A variable pitch auger feeding device that can be used for a 360-degree rotating chassis

Abstract

The present invention discloses a variable pitch auger feeding device that can be used for a 360-degree rotating chassis, including a dial shaft system and a variable pitch auger mechanism, the dial shaft system is arranged below the variable pitch auger mechanism, the dial shaft system includes a dial, a first motor, a turntable bearing, a bottom plate and a transmission gear, the dial drives the projectile to enter the variable pitch auger mechanism for spiral feeding, the variable pitch auger mechanism includes a variable pitch auger, a second motor, a support column and a protective cover, the second motor is connected to the support column to drive the variable pitch auger to rotate. Compared with the existing pipeline mechanism for conveying projectiles, the present invention occupies less space, has a low jam rate, and has stable transmission, and has high practical value.

Description

Technical Field

[0001] The invention relates to the technical field of ammunition feeding devices, and in particular to a variable pitch auger ammunition feeding device which can be used for a 360-degree rotating chassis. Background Art

[0002] A robot that needs to launch projectiles often needs a larger magazine and a gimbal for launching. If the gimbal is added to the magazine, the mass distribution of the gimbal will slowly change as the number of projectiles decreases, causing control difficulties. Although this problem can be improved by sending the projectiles into the gimbal from below the gimbal, it is difficult for the chassis to rotate 360 ​​degrees. Even if it can rotate, the robot's volume and weight will be seriously affected due to the large size of the entire bullet-pulling mechanism, reducing the robot's maneuverability. As a stable mode of transportation, the auger has certain application value in production and life. The present invention combines a variable pitch three-dimensional Archimedean spiral with the form of the auger, and innovatively proposes a variable pitch auger feeding device that can be used for a 360-degree rotating chassis. It has a low jam rate, stable transmission, and small space occupation, and has high practical value. Summary of the invention

[0003] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a variable pitch auger feeding device that can be used for a 360-degree rotating chassis, which can smoothly transmit the projectile to rise vertically from the outlet.

[0004] The technical solution of the present invention is: a variable pitch auger feeding device that can be used for a 360-degree rotating chassis, including a dial shaft system and a variable pitch auger mechanism, the dial shaft system is arranged below the variable pitch auger mechanism, the dial shaft system includes a dial, a first motor, a turntable bearing, a bottom plate and a transmission gear, the dial drives the projectile to enter the variable pitch auger mechanism for spiral feeding, the variable pitch auger mechanism includes a variable pitch auger, a second motor, a support column and a protective cover, the second motor is connected to the support column to drive the variable pitch auger to rotate. Among them, the dial is driven by the motor and the transmission gear to drive the projectile into the variable pitch auger mechanism, and the variable pitch auger mechanism ensures that the projectile can rise along the variable pitch auger.

[0005] The support column is connected with the variable pitch auger and the protective cover, wherein the support column has a protruding structure for supporting the variable pitch auger and the protective cover.

[0006] The support column is a hollow structure. The hollow structure of the support column allows the wires of the conductive slip ring to pass through it to achieve control of the external pan / tilt. The bottom of the support column has a connection hole, which can be connected to the second motor driving the bottom.

[0007] The variable pitch auger is an arc groove that scans along the variable pitch Archimedean curve, with the pitch decreasing from bottom to top and moving closer to the center. The variable pitch auger has a larger pitch at the bottom, which is convenient for the projectile to enter, and gradually narrows and moves closer to the center during the rise, and finally the projectile passes through the center of the shaft system.

[0008] The inner wall of the protective cover contacts the outer edge of the variable pitch auger, the protective cover guides the projectile to rise along the variable pitch auger, and a notch is provided at the bottom of the protective cover, wherein the notch can prevent the projectile from getting stuck when it falls.

[0009] The protective cover is provided with a flange screw-type interface and a mortise and tenon joint-type interface for connecting with an external pan-tilt head, so as to facilitate the connection between the protective cover and different types of external pan-tilt heads.

[0010] The first motor is fixed on the bottom plate, the transmission gear includes a large gear and a small gear, the first motor drives the small gear, the large gear meshes with the small gear, and has a certain reduction ratio.

[0011] The dial is connected to the large gear through an aluminum column, the dial is connected to the inner ring of the turntable bearing through an aluminum column, and the outer ring of the turntable bearing is connected to the bottom plate. The large gear has a hole in the center, and the hole size is just enough to ensure that the aluminum column connecting the inner ring of the turntable bearing and the dial will not interfere with the large gear when rotating, ensuring that the device will not jam when playing.

