An adjustable bucket platform

Abstract

The application discloses an adjustable bucket platform for installing a variable pitch drive inside a hub, and relates to the technical field of wind power generation. The adjustable bucket platform comprises a bucket assembly and a pedal assembly. The bucket assembly comprises a disc seat and a pedal seat connected by a ladder. The disc seat is installed on the top disc of the hub, and the pedal seat is used for installing the pedal assembly. The pedal assembly can move relative to the hub and is used for installing the variable pitch drive. The pedal assembly is fixed on the bucket assembly and is hoisted into the hub together. The position where the variable pitch drive needs to be installed is observed. The position of the pedal assembly is ensured to be convenient for operation. After the pedal assembly installed on the pedal seat is slowly placed to be horizontal, the distance between the pedal assembly and the hub is adjusted, the variable pitch drive is installed inside the hub, and the ladder is designed to facilitate personnel to go up and down for subsequent installation operation. The pedal assembly can move relative to the hub, is transversely adjustable, and thus can solve the problems of poor universality of the hub pedal and inability to install the variable pitch drive.

Description

Technical Field

[0001] This invention relates to the field of wind power generation technology, and in particular to an adjustable bucket platform. Background Technology

[0002] In recent years, with the continuous advancement of wind power technology and the increasing capacity of wind turbine units, wind turbines have also tended towards larger sizes. Pitch drive is a core component in the wind turbine hub, controlling blade rotation, increasing the blade's wind-receiving area, and directly affecting the unit's power generation efficiency.

[0003] Traditional hub-mounted pitch drive installation methods are only suitable for small-capacity wind turbines. Since there is no foothold inside the hub, a hub pedal must first be inserted into the hub for support before the pitch drive is installed. With the increasing size of wind turbines, the internal space of the hub has increased, making the pedal-based installation platform unsuitable for pitch drive installation. Furthermore, the external shape of the hub limits the size of the installation platform; existing hub pedals have fixed dimensions, poor versatility, and lack adjustability, and the excessive lateral space inside the hub also hinders installation.

[0004] Therefore, how to solve the problems of poor versatility of hub pedals and inability to install pitch drive is a technical problem that needs to be solved by those skilled in the art. Summary of the Invention

[0005] The purpose of this invention is to provide an adjustable bucket platform that can solve the problems of poor versatility of hub pedals and inability to install pitch drive.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] An adjustable bucket platform is provided for mounting a pitch drive inside a wheel hub. The adjustable bucket platform includes a bucket assembly and a pedal assembly. The bucket assembly includes a disc seat and a pedal seat connected by a ladder. The disc seat is mounted on a top disc of the wheel hub. The pedal seat is used to mount the pedal assembly, which is movable relative to the wheel hub for mounting the pitch drive.

[0008] Preferably, the escalator and the tread assembly are spaced apart circumferentially along the tread seat. Both sides of the escalator are provided with a first lifting lug, a locking plate and a chain assembly. The chain assembly is adjustablely connected to the first lifting lug and the tread assembly respectively. The locking plate can be locked with the end of the tread assembly away from the tread seat.

[0009] Preferably, the pedal assembly includes a fixed pedal and a movable pedal that are movable relative to each other. The pedal seat is provided with a support for supporting the fixed pedal. The fixed pedal is rotatably connected to the pedal seat via a butterfly hinge. The movable pedal is located at the end of the fixed pedal away from the support.

[0010] Preferably, the fixed pedal includes a first perforated plate, a side folding plate, and a first bottom folding plate. The first bottom folding plate is used to support the first perforated plate, and the side folding plates are located on both sides of the first bottom folding plate. The side folding plates are provided with second lugs for connecting the chain assembly.

[0011] Preferably, the movable pedal includes a second perforated plate, a U-shaped folding plate, and a second bottom folding plate. The second bottom folding plate is used to support the second perforated plate, and the U-shaped folding plate is used to cooperate with the side folding plate.

[0012] Preferably, the side folding plate is also provided with a slide rail, a small roller, a limiting plate and a first limiting sleeve, and the U-shaped folding plate is provided with a large roller and a second limiting sleeve. The small roller is connected to the end of the side folding plate through a roller frame. The limiting plate is used to restrict the large roller moving along the slide rail from disengaging from the side folding plate. The first limiting sleeve and the second limiting sleeve are detachably engaged by a limiting pin to limit the relative position of the fixed pedal and the movable pedal.

[0013] Preferably, both the small roller and the large roller include a steel wheel, a deep groove ball bearing, and a spring retainer ring for the bore, and both the small roller and the large roller can rotate around their own axis.

