Gearbox shaft lock device for ships

Abstract

The present application discloses a gearbox shaft locking device for ships, which relates to the technical field related to shipbuilding, and is used to solve the problem of low reliability of the existing gearbox shaft locking device when locking. The gearbox shaft locking device for ships provided by the present application includes: a shaft locking disk, the outer periphery of which is provided with a notch; a mounting seat having a mounting hole, and the mounting hole penetrates the mounting seat along the radial direction of the shaft locking disk; a locking member slidingly fits in the mounting hole, and has a first end and a second end arranged oppositely along its sliding direction, and a first locking portion is provided on the locking member; a driving assembly is installed on the mounting seat and connected to the first end, and can drive the locking member to slide to a locking position; a limiting assembly is provided on the mounting seat, and can connect the first locking portion and the mounting seat; wherein, in the locking position, the second end is connected to the notch, and the limiting assembly connects the first locking portion and the mounting seat. The present application is used to lock the gearbox and the stern shaft end shaft system.

Description

Technical Field

[0001] The present application relates to the technical field related to shipbuilding, and in particular to a gearbox shaft locking device for a ship. Background Art

[0002] When the ship's main engine is under maintenance or shut down, in order to limit the stern propeller from rotating the shaft system due to water erosion, causing wear on the gearbox gears and bearings, it is usually necessary to set a shaft locking device to lock the gearbox shaft system to protect the gearbox and the main engine.

[0003] However, the existing shaft locking device includes a bracket, a shaft locking block installed on the bracket, a lead screw is provided in the shaft locking block, a shaft locking pin is fixed to one end of the lead screw, the front end of the shaft locking pin corresponds to the notch of the shaft locking disk, and the lead screw drives the shaft locking pin to move and extend into the notch. When the connection between the lead screw and the shaft locking pin fails, the locking of the gear box by the shaft locking device will fail, and the locking reliability of the shaft locking device is low. Utility Model Content

[0004] The present application provides a gearbox shaft locking device for a ship, which can solve the problem of low locking reliability of existing gearbox shaft locking devices.

[0005] To achieve the above-mentioned purpose, the present application provides a gearbox shaft locking device for a ship, comprising:

[0006] A shaft locking disk, the outer circumference of which is provided with a notch;

[0007] A mounting seat having a mounting hole, wherein the mounting hole penetrates the mounting seat in a radial direction of the shaft locking disk;

[0008] A locking member, slidably matched with the mounting hole, and having a first end and a second end arranged opposite to each other along a sliding direction thereof, wherein the locking member is provided with a first locking portion;

[0009] A driving assembly, mounted on the mounting seat and connected to the first end, capable of driving the locking member to slide to a locking position;

[0010] A limiting assembly, disposed on the mounting seat and capable of connecting the first locking portion and the mounting seat;

[0011] Wherein, in the locking position, the second end is connected to the notch, and the limiting assembly connects the first locking portion and the mounting seat.

[0012] In this technical solution, the driving component drives the locking member to slide in the mounting hole to the locking position, and then the limiting component arranged on the mounting seat connects the first locking part and the mounting seat, thereby fixing the locking member on the mounting seat to prevent the locking member from moving away from the locking shaft disk when the driving component fails, so as to ensure that the locking member remains in the locking position, thereby avoiding the problem of locking failure of the locking shaft device due to failure of the driving component, and improving the reliability of the locking shaft device.

[0013] In some embodiments of the present application, a second locking portion is further provided on the locking member, the first locking portion and the second locking portion are spaced apart along the sliding direction of the locking member, the second locking portion is closer to the second end relative to the first locking portion, the limiting assembly can be connected to one of the first locking portion and the second locking portion, and separated from the other, and in the locked position, the limiting assembly is connected to the first locking portion and separated from the second locking portion.

[0014] In some embodiments of the present application, the first locking portion is a first locking groove, the mounting seat is provided with a receiving hole, the receiving hole is communicated with the mounting hole and intersects with the extension direction of the mounting hole, and the limiting assembly includes:

[0015] A limit pin is installed in the receiving hole.

[0016] An elastic component is connected to the limit pin. At the locked position, the elastic component elastically acts on the limit pin so that the limit pin extends into the mounting hole and is connected to the first locking groove.