[0012] The center of the dial is provided with an opening for passing the support column, and the inner circle of the dial is provided with a chamfer. The dial is divided into six grids, and the projectiles can be fed along the spiral of the auger by directly applying force to the projectiles and the mutual squeezing force between the projectiles. The opening is provided to avoid interference between the support column and the second motor below, and the chamfer is used to prevent the projectiles from rolling to the center and causing jamming.

[0013] The entire device is installed at the rotation center of the 360-degree rotating chassis, which allows the projectile to rise vertically from the outlet without rotating. Therefore, while the chassis rotates 360 degrees, the external gimbal can be driven by the second motor to maintain a uniform direction and the projectile can be transmitted to the external gimbal.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The variable pitch auger feeding device which can be used for a 360-degree rotating chassis occupies a small space, has a low jamming rate and a smooth transmission. Compared with the traditional bullet feeding mechanism, the present invention has a symmetrical structure and saves space, transmits projectiles stably, and has a high application value. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of a variable pitch auger feeding device that can be used for a 360-degree rotating chassis.

[0017] Figure 2 This is a left view of a variable pitch auger feeding device that can be used for a 360-degree rotating chassis.

[0018] Figure 3 The diagram is a structural diagram of a variable pitch auger feeding device which can be used for a 360-degree rotating chassis without the protective cover.

[0019] Figure 4 It is a structural schematic diagram of the dial shaft system.

[0020] Figure 5 It is a structural schematic diagram of the variable pitch auger mechanism.

[0021] As shown in the figure, 1 is a base plate, 2 is a first motor, 3 is a second motor, 4 is an aluminum column, 5 is a turntable bearing, 6 is a small gear, 7 is a large gear, 8 is a protective cover, 9 is a variable pitch auger, 10 is a support column, and 11 is a dial. DETAILED DESCRIPTION

[0022] The present invention will be further described in detail below in conjunction with examples, but the embodiments of the present invention are not limited thereto.

[0023] Example

[0024] This embodiment is a variable pitch auger feeding device that can be used for a 360-degree rotating chassis. Figure 1-5 As shown, it includes a dial shaft system and a variable pitch auger mechanism. The dial shaft system is arranged below the variable pitch auger mechanism. The dial shaft system includes a dial 11, a first motor 2, a turntable bearing 5, a bottom plate 1 and a transmission gear. The dial drives the projectile to enter the variable pitch auger mechanism for spiral feeding. The variable pitch auger mechanism includes a variable pitch auger 9, a second motor 3, a support column 10 and a protective cover 8. The second motor is connected to the support column to drive the variable pitch auger to rotate. Among them, the dial is driven by the motor and the transmission gear to drive the projectile into the variable pitch auger mechanism. The variable pitch auger mechanism ensures that the projectile can rise along the variable pitch auger.

[0025] The support column is connected with the variable pitch auger and the protective cover, and the support column and the variable pitch auger are connected by screws. The support column has a protruding structure for supporting the variable pitch auger and the protective cover.

[0026] The support column is a hollow structure. The hollow structure of the support column allows the wires of the conductive slip ring to pass through it, making it easy to control the external PTZ in the chassis embedded system. The bottom of the support column has a connection hole, which can be connected to the second motor driving the bottom.

[0027] The variable pitch auger is an arc groove that scans along the variable pitch Archimedean curve, with the pitch decreasing from bottom to top and moving closer to the center. The variable pitch auger has a larger pitch at the bottom, which is convenient for the projectile to enter, and gradually narrows and moves closer to the center during the rise, and finally the projectile passes through the center of the shaft system.

[0028] The inner wall of the protective cover contacts the outer edge of the variable pitch auger, and the protective cover and the variable pitch auger are directly matched through the slot to ensure that the two can rotate together without relative displacement, and the top of the variable pitch auger has a plane that matches the protective cover, which can be used to support the protective cover, and the protective cover guides the projectile to rise along the variable pitch auger, and the bottom of the protective cover is provided with a notch. The notch can prevent the projectile from getting stuck when it falls.

[0029] The protective cover is provided with a flange screw-type interface and a mortise and tenon joint-type interface for connecting with an external pan-tilt head, so as to facilitate the connection between the protective cover and different types of external pan-tilt heads.

[0030] The first motor is fixed on the base plate, and the transmission gear includes a large gear 7 and a small gear 6. The first motor is connected through a coupling and drives the small gear. The large gear is meshed with the small gear. The large gear and the small gear are directly meshed in a standard manner to transmit power, and the designed transmission ratio is 3:1, which can provide a larger torque for the dial.

[0031] The dial is connected to the large gear through an aluminum column 4, the dial is connected to the inner ring of the turntable bearing through an aluminum column, and the outer ring of the turntable bearing is connected to the bottom plate, which can ensure that the dial does not rotate with the rotation of the bottom plate, and the speed and frequency of the bullet removal can be controlled. Among them, the center of the large gear is opened, and the aperture size is just enough to ensure that the aluminum column connecting the inner ring of the turntable bearing and the dial will not interfere with the large gear when rotating, ensuring that the device will not jam when removing bullets.

