Non-slip marine shaft generator expansion sleeve

Abstract

The utility model discloses a non-slip marine shaft generator expansion sleeve, which relates to the technical field of shaft generators and comprises a ship spindle, a shaft generator rotor and an expansion sleeve. The expansion sleeve comprises an inner-layer locking sleeve, an outer-layer left lantern ring, an outer-layer right lantern ring, a left expansion wedge ring and a right expansion wedge ring; the utility model has the advantages of simple installation, convenient maintenance and low maintenance cost, and greatly improves the stability of the connection between the shaft generator rotor and the ship main shaft while ensuring the realization of all-directional uniform expansion by being matched and fixed with the wedge-shaped groove on the ship main shaft, thereby improving the service life of the shaft generator rotor and the ship main shaft. The phenomena of loosening and slipping caused by factors such as vibration and impact in the operation process of a ship are effectively avoided, and it is ensured that the shaft generator can stably and reliably operate under various complex working conditions; the shaft generator expansion device is flexible in expansion adjustment, can adapt to different working conditions, ensures that the shaft generator is always in an optimal working state, improves the energy utilization efficiency, and reduces the operation cost of a ship.

Description

Technical Field

[0001] This utility model relates to the field of shaft-driven generator technology, specifically a non-slipping marine shaft-driven generator expansion sleeve. Background Technology

[0002] In the current technology, the application of marine shaft generators has become increasingly common. Therefore, the stable operation of marine shaft generators, as key power supply equipment, is of utmost importance during the operation of ships.

[0003] Traditional marine shaft-driven generator expansion sleeves have many drawbacks: On the one hand, ships are subject to complex factors such as wave impact, continuous hull vibration, and significant temperature and humidity changes during navigation, making traditional expansion sleeves prone to slippage. This not only reduces power generation efficiency but may also damage generator components, seriously threatening the stability of the ship's power system. On the other hand, traditional expansion sleeves are mostly integral structures, requiring a large operating space and complex processes for installation and disassembly. This makes operation extremely difficult within the limited space of a ship, increasing maintenance and time costs.

[0004] Furthermore, in the harsh environment of high salinity in the ocean, traditional expansion sleeves are not corrosion resistant enough and are prone to rusting, which further weakens the connection performance and service life. Utility Model Content

[0005] The purpose of this invention is to provide a non-slip marine shaft-driven generator expansion sleeve to solve the slippage problem of traditional expansion sleeves mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a non-slip marine shaft-driven generator expansion sleeve, comprising a ship's main shaft, on which a shaft-driven generator rotor is fixedly mounted, and at both ends of the shaft-driven generator rotor, expansion sleeves are respectively provided on the ship's main shaft; on the outer wall of the ship's main shaft, at the installation positions of the two expansion sleeves, two sets of mirror-symmetrical expansion sleeve fixing grooves are provided; the expansion sleeve includes an inner locking sleeve installed close to the ship's main shaft, an outer left collar and an outer right collar are provided on the outer side of the inner locking sleeve, and a left expansion wedge ring is provided between the inner locking sleeve and the outer left collar, and a right expansion wedge ring is provided between the inner locking sleeve and the outer right collar.

[0007] Preferably, each set of expansion sleeve fixing grooves includes two or more wedge-shaped grooves evenly distributed in a ring, and the end of each wedge-shaped groove away from the other set of expansion sleeve fixing grooves is a concave wedge-shaped apex.

[0008] Preferably, the inner locking sleeve includes two semi-circular locking rings that can form a complete circular ring. The two locking rings have grooves at their contacting ends that can mesh with each other and are connected as a whole by the meshing of the grooves. A connecting bolt is inserted through the two grooves. Each locking ring has a recessed groove on its left and right sides near the inner ring surface. An inner locking plate is fitted into these grooves. The inner locking plate includes a groove slider that can engage with the groove. An expansion fixing plate extending to the left and right sides is fixedly connected to the groove slider near the axial side of the inner locking sleeve. Multiple expansion bolt holes are evenly distributed on the two locking rings.

[0009] Preferably, the inner locking plate is provided corresponding to the wedge-shaped groove, and the size of the inner locking plate is smaller than that of the wedge-shaped groove.

[0010] Preferably, the outer left collar includes the left half of two semi-circular collars, and the contact ends of the two left half collars are connected as one piece by groove engagement, and bolts are used to reinforce the connection at the connection point; the outer surface of the outer left collar is a circular surface, and the inner surface is gradually thickened from left to right towards the axis.

