Drum tumbler dull polish machine

Abstract

The utility model discloses a kind of drum type insensitive gloss machine, it is related to explosive manufacturing field, and the purpose is to realize the automation of propellant insensitive gloss process, unmanned, improve the security of insensitive gloss process.The technical scheme adopted by the utility model is: drum type insensitive gloss machine, including rack, and the shaft, speed reducer, servo motor and drum installed on rack, the shaft is installed on rack by bearing seat, the one end of shaft is connected with servo motor by speed reducer, the outer periphery of the other end of shaft is equipped with slip ring and is fixedly connected with drum, the side of the cylinder of the corresponding drum is equipped with inlet and outlet, and machine cover is rotatably installed on the side of inlet and outlet, and machine cover can be opened and closed inlet and outlet by rotating along the axis of machine cover shaft;One bottom surface of the cylinder of the corresponding drum is equipped with mounting seat, and air cylinder or hydraulic cylinder with telescopic rod is rotatably connected to mounting seat, and telescopic rod can drive machine cover to rotate around machine cover shaft.The utility model is used to carry out insensitive gloss to propellant.

Description

Technical Field

[0001] This utility model relates to the field of explosives manufacturing, and in particular to an explosives processing device, specifically a device for dulling the gloss of propellants. Background Technology

[0002] In the production of propellants, desensitization and glossing processes are indispensable. The desensitization process involves infiltrating desensitizing agents into the capillaries on the surface of the propellant, causing the surface of the propellant to burn slowly. This improves the combustion performance of the propellant, increases the charge, and raises the initial velocity, thus meeting the requirements of weapon ballistic performance. The glossing process uses graphite to eliminate static electricity on the surface of the propellant, aiming to increase the pseudo-density and dispersion of the propellant, improve the packing density, and facilitate mechanized loading.

[0003] The equipment used in the industry for dulling and polishing mainly includes rotary pre-polishing machines and multi-cone polishing machines. These machines all require manual operation for dangerous tasks such as feeding and unloading materials and opening and closing the machine cover, making it impossible to completely isolate workers from the machine. The work site carries safety risks such as gunpowder explosions, mechanical injuries, and other injuries. In addition, the flammable and explosive properties of the propellant itself, the fact that some propellants are in a high-temperature and moving state, and the presence of dust and solvents in the surrounding environment exacerbate the safety risks for workers. Utility Model Content

[0004] This invention provides a rotary drum-type desensitization and glossing machine, the purpose of which is to automate and unmanned the desensitization and glossing process of propellants, reduce the number of on-site workers, and improve the safety of the desensitization and glossing process.

[0005] The technical solution adopted in this utility model is: a rotary drum type dulling and polishing machine, including a frame, and a rotating shaft, a reducer, a servo motor, and a rotating drum mounted on the frame. The rotating shaft is mounted on the frame through at least two bearing seats. One end of the rotating shaft is connected to the output shaft of the servo motor through the reducer. The other end of the rotating shaft has a slip ring on its outer circumference and is fixedly connected to the rotating drum. The rotating drum is cylindrical in shape. The axis of the rotating shaft coincides with the axis of the corresponding cylinder of the rotating drum. The side of the corresponding cylinder of the rotating drum has an inlet and outlet. An organic cover shaft is rotatably mounted on one side of the inlet and outlet. An organic cover shaft is fixedly mounted on the organic cover shaft. The cover frame has a cover fixedly mounted on one side, and the cover can open and close the inlet and outlet by rotating along the axis of the cover shaft. A mounting seat is provided on one bottom surface of the cylinder corresponding to the drum. The mounting seat is rotatably connected to a pneumatic cylinder or a hydraulic cylinder. The power medium pipeline of the pneumatic cylinder and the hydraulic cylinder is connected to a slip ring. The pneumatic cylinder and the hydraulic cylinder are equipped with a telescopic rod. The exposed end of the telescopic rod is rotatably connected to the cover frame, or the exposed end of the telescopic rod is rotatably connected to one end of a connecting rod. The other end of the connecting rod is fixedly connected to the cover shaft. The telescopic rod can drive the cover to rotate around the axis of the cover shaft through its telescopic movement.

[0006] To facilitate the connection between the power medium pipeline and the slip ring, the mounting base is further positioned on the bottom surface of the cylinder corresponding to the drum, closer to the bottom surface of the slip ring.

[0007] To facilitate the arrangement of the cover shaft and the closure of the inlet and outlet ports, the following further details are provided: an opening is provided on the side of the cylinder corresponding to the drum, and an inlet and outlet frame is fixedly installed at the opening. The inlet and outlet frame has a rectangular inlet and outlet port with two long sides and two short sides. Both long sides are perpendicular to the bottom surface of the cylinder corresponding to the drum. The cover shaft is located on one of the long sides of the rectangular inlet and outlet port, and the axis of the cover shaft is parallel to the long side.

