CN215646402U

CN215646402U - Nested combination formula stator frame of marine floated trend can generator

Info

Publication number: CN215646402U
Application number: CN202121842958.7U
Authority: CN
Inventors: 王贵; 王昆
Original assignee: Hadong National Hydroelectric Power Equipment Engineering Technology Research Central Co ltd; Harbin Electric Machinery Co Ltd
Current assignee: Hadong National Hydroelectric Power Equipment Engineering Technology Research Central Co ltd; Harbin Electric Machinery Co Ltd
Priority date: 2021-08-09
Filing date: 2021-08-09
Publication date: 2022-01-25
Anticipated expiration: 2031-08-09

Abstract

The utility model discloses an offshore suspended tidal current energy generator nested combined stator base which is formed into a whole by an outer base, an inner base, a bolt A, a bolt B, a locking nut, a bolt C, a single lug locking washer A, a limiting ring, a bolt D and a single lug locking washer B. The utility model adopts the nesting combination principle, adopts the inner and outer base combination structure to replace the traditional single base, has better integral rigidity, can effectively absorb the vibration generated when the stator operates, internally digests the electromagnetic thermal expansion generated when the stator core operates through the self structural characteristics, reduces the influence of the stator operation vibration and the electromagnetic thermal expansion on the whole cabin, improves the operation stability of the unit, and simultaneously has the characteristics of high installation efficiency, short construction period, high fault tolerance rate, high stator core installation quality and the like.

Description

Nested combination formula stator frame of marine floated trend can generator

Technical Field

The utility model relates to the technical field of tidal current energy generators, in particular to a nested combined stator base of an offshore suspended tidal current energy generator.

Background

The offshore suspended tidal current energy generator has the characteristics of large shaft body ratio, relatively long rotating shaft, more internal parts and short space due to the structural characteristics of the generator. The stator frame is welded at the inner side of the cabin or the stator frame and the cabin are designed into a whole directly. Two problems exist with these two stator frame configurations: firstly, lamination inserting of a stator core is required to be carried out in a cabin, because tidal current energy generators have more internal parts and less space, no matter a structural form that a single stator base is welded on the cabin or a structural form that the stator base and the cabin are directly designed into a whole, the installation space which can be provided is very limited, a plurality of persons cannot work simultaneously, lamination inserting of the stator core is required to be completed in a very narrow space, the construction difficulty is high, the period is long, any auxiliary electrical equipment and large-scale moulds cannot be used, and the installation quality is difficult to ensure; secondly, the passenger cabin bears the operating stress too big, no matter be the structural style of single stator frame welding on the passenger cabin or directly design stator frame and passenger cabin into an organic whole structural style, mechanical vibration and the electromagnetic thermal expansion that the unit produced when moving all can directly transmit to the passenger cabin on, make the passenger cabin become the main person who bears the operating stress, because the passenger cabin itself designs a large amount of sealed gum covers, seal water welding seam sealing mechanism such as, bear the unit operating stress for a long time and can cause stress impact to these sealing mechanism, lead to sealed welding seam fracture even, sealing mechanism warp, there is the leakage hidden danger.

Disclosure of Invention

In view of the above, the present invention aims to disclose a nested combined stator frame of an offshore suspended tidal current energy generator, which has the characteristics of better overall rigidity, capability of effectively absorbing vibration generated during stator operation, capability of reducing the influence of stator operation vibration and electromagnetic thermal expansion on the whole cabin by internally digesting the electromagnetic thermal expansion generated during stator core operation through the structural characteristics of the frame, high installation efficiency, short period, high stator core installation quality, and the like, and the technical scheme of the present invention is as follows: the utility model is composed of an outer machine base, an inner machine base, a bolt A, a bolt B, a locking nut, a bolt C, a single-lug stop washer A, a limit ring, a bolt D and a single-lug stop washer B, wherein the outer machine base is placed into a cabin from left to right in the horizontal direction, the outer machine base and the cabin are tightly held by the bolt B and the locking nut, the inner machine base is placed into the center of the outer machine base from right to left in the horizontal direction, the inner machine base and the outer machine base are tightly held by the bolt A, the limit ring and the outer machine base are tightly held by the bolt C, the limit ring and the inner machine base are tightly held by the bolt D, finally the bolt C is locked by the single-lug stop washer A, and the bolt D is locked by the single-lug stop washer B.

