A synchronous shaft torque unloading device for a ship lift

Abstract

The utility model belongs to the technical field of dismounting tool, and particularly relates to a ship lift synchronous shaft torque unloading device. Its technical scheme is: a ship lift synchronous shaft torque unloading device, including left embrace ring, right embrace ring and expansion bolt, the lower part of left embrace ring and the lower part of right embrace ring are connected through lower pin shaft, the upper part of left embrace ring and one end of expansion bolt are connected through upper pin shaft, the upper part of right embrace ring is provided with connecting plate, the end of expansion bolt away from left embrace ring is locked through nut after passing through connecting plate, left embrace ring and right embrace ring are rotatably connected with adjusting lever piece, the lower end of adjusting lever piece is rotatably connected with base, and the base is welded with the ship compartment, left embrace ring and right embrace ring are buckled on one half of the shaft coupling. The utility model provides a ship lift synchronous shaft torque unloading device, keeps each shaft coupling and its coaxial shaft section from rotating displacement, facilitates the replacement of the shaft coupling transmission part of the ship lift synchronous shaft system, and ensures the normal and stable operation of the ship lift balance weight system.

Description

Technical Field

[0001] This utility model belongs to the field of disassembly tool technology, and specifically relates to a synchronous shaft torque unloading device for a ship lift. Background Technology

[0002] A ship lift is a large-scale water conservancy navigation facility used to overcome water level differences and enable ships to quickly pass through dams. It is mainly used in water conservancy projects, canals, rivers, and other similar scenarios. Its core function is to use mechanical devices to raise and lower ships vertically or inclined from one water level section to another, thereby replacing or assisting traditional ship locks and improving navigation efficiency.

[0003] With the rapid development of inland waterway transportation, large-scale water conservancy and navigation facilities, which enable ships to overcome water level differences and quickly pass through dams, have also developed rapidly, playing a crucial role in numerous inland waterway transportation projects. The synchronous shaft system of a ship lift is one of the core components of the ship lift, typically consisting of a synchronous shaft, coupling, torque detection device, steering gearbox, bearing housing, and support frame.

[0004] Synchronous shaft systems typically consist of multiple synchronous shaft sections, each equipped with a coupling at both ends, connecting the drive units of each ship lift. The torque difference between the drive points of the ship lift is transmitted through the transmission components of the couplings. These coupling transmission components come in various forms, including metal reamed bolts, metal gears, and rubber claws. After prolonged operation, the coupling transmission components in the synchronous shaft system inevitably undergo wear and tear, requiring repair or replacement. However, during the replacement of synchronous shaft coupling transmission components, the torque present in the coupling makes disassembly difficult. Forcibly disassembling the synchronous shaft coupling can cause relative rotation between the two halves, making it impossible to reinstall them correctly in their original positions. Utility Model Content

[0005] In order to solve the above-mentioned problems in the existing technology, the purpose of this utility model is to provide a torque unloading device for the synchronous shaft of a ship lift, so as to keep each coupling and its coaxial shaft section from rotating and misaligning, facilitate the replacement of coupling transmission components in the synchronous shaft system of the ship lift, and ensure the normal and stable operation of the ship lift counterweight system.

[0006] The technical solution adopted in this utility model is as follows: A synchronous shaft torque unloading device for a ship lift includes a left retaining ring, a right retaining ring, and a tightening bolt. The lower parts of the left and right retaining rings are connected by a lower pin, and the upper part of the left retaining ring and one end of the tightening bolt are connected by an upper pin. A connecting plate is provided on the upper part of the right retaining ring. The end of the tightening bolt away from the left retaining ring passes through the connecting plate and is locked by a nut. Both the left and right retaining rings are rotatably connected to adjusting rods. The lower end of the adjusting rods is rotatably connected to a base, which is welded to the ship-carrying chamber. The left and right retaining rings are fastened to one half of a coupling.

[0007] In this invention, the left and right retaining rings engage with the left or right half of the coupling on the synchronous shaft. By adjusting the two adjusting rods, and according to the torque detection device configured on the synchronous shaft system, the torque generated by the adjusting rods on both sides is equal to the synchronous shaft torque at that location, but in opposite directions. At this point, the synchronous shaft coupling transmission components can be replaced, avoiding the difficulty in disassembling the synchronous shaft coupling transmission components due to torque present on the synchronous shaft coupling. This invention ensures that each coupling and its coaxial shaft section does not rotate out of alignment, facilitating the replacement of coupling transmission components in the ship lift synchronous shaft system and ensuring the normal operation of the ship lift.