[0011] Preferably, the outer right collar has the same structure as the outer left collar and is arranged in a mirror image symmetrically; the right half collar includes two semi-circular rings, and the contact ends of the two right half collars are connected as one piece by groove engagement, and the connection is reinforced with bolts at the connection point; the outer surface of the outer right collar is a circular surface, and the inner surface is gradually thickened from right to left towards the axis.

[0012] Preferably, the left tightening wedge ring includes two semi-circular left tightening half-rings, and each left tightening half-ring has multiple through holes coaxial with the tightening bolt holes. The inner and outer sides of the left tightening half-rings are arranged from left to right towards the opposite side, so that the cross-section of the left tightening half-ring is wedge-shaped.

[0013] Preferably, the structure of the right tightening wedge ring is the same as that of the left tightening wedge ring and is mirrored, including two semi-circular right tightening half-rings, and each right tightening half-ring has multiple threaded through holes coaxial with the tightening bolt holes. The inner and outer sides of the right tightening half-ring are arranged to gradually move towards the opposite side from right to left, so that the cross-section of the right tightening half-ring is wedge-shaped.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. The expansion sleeve provided by this utility model adopts a split structure, which is simple to install and easy to maintain. By matching and fixing it with the wedge-shaped groove on the main shaft of the ship, it ensures uniform expansion in all directions and greatly improves the stability of the connection between the shaft-driven generator rotor and the main shaft of the ship. It effectively avoids loosening and slippage caused by vibration, impact and other factors during the operation of the ship, and ensures that the shaft-driven generator can operate stably and reliably under various complex working conditions.

[0016] 2. The modular design of the expansion sleeve means that if a component of the expansion sleeve is damaged, the entire sleeve does not need to be replaced; only the damaged component needs to be replaced. This greatly reduces maintenance costs and time, and improves the operational efficiency of the vessel.

[0017] 3. The expansion adjustment of this utility model is flexible and can adapt to different working conditions. By adjusting the expansion bolt, the expansion tightness of the expansion sleeve can be easily adjusted to meet the requirements of the shaft-driven generator under different navigation states and load conditions of the ship, ensuring that the shaft-driven generator is always in the best working state, improving energy utilization efficiency and reducing the operating cost of the ship. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the new installation of this utility model;

[0019] Figure 2 This is a sectional view of the expansion sleeve;

[0020] Figure 3 This is a schematic diagram of the ship's main shaft.

[0021] Figure 4 Left view of the expansion sleeve;

[0022] Figure 5 Left view of the inner locking sleeve;

[0023] Figure 6 for Figure 5 Sectional view of A in the middle;

[0024] Figure 7 Left view of the left expansion wedge ring

[0025] Figure 8 Right view of the right expansion wedge ring;

[0026] Figure 9 Left view of the outer left collar;

[0027] Figure 10 Right view of the outer right collar;

[0028] Figure 11 This is a cross-sectional view of the inner locking sleeve;

[0029] In the diagram: Ship main shaft-1, expansion sleeve fixing groove-11, wedge groove-12, shaft-driven generator rotor-2, expansion sleeve-3, inner locking sleeve-31, locking collar-311, groove-312, connecting bolt-313, groove-314, inner locking plate-315, groove slider-316, expansion fixing plate-317, expansion bolt hole-318, outer left collar-32, left half collar-321, outer right collar-33, right half collar-331, left expansion wedge ring-34, left expansion half ring-341, through hole-342, right expansion wedge ring-35, right expansion half ring-351, threaded through hole-352. Detailed Implementation

[0030] To enable those skilled in the art to better understand the technical solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings and specific embodiments.

[0031] Please refer to Figure 1-11 , Figure 1 This is a schematic diagram of the new installation of this utility model; Figure 2 This is a sectional view of the expansion sleeve; Figure 3 This is a schematic diagram of the ship's main shaft. Figure 4 Left view of the expansion sleeve; Figure 5 Left view of the inner locking sleeve;

[0032] Figure 6 for Figure 5 Sectional view of A in the middle; Figure 7 Left view of the left expansion wedge ring Figure 8 Right view of the right expansion wedge ring; Figure 9 Left view of the outer left collar; Figure 10 Right view of the outer right collar; Figure 11 This is a cross-sectional view of the inner locking sleeve.

[0033] This utility model provides a non-slip marine shaft generator expansion sleeve, which is used to achieve stable torque transmission of the shaft generator under complex marine working conditions and eliminate slippage. It includes a ship main shaft 1, on which a shaft generator rotor 2 is sleeved and fixed. Expansion sleeves 3 are respectively provided at both ends of the shaft generator rotor 2 and sleeved on the ship main shaft 1, for auxiliary locking and fixing of the shaft generator rotor 2.

