power, the input shaft being rotatable about an axis of the input shaft and having a swing axis, the pendulum a rotation axis extending in a direction different from an axial direction of the input shaft, the input shaft being swingable about the swing axis, the input shaft including at least two distributed along an axial direction of the input shaft Input phase segments with different phases;

An output shaft for outputting power, the output shaft being rotatable about an axis of the output shaft, and including at least two output shaft segments having different phases distributed along an axial direction of the output shaft, the at least two Output shaft segments correspond in phase to the at least two input shaft segments;

At least two upper motion converting devices, each of the upper motion converting devices having a first end and a second end, the first end being respectively associated with the at least two inputs of the input shaft Corresponding ones of the input shaft segments are connected for converting the rotation of the input shaft about the axis of the input shaft into a translation of the second end in the direction of the swing axis and the upper movement a swinging of the conversion device about the direction of the swing axis;

a coupler assembly including a centrally located central coupler disposed about the swing axis in a concentric manner and at least one peripheral coupler at the periphery, wherein the center coupler and the peripheral coupler are each A first member and a second member that are coupled together and are capable of translationally integrally along the swing axis, the first member of the center coupler being rotatable relative to the respective second member The axis swings, the first member of the peripheral coupler is rotatable relative to the corresponding second member about the adjacent inner coupler, the first member of each of the center coupler and the peripheral coupler Connected to a corresponding second end of the upper motion conversion device;

At least two lower motion converting devices, each of the lower motion converting devices having a first end and a second end, the first end of the lower motion converting device being respectively associated with the center coupler and the peripheral coupler Corresponding one of the second members is connected, the second end of the lower motion converting device is respectively connected to a corresponding one of the at least two output shaft segments of the output shaft, thereby enclosing the second member of the coupler The translation of the direction of the swing axis is converted into rotation of the output shaft about the first direction.

According to a third aspect of the present invention, a wind turbine is provided, comprising: a tower that is set up in a vertical direction; a nacelle that is swingably disposed about the swing axis extending in a vertical direction a top end; a wind wheel that is rotatably disposed on the machine under the action of the wind; and the power transmission system described above, wherein the input shaft is coupled to the wind wheel for receiving power generated by the wind wheel.

According to a fourth aspect of the invention, a wind power generator comprising the above wind turbine is provided.

Preferably, the coupler assembly further includes a cylinder assembly including at least one cylinder disposed concentrically about the central axis (or a swing axis), a cylinder located within the outermost cylinder Having a cylindrical outer surface, the center coupler and the second member of the peripheral coupler being slidably disposed in the at least one cylinder, respectively, along the central axis direction, the first member of the peripheral coupler Around an adjacent inner cylinder The outer surface is swung.

Preferably, the second member of the center coupler includes a central sliding portion slidably mountable in a central cylinder of the at least one cylinder, the central sliding portion comprising:

a central chamber, the first member of the central coupler being rotatably received in the central chamber, and

a support member, located in the central chamber, capable of restricting movement of the first member of the center coupler in the central chamber along the central axis while allowing the first member of the center coupler to be Swinging around the central axis in the central chamber;

The second member of the at least one peripheral coupler includes a peripheral sliding portion slidably mountable in a peripheral cylinder of the at least one cylinder, the peripheral sliding portion comprising:

a cylinder bore, an adjacent inner cylinder is mounted in the iris hole in a clearance fit manner, and a peripheral chamber is formed around the cylinder bore, and the first member of the peripheral coupler is swingably received in the In the peripheral chamber, and

a support member, located in the peripheral chamber, capable of restricting movement of the first member of the peripheral coupler in the peripheral chamber along the central axis while allowing the corresponding peripheral coupler The first member is swung around the outer surface of the adjacent inner rainbow within the peripheral chamber.

Preferably, the central chamber includes a top surface and a bottom surface, and the first member of the center coupler includes an upper surface and a lower surface respectively opposite to a top surface and a bottom surface of the central chamber, the center sliding Supporting means comprising a top surface of the central chamber and an upper surface of the first member of the central coupling, and a bottom surface of the central chamber and a first member of the central coupling A bearing between the lower surfaces that allows relative rotation.

Preferably, the peripheral chamber includes a top surface and a bottom surface, and the first member of the peripheral coupler includes upper and lower surfaces respectively opposite to a top surface and a bottom surface of the peripheral chamber, the peripheral sliding Supporting means for the portion including the peripheral chamber A bearing that allows relative rotation between the top surface and the upper surface of the first member of the peripheral coupler and between the bottom surface of the peripheral chamber and the lower surface of the first member of the peripheral coupler.

Preferably, the inner surface of the center cylinder and the outer peripheral surface of the center sliding portion are cylindrical surfaces, and the supporting device of the center sliding portion further includes an inner surface of the center cylinder and an outer peripheral surface of the center sliding portion Between the bearings that allow relative rotation.

Preferably, the supporting means of the peripheral sliding portion further includes a bearing for allowing relative rotation between an inner surface of the mounting hole and an outer surface of an adjacent inner cylinder.

