CN212528412U - Detachable swivelling beam for rotating wind turbine blade moulds - Google Patents
Detachable swivelling beam for rotating wind turbine blade moulds Download PDFInfo
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- CN212528412U CN212528412U CN202020660909.0U CN202020660909U CN212528412U CN 212528412 U CN212528412 U CN 212528412U CN 202020660909 U CN202020660909 U CN 202020660909U CN 212528412 U CN212528412 U CN 212528412U
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- turbine blade
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/20—Opening, closing or clamping
- B29C33/26—Opening, closing or clamping by pivotal movement
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/08—Blades for rotors, stators, fans, turbines or the like, e.g. screw propellers
- B29L2031/082—Blades, e.g. for helicopters
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Abstract
The utility model discloses a can dismantle gyration roof beam for rotating wind turbine blade mould, it includes upper beam, underbeam and connects the gyration arm of upper beam and underbeam. The upper beam includes an upper beam member having a free first end and an opposite second end. The second end is connected to the swing arm by a first swing arm connection mounted on the upper beam member. The upper beam also includes first and second plate mounting mechanisms spaced apart from each other along the length of the upper beam member and mounted toward the first and second ends of the upper beam member, respectively. Each of the first and second plate mounting mechanisms comprises a mounting plate configured to be detachably mounted to a respective longitudinal side of an upper mould portion of a wind turbine blade mould, respectively. The first and second plate mounting mechanisms are adjustable whereby the respective mounting plate is movable in at least two orthogonal directions relative to the upper beam member to a desired position and the respective mounting plate is fixable in the desired position.
Description
Technical Field
The utility model relates to a wind turbine blade mould field especially relates to a can dismantle gyration roof beam for rotating wind turbine blade mould.
Background
Wind power has received increasing attention from countries throughout the world as a clean and renewable energy source. The global wind energy is about 2.74 multiplied by 109Megawatts of wind energy of 2 x 107Megawatts, which is 10 times the total water energy that can be developed on earth. For a long time, people mainly use wind by pumping water, grinding flour and the like through a windmill. There is now interest in how to generate electricity from wind. The principle of wind power generation is to use wind to drive wind turbine blades to rotate, and then to accelerate the rotational speed by a speed booster to generate electricity. According to current wind power generation technology, a wind speed of about 3 m/s can be started to generate electricity. Wind power generation is being developed vigorously worldwide because it does not have fuel problems and does not produce radiation or air pollution.
With the development of clean energy, the wind power industry is also rapidly developing. The megawatt levels of wind turbine blades have increased, and the length of wind turbine blades has increased from the initial 40 meters to the present 80 meters. As the length of the wind turbine blade gets longer, the length of the mould also gets longer and the breadth (web) of the wind turbine blade gets larger and longer. At the same time, the dimensional specifications of wind turbine blades are becoming larger and larger due to the increasing mainstream wind power requirements.
The spar is a critical structure in mainstream wind turbine blade molds. There are approximately twelve rotating beams in the mainstream wind turbine blade mold, including six upper beams in the upper mold and six lower beams in the lower mold. Since there are so many slewing beams in a wind turbine blade mould, there are many disadvantages. As wind power generation increases, the size of wind turbine blade moulds increases and the size and number of spar caps will increase. Therefore, these disadvantages will become more and more prominent, as analyzed below.
One, connection mode
Currently, the primary means of attachment of the spar in mainstream wind turbine blade moulds is by direct welding. The swing beam needs to ensure the opening and closing of the upper and lower molds, and thus the positional accuracy of the swing beam in the upper and lower molds needs to be within 1mm to 2 mm. However, since the wind turbine blade mould has a length of more than 60 meters and a width and height of more than 5m-6m, it is difficult to ensure the opening and closing by welding. In a later stage, the inaccuracies can lead to abnormal noise of the swivel arm, mold flutter during mold rotation, misalignment during mold closing, etc.
Second, strength
The slewing beam is the main stressed member. The material of the spar is typically high yield steel, while the die steel frame parts to which the spar is attached are primarily Q345D steel, with Q235B steel being used by many manufacturers. After a number of openings and closings of the mould, these welded parts will break, which is very dangerous.
Third, cost
The price of each wind turbine blade mould is very high and the manufacturing, mounting and welding costs of the spar represent a significant part of the costs. Due to the rapid development of the wind power industry, the service life of a set of wind power generation molds is averagely 1-2 years, and a few molds can be used for 3-4 years. If the rotary beam can be repeatedly used, the manufacturing cost of the wind power generation die can be greatly reduced.
Fourth, the installation state
At present, because the upper and lower turning beams should be in the same plane and parallel to each other, the mainstream wind turbine blade mold needs to be in a closed state when the turning beams are installed, and the wind power generation mold is very difficult and inaccurate to close before the turning beams are installed.
SUMMERY OF THE UTILITY MODEL
The utility model aims at: for solving prior art's defect, the utility model provides a simple, the intensity is high, the precision is high and with low costs be used for rotating wind turbine blade mould can dismantle the gyration roof beam.
The solution is as follows: in order to achieve the above object, a detachable swivel beam for rotating a wind turbine blade mould according to the present invention comprises an upper beam, a lower beam and a swivel arm connecting the upper beam and the lower beam.
The upper beam includes an upper beam member having a free first end and an opposite second end. The second end is connected to the swing arm by a first swing arm connection mounted on the upper beam member. The upper beam also includes first and second plate mounting mechanisms spaced apart from each other along the length of the upper beam member and mounted toward the first and second ends of the upper beam member, respectively. Each of the first and second plate mounting mechanisms comprises a mounting plate configured to be detachably mounted to a respective longitudinal side of an upper mould portion of a wind turbine blade mould, respectively. The first and second plate mounting mechanisms are adjustable whereby the respective mounting plate is movable in at least two orthogonal directions relative to the upper beam element to a desired position and the respective mounting plate is fixable in the desired position.
The lower beam includes a lower beam member having a free first end and an opposite second end. The second end is connected to the swivel arm by a second swivel arm connection mounted on the lower beam member. The bottom support is mounted below the lower beam element.
