KR-20260066297-A - APPARATUS FOR ROTATING A TURRET WITH ELECTROMAGNETIC CLUTCH

KR20260066297AKR 20260066297 AKR20260066297 AKR 20260066297AKR-20260066297-A

Abstract

The present invention relates to a turret traverse device equipped with an electromagnetic clutch, wherein the electric motor, gearbox, rotation limiter, and manual operating device are manufactured as a single unit through an electromagnetic clutch based on an electric drive system applied to tanks of the fourth generation or later, and the functions of each device can be effectively controlled through the on/off of the clutch. The device comprises: a fixed bracket fixedly installed on the vehicle body; an electric motor fixedly installed on the fixed bracket and rotating a motor shaft; a gearbox fixedly installed on the fixed bracket, receiving rotational force from the motor shaft, increasing torque through a plurality of gear connections, and transmitting rotational force to an output shaft geared to a race ring of the turret to traverse the turret; an electromagnetic clutch in which a clutch drive shaft is interposed to connect the rotational force of the motor shaft to the gearbox, and a clutch driven shaft separated coaxially with the clutch drive shaft connects to or disconnects from the clutch drive shaft according to the application of power; a manual handle in which a manual handle shaft is geared to the clutch driven shaft and rotates the clutch driven shaft; and the It is made by including a rotation restraint means for restraining or releasing the rotation of a manual handle shaft.

Inventors

이현철
이상희
백진수
이재민
권순우

Assignees

에스지서보(주)

Dates

Publication Date: 20260512
Application Date: 20241104

Claims (5)

A fixing bracket fixedly installed on the vehicle body, and An electric motor that is fixedly installed on the above-mentioned fixed bracket and rotates the motor shaft, and A gearbox that is fixedly installed on the above-mentioned fixed bracket, receives rotational force from the above-mentioned motor shaft, increases torque through a plurality of gear connections, and transmits rotational force to an output shaft connected to the race ring of the turret to rotate the turret, and An electromagnetic clutch is provided, wherein a clutch drive shaft is interposed to connect the rotational force of the motor shaft to the gearbox, and a clutch driven shaft separated coaxially with the clutch drive shaft is connected to or disconnected from the clutch drive shaft depending on the application of power. A manual handle shaft that is gear-connected to the clutch driven shaft to rotate the clutch driven shaft, and A turret swivel device equipped with an electromagnetic clutch comprising a rotation restraint means for restraining or releasing the rotation of the above manual handle shaft.
In paragraph 2, The above rotational restraint means is, A turret swivel device equipped with an electromagnetic clutch, characterized by being a rotation restraint bolt installed to be retractable and retractable so as to press or engage the outer surface of the manual handle shaft, thereby restraining the rotation of the manual handle shaft when retracted and releasing the rotation of the manual handle shaft when retracted.
In paragraph 1, The above-mentioned electromagnetic clutch is, A magnetic coil inserted and fixed in a stator, and A rotor rotatably coupled to a stator in the direction in which the magnetic coil is installed, and to which the clutch drive shaft is axially coupled, A friction lining coupled to the rotor so as to be rotatable together with the rotor, and A flange spaced apart from the rotor and installed to rotate freely on the same axis, and to which the clutch driven shaft is axially coupled, A turret swivel device equipped with an electromagnetic clutch, characterized by including an armature disc coupled to the flange via a spring so as to face the magnetic coil, so as to be axially movable.
In paragraph 3, The above-mentioned electromagnetic clutch is, A clutch-on state in which, when power is applied to the magnetic coil and a magnetic field is formed, the armature disc is attracted toward the magnetic coil, and the clutch drive shaft and the clutch driven shaft are interconnected by the frictional force resulting from the contact between the armature disc and the friction lining; A turret slewing device equipped with an electromagnetic clutch, characterized in that when power to the magnetic coil is cut off, the armature disc is separated from the friction lining by the spring force of the spring, and the clutch driving shaft and the clutch driven shaft are mutually disconnected, resulting in a clutch-off state.
In paragraph 4, A turret rotation mode in which the above-mentioned electromagnetic clutch is in a clutch-off state, and the rotational force of the above-mentioned electric motor is connected to the gearbox via the clutch drive shaft through the motor shaft, and then rotates the output to rotate the turret, and A turret traverse restraint mode in which, when the above-mentioned electromagnetic clutch is in a clutch-on state and the rotation of the above-mentioned manual handle shaft is restrained by the above-mentioned rotation restraint means, the rotation of the clutch drive shaft connected to the above-mentioned clutch driven shaft is also restrained so that the rotational force of the above-mentioned electric motor is not connected to the above-mentioned gearbox, and A turret swivel device equipped with an electromagnetic clutch, characterized by including a manual swivel mode in which, when the electromagnetic clutch is in a clutch-on state and the rotation of the manual handle shaft is released by the rotation restraint means, the rotational force of the manual handle rotates the clutch drive shaft connected to the clutch driven shaft through the manual handle shaft, is connected to the gearbox, and then rotates the output shaft to swivel the turret.