[0017] In some embodiments of the present application, the elastic component includes:

[0018] An abutment member, mounted on the mounting seat and disposed on a side of the accommodating hole facing away from the mounting hole;

[0019] An elastic member is sleeved on the limit pin, and two ends of the elastic member are respectively connected to the limit pin and the abutment member.

[0020] In some embodiments of the present application, the gearbox shaft locking device for a ship further includes:

[0021] A rotation-stopping structure, connecting the locking member and the mounting seat, and limiting the rotation of the locking member in the mounting hole;

[0022] The drive assembly comprises:

[0023] handle;

[0024] A screw rod, one end of which is threadedly connected to the first end, and the other end of which is connected to the handle.

[0025] In some embodiments of the present application, the anti-rotation structure includes:

[0026] A rotation-stop groove provided in the locking member, the rotation-stop groove extending along the sliding direction of the locking member and having a first closed end and a second closed end oppositely provided along the extending direction thereof;

[0027] The protrusion is arranged on the mounting seat and at least partially protrudes from the mounting hole and is connected to the anti-rotation groove.

[0028] In some embodiments of the present application, along the sliding direction of the locking member, the distance between the first locking portion and the second locking portion is greater than the thread matching length of the screw rod and the locking member.

[0029] In some embodiments of the present application, the gearbox shaft locking device for a ship further includes:

[0030] A cover plate is fixedly mounted on a side of the mounting seat facing away from the shaft locking disk, and the screw rod is passed through the cover plate and is rotatably connected to the cover plate;

[0031] A stopper assembly is connected to the cover plate and the screw rod to limit the movement of the screw rod in the extension direction thereof.

[0032] In some embodiments of the present application, the stopper assembly includes:

[0033] A first stop structure, disposed on the outer periphery of the screw;

[0034] The second stop structure is arranged on the outer periphery of the screw rod and has a gap with the first stop structure in the extending direction of the screw rod, and the cover plate is clamped in the gap.

[0035] In some embodiments of the present application, a contact portion is provided on the periphery of the locking member, and the driving assembly drives the locking member to slide between the locking position and the unlocking position. The gearbox shaft locking device for a ship further includes:

[0036] A first travel switch is arranged on the mounting seat, and a triggering portion of the first travel switch is exposed to the mounting hole;

[0037] A second travel switch is disposed on the mounting seat and is spaced apart from the first travel switch along the extending direction of the mounting hole, and a trigger portion of the second travel switch is exposed to the mounting hole;

[0038] Wherein, in the unlocking position, the contact portion contacts the triggering portion of the first travel switch; and in the locking position, the contact portion contacts the triggering portion of the second travel switch.

[0039] In some embodiments of the present application, the locking member is a locking shaft, and the gearbox shaft locking device for a ship further includes:

[0040] A sealing ring is sleeved on the outer circumference of the locking member to seal and connect the locking member and the mounting hole.

[0041] In some embodiments of the present application, the locking member is a locking shaft, and the gearbox shaft locking device for a ship further includes:

[0042] A linear bearing, wherein the inner ring of the linear bearing is slidably matched with the locking shaft, and the outer ring of the linear bearing is connected to the mounting hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0044] Figure 1 It is a structural schematic diagram of a gearbox shaft locking device for a ship in an embodiment of the present application when locking a shaft locking disk;

[0045] Figure 2 is a structural schematic diagram of a gearbox shaft locking device for a ship in an embodiment of the present application in a locked position;

[0046] Figure 3 It is a schematic structural diagram of a locking member in a gearbox shaft locking device for a ship according to an embodiment of the present application;

[0047] Figure 4 is a structural schematic diagram of a gearbox shaft locking device for a ship in an unlocked position according to an embodiment of the present application;

[0048] Figure 5 yes Figure 2 A magnified view of part A in FIG.

[0049] Figure 6 It is a structural schematic diagram of a gearbox shaft locking device for a ship in an embodiment of the present application when unlocking a shaft locking disk.

