Transmission device of ship lift lock head navigation gate

Abstract

The utility model discloses a transmission device of a ship lift lock head navigation gate, which relates to the technical field of water conservancy navigation engineering ship lifts and comprises a supporting seat, a supporting sealing group, a spline shaft, a lug plate component, a driving part and a controller. The supporting seats are symmetrically arranged on the lock head structure; the bearing sealing groups are arranged on wall plates on the two sides of the lock head; one end of the spline shaft is connected with the supporting seat, the other end of the spline shaft penetrates through the supporting sealing set and extends to the outer side of the wall plate, and a first outer spline is arranged on the spline shaft located on the inner side of the wall plate. The lug plate assembly comprises a lug plate frame, the top of the lug plate frame is connected with the bottom end of the gate leaf, spline bushings are detachably connected to the two sides of the bottom of the lug plate frame, and the spline bushings are provided with first inner splines matched with the first outer splines. The output end of the driving piece is fixedly connected with the end of the spline shaft located on the outer side of the wall plate, and the spline shaft can rotate. And the driving piece is in signal connection with the controller. The transmission device is reasonable in design, and the spline matching structure adopted by the transmission device has extremely high stability and transmission efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of ship lifts for water conservancy and navigation engineering, and more specifically to the technical field of a transmission device for a ship lift lock head navigation lock gate. Background Art

[0002] As key equipment for controlling water flow, regulating water level, and preventing floods and draining water, hydraulic gates play a vital role in various water conservancy projects. Among them, steel dam gates, or bottom-shaft flip gates, have been widely used and recognized for their unique advantages, such as adapting to wide rivers, simple structure, no need for intermediate gate piers, saving civil engineering investment, closing the gate to store water, opening the gate to discharge floods and drain water, and freely adjusting the water interception height.

[0003] At present, both ends of the bottom shaft of the steel dam gate are equipped with crank arms and hydraulic gate hoists. Its working principle is to use the hydraulic gate hoist as a power source to synchronously drive the crank arms at both ends to rotate, thereby causing the gate leaves to swing in a fan shape, thereby realizing the opening or closing of the gate. However, in the actual operation process, the existing steel dam gate transmission device has certain deficiencies in force transmission. Since the steel dam gate usually needs to work in a complex water flow environment, the force on its gate leaves is variable, and the transmission devices currently on the market often cannot effectively cope with this variable mechanical environment, resulting in the operation of the gate leaves being affected, and then affecting the normal opening and closing of the gate. Specifically, in a variable water flow environment, the existing transmission devices often cannot stably transmit force, resulting in unstable operation of the gate leaves. Once a fault occurs, it is difficult to repair and requires a lot of time and cost. In the field of ship lift technology, the ship lift lock head navigation gate drive device similar to the steel dam gate has the same problem.

[0004] Therefore, how to provide a transmission device for the first navigation gate of the ship lift lock that can more effectively transmit force to the door leaf, improve the operating efficiency and reliability of the first navigation gate of the ship lift lock, and reduce maintenance costs is a technical problem that technical personnel in this field currently need to solve. Utility Model Content

[0005] The purpose of the utility model is to solve the above technical problems and provide a transmission device for the first navigation lock door of a ship lift lock.

[0006] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions:

[0007] The utility model provides a transmission device for a ship lift lock head through a navigation lock door, the ship lift lock head through the navigation lock door comprises a lock head structure, a wall plate, and a door leaf, and the transmission device comprises a support seat, a support seal group, a spline shaft, an ear plate assembly, a driving member and a controller;

[0008] The support seat is symmetrically arranged on the gate head structure; the support seal group is arranged on the wall plates on both sides of the gate head;

[0009] One end of the spline shaft is connected to the support seat, and the other end passes through the support seal group and extends to the outside of the wall plate. The spline shaft located on the inner side of the wall plate is provided with a first external spline;

[0010] The ear plate assembly is symmetrically arranged at the bottom of the door leaf, and the ear plate assembly includes an ear plate frame, the top of the ear plate frame is connected to the bottom end of the door leaf, and the two sides of the bottom of the ear plate frame are detachably connected with spline bushings, and the spline bushings are provided with first internal splines that cooperate with the first external splines;

[0011] The output end of the driving member is fixedly connected to the end of the spline shaft located outside the wall plate, so that the spline shaft can rotate;

[0012] The driving member establishes a signal connection with the controller.

