阅读说明：本技术 一种枪械的双链轮驱动机构 (Double-chain wheel driving mechanism of firearm ) 是由 王朋飞 黄韬 黄绵通 周晗 阳嗣鸿 陈永富 杨志峰 叶吾 李岩 于 2020-07-14 设计创作，主要内容包括：本发明公开了一种枪械的双链轮驱动机构,包括电机驱动部件和链传动部件,电机驱动部件固定安装在机匣外侧,一端设有电机输出齿轮；链传动部件安装在机匣下方,包括链轮支架,链轮支架前、后安装有轴a和轴b,轴a和轴b分别安装有前链轮和后链轮,前链轮和后链轮上环绕有链条,链轮支架与前链轮、后链轮同轴分别安装有链轮驱动齿轮和从动轮,链轮驱动齿轮与电机输出齿轮啮合,链条的单链节上设有凸台轴,凸台轴上安装驱动滚轮；机匣内可滑动的安装有枪机,枪机上设有滚轮槽,与单链节上的驱动滚轮位置相对应,链传动部件通过链轮支架安装在机匣上时,驱动滚轮置于枪机的滚轮槽内；还包括射控器,与电机驱动部件连接,用于发送驱动指令。(The invention discloses a double-chain wheel driving mechanism of a firearm, which comprises a motor driving part and a chain transmission part, wherein the motor driving part is fixedly arranged on the outer side of a receiver, and one end of the motor driving part is provided with a motor output gear; the chain transmission component is arranged below the casing and comprises a chain wheel bracket, a shaft a and a shaft b are arranged in front of and behind the chain wheel bracket, a front chain wheel and a rear chain wheel are respectively arranged on the shaft a and the shaft b, chains are wound on the front chain wheel and the rear chain wheel, the chain wheel bracket, the front chain wheel and the rear chain wheel are coaxially and respectively provided with a chain wheel driving gear and a driven wheel, the chain wheel driving gear is meshed with an output gear of a motor, a boss shaft is arranged on a single chain section of each chain, and a driving roller is arranged on the; the gun is slidably arranged in the receiver, a roller groove is formed in the gun and corresponds to the position of a driving roller on the single chain section, and when the chain transmission component is arranged on the receiver through the chain wheel bracket, the driving roller is arranged in the roller groove of the gun; the device also comprises an emission controller which is connected with the motor driving part and used for sending a driving command.)

1. A double-chain wheel driving mechanism of a firearm is arranged on a receiver of the firearm, and is characterized in that: the motor driving part is fixedly arranged on the outer side of the casing, and one end of the motor driving part is provided with a motor output gear;

the chain transmission part is arranged below the machine box and comprises a chain wheel support, a shaft a and a shaft b are rotatably arranged in front of and behind the chain wheel support, a front chain wheel and a rear chain wheel are respectively arranged at one ends of the shaft a and the shaft b, which are positioned above the chain wheel support, a chain is wound on the front chain wheel and the rear chain wheel and can flexibly rotate, a chain wheel driving gear and a driven wheel are respectively coaxially arranged below the chain wheel support and the front chain wheel and the rear chain wheel, retaining rings are respectively arranged on the shaft a and the shaft b and axially limit the front chain wheel, the chain wheel driving gear, the rear chain wheel and the driven wheel, keys are respectively arranged between the front chain wheel, the chain wheel driving gear and the shaft a and between the rear chain wheel, the driven wheel and the shaft b to prevent relative rotation, the chain wheel driving gear is meshed with a motor output gear, power is transmitted through a motor driving part, and, the boss shaft is rotatably provided with a driving roller;

a gun is slidably mounted in the receiver through a guide rail, a roller groove is formed in the gun and corresponds to the position of a driving roller on the single chain link, and when the chain transmission component is mounted on the receiver through the chain wheel bracket, the driving roller is arranged in the roller groove of the gun;

the shooting controller is arranged outside the firearm, is connected with the motor driving part through a cable and is used for sending a driving instruction;

the double-chain wheel driving mechanism sends a driving instruction through the injection controller to drive the motor driving part to work, the motor output gear drives the chain wheel driving gear to rotate so as to drive the front chain wheel and the rear chain wheel to rotate, and the chain drives the driving roller to reciprocate back and forth to enable the gunlock to reciprocate back and forth to finish gunnery shooting.

