A wind turbine nacelle with a push-pull structure

Abstract

The present invention discloses a wind turbine nacelle cover with a push-pull structure, comprising a nacelle cover body and a push-fastening mechanism; the push-fastening mechanism is installed inside the nacelle cover body; the push-fastening mechanism comprises an annular sleeve and a fastening drive assembly; the present invention only requires hand pulling of a push-pull ring, and through the push-pull ring, a plurality of push-pull rods are driven to move axially around the outside of the annular sleeve, and when the push-pull rods move axially on the outside of the annular sleeve, the driving inclined surfaces of the push-pull rods are respectively pressed against the inclined fitting surfaces on the inner side surfaces of the driving blocks for driving, and the inclined surface pressing principle and the elastic reset principle are utilized to make the driving block at the outer end of the floating rod float radially when the push-pull rods move axially, so that the inner end of the floating rod can drive the fastening plate to extend and retract radially along the annular sleeve, so as to achieve the purpose of adjusting the fastening cable, and the adjustment is very convenient.

Description

Technical Field

[0001] The invention relates to a wind turbine nacelle cover with a push-pull structure. Background Art

[0002] Wind power generation refers to converting the kinetic energy of wind into mechanical kinetic energy, and then converting mechanical energy into electrical kinetic energy. This is wind power generation. The specific principle of wind power generation is to use wind power to drive the windmill blades to rotate, and then increase the rotation speed through the speed increaser to drive the generator to generate electricity. According to the current windmill technology, it can start generating electricity at a breeze speed of about three meters per second. Wind power generation is becoming a trend in the world because it does not require the use of fuel and does not produce radiation or air pollution. In wind power generation, the nacelle is the outer shell of the wind turbine generator, which is used to install and protect the wind turbine motor and its accessories. However, the connection cables of the battery charge controller, inverter, unloader, grid-connected controller, etc. installed inside the nacelle are not installed in an orderly and convenient positioning structure, and the space for positioning and accommodation cannot be adjusted according to the number of connection cables. Summary of the invention

[0003] In view of the above-mentioned deficiencies of the prior art, the present invention solves the problem of providing a wind turbine nacelle cover with a push-pull structure that is easy to drive.

[0004] To solve the above problems, the technical solution adopted by the present invention is as follows:

[0005] A wind turbine nacelle cover with a push-pull structure comprises a nacelle cover body and a push-fastening mechanism; the push-fastening mechanism is installed inside the nacelle cover body; the push-fastening mechanism comprises an annular sleeve and a fastening drive assembly; a plurality of floating channels are evenly arranged around the middle of the annular sleeve, and a plurality of axial clamping grooves are arranged around the outer side of one end of the annular sleeve; the fastening drive assembly comprises a push-pull ring, a push-pull rod, a driving block, a floating rod, a fastening elastic body, a fastening plate, and a telescopic soft material; a floating rod is respectively connected to the floating channel on the annular sleeve; the outer end and the inner end of the floating rod extend to the outer side and the inner side of the annular sleeve respectively; the outer ends of the floating rods are respectively connected to a driving block, and the inner ends of the floating rods are respectively connected to a fastening plate; the outer sides of the fastening plates are respectively connected to a fastening elastic body; the outer ends of the fastening elastic bodies are respectively connected Connected to the inner side of the annular sleeve, the inner end of the fastening elastomer is connected to the outer side of the fastening plate; the telescopic soft material is connected between the fastening plates installed inside the annular sleeve; the fastening plate and the telescopic soft material installed inside the annular sleeve form an annular structure; the push-pull ring is slidably sleeved on the outside around one end of the annular sleeve; a plurality of push-pull rods are evenly installed around the inner end of the push-pull ring; the inner sides of the push-pull rods are respectively provided with axial clamping teeth; the push-pull rods are slidably clamped on the axial clamping groove of the annular sleeve through the axial clamping teeth on the inner side; when the push-pull ring slides axially, it drives the end of the push-pull rod to press against the driving block at the outer end of the driving floating rod to float radially; the inner side surface of the driving block is provided with an inclined fitting surface; the end of the push-pull rod is provided with a driving inclined surface; the driving inclined surface at the end of the push-pull rod is fitted and abutted with the inclined fitting surface on the inner side surface of the driving block.