[0008] As a preferred embodiment of this utility model, the number of synchronous shaft torque unloading devices for the ship lift is two sets. The two synchronous shaft torque unloading devices are respectively installed on two adjacent couplings on the synchronous shaft. Any one of the synchronous shaft torque unloading devices is connected to one half of the coupling away from the other side.

[0009] Based on the torque detection device configured on the synchronous shaft system, determine the torque value and direction at the point to be unloaded on the synchronous shaft. According to the magnitude and direction of the torque value at the point to be removed, keep the adjusting rods on both sides of one set of synchronous shaft torque unloading devices for the ship lift stationary. Adjust the adjusting rods on both sides of the other set of synchronous shaft torque unloading devices, loosening one side and tightening the other, so that the torque generated by the adjusting rods on both sides is equal to the synchronous shaft torque at this point but in the opposite direction.

[0010] If the torque detection device is located between the two devices, observe the change in the displayed torque value. If it decreases, loosen the adjusting rod on one side and continue to loosen it, while tightening the adjusting rod on the other side of the device. If it increases, do the opposite until the torque sensor approaches 0 value.

[0011] If the torque detection device is not between the two devices, analyze the torque transmission component of the synchronous shaft coupling according to the type of coupling, try to disassemble the torque transmission component, and adjust the tightening direction of the adjusting rods on both sides of this device according to the difficulty of disassembly, until the torque transmission component of the synchronous shaft coupling is completely disassembled.

[0012] As a preferred embodiment of this utility model, the upper part of the left retaining ring is provided with two connecting ear plates, each with a through hole. One end of the expansion bolt is also provided with a through hole, and the end of the expansion bolt with the through hole is inserted between the two connecting ear plates. The upper pin passes through the through holes of the two connecting ear plates and the through hole of the expansion bolt.

[0013] As a preferred embodiment of this utility model, one end of the upper pin is provided with an upper retaining ring, and the other end of the upper pin is connected with an upper cotter pin. The upper retaining ring and the upper cotter pin are respectively located on both sides of the integrally formed by the expansion bolt and the two connecting ear plates.

[0014] As a preferred embodiment of this utility model, the connecting plate is provided with a U-shaped groove, the expansion bolt engages in the U-shaped groove, a pad is fitted on the expansion bolt, the pad is pressed against the side of the connecting plate away from the left retaining ring, and the nut thread is pressed against the side of the pad away from the connecting plate.

[0015] As a preferred embodiment of this utility model, the lower part of the left retaining ring is provided with two ear seats, each ear seat having a through hole; the lower part of the right retaining ring is provided with an ear plate, each ear plate having a through hole; the ear plate is inserted between the two ear seats; and the lower pin passes through the through holes of the two ear seats and the through hole of the ear plate.

[0016] As a preferred embodiment of this utility model, one end of the lower pin is provided with a lower retaining ring, and the other end of the lower pin is connected with a lower cotter pin. The lower retaining ring and the lower cotter pin are respectively located on both sides of the ear plate and the two ear seats that form a whole.

[0017] As a preferred embodiment of this utility model, the lower end of the adjusting rod is connected to the base by a pin, and the upper end of the adjusting rod is connected to the left or right retaining ring by a pin.

[0018] As a preferred embodiment of this utility model, the left retaining ring is provided with a left rib plate, and the left rib plate is provided with several round holes; the right retaining ring is provided with a right rib plate, and the right rib plate is provided with several round holes.

[0019] As a preferred embodiment of this utility model, the adjusting rod is a turnbuckle.

[0020] The beneficial effects of this utility model are as follows: The left and right retaining rings of this invention engage with the left or right half of the synchronous shaft coupling. By adjusting the two adjusting rods, and according to the torque detection device configured on the synchronous shaft system, the torque generated by the adjusting rods on both sides is equal to the synchronous shaft torque at this location but in opposite directions. At this point, the synchronous shaft coupling transmission components can be replaced, avoiding the difficulty in disassembling the synchronous shaft coupling transmission components due to torque present on the synchronous shaft coupling. This invention ensures that each coupling and its coaxial shaft section does not rotate out of alignment, facilitating the replacement of coupling transmission components in the ship lift synchronous shaft system and ensuring the normal operation of the ship lift. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a cross-sectional view of the upper pin shaft of this utility model; Figure 3 This is a cross-sectional view of the lower pin shaft of this utility model; Figure 4 This is a schematic diagram of the left-hand retaining ring structure; Figure 5 This is a schematic diagram of the right-hand retaining ring structure; Figure 6 This is an installation diagram of this utility model.