2. The double sprocket drive mechanism for a firearm of claim 1, wherein: the motor drive part comprises a motor, a right-angle speed reducer and a motor base, wherein the motor is installed at one end of the right-angle speed reducer, an output shaft at the other end of the right-angle speed reducer is matched with a motor output gear in an up-down mode and is axially limited through a check ring, the motor output gear is arranged below the motor base, a gear shaft is further installed on the motor base, the gear of the gear shaft is arranged below the motor base and is meshed with the motor output gear, an encoder is installed on the gear shaft and is arranged above the motor base and used for recording the rotation data of the motor output gear in real time, and the motor drive part is fixedly installed with a casing through the motor.

3. A double sprocket drive mechanism for a firearm as defined in claim 2, wherein: the shooting controller is used for sending a driving starting and stopping instruction, controlling the starting and stopping of the firearm, analyzing data information sent back by the encoder, recording the projectile amount, controlling the radio frequency of the firearm and stopping shooting at a fixed point of the firearm.

4. A double sprocket drive mechanism for a firearm as defined in claim 2, wherein: a gear cover is arranged below the motor base and used for preventing dust and foreign matters from entering the motor base.

5. The double sprocket drive mechanism for a firearm of claim 1, wherein: the front chain wheel and the rear chain wheel are double-row chain wheels, and the chain is a double-row chain.

Technical Field

The invention relates to the technical field of firearm driving, in particular to a double-chain wheel driving mechanism of a firearm.

Background

At present, along with the change of war forms, all countries are engaged in vigorously developing unmanned equipment. As a light weight unmanned rig, the platform gun is an indispensable weapon. Compared with the traditional gun, the platform gun has the characteristics of high reliability, good shooting machine precision, automatic obstacle removal, automatic loading and the like, and the original piston driving mode cannot meet the requirement. The chain type driving part is used as an indispensable important part of the platform machine gun, and the reliability of the platform machine gun is directly influenced by the quality of a chain transmission part design principle.

At present, the common chain type cannon in China mostly adopts a rectangular four-chain-wheel structure, but the rectangular four-chain-wheel structure is not suitable for being used by a platform machine gun, and the chain type cannon has the following defects:

1. the radio frequency is low, the chain type driving route of the four chain wheels is rectangular, the transverse movement stroke is long under the same automatic machine stroke, and the radio frequency of the platform machine gun with the four chain wheel driving structure is low;

2. the four-chain wheel structure has long transverse stroke, so that the transverse size of the four-chain wheel structure is large, and further, the platform machine gun has large transverse size, a large number of used parts and heavy weight;

therefore, how to find a new chain driving mechanism, which can increase the radio frequency of the platform gun and reduce the weight of the platform gun, is a problem to be solved at present.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides the double-chain wheel driving mechanism of the firearm, which can improve the radio frequency of the platform machine gun, reduce the whole width of the platform machine gun, reduce the weight of the gun body and enable the platform to be more conveniently arranged.

The double-chain wheel driving mechanism of the firearm is arranged on a receiver of the firearm and comprises a motor driving part and a chain transmission part, wherein the motor driving part is fixedly arranged on the outer side of the receiver, and one end of the motor driving part is provided with a motor output gear; the chain transmission part is arranged below the machine box and comprises a chain wheel support, a shaft a and a shaft b are rotatably arranged in front of and behind the chain wheel support, a front chain wheel and a rear chain wheel are respectively arranged at one ends of the shaft a and the shaft b, which are positioned above the chain wheel support, a chain is wound on the front chain wheel and the rear chain wheel and can flexibly rotate, a chain wheel driving gear and a driven wheel are respectively coaxially arranged below the chain wheel support and the front chain wheel and the rear chain wheel, retaining rings are respectively arranged on the shaft a and the shaft b and axially limit the front chain wheel, the chain wheel driving gear, the rear chain wheel and the driven wheel, keys are respectively arranged between the front chain wheel, the chain wheel driving gear and the shaft a and between the rear chain wheel, the driven wheel and the shaft b to prevent relative rotation, the chain wheel driving gear is meshed with a motor output gear, power is transmitted through a motor driving part, and, the boss shaft is rotatably provided with a driving roller; a gun is slidably mounted in the receiver through a guide rail, a roller groove is formed in the gun and corresponds to the position of a driving roller on the single chain link, and when the chain transmission component is mounted on the receiver through the chain wheel bracket, the driving roller is arranged in the roller groove of the gun; the shooting controller is arranged outside the firearm, is connected with the motor driving part through a cable and is used for sending a driving instruction; the double-chain wheel driving mechanism sends a driving instruction through the injection controller to drive the motor driving part to work, the motor output gear drives the chain wheel driving gear to rotate so as to drive the front chain wheel and the rear chain wheel to rotate, and the chain drives the driving roller to reciprocate back and forth to enable the gunlock to reciprocate back and forth to finish gunnery shooting.