[0006] Furthermore, the other end of the annular sleeve is provided with a plurality of T-shaped slots of long strip structure along the axial direction; the T-shaped slots extend vertically and are connected to the lower end of the floating channel respectively; the inner end of the floating rod is provided with a connecting external thread; the outer side of the fastening plate is provided with a connecting internal thread hole; the fastening drive assembly also includes a plurality of T-shaped sliding clamping blocks; the T-shaped sliding clamping block is provided with a through-channel; the T-shaped sliding clamping block is respectively slidably clamped into the T-shaped slot from the other end of the annular sleeve; the inner side of the T-shaped sliding clamping block extends to the inside of the annular sleeve; the outer end of the fastening elastomer is connected to the inner side of the T-shaped sliding clamping block; the outer end of the through-channel on the T-shaped sliding clamping block is connected to the floating channel, and the inner end of the through-channel on the T-shaped sliding clamping block corresponds to the position of the connecting internal thread hole on the outer side of the fastening plate; the inner end of the floating rod passes through the floating channel of the annular sleeve and the through-channel of the T-shaped sliding clamping block in sequence and then enters the inside of the annular sleeve, and the inner end thread of the floating rod is rotatably connected to the outer connecting thread hole of the fastening plate.

[0007] Furthermore, the fastening plate is in an arc-shaped structure; a pressure pad is provided on the inner side of the fastening plate.

[0008] Furthermore, the cross section of the annular sleeve is a circular ring structure.

[0009] Furthermore, the floating channels on the annular sleeve are all opened along the radial direction of the annular sleeve.

[0010] Furthermore, the telescopic soft material is made of high-elastic rubber material.

[0011] Furthermore, a mounting ring for mounting inside the nacelle cover is provided around the outer side of the other end of the annular sleeve.

[0012] Furthermore, a hand-pull buckle body is provided in the middle of the outer end of the push-pull ring.

[0013] Beneficial Effects of the Invention

[0014] According to the present invention, only the push-pull ring is pulled by hand, and the push-pull ring drives multiple push-pull rods to move axially around the outside of the annular sleeve. When the push-pull rod moves axially on the outside of the annular sleeve, the driving inclined surfaces of the push-pull rods are pressed and driven against the inclined fitting surfaces on the inner side surfaces of the driving blocks respectively. By utilizing the inclined surface pressing principle and the elastic resetting principle, the driving block at the outer end of the floating rod is driven to float radially when the push-pull rod moves axially, so that the inner end of the floating rod can drive the fastening plate to expand and contract radially along the annular sleeve, thereby achieving the purpose of adjusting the fastening cable, and the adjustment is very convenient. The fastening plates installed inside the annular sleeve of the present invention are connected with telescopic soft materials, so that the fastening plates and telescopic soft materials installed inside the annular sleeve form an annular closed structure, which has a good separation effect on the cables. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a cross-sectional schematic diagram of the present invention.

[0016] Figure 2 It is a cross-sectional view of the annular sleeve of the present invention.

[0017] Figure 3 It is a schematic diagram of a partially enlarged cross-section of the fastening drive assembly of the present invention.

[0018] Figure 4 It is an axial schematic diagram of the present invention.

[0019] Figure 5 It is a schematic diagram of the axially partially enlarged structure of the present invention. DETAILED DESCRIPTION

