Shafting disc lock shaft device directly propelled by ship low-speed propulsion motor

Abstract

The invention discloses a ship low-speed propulsion motor direct propulsion shafting barring lock shaft device which comprises a barring speed reducer fixed to a mounting base, a lock shaft mechanism and an electric control system used for controlling the barring speed reducer, the barring speed reducer is connected with the output end of a barring motor, and the mounting base is fixed to a ship body base. A barring gear ring is arranged on the ship shafting, and the barring gear ring is matched with the barring speed reducer; a shaft locking hole is formed in the large turning gear ring and is matched with the shaft locking mechanism; and when the shaft locking hole is matched with the shaft locking mechanism, the shaft locking mechanism locks the turning gear ring so as to lock the ship shaft system. The barring lock shaft device can effectively solve the barring lock shaft problem of a ship propelled by a multi-shaft low-speed motor with a shaft system not provided with a gearbox, the barring lock shaft device of the ship shaft system is integrated, two mutually independent devices of a traditional barring device and a bolt type lock shaft are replaced, and the occupied total resources are greatly reduced.

Description

Technical Field

[0001] The invention relates to a ship low-speed propulsion motor direct propulsion shaft system turning gear and locking shaft device, which is suitable for various ships directly propelled by low-speed propulsion motors and belongs to the technical field of ship design. Background Art

[0002] When a shaft system of a multi-shaft propulsion ship fails, the other shaft systems need to be used normally to ensure the vitality of the ship. In order to prevent the faulty shaft system from slow and free dragging and causing damage to the propulsion prime mover, intermediate bearing, tail bearing and other equipment, the faulty shaft needs to be locked, and the shaft system turning device is required during daily maintenance and repair. Different from the diesel engine direct propulsion shaft system, which can achieve the turning and locking functions through the diesel engine or gearbox, the low-speed propulsion motor direct propulsion shaft system does not have a gearbox, and the propulsion motor cannot achieve the 0.5r / min turning accuracy requirement through slow rotation conditions.

[0003] CN 216709606 U discloses a multifunctional intelligent ship axle brake device, which uses a hydraulic motor to drive a brake disc to perform axle disc rotation. When the axle is not rotated, the axle disc pinion needs to rotate with the brake disc, and the hydraulic oil of the hydraulic motor needs to be kept circulating, which increases the energy consumption of the equipment and easily causes equipment damage during long-term operation. The integral brake disc of the device is inconvenient to install and needs to be used in conjunction with equipment such as a sleeve-type hydraulic coupling, which increases the cost of the ship. The electrical control unit is not provided with monitoring functions such as a position switch and an operating status related to the propulsion shaft system start interlock, and there is a potential safety hazard to personnel and equipment caused by misoperation.

[0004] In addition, three documents, CN116812129A, CN117508544A, CN201516919U and CN214648965U, respectively provide three different shaft locking device structures.

[0005] But generally speaking, these diesel engine turning and shaft locking devices have either single functions, complex structures, or are inconvenient to install, and are not well suited for direct propulsion shaft systems with low-speed propulsion motors.

[0006] Therefore, technicians in this field are committed to developing a ship low-speed propulsion motor direct propulsion shaft system turning and locking device to achieve the turning and locking function of the low-speed propulsion motor direct propulsion shaft system. Summary of the invention

[0007] The technical problem to be solved by the present invention is to provide a ship low-speed motor direct propulsion shaft system turning and locking shaft device to achieve the function of low-speed turning and locking shaft of the ship low-speed propulsion motor direct propulsion shaft system.

[0008] In order to solve the above problems, the present invention provides a ship low-speed propulsion motor directly propels the shaft system turning and locking device, which includes a turning reducer fixed on a mounting base, a shaft locking mechanism and an electronic control system for controlling the turning reducer, the turning reducer is connected to the output end of the turning motor, the mounting base is fixed on the hull foundation, a turning ring gear is provided on the ship shaft system, and the turning ring gear cooperates with the turning reducer; a shaft locking hole is provided on the turning ring gear, and the shaft locking hole cooperates with the shaft locking mechanism; when the shaft locking hole cooperates with the shaft locking mechanism, the shaft locking mechanism locks the turning ring gear to lock the ship shaft system.

