Ship lock shaft device

Abstract

The utility model discloses a ship lock shaft device which comprises a lock shaft wheel and a lock shaft fixing seat, a plurality of lock shaft wheel teeth are evenly distributed on the circumferential face of the lock shaft wheel, a lock shaft block is movably arranged on the lock shaft fixing seat in the radial direction of the lock shaft wheel, and an arc face opposite to the circumferential face where the lock shaft wheel teeth on the lock shaft wheel are located is arranged on the lock shaft block. A plurality of shaft locking block teeth are arranged on the arc surface and can be embedded with the shaft locking wheel teeth; the lock shaft block is in transmission connection with a lock shaft driving device, and the lock shaft block keeps the lock shaft position through a locking device at the lock shaft position where the lock shaft block teeth are embedded with the lock shaft gear teeth. By the adoption of the ship shaft locking device, the shaft locking process can be automatically carried out, and reliable locking can be kept.

Description

Technical Field

[0001] The utility model relates to a mechanical device used in ships, in particular to a locking device for a ship shaft system. Background Art

[0002] The ship's shafting system transmits the engine's power to the propeller to drive the ship's navigation. When the ship is at a standstill, the engine and corresponding lubrication system stop working, and the propeller will rotate under the impact of the water flow, which will in turn drive the engine's crankshaft to rotate, causing unnecessary dry wear on the transmission device. Therefore, the shafting system must be fixed by a shaft locking device. The pin-type shaft locking device is a commonly used ship shafting locking device. It prevents the ship's shafting system from rotating by inserting a pin installed on a fixed seat into the pin hole of a locking wheel installed on the ship's shafting system. The shaft locking process must be performed manually, and the pin and pin hole must fit well to avoid continuous impact between the two when the shafting system rotates disorderly due to the impact of water flow, which affects the service life. This makes it difficult to align the pin and insert it into the pin hole during the shaft locking operation. Utility Model Content

[0003] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is to provide a ship shaft locking device, which can automatically carry out the shaft locking process and maintain reliable locking.

[0004] In order to solve the above technical problems, the utility model provides a ship shaft locking device, including a shaft locking wheel and a shaft locking fixing seat, a plurality of shaft locking teeth are evenly distributed on the circumferential surface of the shaft locking wheel, a shaft locking block is provided on the shaft locking fixing seat for movement along the radial direction of the shaft locking wheel, a circular arc surface is provided on the shaft locking block which is opposite to the circumferential surface where the shaft locking teeth on the shaft locking wheel are located, a plurality of shaft locking block teeth are provided on the circular arc surface, and each shaft locking block tooth can be engaged with the shaft locking wheel teeth; the shaft locking block is transmission-connected to the shaft locking driving device, and in the shaft locking position where the shaft locking block teeth are engaged with the shaft locking wheel teeth, the shaft locking block maintains the shaft locking position through a locking device.

[0005] In the above structure, since there are a plurality of locking shaft teeth evenly distributed on the circumferential surface of the locking shaft wheel, a locking shaft block is provided on the locking shaft fixing seat along the radial direction of the locking shaft wheel, and an arc surface is provided on the locking shaft block which is opposite to the circumferential surface where the locking shaft teeth on the locking shaft wheel are located, and a plurality of locking shaft block teeth are provided on the arc surface, each locking shaft block tooth can be engaged with the locking shaft wheel teeth; no matter where the locking shaft wheel is in the circumferential direction, the locking shaft block can move along the radial direction of the locking shaft wheel at any time until the locking shaft block teeth are engaged with the locking shaft wheel teeth. After the locking shaft block teeth are engaged with the locking shaft wheel teeth, the locking shaft block provided on the locking shaft fixing seat will limit the rotation of the locking shaft wheel through the locking shaft block teeth, thereby locking the ship's shaft system. During this period, there is no need to consider the alignment problem between the locking shaft block and the locking shaft wheel, which facilitates the automatic locking process.

[0006] Since the shaft locking block is in transmission connection with the shaft locking drive device, the shaft locking drive device can drive the shaft locking block to move radially along the shaft locking wheel to automatically lock the shaft. The shaft locking drive device can be remotely controlled, thereby realizing automatic operation of the shaft locking process.

[0007] Also, since the lock block maintains the lock position through the locking device when the lock block teeth are engaged with the lock wheel teeth, the locking device locks the lock block in the lock position. Even if all control devices are in an inoperative state after the ship stops sailing, the lock position of the lock block will be maintained by the locking device, ensuring the stability and reliability of the lock state.

[0008] In a preferred embodiment of the present invention, the shaft locking block is supported on the shaft locking fixed seat by a shaft locking block slide rail along the radial direction of the shaft locking wheel. With this embodiment, the shaft locking block moves under the guidance of the shaft locking block slide rail, and the movement process is flexible and stable.

