Marine split shaft generator shaft holding device

Abstract

The application discloses a split type shaft belt generator holding shaft device for a ship and relates to the technical field of ship power generation equipment. The device comprises two arc-shaped fastening parts which are fastened on a ship propeller shaft and a generator rotor to realize transmission cooperation. The fastening part comprises a first shell, a second shell and a plurality of friction blocks. The second shell is inserted into the first cavity of the first shell, and the friction blocks are arranged in the second cavity of the second shell. The two shells are respectively provided with aligned first and second through grooves for the friction blocks to pass through. One end of the first and second through grooves is respectively communicated with the outside. The friction blocks are provided with color development components which can adhere to the surface of the shaft or the rotor when abutting. The two shells are respectively provided with aligned first and second observation windows which penetrate through the corresponding shells. The application can intuitively monitor the wear and adhesion state of the friction blocks, the friction blocks are convenient to replace, the transmission is stable and reliable, and the maintenance cost is low.

Description

Technical Field

[0001] This invention belongs to the technical field of marine power generation equipment, and in particular relates to a marine split-shaft generator bearing device. Background Technology

[0002] Shaft-driven generators are core energy-saving devices in modern marine power systems. Connected to the propulsion shaft of the main engine, they utilize the engine's surplus power to drive the generator, effectively reducing fuel consumption, operating costs, and carbon emissions. They are widely used energy-saving devices in various civilian and commercial vessels. The shaft clamping device is the core transmission component of the shaft-driven generator, transmitting torque between the propulsion shaft and the generator rotor through friction. Its transmission efficiency and reliability directly affect the generator's power generation efficiency and operational stability.

[0003] During long-term operation, the internal friction transmission components of the shaft clamping device will continuously wear. As the wear increases, the tightness of the fit between the shaft clamping device and the shaft gradually decreases, making slippage very likely. Slippage not only causes serious power loss, significantly reduces the power generation efficiency of the shaft-driven generator, and increases fuel consumption, but also leads to rapid and accelerated wear of the friction components, further deteriorating the transmission condition. In severe cases, it can even cause transmission failure, affecting the stable operation of the ship's electrical system.

[0004] Currently, existing marine shaft clamping devices have two major drawbacks in practical use: First, the friction transmission components of existing bearing clamping devices are all hidden inside the housing, making it impossible to directly observe the wear condition of the friction components or whether slippage occurs between the bearing clamping device and the shaft from the outside. Slippage problems can usually only be inferred through indirect phenomena such as a decrease in generator output power and an increase in fuel consumption, resulting in a significant delay in detection. Often, by the time a problem is discovered, a large amount of power loss and energy waste has already occurred. Furthermore, it is impossible to predict wear trends in advance, and the device can only passively wait for a failure to occur before taking action, making preventative maintenance difficult and resulting in poor equipment reliability.

[0005] Secondly, when slippage is found in the bearing clamp, it is necessary to replace key transmission components such as the internal friction block. However, the existing bearing clamp has a complex housing structure, and the friction block is hidden inside the housing. When replacing it, a large number of connecting parts of the entire bearing clamp need to be disassembled, which is complicated and requires a lot of maintenance work.

[0006] In addition, existing bearing clamping devices have the problem of not being able to detect the contact status of friction components. After installation or maintenance, it is not possible to intuitively determine whether the friction block is completely in contact with the shaft surface, which can easily lead to problems such as poor contact and uneven contact pressure. This will not only further accelerate the wear of the friction block and cause slippage failure in advance, but also cause uneven wear of the friction block, shorten its service life and increase maintenance costs.

[0007] In summary, existing marine shaft-driven generator bearing clamps suffer from several technical drawbacks, including the inability to directly observe slippage, delayed detection of slippage leading to significant power loss, inconvenient replacement of key friction components, low maintenance efficiency, and high downtime costs. These shortcomings fail to meet the high reliability and ease-of-maintainability requirements of marine vessels at sea. Therefore, there is an urgent need to develop a new type of marine split-type shaft-driven generator bearing clamp that can directly monitor slippage and wear, facilitates friction component replacement, and ensures stable and reliable transmission. This would improve the operational reliability of shaft-driven generators, reduce maintenance difficulty and operating costs, and ensure the stable operation of the ship's power system. Summary of the Invention

[0008] The summary section of this application is intended to provide a brief overview of the concepts, which will be described in detail in the detailed description section below. This summary section is not intended to identify key or essential features of the claimed technical solutions, nor is it intended to limit the scope of the claimed technical solutions.

[0009] In order to overcome the shortcomings of the prior art, the present invention provides a marine split-shaft generator bearing device.