[0014] Preferably, the U-shaped folding plate has a sleeve at its end, and a hook is inserted through the sleeve. The hook can engage with the snap-fit ​​plate to fix the tread assembly relative to the escalator.

[0015] Preferably, the chain assembly includes a chain, an open rigging screw, and a quick-connect ring. The first lifting lug, the open rigging screw, the chain, and the second lifting lug are connected in sequence via the quick-connect ring. The open rigging screw can adjust its length to ensure that the fixed pedal is set horizontally.

[0016] Preferably, the disc base is evenly provided with a third lifting lug, an angled handle, and a fixing pad on its circumference. The fixing pad is connected to the disc base by screws to fit the top disc. The third lifting lug and the angled handle are located on the side of the disc base away from the fixing pad.

[0017] Compared to the aforementioned background technology, the adjustable bucket platform provided by the present invention is used to install a pitch drive inside a wheel hub. The adjustable bucket platform includes a bucket assembly and a pedal assembly. The bucket assembly includes a disc seat and a pedal seat connected by a ladder. The disc seat is installed on the top disc of the wheel hub, and the pedal seat is used to install the pedal assembly. The pedal assembly is movable relative to the wheel hub for installing the pitch drive.

[0018] Specifically, the pedal assembly is first fixed to the bucket assembly, which is then lowered into the wheel hub. Simultaneously, the location for the pitch drive installation is observed to ensure easy access after the pedal assembly is lowered. The operator enters from the top disc of the wheel hub, ascends the ladder of the bucket assembly to the pedal seat, and slowly lowers the pedal assembly, which is then leveled. The distance between the pedal assembly and the wheel hub is adjusted for the pitch drive to be installed inside the wheel hub. The ladder design facilitates easy access for subsequent installation operations. The pedal assembly can move relative to the wheel hub, achieving lateral adjustment, thus solving the problems of poor wheel hub pedal versatility and the inability to install pitch drives. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0020] Figure 1 This is a structural schematic diagram of the adjustable bucket platform in use according to an embodiment of the present invention;

[0021] Figure 2 This is a schematic diagram of the adjustable bucket platform provided in an embodiment of the present invention;

[0022] Figure 3 for Figure 2 Top view;

[0023] Figure 4 for Figure 2 A partial sectional view;

[0024] Figure 5 This is a structural schematic diagram of another state of the adjustable bucket platform provided in an embodiment of the present invention.

[0025] in:

[0026] 1- Pitch drive, 2- Hub;

[0027] 100-Hopper assembly, 110-Escalator, 111-First lifting lug, 112-Snap-fit ​​plate, 113-Chain assembly, 120-Disc seat, 121-Third lifting lug, 122-Angle handle, 123-Fixing pad, 130-Step seat, 131-Support seat;

[0028] 200-Fixed pedal, 210-Butterfly hinge, 220-First perforated plate, 230-Side folding plate, 231-Second hanging lug, 232-Small roller, 233-Roller frame, 234-First limiting sleeve, 235-Limiting pin, 240-First bottom folding plate;

[0029] 300-Moving pedal, 310-Second perforated plate, 320-U-shaped folding plate, 321-Large roller, 322-Second limiting sleeve, 323-Sleeve, 324-Hook, 330-Second bottom folding plate. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0032] In the description of this invention, it should be understood that the terms "upper", "lower", "top", "bottom", "inner" and "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the position or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations of this invention.

[0033] The purpose of this invention is to provide an adjustable bucket platform that can solve the problems of poor versatility of hub pedals and inability to install pitch drive.

[0034] To achieve the above objectives, the present invention provides the following technical solution:

[0035] Please see Figure 1 This embodiment provides an adjustable bucket platform for mounting the pitch drive 1 inside the hub 2. The adjustable bucket platform includes a bucket assembly 100 and a pedal assembly. The bucket assembly 100 includes a disc seat 120 and a pedal seat 130 connected by a ladder 110. The disc seat 120 is mounted on the top disc of the hub 2, and the pedal seat 130 is used to mount the pedal assembly. The pedal assembly is movable relative to the hub 2 for mounting the pitch drive 1.

[0036] It should be noted that the bucket assembly 100 is preferably made of Q235B steel, and the disc base 120 is specifically a circular structure adapted to the top disc. The shape of the disc base 120 can also be adjusted according to the actual situation, as long as the above purpose can be achieved.