[0022] In the diagram: 1-Left retaining ring; 2-Right retaining ring; 3-Tightening bolt; 4-Lower pin; 5-Upper pin; 6-Adjusting rod; 7-Base; 8-Padded block; 9-Pin; 11-Connecting ear plate; 12-Ear seat; 13-Left rib plate; 21-Connecting plate; 22-Ear plate; 23-Right rib plate; 31-Nut; 41-Lower retaining ring; 42-Lower cotter pin; 51-Upper retaining ring; 52-Upper cotter pin; 211-U-shaped groove. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention. It should be noted that, unless otherwise specified, the embodiments and features described in the embodiments of the present invention can be combined with each other.

[0025] like Figures 1-6 As shown, the synchronous shaft torque unloading device of the ship lift in this embodiment includes a left retaining ring 1, a right retaining ring 2, and a tightening bolt 3. The lower part of the left retaining ring 1 and the lower part of the right retaining ring 2 are connected by a lower pin 4. The upper part of the left retaining ring 1 and one end of the tightening bolt 3 are connected by an upper pin 5. A connecting plate 21 is provided on the upper part of the right retaining ring 2. The end of the tightening bolt 3 away from the left retaining ring 1 passes through the connecting plate 21 and is locked by a nut 31. Both the left retaining ring 1 and the right retaining ring 2 are rotatably connected to an adjusting rod 6. The lower end of the adjusting rod 6 is rotatably connected to a base 7. The base 7 is welded to the ship-bearing chamber. The left retaining ring 1 and the right retaining ring 2 are fastened to one half of the coupling.

[0026] The adjusting rod 6 is a turnbuckle, and two adjusting rods 6 are provided for each synchronous shaft torque unloading device of the ship lift. Several turnbuckles are connected end-to-end according to the height requirements. By turning the adjusting rod 6, the left retaining ring 1 or the right retaining ring 2 is tightened or loosened, increasing the friction between the left retaining ring 1 and the right retaining ring 2 and the coupling.

[0027] In this invention, the left retaining ring 1 and the right retaining ring 2 are fastened to the left or right half of the coupling on the synchronous shaft. By adjusting the two adjusting rods 6, and according to the torque detection device configured on the synchronous shaft system, the torque generated by the adjusting rods on both sides is equal to the synchronous shaft torque at this location but in opposite directions. At this point, the synchronous shaft coupling transmission components can be replaced, avoiding the problem of difficulty in disassembling the synchronous shaft coupling transmission components due to torque on the synchronous shaft coupling. This invention ensures that each coupling and its coaxial shaft section does not rotate out of alignment, facilitating the replacement of coupling transmission components in the ship lift synchronous shaft system and ensuring the normal operation of the ship lift.

[0028] like Figure 6 As shown, there are two sets of synchronous shaft torque unloading devices for the ship lift. The two synchronous shaft torque unloading devices are installed on two adjacent couplings on the synchronous shaft, and any one of the synchronous shaft torque unloading devices is connected to one half of the coupling away from the other side.

[0029] Based on the torque detection device configured on the synchronous shaft system, determine the torque value and direction at the point to be unloaded on the synchronous shaft. According to the magnitude and direction of the torque value at the point to be removed, keep the adjusting rods 6 on both sides of one set of synchronous shaft torque unloading devices for the ship lift stationary. Adjust the adjusting rods 6 on both sides of the other set of synchronous shaft torque unloading devices, loosening one side and tightening the other, so that the torque generated by the adjusting rods on both sides is equal to the synchronous shaft torque at this point but in the opposite direction.

[0030] If the torque detection device is located between the two devices, observe the change in the displayed torque value. If it decreases, loosen the adjusting rod 6 on one side and continue to loosen it, while tightening the adjusting rod on the other side of the device. If it increases, operate in the opposite way until the torque sensor approaches 0 value.

[0031] If the torque detection device is not between the two devices, analyze the torque transmission component of the synchronous shaft coupling according to the type of coupling, try to disassemble the torque transmission component, and adjust the tightening direction of the adjusting rods on both sides of this device according to the difficulty of disassembly, until the torque transmission component of the synchronous shaft coupling is completely disassembled.

[0032] Among them, such as Figure 4 As shown, the upper part of the left retaining ring 1 is provided with two connecting ear plates 11. The connecting ear plates 11 are provided with through holes. One end of the expansion bolt 3 is provided with a through hole. The end of the expansion bolt 3 with the through hole is inserted between the two connecting ear plates 11. The upper pin 5 passes through the through holes of the two connecting ear plates 11 and the through hole of the expansion bolt 3.