[0010] To achieve the above objectives, the present invention adopts the following technical solution: a marine split-type shaft generator bearing device, comprising two arc-shaped fastening segments, which fasten to the propulsion shaft of the ship and the rotor of the generator to form a transmission connection between the propulsion shaft and the rotor. The engaging flap includes a first housing, a second housing, and several friction blocks. The first housing has a first cavity, and the second housing is inserted into the first cavity. The second housing has a second cavity, and the friction blocks are disposed in the second cavity. The side wall of the first cavity has a first through groove for the friction blocks to pass through, and the side wall of the second cavity has a second through groove for the friction blocks to pass through. The first through groove and the second through groove are aligned with each other. One end of the first through groove and one end of the second through groove are respectively connected to the outside. The friction block is equipped with a color-developing component. When the friction block abuts against the propulsion shaft or rotor, the color-developing component applies color to the surface of the propulsion shaft or rotor. A first observation window is provided on both sides of the first through slot, and a second observation window is provided on both sides of the second through slot. The first observation window penetrates the first housing, and the second observation window penetrates the second housing. The first and second observation windows are aligned with each other.

[0011] Furthermore, a movable ring is provided in the second cavity, and multiple protrusions are provided on the movable ring. A guide block and a limiting plate are provided on the top of the friction block. When the movable ring rotates in the second cavity, the protrusions abut against the guide block and push the friction block out of the second through groove.

[0012] Furthermore, the movable ring is provided with multiple third observation windows, which are aligned with the first observation window and have a larger cross-section than the first observation window; a retainer is provided on the inner wall of the second cavity, and one end of the movable ring is inserted into the retainer.

[0013] Furthermore, the color developing component includes a pigment pack and a coloring block. The friction block is provided with a first groove and a second groove. The first groove is arranged along the width direction of the friction block, and the second groove is located on top of the first groove. The pigment pack is located in the second groove, and the coloring block is located in the first groove. The bottom of the pigment pack is provided with multiple discharge holes.

[0014] Furthermore, the friction block is provided with a movable groove, the guide block is provided in the movable groove, the guide block is provided with a first push rod, the first push rod passes through the second groove, and one end of the first push rod is provided with a first push plate; the guide block is provided with a third groove, the movable groove is provided with a first support block and a first spring, the first spring is sleeved on the first support block and abuts against the top of the third groove, the third groove is provided with a second support block, and the second support block and the first support block are aligned.

[0015] Furthermore, a connecting post is provided in the second cavity. When the second housing is inserted into the first cavity, the connecting post abuts against the inner wall of the first cavity. The connecting post is fixed to the first housing by screws. A third cavity is provided on the connecting post. A first movable plate is provided in the third cavity. A second push rod is provided on the first movable plate. The second push rod extends out of the third cavity. A second push plate is provided at one end of the second push rod. A protruding plate is provided on the movable ring. An oil inlet cavity is provided on the side wall of the second housing. An oil inlet hole communicating with the third cavity is provided on the side wall of the oil inlet cavity. The oil inlet hole is located on one side of the first movable plate.

[0016] Furthermore, a mounting ring is provided on the side wall of the second cavity, and a fourth cavity is provided on the mounting ring. A second movable plate is provided inside the fourth cavity, and a connecting rod is provided on the second movable plate. The connecting rod extends out from the fourth cavity, and a toothed ring is provided at one end of the connecting rod. The toothed ring has multiple oblique tooth grooves, and multiple oblique teeth are provided on the inner wall of the movable ring. When the second movable plate moves in the fourth cavity, it drives the toothed ring to move so that the toothed ring aligns with the oblique teeth.

[0017] Furthermore, a connecting block is provided on the side wall of the second housing, and a connecting cavity is provided on the connecting block to connect the third cavity and the fourth cavity. A first connecting pipe is provided at one end of the connecting cavity, and the first connecting pipe passes through the third cavity and is located on the other side of the first movable plate.

[0018] Furthermore, the inner wall of the third cavity is provided with a guide frame and a through hole. The guide frame is provided with a sealing plate and a second spring. The sealing plate abuts against the side wall of the third cavity to seal the through hole. The first connecting pipe passes through the through hole, and one end of the first connecting pipe is provided with multiple slots. The side wall of the oil inlet cavity is provided with a second connecting pipe, which is connected to the fourth cavity. The second connecting pipe and the connecting cavity are located on both sides of the second movable plate.

[0019] Furthermore, the side wall of the snap-fit ​​flap is provided with a connecting strip, and the connecting strip is provided with a connecting groove. When two snap-fit ​​flaps are connected, a connecting piece is connected in the connecting groove, and the connecting piece is fixed in the connecting groove by screws.