[0009] Preferably, the mounting base includes a bottom plate for connecting to the hull base, a vertical plate is connected to the bottom plate through a web plate, the vertical plate is provided with a turning reducer mounting hole for installing a turning reducer, a shaft locking mechanism mounting hole for installing a shaft locking mechanism, and an electronic control system bracket for fixing the electronic control system, and flanges are provided in the turning reducer mounting hole and the shaft locking mechanism mounting hole.

[0010] More preferably, the base plate is provided with mounting bolt holes; and the electric control system is mounted on the electric control system bracket by bolts.

[0011] Preferably, the shaft ring of the turning gear ring is provided with a fixed mounting bolt hole and a temporary mounting bolt hole for connecting with the shaft flange of the ship shaft system; the turning gear ring is composed of an upper half gear ring and a lower half gear ring connected by gear ring mounting bolts. The turning gear ring is first fixed to the shaft flange through a temporary mounting bolt hole, and then the fixed mounting bolt hole is hingedly mounted with the flange hole of the ship shaft system to ensure that the turning gear ring is concentrically arranged with the ship shaft system, and a plurality of shaft locking holes are evenly arranged on the turning gear ring.

[0012] More preferably, a positioning pin is provided between the upper half gear ring and the lower half gear ring.

[0013] Preferably, the turning gear reducer includes an input shaft connected to the turning gear motor, the input shaft bevel gear at the end of the input shaft cooperates with the output shaft bevel gear at one end of the output shaft, the other end of the output shaft is connected to the turning gear pinion through a spline, the turning gear pinion cooperates with the lead screw, one end of the lead screw is provided with a turning gear handwheel; the output shaft is supported by a pair of bearings. The speed ratio of the turning gear reducer bevel gear ensures that the speed of the turning gear ring gear is ≤0.5r / min when the motor is running. The turning gear reducer is provided with a lead screw mechanism, which can drive the lead screw mechanism by handwheel to make the turning gear pinion axially move so as to control the engagement and disengagement of the turning gear reducer and the turning gear ring gear pair. The lead screw mechanism is provided with a turning gear limit device and a turning gear limit switch, which can fix the gear pair when engaged and disengaged and send the turning gear pinion position information to the electronic control system for ship shaft system starting interlock. The handwheel drives the lead screw to control the extension and retraction of the lock shaft pin. A certain gap must be left between the lock shaft pin and the lock shaft hole on the large gear ring of the winch. The lead screw mechanism is provided with a lock shaft limit switch. After extending and retracting into place, the lock shaft pin position information is sent to the electronic control system for the ship shaft system starting interlock.

[0014] More preferably, the lead screw is provided with a turning limit switch and a turning limit device for mutual limitation.

[0015] Preferably, the winch motor includes an electric motor, and a manual crank is provided on the electric motor. Usually, it is not installed. When the winch motor drives the winch gear ring to rotate slowly through the winch reducer to winch the ship shaft system, the winch gear ring stops running when it approaches the shaft locking position. The manual crank is installed to make the motor rotate slowly, and the winch gear ring is fine-tuned to reach the shaft locking position. When the winch gear ring reaches the shaft locking position, the shaft locking mechanism locks the winch gear ring to lock the ship shaft system.

[0016] Preferably, the shaft locking mechanism comprises a shaft locking pin which is arranged in a shaft locking mechanism housing and has both ends exposed from the shaft locking mechanism housing, one end of the shaft locking pin cooperates with the shaft locking hole, and the other end is connected to the shaft locking handwheel.