Description

Apparatus for Rotating a Turret with an Electromagnetic Clutch The present invention relates to a turret swivel device equipped with an electromagnetic clutch for rotating a turret left and right, installed on a ground combat vehicle, particularly a K2 tank. While older generation tanks prior to the third generation, such as the K1 and K1A1 tanks, use hydraulic gun/turret drive systems, the K2 tank, a fourth-generation tank, is being developed by adopting an electric drive system with superior control characteristics. The gun/turret drive/power system is a device that has a dominant influence on the hit rate, which is the ultimate goal of a combat vehicle, and consists of a two-axis drive system for the main gun and turret. Since it performs the functions of driving the elevation/traverse of the main gun/turret and stabilizing the main gun against disturbances applied to the vehicle body during driving, thereby enabling firing while on the move, it requires rapid and accurate tracking performance for the target and robust stabilization performance that eliminates disturbances caused by firing and driving. Electric drive systems can address the safety vulnerabilities of conventional hydraulic drive systems regarding crew safety caused by oil leaks and fires, and offer excellent silent boundary characteristics due to low-noise operation. Furthermore, they enable superior drive control performance through high linearity and are convenient to maintain, making them an effective alternative in terms of incorporating the latest technology. As shown in FIGS. 1 and 2, the turret traverse device of the K2 is geared with the output shaft (11) of the traverse device (10) fixedly installed on the vehicle body (1) and the race ring (2a) of the turret (2), so that the turret (2) can rotate 360 degrees by rotating the turret (2) with the rotational force of the output shaft (11), and the gun barrel (3) of the turret (2) can move up and down within a driving range of -5 degrees to 20 degrees using an elevation device (not shown). This turret traverse device must convert from a hydraulic drive system to an electric drive system, and transmit the rotational force of the electric motor to the output shaft (11) to rotate the turret (2). At this time, sufficient torque must be transmitted between the motor shaft of the electric motor and the output shaft (11) through a gearbox, and a separate rotation limiting device is required to restrict and fix the rotation of the turret (2) when disturbances occur, such as during the movement of the vehicle body (1) or firing of the turret (2), and a separate manual operation device is required so that a crew member on board the vehicle body (1) can manually operate it in emergency situations such as a failure of the electric motor. If the above-mentioned electric motor, gearbox, rotation limiter, and manual operation device are to be installed separately inside the vehicle body (1), there are problems such as reduced space utilization and increased production costs due to increased labor costs resulting from the separate production and assembly of each. FIG. 1 is a perspective view illustrating a state in which a turret rotates relative to the chassis of a conventional tank, and FIG. 2 is a plan view illustrating the coupling relationship between the output shaft of the turret traverse device and the race ring of the turret when the turret is traversed relative to the vehicle body in the embodiment of FIG. 1. FIG. 3 is a perspective view illustrating an embodiment of a turret slewing device equipped with an electromagnetic clutch according to the present invention, and FIG. 4 is a perspective view illustrating the rotational transmission process in the embodiment of FIG. 3 when the electromagnetic clutch is in the clutch-on state and the turret is in traverse mode. FIG. 5 is a cross-sectional view illustrating the electromagnetic clutch in the turret traverse mode, which is an embodiment of FIG. 4, and the rotational transmission process between each rotation axis. FIG. 6 is a perspective view illustrating the rotational transmission process in the embodiment of FIG. 3 when the electromagnetic clutch is in a clutch-off state and the turret traverse restraint mode. FIG. 7 is a cross-sectional view illustrating the electromagnetic clutch in the turret rotation restraint mode, which is an embodiment of FIG. 6, and the rotational transmission process between each rotation axis. FIG. 8 is a perspective view illustrating the rotational transmission process in the embodiment of FIG. 3 when the electromagnetic clutch is in a clutch-off state and in manual turning mode. FIG. 9 is a cross-sectional view of the electromagnetic clutch in the case of the manual turning mode, which is an embodiment of FIG. 8, and a cross-sectional view illustrating the rotational transmission process between each rotation axis. Hereinafter, a preferred embodiment of a turret slewing device equipped with an electromagnet