Preferably, the output shaft is connected to an energy storage device.

The wind power generator according to the present invention has the following advantages:

1. The ability to transfer wind energy obtained from the top of the tower to the ground or any desired height, thus enabling the wind turbine of the present invention to provide wind energy to any suitable energy-using equipment, including generators.

2. Since the machine head mainly includes the input spindle and no longer includes the generator part, the weight of the machine head is greatly reduced, which not only reduces the requirement for the rotating support device, but also can be used in the upwind type wind turbine. The wind/wind device can complete the wind on its own.

3. Since the generator can be fixed in any desired position, for example, cable and twist cable protection are no longer required.

4. Since the input shaft and the output shaft have different phase segments, the power can be transmitted down at different stages at the same time. Therefore, the impact on the output shaft is reduced, and the power transmission and output are very smooth. DRAWINGS

1 is a schematic cross-sectional view of a wind power generator in accordance with one embodiment of the present invention. 2 is a schematic cross-sectional view of a coupler assembly in accordance with one embodiment of the present invention. 3 is a schematic plan view of a cylinder block in accordance with one embodiment of the present invention.

Figure 4 is a schematic cross-sectional view of the cylinder of Figure 3 taken along line IV-IV.

Figure 5 is a schematic perspective view of a first member of a center coupler in accordance with one embodiment of the present invention. Figure 6 is a schematic perspective view of a center sliding portion in accordance with one embodiment of the present invention. Figure 7 is a schematic cross-sectional view of the center sliding portion of Figure 6 taken along VII-VII. Figure 8 is a schematic perspective view of a first member of a peripheral coupler in accordance with one embodiment of the present invention.

Figure 9 is a schematic cross-sectional view of the first member of Figure 8 taken along IX-IX.

Figure 10 is a schematic perspective view of a peripheral sliding portion in accordance with one embodiment of the present invention. Figure 11 is a schematic cross-sectional view of the peripheral sliding portion of Figure 10 taken along line XI-XI. Figure 12 is a schematic plan view of a peripheral sliding cover in a power transmission system in accordance with one embodiment of the present invention. detailed description

The principles and specific embodiments of the present invention are described below with reference to the drawings.

Fig. 1 schematically shows a wind turbine according to an embodiment of the present invention. The wind turbine according to the present invention comprises a tower 1 set up in a vertical direction and a head 2 extending in a horizontal direction on the top end of the tower 1. The wind energy received by the wind wheel (not shown) is passed down by the wind turbine (see below) according to the invention to a generator or other energy-using device (not shown) located at any desired height, including the ground. In Figure 1, the tower structure and the nacelle of the nose are indicated by dashed lines. The wind turbine of the present invention is constructed when the power generated by the wind turbine is transmitted to the generator for power generation via a power transmission system (shown in solid lines).

In the present invention, terms indicating orientation, such as "horizontal", "vertical", "upper",

"Bottom" and the like are only for the actual use state of the wind turbine, and only represent the approximate orientation, not absolute. For example, when the horizontal axis wind turbine is working, the rotating main shaft and the imaginary horizontal line will form a certain elevation angle. The term "horizontal" as used in the present invention includes the case where the main shaft has an elevation angle. Similarly, the term "vertical" merely refers to a direction generally perpendicular to the ground, including a direction at an angle to the direction perpendicular to the ground.

The tower 1 can be any form of tower known in the art, such as a reinforced concrete construction or a steel frame construction. More than one floor or similar support structure 1 1 is formed in the tower 1 for forming an equipment room.

As shown in FIG. 1, a power transmission system according to an embodiment of the present invention includes an input. The shaft 50, the upper motion converting device 60, the coupler assembly 100, the lower motion converting device 70, and the output shaft 80.

The input shaft 50 can be supported in the nacelle 20 by rolling bearings or plain bearings in various rotational supports known in the art to form the handpiece 2 of the present invention. The nacelle 20 is mounted on the top end of the tower 1 via a rotary support device 3 so as to be able to adapt to the wind direction and swing around its swing axis (dotted line in Fig. 1) 21. The rotary support device 3 can be selected from any type of rotary support device known in the art depending on the weight of the handpiece 2 and other design requirements. Since the input shaft 50 is mainly in the nacelle 20, and there is no generator and related components in the conventional handpiece, the weight of the handpiece 2 of the present invention is greatly reduced compared with the conventional handpiece, thereby rotating the support device and lifting The requirements of the equipment are correspondingly significantly reduced, and simpler wind and wind turbines (eg tail rudders) can be omitted or used.

The front end of the input shaft 50 (the left end in Fig. 1) is connected to the wind wheel for receiving wind energy from a wind wheel (not shown) to rotate about an axis extending in the horizontal direction. Thus, the input shaft 50 can be rotated about its axis on the one hand, and can be swung around the swing axis 21 of the nacelle 20 on the other hand. It will be understood by those skilled in the art that in the present invention the terms "rotation" and "swing" are not substantially different and may be interchanged. Here, for the convenience of description, a generally continuous rotation like a shaft is referred to as "rotation", and a normally intermittent reciprocating rotation like a nacelle is referred to as "swinging".

