Ship shafting locking device

Abstract

The invention relates to the technical field of ship construction, in particular to a ship shafting locking device which comprises a mechanical locking device, a brake disc and a base. The brake disc is used for being arranged on the outer circumference of a shafting in a sleeving mode and synchronously moving, the mechanical locking device is arranged on the base in a sliding mode and used for locking the brake disc, and the base is used for being fixed to a ship body. The ship shafting locking device aims at solving the problems that an existing ship shafting locking device is complex in structure and high in cost.

Description

Technical Field

[0001] The invention relates to the technical field of ship construction, and in particular to a ship shaft locking device. Background Art

[0002] The ship shaft system is an important part of the ship power plant. It is responsible for transmitting the power generated by the main engine to the propeller, and then transmitting the axial thrust generated by the propeller to the hull to achieve the purpose of pushing the ship to sail. With the development trend of large-scale ships, the double shaft system design is becoming more and more widely used. Double shaft system ships have the characteristics of high speed, high propulsion efficiency, good maneuverability and high safety. For ships with double propulsion shaft systems, it is generally necessary to equip each propulsion shaft system with a shaft system locking device. When one shaft system is operating normally to propel the ship, and the other shaft system needs to stop working for some reason, or the ship is stopped for maintenance, a shaft system locking device, that is, a shaft locking device, is used to lock and fix the stopped shaft system to prevent the shaft system from moving with it, thereby causing damage to the related shaft system components. In order to ensure that the shaft system is in a stable locking state under the locking condition and is easy to operate, it is necessary to select or design a suitable type of shaft locking device according to the shaft system layout characteristics of the ship type being built. In the existing devices, the disc shaft locking device usually uses a hydraulic brake device, and the number is 3 or more, so that it can have a good braking and shaft locking effect, so the cost is very high.

[0003] Therefore, the inventor provides a ship shaft locking device. Summary of the invention

[0004] (1) Technical issues to be solved

[0005] The embodiment of the present invention provides a ship shaft locking device, which solves the technical problems of the existing ship shaft locking device having a complex structure and high cost.

[0006] (2) Technical solution

[0007] The present invention provides a ship shaft locking device, comprising a mechanical locking device, a brake disc and a base; the brake disc is used to be sleeved on the outer circumference of the shaft and move synchronously, the mechanical locking device is slidably arranged on the base and is used to lock the brake disc, and the base is used to be fixed on the hull.

[0008] Furthermore, a plurality of slots are provided in the outer circumferential direction of the brake disc, and the mechanical locking device is provided with pins matched with the slots.

[0009] Furthermore, the center height of the pin is the same as the center height of the shaft system.

[0010] Furthermore, the plurality of clamping grooves are evenly distributed along the outer circumference of the brake disc.

[0011] Furthermore, the card slot is a U-shaped card slot.

[0012] Furthermore, a guide rail is provided on the base, and the mechanical locking device is slidably mounted on the guide rail and achieves locking / unlocking of the shaft system by approaching / moving away from the brake disc.

[0013] Furthermore, the length direction of the guide rail is perpendicular to the length direction of the shaft system.

[0014] Furthermore, the brake disc is mounted on the outer peripheral wall of the shaft system through a flange.

[0015] Furthermore, the brake disc and the center plane of the mechanical locking device are located in the same plane.

[0016] Furthermore, the mechanical locking device is a manual push-pull control device.

[0017] (3) Beneficial effects

[0018] In summary, the present invention achieves horizontal sliding of the mechanical locking device on the base. When the ship shaft system is running, the turning machine brakes the shaft system, causing the shaft system to slowly stop at a stationary state, and the mechanical locking device is slowly pushed along the guide rail to one side of the brake disc. The mechanical locking device cooperates with the brake disc to lock, thereby locking and fixing the shaft system. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments of the present invention are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 It is a structural schematic diagram of a ship shaft locking device provided by an embodiment of the present invention;

[0021] Figure 2 It is a structural schematic diagram of a mechanical locking device in a ship shaft locking device provided by an embodiment of the present invention.

[0022] In the figure:

[0023] 1-mechanical locking device; 101-pin; 2-brake disc; 201-slot; 3-base; 4-axis system. DETAILED DESCRIPTION

[0024] The following is a further detailed description of the embodiments of the present invention in conjunction with the accompanying drawings and examples. The detailed description of the following embodiments and the accompanying drawings are used to exemplarily illustrate the principles of the present invention, but cannot be used to limit the scope of the present invention, that is, the present invention is not limited to the described embodiments, and covers any modification, replacement and improvement of parts, components and connection modes without departing from the spirit of the present invention.

[0025] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0026] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", 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 products of the present invention are conventionally placed when in use, or are the orientations or positional relationships conventionally understood by those skilled in the art. These are merely 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 should not be understood as a limitation on the present invention.

[0027] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "setting" and "installation" 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 direct connection, or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] Figure 1 is a structural schematic diagram of a ship shaft locking device provided by an embodiment of the present invention, see Figure 1 The device may include a mechanical locking device 1, a brake disc 2 and a base 3; the brake disc 2 is used to be sleeved on the outer circumference of the shaft system 4 and move synchronously, the mechanical locking device 1 is slidably set on the base 3 and is used to lock the brake disc 2, and the base 3 is used to be fixed on the hull.