Further, motor drive part includes motor, right angle speed reducer and motor cabinet, the motor is installed in right angle speed reducer one end, and the output shaft of the right angle speed reducer other end cooperates motor output gear tightly and spacing through the retaining ring axial, motor output gear sets up in the motor cabinet below, still installs the gear shaft on the motor cabinet, the gear of gear shaft is located the motor cabinet below, with motor output gear meshing, install the encoder on the gear shaft, the encoder is located the motor cabinet top for real-time recording motor output gear's rotation data, motor drive part passes through motor cabinet and quick-witted casket fixed mounting.

Further, the firing controller is used for sending driving starting and stopping instructions, controlling starting and stopping of the firearm, analyzing data information sent back by the encoder, recording the projectile amount, controlling the radio frequency of the firearm and stopping firing of the firearm at fixed points.

Further, a gear cover is installed below the motor base and used for preventing dust and foreign matters from entering the motor base.

Furthermore, the front chain wheel and the rear chain wheel are double-row chain wheels, and the chain is a double-row chain.

The invention has the beneficial effects that:

1. the double-chain wheel driving mechanism can effectively reduce the time of chain transmission periodic motion and can greatly improve the radio frequency of the platform machine gun.

2. Compared with a rectangular four-chain wheel structure in the prior art, the double-chain wheel driving mechanism reduces the whole width of a chain transmission part, reduces the number of parts, and can effectively reduce the weight of the chain transmission part and the weight of a firearm.

3. The double-chain wheel driving mechanism provides power through the motor driving part to drive the chain transmission part to rotate, the whole chain transmission part can realize whole chain transmission circulation only through the front chain wheel and the rear chain wheel, further the back-and-forth reciprocating motion of the firearm is realized, the action circulation of bullet poking, bullet pushing, locking, firing, shell pulling, shell throwing and the like is completed, and the structure is simple and compact.

4. According to the driving mechanism, under the condition that the chain transmission part is not detached, the bolt face can be directly detached from the rear, so that the driving mechanism is convenient to maintain and is beneficial to improving the maintainability of equipment.

5. The double-chain wheel driving mechanism disclosed by the invention adopts a double-row chain structure, so that the stability of the chain transmission mechanism can be improved.

Drawings

FIG. 1 is a schematic structural view of the present invention (showing a portion of the case);

FIG. 2 is a schematic diagram of the meshing of the motor output gear with the sprocket drive gear and the gear shaft in the present invention;

FIG. 3 is a schematic perspective view of a motor driving part;

FIG. 4 is a front view of the chain drive component;

FIG. 5 is a top view of the chain drive component;

FIG. 6 is a cross-sectional view taken along line A-A of FIG. 5;

fig. 7 is a top view of the bolt.

In the drawings: 1-motor, 2-right-angle speed reducer, 3-encoder, 4-bolt, 5-receiver,

6-sprocket driving gear, 7-chain, 8-sprocket support, 9-guide rail, 10-driven wheel,

11-motor output gear, 12-gear shaft, 13-motor base, 14-gear cover, 15-driving roller,

16-front sprocket, 17-rear sprocket, 18-axis a, 19-axis b, 20-cam axis

401-roller groove.

Detailed Description

Embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

In the present embodiment, the shooting direction of the firearm is taken as the front end.

The double-chain wheel driving mechanism of the firearm, as shown in fig. 1-7, is installed on a receiver of the firearm, and is mainly applied to a platform firearm as a driving component, and comprises a motor driving component and a chain transmission component, the motor driving component is fixedly installed on the outer side of the receiver 5, one end of the motor driving component is provided with a motor output gear 11, the motor driving component comprises a motor 1, a right-angle reducer 2 and a motor base 13, the motor 1 is installed at one end of the right-angle reducer 2 and is connected to the motor base 13 through the right-angle reducer 2, the arrangement direction of the motor 1 is changed, and the output torque of the driving is also increased, an output shaft at the other end of the right-angle reducer 2 is in interference fit with the motor output gear 11 and is axially limited through a retainer ring, the motor output gear 11 is arranged below the motor base 13, a gear shaft 12 is also installed on the motor base 13, the encoder 3 is arranged on the gear shaft 12 and is positioned above the motor base 13, so that the rotation data of the motor output gear 11 can be recorded in real time, and the motor driving part is fixedly arranged with the casing 5 through the motor base 13;