As a further preferred embodiment of the invention, the first plate mounting mechanism is mounted towards the free end of the upper beam, in use, to be mounted at the front longitudinal side of the wind turbine blade mould, and the second plate mounting mechanism is mounted towards the opposite second end of the upper beam, in use, to be mounted at the rear longitudinal side of the wind turbine blade mould.
As another preferred embodiment of the present invention, the upper beam is a welded box-shaped upper beam, and the lower beam is a welded box-shaped lower beam.
As another preferred embodiment of the present invention, each of the first and second plate mounting mechanisms includes a lateral transition adjustment plate adjustably fitted to the upper beam and further includes a first fixing mechanism for fixing the lateral transition adjustment plate in a desired longitudinal position along the upper beam, the lateral transition adjustment plate being longitudinally movable along the upper beam.
As another preferred embodiment of the present invention, each of the first plate mounting mechanism and the second plate mounting mechanism further comprises a lateral transition fixing plate fixed to the upper beam at a fixed position, each lateral transition adjusting plate being adjustably fixed to the respective lateral transition fixing plate by the respective first fixing mechanism.
As another preferred embodiment of the present invention, the first fixing mechanism includes a plurality of bolts.
As another preferred embodiment of the present invention, the bolt passes through the transverse elongated adjustment hole in the transverse transition adjustment plate and the fixing bolt hole in the transverse transition fixing plate, so that the transverse transition adjustment plate can move transversely relative to the transverse transition fixing plate, and/or the bolt passes through the longitudinal elongated adjustment hole in the transverse transition fixing plate and the fixing bolt hole in the transverse transition fixing plate, so that the transverse transition adjustment plate can move longitudinally relative to the transverse transition fixing plate.
When the lateral transition adjusting plates of the first plate mounting mechanism and the second plate mounting mechanism are fixed on the lateral transition fixing plate by bolts, then in the case where the mounting of the upper beam deviates from the desired position, the bolts are unscrewed and screwed with respect to the lateral transition fixing plate, thereby allowing the positions of the first lateral transition adjusting plate and the second lateral transition adjusting plate with respect to the respective lateral transition fixing plates to be adjusted, thereby compensating for the fore-and-aft position of the entire upper beam to be moved by the movement of the fore-and-aft position of the lateral transition adjusting plates.
As another preferred embodiment of the present invention, each of the first plate mounting mechanism and the second plate mounting mechanism comprises a first adjustment mechanism, the first adjustment mechanism being fitted between the lateral transition adjustment plate and the lateral transition fixing plate or between the lateral transition adjustment plate and a portion of the upper beam adjacent to the lateral transition fixing plate, the first adjustment mechanism being arranged for adjusting the position of the lateral transition adjustment plate relative to the lateral transition fixing plate in a direction extending longitudinally along the upper beam.
As another preferred embodiment of the present invention, the first adjustment mechanism includes a first adjustment bolt threadedly mounted to a first threaded coupler in a fixed position relative to the upper beam, the first adjustment bolt movably contacting the lateral transition adjustment plate.
According to a preferred embodiment of the present invention, the lateral transition adjustment plate may be moved longitudinally relative to the lateral transition fixation plate by manually pushing the lateral transition adjustment plate after unscrewing the bolt (e.g. by turning the first adjustment bolt). The range of movement is for example ± 50mm or ± 25 mm. This can provide chordwise adjustment of the mounting plates of the first and second plate mounting mechanisms. Alternatively or additionally, the lateral transition adjustment plate may be moved laterally relative to the lateral transition fixation plate by manually pushing the lateral transition adjustment plate after loosening the bolts. The range of movement in each direction is, for example, ± 50mm or ± 25 mm. This can provide spanwise adjustment of the mounting plates of the first and second plate mounting mechanisms.
As another preferred embodiment of the present invention, each of the lateral transition adjustment plates includes a pair of trunnions that extend laterally away from the upper beam in opposite directions, each of the first plate mounting mechanism and the second plate mounting mechanism further includes a pair of longitudinal transition adjustment plates, each of the longitudinal transition adjustment plates rotatably mounted on a respective trunnion, wherein each of the longitudinal transition adjustment plates further includes a cavity that receives a respective trunnion, wherein each of the longitudinal transition adjustment plates has a respective mounting plate mounted thereon.
As another preferred embodiment of the present invention, the detachable walking beam further comprises a second adjustment mechanism assembled on each of the corresponding longitudinal transition adjustment plates, the second adjustment mechanism being located between the longitudinal transition adjustment plate and the upper beam, the second adjustment mechanism being arranged for transversely adjusting the longitudinal transition adjustment plate in a direction orthogonal to the upper beam.
As another preferred embodiment of the present invention, the second adjustment mechanism includes a second adjustment bolt threadedly assembled to a second threaded coupler in a fixed position relative to the upper beam or relative to the lateral transition adjustment plate, the second adjustment bolt movably contacting the longitudinal transition adjustment plate.
As another preferred embodiment of the present invention, the detachable walking beam further comprises a second fixing mechanism assembled to each respective longitudinal transition adjustment plate, the second fixing mechanism being arranged for fixing the longitudinal transition adjustment plate to a desired lateral position orthogonal to the upper beam.
As another preferred embodiment of the present invention, each longitudinal transition adjustment plate includes a pair of plate members fitted around respective opposite sides of the respective trunnion, and the second securing mechanism includes a plurality of bolts extending through the pair of plate members for clamping the pair of plate members in a fixed position relative to the respective trunnion.
As another preferred embodiment of the present invention, the fitting plate is sandwiched between the pair of plate members.
According to a preferred embodiment of the present invention, the longitudinal transition adjustment plate is laterally movable relative to the lateral transition fixation plate by manually pushing the longitudinal transition adjustment plate after releasing the second fixation mechanism (e.g., by turning the second adjustment bolt) to loosen the trunnion. The range of movement is for example ± 50mm or ± 25 mm. This can provide spanwise adjustment of the mounting plates of the first and second plate mounting mechanisms.
As another preferred embodiment of the present invention, the detachable walking beam further comprises a third adjustment mechanism assembled to each respective longitudinal transition adjustment plate, the third adjustment mechanism being positioned between the assembly plate and the longitudinal transition adjustment plate, the third adjustment mechanism being arranged for vertical adjustment of the assembly plate relative to the longitudinal transition adjustment plate.