[0020] The advantages of this invention are: This invention features a color-displaying component on the friction block, which, together with the first and second observation windows aligned on the housing, allows direct and intuitive observation of the wear state and fit of the friction block from the outside of the bearing assembly. This enables real-time monitoring of the wear progress of the friction block without disassembling the equipment, allowing for early detection of potential wear issues and preventative maintenance. It effectively avoids significant power loss and energy waste caused by delayed detection of slippage, and greatly improves the operational reliability of the shaft-driven generator.

[0021] This invention employs a double-layered, plug-in housing structure. The second housing is inserted into the cavity of the first housing, and the friction block is disposed within the cavity of the second housing, with a through slot communicating with the outside. When replacing the friction block, simply pull the second housing out of the first housing to directly remove and replace it, without disassembling the entire bearing assembly. This simple and quick operation significantly improves maintenance efficiency.

[0022] This invention adopts a segmented snap-fit ​​structure, which is easy to install. The double-layer shell structure is stable, the friction block is accurately positioned, which can ensure stable friction transmission force, high torque transmission efficiency, and strong operational reliability, and can meet the needs of long-term continuous operation of ships. Attached Figure Description

[0023] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application.

[0024] Furthermore, throughout the accompanying drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the elements are not necessarily drawn to scale.

[0025] In the attached diagram: Figure 1 This is a schematic diagram of the structure of a marine split-shaft generator bearing device in one embodiment of the present invention.

[0026] Figure 2 for Figure 1 The illustrated embodiment shows an overall sectional view of the marine split-shaft generator bearing assembly facing one direction.

[0027] Figure 3 for Figure 2 Enlarged view of point A in the image.

[0028] Figure 4 for Figure 1 An overall sectional view of the marine split-shaft generator bearing assembly in the illustrated embodiment, facing another direction.

[0029] Figure 5 for Figure 4 Enlarged view of point B in the image.

[0030] Figure 6 for Figure 1 A longitudinal sectional view of the marine split-shaft generator bearing device in the illustrated embodiment.

[0031] Figure 7 for Figure 6 Enlarged view of point C in the image.

[0032] Figure 8 for Figure 6 Enlarged view of point D in the image.

[0033] Figure 9 for Figure 6 Enlarged view of point E in the image.

[0034] Figure 10 for Figure 7 Enlarged view of point F in the image.

[0035] Figure 11 for Figure 1 A cross-sectional view of the second connecting pipe of the marine split-shaft generator bearing device in the illustrated embodiment.

[0036] Figure 12 for Figure 11 Enlarged view of point G in the image.

[0037] Figure 13 for Figure 11 Enlarged view of point H in the image.

[0038] Figure 14 for Figure 1 A schematic diagram of the gear ring of the marine split-shaft generator bearing device in the illustrated embodiment.

[0039] Figure 15 for Figure 14 Enlarged view of point I in the image.

[0040] Figure 16 for Figure 1A schematic diagram of the first housing of the marine split-shaft generator bearing device in the illustrated embodiment.

[0041] Figure 17 for Figure 1 A schematic diagram of the second housing of the marine split-shaft generator bearing device in the illustrated embodiment.

[0042] Figure 18 for Figure 1 A schematic diagram of the movable ring of the marine split-shaft generator bearing device in the illustrated embodiment.

[0043] The meanings of the reference numerals in the figure are as follows: 100. Engaging flap; 101. First housing; 1011. First through groove; 1012. First observation window; 1013. First cavity; 102. Second housing; 1021. Second observation window; 1022. Second through groove; 1023. Second cavity; 103. Connecting strip; 104. Connecting piece; 105. Oil inlet cavity; 1051. Upper cavity; 1052. Lower cavity; 106. Movable ring; 107. Protrusion; 108. Friction block; 109. Movable groove; 110. Guide block; 111. Limiting plate; 112. Protruding plate; 113. Third observation window; 114. Connecting post; 115. First movable plate; 116. Second push rod; 117. Second push plate; 118. Second... 119. Connecting pipe; 120. Guide frame; 121. Mounting ring; 122. Toothed ring; 123. Helical tooth; 124. Coloring block; 125. Connecting block; 126. Connecting cavity; 127. Second movable plate; 128. Connecting rod; 129. First support block; 130. First spring; 131. Second support block; 132. First push rod; 133. First push plate; 134. Pigment bag; 135. Sealing plate; 136. Second spring; 137. First connecting pipe; 1371. Slot; 138. Fourth cavity; 139. Connecting groove; 140. Retainer; 141. Through hole; 142. First groove; 143. Second groove; 144. Third groove; 145. Third cavity. Detailed Implementation

[0044] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.