[0032] The center of the dial is provided with an opening for passing the support column, and the inner circle of the dial is provided with a chamfer. The dial is divided into six grids, and the projectiles can be fed along the spiral of the auger by directly applying force to the projectiles and the mutual squeezing force between the projectiles. The opening is provided to avoid interference between the support column and the second motor below, and the chamfer is used to prevent the projectiles from rolling to the center and causing jamming.

[0033] The entire device is installed at the rotation center of the 360-degree rotating chassis, which allows the projectile to rise vertically from the outlet without rotating. Therefore, while the chassis rotates 360 degrees, the external gimbal can be driven by the second motor to maintain a uniform direction and the projectile can be transmitted to the external gimbal.

[0034] The above-mentioned variable pitch auger feeding device that can be used for a 360-degree rotating chassis is used in the following manner: after power-on, the variable pitch auger feeding device that can be used for a 360-degree rotating chassis can directly move with the 360-degree rotating chassis. By controlling the rotation of the first motor, the dial can be controlled to rotate, so that the projectile rises along the variable pitch auger spiral and rolls out from the interface with the external pan / tilt. If the chassis performs a 360-degree rotation movement, the second motor rotates at the same angular velocity and angular acceleration, and the variable pitch auger mechanism as a whole maintains a relative position rotation with the chassis, while the external pan / tilt connected to the variable pitch auger protective cover maintains the orientation unchanged, which is convenient for the operator to operate. At the same time, the first motor that controls the dial rotates slowly, so that the dial and the variable pitch auger do not rotate relative to each other directly, preventing the projectile from rolling into the external pan / tilt launch pipeline uncontrolled. If the projectile is to be launched, the first motor superimposes the speed on the previously described speed so that the projectile can rise.

[0035] As described above, the present invention can be better implemented. The above embodiments are only preferred embodiments of the present invention and are not intended to limit the scope of implementation of the present invention; that is, all equivalent changes and modifications made according to the content of the present invention are covered by the scope of protection required by the claims of the present invention.

Claims

1. A variable pitch auger feeding device that can be used for a 360-degree rotating chassis, characterized in that: It includes a dial shaft system and a variable pitch auger mechanism, the dial shaft system is arranged below the variable pitch auger mechanism, the dial shaft system includes a dial, a first motor, a turntable bearing, a bottom plate and a transmission gear, the dial drives the projectile to enter the variable pitch auger mechanism for spiral feeding, the variable pitch auger mechanism includes a variable pitch auger, a second motor, a support column and a protective cover, and the second motor is connected to the support column to drive the variable pitch auger to rotate; The variable pitch auger is an arc-shaped groove that scans along the variable pitch Archimedean curve, and the pitch decreases from bottom to top and moves closer to the center; The support column is connected to the variable pitch auger and the protective cover respectively; the second motor is connected to the support column to drive the variable pitch auger to rotate; the support column and the variable pitch auger are connected by screws, and the support column has a protruding structure for supporting the variable pitch auger and the protective cover; The first motor is fixed on the bottom plate, the transmission gear includes a large gear and a small gear, the first motor drives the small gear, and the large gear meshes with the small gear; The dial is connected to the large gear through an aluminum column, the dial is connected to the inner ring of the turntable bearing through an aluminum column, and the outer ring of the turntable bearing is connected to the bottom plate; The entire device is installed at the rotation center of the 360-degree rotating chassis, which allows the projectile to rise vertically from the outlet without rotating. Therefore, while the chassis rotates 360 degrees, the external gimbal can be driven by the second motor to maintain a uniform direction and the projectile can be transmitted to the external gimbal.

2. According to claim 1, a variable pitch auger feeding device that can be used for a 360-degree rotating chassis, characterized in that: The supporting column is a hollow structure.

3. According to claim 1, a variable pitch auger feeding device that can be used for a 360-degree rotating chassis is characterized in that: The inner wall of the protective cover contacts the outer edge of the variable pitch auger, the protective cover guides the projectile to rise along the variable pitch auger, and a notch is arranged at the bottom of the protective cover.

4. According to claim 1, a variable pitch auger feeding device that can be used for a 360-degree rotating chassis is characterized in that: The protective cover is provided with a flange screw-type interface and a mortise and tenon joint-type interface for connecting with an external pan / tilt head.

5. The variable pitch auger feeding device for a 360-degree rotating chassis according to claim 1, characterized in that: An opening for passing the supporting column is arranged at the center of the dial, and a chamfer is arranged on the inner circle of the dial.

Images