As another preferred embodiment of the present invention, the third adjustment mechanism includes a third adjustment bolt threadedly mounted to a third threaded coupler, the third threaded coupler being located in a fixed position relative to the mounting plate, the third adjustment bolt movably contacting the longitudinal transition adjustment plate.
As another preferred embodiment of the present invention, the detachable walking beam further comprises a third fixing mechanism assembled to each of the respective longitudinal transition adjustment plates, the third fixing mechanism being arranged for fixing the assembly plate at a desired height relative to the respective longitudinal transition adjustment plate.
According to a preferred embodiment of the present invention, the mounting plate can be moved vertically relative to the longitudinal transition adjustment plate by manually pushing the mounting plate after loosening the third fixing mechanism (e.g., by turning the third adjustment bolt). The range of movement is for example ± 50 mm. This can provide height direction adjustment of the mounting plates of the first board mounting mechanism and the second board mounting mechanism.
As another preferred embodiment of the present invention, the first swivel arm connection mechanism comprises a plurality of vertically oriented parallel plates extending in a direction parallel to the upper beam, the vertically oriented parallel plates being spaced apart from each other, wherein the vertically oriented parallel plates are removably connected to the upper end of the swivel arm.
As another preferred embodiment of the present invention, the vertically oriented parallel plate comprises a vertically extending through hole through which a plurality of bolts pass for removably connecting the upper beam to the upper end of the swivel arm, and the height of the upper beam can be adjusted relative to the position of the bolts by adjusting the through hole.
As another preferred embodiment of the present invention, the second swing arm connecting mechanism includes: an upright plate extending in a direction transverse to the underbeam; a base plate extending away from a lower portion of the upright plate in a direction parallel to a longitudinal direction of the lower beam, wherein the swivel arm is mounted adjacent to the upright plate and on the base plate.
As another preferred embodiment of the invention, the bottom support comprises a pair of bottom support plates, each bottom support plate being mounted below a respective one of the free first end and the opposite second end of the lower beam.
As another preferred embodiment of the invention, the lower beam further comprises a level adjustment device, which level adjustment device is fitted between the free first end of the lower beam and the corresponding bottom support plate below the first end of the lower beam, the opposite second end being fitted to the corresponding bottom support plate below the second end of the lower beam by means of a hinge mechanism having a horizontal hinge axis.
As another preferred embodiment of the present invention, the horizontal adjusting device includes a link mechanism having: a first end hingedly fitted to a respective bottom support plate; a second end hingedly mounted to a support plate adjustably mounted to a free first end of the lower beam.
As another preferred embodiment of the present invention, the bottom support plate is fixed to the ground by expansion bolts or chemical anchor bolts.
As another preferred embodiment of the present invention, the swivel arm is connected to an electronic control unit of the hydraulic cylinder and the hydraulic cylinder. As another preferred embodiment of the present invention, when the swing is required, the hydraulic cylinder is controlled by the electronic control unit to operate, and the piston rod of the hydraulic cylinder pushes one end of the swing arm and drives the upper beam to rotate relative to the lower beam. The working principle is based on the principle of a slider-crank mechanism. This technique is prior art and will not be described further herein.
As another preferred embodiment of the invention, each mounting plate comprises two orthogonal plate elements defining an elongated upwardly extending inner corner surface therebetween for mounting onto an elongated post of the frame structure of the upper mold.
As another preferred embodiment of the invention, the detachable turnabout beam is combined with an upper mould of a wind turbine blade mould having a frame structure for supporting an upper mould surface, wherein the assembly plate is fixed to the frame structure of the upper mould by means of threaded screws.
As another preferred embodiment of the invention, the detachable carrousel is combined with a lower mould of a wind turbine blade mould, which lower mould has a frame structure for supporting the surface of the lower mould, wherein the lower beam passes through the frame structure of the lower mould and is not in contact with the lower mould.
Has the advantages that: the utility model discloses a can dismantle gyration roof beam for rotating wind turbine blade mould compares with prior art and has following advantage:
1. it avoids deformation and displacement of the lower mould of the wind turbine blade mould caused by the stress generated by the slewing beam during slewing in the prior art. The utility model discloses a can dismantle the underbeam of gyration roof beam passes the steel frame construction of bed die under the condition of not contacting with steel frame construction. Thus, the lower beam may be directly connected to the ground to transfer all stresses to the ground. This provides the following advantages: in the design of the lower mould of the wind turbine blade mould, the stresses generated by the swivelling beam during swivelling need not be taken into account, which greatly reduces the risk of deformation and displacement. Without considering the above problems, the height of the lower mould may be reduced to a minimum, so that the overall height of the wind turbine blade mould may be reduced, thereby reducing the requirements on the height of the facilities and vehicles.
2. The mould is connected to the steel frame structure of last mould through transition connection structure on the gyration roof beam, changes from initial multiple spot connection into present multiaspect connection, can disperse the stress of junction better like this for carry out 50mm or 25 mm's longitudinal movement adjustment through longitudinal transition adjusting plate, and carry out lateral shifting through the lateral transition adjusting plate, so that satisfy the installation requirement of gyration roof beam rapidly, and shortened installation time greatly.
3. When the rotary arm is replaced in the later stage, the upper rotary beam and the lower rotary beam are adjusted twice, and the requirement on installation accuracy is completely met.
4. The wind turbine blade mould is independent of the slewing arm during manufacture and transport, and the slewing arm is a hydraulic system which cannot be operated until fully installed, so that it is very difficult to debug open and close the mould at this point. The utility model discloses a gyration roof beam itself has articulated function, can accomplish the debugging of opening and closing the mould with the help of the hoist very easily.
5. The utility model discloses a wind turbine blade mould's gyration roof beam does not basically receive the restriction of blade shape, can directly change the gyration roof beam under the mould open mode and the gyration roof beam mountable is on all current mainstream blade moulds, greatly reduced manufacturing cost, the commonality is strong to it is convenient nimble more to use.
6. The detachable turnabout beam provides a plurality of mounting plates that provide mounting surfaces for removably mounting to the frame of the upper mold. In a preferred embodiment, each mounting plate comprises two orthogonal plate elements defining an elongated upwardly extending interior corner surface therebetween for mounting to an elongated post of a mold frame. The mounting plate is movable in at least two orthogonal directions (preferably three orthogonal directions) to a desired position relative to the upper beam element. This provides a highly versatile upper beam structure that can be easily and securely fitted to a variety of different upper mould structures.