[0009] In another preferred embodiment of the present invention, the cross-sections of the locking shaft wheel teeth and the locking shaft block teeth are triangular, and clearance grooves are provided at the root of the teeth between two adjacent locking shaft wheel teeth and at the root of the teeth between two adjacent locking shaft block teeth. With this embodiment, the triangular-cross-sectional locking shaft wheel teeth and the locking shaft block teeth can be inserted without any problems. The clearance grooves at the root of the locking shaft wheel teeth and the locking shaft block teeth ensure that the side surfaces of each locking shaft wheel tooth and the corresponding locking shaft block tooth are closely aligned with each other without any side clearance, and the locking shaft wheel and the locking shaft block will not be loose.

[0010] In another preferred embodiment of the present invention, a wedge mechanism is provided between the shaft lock block and the shaft lock fixing seat. The working wedge of the wedge mechanism is fixed to the shaft lock block, and the active wedge of the wedge mechanism is movably supported on the shaft lock fixing seat via a wedge slide rail. The wedge slide rail is arranged perpendicular to the shaft lock block slide rail, and the shaft lock drive device is connected to the active wedge. In this embodiment, the active wedge in the wedge mechanism can be reciprocated by the shaft lock drive device. This will cause the shaft lock block to reciprocate along the radial direction of the shaft lock wheel through the working wedge, thereby achieving the locking and unlocking of the ship's shaft system.

[0011] In a further preferred embodiment of the present invention, the locking shaft driving device is a pneumatic cylinder or a hydraulic cylinder. With this embodiment, the pneumatic cylinder and the hydraulic cylinder can conveniently drive the active wedge to reciprocate.

[0012] In another further preferred embodiment of the present invention, the locking device is a mechanical locking device. With this embodiment, the mechanical locking device works stably and reliably, and can ensure that the pin shaft state is reliably maintained.

[0013] In a further preferred embodiment of the present invention, the locking device includes a locking slot provided on the active wedge, and a locking block provided on the shaft lock holder. The locking block slides into the locking slot under its own weight. With this embodiment, the locking block automatically inserts into the locking slot when the active wedge reaches the shaft lock position, preventing the active wedge from moving further and thus preventing the shaft lock block from leaving the shaft lock position, thereby ensuring the reliability of the shaft system locking.

[0014] In a further preferred embodiment of the present invention, an unlocking handle is provided on the locking block. With this embodiment, when it is necessary to unlock the locked ship shafting, the locking block inserted into the locking slot can be manually removed and unlocked by the operator using the unlocking handle, thus avoiding possible malfunction caused by unlocking by other mechanisms and ensuring that the shaft remains locked after locking and before unlocking. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The ship shaft locking device of the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0016] Figure 1 This is a structural diagram of a specific embodiment of the ship shaft locking device of the utility model;

[0017] Figure 2 yes Figure 1 a top view of the structure shown;

[0018] Figure 3 yes Figure 1 A partial enlarged view of site I in the structure shown.

[0019] In the figure: 1-locking shaft fixing seat, 2-locking shaft block slide rail, 3-locking shaft block, 31-locking shaft block teeth, 4-locking shaft wheel, 41-locking shaft wheel teeth, 5-angled wedge mechanism, 51-working angled wedge, 52-active angled wedge, 6-angled wedge slide rail, 7-locking device, 71-locking block, 72-locking slot, 73-unlocking handle, 8-locking shaft driving device, 9-angle clearing slot. DETAILED DESCRIPTION

[0020] exist Figure 1 and Figure 2The cam 4 is provided with a plurality of teeth 41 for locking the shaft, and the teeth 42 are provided on the cam 4 so as to be locked in the cam 4. Figure 3 The cross-sections of the lock shaft gear teeth 41 and the lock shaft block teeth 31 are both triangular, and angle clearance grooves 9 are provided at the tooth roots between two adjacent lock shaft gear teeth 41 and the tooth roots between two adjacent lock shaft block teeth 31 to ensure that the tooth tops of the lock shaft gear teeth 41 and the tooth tops of the lock shaft block teeth 31 do not interfere with the tooth roots of the opposite lock shaft block 3 or the tooth roots of the lock shaft wheel 4, and the relative tooth side surfaces can fit together when the lock shaft gear teeth 41 and the lock shaft block teeth 31 are both engaged.