The output shaft 80 is not in the machine 20, but can be placed at any predetermined position of the tower 1. The predetermined position may be any desired height below the nacelle 20. In Fig. 1, the output shaft 80 is rotatably supported on the floor panel 11 by means of a rotary support means known in the art. The output of the output shaft 80 can be directly coupled to a generator (not shown) or can be coupled to the generator via a drive train known in the art. Thus, in the wind power generator according to the present invention, the generator can be separated from the machine 20 and placed in any desired position. From the standpoint of installation and maintenance, the generator is preferably mounted at a height not higher than a predetermined position at which the output shaft 80 is located.

Since the wind energy obtained from the top of the tower 1 is transmitted to any desired height or even the ground, the wind turbine of the present invention is thus enabled to provide wind energy to any suitable energy-using equipment including the generator. Moreover, since the generator can be fixed in any desired position, Therefore, for example, cable and twist cable protection devices are no longer needed.

Both the input shaft 50 and the output shaft 80 include at least two phase segments that are different in phase along the respective axis directions. The shaft segment on the input shaft 50 is an input shaft segment, and the shaft segment on the output shaft 80 is an output shaft segment. The shaft segment and the output shaft segment correspond to each other in phase. In the present invention, the "shaft segment" means a part of the shaft; the so-called "phase difference" means that the different shaft segments are located at different angular positions along the rotation direction of the shaft as viewed in the axial direction. Preferably, the shaft segments on the shaft are equiangularly distributed at 360 as viewed in the axial direction. On the circumference, the equal phase distribution. This distribution of the shaft segments facilitates the smooth transfer of power.

In the embodiment shown in FIG. 1, the input shaft 50 and the output shaft 80 are both crankshafts, the input shaft segment includes journals 51, 52, 53 on the input shaft 50, and the output shaft segment includes a journal 81 on the output shaft 80, 82, 83. Wherein, the journals 52 and 82 are central journals, which are respectively upwardly higher than the axes of the input shaft 50 and the output shaft 80 in Fig. 1; in addition, the journals 51 and 53 and the journals 81 and 83 are respectively opposed to the central journal 52 and 82 or the pitch axis 21 is symmetrically distributed, which is lower in FIG. 1 than the axes of the input shaft 50 and the output shaft 80, respectively. Thus, the journal 51 ( 53 ) of the input shaft 50 and the journal 52 are 180. For the isophase distribution, the journal 81 (83) and journal 82 of the output shaft 80 are also 180. Equal phase distribution. The journals 51, 52, 53 of the input shaft 50 and the journals 81, 82, 83 of the output shaft 80 are generally symmetrically distributed with respect to the pivot axis 21, respectively.

Although FIG. 1 shows that the input shaft 50 and the output shaft 80 each have three journals, those skilled in the art can understand that, for example, in order to transmit power more smoothly, the two shafts can have five corresponding ones each ( With a phase distribution of 120. Angular, 7 (with a phase distribution of 90 degrees, etc.) and even more journals. Preferably, the journals of each shaft are generally symmetrically distributed with respect to the swivel axis 21, with a central journal located at the center of symmetry, the other journals being paired in the same phase and symmetrically distributed over the central journal or pendulum Both sides of the axis of rotation.

A coupler assembly in accordance with one embodiment of the present invention will now be described with reference to Figures 2-12.

100.

The coupler assembly 100 shown in Figure 2 has a central axis 102 (shown in phantom indicia). When the coupler assembly 100 is installed into the wind turbine shown in FIG. 1, the central axis 102 coincides with the swing axis 21 of the nacelle 20. Around the central axis 102, a centrally located central coupler 160 and at least one peripheral coupler 140 at the periphery are disposed concentrically. Although only one peripheral coupler 140 is shown in the drawings, it will be apparent to those skilled in the art after reading this disclosure that any desired number of peripheral couplers of the same construction as the peripheral coupler 140 can be provided. The number of couplers (including the center coupler and the peripheral coupler) corresponds to the different number of phases of the shaft segments on the input shaft 50 or the output shaft 80.

The center coupler 160 includes a first member 161 and a second member 162 that are joined together and can be integrally translated in the direction of the central axis 102, wherein the first member 161 is also capable of being centered about the central axis relative to the second member 162 102 swings.

The peripheral coupler 140 includes a first member 141 and a second member 142 that are joined together and can be integrally translated in the direction of the central axis 102, wherein the first member 141 can be adjacent to the second member 142 The internal coupling swings. In the illustrated embodiment, the adjacent inner coupler of the peripheral coupler 140 is the center coupler 160. In the case of more than two peripheral couplers, the adjacent inner coupler of one peripheral coupler may also be another peripheral coupler that is closer to the central axis 102 but adjacent. Those skilled in the art will appreciate that the terms "inner", "outer", "peripheral" or similar terms used in the present invention are relative to the central axis 102 (or the axis of rotation 21), near the central axis. For "inside", leave the center axis as "outside" or "periphery".