Drawings
Fig. 1 is a schematic structural view of an upper beam of an embodiment of the present invention, which shows a perspective view from above and from the front;
FIG. 2 is an exploded schematic perspective view of the upper beam of FIG. 1, viewed from below and from the front;
FIG. 3 is a schematic perspective side view of the upper beam of FIG. 1 from the rear;
FIG. 4 is a schematic perspective view of the free end of the upper beam of FIG. 1 from above and from the front;
fig. 5 is a schematic structural view of a lower beam of an embodiment of the present invention, showing a perspective view from above and from the front;
FIG. 6 is a schematic perspective view from above and from the front of the free end of the lower beam of FIG. 5;
fig. 7 is a schematic structural view of a detachable swivel beam of an embodiment of the present invention, showing a perspective view from above and from the front, in which the upper beam of fig. 1 and the lower beam of fig. 5 are connected by a swivel arm;
FIG. 8 is a schematic block diagram of a wind turbine blade mould in a closed state, the mould being fitted to the detachable swivelling beam of FIG. 7, FIG. 8 showing a perspective view from above and from the front;
fig. 9 is a schematic block diagram of the wind turbine mould shown in fig. 8 in an open state, and fig. 9 shows a perspective view from above and from behind.
Detailed Description
The invention is further described with reference to the following figures and specific examples.
As shown in fig. 1 to 9, the detachable swivel beam for rotating a wind turbine blade mold of the present invention includes an upper beam 1, a lower beam 2, and a swivel arm 3 connecting the upper beam 1 and the lower beam 2. The upper and lower beams 1, 2 are preferably welded box beams.
The upper beam 1 comprises an upper beam element 19 having a first free end 6 and an opposite second end 7. The second end 7 is connected to the swivel arm 3 by means of a first swivel arm connection 10 mounted on the upper beam element 19.
The upper beam 1 further comprises first and second plate mounting mechanisms 8, 9, said first and second plate mounting mechanisms 8, 9 being spaced apart from each other along the length of the upper beam member 19 and being mounted towards the first and second ends 6, 7 of the upper beam member 19, respectively. The first and second plate mounting mechanisms 8, 9 each comprise a mounting plate 15, which mounting plate 15 is configured to be detachably mounted to a respective longitudinal side of an upper mould part of a wind turbine blade mould.
The detachable swivelling beam is in use removably fitted to the upper mould 5 of the wind turbine blade mould. The upper mould 5 has a frame structure 38 for supporting the upper mould surface. The mounting plate 15 is fixed to the frame structure 38 of the upper mould 5 by means of threaded screws. Each mounting plate 15 comprises two orthogonal plate members 100, 102 defining between said plate members 100, 102 an elongated upwardly extending inner corner surface 104 for mounting onto an elongated post 106 of the frame structure 38 of the upper mould 5.
The first and second plate mounting mechanisms 8, 9 are adjustable whereby the respective mounting plate 15 can be moved in at least two orthogonal directions (preferably in three orthogonal directions) relative to the upper beam member 19 to a desired position, and the respective mounting plate 15 can be fixed in the desired position.
Each of the first board mounting mechanism 8 and the second board mounting mechanism 9 includes a lateral transition adjustment plate 17 adjustably mounted to the upper beam 1. The lateral transition adjustment plate 17 is longitudinally movable along the upper beam 1. Each of the first and second plate mounting mechanisms 8, 9 further includes a first securing mechanism 30 for securing the lateral transition adjustment plate 17 at a desired longitudinal position along the upper beam 1.
Each of the first and second plate mounting mechanisms 8, 9 further comprises a transverse transition fixing plate 14, the transverse transition fixing plate 14 being fixed to the upper beam 1 at a fixed position. Each lateral transition adjustment plate 17 is adjustably secured to a respective lateral transition securing plate 14 by a respective first securing mechanism 30. The first fixing mechanism 30 includes a plurality of bolts 51. The bolt 51 passes through a longitudinally elongated adjustment hole 53 in the transverse transition adjustment plate 17 and a fixation bolt hole 57 in the transverse transition fixation plate 14 such that the transverse transition adjustment plate 17 is longitudinally movable relative to the transverse transition fixation plate 14. In addition, the bolts 51 pass through the laterally elongated adjustment holes 67 in the lateral transition adjustment plate 17 and the anchor bolt holes 79 in the lateral transition fixation plate 14 such that the lateral transition adjustment plate 17 may move laterally relative to the lateral transition fixation plate 14.
Each of the first board mounting mechanism 8 and the second board mounting mechanism 9 includes a first adjustment mechanism 32, and the first adjustment mechanism 32 is fitted between the lateral transition adjustment plate 17 and the lateral transition fixing plate 14 or between the lateral transition adjustment plate 17 and a portion of the upper beam 1 adjacent to the lateral transition adjustment plate. The first adjustment mechanism 32 is arranged for adjusting the position of the transverse transition adjustment plate 17 relative to the transverse transition fixing plate 14 in a direction extending longitudinally along the upper beam 1. The first adjustment mechanism 32 includes a first adjustment bolt 130 threadably mounted to the first threaded coupling 13, the first threaded coupling 13 being in a fixed position relative to the upper beam 1, the first adjustment bolt 130 movably contacting the lateral transition adjustment plate 17.
Each lateral transition adjustment plate 17 includes a pair of trunnions 40. The trunnions 40 extend laterally away from the upper beam 1 in opposite directions. Each of the first and second plate mounting mechanisms 8 and 9 further includes a pair of longitudinal transition adjustment plates 16. Each longitudinal transition adjustment plate 16 is rotatably mounted on a respective trunnion 40. Each longitudinal transition adjustment plate 16 includes a cavity 41 in which the corresponding trunnion 40 is received 41.