[0045] It should also be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other.

[0046] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are used only to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependencies.

[0047] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0048] The names of messages or information exchanged between multiple devices in the embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of such messages or information.

[0049] This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0050] like Figure 1-18 As shown, a marine split-type shaft-driven generator mounting device includes two arc-shaped locking flaps 100. The two locking flaps 100 engage with the ship's propulsion shaft and the generator rotor to form a transmission connection between the propulsion shaft and the rotor. Utilizing the two locking flaps 100, the mounting device can be directly engaged with the outside of the propulsion shaft and generator rotor, eliminating the need for insertion through the end of the propulsion shaft. Installation and disassembly do not affect the ship's original power structure. It is adaptable to the installation requirements of propulsion shafts of different specifications, and on-site installation and maintenance are very convenient.

[0051] like Figure 2 , Figure 4 , Figure 6 , Figure 16 , Figure 17As shown, the engaging flap 100 includes a first housing 101, a second housing 102, and a plurality of friction blocks 108. The first housing 101 has a first cavity 1013, the second housing 102 is inserted into the first cavity 1013, and the second housing 102 has a second cavity 1023, in which the friction blocks 108 are disposed. The side wall of the first cavity 1013 has a first through groove 1011 through which the friction blocks 108 pass, and the side wall of the second cavity 1023 has a second through groove 1022 through which the friction blocks 108 pass. The first through groove 1011 and the second through groove 1022 are aligned and aligned. One end of the first through groove 1011 and one end of the second through groove 1022 are respectively connected to the outside. After the two engaging flaps 100 are engaged, The friction blocks 108 are evenly distributed along the inner wall of the ring formed by the two snap-fit ​​flaps 100. The friction blocks 108 pass through the through slot and abut against the surface of the propulsion shaft or generator rotor. The friction force is generated by the positive pressure between the friction blocks 108 and the shaft and rotor, thereby transmitting the torque of the propulsion shaft to the generator rotor, driving the rotor to rotate and generate electricity. The open design of the first through slot 1011 and the second through slot 1022 allows the friction blocks 108 to be directly pulled out of the cavity along the through slot. When replacing, only the second housing 102 needs to be pulled out of the first cavity 1013 to remove the worn friction blocks 108 from the first through slot and the second through slot for replacement. The operation steps are greatly simplified, effectively shortening the maintenance and replacement time and reducing the cost loss caused by ship downtime maintenance.

[0052] like Figure 3 , Figure 7 , Figure 10 As shown, the friction block 108 is provided with a color-developing component. When the friction block 108 abuts against the propulsion shaft or rotor, the color-developing component applies color to the surface of the propulsion shaft or rotor. The first through groove 1011 is provided with a first observation window 1012 on both sides, and the second through groove 1022 is provided with a second observation window 1021 on both sides. The first observation window 1012 penetrates the first housing 101, and the second observation window 1021 penetrates the second housing 102. The first observation window 1012 and the second observation window 1021 are aligned with each other.

[0053] like Figure 3 , Figure 7 , Figure 16 , Figure 17As shown, staff can directly observe the color-developing marks on the shaft surface through the aligned first observation window 1012 and second observation window 1021 from outside the device, thereby determining the contact status between the friction block 108 and the shaft surface. If the shaft-holding device does not slip, the color-developing marks cannot be observed through the observation windows; if the shaft-holding device slips, the color markings can be observed through the observation windows, enabling timely detection of slippage and avoiding energy waste and power loss caused by delayed fault detection. Simultaneously, as the friction block 108 wears down, the color-developing component will gradually be exposed. By directly observing the exposed position and area of ​​the color-developing component through the observation windows, the remaining wear allowance of the friction block 108 can be intuitively determined, allowing for early prediction of wear trends. This facilitates advance maintenance planning, enabling preventative maintenance and significantly improving the reliability of the device operation.