[0029] In the above embodiment, the mechanical locking device 1 is located on the positive side of the shaft system 4, is arranged on the guide rail of the base 3, and has a pin 101 on the mechanical locking device 1 that fits with the slot 201 of the brake disc 2; the base 3 is fixed to the hull by welding; the brake disc 2 is installed between the flanges of the ship's shaft system through a flange connection.

[0030] Specifically, the dual shaft systems of the ship are operating normally. When one shaft system is operating normally to propel the ship, and the other shaft system needs to stop working for some reason, the turning machine is started to produce a braking effect on the operating shaft system 4, and one shaft system 4 is decelerated to a stationary state, and one of the slots of the brake disc 2 is located in the horizontal direction and aligned with the pin of the mechanical locking device 1. The mechanical locking device 1 is slowly and manually pushed toward the brake disc 2 along the guide rail of the base 3, and fits with the horizontal slot on the brake disc 2 to prevent the brake disc 2 from continuing to operate, thereby locking and fixing the shaft system 4. When the shaft system 4 is to be transformed from a locked state to operation, the mechanical locking device 1 is used to release the effect on the brake disc 2, and the mechanical locking device 1 is pushed along the guide rail on the base 3 to the end away from the brake disc 2 to release the lock.

[0031] By fixing the mechanical locking device 1 to the guide rail of the base 3 with longitudinal bolts, the mechanical locking device 1 is only allowed to slide horizontally along the guide rail on the base 3, thereby controlling the brake disc 2 that fits with the pin of the mechanical locking device 1, thereby preventing the shaft system 4 from running.

[0032] As an optional implementation, Figure 1-2 As shown, a plurality of slots 201 are provided in the outer circumferential direction of the brake disc 2, and the mechanical locking device 1 is provided with pins 101 adapted to the slots 201. The mechanical locking device 1 can achieve the locking function of the brake disc 2 by the mutual cooperation between the slots 201 and the pins 101.

[0033] Furthermore, if Figure 1 As shown, the center height of the pin 101 is the same as the center height of the shaft system 4, and the center planes of the brake disc 2 and the mechanical locking device 1 are located in the same plane. The above-mentioned structural design form of the same height and the same plane can ensure higher locking stability.

[0034] In addition, the length direction of the guide rail is perpendicular to the length direction of the shaft system 4, and the brake disc 2 is mounted on the outer peripheral wall of the shaft system 4 through a flange. The mechanical locking device 1 is slidably mounted on the guide rail and locks / unlocks the shaft system 4 by approaching / moving away from the brake disc 2.

[0035] like Figure 1 As shown, a plurality of slots 201 are evenly distributed along the outer circumference of the brake disc 2, and the slots 201 are U-shaped slots. The design of the U-shaped slot can ensure that when it cooperates with the pin 101 (generally cylindrical), the relative movement distance between the two is smaller after the pin 101 enters the opening of the slot 201, and the size is more suitable, so as to meet the locking precision requirements.

[0036] It should be clear that the various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. The present invention is not limited to the specific steps and structures described above and shown in the figures. In addition, for the sake of brevity, a detailed description of known methods and technologies is omitted here.

[0037] The above are only embodiments of the present application and are not limited to the present application. For those skilled in the art, the present application may have various changes and variations without departing from the scope of the present invention. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. A ship shaft locking device, characterized in that: The invention comprises a mechanical locking device (1), a brake disc (2) and a base (3); the brake disc (2) is used to be sleeved on the outer circumference of a shaft system (4) and to move synchronously; the mechanical locking device (1) is slidably arranged on the base (3) and is used to lock the brake disc (2); and the base (3) is used to be fixed on a ship body.

2. The ship shaft locking device according to claim 1, characterized in that: A plurality of slots (201) are provided in the outer circumferential direction of the brake disc (2), and the mechanical locking device (1) is provided with pins (101) matched with the slots (201).

3. The ship shaft locking device according to claim 2, characterized in that: The center height of the pin (101) is the same as the center height of the shaft system (4).

4. The ship shaft locking device according to claim 2, characterized in that: The plurality of clamping grooves (201) are evenly distributed along the outer circumference of the brake disc (2).

5. The ship shaft locking device according to claim 2, characterized in that: The card slot (201) is a U-shaped card slot.

6. The ship shaft locking device according to claim 1, characterized in that: A guide rail is provided on the base (3), and the mechanical locking device (1) is slidably mounted on the guide rail and achieves locking / unlocking of the shaft system (4) by moving closer to / away from the brake disc (2).

7. The ship shaft locking device according to claim 6, characterized in that: The length direction of the guide rail is perpendicular to the length direction of the shaft system (4).

8. The ship shaft locking device according to claim 1, characterized in that: The brake disc (2) is mounted on the outer peripheral wall of the shaft system (4) via a flange.

9. The ship shaft locking device according to claim 1, characterized in that: The center plane of the brake disc (2) and the mechanical locking device (1) are located in the same plane.

10. The ship shaft locking device according to claim 1, characterized in that: The mechanical locking device (1) is a manual push-pull control device.

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