[0008] To further improve the sealing effect of the cover when closing the inlet and outlet, the cover is designed to have the same arc shape on any two cross sections perpendicular to the axis of the cover shaft.

[0009] The position of the cover relative to the cover frame affects the sealing effect of the cover on the inlet and outlet. To facilitate adjustment of the position of the cover relative to the cover frame, the cover is further secured to the cover frame with at least three bolts.

[0010] To achieve a dulling effect on the propellant using a rotating drum, the temperature of the drum needs to be controlled. To facilitate the arrangement of the temperature control device, a temperature control tube is further fixed and coiled around the side of the cylinder corresponding to the rotating drum, with both the inlet and outlet of the temperature control tube connected to a slip ring.

[0011] To further simplify the control of the machine cover, a return spring is installed between the cover shaft, the cover frame, or the cover and the drum. This return spring keeps the cover in the open or closed position of the inlet / outlet. For example, the return spring can be a torsion spring, located on the outer circumference of the cover shaft and abutting against both the cover shaft and the drum; alternatively, it can be a tension spring, located between the cover frame and the drum; or it can be a compression spring, located between the cover frame and the drum, or between the cover and the drum.

[0012] To further improve the sealing performance of the machine cover after the inlet and outlet are closed, a locking element is further installed on the other side of the machine cover shaft at the inlet and outlet. When the machine cover closes the inlet and outlet, the machine cover frame abuts against the locking element and locks it in place. For example, the locking element includes a spring and a spring pneumatic cylinder or spring hydraulic cylinder for driving the spring. The machine cover frame has a socket or slot that matches the spring, and the power medium pipeline has a branch pipe that is connected to the spring pneumatic cylinder or the spring hydraulic cylinder.

[0013] The beneficial effects of this utility model are as follows: The servo motor drives the drum to rotate around its axis via a reducer and a rotating shaft. By controlling the servo motor, parameters such as the drum's rotation speed, rotation time, and start / stop azimuth angle can be precisely controlled. The telescopic rod can drive the cover shaft to rotate around its axis, driving the cover to open and close the inlet and outlet ports. In addition, the servo motor can control the start and stop of the drum and the position of the inlet and outlet ports relative to the drum. When used in conjunction with an automatic feeder, this utility model can achieve feeding the drum from a fixed position through the inlet and outlet ports, and can also achieve discharging the drum from a fixed position. When the drum stops rotating and the inlet and outlet ports are at the highest position of the drum, the inlet and outlet ports can be opened to feed the drum, and the inlet and outlet ports will automatically close after feeding is completed. When the drum stops rotating and the inlet and outlet ports are at the lowest position of the drum, the inlet and outlet ports can be opened to automatically discharge the propellant from the drum, and the inlet and outlet ports will automatically close after discharging is completed, automatically expelling the propellant from the drum.

[0014] This utility model, when used in conjunction with an automatic feeder, can realize automatic feeding and automatic discharging of the drum, avoiding manual adjustment of the drum's inlet and outlet positions, as well as manual opening of the drum's inlet and outlet for feeding and discharging operations. It can achieve human-machine isolation in hazardous work areas and improve the reliability, efficiency, and safety of dulling and glossing processes. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of some components of the rotary drum-type dulling and polishing machine of this utility model.

[0016] Figure 2 yes Figure 1 A magnified view of region A in the middle.

[0017] Reference numerals: 1. Drum; 2. Cover shaft; 3. Cover frame; 4. Cover; 5. Mounting base; 6. Telescopic rod; 7. Connecting rod; 8. Feed / discharge frame; 9. Bolt; 10. Temperature control tube; 11. Locking element. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] This utility model relates to a rotary drum-type desensitizing and polishing machine for desensitizing propellants. The rotary drum-type desensitizing and polishing machine includes a frame, a rotating shaft, a reducer, a servo motor, and a rotating drum 1 mounted on the frame. The frame provides support, and the rotating shaft is mounted to the frame via at least two bearing seats. The rotating shaft is generally horizontally arranged, with bearings on its outer side mounted in bearing seats, allowing it to rotate around its axis. The reducer and servo motor are both fixedly mounted to the frame, for example, by bolts. One end of the rotating shaft is connected to the output shaft of the servo motor via the reducer, and the other end of the rotating shaft has a slip ring on its outer circumference and is fixedly connected to the rotating drum 1. The reducer and servo motor drive the rotating shaft to rotate around its axis, thereby driving the rotating drum 1 to rotate around the axis of the rotating shaft. The servo motor directly provides power to the rotating drum 1 and can achieve precise control of the rotating drum 1's rotation speed and torque monitoring, while simultaneously recording the position of the inlet and outlet of the rotating drum 1 to ensure smooth feeding and discharging. The reducer is used to increase torque, for example, by reducing speed through a gear set, ensuring the power required to drive the rotating drum 1 to rotate. The rotating shaft provides stable rotational power to the drum 1 according to the speed and direction set by the control system, avoiding imbalance caused by uneven material distribution in the drum. At the same time, it feeds back the operating status of the drum 1 to the control system to achieve real-time monitoring and precise control.