[0054] like Figure 2 , Figure 3 , Figure 18 As shown, further, a movable ring 106 is provided inside the second cavity 1023, and multiple protrusions 107 are provided on the movable ring 106. The top of the friction block 108 is provided with a guide block 110 and a limiting plate 111. When the movable ring 106 rotates inside the second cavity 1023, the protrusions 107 abut against the guide block 110, pushing the friction block 108 out of the second through groove 1022. The top of the guide block 110 is inclined, so that when the protrusions 107 abut against the top surface of the guide block 110, they can push the guide block 110 to move, thereby causing the friction block 108 to extend out of the first through groove and the second through groove. The limiting plate 111 limits the maximum stroke of the friction block 108, preventing the friction block 108 from directly passing through the first through groove and the second through groove. By rotating the movable ring 106, all friction blocks 108 can be pushed outward simultaneously, adjusting the length of friction blocks 108 exposed in the second through groove 1022, compensating for the thickness loss caused by wear of friction blocks 108, ensuring that friction blocks 108 can always stably abut against the shaft surface, maintaining sufficient contact pressure and friction, eliminating the slight slippage problem without replacing friction blocks 108, extending the service life of friction blocks 108, and further reducing maintenance costs.

[0055] like Figure 6 , Figure 18As shown, the movable ring 106 is provided with multiple third observation windows 113, which are aligned with the first observation window 1012, and the cross-section of the third observation window 113 is larger than that of the first observation window 1012. A retainer 140 is provided on the inner wall of the second cavity 1023, and one end of the movable ring 106 is inserted into the retainer 140. The retainer 140 guides the movable ring 106, ensuring that the movable ring 106 maintains stable coaxiality during rotation, and preventing the eccentric wobbling of the movable ring 106 from affecting the pushing accuracy of the friction block 108. The large cross-section design of the third observation window 113 ensures that the third observation window 113 remains aligned with the first observation window 1012 after the movable ring 106 rotates, ensuring that the operator can still observe the slippage and wear status normally through the three aligned observation windows, and the monitoring function is not affected by the structure of the movable ring 106.

[0056] like Figure 7 , Figure 10 As shown, specifically, the color-developing component includes a pigment pack 134 and a coloring block 123. The coloring block 123 is preferably made of sponge. The friction block 108 is provided with a first groove 142 and a second groove 143. The first groove 142 is arranged along the width direction of the friction block 108, and the second groove 143 is located on top of the first groove 142. The pigment pack 134 is located in the second groove 143, and the coloring block 123 is located in the first groove 142. The bottom of the pigment pack 134 is provided with multiple discharge holes. The pigment in the pigment pack 134 is preferably red, which can facilitate the crew to quickly detect the pigment exposure.

[0057] like Figure 7 , Figure 10As shown, the friction block 108 is provided with a movable groove 109, and the guide block 110 is provided in the movable groove 109. The guide block 110 is provided with a first push rod 132, which passes through the second groove 143. One end of the first push rod 132 is provided with a first push plate 133. The guide block 110 is provided with a third groove 144. The movable groove 109 is provided with a first support block 129 and a first spring 130. The first spring 130 is sleeved on the first support block 129 and abuts against the top of the third groove 144. The third groove 144 is provided with a second support block 131, which is aligned with the first support block 129. When the protrusion 107 pushes the guide block 110 to move in the direction of the friction block 108, the guide block 110 first moves in the movable groove 109. The guide block 110 will drive the first push rod 132 to move synchronously into the second groove 143. The first push plate 133 squeezes the pigment bag 134, causing the pigment bag 134 to deform. The pigment flows out from the discharge hole and seeps into the coloring block 123. When the friction block 108 abuts against the push shaft or rotor, the coloring block 123 will then contact the push shaft or rotor. The coloring block 123 directly draws a mark on the surface of the push shaft and rotor. At this time, the friction block 108 completely covers the mark, and the colored mark cannot be seen through the observation window. When the friction block 108 wears down and the friction decreases, the push shaft will slip during transmission. At this time, the push shaft or rotor will rotate relative to the shaft holding device, causing the mark on the surface of the push shaft or rotor to be exposed through the observation window. The operator can then directly observe the colored mark through the observation window and promptly detect the slippage fault.

[0058] like Figure 7 , Figure 10 As shown, the first spring 130 provides a certain amount of movement space for the guide block 110 relative to the friction block 108. The first support block 129 and the second support block 131 enable the guide block 110 to form a direct transmission with the friction block 108 when the two support blocks abut against each other, ensuring the support effect of the guide block 110 on the friction block 108, thereby improving the clamping force of the friction block 108 on the propulsion shaft or rotor.