[0017] Preferably, the electric control system includes a control box, an audible and visual alarm light, and a remote control handle. The control box and the remote control handle of the electric control system are installed on the electric control system bracket of the mounting base by bolts. When the turning gear reducer and the turning gear ring gear pair are in meshing state, the turning gear motor can be controlled to rotate forward and reverse, thereby realizing the forward and reverse turning of the ship shaft system. When the electric control system is in the turning gear state, it sends an operation alarm signal through the audible and visual alarm light. The electric control system receives the operation status of the turning gear motor, the position switch of the screw mechanism and the locking mechanism of the turning gear reducer, and sends the operation display of the ship shaft system turning gear locking device, the shaft system start interlock, the equipment comprehensive alarm and other signals to the ship shaft system control system.

[0018] The above device, disengagement, turning and locking states are as follows:

[0019] Disengaged state: the screw mechanism of the turning gear reducer drives the turning gear pinion to disengage from the turning gear large ring gear, the limit device restricts the axial movement of the turning gear pinion, and the turning gear large ring gear operates normally with the shaft system.

[0020] Winching state: the screw mechanism of the winching reducer drives the winching pinion to engage with the winching ring gear, the winching limit device limits the axial movement of the winching pinion, the electronic control system controls the winching motor to drive the winching ring gear to rotate slowly, and the winching screw mechanism limit switch outputs the ship shaft system operation interlock signal, the shaft system cannot run, ensuring the safety of personnel and equipment.

[0021] Locking shaft state: the large gear ring of the winch is turned to the locking shaft position, the locking shaft mechanism drives the locking shaft pin to enter the locking shaft hole, and the limit switch of the locking shaft screw mechanism outputs the ship shaft system operation interlocking signal, and the shaft system cannot run, ensuring the safety of personnel and equipment.

[0022] The ship's low-speed motor direct propulsion shaft system turning and locking device of the present invention can effectively solve the problem that the low-speed propulsion motor direct propulsion shaft system has no reduction gearbox, and the speed control accuracy is limited when the propulsion motor rotates slowly and cannot meet the use requirements of the shaft locking device; in addition, the present invention integrates the ship's shaft system turning and locking device into one, replacing the two independent devices of traditional turning and latch-type shaft locking, thereby greatly reducing the overall resource occupation. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic diagram of the structure of a ship low-speed propulsion motor direct propulsion shaft system turning and locking shaft device provided by the present invention;

[0024] Figure 2 A schematic diagram of the installation base;

[0025] Figure 3 This is the principle diagram of the turning reducer;

[0026] Figure 4 This is a structural diagram of the large gear ring of the turning machine;

[0027] Figure 5 is a schematic diagram of the shaft locking mechanism;

[0028] Figure 6 Schematic diagram of the electronic control system. DETAILED DESCRIPTION

[0029] In order to make the present invention more clearly understood, preferred embodiments are described in detail below with reference to the accompanying drawings.

[0030] Example

[0031] like Figure 1As shown, a ship low-speed motor direct propulsion shaft system turning and locking device provided by the present invention includes a mounting base 1, a turning motor 2, a turning reducer 3, a turning large gear ring 4, a shaft locking mechanism 5, and an electronic control system 6.

[0032] The turning motor 2 is connected to the turning reducer 3 through a flange, the turning reducer 3 and the shaft locking mechanism 5 are connected to the mounting base 1 through a flange, the mounting base 1 is fixedly mounted on the hull foundation by bolts, the turning large gear ring 4 is fixedly mounted on the ship shaft system through the shaft system flange bolts, the turning motor 2 drives the turning large gear ring 4 to slowly rotate through the turning reducer 3 to turn the ship shaft system, and when the turning large gear ring reaches the shaft locking position, the shaft locking mechanism 5 locks the turning large gear ring 4 to lock the ship shaft system.

[0033] like Figure 2 As shown, the bottom plate 11, the vertical plate 12, the web 13 and the electronic control system bracket 14 of the mounting base 1 are welded as a whole. The bottom plate 11 is provided with a plurality of mounting bolt holes 15, which are fixed to the hull base by bolts. The vertical plate 12 is provided with a turning reducer mounting hole 16 and a shaft locking mechanism mounting hole 17, which are respectively used to connect the turning reducer 3 and the shaft locking mechanism 5. The electronic control system 6 is mounted on the electronic control system bracket 14 by bolts.