Since the first member 161 or 141 can be integrally translated in conjunction with the second member 162 or 142 while being able to swing relative to the second member 162 or 142, when the first member 161 or 141 is translated and pendulum When turning, the second member 162 or 142 is only translational.

The coupler assembly 100 also includes a cylinder assembly 1 10. 3 and FIG. 4, wherein FIG. 3 is a top plan view of a cylinder assembly 1 10 according to an embodiment of the present invention, and FIG. 4 is a cross-sectional view of the cylinder assembly 110 of FIG. 3 taken along IV-IV.

The cylinder assembly 110 has a central axis that is the central axis 102 of the coupler assembly 100. The cylinder assembly 110 includes at least one rainbow disposed concentrically about the central axis 102: a centrally located central rainbow 112 and a peripheral rainbow 114 at the periphery. Wherein, the annular central rainbow wall 1 16 defines a central rainbow 1 12 , and the inner surface 117 and the outer surface 118 of the central rainbow wall 116 form the inner and outer surfaces of the central cylinder 112. Annular peripheral cylinder wall 120 Around and concentric with the central cylinder wall 1 16 , a peripheral cylinder 114 concentric with the central cylinder 112 is defined. The inner surface 121 and the outer surface 122 of the peripheral rainbow wall 120 form the inner and outer surfaces of the peripheral rainbow 114.

The cylinder assembly 110 may be integrally formed by a casting technique, or a cylindrical center cylinder wall and a peripheral cylinder wall may be separately manufactured, and then they are concentrically fixed to a support member. This support member may be the floor panel 11 of the tower 1.

The center coupler 160 is mounted in the center cylinder 1 12, wherein the second member 162 is slidable along the central rainbow 12 in the direction of the central axis 102, i.e., guided by the inner surface 117 of the central rainbow wall 116. A peripheral coupler 140 is mounted in the peripheral cylinder 114, wherein the second member 142 is slidable along the peripheral cylinder 1 14 in the direction of the central axis 102, i.e., guided by the inner surface 121 of the peripheral cylinder wall 120. Since the second member of each coupler is in a sliding fit relationship with the inner surface of the corresponding cylinder wall along the central axis, the present invention has no limitation on the specific shape of the inner surface of the second member and the cylinder wall, as long as it can be realized along the center. The invention can be realized by the sliding fit function of the axis. The second member and the inner surface of the cylinder wall are preferably cylindrical if the process is simple.

In the embodiment illustrated in Figure 2, the first member 181 of the peripheral coupler 180 is pivotable relative to the second member 182 about the outer surface of the adjacent inner cylinder. In this example, the inner cylinder adjacent to the peripheral coupler 180 is the center cylinder 1 12 . Those skilled in the art will appreciate that there may be a number of cylinders corresponding to the number of couplers. When there are more than two peripheral cylinders, the inner cylinder adjacent to the peripheral coupler may also be a peripheral cylinder that is adjacent to the central axis but adjacent to other peripheral couplers.

To facilitate the pivoting of the first member 181 of the peripheral coupler 180 about the adjacent inner cylinder, the other cylinders located within the outermost cylinder have a cylindrical outer surface. In the illustrated embodiment, the perimeter rainbow 114 is located at the outermost extent, and the central rainbow 112 located within the perimeter rainbow 114 has a cylindrical outer surface. It will be understood by those skilled in the art that in the case where there are more than two peripheral cylinders, the center cylinder and not the outermost peripheral cylinder have a cylindrical outer surface. These cylindrical outer surfaces serve as rotational support for the second member of the peripheral cylinder. Those skilled in the art will appreciate that bearings may be provided between the peripheral member of the peripheral cylinder and the corresponding cylindrical outer surface, such as a rolling bearing such as a ball or a roller, or a hydraulic sliding bearing. This Some of the rotational support techniques are themselves well known in the art and are not part of the present invention.

The upper end of each cylinder is open for mounting the corresponding coupling from above. A connecting portion through hole 104 is formed at the lower end of the cylinder. The connecting through hole 104 should be large enough not to interfere with the movement of the lower connecting portion of the coupler and the lower motion converting means (described below).

Referring to Figures 2, 6 and 7, there is shown a second member 162 of a center coupler in accordance with one embodiment of the present invention, and Figures 6 and 7 are perspective views showing a lower portion and an upper portion of the second member 162, respectively. The second member 162 includes a sliding portion 163 that is adapted to be slidably engaged with the inner surface of the central rainbow wall 116 in the direction of the central axis 102. As just one example, the sliding portion 163 shown in the drawing is cylindrical. The sliding portion 163 is hollow, forming a chamber 164 having a top portion 165 above the chamber 164 and a bottom portion 166 below. The top surface 165 and the bottom 166 face the surface of the chamber 164 are the top surface 167 and the bottom surface 168 of the chamber 164, respectively. At least one of the top 165 and the bottom 166 may be in the form of a separate cover that can be secured to the sliding portion 163 after the first member 161 is mounted in the chamber 164.