[0050] The main reference numerals in the drawings of this application specification are described as follows:

[0051] 1-locking disc; 1a-notch;

[0052] 2-mounting seat; 21-mounting hole; 22-accommodating hole;

[0053] 3-locking member; 31-first end; 32-second end; 33-first locking portion; 34-second locking portion; 35-contact portion;

[0054] 4-driving assembly; 41-handle; 42-screw;

[0055] 5-limiting assembly; 51-limiting pin; 52-elastic assembly; 521-abutting member; 522-elastic member;

[0056] 6-cover plate;

[0057] 7-stop assembly; 71-first stop structure; 72-second stop structure;

[0058] 8- anti-rotation structure; 81- anti-rotation groove; 82- protrusion;

[0059] 9- first travel switch;

[0060] 10- second travel switch;

[0061] 11- Sealing ring;

[0062] 12-Linear bearing;

[0063] 13- Fasten the bolts;

[0064] 14-Bearing locating sleeve. DETAILED DESCRIPTION

[0065] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0066] In the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application 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 should not be understood as a limitation on the present application.

[0067] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0068] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0069] The present application provides a gearbox shaft locking device for a ship, which is described in detail below. It should be noted that the description order of the following embodiments does not limit the preferred order of the embodiments of the present application. In the following embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, please refer to the relevant description of other embodiments.

[0070] Figure 1 1 is a schematic structural diagram of a gearbox shaft locking device for a ship in an embodiment of the present application when locking a shaft locking disk. Figure 2 is a structural schematic diagram of a gearbox shaft locking device for a ship in an embodiment of the present application in a locked position, Figure 3 Schematic diagram of the structure of the locking member in the gearbox shaft locking device for ships in the embodiment of the present application. Figure 1 to Figure 3 The gearbox shaft locking device for ships provided in the present application includes a shaft locking disk 1, a mounting seat 2, a locking member 3, a driving assembly 4 and a limiting assembly 5. A notch 1a is provided on the outer periphery of the shaft locking disk 1. The mounting seat 2 has a mounting hole 21, and the mounting hole 21 penetrates the mounting seat 2 along the radial direction of the shaft locking disk 1. The locking member 3 is slidably matched with the mounting hole 21, and has a first end 31 and a second end 32 arranged opposite to each other along its sliding direction, and a first locking portion 33 is provided on the locking member 3. The driving assembly 4 is mounted on the mounting seat 2 and connected to the first end 31, and can drive the locking member 3 to slide to a locking position. The limiting assembly 5 is arranged on the mounting seat 2 and can be connected to the first locking portion 33. Among them, in the locked position, the second end 32 is connected to the notch 1a, and the limiting assembly 5 connects the first locking portion 33 and the mounting seat 2.

[0071] In this technical solution, the driving component 4 drives the locking member 3 to slide in the mounting hole 21 to the locking position, and then the limiting component 5 arranged on the mounting seat 2 connects the first locking portion 33 and the mounting seat 2, thereby fixing the locking member 3 on the mounting seat 2 to prevent the locking member 3 from moving away from the locking shaft disk 1 when the driving component 4 fails, so as to ensure that the locking member 3 remains in the locking position, thereby avoiding the problem of locking failure of the locking shaft device due to failure of the driving component 4, thereby improving the reliability of the locking shaft device.

[0072] It can be understood that the driving assembly 4 can also drive the locking member 3 to slide in the mounting hole 21 to the unlocking position and switch between the unlocking position and the locking position. When in the locking position, the locking member 3 extends out of the mounting hole 21 and is inserted into the notch 1a. When in the unlocking position, the locking member 3 is retracted into the mounting hole 21 and separated from the notch 1a. For example, the shaft lock disk 1 is a disk-mounted structure, on which a plurality of notches 1a are provided, and the plurality of notches 1a are evenly distributed along the circumference of the shaft lock disk 1.

[0073] Figure 4 Schematic diagram of the structure of the gearbox shaft locking device for a ship in the embodiment of the present application in the unlocked position, referring to Figure 2 to Figure 4 The locking member 3 is also provided with a second locking portion 34. The first locking portion 33 and the second locking portion 34 are arranged at intervals along the sliding direction of the locking member 3. The second locking portion 34 is closer to the second end 32 relative to the first locking portion 33, that is, the second locking portion 34 is closer to the locking shaft disk 1 relative to the first locking portion 33. The limiting assembly 5 can be connected to one of the first locking portion 33 and the second locking portion 34, and separated from the other. Thus, the limiting assembly 5 is connected through different locking portions, so that the locking member 3 can be maintained at different positions.