[0013] In one embodiment, vertical plates are provided on both left and right sides of the bottom of the ear plate frame, each vertical plate is provided with a first through hole, and the center lines of the two first through holes are located on the same axis;

[0014] The spline bushing includes a body and a base, the body is arranged on the base, the base and the body are an integral piece, a second through hole is provided at the center of the spline bushing, the first internal spline is located on the inner wall of the second through hole, the body is installed in the first through hole, and the base is detachably connected to the vertical plate.

[0015] In one embodiment, a plurality of connection protrusions and a plurality of connection holes are evenly distributed on the outer surface of the vertical plate along a circumference, and each of the connection holes is arranged closer to the first through hole than the connection protrusion.

[0016] In one embodiment, the base is circular, and each edge of the base is provided with a plurality of connection grooves evenly distributed along the circumference, and the number of the connection grooves corresponds to the number of the connection protrusions one by one, so that the connection protrusions can fit in the corresponding connection grooves.

[0017] In one embodiment, the base is provided with mounting holes evenly distributed in a circle around the second through hole, the number of the mounting holes is the same as the number of the connecting holes and corresponds one to one, and the base is connected to the vertical plate by bolts passing through the corresponding mounting holes and the connecting holes.

[0018] In one embodiment, the outer diameter of the body is equal to the aperture of the first through hole.

[0019] In one embodiment, the driving member includes a crank arm and a hydraulic cylinder, the first end of the crank arm is fixedly connected to the end of the spline shaft located on the outside of the wall panel; one end of the hydraulic cylinder is hinged to the hydraulic cylinder bracket, and the other end is hinged to the second end of the crank arm.

[0020] In one embodiment, the spline shaft is provided with a second external spline, the second external spline is located outside the wall panel, and the second end of the crank arm is provided with a second internal spline that cooperates with the second external spline.

[0021] In one embodiment, a first cover plate is detachably connected to the outer side surface of the crank arm, and the first cover plate limits the axial movement of the spline shaft.

[0022] In one embodiment, a second cover plate is detachably connected to the outer side of the support seat, and the second cover plate limits the axial movement of the spline shaft.

[0023] The beneficial effects of the utility model are as follows:

[0024] 1. The utility model is reasonably designed. When it is necessary to open or close the first navigation gate of the ship lift lock, the controller will send an operation instruction to the driver. After receiving the instruction, the driver will immediately start to move, and this movement process will be converted into the rotation of the spline shaft. When the spline shaft rotates, the first outer spline will fit tightly with the first inner spline of the spline bushing in the ear plate assembly, and then the ear plate assembly will convert the rotation of the spline shaft into the opening and closing action of the door leaf, thereby realizing the opening and closing of the gate. The spline matching structure adopted by this transmission device has extremely high stability and transmission efficiency.

[0025] 2. This structure can ensure that the connection between the ear plate assembly and the spline shaft is firm and reliable, and can maintain stable transmission performance even under long-term operation or heavy load. At the same time, due to the characteristics of the spline matching structure, the ear plate assembly will not produce energy loss in the process of transmitting force, further improving the operating efficiency of the first navigation gate of the ship lift lock.

[0026] 3. In addition, the ear plate frame and the spline bushing are detachably connected, so when the ear plate assembly needs to be repaired or replaced, there is no need to disassemble the entire transmission device. You only need to simply dismantle and replace the damaged parts, which greatly reduces maintenance costs and repair difficulties. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the following is a brief introduction to the drawings required for use in the implementation mode. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 A front view of a transmission device for the first navigation gate of a ship lift lock provided by an embodiment of the utility model;

[0029] Figure 2 A schematic diagram of the structure of the ear plate frame provided by an embodiment of the utility model;

[0030] Figure 3 A schematic diagram of the structure of a spline bushing provided in an embodiment of the utility model;

[0031] Figure 4 A schematic diagram of the working state of the spline bushing provided in the embodiment of the utility model;

[0032] Figure 5 This is a schematic diagram of the structure of a driving member provided in an embodiment of the utility model.