[0034] like Figure 5 As shown, the turning motor 2 is connected to the turning reducer 3 through a flange. The motor 21 is provided with a manual crank 22, which is not installed at ordinary times. When the motor 21 drives the turning gear ring 4 to approach the shaft locking position, the motor 21 stops running. The manual crank 22 is installed to make the motor 21 rotate slowly, and the turning gear ring 4 is fine-tuned to reach the shaft locking position.

[0035] like Figure 3 As shown, one end of the input shaft 31 of the turning gear reducer 3 is connected to the output shaft of the motor 21, and the other end is connected to the input shaft bevel gear 32. The output shaft 33 is supported by two bearings 34, one end is connected to the bevel gear 35, and the other end is connected to the lead screw 36. The speed ratio of the input shaft bevel gear 32 and the output shaft bevel gear 35 should ensure that the rotation speed of the turning gear ring 5 is ≤0.5r / min when the turning motor 2 is running. The lead screw 36 controls the axial movement of the turning gear pinion 38 through the turning handwheel 37 to control the engagement and disengagement of the turning gear pinion 38 with the turning gear ring 4. The turning gear pinion 38 is connected to the output shaft 33 through a spline 39 to transmit the output torque of the turning motor 2 to the turning gear pinion 38. The lead screw 36 is provided with a turning limit device 310 and two turning limit switches 311. When the turning gear pinion 38 is engaged and disengaged, it can fix the gear pair and send position information to the electronic control system 6 for the ship shaft system starting interlock.

[0036] like Figure 4As shown, the turning gear ring 4 is divided into an upper half gear ring 41 and a lower half gear ring 42. The upper half gear ring 41 and the lower half gear ring 42 are symmetrical about the axis center, and a positioning pin 43 and a gear ring mounting bolt 44 are combined into an integral structure. When installing the turning gear ring 4, it is first fixed to the shaft system flange through a number of temporary mounting bolt holes 45, and then a number of fixed mounting bolt holes 46 are hingedly installed with the flange holes of the ship shaft system to ensure that the turning gear ring 4 is concentrically arranged with the ship shaft system. A number of shaft locking holes 47 are evenly arranged on the turning gear ring 4.

[0037] like Figure 5 As shown, the housing 51 of the shaft locking mechanism 5 is connected to the shaft locking mechanism mounting hole 17 of the mounting base 1 through a flange, and the shaft locking handwheel 52 drives the screw mechanism to control the extension and retraction of the shaft locking pin 53. A certain gap must be left between the shaft locking pin 53 and the shaft locking hole 47 on the large gear ring 4 of the turning gear. The screw mechanism is provided with a shaft locking limit device and a limit switch. After the shaft locking pin 53 is extended and retracted into position, it is fixed and sends position information to the electronic control system 6 for the ship shaft system starting interlock.

[0038] like Figure 6 As shown, the control box 61 and the remote control handle 62 of the electric control system 6 are fixedly mounted on the electric control system bracket 14 of the mounting base 1 by bolts. When the gear pair of the turning reducer 3 and the turning large gear ring 4 is in meshing state, the turning motor 2 can be controlled to rotate forward and reverse, thereby realizing the forward and reverse turning of the ship shaft system. When the electric control system is in the turning state, an operation alarm signal is sent out through the sound and light alarm light 63. The electric control system 6 receives the operation state of the turning motor 2, the position state of the lead screw of the turning reducer 3 and the shaft locking mechanism 5, and sends signals such as the operation display of the ship shaft system turning shaft locking device, the shaft system start-up interlocking, and the equipment comprehensive alarm to the ship shaft system control system.