[0034] On the outer wall of the ship's main shaft 1, two sets of mirror-symmetrical expansion sleeve fixing grooves 11 are provided at the installation positions of the two expansion sleeves 3. Each set of expansion sleeve fixing grooves 11 includes two or more wedge-shaped grooves 12 evenly distributed in a ring. The end of each wedge-shaped groove 12 away from the other set of expansion sleeve fixing grooves 11 is a concave wedge-shaped apex. The expansion sleeves 3 are installed and fixed through the wedge-shaped grooves 12 to ensure that the expansion sleeves 3 do not slip after installation.

[0035] The expansion sleeve 3 includes an inner locking sleeve 31 installed close to the main shaft 1 of the ship. An outer left collar 32 and an outer right collar 33 are sleeved on the outer side of the inner locking sleeve 31. A left expansion wedge ring 34 is provided between the inner locking sleeve 31 and the outer left collar 32, and a right expansion wedge ring 35 is provided between the inner locking sleeve 31 and the outer right collar 33.

[0036] The inner locking sleeve 31 includes two semi-circular locking rings 311, which can form a complete ring. At their contacting ends, grooves 312 are respectively provided for mutual engagement. The two grooves 312 are connected as a single unit through the groove engagement. Connecting bolts 313 are also provided through the two grooves 312 to enhance the connection strength of the locking rings 311. Each locking ring 311 has a recessed groove 314 on its left and right sides near the inner ring surface. An inner locking plate 315 is fitted through these grooves 314. The inner locking plate 315 includes a groove slider 316 that can engage with the groove 314. Expansion fixing plates 317 extending to the left and right sides are fixedly connected to the groove slider 316 near the axial side of the inner locking sleeve 311. Multiple expansion bolt holes 318 are evenly provided on the two locking rings 311.

[0037] The inner locking plate 315 is correspondingly provided with the wedge-shaped groove 12, and the size of the inner locking plate 315 is smaller than the size of the wedge-shaped groove 12, so that the inner locking plate 315 can be embedded into the wedge-shaped groove 12.

[0038] The outer left collar 32 includes two semi-circular left half collars 321. The contact ends of the two left half collars 321 are connected as one piece by groove meshing, and the connection is reinforced by bolts. The outer surface of the outer left collar 32 is a circular surface, and the inner surface is gradually thickened from left to right towards the axis.

[0039] The outer right collar 33 has the same structure as the outer left collar 32 and is arranged in a mirror image symmetrical arrangement; the right half collar 331 includes two semi-circular rings, and the contact ends of the two right half collars 331 are connected into one piece by groove engagement, and the connection is reinforced with bolts at the connection point; the outer surface of the outer right collar 33 is a circular surface, and the inner surface is gradually thickened from right to left towards the axis.

[0040] The left tightening wedge ring 34 includes two semi-circular left tightening half-rings 341, and each left tightening half-ring 341 has multiple through holes 342 coaxial with the tightening bolt holes 318. The inner and outer sides of the left tightening half-ring 341 are arranged from left to right towards the opposite side, so that the cross-section of the left tightening half-ring 341 is wedge-shaped.

[0041] The structure of the right expansion wedge ring 35 is the same as that of the left expansion wedge ring 34 and is mirrored. It includes two semi-circular right expansion half-rings 351, and each right expansion half-ring 351 has multiple threaded through holes 352 coaxial with the expansion bolt holes 318. The inner and outer sides of the right expansion half-ring 351 are arranged from right to left towards the opposite side, so that the cross-section of the right expansion half-ring 351 is wedge-shaped.

[0042] In use, the inner locking plate 315 is fitted onto the inner side of the locking collar 311. Then, the two halves of the locking collar 311 are fitted onto the ship's main shaft 1 and connected together by the connecting bolts 313. The collar is then moved to the expansion sleeve fixing groove 11. Next, the outer left collar 32 and outer right collar 33 are fitted onto the outer side of the ship's main shaft 1 and connected together by bolts. Finally, the left expansion wedge ring 34 and right expansion wedge ring 35 are inserted into the inner... The locking sleeve 31 is connected to the outer left collar 32 and the outer right collar 33. A long bolt is used to pass through the through hole 342 and the expansion bolt hole 318 in sequence and is threaded to the threaded through hole 352. As the long bolt is continuously tightened to the threaded through hole 352, the left expansion wedge ring 34 and the right expansion wedge ring 35 gradually move closer to the middle. As they move closer, the inner locking plate 315 is gradually pressed into the wedge-shaped groove 12, thus completing the expansion and fixing of the entire expansion sleeve.