[0033] Reference numerals: 1-support seat, 2-gate head structure, 3-support seal assembly, 4-wall plate, 5-spline shaft, 6-ear plate assembly, 7-door leaf, 8-crank arm, 9-hydraulic cylinder;

[0034] 11- second cover plate;

[0035] 51-first external spline, 52-second external spline;

[0036] 61-ear plate frame, 62-spline bushing, 63-vertical plate, 64-bolt;

[0037] 621-body, 622-base, 623-second through hole, 624-connection groove, 625-mounting hole;

[0038] 631-first through hole, 632-connecting protrusion, 633-connecting hole;

[0039] 81-First cover plate. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Generally, the components of the embodiment of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0041] 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 present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In addition, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0043] In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "upper", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0044] Example 1

[0045] See also Figure 1 The present application provides a transmission device for a ship lift lock head navigation lock door, the ship lift lock head navigation lock door comprises a lock head structure 2, a wall plate 4, and a door leaf 7, the transmission device comprises a support seat 1, a support seal group 3, a spline shaft 5, an ear plate assembly 6, a driving member and a controller;

[0046] The support seat 1 is symmetrically arranged on the gate head structure 2; the support seal group 3 is arranged on the wall panels 4 on both sides of the gate head; one end of the spline shaft 5 is connected to the support seat 1, and the other end passes through the support seal group 3 and extends to the outside of the wall panel 4, and the spline shaft 5 located on the inner side of the wall panel 4 is provided with a first external spline 51; the ear plate assembly 6 is symmetrically arranged at the bottom of the door leaf 7, and the ear plate assembly 6 includes an ear plate frame 61, the top of the ear plate frame 61 is connected to the bottom end of the door leaf 7, and the two sides of the bottom of the ear plate frame 61 are detachably connected with spline bushings 62, and the spline bushing 62 is provided with a first internal spline that cooperates with the first external spline 51;

[0047] The output end of the driving member is fixedly connected to the end of the spline shaft 5 located outside the wall plate 4, so that the spline shaft 5 can rotate; the driving member establishes a signal connection with the controller.

[0048] Specifically, the support seat 1 is symmetrically mounted on the gate head structure 2, and the support sealing group 3 is mounted on the wall panels 4 on both sides of the gate head to ensure that the spline shaft 5 can maintain a sealed state when passing through the wall panels to prevent water leakage. One end of the spline shaft 5 is connected to the support seat 1, and the other end passes through the support sealing group 3 and extends to the outside of the wall panel 4. In the part located on the inner side of the wall panel 4, the spline shaft 5 is provided with a first external spline 51 for cooperating with the ear plate assembly 6. The ear plate assembly 6 includes an ear plate frame 61 and a spline bushing 62. The top of the ear plate frame 61 is connected to the bottom end of the door leaf 7 to ensure that the movement of the door leaf 7 is synchronized with the ear plate assembly 6. The spline bushings 62 are detachably connected to both sides of the bottom of the ear plate frame 61. The spline bushings 62 are provided with a first internal spline matching the first external spline 51 on the spline shaft 5. This spline matching structure can ensure a stable connection and efficient transmission between the ear plate assembly 6 and the spline shaft 5. The output end of the driving member is fixedly connected to the end of the spline shaft 5 located outside the wall panel 4, and the controller establishes a signal connection with the driving member, thereby realizing the opening and closing of the door leaf 7.

[0049] When it is necessary to open or close the first navigation gate of the ship lift lock, the controller will send an operation instruction to the driver. After receiving the instruction, the driver will start to move immediately, and this movement process will be directly converted into the rotation of the spline shaft 5. When the spline shaft 5 rotates, the first external spline 51 will be tightly matched with the first internal spline of the spline bushing 62 in the ear plate assembly 6, and then the ear plate assembly 6 will convert the rotation of the spline shaft 5 into the opening and closing action of the door leaf 7 to realize the opening and closing of the gate. It is worth mentioning that the spline matching structure adopted by the transmission device has extremely high stability and transmission efficiency. This structure can ensure that the connection between the ear plate assembly 6 and the spline shaft 5 is firm and reliable, and can maintain stable transmission performance even in the case of long-term operation or under heavy load. At the same time, due to the characteristics of the spline matching structure, the ear plate assembly 6 will not generate energy loss in the process of transmitting force, which further improves the operating efficiency of the first navigation gate of the ship lift lock. In addition, the ear plate frame 61 and the spline bushing 62 are detachably connected so that when the ear plate assembly 6 needs to be repaired or replaced, there is no need to disassemble the entire transmission device. Only the damaged parts need to be simply disassembled and replaced, which greatly reduces maintenance costs and repair difficulty.