[0020] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0021] like Figures 1 to 5As shown, a wind turbine nacelle with a push-pull structure comprises a nacelle cover body and a push-fastening mechanism; the push-fastening mechanism is installed inside the nacelle cover body; the push-fastening mechanism comprises an annular sleeve 1 and a fastening drive assembly 2; a plurality of floating channels 11 are evenly arranged around the middle of the annular sleeve 1, and a plurality of axial clamping grooves 13 are arranged around the outer side of one end of the annular sleeve 1; the fastening drive assembly 2 comprises a push-pull ring 26, a push-pull rod 28, a driving block 23, a floating rod 21, a fastening elastic body 24, a fastening plate 22, and a telescopic soft material 25; a floating rod 21 is respectively connected to the floating channel 11 on the annular sleeve 1; the outer end and the inner end of the floating rod 21 extend to the outer side and the inner side of the annular sleeve 1 respectively; the outer end of the floating rod 21 is respectively connected to a driving block 23, and the inner end of the floating rod 21 is respectively connected to a fastening plate 22; the outer sides of the fastening plates 22 are respectively connected to a fastening elastic body 24; the outer ends of the fastening elastic bodies 24 are connected to the annular sleeve 1 Inside, the inner end of the fastening elastic body 24 is connected to the outer side of the fastening plate 22; the fastening plates 22 installed inside the annular sleeve 1 are connected to the telescopic soft material 25; the fastening plates 22 installed inside the annular sleeve 1 and the telescopic soft material 25 form an annular structure; the push-pull ring 26 is slidably sleeved on the outer side around one end of the annular sleeve 1; a plurality of push-pull rods 28 are evenly installed around the inner end of the push-pull ring 26; the inner sides of the push-pull rods 28 are respectively provided with axial engaging teeth 282; the push-pull rods 28 pass through The inner axial engaging teeth 282 slide and engage in the axial engaging groove 13 of the annular sleeve 1; when the push-pull ring 26 slides axially, it drives the end of the push-pull rod 28 to press against the driving block 23 at the outer end of the driving floating rod 21 to float radially; the inner side surface of the driving block 23 is provided with an inclined fitting surface 231; the end of the push-pull rod 28 is provided with a driving inclined surface 281; the driving inclined surface 281 at the end of the push-pull rod 28 is fitted and abutted with the inclined fitting surface 231 on the inner side surface of the driving block 23.

[0022] like Figures 1 to 5As shown, further, the other end of the annular sleeve 1 is provided with a plurality of T-shaped slots 12 of long strip structure along the axial direction; the T-shaped slots 12 extend vertically and are connected to the lower end of the floating channel 11; the inner end of the floating rod 21 is provided with a connecting external thread; the outer side of the fastening plate 22 is provided with a connecting internal thread hole 222; the fastening drive assembly 2 also includes a plurality of T-shaped sliding clamping blocks 27; the T-shaped sliding clamping blocks 27 are provided with a through-channel 271; the T-shaped sliding clamping blocks 27 are respectively slidably clamped into the T-shaped slots 12 from the other end of the annular sleeve 1; the inner side of the T-shaped sliding clamping blocks 27 The outer end of the fastening elastic body 24 is connected to the inner side of the T-shaped sliding clamp block 27; the outer end of the through-channel 271 on the T-shaped sliding clamp block 27 is connected to the floating channel 11, and the inner end of the through-channel 271 on the T-shaped sliding clamp block 27 corresponds to the position of the connecting inner threaded hole 222 on the outer side of the fastening plate 22; the inner end of the floating rod 21 passes through the floating channel 11 of the annular sleeve 1 and the through-channel 271 of the T-shaped sliding clamp block 27 in sequence and enters the annular sleeve 1, and the inner end of the floating rod 21 is threadedly connected to the outer connecting threaded hole 222 of the fastening plate 22. Further, the fastening plate 22 is an arc-shaped structure; the inner side of the fastening plate 22 is provided with a pressure pad 221. Further, the cross section of the annular sleeve 1 is a circular ring structure. Further, the floating channels 11 on the annular sleeve 1 are all opened along the radial direction of the annular sleeve 1. Further, the telescopic soft material 25 is made of high elastic rubber. Furthermore, a mounting ring 14 for mounting inside the nacelle cover is provided around the outer side of the other end of the annular sleeve 1. Furthermore, a hand-pull buckle body 261 is provided in the middle of the outer end of the push-pull ring 26.

[0023] In the present invention, only the push-pull ring 26 is pulled by hand, and the push-pull ring 26 drives multiple push-pull rods 28 to move axially around the outside of the annular sleeve 1. When the push-pull rod 28 moves axially on the outside of the annular sleeve 1, the driving inclined surfaces 281 of the push-pull rod 28 are pressed and driven against the inclined fitting surfaces 231 on the inner side surfaces of the driving blocks 23 respectively. By utilizing the inclined surface pressing principle and the elastic reset principle, the driving block 23 at the outer end of the floating rod 21 is driven to float radially when the push-pull rod 28 moves axially, so that the inner end of the floating rod 21 can drive the fastening plate 22 to expand and contract radially along the annular sleeve 1, thereby achieving the purpose of adjusting and fastening the cable, and the adjustment is very convenient. The fastening plates 22 installed inside the annular sleeve 1 of the present invention are connected with the telescopic soft material 25, so that the fastening plates 22 and the telescopic soft material 25 installed inside the annular sleeve 1 form a ring-shaped closed structure, which has a good separation effect on the cables.