[0037] Specifically, the pedal assembly is first fixed to the bucket assembly 100, which is then lowered into the hub 2. Simultaneously, the location where the pitch drive 1 needs to be installed is observed to ensure easy access after the pedal assembly is lowered. The operator enters from the top disc of the hub 2, ascends the ladder 110 of the bucket assembly 100 to the pedal seat 130, and slowly lowers the pedal assembly installed on the pedal seat 130 to a horizontal position. The distance between the pedal assembly and the hub 2 is then adjusted for the installation of the pitch drive 1 inside the hub 2. The ladder 110 is designed for easy access for subsequent installation operations. The pedal assembly can move relative to the hub 2, achieving lateral adjustment, thus solving the problems of poor pedal versatility and the inability to install the pitch drive 1 on the hub 2.

[0038] Please see Figure 2 Preferably, the escalator 110 and the tread assembly are spaced apart along the circumference of the tread seat 130. The escalator 110 is provided with a first lifting lug 111, a locking plate 112 and a chain assembly 113 on both sides. The chain assembly 113 is adjustablely connected to the first lifting lug 111 and the tread assembly respectively. The locking plate 112 can be locked with the end of the tread assembly away from the tread seat 130.

[0039] It is understood that the step seat 130 is specifically hexagonal. The hexagonal step seat 130 is welded from the step surface and the hexagonal square steel frame. The number of escalator 110 and step assembly is preferably 3 sets. The escalator 110 and step assembly are arranged at intervals along the circumference of the step seat 130. Each escalator 110 is provided with a first lifting lug 111 and a locking plate 112 on both sides. The locking plate 112 is preferably located below the lifting lug.

[0040] The chain assembly 113 is adjustablely connected to the first lug 111 and the step assembly so that the step assembly can be height-adjusted relative to the escalator 110.

[0041] Please see Figure 3 Preferably, the pedal assembly includes a fixed pedal 200 and a movable pedal 300 that are movable relative to each other. The pedal seat 130 is provided with a support seat 131 for supporting the fixed pedal 200. The fixed pedal 200 is rotatably connected to the pedal seat 130 via a butterfly hinge 210. The movable pedal 300 is located at the end of the fixed pedal 200 away from the support seat 131.

[0042] In this embodiment, the pedal seat 130 is provided with a support seat 131 for supporting the fixed pedal 200, and the fixed pedal 200 and the pedal seat 130 are connected by a butterfly hinge 210, so that the fixed pedal 200 can rotate relative to the pedal seat 130. The movable pedal 300, which can move relative to the fixed pedal 200, is located at the end of the fixed pedal 200 away from the support seat 131 and is used to extend towards the inner wall of the hub 2.

[0043] It should be noted that each pedal assembly corresponds to three support seats 131. The number and position of the support seats 131 can be adjusted according to the actual situation, as long as the above purpose is achieved.

[0044] Preferably, the fixed pedal 200 includes a first perforated plate 220, a side folding plate 230 and a first bottom folding plate 240. The first bottom folding plate 240 is used to support the first perforated plate 220. The side folding plates 230 are located on both sides of the first bottom folding plate 240. The side folding plates 230 are provided with second lugs 231 for connecting the chain assembly 113.

[0045] It is understandable that the side folding plate 230 is located on both sides of the bottom folding plate and has a second lifting lug 231 at the end opposite to the step seat 130. The chain assembly 113 passes through the first lifting lug 111 and the second lifting lug 231. By adjusting the chain assembly 113, the distance between the escalator 110 and the fixed step 200 can be further controlled so that the fixed step 200 can be kept as horizontal as possible during use.

[0046] It should be noted that the first bottom folding plate 240 is a grid-shaped welded frame. The first bottom folding plate 240 and the side folding plate 230 are preferably made of Q235B steel. The specific materials of the first bottom folding plate 240 and the side folding plate 230 can be adjusted according to the actual situation, as long as the above purpose can be achieved.

[0047] Preferably, the movable pedal 300 includes a second perforated plate 310, a U-shaped folding plate 320, and a second bottom folding plate 330. The second bottom folding plate 330 is used to support the second perforated plate 310, and the U-shaped folding plate 320 is used to cooperate and connect with the side folding plate 230.

[0048] In addition, the U-shaped folding plate 320 of the movable pedal 300 is used to connect with the side folding plate 230 so that the fixed pedal 200 and the movable pedal 300 can move relative to each other. The second bottom folding plate 330 is specifically a king-shaped welded frame. The second bottom folding plate 330 and the U-shaped folding plate 320 are preferably made of Q235B steel. The specific materials of the second bottom folding plate 330 and the U-shaped folding plate 320 can be adjusted according to the actual situation, as long as the above purpose can be achieved.

