JP4034905B2 - Cannon ammunition supply mechanism - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an ammunition supply mechanism for a cannon, and in particular, when passing ammunition from a conveyor chain sprocket of a continuously rotating ammunition magazine to a star wheel that rotates intermittently, the idler sprocket shaft is provided with a degree of freedom due to frictional coupling. The present invention relates to a novel improvement for reducing the load on the motor on the ammunition magazine side by passing ammunition through the nail.
[0002]
[Prior art]
As a conventional ammunition supply mechanism for this type of cannon, there can be mentioned the configuration of Japanese Patent Laid-Open No. 2-133799 shown in FIG.
That is, what is indicated by reference numeral 1 in FIG. 5 is an ammunition magazine having a large number of ammunition 2. Is delivered to the star wheel 7 provided in the ammunition cylinder supply device 6 and fired by the firearm 5.
[0003]
[Problems to be solved by the invention]
Since the conventional ammunition supply mechanism of the cannon has been configured as described above, the following problems existed.
That is, since the conveyor chain sprocket of the ammunition magazine is continuously driven by a motor, if ammunition is delivered to an intermittently driven star wheel, a large force is applied to the continuously rotating conveyor chain sprocket at the same time as the motor is delivered. When a large force is applied and the star wheel changes to continuous rotation again, a large impact is transmitted to the motor, so it is necessary to take measures such as intentionally providing a gap between the ammunition.
[0004]
The present invention has been made to solve the above-described problems, and in particular, when passing ammunition from a conveyor chain sprocket of an ammunition magazine that rotates continuously to a starwheel that rotates intermittently, the idler sprocket shaft has a degree of freedom. It is an object of the present invention to provide an ammunition supply mechanism for a cannon that smoothes the load of a motor on the ammunition magazine side by passing ammunition through a claw provided.
[0005]
[Means for Solving the Problems]
The ammunition supply mechanism of a cannon according to the present invention is an ammunition supply mechanism of a cannon that is configured to feed ammunition fed from a conveyor chain sprocket of an ammunition magazine having a large number of ammunition into a recess of a star wheel that intermittently rotates a firearm An idler sprocket shaft having a continuously rotating idler sprocket provided between the star wheel and the conveyor chain sprocket, and a plurality of claws connected to the idler sprocket via a spring and rotating together with the idler sprocket, The claw is configured to have a degree of freedom by frictional coupling with the idler sprocket shaft .
[0006]
DETAILED DESCRIPTION OF THE INVENTION
A preferred embodiment of an ammunition supply mechanism for a cannon according to the present invention will be described below with reference to the drawings. In addition, the same code | symbol is attached | subjected and demonstrated to a part the same as that of a prior art example, or an equivalent part.
FIG. 1 shows an outline of the configuration of the present invention. A conveyor chain sprocket 4 of an ammunition magazine 1 is continuously driven by a motor 1A of a drive unit 10, and an idler sprocket 20 provided adjacent to the conveyor chain sprocket 4 and The idler sprocket shaft 21 is also rotated at the same time.
[0007]
The star wheel 7 provided adjacent to the idler sprocket 20 and constituting the firearm 5 is intermittently driven by the drive unit 10 via the intermittent mechanism 22, and this star wheel 7 is connected to a rotating chamber 24 connected to the gun barrel 23. Has been. The rotating chamber 24 is connected to a cam drum 26 via a runner 25. The configuration in FIG. 1 is the same as the conventional configuration in FIG. 5 except for the idler sprocket 20 and the idler sprocket shaft 21.
[0008]
The star wheel 7, the idler sprocket 20 and the conveyor chain sprocket 4 described above are configured to rotate in directions indicated by arrows A, B and C in FIG. 2, and a plurality of the idler sprocket shafts 21 are provided. The claws 30 are respectively connected to the idler sprocket 20 by springs 31 and have a degree of freedom by frictional coupling with the idler sprocket shaft 21. As shown in FIG. 4, the idler sprocket shaft 21 is continuously rotating, whereas the star wheel 7 is intermittently driven.
[0009]
Next, the operation will be described. First, the ammunition 2 conveyed by the recess 4a of the conveyor chain sprocket 4 of the ammunition magazine 1 is received by the recess 30a of the claw 30 that rotates together with the idler sprocket 20 via the spring 31, and is rotated and conveyed. 7a. In this case, since the star wheel 7 is intermittently driven, the rotation of the claw 30 is stopped, and the idler sprocket 20 is rotated by the rotation of the idler sprocket shaft 21, so that the spring 31 is compressed.
[0010]
When the ammunition 2 is removed from the star wheel 7 and transferred to the firearm 5 under the above-described state, the pawl 30 returns to the original position by the restoring force of the spring 31, and the idler sprocket 20 and the idler sprocket shaft 21 are frictionally coupled. Rotate with.
When the above-described state is disclosed in units of msec, as shown in FIG. 3, the ammunition 2 is conveyed from the claw 30 of the idler sprocket 20 to the recess 7a of the star wheel 7 between 25 msec and 100 msec.
[0011]
【The invention's effect】
Since the ammunition supply mechanism of the cannon according to the present invention is configured as described above, the following effects can be obtained.
In other words, the ammunition sent by the conveyor chain sprocket that rotates continuously is transferred intermittently to the star wheel that has the freedom of frictional coupling with the idler sprocket shaft and is intermittently driven by claws connected via a spring. The stop motion of the star wheel can be applied to the claw, the claw can be quickly returned to its original position again by the spring, the motor can continue to rotate continuously, and the motor load can be smoothed This can greatly extend the life of the motor.
[Brief description of the drawings]
FIG. 1 is a schematic configuration diagram showing an ammunition supply mechanism of a cannon according to the present invention.
FIG. 2 is an enlarged view showing a main part of FIG. 1;
FIG. 3 is an operation explanatory diagram of the present invention.
FIG. 4 is a characteristic diagram showing movements of an idler sprocket shaft and a star wheel in the present invention.
FIG. 5 is a block diagram showing a conventional ammunition supply mechanism of a cannon.
[Explanation of symbols]
1 Ammo Magazine 2 Ammo 4 Conveyor Chain Sprocket 5 Firearm 20 Idler Sprocket 21 Idler Sprocket Shaft 30 Claw 31 Spring

Claims (1)

The ammunition (2) fed from the conveyor chain sprocket (4) of the ammunition magazine (1) having a large number of ammunition (2) is fed into the recess (7a) of the star wheel (7) that rotates intermittently in the firearm (5). In the ammunition supply mechanism of a cannon as described above, an idler sprocket shaft (21) having an idler sprocket (20) continuously provided between the star wheel (7) and a conveyor chain sprocket (4), and the idler A plurality of claws (30) connected to the sprocket (20) via a spring (31) and rotating together with the idler sprocket (20), and each claw (30 ) with respect to the idler sprocket shaft (21) An ammunition supply mechanism for a cannon, characterized by having a degree of freedom by frictional coupling .

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