Figure 5 illustrates a first component of a center coupler in accordance with one embodiment of the present invention

A perspective view of the 161. The first member 161 includes a swivel portion 169 that can be designed to be any shape that can be swung in the chamber 164 of the second member 162. The swivel portion 169 has an upper surface 170 and a lower surface 171 that face the top surface 167 and the bottom surface 168 of the chamber 164, respectively.

The center coupler 160 also includes a support member within the chamber for limiting the first member

Movement of 161 in the chamber 164 in the direction of the central axis 102 while allowing the first member 161 to pivot about the central axis 102 within the chamber 164. As an example, the support member of the center coupler 160 includes a bearing 172 between the top surface 167 of the chamber 176 and the upper surface 170 of the swing portion 163 and a bottom surface 168 and a swivel portion 163 of the center chamber 176. A bearing 173 between the lower surface 171 (see Fig. 2). Preferably, the side surface of the swing portion 163 and the inner side surface of the center chamber 176 are both cylindrical, and a bearing (not shown) capable of allowing relative rotation is further disposed between the opposite side surfaces.

In order to be coupled to the upper motion converting device 60 and the lower motion converting device 70, the upper surface 170 of the swinging portion 169 of the first member 161 is formed with an upper connecting portion 174, the second member The bottom portion 166 of the sliding portion 163 of 162 is formed with a lower connecting portion 175. The upper and lower connecting portions 174, 175 may have any configuration suitable for connection with the upper and lower motion converting devices 60, 70. As an example only, the connecting portions shown in the drawings are all columnar, and an upper connecting through hole 176 and a lower connecting through hole 177 suitable for the passage of the pin are formed at the end. This connection structure is suitable for articulation with a motion conversion device in the form of a link. Connection

The positions of 174, 175 are designed such that when the center coupler 160 is installed in the center cylinder 160, the connecting portions 174, 175 are on the central axis 102, corresponding to the center of the input shaft 50, the output shaft 80 on the swing axis, respectively. Shaft segments 52, 82. Further, at the top 165 of the sliding portion 163 of the second member 162, an upper mounting through hole 178 having a size and position suitable for the upper connecting portion 174 on the first member 161 to pass therethrough is formed.

Those skilled in the art will appreciate that the upper attachment portion 174 may be integrally formed with the swivel portion 169, such as by casting; it may be fabricated separately and then fixedly assembled together. Similarly, the lower connecting portion 175 and the sliding portion 163 may also be integral or separate.

In some of the described situations, in order to distinguish from the components of the peripheral coupler, the various components of the center coupler described above may be preceded by a "center", and the components of the peripheral coupler described below may be added before On the "periphery".

An exemplary structure of the peripheral coupler 180 according to an embodiment of the present invention will be described below with reference to Figs. 2 and 8 to 12.

8 and 9 are schematic perspective and cross-sectional views, respectively, of the first member 181 of the peripheral coupler 180. The first member 181 includes a swinging portion 183, and the swinging portion 183 is formed with a cylinder bore 184 which is sized and shaped to fit the outer surface of the adjacent inner cylinder (in this example, the center rainbow 1 12 The surface 118) is relatively rotatable (i.e., clearance fit) or adapted to provide a relatively rotatable bearing therebetween. Due to the cylinder bore 184, the swivel portion 183 has an annular upper surface 185 and a lower surface 186. An upper connecting portion 188 having an upper connecting through hole 187 is formed in the upper surface 185. Preferably, there are two upper connecting portions 188, the positions of which are designed to be symmetrically distributed with respect to the central axis 102 when the first member 181 is mounted in the peripheral cylinder 114, corresponding to the shaft segment symmetrically distributed on the input shaft 50 with respect to the pivot axis. 51 and 53.

10 and 11 are schematic perspective views of the second member 182 of the peripheral coupler 180, respectively. View and section view. The second member 182 includes a sliding portion 189 that is externally shaped and sized to slidably engage the inner surface 121 of the peripheral rainbow 136 in the direction of the central axis 102. The outer shape of the sliding portion 189 is preferably cylindrical in view of the process. The inside of the sliding portion 189 is empty, forming a chamber 190. The chamber 190 is also preferably cylindrical in view of the process. The top 191 of the chamber 190 is open for mounting the swivel portion 183 from above. The bottom 192 of the chamber 190 is formed with an aperture 193 that is sized and shaped to allow adjacent internal rainbows (in this case, the center cylinder 1 12) to pass freely (i.e., the cylinder and cylinder bores are clearance fit). Due to the cylinder bore 193, the bottom 192 is annular. A lower connecting portion 194 having a lower connecting through hole 195 is formed under the bottom portion 192. Preferably, there are two lower connecting portions 194, the positions of which are designed to be symmetrically distributed with respect to the central axis 102 when the sliding portion 189 is mounted in the peripheral cylinder 114, corresponding to the shaft segment 81 symmetrically distributed on the output shaft 80 with respect to the pivot axis. And 83.