[0074] In specific use, in the locked position, the limit assembly 5 is connected to the first locking portion 33 and separated from the second locking portion 34. In the unlocked position, the limit assembly 5 is connected to the second locking portion 34 and separated from the first locking portion 33, so that the locking member 3 can be kept in the locked position and the unlocked position, so as to avoid the position change of the locking member 3 due to the malfunction of the driving assembly 4 in the unlocked position.

[0075] In some embodiments, the locking member 3 is a locking shaft.

[0076] In some embodiments of the present application, the first locking portion 33 is a first locking groove, the mounting seat 2 is provided with a receiving hole 22, the receiving hole 22 is communicated with the mounting hole 21, and intersects with the extension direction of the mounting hole 21, the limiting assembly 5 includes a limiting pin 51 and an elastic assembly 52, the limiting pin 51 is installed in the receiving hole 22, the elastic assembly 52 is connected to the limiting pin 51, in the locking position, the elastic assembly 52 elastically acts on the limiting pin 51, so that the limiting pin 51 extends into the mounting hole 21 and is connected with the first locking groove. Compared with the technical solution of directly setting the limiting pin 51, the limiting assembly 5 in the aforementioned technical solution also includes the elastic assembly 52, when the driving assembly 4 drives the locking member 3 to slide, when the limiting pin 51 is aligned with the first locking groove, the limiting pin 51 automatically extends into the first locking groove under the elastic action of the elastic assembly 52, and the operation is simple.

[0077] In some other implementations, the second locking portion 34 is a second locking groove.

[0078] Figure 5 yes Figure 2 The enlarged view of part A in Figure 2 and Figure 5 The elastic component 52 includes an abutment member 521 and an elastic member 522. The abutment member 521 is mounted on the mounting seat 2 and is disposed on the side of the accommodating hole 22 facing away from the mounting hole 21. The elastic member 522 is sleeved on the limiting pin 51, and the two ends of the elastic member 522 are respectively connected to the limiting pin 51 and the abutment member 521. This solution has a simple structure and is easy to implement.

[0079] Specifically, Figure 5 As shown, the above-mentioned limit pin 51 is inserted into the abutment 521 and is in clearance fit with the abutment 521, that is, the limit pin 51 can slide relative to the abutment 521, and the top of the abutment 521 is provided with an annular groove with an opening facing upward and concave downward, and the bottom end of the elastic member 522 is accommodated in the annular groove, and the limit pin 51 is provided with a convex ring, which is convexly arranged on the outer periphery of the limit pin 51 along the radial direction of the limit pin 51 away from its central axis, and the convex ring is arranged opposite to the annular groove, and the two ends of the elastic member 522 are respectively abutted against the convex ring and the annular groove. For example, the above-mentioned elastic member 522 is a spring.

[0080] Alternatively, in some other embodiments, the elastic member 522 is directly connected to the limiting pin 51 and the abutting member 521 by welding.

[0081] Continue to refer to Figure 2, the shaft locking device also includes a rotation-stopping structure 8, which connects the locking member 3 and the mounting seat 2 to limit the rotation of the locking member 3 in the mounting hole 21. At the same time, the driving assembly 4 includes a handle 41 and a screw 42. One end of the screw 42 is threadedly connected to the first end 31, and the other end is connected to the handle 41, so that the screw 42 can be driven to rotate by manually rotating the handle 41. Under the restriction of the rotation-stopping structure 8, the locking member 3 can only move or slide along the mounting hole 21. This technical solution is conducive to reducing the manufacturing cost of the shaft locking device. For example, the handle 41 and the screw 42 are connected together by screws and washers. Alternatively, the handle 41 and the screw 42 are welded.

[0082] Alternatively, the driving assembly 4 includes a motor and a gear rack assembly. For example, a gear is sleeved on the output end of the motor, and teeth meshing with the gear are arranged on the locking member 3, so that the locking member 3 slides back and forth under the drive of the motor.