[0059] like Figure 4 , Figure 5 , Figure 7As shown, a connecting post 114 is provided in the second cavity 1023. When the second housing 102 is inserted into the first cavity 1013, the connecting post 114 abuts against the inner wall of the first cavity 1013. The connecting post 114 is fixed to the first housing 101 by screws. A third cavity 145 is provided on the connecting post 114. A first movable plate 115 is provided in the third cavity 145. A second push rod 116 is provided on the first movable plate 115. The second push rod 116 extends out from the third cavity 145. A second push plate 117 is provided at one end of the second push rod 116. A protruding plate 112 is provided on the movable ring 106. An oil inlet cavity 105 is provided on the side wall of the second housing 102. An oil inlet hole communicating with the third cavity 145 is provided on the side wall of the oil inlet cavity 105. The oil inlet hole is located on one side of the first movable plate 115. After the shaft clamping device is connected to the propulsion shaft and the rotor, hydraulic oil is injected into the oil inlet chamber 105. The hydraulic oil in the oil inlet chamber 105 enters the third cavity 145 through the oil inlet hole, pushing the first movable plate 115 to move within the third cavity 145. The first movable plate 115 drives the second push rod 116 to extend outward toward the connecting column 114. The second push plate 117 pushes the protrusion 112 on the movable ring 106, causing the movable ring 106 to rotate within the second cavity 1023. The protrusion 107 abuts against the guide block 110 as the movable ring 106 rotates, pushing the guide block 110 to move. This causes the friction block 108 to extend from the through groove and abut against the side wall of the propulsion shaft and the rotor, increasing the clamping force and ensuring sufficient friction to transmit torque. The hydraulic push method provides stable driving force and allows for flexible adjustment of the clamping force through oil pressure, adapting to torque transmission requirements under different working conditions.

[0060] like Figure 6 , Figure 8 , Figure 14 , Figure 15 As shown, further, a mounting ring 120 is provided on the side wall of the second cavity 1023, and a fourth cavity 138 is provided on the mounting ring 120. A second movable plate 126 is provided in the fourth cavity 138, and a connecting rod 127 is provided on the second movable plate 126. The connecting rod 127 extends out from the fourth cavity 138, and a toothed ring 121 is provided at one end of the connecting rod 127. The toothed ring 121 is provided with multiple oblique tooth grooves, and multiple oblique teeth 122 are provided on the inner wall of the movable ring 106. When the second movable plate 126 moves in the fourth cavity 138, it drives the toothed ring 121 to move so that the toothed ring 121 is aligned with the oblique teeth 122. When the toothed ring 121 engages with the helical teeth 122 on the inner wall of the movable ring 106, the movable ring 106 can be circumferentially locked. This works in conjunction with the first push plate 133 to prevent the movable ring 106 from rotating in the opposite direction after being clamped in place. This ensures that the friction block 108 always maintains a stable ejected position and a constant clamping force. It also prevents the friction block 108 from retracting during operation, which would cause a decrease in friction and lead to slippage. This further improves the stability of the device operation.

[0061] like Figure 7 , Figure 11 , Figure 12 As shown, a connecting block 124 is provided on the side wall of the second housing 102. The connecting block 124 has a connecting cavity 125 that connects the third cavity 145 and the fourth cavity 138. A first connecting pipe 137 is provided at one end of the connecting cavity 125. The first connecting pipe 137 passes through the third cavity 145 and is located on the other side of the first movable plate 115. The third cavity 145 is filled with hydraulic oil, and the hydraulic oil in the third cavity 145 is located on the side connected to the first connecting pipe 137. After the shaft clamping device is connected to the propulsion shaft and the rotor, external hydraulic oil is injected into the third cavity 145 through the oil inlet chamber 105. The newly injected hydraulic oil pushes the first movable plate 115 to move in the third cavity 145. When the first movable plate 115 moves, it squeezes the original hydraulic oil in the third cavity 145 to flow. The original hydraulic oil in the third cavity 145 flows to the fourth cavity 138 through the connecting chamber 125, pushing the second movable plate 126 to move in the fourth cavity 138. The second movable plate 126 drives the connecting rod 127 and the toothed ring 121 to extend towards the movable ring 106. The oblique tooth groove on the toothed ring 121 meshes with the oblique tooth 122 on the inner wall of the movable ring 106 to lock the movable ring 106. It cooperates with the first push plate 133 to provide a fixing effect for the movable ring 106, ensuring the supporting force of the protrusion 107 on the friction block 108.

[0062] like Figure 10 , Figure 13 As shown, the inner wall of the third cavity 145 is provided with a guide frame 119 and a through hole 141. The guide frame 119 is provided with a sealing plate 135 and a second spring 136. The sealing plate 135 abuts against the side wall of the third cavity 145 to seal the through hole 141. The first connecting pipe 137 passes through the through hole 141. One end of the first connecting pipe 137 is provided with multiple slots 1371. When the first connecting pipe 137 is inserted into the through hole 141, it pushes the sealing plate 135 to move, so that the through hole 141 opens automatically. When the second housing 102 is removed from the first cavity, the sealing plate 135 moves automatically towards the through hole 141 under the action of the second spring 136 to seal the through hole 141, preventing the hydraulic oil in the third cavity 145 from leaking out of the through hole 141.