A second securing mechanism 60 is mounted to each respective longitudinal transition adjustment plate 16. The second fixing mechanism 60 is arranged for fixing the longitudinal transition adjustment plate 16 to a desired lateral position orthogonal to the upper beam 1. Each longitudinal transition adjustment plate 16 includes a pair of plate members 75, the plate members 75 being mounted on respective opposite sides of the respective trunnion 40. The second securing mechanism 60 includes a plurality of bolts 62 that extend through the pair of plate members 75 to clamp the pair of plate members 75 in a fixed position relative to the respective trunnions 40.
A second adjustment mechanism 42 is mounted to each respective longitudinal transition adjustment plate 16. The second adjustment mechanism 42 is located between the longitudinal transition adjustment plate 16 and the upper beam 1. The second adjustment mechanism 42 is arranged for laterally adjusting the longitudinal transition adjustment plate 16 in a direction orthogonal to the upper beam 1. The second adjustment mechanism 42 includes a second adjustment bolt 45, the second adjustment bolt 45 being threadedly fitted to a second threaded coupling 46, the second threaded coupling 46 being in a fixed position relative to the upper beam 1 or relative to the lateral transition adjustment plate 17. The second adjustment bolt 45 movably contacts the longitudinal transition adjustment plate 16.
Each longitudinal transition adjustment plate 16 has a corresponding mounting plate 15 mounted thereto. The fitting plate 15 is sandwiched between a pair of plate members 75. A third securing mechanism 70 including bolts 89 is mounted to each respective longitudinal transition adjustment plate 16. The third fixing mechanism 70 is arranged for fixing the mounting plate 15 at a desired height relative to the respective longitudinal transition adjustment plate 16.
A third adjustment mechanism 52 is mounted to each respective longitudinal transition adjustment plate 16. The third adjustment mechanism 52 is located between the mounting plate 15 and the longitudinal transition adjustment plate 16. The third adjustment mechanism 52 is arranged for vertically adjusting the mounting plate 15 relative to the longitudinal transition adjustment plate 16. The third adjustment mechanism 52 includes a third adjustment bolt 55, the third adjustment bolt 55 being threadably mounted to a third threaded coupling 56 in a fixed position relative to the mounting plate 15. The third adjustment bolt 55 movably contacts the longitudinal transition adjustment plate 16.
The first swivel arm attachment mechanism 10 comprises a plurality of vertically oriented parallel plates 90 extending in a direction parallel to the upper beam 1. The vertically oriented parallel plates 90 are spaced apart from one another. A vertically oriented parallel plate 90 is removably connected to an upper end 92 of the swivel arm 3. The vertically oriented parallel plate 90 includes a vertically extending through hole 93. A plurality of bolts 94 pass through the through holes 93 for removably connecting the upper beam 1 to the upper end 92 of the swivel arm 3. The height of the upper beam 1 can be adjusted by adjusting the position of the through hole 93 with respect to the bolt 94.
In use, the detachable swivelling beam is also removably arranged with the lower mould 4 of the wind turbine blade mould. The lower mould tool 4 has a frame structure 39 for supporting the lower mould surface. The lower beam 2 passes through the frame structure 39 of the lower mould 5 and is not in contact with the lower mould 5.
The lower beam 2 comprises a lower beam element 21 having a first free end 26 and an opposite second end 27. The second end 27 is connected to the swivel arm 3 by means of a second swivel arm connection 23 mounted on the lower beam element 19. The bottom support 22 is mounted below the lower beam element 21.
The second swing arm connecting mechanism 23 includes: an upright plate 84, the upright plate 84 extending in a direction transverse to the lower beam 2; a base plate 85, said base plate 85 extending away from the lower portion of the upright plate 84 in a direction parallel to the longitudinal direction of the lower beam 2. The swivel arm 3 is mounted adjacent to the upright plate 84 and on the base plate 85.
The bottom support 22 includes a pair of bottom support plates 122a, 122 b. The bottom support plates 122a, 122b are secured to the ground by expansion bolts or chemical anchor bolts. Each bottom support plate 122a, 122b is mounted below a respective one of the first free end 26 and the opposite second end 27 of the lower beam 2. The levelling means 24 is fitted between the first free end 26 of the lower beam 2 and a corresponding bottom support plate 122a below the first free end. The opposite second end 27 is fitted to a respective bottom support plate 122b below the second end by means of a hinge mechanism 88 having a horizontal hinge axis.
The leveling device 24 includes a link mechanism 47. The first end 48 of the linkage 47 is hingedly mounted to the respective bottom support plate 122a, and the second end 49 is hingedly mounted to a support plate 59, the support plate 59 being adjustably mounted to the first free end 26 by means of bolts 61. Tightening of the bolt 61 clamps the first free end 26 to the support plate 59 and sets the first free end 26 at a desired vertical position.
The swivel arm 3 is connected to the hydraulic ram and to the electronic control unit of the hydraulic ram.
A method of assembling a detachable spar to a wind turbine blade mould is now described.
In this way, the lower beam 2 can be kept out of contact with the lower mould 4 and the associated frame structure 39, which provides the advantage that: during the turning operation, the stress on the upper mould 5 may be transmitted to the ground through the lower beam 2 without being transmitted through the lower mould 4.
Furthermore, in this method, the mounting plate 15 may provide a large surface area for being securely fixed to the frame structure 38 of the upper mold 5 by means of the threaded screws 91. After use, the mounting plate 15 may be easily detached from the upper mould 5, and the detachable swivelling beam may then be used with another wind blade mould.
The mounting plate 15 can be individually moved in at least two (preferably three) orthogonal directions to a desired position relative to the upper beam element 19, and the respective mounting plate 15 can be fixed in the desired position. The position of the fitting plate 15 may be adjusted for fitting to another wind blade mould. The mounting plates 15 may each be provided with a spanwise adjustment, a chordwise adjustment and a height direction adjustment.
Chordal adjustment is achieved by adjusting the longitudinal position of the transverse transition adjustment plate 17 relative to the transverse transition attachment plate 14 along the length of the upper beam member 19. The chordal adjustment uses a first adjustment mechanism 32.
Spanwise adjustment is achieved by adjusting the lateral position of the longitudinal transition adjustment plate 16 relative to the lateral transition fixation plate 14. The spanwise adjustment uses a second adjustment mechanism 42. Spanwise adjustment may also be achieved by adjusting the position of the transverse transition adjusting plate 17 relative to the transverse transition fixing plate 14 transverse to the length of the upper beam member 19.