[0043] Although embodiments of the present invention have been shown and described, it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, it will be understood by those skilled in the art that all other embodiments obtained by making various changes, modifications, substitutions and alterations to these embodiments without departing from the principles and spirit of the present invention and without creative effort are within the scope of protection of the present invention.

Claims

1. A non-slip marine shaft generator expansion sleeve characterized by: The system includes a ship main shaft (1), on which a shaft-driven generator rotor (2) is fixedly mounted. At both ends of the shaft-driven generator rotor (2), expansion sleeves (3) are respectively mounted on the ship main shaft (1). On the outer wall of the ship main shaft (1), at the installation positions of the two expansion sleeves (3), two sets of mirror-symmetrical expansion sleeve fixing grooves (11) are provided. The expansion sleeve (3) includes an inner locking sleeve (31) installed close to the ship main shaft (1) on its inner side. An outer left collar (32) and an outer right collar (33) are mounted on the outer side of the inner locking sleeve (31). A left expansion wedge ring (34) is provided between the inner locking sleeve (31) and the outer left collar (32), and a right expansion wedge ring (35) is provided between the inner locking sleeve (31) and the outer right collar (33).

2. The over-tightening sleeve for a shaft-driven generator of a non-slip ship according to claim 1, characterized in that: Each set of expansion sleeve fixing grooves (11) includes two or more wedge-shaped grooves (12) evenly distributed in a ring, and the end of each wedge-shaped groove (12) away from the other set of expansion sleeve fixing grooves (11) is a concave wedge-shaped top.

3. The over-tightening sleeve for a shaft-driven generator for a non-slip boat according to claim 2, characterized in that: The inner locking sleeve (31) includes two semi-circular locking rings (311) that can form a complete ring. The two locking rings (311) are respectively provided with grooves (312) that can mesh with each other at the contacting end and are connected as a whole by the meshing of the grooves. A connecting bolt (313) is provided through the two grooves (312). The locking rings (311) are provided with concave grooves on the left and right sides near the inner ring surface. (314) An inner locking plate (315) is fitted through the groove (314). The inner locking plate (315) includes a groove slider (316) that can be fitted with the groove (314). The groove slider (316) is fixedly connected to the axial side of the inner locking sleeve (31) with an expansion fixing plate (317) extending to the left and right sides. Multiple expansion bolt holes (318) are evenly arranged on the two locking sleeves (311).

4. The over-tightening sleeve for a shaft-driven generator for a non-slip boat according to claim 3, characterized in that: The inner locking plate (315) is correspondingly provided with the wedge-shaped groove (12), and the size of the inner locking plate (315) is smaller than the size of the wedge-shaped groove (12).

5. The over-tightened sleeve for a shaft-driven generator of a non-slip boat according to claim 4, characterized in that: The outer left collar (32) includes two semi-circular left collars (321). The contact ends of the two left collars (321) are connected as one piece by groove meshing, and bolts are used to reinforce the connection at the connection point. The outer surface of the outer left collar (32) is a circular surface, and the inner surface is gradually thickened from left to right towards the axis.

6. The over-tightening sleeve for a shaft-driven generator for a non-slip boat according to claim 5, characterized in that: The outer right collar (33) has the same structure as the outer left collar (32) and is arranged in a mirror image symmetrical arrangement; the right half collar (331) includes two semi-circular rings, and the contact ends of the two right half collars (331) are connected into one piece by groove meshing, and bolts are used to reinforce the connection at the connection point; the outer surface of the outer right collar (33) is a circular surface, and the inner surface is gradually thickened from right to left towards the axis.

7. The over-tightened sleeve of a shaft-driven generator for a non-slip boat according to claim 6, characterized in that: The left expansion wedge ring (34) comprises two semi-circular left expansion half rings (341), and a plurality of through holes (342) coaxial with the expansion bolt holes (318) are arranged on each left expansion half ring (341). The inner and outer sides of the left expansion half ring (341) are gradually arranged close to the opposite side from left to right, so that the cross section of the left expansion half ring (341) is wedge-shaped.

8. The over-tightened sleeve for a shaft-driven generator of a non-slip boat according to claim 7, characterized in that: The right expansion wedge ring (35) has the same structure as the left expansion wedge ring (34) and is mirror image arranged, comprising two semi-circular right expansion half rings (351), and a plurality of threaded through holes (352) coaxial with the expansion bolt holes (318) are arranged on each right expansion half ring (351). The inner and outer sides of the right expansion half ring (351) are gradually arranged close to the opposite side from right to left, so that the cross section of the right expansion half ring (351) is wedge-shaped.

Images