[0063] like Figure 11 , Figure 12 , Figure 13As shown, a partition is provided in the oil inlet chamber 105, which divides the oil inlet chamber 105 into an upper chamber 1051 and a lower chamber 1052. The upper chamber 1051 is connected to the third cavity 145. A second connecting pipe 118 is provided on the side wall of the lower cavity 1052. The second connecting pipe 118 is connected to the fourth cavity 138. The second connecting pipe 118 and the connecting cavity 125 are located on both sides of the second movable plate 126. When the friction block 108 needs to be disassembled and replaced, hydraulic oil is injected into the lower cavity 1052. The hydraulic oil enters the fourth cavity 138 through the second connecting pipe 118. The hydraulic oil pushes the second movable plate 126 to move back. The second movable plate 126 pushes the hydraulic oil originally in the fourth cavity 138 into the third cavity 145 through the connecting cavity 125, pushing the first movable plate 115 to move back. This causes the second push plate 117 to release the pressure on the convex plate 112. At the same time, the toothed ring 121 also disengages from the helical tooth 122, releasing the lock on the movable ring 106. This allows the movable ring 106 to rotate in the opposite direction and reset, causing the friction block 108 to retract. The friction block 108 can then be removed and replaced. The operation is simple and smooth.

[0064] like Figure 1 , Figure 16 , Figure 17 As shown, further, a connecting strip 103 is provided on the side wall of the snap-fit ​​flap 100, and a connecting groove 139 is provided on the connecting strip 103. When the two snap-fit ​​flaps 100 are connected, a connector 104 is connected in the connecting groove 139. The connector 104 is U-shaped and is fixed in the connecting groove 139 by screws. The U-shaped connector 104 can simultaneously engage with the connecting grooves 139 on the corresponding sides of the two snap-fit ​​flaps 100. The connector 104 is locked onto the two snap-fit ​​flaps 100 by screws, realizing quick snap-fit ​​and fixation of the two snap-fit ​​flaps 100. The connection strength is sufficient and the assembly and disassembly are convenient. A set of connecting structures is provided at both ends of the two snap-fit ​​flaps 100 to ensure that the overall force is even after the flaps are engaged and there will be no local loosening. When connecting the two snap-fit ​​flaps 100, first align the two snap-fit ​​flaps 100 with each other, and then insert the connector 104 into the connecting groove 139 to initially fix the snap-fit ​​flaps 100. When connecting the screws, there is no need to lift one of the snap-fit ​​flaps 100, which reduces the difficulty of on-site installation. A single person can complete the disassembly and assembly of the shaft clamping device.

[0065] The above description is merely a selection of preferred embodiments of this disclosure and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in the embodiments of this disclosure is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described inventive concept. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features with similar functions disclosed in the embodiments of this disclosure.

Claims

1. A marine split-shaft generator bearing device, comprising two arc-shaped snap-fitting flaps (100), wherein the two snap-fitting flaps (100) snap onto the propulsion shaft of the ship and the rotor of the generator to form a transmission engagement between the propulsion shaft and the rotor; Its features are: The latching flap (100) includes a first housing (101), a second housing (102), and a plurality of friction blocks (108). The first housing (101) has a first cavity (1013), the second housing (102) is inserted into the first cavity (1013), the second housing (102) has a second cavity (1023), and the friction blocks (108) are disposed in the second cavity (1023). The side wall of the first cavity (1013) has a first through groove (1011) for the friction blocks (108) to pass through, and the side wall of the second cavity (1023) has a second through groove (1022) for the friction blocks (108) to pass through. The first through groove (1011) and the second through groove (1022) are aligned with each other. One end of the first through groove (1011) and one end of the second through groove (1022) are respectively connected to the outside. The friction block (108) is provided with a color-developing component. When the friction block (108) abuts against the propulsion shaft or rotor, the color-developing component applies color to the surface of the propulsion shaft or rotor. The first through groove (1011) is provided with a first observation window (1012) on both sides, and the second through groove (1022) is provided with a second observation window (1021) on both sides. The first observation window (1012) penetrates the first housing (101), and the second observation window (1021) penetrates the second housing (102). The first observation window (1012) and the second observation window (1021) are aligned with each other.

2. The marine split-shaft generator bearing device according to claim 1, characterized in that: The second cavity (1023) is provided with a movable ring (106), and the movable ring (106) is provided with a plurality of protrusions (107). The top of the friction block (108) is provided with a guide block (110) and a limiting plate (111). When the movable ring (106) rotates in the second cavity (1023), the protrusions (107) abut against the guide block (110) to push the friction block (108) out of the second through groove (1022).