[0050] In summary, the transmission device of the first navigation gate of the ship lift lock provided in the present application can more effectively transmit force to the door leaf, improve the operating efficiency and reliability of the first navigation gate of the ship lift lock, and reduce maintenance costs.

[0051] Example 2

[0052] See also Figure 2 - Figure 4 This embodiment is further optimized on the basis of embodiment 1, specifically:

[0053] The left and right side vertical plates 63 at the bottom of the ear plate frame 61 are each provided with a first through hole 631, and the center lines of the two first through holes 631 are located on the same axis. The spline bushing 62 includes a main body 621 and a base 622, and the main body 621 is arranged on the base 622. The base 622 and the main body 621 are an integrated piece, and a second through hole 623 is provided at the center, and the first internal spline is arranged on the inner wall of the second through hole 623. The main body 621 is installed in the first through hole 631, and the base 622 and the vertical plate 63 are detachably connected.

[0054] That is to say, at the bottom of the ear plate frame 61, both sides are provided with solid vertical plates 63, and both vertical plates 63 are provided with first through holes 631, and the center lines of the two first through holes 631 are located on the same axis to ensure matching and connection with the spline bushing 62. The spline bushing 62 is composed of a body 621 and a base 622. The center lines of the body 621 and the base 622 are located on the same axis, and are tightly combined through an integrated design to ensure the integrity and stability of the structure. A second through hole 623 is provided at the center of the spline bushing 62, and the inner wall of the second through hole 623 is used to install the first internal spline.

[0055] During installation, the body 621 of the spline bushing 62 is precisely inserted into the first through hole 631 of the vertical plate 63 of the ear plate frame 61. In order to ensure the stability and maintainability of the connection, a detachable connection is adopted between the base 622 and the vertical plate 63. This is not only convenient for maintenance or replacement when necessary, but also can effectively reduce the workload during installation and disassembly, thereby improving work efficiency.

[0056] Example 3

[0057] See also Figure 2 - Figure 4 This embodiment is further optimized on the basis of embodiment 2, specifically:

[0058] The outer side surface of the vertical plate 63 is provided with connecting protrusions 632 and connecting holes 633 evenly distributed around the first through hole 631. The connecting hole 633 is arranged closer to the first through hole 631 than the connecting protrusion 632. The outer peripheral surface of the base 622 is provided with evenly arranged connecting grooves 624. The connecting grooves and the connecting protrusions are arranged correspondingly, so that the connecting protrusions can be fit in the connecting grooves 624. The base 622 is provided with mounting holes 625 evenly arranged around the second through hole 623. The mounting holes 625 are arranged correspondingly to the connecting holes 633, and cooperate with the bolts 64 to realize the connection between the base 622 and the vertical plate 63.

[0059] That is to say, the outer side surface of the vertical plate 63 is evenly distributed with connecting protrusions 632 around the first through hole 631. At the same time, the vertical plate 63 is also provided with connecting holes 633, which are arranged closer to the first through hole 631 than the connecting protrusions 632, so as to facilitate the subsequent fixing by bolts 64. The outer peripheral surface of the base 622 is provided with evenly arranged connecting grooves 624, which correspond one by one to the connecting protrusions 632 on the vertical plate 63. During installation, the connecting protrusions 632 can be accurately fitted in the connecting grooves 624, ensuring that the connection between the base 622 and the vertical plate 63 is both stable and accurate. In order to further strengthen the connection, the base 622 is also provided with mounting holes 625 evenly arranged around the second through hole 623. The above-mentioned mounting holes 625 correspond to the connecting holes 633 on the vertical plate 63, and their function is to tightly connect the base 622 and the vertical plate 63 together through bolts 64. The bolt 64 passes through the connection hole 633 and the mounting hole 625, and is then fixed by a nut to form a firm connection structure. The corresponding cooperation between the connection protrusion 632 and the connection groove 624, and the bolt connection between the mounting hole 625 and the connection hole 633 ensures a tight connection between the base 622 and the vertical plate 63. This not only improves the stability and reliability of the transmission device, but also facilitates subsequent maintenance and replacement work.