The height adjustment is achieved by adjusting the vertical position of the mounting plate 15 relative to the longitudinal transition adjustment plate 16. The height adjustment uses a third adjustment mechanism 52.
When adjusting the lateral position, the bolts 51 are removed from the lateral transition adjustment plate 17 and the lateral transition fixing plate 14. The lateral transition adjustment plate 17 is manually pushed so that the lateral transition adjustment plate 17 moves laterally over the lateral transition fixation plate 14 and relative to the lateral transition fixation plate 14. When the lateral transition adjustment plate 17 is moved to a defined position, the bolt 51 secures the lateral transition adjustment plate 17 to the lateral transition fixation plate 14.
When adjusting the longitudinal position, the mounting plate 15 is fixed to the steel frame structure 38 of the upper die 5 by means of threaded screws 91, and then the mounting plate 15 is fixed to the longitudinal transition adjustment plate 16 by means of bolts 89. Four longitudinal transition adjustment plates 16 are then assembled to respective sides of the upper beam element 19. The fitting plate 15 and the longitudinal transition adjustment plate 16 extend longitudinally to the frame structure 38 of the upper die 5, so that the longitudinal coupling area is enlarged, the stress generated by the bolt coupling is dispersed, so that the longitudinal coupling strength is improved and any longitudinal error generated during the mounting of the upper beam 1 and the upper die steel frame structure is compensated by providing a margin for adjustment during the mounting.
When adjusting the fore-aft position, the adjustment plate 17 of the first plate mounting mechanism 8 at the front of the upper beam 1 and the adjustment plate 17 of the second plate mounting mechanism 9 at the rear of the upper beam 1 are each bolted to the respective transverse transition fixing plate 14 by bolts 51. When the mounting of the upper beam 1 deviates from the desired front-rear position, the bolt 51 is loosened and the first adjusting bolt 130 is screwed in or out relative to the threaded coupling 13 and thus relative to the transverse transitional fixing plate 14. This action adjusts the position of the forward-rearward adjustment plate 17 relative to the corresponding lateral transition fixing plate 14, so that the forward-rearward position to be moved by the entire upper beam 1 is compensated for by the movement of the forward-rearward position of the forward-rearward adjustment plate 17.
And 3, when the mold needs to be closed, controlling the hydraulic cylinder to work by the electronic control unit. The piston rod of the hydraulic cylinder pushes one end of the swivel arm 3 and drives the upper beam 1 to rotate relative to the lower beam 2, at this time, the upper beam 1 drives the upper die 5 to close the die to the lower die 4 to complete the die closing action. The stresses generated in this process are transmitted to the ground through the lower beam 2, as shown in fig. 8.
The above-mentioned embodiments are only used for illustrating the technical idea and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and the protection scope of the present invention is not limited by the embodiments. Any equivalent variations or modifications made according to the spirit of the present invention shall fall within the scope of protection of the present invention.
Claims (28)
1. A detachable spar for turning a wind turbine blade mould, the detachable spar comprising: the device comprises an upper beam (1), a lower beam (2) and a rotary arm (3) for connecting the upper beam (1) and the lower beam (2);
characterised in that the upper beam (1) comprises an upper beam element (19) having a free upper beam element first end (6) and an opposite upper beam element second end (7), the upper beam element second end (7) being connected to the swivel arm (3) by a first swivel arm connection (10) mounted on the upper beam element (19), the upper beam (1) further comprising first and second plate mounting mechanisms (8, 9) spaced apart from each other along the length of the upper beam element (19) and mounted respectively towards the upper beam element first end (6) and upper beam element second end (7) of the upper beam element (19), each of the first and second plate mounting mechanisms (8, 9) comprising a mounting plate (15) configured to be detachably mounted to a respective longitudinal side of an upper mold portion of a wind turbine blade mold, respectively Wherein the first and second plate mounting mechanisms (8, 9) are adjustable such that the respective mounting plate (15) is movable in at least two orthogonal directions relative to the upper beam element (19) to a desired position, and the respective mounting plate (15) is fixable in the desired position; and is
The lower beam (2) comprises: a lower beam element (21) having a free lower beam element first end (26) and an opposite lower beam element second end (27), the lower beam element second end (27) being connected to the swivel arm (3) by a second swivel arm connection (23) mounted on the lower beam element (21); and a bottom support (22) mounted below the lower beam element (21).
2. The demountable turnabout beam for turning a wind turbine blade mould according to claim 1, wherein each of the first and second plate mounting mechanisms (8, 9) comprises a lateral transition adjustment plate (17) adjustably fitted to the upper beam (1) and further comprises a first fixing mechanism (30), the lateral transition adjustment plate (17) being longitudinally movable along the upper beam (1), for fixing the lateral transition adjustment plate (17) at a desired longitudinal position along the upper beam (1).
3. The demountable turnabout beam for turning a wind turbine blade mould according to claim 2, wherein each of the first and second plate mounting mechanisms (8, 9) further comprises a transverse transition fixing plate (14), the transverse transition fixing plate (14) being fixed to the upper beam (1) at a fixed position, and each of the transverse transition adjusting plates (17) being adjustably fixed to the respective transverse transition fixing plate (14) by a respective first fixing mechanism (30).
4. The detachable turnabout beam for turning a wind turbine blade mould according to claim 3, characterised in that the first fixing means (30) comprises a plurality of bolts.
5. The detachable swivelling beam for turning wind turbine blade moulds of claim 4, characterized in that the bolts pass through laterally elongated adjustment holes in the lateral transition adjustment plate (17) and fixing bolt holes in the lateral transition fixing plate (14) such that the lateral transition adjustment plate (17) is laterally movable relative to the lateral transition fixing plate (14) and/or bolts pass through longitudinally elongated adjustment holes in the lateral transition adjustment plate (17) and fixing bolt holes in the lateral transition fixing plate (14) such that the lateral transition adjustment plate (17) is longitudinally movable relative to the lateral transition fixing plate (14).