the chain transmission component is arranged below the machine box 5 and comprises a chain wheel bracket 8 which is fixedly arranged with the machine box 5, a shaft a18 and a shaft b19 are rotatably arranged in front of and behind the chain wheel bracket 8, a front chain wheel 16 and a rear chain wheel 17 are respectively arranged at one end of the shaft a18 and one end of the shaft b19 which are positioned above the chain wheel bracket 8, a chain 7 is wound on the front chain wheel 16 and the rear chain wheel 17 and can flexibly rotate, a chain wheel driving gear 6 and a driven wheel 10 are respectively arranged below the chain wheel bracket 8 and coaxially arranged with the front chain wheel 16 and the rear chain wheel 17, check rings are respectively arranged on the shaft a18 and the shaft b19 and axially limit the front chain wheel 16, the chain wheel driving gear 6, the rear chain wheel 17 and the driven wheel 10, keys are respectively arranged between the front chain wheel 16, the chain wheel driving gear 6 and the shaft a18 and between the rear chain wheel 17, the driven wheel 10 and the shaft b19 to, the power is transmitted through the motor driving part, a boss shaft 20 is arranged on a single chain section of the chain 7, a driving roller 15 is rotatably arranged on the boss shaft 20, and the chain wheel driving gear 6 rotates to drive the front chain wheel 16, the rear chain wheel 17, the chain 7 and the driving roller 15 to move;

the receiver 5 is a carrier of the whole platform machine gun, the gun bolt 4 is slidably mounted in the receiver through a guide rail 9, the back-and-forth movement track of the gun bolt 4 is ensured, a roller groove 401 is formed in the gun bolt 4 and corresponds to the position of a driving roller 15 on the single chain link, and when the chain transmission component is mounted on the receiver 5 through a chain wheel support 8, the driving roller 15 is arranged in the roller groove 401 of the gun bolt;

the double-chain wheel driving mechanism further comprises an ejection controller (not shown in the figure), wherein the ejection controller is arranged outside the platform machine gun, is connected with the motor driving part through a cable and is used for sending driving starting and stopping instructions, controlling the starting and stopping of the platform machine gun, analyzing data information returned by the encoder, recording the projectile amount, controlling the radio frequency of the firearm and stopping the ejection of the firearm at a fixed point.

In the embodiment, as shown in fig. 3, in order to prevent dust and foreign matters from entering the motor base and affecting the meshing between the motor driving gear and the gear shaft, a gear cover 14 is further installed below the motor base 13.

As shown in fig. 1 and 4, in order to improve the running stability of the chain transmission component, the front chain wheel and the rear chain wheel in the embodiment adopt double-row chain wheels, and the chain adopts double-row chains.

The transmission process of the invention is as follows: the motor rotates clockwise, the right-angle reducer rotates clockwise, the chain wheel drives the gear to rotate anticlockwise, the front chain wheel and the rear chain wheel rotate anticlockwise, the chain rotates anticlockwise, the driving roller reciprocates back and forth, and the bolt reciprocates back and forth.

The driving process of the invention when used on a platform machine gun is as follows:

the shooting controller sends a shooting instruction of the platform machine gun, the motor starts to work to sequentially drive the right-angle speed reducer, the chain wheel driving gear and the gear shaft to rotate, the chain wheel driving gear drives the front chain wheel, the front chain wheel drives the chain and the rear chain wheel to rotate, the chain drives the driving roller to reciprocate back and forth, the driving roller drives the gun machine to reciprocate back and forth, and the gun machine reciprocates back and forth to drive other mechanisms on the platform machine gun to sequentially complete action cycles of bullet poking, bullet pushing, locking, firing, shell drawing, shell throwing and the like;

when the shooting controller sends a shooting stop instruction, the motor stops driving in advance according to the position information fed back by the encoder, so that the gunlock is ensured to stop at the fixed-point shooting stop position of the gunlock by means of inertia, wherein the gear shaft drives the encoder to rotate, and the position information is fed back to complete actions such as projectile counting, fixed-point shooting stop of the gunlock and the like.

The invention effectively solves the driving problem of the platform machine gun, is beneficial to improving the radio frequency and the maintainability of the platform machine gun, is suitable for driving various platform machine guns, and has good application prospect and economic benefit.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art; the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; these modifications and substitutions do not cause the essence of the corresponding technical solution to depart from the scope of the technical solution of the embodiments of the present invention, and are intended to be covered by the claims and the specification of the present invention.