[0083] Based on the above embodiment, the anti-rotation structure 8 includes an anti-rotation groove 81 and a protrusion 82 provided on the locking member 3. The anti-rotation groove 81 extends along the sliding direction of the locking member 3 and has a first closed end and a second closed end opposite to each other along the extending direction thereof. The protrusion 82 is provided on the mounting seat 2 and at least partially protrudes from the mounting hole 21 and is connected to the anti-rotation groove 81. The anti-rotation structure 8 has a simple structure and is easy to implement.

[0084] Of course, the anti-rotation structure 8 includes a key structure, and the locking member 3 and the mounting seat 2 are connected by the key structure. Alternatively, the positions of the anti-rotation groove and the protrusion are interchanged. Alternatively, the cross-sectional shape of the mounting hole 21 is a polygon, and the corresponding cross-sectional shape of the locking member 3 matches it to prevent relative rotation between the two.

[0085] In order to prevent the locking member 3 and the screw rod 42 from being disengaged from each other when the locking member 3 switches between the locked position and the unlocked position, in some embodiments of the present application, along the sliding direction of the locking member 3, the distance between the first locking portion 33 and the second locking portion 34 is greater than the thread matching length of the screw rod 42 and the locking member 3.

[0086] It can be understood that the locking member 3 is provided with a rotation-stop groove 81, which has a first closed end and a second closed end opposite to each other along its extension direction, and the distance between the first closed end and the second closed end is equal to the distance between the first locking portion 33 and the second locking portion 34 in the sliding direction of the locking member 3. Therefore, the cooperation between the rotation-stop groove 81 and the protrusion 82 can not only prevent the relative rotation between the locking member 3 and the mounting seat 2, but also realize the mechanical limitation of the locking member 3 in the locked position and the unlocked position.

[0087] Continue to refer to Figure 2The above-mentioned shaft locking device further includes a cover plate 6 and a stopper assembly 7. The cover plate 6 is fixedly mounted on the side of the mounting base 2 facing away from the shaft locking disk 1. The screw rod 42 is passed through the cover plate 6 and is rotatably connected to the cover plate 6. The stopper assembly 7 connects the cover plate 6 and the screw rod 42 to limit the movement of the screw rod 42 in the extension direction thereof to realize the rotation of the screw rod 42. For example, the cover plate 6 is fixedly connected to the mounting base 2 by a plurality of fastening bolts 13.

[0088] In other embodiments, an annular stop groove is provided on the outer periphery of the screw rod 42, that is, the diameter of the screw rod 42 at the position of the annular stop groove is smaller than the diameter of other parts, and correspondingly, the cover plate 6 is at least partially embedded in the annular stop groove.

[0089] Among them, refer to Figure 2 The stop assembly 7 includes a first stop structure 71 and a second stop structure 72. The first stop structure 71 is arranged on the outer periphery of the screw rod 42. The second stop structure 72 is arranged on the outer periphery of the screw rod 42, and has a gap with the first stop structure 71 in the extension direction of the screw rod 42, and the cover plate 6 is clamped in the gap. For example, the first stop structure 71 is arranged close to the handle 41 relative to the second stop structure 72, and the first stop structure 71 includes two positioning nuts. The second stop structure 72 includes an annular boss arranged on the screw rod 42.

[0090] Continue to refer to Figure 2 and Figure 4 , a contact portion 35 is provided on the periphery of the locking member 3, and the driving assembly 4 drives the locking member 3 to slide between the locking position and the unlocking position. The gearbox shaft locking device for ships also includes a first travel switch 9 and a second travel switch 10. The first travel switch 9 is arranged on the mounting seat 2, and the trigger portion of the first travel switch 9 is exposed to the mounting hole 21. The second travel switch 10 is arranged on the mounting seat 2, and is spaced apart from the first travel switch 9 along the extension direction of the mounting hole 21, and the trigger portion of the second travel switch 10 is exposed to the mounting hole 21. Among them, in the unlocking position, the contact portion 35 contacts the trigger portion of the first travel switch 9. In the locking position, the contact portion 35 contacts the trigger portion of the second travel switch 10, thereby realizing the transmission of the locking signal and the unlocking signal of the locking member 3, and the position information of the locking member 3 can be transmitted to the gearbox control box, providing the necessary interlocking signal for the control program of the control box. By way of example, the above-mentioned contact portion 35 is arranged near the first end 31 of the locking member 3, and is a protruding structure arranged on the periphery of the locking member 3, which can be a finger-like structure or a Figure 2 The annular protruding structure shown.