In the nested combined stator base of the offshore suspended tidal current energy generator, the whole outer base is in an outer hexagon shape and an inner circle shape, the outer base is composed of a ring plate A, a vertical rib A, a ring plate B, a vertical rib B, a ring plate C, a vertical rib C, a ring plate D and a seat ring into a whole, the ring plate A is vertically placed, 6 vertical ribs A are uniformly distributed by taking the center of the ring plate A as the circle center circumference and are firmly welded with the right side face of the ring plate A, the ring plate B is placed from right to left and is concentric with the ring plate A, the vertical rib A is firmly welded with the left side face of the ring plate B, the 6 vertical ribs B are uniformly distributed by taking the center of the ring plate B as the circle center circumference and are firmly welded with the right side face of the ring plate B, the seat ring is placed from right to left and is concentric with the ring plate B and is welded on the right side of the ring plate B, the ring plate C is placed from right to left and is concentric with the ring plate B and is firmly welded with the contact faces of the vertical ribs B and the seat ring plate C, then 6 vertical ribs C are uniformly distributed on the circumference by taking the center of the ring plate C as the circle center and are firmly welded with the right side face of the ring plate C, finally, the ring plate D is put in from right to left and is concentric with the ring plate C, and the contact face of the ring plate D and the vertical ribs C is firmly welded to form a whole.

In the nested combined stator base of the offshore suspended tidal current energy generator, the outer edge of the ring plate A is hexagonal, and the inner edge of the ring plate A is circular.

In the nested combined stator base of the offshore suspended tidal current energy generator, the outer edge of the ring plate B is hexagonal, the inner edge of the ring plate B is circular, and 24 screw holes A matched with the bolts C are uniformly distributed on the circumference of the surface of the left side.

In the nested combined stator base of the offshore suspended tidal current energy generator, the outer edge of the ring plate C is hexagonal, and the inner edge of the ring plate C is circular.

In the nested combined stator base of the offshore suspended tidal current energy generator, the outer edge of the ring plate D is hexagonal, the inner edge of the ring plate D is circular, and 18 through holes A matched with the bolts B are uniformly distributed on the circumference.

In the nested combined stator base of the offshore suspended tidal current energy generator, the seat ring is in a thin-wall cylindrical shape, and 10 groups of 30 through holes B matched with the bolts A are uniformly distributed on the circumference.

In foretell marine floated trend can generator nestification combination formula stator frame, interior base whole be the cylinder, constitute wholly by crown plate E, strengthening rib, crown plate F, with crown plate E vertical placing, place 10 strengthening ribs levels to use the center of crown plate E as centre of a circle circumference equipartition, then weld the strengthening rib with the right flank of crown plate E firmly, put into crown plate F from the right side left side again, concentric with crown plate E, and weld the strengthening rib with the left flank of crown plate F firmly, form wholly.

In the nested combined stator base of the offshore suspended tidal current energy generator, the ring plate E is annular, and 24 screw holes B matched with the bolts D are uniformly distributed on the circumference of the left side surface.

In the nested combined stator base of the offshore suspended tidal current energy generator, the reinforcing ribs are cuboid, and 3 screw holes C matched with the bolts A are horizontally distributed on the upper surface of the reinforcing ribs.

In the nested combined stator base of the offshore suspended tidal current energy generator, the limiting ring is in a circular ring shape, 24 through holes C matched with the bolts C are uniformly distributed on the circumference, and 24 through holes D matched with the bolts D are uniformly distributed on the circumference.

Compared with the prior art, the utility model has the beneficial effects that:

1. compared with the traditional installation mode that the lamination inside the cabin is required to be installed off line, the utility model can realize the installation of the lamination outside the cabin in the true sense. During installation, stator core lamination off-line installation is carried out on the inner machine base in the open factory building, and due to the fact that space and position are not limited, a plurality of persons can operate simultaneously, large auxiliary electrical equipment and an external reinforcing mould can be used, installation quality can be guaranteed, and installation period can be shortened; after the outer machine base and the cabin are well jointed and connected, the inner machine base and the outer machine base which finish the lamination inserting of the stator core are jointed and connected, and the whole installation process is convenient, rapid and efficient.