Claims

1. A ship low-speed propulsion motor direct propulsion shaft system turning and locking device, characterized in that: The invention comprises a turning gear reducer (3) fixed on a mounting base (1), a shaft locking mechanism (5) and an electric control system (6) for controlling the turning gear reducer (3); the turning gear reducer (3) is connected to the output end of a turning gear motor (2); the mounting base (1) is fixed on a ship hull base; a turning gear ring (4) is provided on the ship shaft system; the turning gear ring (4) matches with the turning gear reducer (3); a shaft locking hole (47) is provided on the turning gear ring (4); the shaft locking hole (47) matches with the shaft locking mechanism (5); when the shaft locking hole (47) matches with the shaft locking mechanism (5), the shaft locking mechanism (5) locks the turning gear ring (4) and thus locks the ship shaft system.

2. The ship low-speed propulsion motor direct propulsion shaft system turning and locking device according to claim 1, characterized in that: The mounting base (1) comprises a bottom plate (11) for connecting to a hull base, a vertical plate (12) being connected to the bottom plate (11) via a web plate (13), the vertical plate (12) being provided with a turning reducer mounting hole (16) for mounting a turning reducer (3), a shaft locking mechanism mounting hole (17) for mounting a shaft locking mechanism (5), and an electric control system bracket (14) for fixing an electric control system (6), and flanges are provided in the turning reducer mounting hole (16) and the shaft locking mechanism mounting hole (17).

3. The ship low-speed propulsion motor direct propulsion shaft system turning and locking device as claimed in claim 2, characterized in that: The bottom plate (11) is provided with mounting bolt holes (15); the electric control system (6) is mounted on the electric control system bracket (14) by means of bolts.

4. The ship low-speed propulsion motor direct propulsion shaft system turning and locking shaft device according to claim 1, characterized in that: The shaft ring of the large gear ring (4) of the turning gear is provided with a fixed mounting bolt hole (46) and a temporary mounting bolt hole (45) for connecting with the shaft flange of the ship shaft system; the large gear ring (4) of the turning gear is composed of an upper half gear ring (41) and a lower half gear ring (42) connected by gear ring mounting bolts (44).

5. The ship low-speed propulsion motor direct propulsion shaft system turning and locking device as claimed in claim 4, characterized in that: A positioning pin (43) is provided between the upper half gear ring (41) and the lower half gear ring (42).

6. The ship low-speed propulsion motor direct propulsion shaft system turning and locking device according to claim 1, characterized in that: The turning gear reducer (3) comprises an input shaft (31) connected to the turning gear motor (2); an input shaft umbrella output wheel (32) at the end of the input shaft (31) matches with an output shaft umbrella output wheel (35) at one end of an output shaft (33); the other end of the output shaft (33) is connected to a turning gear pinion (38) through a spline (39); the turning gear pinion (38) matches with a lead screw (36); one end of the lead screw (36) is provided with a turning gear hand wheel (37); and the output shaft (33) is supported by a pair of bearings (34).

7. The ship low-speed propulsion motor direct propulsion shaft system turning and locking device as claimed in claim 6, characterized in that: The lead screw (36) is provided with a turning limit switch (311) and a turning limit device (310) for mutual limiting.

8. The ship low-speed propulsion motor direct propulsion shaft system turning and locking shaft device according to claim 1, characterized in that: The turning motor (2) comprises an electric motor (21), and a manual crank (22) is provided on the electric motor (21).

9. The ship low-speed propulsion motor direct propulsion shaft system turning and locking shaft device according to claim 1, characterized in that: The shaft locking mechanism (5) comprises a shaft locking pin (53) which is arranged in a shaft locking mechanism housing (51) and has two ends exposed from the shaft locking mechanism housing (51). One end of the shaft locking pin (53) is matched with the shaft locking hole (47), and the other end is connected to the shaft locking hand wheel (52).

10. The ship low-speed propulsion motor direct propulsion shaft system turning and locking shaft device according to claim 1, characterized in that: The electric control system (6) comprises a control box (61), an audible and visual alarm light (63), and a remote control handle.

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