6. The detachable swivelling beam for turning wind turbine blade moulds of claim 3, wherein each of the first and second plate mounting mechanisms (8, 9) comprises a first adjustment mechanism (32) fitted between the transverse transition adjustment plate (17) and the transverse transition fixing plate (14) or between the transverse transition adjustment plate (17) and a portion of the upper beam (1) adjacent to the transverse transition fixing plate, the first adjustment mechanism (32) being arranged for adjusting the position of the transverse transition adjustment plate (17) relative to the transverse transition fixing plate (14) in the direction of longitudinal extension of the upper beam (1).
7. The detachable turnabout beam for turning a wind turbine blade mould according to claim 6, characterized in that the first adjustment mechanism (32) comprises a first adjustment bolt (130), the first adjustment bolt (130) being threadably fitted to a first threaded coupling (13), the first threaded coupling (13) being in a fixed position with respect to the upper beam (1) and the first adjustment bolt (130) being movably in contact with the lateral transition adjustment plate (17).
8. The detachable swivelling beam for turning wind turbine blade moulds as claimed in claim 2, wherein each of the transverse transition adjustment plates (17) comprises a pair of trunnions (40), the trunnions (40) extending transversely away from the upper beam (1) in opposite directions, and each of the first and second plate mounting mechanisms (8, 9) further comprises a pair of longitudinal transition adjustment plates (16), each of the longitudinal transition adjustment plates (16) being rotatably mounted on a respective trunnion (40), wherein each of the longitudinal transition adjustment plates (16) comprises a cavity (41) receiving a respective trunnion (40), wherein each longitudinal transition adjustment plate (16) has a respective fitting plate (15) fitted thereon.
9. The detachable swivelling beam for turning wind turbine blade moulds of claim 8, characterized in that it further comprises a second adjustment mechanism (42) fitted to each respective longitudinal transition adjustment plate (16), the second adjustment mechanism (42) being located between the longitudinal transition adjustment plate (16) and the upper beam (1), the second adjustment mechanism (42) being arranged for laterally adjusting the longitudinal transition adjustment plate (16) in a direction orthogonal to the upper beam (1).
10. The detachable turnabout beam for turning a wind turbine blade mould according to claim 9, characterised in that the second adjustment mechanism (42) comprises: a second adjusting bolt (45) threadably fitted to a second threaded coupling (46) located in a fixed position relative to the upper beam (1) or relative to the transverse transition adjusting plate (17), the second adjusting bolt (45) movably contacting the longitudinal transition adjusting plate (16).
11. The detachable swivelling beam for turning wind turbine blade moulds of claim 8, characterized in that it further comprises a second fixing mechanism (60), the second fixing mechanism (60) being fitted to each respective longitudinal transition adjustment plate (16), the second fixing mechanism (60) being arranged for fixing the longitudinal transition adjustment plate (16) to a desired transverse position orthogonal to the upper beam (1).
12. The detachable turnabout beam for turning a wind turbine blade mould according to claim 11, characterized in that each of said longitudinal transition adjustment plates (16) comprises a pair of plate members (75) fitted around respective opposite sides of a respective trunnion (40), and that said second fixing means (60) comprises a plurality of second fixing means bolts (62) extending through said pair of plate members (75) for clamping said pair of plate members (75) in a fixed position relative to said respective trunnion (40).
13. The detachable turnabout beam for turning a wind turbine blade mould according to claim 12, characterized in that the fitting plate (15) is sandwiched between the pair of plate members (75).
14. The detachable spar for turning wind turbine blade moulds of claim 8, further comprising a third adjustment mechanism (52) fitted to each respective longitudinal transition adjustment plate (16), said third adjustment mechanism (52) being located between the fitting plate (15) and the longitudinal transition adjustment plate (16), said third adjustment mechanism (52) being arranged to vertically adjust the fitting plate (15) in relation to the longitudinal transition adjustment plate (16).
15. The detachable turnabout beam for turning a wind turbine blade mould according to claim 14, characterized in that the third adjustment mechanism (52) comprises a third adjustment bolt (55), the third adjustment bolt (55) being screw-fitted to a third screw coupling (56) in a fixed position with respect to the fitting plate (15), the third adjustment bolt (55) being movably in contact with the longitudinal transition adjustment plate (16).
16. The detachable turnabout beam for turning a wind turbine blade mould according to claim 8, characterized in that it further comprises a third fixing mechanism (70), said third fixing mechanism (70) being fitted to each respective longitudinal transition adjustment plate (16), said third fixing mechanism (70) being arranged for fixing said fitting plate (15) at a desired height with respect to the respective longitudinal transition adjustment plate (16).
17. Demountable swivel beam for turning a wind turbine blade mould according to claim 1, wherein the first swivel arm connection mechanism (10) comprises a plurality of vertically oriented parallel plates (90) extending in a direction parallel to the upper beam (1), the vertically oriented parallel plates (90) being spaced apart from each other, wherein the vertically oriented parallel plates (90) are removably connected to an upper end (92) of the swivel arm (3).
18. The detachable swivelling beam for turning wind turbine blade moulds of claim 17, characterized in that the vertically oriented parallel plates (90) comprise vertically extending through holes (93), through which through holes (93) a plurality of parallel plate bolts (94) are passed for removably connecting the upper beam (1) to the upper end (92) of the swivelling arm (3), and that the height of the upper beam (1) can be adjusted by adjusting the position of the through holes (93) in relation to the parallel plate bolts (94).
19. Demountable swivel beam for turning a wind turbine blade mould according to claim 1, wherein the second swivel arm connection means (23) comprises an upright plate (84) extending in a direction transverse to the lower beam (2) and a base plate (85) extending away from a lower part of the upright plate (84) in a direction parallel to the longitudinal direction of the lower beam (2), wherein the swivel arm (3) is mounted adjacent to the upright plate (84) and on the base plate (85).
20. The detachable turnabout beam for a rotating wind turbine blade mould according to claim 1, characterized in that the upper beam (1) is a welded box beam.
21. The detachable turnabout beam for turning wind turbine blade moulds as claimed in claim 1, characterised in that the bottom support (22) comprises a pair of bottom support plates (122a, 122b), each of said bottom support plates (122a, 122b) being mounted below a respective one of a free lower beam element first end (26) and an opposite lower beam element second end (27) of said lower beam (2).