[0049] Please see Figure 4 and Figure 5 Preferably, the side folding plate 230 is also provided with a slide rail, a small roller 232, a limiting plate and a first limiting sleeve 234, and the U-shaped folding plate 320 is provided with a large roller 321 and a second limiting sleeve 322. The small roller 232 is connected to the end of the side folding plate 230 through a roller frame 233. The limiting plate is used to restrict the large roller 321 moving along the slide rail from disengaging from the side folding plate 230. The first limiting sleeve 234 and the second limiting sleeve 322 are detachably engaged by a limiting pin 235 to limit the relative position of the fixed pedal 200 and the movable pedal 300.

[0050] The side folding plate 230 is provided with a slide for the movement of the large roller 321. The limiting plate of the side folding plate 230 is located between the small roller 232 and the large roller 321 to limit the movement range of the large roller 321. The limiting plate has a supporting function for the side folding plate 230. In addition, each side of the side folding plate 230 is also provided with a support plate for supporting. The first limiting sleeve 234 is evenly arranged along the extension direction of the side folding plate 230. The second limiting sleeve 322 is arranged at both ends of the U-shaped folding plate 320. The relative position of the fixed pedal 200 and the movable pedal 300 can be limited by the limiting pin 235 passing through the first limiting sleeve 234 and the second limiting sleeve 322.

[0051] It should be noted that the roller frame 233 is welded from a square connecting plate and a roller shaft. The roller frame 233 is preferably made of Q355NE steel. There are four countersunk holes on the connecting plate, which are used to fix the pedal 200 and connect the movable pedal, respectively. The upper end of the roller shaft is provided with a threaded hole for fixing the large roller 321 and the small roller 232. In addition, the specific number of the first limiting sleeve 234 can be adjusted according to the actual situation, as long as the above purpose can be achieved.

[0052] Preferably, both the small roller 232 and the large roller 321 include a steel wheel, a deep groove ball bearing, and a spring retainer ring for the bore, and both the small roller 232 and the large roller 321 can rotate around their own axis.

[0053] In this embodiment, both the small roller 232 and the large roller 321, which can rotate around their own axis, include a steel wheel, a deep groove ball bearing, and a spring retainer ring for the hole, which are used to enable the large roller 321 to slide smoothly relative to the side folding plate 230. The small roller 232 is located at the end of the side folding plate 230 away from the support seat 131 and has a supporting function for the moving pedal 300.

[0054] Preferably, the U-shaped folding plate 320 has a sleeve 323 at its end, and a hook 324 passes through the sleeve 323. The hook 324 can engage with the snap-fit ​​plate 112 to fix the tread assembly relative to the escalator 110.

[0055] It should be noted that the U-shaped folding plate 320 is provided with a sleeve 323 at its end. The U-shaped folding plate 320 and the escalator 110 are connected by a hook 324 to the sleeve 323 and the locking plate 112. When the pedal assembly is not needed, the pedal assembly can be locked onto the locking plate 112 on the escalator 110.

[0056] The hook 324 and the limiting pin 235 are both bent structures. The longer end of the bent structure is provided with a threaded section for installing a nut to limit the position of the bent structure. In addition, the hook 324 and the limiting pin 235 are preferably made of 304 stainless steel. The materials of the hook 324 and the limiting pin 235 can also be adjusted according to the actual situation, as long as the above purpose can be achieved.

[0057] Preferably, the chain assembly 113 includes a chain, an open rigging screw, and a quick-connect ring. The first lifting lug 111, the open rigging screw, the chain, and the second lifting lug 231 are connected in sequence via the quick-connect ring. The open rigging screw can adjust its length so that the fixed pedal 200 is set horizontally.

[0058] In this embodiment, the chain assembly 113 includes a chain, an open rigging screw buckle, and three quick-connect rings. One quick-connect ring connects the open rigging screw buckle and the chain. The other two quick-connect rings are used to connect the open rigging screw buckle and the first lifting lug 111, the chain, and the second lifting lug 231, respectively. The open rigging screw buckle can adjust its length so that the fixed pedal 200 is set horizontally.

[0059] Preferably, the disc base 120 is evenly provided with a third lifting lug 121, an angled handle 122 and a fixing pad 123 around its circumference. The fixing pad 123 is connected to the disc base 120 by screws and is used to fit the top disc. The third lifting lug 121 and the angled handle 122 are located on the side of the disc base 120 away from the fixing pad 123.

[0060] It is understood that the third lifting lug 121, the angled handle 122, and the fixing block 123 are all evenly distributed along the circumference of the disc base 120. In this embodiment, the number of third lifting lugs 121 is preferably 3, which are used to install the bucket assembly 100 on the top disc of the hub 2. The number of angled handles 122 is preferably 6. The angled handles 122 facilitate the operator to go up and down the escalator 110. The angled handles 122 are correspondingly arranged above the escalator 110. The number of fixing blocks 123 is preferably 3. The fixing blocks 123 are correspondingly distributed between the escalators 110. The fixing blocks 123 are connected to the disc base 120 by screws.