[0033] like Figure 2 As shown, one end of the upper pin 5 is provided with an upper retaining ring 51, and the other end of the upper pin 5 is connected with an upper cotter pin 52. The upper retaining ring 51 and the upper cotter pin 52 are respectively located on both sides of the integrally formed by the expansion bolt 3 and the two connecting ear plates 11.

[0034] like Figure 1 and Figure 5 As shown, the connecting plate 21 is provided with a U-shaped groove 211, the expansion bolt 3 is engaged in the U-shaped groove 211, and a pad 8 is sleeved on the expansion bolt 3. The pad 8 is pressed against the side of the connecting plate 21 away from the left retaining ring 1, and the nut 31 is threadedly pressed against the side of the pad 8 away from the connecting plate 21.

[0035] like Figure 3 As shown, the lower part of the left retaining ring 1 is provided with two ear seats 12, and the ear seats 12 are provided with through holes. The lower part of the right retaining ring 2 is provided with an ear plate 22, and the ear plate 22 is provided with through holes. The ear plate 22 is inserted between the two ear seats 12, and the lower pin 4 passes through the through holes of the two ear seats 12 and the through hole of the ear plate 22.

[0036] One end of the lower pin 4 is provided with a lower retaining ring 41, and the other end of the lower pin 4 is connected with a lower cotter pin 42. The lower retaining ring 41 and the lower cotter pin 42 are respectively located on both sides of the ear plate 22 and the two ear seats 12 that make up the whole.

[0037] The lower end of the adjusting rod 6 is connected to the base 7 via a pin 9, and the upper end of the adjusting rod 6 is connected to the left retaining ring 1 or the right retaining ring 2 via a pin 9.

[0038] The left retaining ring 1 is provided with a left rib plate 13, and the left rib plate 13 is provided with several round holes; the right retaining ring 2 is provided with a right rib plate 23, and the right rib plate 23 is provided with several round holes. The left rib plate 13 provides the left retaining ring 1 with sufficient strength and rigidity, and the right rib plate 23 provides the right retaining ring 2 with sufficient strength and rigidity.

[0039] Before unloading the synchronous shaft torque of the ship lift, first confirm that the ship lift is in a stopped state, all safety mechanisms are in use, and the ship-carrying chamber is stopped at an elevation that facilitates the maintenance and repair of the synchronous shaft system; secondly, confirm the synchronous shaft section and its coupling to be inspected and disassembled.

[0040] In this embodiment, the implementation process of the ship lift synchronous shaft torque unloading device is as follows: S1: Loosen the nut 31 by turning it, and then rotate the expansion bolt 3 and the washer 8 around the pin 5 to the left side of the retaining ring 1; S2: Open the left retaining ring 1 and the right retaining ring 2 around the lower pin 4; S3: Install the opened left retaining ring 1 and right retaining ring 2 onto the left half of the coupling on the synchronous shaft; S4: Close the left retaining ring 1 and the right retaining ring 2 around the lower pin 4; S5: Rotate the expansion bolt 3 and the washer 8 around the pin 5 to the right side of the retaining ring 2, and tighten the nut 31 to tighten them; S6: Based on the height of the synchronous shaft and the metal structure base plate of the ship-bearing box, select several adjusting rods 6 to be used in combination or individually, and connect their upper ends to the left retaining ring 1 and the right retaining ring 2 with pins 9, and connect their lower ends to the base 7 with pins 9. S7: Weld the bases 7 on both sides to the metal structure of the ship-bearing box; S8: Repeat steps S1 to S7 on the other end of the synchronous shaft section and its coupling to be inspected and disassembled, and install another set of ship lift synchronous shaft torque unloading device. S9: Tighten the adjusting screws of the synchronous shaft torque unloading device on the left and the synchronous shaft torque unloading device on the right of the ship lift. S10: Determine the torque value and direction at the unloading point on the synchronous shaft based on the torque detection device configured on the synchronous shaft system; S11: Based on the magnitude and direction of the torque value at the point to be dismantled, keep the two adjusting rods 6 on both sides of one set of ship lift synchronous shaft torque unloading device stationary, and adjust the two adjusting rods 6 on both sides of the other set of ship lift synchronous shaft torque unloading device, loosening one side and tightening the other side, so that the torque generated by the two adjusting rods is equal to the synchronous shaft torque at this point and in the opposite direction. S12: If the torque detection device is located between the two devices, observe the change in the displayed torque value. If it decreases, loosen the adjusting rod 6 on the other side and continue to loosen it, while tightening the adjusting rod on the other side of the device. If it increases, do the opposite operation until the torque sensor approaches 0 value. If the torque detection device is not between the two devices, analyze the torque transmission component of the coupling according to the type of coupling, try to disassemble the torque transmission component, and adjust the tightening direction of the adjusting rods on both sides of this device according to the difficulty of disassembly, until the torque transmission component of the coupling is completely disassembled.