2. When the unit operates, vibration and thermal expansion generated by the electromagnetic effect and the mechanical effect of the rotor of the stator core can be completely transmitted to the outer base through the inner base, the outer base adopts the structural design of inner circular and outer hexagon, the outer base has better rigidity and vibration absorption capacity, and the vibration and the thermal expansion transmitted by the inner base can be effectively absorbed, so that the outer base becomes a stress receiver for all vibration and thermal expansion, most vibration and stress are absorbed, meanwhile, the connecting position of the outer base and the cabin is positioned at the tail end of the whole outer base and is far away from the inner base, and the vibration and the thermal expansion transmitted by the inner base can not be continuously transmitted to the cabin after being integrally absorbed by the outer base, thereby achieving the purpose of protecting the cabin from the influence of operating stress.

3. After the spacing ring is installed, horizontal relative displacement of the inner machine base and the outer machine base can be limited, so that horizontal shearing force applied to the bolt A is effectively reduced, fatigue of materials caused by excessive shearing force applied to the bolt A is prevented, and overall stability is effectively improved.

Drawings

Fig. 1 is a detailed diagram of a nested combined stator base of an offshore suspended tidal current energy generator.

Fig. 2 is an enlarged view a of fig. 1.

Fig. 3 is a detailed view of the outer housing.

Fig. 4 is a view from direction H of fig. 3.

Fig. 5 is a view from direction B of fig. 3.

Fig. 6 is a view in the direction C of fig. 3.

Fig. 7 is a view from direction D of fig. 3.

Fig. 8 is a detailed view of the inner mount.

Fig. 9 is a view from direction E of fig. 8.

Fig. 10 is a view from direction F of fig. 8.

FIG. 11 is a detail view of the stop collar.

Fig. 12 is a view from direction G of fig. 11.

The notation in the figure is: 1-an outer machine base; 2-inner machine base; 3-bolt A; 4-bolt B; 5-a locking nut; 6-bolt C; 7-single lug stop washer a; 8-a limit ring; 9-bolt D; 10-single lug stop washer B; 11-ring plate A; 12-stud A; 13-ring plate B; 14-stud B; 15-ring plate C; 16-studs C; 17-ring plate D; 18-a seat ring; 19-screw hole A; 20-through hole B; 21-via a; 22-ring plate E; 23-reinforcing ribs; 24-ring plate F; 25-screw hole B; 26-screw hole C; 27-via C; 28-through hole D; 29-the cockpit; 30-a stator core; 31-rotor.

Detailed Description

The utility model is further described with reference to the following figures and detailed description.

It is to be understood that: in the description of the present invention, terms indicating positional relationships or orientations, such as "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, are based on the positional relationships or orientations shown in the drawings for the convenience of understanding the present invention, and do not indicate or imply that the components referred to must have a specific orientation or position and be constructed and operated in a specific orientation, and thus, are not to be construed as limiting the present invention.

As shown in fig. 1 and 2, an offshore suspended tidal current energy generator nested combined stator frame is composed of an outer frame 1, an inner frame 2, a bolt A3, a bolt B4, a locking nut 5, a bolt C6, a single-lug stop washer a7, a limit ring 8, a bolt D9 and a single-lug stop washer B10, wherein the outer frame 1 is placed into a cabin 29 from left to right in the horizontal direction, the outer frame 1 and the cabin 29 are fastened by using a bolt B4 and a locking nut 5, the inner frame 2 is placed into the center of the outer frame 1 from right to left in the horizontal direction, the inner frame 2 and the outer frame 1 are fastened by using a bolt A3, the limit ring 8 and the outer frame 1 are fastened by using a bolt C6, the limit ring 8 and the inner frame 2 are fastened by using a bolt D9, the bolt C6 is locked by using a single-lug stop washer a7, and the bolt B10 and a bolt D9 are locked by using a single-lug stop washer a bolt B10. The outer machine base 1 and the inner machine base 2 are connected simply and conveniently, the whole process does not need to be welded by fire, the inner machine base 2 can separately carry out lamination inserting of the stator core 30 outside the cabin 29, the installation quality can be ensured, and the installation period can be shortened; the connecting position of the outer engine base 1 and the cabin 29 is at the tail end of the whole outer engine base 1 and is far away from the inner engine base 2, and the vibration and thermal expansion transmitted from the inner engine base 2 can not be transmitted to the cabin 29 after being absorbed by the whole outer engine base 1, so that the aim of protecting the cabin 29 from the influence of operation stress is fulfilled.