3. The marine split-shaft generator bearing device according to claim 2, characterized in that: The movable ring (106) is provided with a plurality of third observation windows (113), the third observation windows (113) are aligned with the first observation window (1012), and the cross section of the third observation window (113) is larger than the cross section of the first observation window (1012); a retainer (140) is provided on the inner wall of the second cavity (1023), and one end of the movable ring (106) is inserted into the retainer (140).

4. The marine split-shaft generator bearing device according to claim 2, characterized in that: The color-developing component includes a pigment pack (134) and a coloring block (123). The friction block (108) is provided with a first groove (142) and a second groove (143). The first groove (142) is arranged along the width direction of the friction block (108). The second groove (143) is located at the top of the first groove (142). The pigment pack (134) is located in the second groove (143). The coloring block (123) is located in the first groove (142). The bottom of the pigment pack (134) is provided with a plurality of discharge holes.

5. The marine split-shaft generator bearing device according to claim 4, characterized in that: The friction block (108) is provided with a movable groove (109), and the guide block (110) is provided in the movable groove (109). The guide block (110) is provided with a first push rod (132), which passes through the second groove (143). One end of the first push rod (132) is provided with a first push plate (133). The guide block (110) is provided with a third groove (144). The movable groove (109) is provided with a first support block (129) and a first spring (130). The first spring (130) is sleeved on the first support block (129) and abuts against the top of the third groove (144). The third groove (144) is provided with a second support block (131), which is aligned with the first support block (129).

6. The marine split-shaft generator bearing device according to claim 2, characterized in that: A connecting post (114) is provided in the second cavity (1023). When the second housing (102) is inserted into the first cavity (1013), the connecting post (114) abuts against the inner wall of the first cavity (1013). The connecting post (114) is fixed to the first housing (101) by screws. A third cavity (145) is provided on the connecting post (114). A first movable plate (115) is provided in the third cavity (145). The first movable ring (106) is provided with a second push rod (116), which extends out of the third cavity (145). One end of the second push rod (116) is provided with a second push plate (117). The movable ring (106) is provided with a protruding plate (112). The side wall of the second housing (102) is provided with an oil inlet cavity (105). The side wall of the oil inlet cavity (105) is provided with an oil inlet hole that communicates with the third cavity (145). The oil inlet hole is located on one side of the first movable plate (115).

7. The marine split-shaft generator bearing device according to claim 6, characterized in that: The second cavity (1023) has a mounting ring (120) on its side wall. The mounting ring (120) has a fourth cavity (138). The fourth cavity (138) has a second movable plate (126). The second movable plate (126) has a connecting rod (127). The connecting rod (127) passes through the fourth cavity (138). One end of the connecting rod (127) has a toothed ring (121). The toothed ring (121) has multiple oblique tooth grooves. The inner wall of the movable ring (106) has multiple oblique teeth (122). When the second movable plate (126) moves in the fourth cavity (138), it drives the toothed ring (121) to move so that the toothed ring (121) is aligned with the oblique teeth (122).

8. The marine split-shaft generator bearing device according to claim 7, characterized in that: The second housing (102) has a connecting block (124) on its side wall. The connecting block (124) has a connecting cavity (125) that connects the third cavity (145) and the fourth cavity (138). One end of the connecting cavity (125) has a first connecting pipe (137). The first connecting pipe (137) passes through the third cavity (145) and is located on the other side of the first movable plate (115).

9. The marine split-shaft generator bearing device according to claim 8, characterized in that: The inner wall of the third cavity (145) is provided with a guide frame (119) and a through hole (141). The guide frame (119) is provided with a sealing plate (135) and a second spring (136). The sealing plate (135) abuts against the side wall of the third cavity (145) to seal the through hole (141). The first connecting pipe (137) passes through the through hole (141). One end of the first connecting pipe (137) is provided with multiple slots (1371). The side wall of the oil inlet cavity (105) is provided with a second connecting pipe (118). The second connecting pipe (118) is connected to the fourth cavity (138). The second connecting pipe (118) and the connecting cavity (125) are respectively located on both sides of the second movable plate (126).

10. The marine split-shaft generator bearing device according to claim 1, characterized in that: The side wall of the snap-fit ​​flap (100) is provided with a connecting strip (103), and the connecting strip (103) is provided with a connecting groove (139). When two snap-fit ​​flaps (100) are connected, a connector (104) is connected in the connecting groove (139), and the connector (104) is fixed in the connecting groove (139) by screws.

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