[0060] Example 4

[0061] See also Figure 2 - Figure 4 This embodiment is further optimized on the basis of embodiment 3, specifically:

[0062] Specifically, the outer diameter of the body 621 is equal to the aperture of the first through hole 631 .

[0063] That is to say, the outer diameter of the body 621 is equal to the aperture of the first through hole 631, ensuring that the body 621 can be accurately inserted into the first through hole 631 without gaps or looseness. The tight fit not only improves the stability of the transmission, but also reduces the energy loss caused by friction, further improving the transmission efficiency. Secondly, by ensuring the precise match between the outer diameter and the aperture, during the installation process, the staff does not need to make complicated adjustments or corrections, but only needs to directly insert the body 621 into the first through hole 631. This installation method not only improves work efficiency, but also reduces the error rate during the installation process.

[0064] Example 5

[0065] See also Figure 1 and Figure 5 This embodiment is further optimized on the basis of any one of Embodiments 1 to 4, specifically:

[0066] The driving component includes a crank arm 8 and a hydraulic cylinder 9. The first end of the crank arm 8 is fixedly connected to the end of the spline shaft 5 located outside the wall panel 4; one end of the hydraulic cylinder 9 is hinged to the hydraulic cylinder bracket, and the other end is hinged to the second end of the crank arm 8.

[0067] That is to say, the driving member includes a crank arm 8 and a hydraulic cylinder 9. The hydraulic cylinder 9 establishes a signal connection with the controller, and the first end (bottom) of the crank arm 8 is tightly and fixedly connected to the end of the spline shaft 5 located on the outside of the wall panel 4. One end of the hydraulic cylinder 9 is connected to the hydraulic cylinder bracket by a hinge, thereby allowing the hydraulic cylinder 9 to swing at a certain angle when necessary to adapt to different work requirements. The piston rod of the hydraulic cylinder 9 is hinged to the second end (top) of the crank arm 8. The hydraulic cylinder 9 can push or pull the crank arm 8 through telescopic movement, causing the spline shaft 5 to rotate, thereby driving the first navigation gate of the ship lift lock to open or close.

[0068] Example 6

[0069] See also Figure 1 and Figure 5 This embodiment is further optimized on the basis of embodiment 5, specifically:

[0070] The spline shaft 5 is provided with a second external spline 52 , which is located outside the wall plate 4 , and the second end of the crank arm 8 is provided with a second internal spline which is matched and connected with the second external spline 52 .

[0071] That is to say, the spline shaft 5 is carefully provided with a second external spline 52, which is located on the outer side of the wall plate 4, and is convenient for connection with an external driving member and power transmission. A second internal spline is provided at the second end (bottom) of the crank arm 8. The second internal spline and the second external spline 52 can be closely matched and move without clearance.

[0072] Based on the above embodiment, the outer side of the crank arm 8 is detachably connected to a first cover plate 81, which limits the axial movement of the spline shaft 5. The outer side of the support seat 1 is detachably connected to a second cover plate 11, which limits the axial movement of the spline shaft 5.

[0073] In order to further enhance the connection stability between the crank arm 8 and the spline shaft 5, the outer side of the crank arm 8 is detachably connected to the first cover plate 81. The function of the first cover plate 81 is to limit the axial movement of the spline shaft 5. During the transmission process, the spline shaft 5 may produce axial displacement, which may cause instability or even damage to the transmission system. Through the limiting effect of the first cover plate 81, the axial movement of the spline shaft 5 can be effectively prevented, thereby ensuring the stability and reliability of the entire transmission process.

[0074] At the same time, the detachable design of the first cover plate 81 allows the first cover plate 81 to be easily removed when maintenance or replacement of parts is required, thereby conveniently inspecting and repairing the spline shaft 5 and the crank arm 8. Specifically, the first cover plate 81 is tightly connected to the crank arm 8 by bolts.