[0091] In some embodiments of the present application, the locking member 3 is a locking shaft, and the gearbox shaft locking device for a ship further includes a sealing ring 11. The sealing ring 11 is sleeved on the outer periphery of the locking member 3, sealingly connecting the locking member 3 and the mounting hole 21, thereby preventing dust and other impurities from entering the sliding space of the locking member 3, thereby causing the sliding of the locking member 3 to become stuck.

[0092] In some embodiments of the present application, the locking member 3 is a locking shaft, and the gearbox locking device for ships also includes a linear bearing 12. The inner ring of the linear bearing 12 is slidably matched with the locking shaft, and the outer ring of the linear bearing 12 is connected to the mounting hole 21, thereby realizing the axial sliding function of the locking member 3 by the linear bearing 12 bearing the radial force of the shaft system when the locking member 3 is in the locked position. For example, the rated power of the main engine connected to the gearbox is 2240kW, the input speed is 2100rpm, the speed ratio is 6.97, and the output speed is 301.3rpm. The above-mentioned locking device is installed at the output end, and the locking device is required to withstand a torque of 65% of the rated torque of the output end. The torque value is calculated to be 46.15kNm. According to the distribution position of the output shaft positioning pin hole, the maximum radial force that the locking device needs to withstand is 165kN, which is less than the maximum radial force of 500kN that the linear sliding bearing can withstand.

[0093] For example, there are two linear bearings 12, and the two linear bearings 12 are arranged at intervals, and a bearing positioning sleeve 14 is provided between the two linear bearings 12 to realize the positioning function of the two linear bearings 12. The axial movement of the screw 42 is limited by the first stop structure 71 and the cover plate 6, and the screw 42 can only rotate clockwise and counterclockwise. The locking member 3 is limited by the rotation stop assembly 7 to only move axially. The screw 42 and the locking member 3 are connected by a trapezoidal thread.

[0094] When in use, the screw rod 42 is rotated counterclockwise by the handle 41, and the trapezoidal thread exits the threaded hole, pushing the locking member 3 to Figure 2 The right side movement shown in the figure, the locking member is inserted into the corresponding notch 1a on the locking plate 1, locking the shaft system, as shown in the figure. Figure 1 and Figure 2 shown.

[0095] like Figure 4 and Figure 6 As shown, the screw rod 42 is rotated clockwise by the handle 41, the trapezoidal thread is screwed into the threaded hole, and the locking member 3 is pulled Figure 4 In the left side movement shown, the locking member 3 exits the corresponding notch 1a on the shaft locking disk 1, releasing the shaft system lock.

[0096] Among them, there are two grooves on the locking member 3, which are respectively used to form the first locking part 33 and the second locking part 34 opposite to each other, and correspond to the locking position and the unlocking position respectively. The limiting component 5 can be inserted into the corresponding groove at the corresponding position to prevent the locking shaft device from sliding and rotating.

[0097] In the description of this specification, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

[0098] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims. In addition, the specification uses specific examples to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method and its core idea of ​​the present application. The content of this specification should not be understood as a limitation on the present application.

Claims

1. A gearbox shaft locking device for a ship, characterized in that: include: A shaft locking disk, the outer circumference of which is provided with a notch; A mounting seat having a mounting hole, wherein the mounting hole penetrates the mounting seat along the radial direction of the shaft locking disk; A locking member, slidably matched with the mounting hole, and having a first end and a second end arranged opposite to each other along a sliding direction thereof, wherein the locking member is provided with a first locking portion; A driving assembly, mounted on the mounting seat and connected to the first end, capable of driving the locking member to slide to a locking position; A limiting assembly, disposed on the mounting seat and capable of connecting the first locking portion and the mounting seat; Wherein, in the locking position, the second end is connected to the notch, and the limiting assembly connects the first locking portion and the mounting seat.