As shown in fig. 3, 4, 5, 6, and 7, the outer housing 1 is an outer hexagon and an inner circle, and is composed of a ring plate a11, a stud a12, a ring plate B13, a stud B14, a ring plate C15, a stud C16, a ring plate D17, and a race 18, the ring plate a11 is vertically placed, 6 studs a12 are uniformly welded to the right side of the ring plate a 9 with the center of the ring plate a11 as the center of the circle, the ring plate B13 is placed from right to left, the ring plate B13 is concentric with the ring plate a11, the studs a12 are welded to the left side of the ring plate B13, 6 studs B14 are uniformly welded to the center of the ring plate B13 and to the right side of the ring plate B13, the race 18 is placed from right to left, the race 18 is welded to the ring plate B13, the right side of the ring plate B13 is welded to the center of the ring plate B13, the ring plate B13 is welded to the center of the circle, the ring plate B13 is welded to the center of the ring plate C13, the ring plate B13, the ring plate C13 is welded to the center of the ring plate 13, and the ring plate D17 is placed from right to left and is concentric with the ring plate C15, and the contact surfaces of the ring plate D17 and the vertical ribs C16 are welded firmly to form a whole. The outer edge of the ring plate A11 is hexagonal, and the inner edge is circular; the outer edge of the ring plate B13 is hexagonal, the inner edge is circular, and 24 screw holes A19 matched with the bolts C6 are uniformly distributed on the circumference of the left side surface; the outer edge of the ring plate C15 is hexagonal, and the inner edge is circular; the outer edge of the ring plate D17 is hexagonal, the inner edge is circular, and 18 through holes A21 matched with the bolts B4 are uniformly distributed on the circumference; the seat ring 18 is in a thin-wall cylindrical shape, and 10 groups of 30 through holes B20 matched with bolts A3 are evenly distributed on the circumference. The outer machine base 1 adopts the integral structure design of inner circle and outer hexagon, has better rigidity and vibration absorption capacity, and can effectively absorb vibration and thermal expansion transmitted by the inner machine base 2.

As shown in fig. 8, 9, and 10, the inner base 2 is cylindrical and is formed by a ring plate E22, reinforcing ribs 23, and a ring plate F24, the ring plate E22 is vertically placed, the 10 reinforcing ribs 23 are horizontally placed, and are uniformly distributed around the center of the ring plate E22, the reinforcing ribs 23 are firmly welded to the right side of the ring plate E22, the ring plate F24 is placed from right to left and is concentric with the ring plate E22, and the reinforcing ribs 23 are firmly welded to the left side of the ring plate F24, so as to form a whole. The ring plate E22 is circular, and 24 screw holes B25 matched with the bolts D9 are evenly distributed on the circumference of the left side surface; the reinforcing rib 23 is in a cuboid shape, and 3 screw holes C26 matched with the bolts A3 are horizontally distributed on the upper surface. Interior frame 2 wholly adopts the cylindrical structure design, can fully laminate with stator core 30, and when furthest's assurance stator core 30 rigidity demand, can also transmit whole vibration and thermal energy to outer frame 1, prevent stator core 30 self because stress transmission is not enough to produce the deformation risks such as stress inner wrap leads to string piece, bending.

As shown in fig. 11 and 12, the stop ring 8 has a circular ring shape, and 24 through holes C27 are uniformly distributed on the circumference of the stop ring and are engaged with the bolts C6, and 24 through holes D28 are uniformly distributed on the circumference of the stop ring and are engaged with the bolts D9. The spacing ring 8 is spacing to the horizontal relative displacement of interior frame 2 and outer frame 1 to effectively reduce the horizontal shear force that bolt A3 received, prevent that bolt A3 from receiving the material that too much shear stress leads to tired, effectively improve overall stability.

Finally, the scope of protection of the utility model is not limited to the embodiments described above. It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the scope or spirit of the utility model. It is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.