Fig. 12 schematically shows a sliding portion cover 196 that can be fixedly mounted to the top 191 of the chamber 190 after the swing portion 183 is mounted in the chamber 190. The cover 196 is formed with a cylinder bore 197 that is shaped and sized to allow adjacent internal rainbows (center cylinder 1 12 in this example) to pass freely. Also formed on the cover 196 is a connecting portion through hole 198 that allows the upper connecting portion 188 on the swing portion 183 to pass freely.

It will be understood by those skilled in the art that the bottom portion 192 may also be separate from the sliding portion 189 and may be fixedly mounted to the sliding portion 189 after the swing portion 183 is mounted in the chamber 190. In this case, the cover 196 may also be integral with the top 191 of the sliding portion 189.

In the peripheral coupler 180, a bearing 142 allowing relative rotation, a lower surface of the bottom portion 192 and a lower surface of the swing portion 183 may be disposed between the lower surface (not shown) of the cover 196 and the upper surface 185 of the swing portion 183. A bearing 143 allowing relative rotation can be provided between the 186s. Preferably, a bearing (not shown) allowing relative rotation is further provided between the rainbow hole 193 of the swinging portion 183 and the adjacent inner rainbow outer surface. These relatively rotatable bearings constitute a support member for the peripheral coupler 140 for restricting movement of the first member 141 in the direction of the central axis 102 within the chamber 190 while allowing the first member 141 to surround the chamber 190. The central axis 102 is swung.

According to an embodiment of the present invention, the upper and lower motion converting devices 60, 70 are A link device is formed. As shown in FIG. 1, the first end and the second end of the upper center link 61 are respectively connected to the central shaft section 52 of the input shaft 50 and the central upper connecting portion 174 of the center coupler 160, and the first end of the upper peripheral link 62. The shaft end 51 ( 53 ) of the input shaft and the peripheral upper connecting portion 188 of the peripheral coupler 140 are respectively connected to the second end. The first end and the second end of the lower center connecting link 71 are respectively connected to the central shaft section 82 of the output shaft 80 and the central lower connecting portion 175 of the center coupler 160, and the first end and the second end of the lower peripheral link 72 are respectively A shaft segment 81 (83) of the output shaft and a peripheral lower connecting portion 194 of the peripheral coupler 140 are connected. The upper center link 61 and the upper peripheral link 62 are also referred to as upper links, and the lower center link 81 and the lower peripheral link 82 are also referred to as lower links.

The input shaft 50, the upper motion converting device 60, the coupler assembly 100, and the lower motion converting device 70 constitute the power transmission system of the present invention.

Next, the working process of the present invention will be described by taking the wind turbine shown in Fig. 1 as an example.

When the wind wheel rotates under the action of the wind, the wind energy is transmitted to the input shaft 50 on the one hand, and the input shaft 50 is rotated about its axis; on the other hand, the nacelle 20 is swung around the swing axis 21, thereby driving the input shaft 50 to also The swing axis 21 is swung.

The rotation and swing of the input shaft 50 are transmitted to the upper links 61 and 62 connected thereto such that the second ends of the upper links 61 and 62 are translated along the swing axis 21 while also swinging about the swing axis 21 .

The second ends of the upper links 61 and 62 transmit their translational and swiveling motions through the upper joints 174 and 188 to the swivel portions 169 and 183 in the coupler connected thereto such that the swivel portion 169 is on the one hand The sliding portion 163 swings, on the other hand, causes the sliding portion 163 to slide along the center cylinder 112; at the same time, the swinging portion 183 swings around its adjacent inner cylinder 12, and on the other hand, the sliding portion 189 The peripheral cylinder 114 slides. Thus, through the coupler assembly 100, the swing motion is filtered out and only the translation is continued downward.

The sliding of the sliding portions 163 and 189 along the corresponding cylinders (i.e., translation) is transmitted to the lower links 71 and 72 connected thereto such that the first ends of the lower links 71 and 72 are translated along the swing axis. Since the second ends of the lower links 71 and 72 are coupled to the shaft segments 81, 82, 83 of the output shaft 80, the output shaft 80 is rotated about its axis by the first and second ends of the lower links 71 and 72. Turn. The rotation of the output shaft 80 can be supplied to the energy-using device, for example, to the hair supply The motor is used to generate electricity.

The invention has been described in detail above with reference to the accompanying drawings. However, it is to be understood by those skilled in the art that the foregoing detailed description is for the purpose of illustration and description. The scope of the invention is defined only by the claims. It will be apparent to those skilled in the <RTIgt;the</RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; For example, an energy storage device such as a weight, a flywheel, or the like may be added to the output shaft 80 to make the rotation of the output shaft 80 smoother. For example, the cylinder assembly is not required, but rather the first member can be swung and slid directly about the outer surface of the second member of the adjacent inner coupler. This is especially true where the sliding stroke of the second member is small.