[0041] This utility model is not limited to the above-mentioned optional embodiments. Anyone can derive other forms of products under the guidance of this utility model. However, regardless of any changes made in its shape or structure, any technical solution that falls within the scope of the claims of this utility model shall be protected by this utility model.

Claims

1. A synchronous shaft torque unloading device for a ship lift, characterized in that: It includes a left retaining ring (1), a right retaining ring (2) and a tightening bolt (3). The lower part of the left retaining ring (1) and the lower part of the right retaining ring (2) are connected by a lower pin (4). The upper part of the left retaining ring (1) and one end of the tightening bolt (3) are connected by an upper pin (5). A connecting plate (21) is provided on the upper part of the right retaining ring (2). The end of the tightening bolt (3) away from the left retaining ring (1) passes through the connecting plate (21) and is locked by a nut (31). Both the left retaining ring (1) and the right retaining ring (2) are rotatably connected to an adjusting rod (6). The lower end of the adjusting rod (6) is rotatably connected to a base (7). The base (7) is welded to the ship's hull. The left retaining ring (1) and the right retaining ring (2) are fastened to one half of the coupling.

2. The synchronous shaft torque unloading device for a ship lift according to claim 1, characterized in that: There are two sets of synchronous shaft torque unloading devices for the ship lift. The two synchronous shaft torque unloading devices are installed on two adjacent couplings on the synchronous shaft. Any one of the synchronous shaft torque unloading devices is connected to one half of the coupling away from the other side.

3. The synchronous shaft torque unloading device for a ship lift according to claim 1, characterized in that: The upper part of the left retaining ring (1) is provided with two connecting ear plates (11). The connecting ear plates (11) are provided with through holes. One end of the expansion bolt (3) is provided with a through hole. The end of the expansion bolt (3) with the through hole is inserted between the two connecting ear plates (11). The upper pin (5) passes through the through holes of the two connecting ear plates (11) and the through hole of the expansion bolt (3).

4. The synchronous shaft torque unloading device for a ship lift according to claim 3, characterized in that: One end of the upper pin (5) is provided with an upper retaining ring (51), and the other end of the upper pin (5) is connected with an upper cotter pin (52). The upper retaining ring (51) and the upper cotter pin (52) are respectively located on both sides of the expansion bolt (3) and the two connecting ear plates (11) that form a whole.

5. The synchronous shaft torque unloading device for a ship lift according to claim 1, characterized in that: The connecting plate (21) is provided with a U-shaped groove (211), the expansion bolt (3) engages in the U-shaped groove (211), and a pad (8) is fitted on the expansion bolt (3). The pad (8) is pressed against the side of the connecting plate (21) away from the left retaining ring (1), and the nut (31) is threaded and pressed against the side of the pad (8) away from the connecting plate (21).

6. The synchronous shaft torque unloading device for a ship lift according to claim 1, characterized in that: The lower part of the left retaining ring (1) is provided with two ear seats (12), and the ear seats (12) are provided with through holes. The lower part of the right retaining ring (2) is provided with an ear plate (22), and the ear plate (22) is provided with through holes. The ear plate (22) is inserted between the two ear seats (12), and the lower pin (4) passes through the through holes of the two ear seats (12) and the through hole of the ear plate (22).

7. The synchronous shaft torque unloading device for a ship lift according to claim 6, characterized in that: One end of the lower pin (4) is provided with a lower retaining ring (41), and the other end of the lower pin (4) is connected with a lower cotter pin (42). The lower retaining ring (41) and the lower cotter pin (42) are respectively located on both sides of the ear plate (22) and the two ear seats (12) that form a whole.

8. The synchronous shaft torque unloading device for a ship lift according to claim 1, characterized in that: The lower end of the adjusting rod (6) is connected to the base (7) by a pin (9), and the upper end of the adjusting rod (6) is connected to the left retaining ring (1) or the right retaining ring (2) by a pin (9).

9. The synchronous shaft torque unloading device for a ship lift according to claim 1, characterized in that: The left retaining ring (1) is provided with a left rib plate (13), and the left rib plate (13) is provided with several round holes; the right retaining ring (2) is provided with a right rib plate (23), and the right rib plate (23) is provided with several round holes.

10. A synchronous shaft torque unloading device for a ship lift according to any one of claims 1 to 9, characterized in that: The adjusting rod (6) is a turnbuckle.

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