[0024] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. 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 turbine nacelle with a push-pull structure, characterized in that: It includes a cabin cover body and a pushing and fastening mechanism; the pushing and fastening mechanism is installed inside the cabin cover body; the pushing and fastening mechanism includes an annular sleeve and a fastening drive assembly; a plurality of floating channels are evenly opened around the middle of the annular sleeve, and a plurality of axial clamping grooves are arranged around the outer side of one end of the annular sleeve; the fastening drive assembly includes a push-pull ring, a push-pull rod, a driving block, a floating rod, a fastening elastomer, a fastening plate, and a telescopic soft material; a floating rod is respectively connected to the floating channels on the annular sleeve; the outer end and the inner end of the floating rod extend to the outer side and the inner side of the annular sleeve respectively; the outer end of the floating rod is respectively connected to a driving block, and the inner end of the floating rod is respectively connected to a fastening Plate; the outer sides of the fastening plates are respectively connected to a fastening elastic body; the outer ends of the fastening elastic bodies are connected to the inner sides of the annular sleeve, and the inner ends of the fastening elastic bodies are connected to the outer sides of the fastening plates; the telescopic soft material is connected between the fastening plates installed inside the annular sleeve; the fastening plates and the telescopic soft material installed inside the annular sleeve form an annular structure; the push-pull ring is slidably sleeved on the outer sides around one end of the annular sleeve; a plurality of push-pull rods are evenly installed around the inner end of the push-pull ring; the inner sides of the push-pull rods are respectively provided with axial snap-fitting teeth; the push-pull rods are slidably snap-fitted to the axial snap-fitting groove of the annular sleeve through the axial snap-fitting teeth on the inner side; when the push-pull ring slides axially, it drives the end of the push-pull rod to press against The driving block at the outer end of the driving floating rod floats radially; the inner side surface of the driving block is provided with an inclined fitting surface; the end of the push-pull rod is provided with a driving inclined surface; the driving inclined surface at the end of the push-pull rod is fitted and abutted with the inclined fitting surface on the inner side surface of the driving block; the other end of the annular sleeve is provided with a plurality of T-shaped slide grooves of long strip structure along the axial direction; the T-shaped slide grooves extend vertically and are connected to the lower end of the floating channel respectively; the inner end of the floating rod is provided with a connecting external thread; the outer side of the fastening plate is provided with a connecting internal thread hole; the fastening driving assembly also includes a plurality of T-shaped sliding clamping blocks; the T-shaped sliding clamping block is provided with a through-connection channel; the T-shaped sliding clamping block Slide and snap into the T-shaped slide groove from the other end of the annular sleeve respectively; the inner side of the T-shaped sliding clamping block extends to the inside of the annular sleeve; the outer end of the fastening elastic body is connected to the inner side of the T-shaped sliding clamping block; the outer end of the through-channel on the T-shaped sliding clamping block is connected to the floating channel, and the inner end of the through-channel on the T-shaped sliding clamping block corresponds to the position of the connecting internal threaded hole on the outer side of the fastening plate; the inner end of the floating rod passes through the floating channel of the annular sleeve and the through-channel of the T-shaped sliding clamping block in turn and then enters the inside of the annular sleeve, and the inner end thread of the floating rod is rotatably connected to the outer connecting threaded hole of the fastening plate; the fastening plate is in an arc-shaped structure; a pressure pad is provided on the inner side of the fastening plate.

2. The wind turbine nacelle with a push-pull structure according to claim 1, characterized in that: The cross section of the annular sleeve is in a circular ring structure.

3. The wind turbine nacelle with a push-pull structure according to claim 1, characterized in that: The floating channels on the annular sleeve are all opened along the radial direction of the annular sleeve.

4. The wind turbine nacelle with a push-pull structure according to claim 1, characterized in that: The telescopic soft material is made of high-elastic rubber material.

5. The wind turbine nacelle with a push-pull structure according to claim 1, characterized in that: The outer side of the other end of the annular sleeve is provided with a mounting ring for mounting inside the nacelle cover.

6. The wind turbine nacelle with a push-pull structure according to claim 1, characterized in that: A hand-pull buckle body is arranged in the middle of the outer end of the push-pull ring.

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