Claims

Claim

A coupler assembly, characterized in that the coupler assembly has a central axis and includes a centrally located central coupler disposed concentrically about the central axis and at least one peripheral coupler at the periphery Wherein the center coupler and the peripheral coupler each include a first member and a second member that are coupled together and are capable of being integrally translated in the direction of the central axis, wherein

The first member of the center coupler is pivotable about the central axis relative to the respective second member,

The first member of the peripheral coupler is pivotable relative to the respective second member about the adjacent inner coupler.

2. The coupler assembly of claim 1 , wherein the coupler assembly further comprises a cylinder assembly, the cylinder assembly including at least one cylinder disposed concentrically about the central axis, at most a cylinder inside the outer cylinder has a cylindrical outer surface, and the center coupler and the second member of the peripheral coupler are slidably disposed in the at least one cylinder along the central axis direction, the periphery The first member of the coupler swings about the outer surface of the adjacent inner cylinder.

3. The coupler assembly of claim 2, wherein

The second member of the center coupler includes a central slide portion slidably mountable within a central rainbow of the at least one rainbow, the central slide portion including:

The second member of the at least one peripheral coupler includes a peripheral sliding portion slidably mountable in a peripheral cylinder of the at least one cylinder, the peripheral sliding portion comprising: a cylinder bore, an adjacent inner cylinder is mounted in the iris hole in a clearance fit manner, and a peripheral chamber is formed around the cylinder bore, and the first member of the peripheral coupler is swingably received in the In the peripheral chamber, and

a support member, located in the peripheral chamber, capable of restricting movement of the first member of the peripheral coupler in the peripheral chamber along the central axis while allowing the corresponding peripheral coupler A first member is swung around the outer surface of an adjacent inner cylinder within the peripheral chamber.

4. The coupler assembly of claim 3, wherein

The central chamber includes a top surface and a bottom surface, the first member of the center coupler including an upper surface and a lower surface opposite the top and bottom surfaces of the central chamber, respectively, the support of the central sliding portion The device includes a top surface of the central chamber and an upper surface of the first member of the center coupler, and a bottom surface of the center chamber and a lower surface of the first member of the center coupler Bearings that allow relative rotation,

The peripheral chamber includes a top surface and a bottom surface, and the first member of the peripheral coupler includes upper and lower surfaces respectively opposite the top and bottom surfaces of the peripheral chamber, the support of the peripheral sliding portion The device includes a top surface of the peripheral chamber and an upper surface of the first member of the peripheral coupler, and a bottom surface of the peripheral chamber and a lower surface of the first member of the peripheral coupler A bearing that allows relative rotation.

5. The coupler assembly according to claim 4, wherein an inner surface of the center cylinder and an outer peripheral surface of the center sliding portion are cylindrical surfaces, and the supporting device of the center sliding portion further includes A bearing that allows relative rotation between the inner surface of the center cylinder and the outer peripheral surface of the center sliding portion.

6. The coupler assembly according to claim 4, wherein the support means of the peripheral sliding portion further comprises a relative rotation between an inner surface of the mounting hole and an outer surface of an adjacent inner cylinder Bearings.

7. A power transmission system, characterized by comprising:

An input shaft for receiving power, the input shaft being rotatable about an axis of the input shaft Rotating and having a swing axis extending in a direction different from an axial direction of the input shaft, the input shaft being swingable about the swing axis, the input shaft including along the At least two input shaft segments having different phases in the axial direction of the input shaft;

At least two upper motion converting devices, each of the upper motion converting devices having a first end and a second end, the first end and a respective one of the at least two input shaft segments of the input shaft Connected, for converting rotation of the input shaft about an axis of the input shaft to translation of the second end along the swing axis direction and the upper motion conversion device about the swing The rotation of the axis;

a coupler assembly including a centrally located central coupler disposed about the swing axis in a concentric manner and at least one peripheral coupler at the periphery, wherein the center coupler and the peripheral coupler are each A first member and a second member that are coupled together and are capable of translationally integrally along the swing axis, the first member of the center coupler being rotatable relative to the respective second member The axis swings, the first member of the peripheral coupler is rotatable relative to the corresponding second member about the adjacent inner coupler, the first member of each of the center coupler and the peripheral coupler Connected to the second end of the corresponding upper motion conversion device,

At least two lower motion converting devices, each of the lower motion converting devices having a first end and a second end, the first end of the lower motion converting device being respectively associated with the center coupler and the peripheral coupler Corresponding one of the second members is connected, the second end of the lower motion converting device is respectively connected to a corresponding one of the at least two output shaft segments of the output shaft, thereby enclosing the second member of the coupler The translation of the direction of the swing axis is converted into rotation of the output shaft about the swing direction.

8. The power transfer system of claim 7 wherein: said coupler assembly further comprises a cylinder assembly, said cylinder assembly comprising a concentric manner At least one cylinder disposed on the swing axis, the cylinder located inside the outermost cylinder has a cylindrical outer surface, and the second member of each of the center coupler and the peripheral coupler is capable of following the swing axis Slidably disposed within the at least one cylinder, respectively, and the first member of the peripheral coupler is rotatable about an outer surface of an adjacent inner cylinder.