[0075] The support seat 1 is provided with a support sleeve that fits tightly with the outer circumference of the spline shaft 5, ensuring that the spline shaft 5 can be evenly supported during rotation, reducing wear and vibration caused by uneven force. At the same time, the support sleeve is made of wear-resistant material and can withstand high loads and frequent movements during the transmission process, thereby extending the service life of the support assembly. In order to further enhance the stability and safety of the support seat 1, a removable second cover plate 11 is provided on the outer side of the support seat 1. The second cover plate 11 is tightly connected to the support seat 1 by bolts to limit the axial movement of the spline shaft 5, preventing the axial displacement of the spline shaft 5 that may occur during the transmission process, thereby ensuring the stability and reliability of the transmission system.

[0076] Specifically, the supporting sealing group 3 of the present application includes a bushing, which is detachably connected to the wall panel 4, and a first mounting hole, a second mounting hole and a third mounting hole which are interconnected are provided in the middle of the bushing; a shaft sleeve is arranged in the first mounting hole, and the shaft sleeve is sleeved on the spline shaft 5; a packing is arranged in the third mounting hole, and the packing is sleeved on the spline shaft 5; a first limit plate is detachably connected to the inner end face of the bushing so that the bushing is fixed in the first mounting hole, and a second limit plate is detachably connected to the outer end face of the bushing so that the packing is fixed in the third mounting hole, and also includes an O-ring and a gasket, the O-ring is installed in the second mounting hole, the O-ring is fit with the outer peripheral surface of the spline shaft 5, and the gasket is arranged between the bushing and the wall panel 4.

[0077] An angle sensor is installed on the door leaf 7 or the ear plate frame 61. The angle sensor can monitor and feedback the rotation angle of the door leaf 7 in real time. The angle sensor is installed on the door leaf 7 or the ear plate frame 61 directly connected thereto. Ensure that the sensor can be stably fixed and will not be interfered with by other components. The output signal line of the angle sensor is connected to the input interface of the controller. It can be achieved by wired or wireless means to ensure that the signal connection is stable and reliable. The input parameters of the angle sensor are configured in the controller, including signal type, range, resolution, etc. Set the target angle of door leaf rotation to 90° and configure the corresponding control logic. For example, when the sensor detects that the door leaf 7 rotates to 90°, the controller sends a signal to stop the hydraulic cylinder 9.

[0078] Gate opening working process:

[0079] First, the hydraulic cylinder 9 is started to extend the piston rod, which in turn drives the crank arm 8 to rotate counterclockwise. The counterclockwise rotation of the crank arm 8 causes the spline shaft 5 to rotate counterclockwise through the cooperation of the second internal spline on the crank arm 8 and the second external spline 52 on the spline shaft 5. The counterclockwise rotation of the spline shaft 5 causes the first external spline 51 to cooperate with the first internal spline in the spline bushing 62, thereby driving the lug frame 61 to rotate together. Finally, the lug frame 61 drives the door leaf 7 to rotate counterclockwise. When the door leaf 7 rotates 90° counterclockwise, the door leaf 7 is in a horizontal state, and the gate is in an open state.

[0080] Gate closing working process:

[0081] First, the hydraulic cylinder 9 is started to retract the piston rod, thereby driving the crank arm 8 to rotate clockwise. The clockwise rotation of the crank arm 8 causes the spline shaft 5 to rotate clockwise through the cooperation of the second internal spline on the crank arm 8 and the second external spline 52 on the spline shaft 5. The clockwise rotation of the spline shaft 5 causes the first external spline 51 to cooperate with the first internal spline in the spline bushing 62, thereby driving the lug frame 61 to rotate together. The lug frame 61 drives the door leaf 7 to rotate clockwise. When the door leaf 7 rotates 90° clockwise, the door leaf 7 is in a vertical state, and the gate is in a closed state.