[0061] In addition, the fixing pad 123 is preferably made of nylon. The number and position of the third hanging lug 121, the angle handle 122 and the fixing pad 123 can be adjusted according to the actual situation to achieve the above purpose.

[0062] It should be noted that in this specification, relational terms such as first and second are used only to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.

[0063] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0064] The embodiments provided by the present invention have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the present invention. The descriptions of the embodiments above are merely for the purpose of helping to understand the method and core ideas of the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. An adjustable bucket platform for mounting a variable pitch drive (1) inside a hub (2), characterized in that, The adjustable bucket platform comprises a bucket assembly (100) and a pedal assembly, the bucket assembly (100) comprises a disc seat (120) and a pedal seat (130) connected by a ladder (110), the disc seat (120) is installed on the top disc of the hub (2), the pedal seat (130) is used for installing the pedal assembly, the pedal assembly can move relative to the hub (2), and the pedal assembly is used for installation of the variable pitch drive (1); The ladder (110) and the pedal assembly are arranged at intervals along the circumference of the pedal seat (130), and the ladder (110) is provided with a first lifting lug (111), a clamping plate (112) and a chain assembly (113) on both sides, the chain assembly (113) is adjustably connected to the first lifting lug (111) and the pedal assembly respectively, and the clamping plate (112) can be clamped with one end of the pedal assembly away from the pedal seat (130).

2. The adjustable bucket platform of claim 1, wherein, The pedal assembly comprises a fixed pedal (200) and a movable pedal (300) capable of relative movement, the pedal seat (130) is provided with a support seat (131) for supporting the fixed pedal (200), the fixed pedal (200) is rotatably connected to the pedal seat (130) through a butterfly hinge (210), and the movable pedal (300) is located at one end of the fixed pedal (200) away from the support seat (131).

3. The adjustable bucket platform of claim 2, wherein, The fixed pedal (200) comprises a first punched plate (220), a side edge folded plate (230) and a first bottom folded plate (240), the first bottom folded plate (240) is used for supporting the first punched plate (220), the side edge folded plate (230) is located on both sides of the first bottom folded plate (240), and the side edge folded plate (230) is provided with a second lifting lug (231) for connecting the chain assembly (113).

4. The adjustable bucket platform of claim 3, wherein, The movable pedal (300) comprises a second punched plate (310), a U-shaped folded plate (320) and a second bottom folded plate (330), the second bottom folded plate (330) is used for supporting the second punched plate (310), and the U-shaped folded plate (320) is used for matched connection with the side edge folded plate (230).

5. The adjustable bucket platform of claim 4, wherein, The side edge folded plate (230) is further provided with a slide, a small roller (232), a limiting plate and a first limiting sleeve (234), the U-shaped folded plate (320) is provided with a large roller (321) and a second limiting sleeve (322), the small roller (232) is connected to the end of the side edge folded plate (230) through a roller frame (233), the limiting plate is used for limiting the large roller (321) moving along the slide from the side edge folded plate (230), and the first limiting sleeve (234) and the second limiting sleeve (322) are detachably clamped through a limiting pin (235) to limit the relative position of the fixed pedal (200) and the movable pedal (300).

6. The adjustable bucket platform of claim 5, wherein, Both the small roller (232) and the large roller (321) include a steel wheel, a deep groove ball bearing and a spring retainer for the bore, and both the small roller (232) and the large roller (321) can rotate around their own axis.

7. The adjustable bucket platform of claim 4, wherein, The U-shaped folding plate (320) has a sleeve (323) at its end, and a hook (324) is inserted through the sleeve (323). The hook (324) can engage with the snap-fit ​​plate (112) to fix the tread assembly relative to the escalator (110).

8. The adjustable bucket platform of claim 3, wherein, The chain assembly (113) includes a chain, an open rigging screw buckle and a quick-connect ring. The first lifting lug (111), the open rigging screw buckle, the chain and the second lifting lug (231) are connected in sequence through the quick-connect ring. The open rigging screw buckle can adjust its length so that the fixed pedal (200) is set horizontally.

9. The adjustable bucket platform according to any one of claims 1 to 8, wherein, The disc base (120) is evenly provided with a third lifting lug (121), an angled handle (122) and a fixing pad (123) in the circumference. The fixing pad (123) is connected to the disc base (120) by screws to fit the top disc. The third lifting lug (121) and the angled handle (122) are located on the side of the disc base (120) away from the fixing pad (123).

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