9. The power transmission system of claim 8 wherein:

a support member, located in the central chamber, capable of restricting movement of the first member of the center coupler in the direction of the swing axis within the central chamber while allowing the first member of the center coupler to be Swinging in the central chamber about the swing axis;

a support member, located in the peripheral chamber, capable of restricting movement of the corresponding first member of the peripheral coupler in the peripheral chamber along the swing axis direction while allowing the corresponding peripheral joint to be coupled The first member of the device swings around the outer surface of the adjacent inner cylinder within the peripheral chamber.

10. The power transmission system of claim 9 wherein:

The central chamber includes a top surface and a bottom surface, the first member of the center coupler including an upper surface and a lower surface opposite the top and bottom surfaces of the central chamber, respectively, the support of the central sliding portion The device includes a top surface between the top surface of the central chamber and an upper surface of the first member of the central coupler, and a bottom surface of the central chamber a bearing that allows relative rotation between the face and the lower surface of the first member of the center coupler,

The power transmission system according to claim 10, wherein an inner surface of the central rainbow and an outer circumferential surface of the central sliding portion are cylindrical surfaces, and the supporting device of the central sliding portion further includes A bearing that allows relative rotation between the inner surface of the center cylinder and the outer peripheral surface of the center sliding portion.

12. The power transmission system according to claim 10, wherein the supporting means of the peripheral sliding portion further comprises a relative rotation between an inner surface of the mounting hole and an outer surface of an adjacent inner cylinder Bearings.

The power transmission system according to any one of claims 7 to 12, wherein the input shaft and the output shaft are crankshafts, and the input shaft segment and the output shaft segment are on a crankshaft Curved neck.

14. The power transmission system according to claim 13, wherein a curved neck of the input shaft is symmetrically distributed with respect to the swing axis, and a center curved neck is formed at the swing axis, the input a central curved neck of the shaft is coupled to the first member of the center coupler via a respective upper motion converting device

The curved neck of the output shaft is symmetrically distributed with respect to the swing axis in the same manner as the curved neck of the input shaft, and a central curved neck is formed at the swing axis, and the center curve of the output shaft The neck is coupled to the second member of the center coupler via a corresponding lower motion conversion device.

15. The power transmission system according to claim 14, wherein the curved necks of the input shaft and the output shaft are the same as viewed along an axis of the input shaft and an axial direction of the output shaft, respectively. Means around the axis of the input shaft and the output The axes of the shafts are distributed at equal angles.

16. The power transmission system according to claim 1, wherein the upper motion converting device and the lower motion converting device are link devices.

17. The power transmission system according to claim 13, wherein the upper motion converting device and the lower motion converting device are link devices.

18. The power transmission system according to claim 1, wherein the output shaft is connected to an energy storage device.

19. A wind turbine comprising:

a tower that is set up in a vertical direction,

a nacelle rotatably disposed at a top end of the tower about a pendulum axis extending in a vertical direction, and

a wind wheel, which is rotatably disposed on the nacelle under the action of wind

The wind turbine further includes:

An input shaft coupled to the wind wheel for receiving power from the wind wheel, the input shaft being rotatably supported in the nacelle about an axis extending in a horizontal direction of the input shaft, and capable of being The nacelle swings about the swing axis together, the input shaft includes at least two input shaft segments that are distributed along an axial direction of the input shaft; an output shaft for outputting power, the output a shaft located at a predetermined position of the tower, the predetermined position being lower than a position of the nacelle, the output shaft rotating along an axis extending in a horizontal direction of the output shaft, the output shaft including along the At least two output shaft segments having different phases in the axial direction of the output shaft, the at least two output shaft segments corresponding in phase to the at least two input shaft segments;

At least two upper motion converting devices, each of the upper motion converting devices having a first end and a second end, the first end and a respective one of the at least two input shaft segments of the input shaft Connected, for converting rotation of the input shaft about an axis of the input shaft into translation of the second end in the direction of the swing axis and the upper motion conversion device around the pendulum Swing in the direction of the axis of rotation;

a coupler assembly disposed on the tower between the nacelle and the predetermined position, including a centered center disposed concentrically about the swing axis a coupler and at least one peripheral coupler at the periphery, wherein the center coupler and the peripheral coupler each include a first member that is coupled together and that is capable of translationally integrally along the swing axis And a second member, the first member of the center coupler being swingable about the swing axis with respect to the corresponding second member, the first member of the peripheral coupler being capable of being wound relative to the corresponding second member An adjacent inner coupler swings, and a first member of each of the center coupler and the peripheral coupler is coupled to a second end of the corresponding upper motion conversion device,

20. A wind power generator, comprising:

A wind turbine according to claim 19, and

A generator, located below the machine, is capable of receiving power output from the output shaft and generating electrical energy.