[0021] The locking shaft block 3 is transmission-connected to the locking shaft drive device 8. As a preferred embodiment, a wedge mechanism 5 is provided between the locking shaft block 3 and the locking shaft fixing seat 1. The working wedge 51 of the wedge mechanism 5 is fixed on the locking shaft block 3. The active wedge 52 of the wedge mechanism 5 is movably supported on the locking shaft fixing seat 1 through the wedge slide rail 6. The wedge slide rail 6 is vertically arranged in space with the locking shaft block slide rail 2. Similar to the locking shaft block slide rail 2, the wedge slide rail 6 can be simply in the form of a rectangular convex tenon and a rectangular mortise and tenon or a dovetail tenon and a dovetail groove, or a linear guide pair can be used. The locking shaft drive device 8 is connected to the active wedge 52. The locking shaft drive device 8 is a pneumatic cylinder or a hydraulic cylinder. When the shaft needs to be locked, the piston rod of the pneumatic cylinder or hydraulic cylinder of the locking shaft drive device 8 extends forward to drive the active wedge 52 to move forward, causing the working wedge 51 to move upward until the locking shaft block teeth 31 are engaged with the locking shaft gear teeth 41 to achieve shaft locking.

[0022] In the locking position where the locking block teeth 31 and the locking wheel teeth 41 are engaged, the locking block 3 maintains the locking position through the locking device 7. As a preferred embodiment, the locking device 7 is a mechanical locking device, which includes a locking slot 72 arranged on the active wedge 52, and a locking block 71 is provided on the locking fixed seat 1. The locking block 71 is movable up and down in the block slide groove on the locking fixed seat 1, so that the locking block 71 can automatically slide into the locking slot 72 by its own weight, and the active wedge 52 cannot move forward and backward, so the locking position is maintained.

[0023] An unlocking handle 73 is provided on the locking block 71. The unlocking handle 73 can be simply a columnar object passing through the upper end of the locking block. When the ship's shaft system needs to be unlocked, the unlocking handle 73 is manually lifted to disengage the locking block 71 from the locking slot 72. The active wedge 52 retreats under the drive of the shaft lock drive device 8, and the shaft lock block 3 automatically descends by its own weight to separate the shaft lock block teeth 31 from the shaft lock wheel teeth 41. The shaft lock wheel 4 can rotate freely, and the ship's shaft system is unlocked.

[0024] The above only lists some preferred embodiments of the present invention, but the present invention is not limited thereto and many improvements and modifications can be made. As long as the improvements and modifications are made based on the basic principles of the present invention, they should be considered to fall within the scope of protection of the present invention.

Claims

1. A ship shaft locking device, comprising a shaft locking wheel (4) and a shaft locking fixing seat (1), characterized in that: A plurality of locking shaft teeth (41) are evenly distributed on the circumferential surface of the locking shaft wheel (4); a locking shaft block (3) is movably provided on the locking shaft fixing seat (1) along the radial direction of the locking shaft wheel (4); a circular arc surface is provided on the locking shaft block (3) which is opposite to the circumferential surface where the locking shaft teeth (41) on the locking shaft wheel (4) are located; a plurality of locking shaft block teeth (31) are provided on the circular arc surface; each locking shaft block tooth (31) can be engaged with the locking shaft wheel teeth (41); the locking shaft block (3) is connected to the locking shaft driving device (8) in a transmission manner; at the locking shaft position where the locking shaft block teeth (31) are engaged with the locking shaft wheel teeth (41), the locking shaft block (3) maintains the locking shaft position through a locking device (7).

2. The ship shaft locking device according to claim 1, characterized in that: The shaft locking block (3) is supported on the shaft locking fixed seat (1) in a radially movable manner along the shaft locking wheel (4) via the shaft locking block slide rail (2).

3. The ship shaft locking device according to claim 1, characterized in that: The cross sections of the shaft-locking gear teeth (41) and the shaft-locking block teeth (31) are triangular, and the tooth roots between two adjacent shaft-locking gear teeth (41) and the tooth roots between two adjacent shaft-locking block teeth (31) are both provided with angle-clearing grooves (9).

4. The ship shaft locking device according to claim 1, characterized in that: A wedge mechanism (5) is provided between the shaft locking block (3) and the shaft locking fixed seat (1); a working wedge (51) of the wedge mechanism (5) is fixed on the shaft locking block (3); an active wedge (52) of the wedge mechanism (5) is movably supported on the shaft locking fixed seat (1) via a wedge slide rail (6); the wedge slide rail (6) and the shaft locking block slide rail (2) are vertically arranged in space; and the shaft locking drive device (8) is connected to the active wedge (52).

5. The ship shaft locking device according to claim 1 or 4, characterized in that: The shaft locking drive device (8) is a pneumatic cylinder or a hydraulic cylinder.

6. The ship shaft locking device according to claim 1, characterized in that: The locking device (7) is a mechanical locking device.

7. The ship shaft locking device according to claim 6, characterized in that: The locking device (7) comprises a locking slot (72) provided on the active wedge (52), and a locking block (71) is provided on the lock shaft fixing seat (1). The locking block (71) can slide into the locking slot (72) by its own weight.

8. The ship shaft locking device according to claim 7, characterized in that: An unlocking handle (73) is provided on the locking block (71).

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