2. The gearbox shaft locking device for ships according to claim 1, characterized in that: The locking member is also provided with a second locking portion, the first locking portion and the second locking portion are spaced apart along the sliding direction of the locking member, the second locking portion is closer to the second end relative to the first locking portion, the limiting assembly can be connected to one of the first locking portion and the second locking portion and separated from the other, and in the locked position, the limiting assembly is connected to the first locking portion and separated from the second locking portion.

3. The gearbox shaft locking device for ships according to claim 1 or 2, characterized in that: The first locking portion is a first locking groove, the mounting seat is provided with a receiving hole, the receiving hole is communicated with the mounting hole and intersects with the extending direction of the mounting hole, and the limiting assembly includes: A limit pin is installed in the receiving hole. An elastic component is connected to the limit pin. At the locked position, the elastic component elastically acts on the limit pin so that the limit pin extends into the mounting hole and is connected to the first locking groove.

4. The gearbox shaft locking device for ships according to claim 3, characterized in that: The elastic component comprises: An abutment member, mounted on the mounting seat and disposed on a side of the accommodating hole facing away from the mounting hole; An elastic member is sleeved on the limit pin, and two ends of the elastic member are respectively connected to the limit pin and the abutment member.

5. The gearbox shaft locking device for ships according to claim 2, characterized in that: Also includes: A rotation-stopping structure, connecting the locking member and the mounting seat, and limiting the rotation of the locking member in the mounting hole; The drive assembly comprises: handle; A screw rod, one end of which is threadedly connected to the first end, and the other end of which is connected to the handle.

6. The gearbox shaft locking device for ships according to claim 5, characterized in that: The anti-rotation structure comprises: A rotation-stop groove provided in the locking member, the rotation-stop groove extending along the sliding direction of the locking member and having a first closed end and a second closed end oppositely provided along the extending direction thereof; The protrusion is arranged on the mounting seat and at least partially protrudes from the mounting hole and is connected to the anti-rotation groove.

7. The gearbox shaft locking device for a ship according to claim 5, characterized in that: Along the sliding direction of the locking member, the distance between the first locking portion and the second locking portion is greater than the thread matching length of the screw rod and the locking member.

8. The gearbox shaft locking device for a ship according to claim 5, characterized in that: Also includes: A cover plate is fixedly mounted on a side of the mounting seat facing away from the shaft locking disk, and the screw rod is passed through the cover plate and is rotatably connected to the cover plate; A stopper assembly is connected to the cover plate and the screw rod to limit the movement of the screw rod in the extension direction thereof.

9. The gearbox shaft locking device for a ship according to claim 8, characterized in that: The stopper assembly comprises: A first stop structure, disposed on the outer periphery of the screw; The second stop structure is arranged on the outer periphery of the screw rod and has a gap with the first stop structure in the extending direction of the screw rod, and the cover plate is clamped in the gap.

10. The gearbox shaft locking device for a ship according to claim 1, characterized in that: The outer periphery of the locking member is provided with a contact portion, and the driving assembly drives the locking member to slide between the locking position and the unlocking position. The gearbox shaft locking device for a ship further includes: A first travel switch is arranged on the mounting seat, and a triggering portion of the first travel switch is exposed to the mounting hole; A second travel switch is disposed on the mounting seat and is spaced apart from the first travel switch along the extending direction of the mounting hole, and a trigger portion of the second travel switch is exposed to the mounting hole; Wherein, in the unlocking position, the contact portion contacts the triggering portion of the first travel switch; and in the locking position, the contact portion contacts the triggering portion of the second travel switch.

11. The gearbox shaft locking device for a ship according to claim 1, characterized in that: The locking member is a locking shaft, and the gearbox shaft locking device for a ship further includes: A sealing ring is sleeved on the outer circumference of the locking member to seal and connect the locking member and the mounting hole.

12. The gearbox shaft locking device for a ship according to claim 1, characterized in that: The locking member is a locking shaft, and the gearbox shaft locking device for a ship further includes: A linear bearing, wherein the inner ring of the linear bearing is slidably matched with the locking shaft, and the outer ring of the linear bearing is connected to the mounting hole.

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