Claims

1. A transmission device for a ship lift lock head navigation lock door, the ship lift lock head navigation lock door comprising a lock head structure (2), a wall plate (4), and a door leaf (7), characterized in that: The transmission device comprises a support seat (1), a support seal group (3), a spline shaft (5), an ear plate assembly (6), a driving member and a controller; The support seat (1) is symmetrically arranged on the gate head structure (2); the support seal group (3) is arranged on the wall plates (4) on both sides of the gate head; One end of the spline shaft (5) is connected to the support seat (1), and the other end passes through the support seal group (3) and extends to the outside of the wall plate (4); a first external spline (51) is provided on the spline shaft (5) located on the inner side of the wall plate (4); The ear plate assembly (6) is symmetrically arranged at the bottom of the door leaf (7), and the ear plate assembly (6) includes an ear plate frame (61), the top of the ear plate frame (61) is connected to the bottom end of the door leaf (7), and the two sides of the bottom of the ear plate frame (61) are detachably connected with spline bushings (62), and the spline bushings (62) are provided with a first internal spline that cooperates with the first external spline (51); The output end of the driving member is fixedly connected to the end of the spline shaft (5) located outside the wall plate (4), so that the spline shaft (5) can rotate; The driving member establishes a signal connection with the controller.

2. The transmission device for the first navigation gate of the ship lift lock according to claim 1, characterized in that: The left and right sides of the bottom of the ear plate frame (61) are both provided with vertical plates (63), each of the vertical plates (63) is provided with a first through hole (631), and the center lines of the two first through holes (631) are located on the same axis; The spline bushing (62) includes a main body (621) and a base (622), wherein the main body (621) is disposed on the base (622), and the base (622) and the main body (621) are an integral part. A second through hole (623) is provided at the center of the spline bushing (62), and the first internal spline is located on the inner wall of the second through hole (623). The main body (621) is installed in the first through hole (631), and the base (622) is detachably connected to the vertical plate (63).

3. The transmission device for the first navigation gate of the ship lift lock according to claim 2, characterized in that: A plurality of connection protrusions (632) and a plurality of connection holes (633) are evenly distributed on the circumference of the outer surface of the vertical plate (63), and each of the connection holes (633) is arranged closer to the first through hole (631) than the connection protrusion (632).

4. The transmission device for the first navigation lock gate of the ship lift lock according to claim 3, characterized in that: The base (622) is circular, and a plurality of connection grooves (624) are evenly distributed on the edge of each base (622) along the circumference. The number of the connection grooves (624) corresponds to the number of the connection protrusions (632) one by one, so that the connection protrusions (632) can fit in the corresponding connection grooves (624).

5. The transmission device for the first navigation gate of the ship lift lock according to claim 4, characterized in that: The base (622) is provided with mounting holes (625) uniformly distributed in a circumference around the second through hole (623); the number of the mounting holes (625) is the same as the number of the connecting holes (633) and corresponds one to one, and the base (622) is connected to the vertical plate (63) by bolts (64) passing through the corresponding mounting holes (625) and the connecting holes (633).

6. The transmission device for the first navigation gate of the ship lift lock according to claim 3, characterized in that: The outer diameter of the body (621) is equal to the aperture of the first through hole (631).

7. The transmission device for the first navigation gate of the ship lift lock according to claim 1, characterized in that: The driving member comprises a crank arm (8) and a hydraulic cylinder (9); the first end of the crank arm (8) is fixedly connected to the end of the spline shaft (5) located outside the wall panel (4); one end of the hydraulic cylinder (9) is hinged to the hydraulic cylinder bracket, and the other end is hinged to the second end of the crank arm (8).

8. The transmission device for the first navigation gate of the ship lift lock according to claim 7, characterized in that: The spline shaft (5) is provided with a second external spline (52), the second external spline (52) is located outside the wall plate (4), and the second end of the crank arm (8) is provided with a second internal spline that cooperates with the second external spline (52).

9. The transmission device for the first navigation gate of the ship lift lock according to claim 7, characterized in that: The outer side surface of the crank arm (8) is detachably connected to a first cover plate (81), and the first cover plate (81) limits the axial movement of the spline shaft (5).

10. The transmission device for the first navigation gate of the ship lift lock according to claim 9, characterized in that: The outer side of the support seat (1) is detachably connected to a second cover plate (11), and the second cover plate (11) limits the axial movement of the spline shaft (5).

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