Claims

1. The nested combined stator base of the offshore suspended tidal current energy generator is characterized in that: the inner machine base is characterized by comprising an outer machine base (1), an inner machine base (2), a bolt A (3), a bolt B (4), a locking nut (5), a bolt C (6), a single-lug stop washer A (7), a limiting ring (8), a bolt D (9) and a single-lug stop washer B (10) which form a whole, the outer machine base (1) is placed into a cabin (29) from left to right in the horizontal direction, the outer machine base (1) and the cabin (29) are tightly clamped by the bolt B (4) and the locking nut (5), the inner machine base (2) is placed into the center of the outer machine base (1) from right to left in the horizontal direction, the inner machine base (2) and the outer machine base (1) are tightly clamped by the bolt A (3), the limiting ring (8) and the outer machine base (1) are tightly clamped by the bolt C (6), the limiting ring (8) and the inner machine base (2) are tightly clamped by the bolt D (9), and the single-lug stop washer A (7) is used for locking the bolt C (6), the bolt D (9) is locked using a single lug stop washer B (10).

2. The nested combination type stator frame of the offshore suspended tidal current energy generator as claimed in claim 1, wherein: the outer machine base (1) is integrally in an outer hexagon shape and an inner circle shape, and is composed of a ring plate A (11), a vertical rib A (12), a ring plate B (13), a vertical rib B (14), a ring plate C (15), a vertical rib C (16), a ring plate D (17) and a seat ring (18) into a whole, the ring plate A (11) is vertically placed, 6 vertical ribs A (12) are uniformly distributed by taking the center of the ring plate A (11) as the circle center circumference and are firmly welded with the right side face of the ring plate A (11), then the ring plate B (13) is placed from right to left, the ring plate B (13) is concentric with the ring plate A (11), the vertical ribs A (12) are firmly welded with the left side face of the ring plate B (13), then the 6 vertical ribs B (14) are uniformly distributed by taking the center of the ring plate B (13) as the circle center and are firmly welded with the right side face of the ring plate B (13), and simultaneously the seat ring plate (18) is placed from right to left, is concentric with the ring plate B (13) and is welded with the ring plate B (13), and then putting the ring plate C (15) from right to left, concentric with the ring plate B (13), firmly welding the ring plate C (15) with the contact surfaces of the studs B (14) and the seat ring (18), uniformly distributing 6 studs C (16) around the center of the ring plate C (15) as the circle center, firmly welding the studs C (15) with the right side surface of the ring plate C (15), finally putting the ring plate D (17) from right to left, concentric with the ring plate C (15), and firmly welding the ring plate D (17) with the contact surfaces of the studs C (16) to form a whole.

3. The nested combination type stator frame of the offshore suspended tidal current energy generator as claimed in claim 2, wherein: the outer edge of the ring plate A (11) is hexagonal, and the inner edge is circular; the outer edge of the ring plate B (13) is hexagonal, the inner edge of the ring plate B is circular, and 24 screw holes A (19) matched with the bolts C (6) are uniformly distributed on the circumference of the left side surface; the outer edge of the ring plate C (15) is hexagonal, and the inner edge is circular; the outer edge of the ring plate D (17) is hexagonal, the inner edge of the ring plate D (17) is circular, and 18 through holes A (21) matched with the bolts B (4) are uniformly distributed on the circumference; the seat ring (18) is in a thin-wall cylindrical shape, and 10 groups of 30 through holes B (20) matched with the bolts A (3) are uniformly distributed on the circumference.

4. The nested combination type stator frame of the offshore suspended tidal current energy generator as claimed in claim 1, wherein: interior frame (2) whole be the cylinder, by crown plate E (22), strengthening rib (23), crown plate F (24) constitute wholly, with vertical the placing of crown plate E (22), place 10 strengthening ribs (23) levels, and use the center of crown plate E (22) as centre of a circle circumference equipartition, then weld the right flank of strengthening rib (23) and crown plate E (22) firmly, put into crown plate F (24) from right side to left again, with crown plate E (22) concentric, and weld the left flank of strengthening rib (23) and crown plate F (24) firmly, form wholly.

5. The nested combination type stator frame of the offshore suspended tidal current energy generator as claimed in claim 4, wherein: the ring plate E (22) is annular, and 24 screw holes B (25) matched with the bolts D (9) are uniformly distributed on the circumference of the left side surface; the reinforcing rib (23) is of a cuboid shape, and 3 screw holes C (26) matched with the bolts A (3) are horizontally distributed on the upper surface of the reinforcing rib.

6. The nested combination type stator frame of the offshore suspended tidal current energy generator as claimed in claim 1, wherein: the limiting ring (8) is in a circular ring shape, 24 through holes C (27) matched with the bolts C (6) are uniformly distributed on the circumference, and 24 through holes D (28) matched with the bolts D (9) are uniformly distributed on the circumference.