22. Demountable turnabout beam for turning wind turbine blade moulds according to claim 21, wherein the lower beam (2) further comprises a leveling device (24), wherein the leveling device (24) is fitted between a free lower beam element first end (26) of the lower beam (2) and the respective bottom support plate below the lower beam element first end of the lower beam, and the opposite lower beam element second end (27) is fitted on the respective bottom support plate below the lower beam element second end of the lower beam by means of a hinge mechanism (88) having a horizontal hinge axis.
23. Demountable turnabout beam for turning wind turbine blade moulds as claimed in claim 22, characterized in that said level adjustment means (24) comprise a linkage mechanism (47), said linkage mechanism (47) having a first end (48) hingedly mounted to the respective bottom support plate and a second end (49) hingedly mounted to a support plate (59), said support plate (59) being adjustably mounted at the free lower beam element first end (26) of the lower beam.
24. The detachable turnabout beam for turning wind turbine blade moulds as claimed in claim 1, characterised in that the bottom support (22) is fixed to the ground by expansion bolts or chemical anchor bolts.
25. The detachable swivelling beam for turning wind turbine blade moulds of claim 1, characterized in that the swivelling arm (3) is connected to a hydraulic ram and an electronic control unit of the hydraulic ram.
26. Demountable turnabout beam for turning wind turbine blade moulds according to claim 1, c h a r a c t e r i z e d in that each of said fitting plates (15) comprises two orthogonal plate elements (100, 102) defining between them an elongated upwardly extending inner corner surface (104) for mounting to an elongated post (106) of an upper mould frame structure (38) of the upper mould (5).
27. The detachable turnabout beam for turning a wind turbine blade mould according to claim 1, characterised in that it is combined with an upper mould (5) of a wind turbine blade mould, which upper mould has an upper mould frame structure (38) for supporting an upper mould surface, wherein the mounting plate (15) is fixed to the upper mould frame structure (38) of the upper mould (5) by means of threaded screws.
28. The detachable turnabout beam for turning a wind turbine blade mould according to claim 1, characterised in that it is combined with a lower mould (4) of a wind turbine blade mould, which lower mould (4) has a lower mould frame structure (39) for supporting a lower mould surface, wherein the lower beam (2) passes through the lower mould frame structure (39) of the lower mould (4) and is not in contact with the lower mould (4).
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2020/095401 WO2020249014A1 (en) | 2019-06-10 | 2020-06-10 | Detachable turner beam for turning wind turbine blade mould |
| BR112021020992A BR112021020992A2 (en) | 2019-06-10 | 2020-06-10 | Detachable rotating beam apparatus for rotating a wind turbine blade mold |
| EP20822770.2A EP3934899B1 (en) | 2019-06-10 | 2020-06-10 | Detachable turner beam for turning wind turbine blade mould |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920861929 | 2019-06-10 | ||
| CN2019208619291 | 2019-06-10 | ||
| PCT/CN2019/097432 WO2020248339A1 (en) | 2019-06-10 | 2019-07-24 | Detachable turner beam for turning wind turbine blade mould |
| CNPCT/CN2019/097432 | 2019-07-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212528412U true CN212528412U (en) | 2021-02-12 |
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Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921137853.4U Active CN214646055U (en) | 2019-06-10 | 2019-07-19 | Detachable turnover beam for turning over power generation blade mould of wind turbine |
| CN202020660909.0U Active CN212528412U (en) | 2019-06-10 | 2020-04-27 | Detachable swivelling beam for rotating wind turbine blade moulds |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921137853.4U Active CN214646055U (en) | 2019-06-10 | 2019-07-19 | Detachable turnover beam for turning over power generation blade mould of wind turbine |
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| Country | Link |
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| CN (2) | CN214646055U (en) |
| WO (1) | WO2020248339A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113389387A (en) * | 2021-05-31 | 2021-09-14 | 汪少华 | Environmental protection auxiliary device that installation steel construction was used for building engineering |
| WO2024045425A1 (en) * | 2022-08-29 | 2024-03-07 | Gurit Tooling (Taicang) Co., Ltd. | Rigid wind turbine blade mould structure capable of rapidly replacing mould profile |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DK200501539A (en) * | 2005-11-08 | 2007-05-09 | Lm Glasfiber As | Molding device with hinge mechanism and method for closing a molding device |
| CN201317068Y (en) * | 2008-12-22 | 2009-09-30 | 中材科技风电叶片股份有限公司 | Megawatt-class turnover mechanism of fan blade die assembly |
| ES2365571B1 (en) * | 2009-05-21 | 2012-09-17 | Danobat S.Coop | SYSTEM FOR AUTOMATIC MANUFACTURING OF AEROGENERATOR SHOES |
| CN201989265U (en) * | 2011-02-24 | 2011-09-28 | 三一电气有限责任公司 | Fan blade mold turnover device and hydraulic system thereof |
| CN202264334U (en) * | 2011-07-19 | 2012-06-06 | 常州神辉电工材料有限公司 | Hydraulic turning/opening and closing system device for wind-power blade mould |
| ES2563179T3 (en) * | 2011-10-27 | 2016-03-11 | Vestas Wind Systems A/S | A production apparatus and a method for manufacturing elongated products such as wind turbine blades |
| CN204487411U (en) * | 2015-01-30 | 2015-07-22 | 迪皮埃风电叶片大丰有限公司 | A kind of adjustable type wind electricity blade girder lay position positioning tool |
| CN205951329U (en) * | 2016-05-12 | 2017-02-15 | 固瑞特模具（太仓）有限公司 | Novel wind power blade mould upset side steelframe mechanism |
| CN108145993A (en) * | 2016-12-02 | 2018-06-12 | 山东双科技股份有限公司 | Intelligent blade mold |
| CN207772205U (en) * | 2017-12-29 | 2018-08-28 | 固瑞特模具（太仓）有限公司 | A kind of wind-powered blade mold hydraulic open-close mold mechanism |
-
2019
- 2019-07-19 CN CN201921137853.4U patent/CN214646055U/en active Active
- 2019-07-24 WO PCT/CN2019/097432 patent/WO2020248339A1/en active Application Filing
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2020
- 2020-04-27 CN CN202020660909.0U patent/CN212528412U/en active Active
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| WO2020248339A1 (en) | 2020-12-17 |
| CN214646055U (en) | 2021-11-09 |
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