[0020] See Figure 1 The rotating drum 1 is cylindrical in shape, and the axis of its rotating shaft coincides with the axis of the corresponding cylinder. The rotating drum 1 is used to dull the propellant's shine; during dulling, the temperature of the rotating drum 1 needs to be controlled, therefore, the rotating drum 1 is also equipped with a temperature control device. See, for example... Figure 1 and Figure 2 A temperature control tube 10 is coiled and fixed on the side of the cylinder corresponding to the drum 1. The liquid temperature control medium circulates within the temperature control tube 10, thereby controlling the temperature inside the drum. The liquid temperature control medium is generally water. The temperature control tube 10 rotates together with the drum 1 around the axis. Therefore, both the inlet and outlet of the temperature control tube 10 are connected to slip rings, realizing the transportation of the liquid temperature control medium between the stationary pipe and the drum 1, and avoiding the problem of pipe entanglement caused by the rotation of the drum 1.

[0021] With the frame positioned horizontally, the axis of the cylinder corresponding to drum 1 is generally horizontally arranged, while the two bottom surfaces of the cylinder corresponding to drum 1 are generally vertically arranged. The side of the cylinder corresponding to drum 1 has inlet and outlet ports, which can be directly opened on the side of the cylinder corresponding to drum 1. Alternatively, to form regularly shaped inlet and outlet ports on drum 1 and improve the sealing effect of the cover 4 on the inlet and outlet ports, an opening is provided on the side of the cylinder corresponding to drum 1. An inlet / outlet frame 8 is fixedly installed at the opening, and the inlet / outlet frame 8 is sealed around the opening. The inlet / outlet frame 8 has inlet and outlet ports, such as... Figure 1 and Figure 2As shown. For example, the feed and discharge frame 8 is provided with a rectangular feed and discharge port. In order to facilitate the feeding and discharging of the drum 1, the feed and discharge frame 8 is provided with a rectangular feed and discharge port, which has two long sides and two short sides, and the long sides are perpendicular to the bottom surface of the cylinder corresponding to the drum 1.

[0022] A cover shaft 2 is rotatably mounted on one side of the inlet / outlet, and the cover shaft 2 can rotate around its axis. For example, the inlet / outlet frame 8 has a rectangular inlet / outlet, and the cover shaft 2 is located on one long side of the rectangular inlet / outlet, with the axis of the cover shaft 2 parallel to the long side. A cover frame 3 is fixedly mounted on the cover shaft 2, and a cover 4 is fixedly mounted on one side of the cover frame 3. The cover 4 can open and close the inlet / outlet by rotating along the axis of the cover shaft 2. The cover frame 3 is fixedly mounted on the rotating shaft 2, and the cover frame 3 is preferably a hollow frame to reduce its weight. The cover 4 can be directly fixedly mounted on the cover frame 3. The shape of the cover 4 is adapted to the shape of the inlet / outlet to ensure the sealing performance after the cover 4 closes the inlet / outlet. For example, the inlet / outlet is rectangular, and the cover 4 has the same arc shape on any two sections perpendicular to the axis of the cover shaft 2. The central angle of the arc shape is generally no greater than 180°. Figure 2 As shown.

[0023] The position of the cover 4 relative to the cover frame 3 affects the sealing effect of the cover 4 on the inlet and outlet. To improve the sealing effect of the cover 4 on the inlet and outlet, a certain distance needs to be maintained between the cover 4 and the cover frame 3. To facilitate the adjustment of this distance, and after adjustment, the cover 4 and the cover frame 3 are relatively fixed. The cover 4 can be fixed to the cover frame 3 with at least three bolts 9. For example, see Figure 2 The cover 4 is fixedly installed on the cover frame 3 by multiple bolts arranged in rows.

[0024] A mounting base 5 is provided on one bottom surface of the cylinder corresponding to the drum 1. The mounting base 5 is rotatably connected to a pneumatic or hydraulic cylinder, both of which are used to drive the machine cover 4 to open and close the inlet and outlet ports. The pneumatic and hydraulic cylinders rotate together with the drum 1 around the axis of rotation. Therefore, the power medium pipelines of the pneumatic and hydraulic cylinders are connected to the slip ring, realizing the conveying of the power medium between the pipeline and the drum 1, avoiding the problem of pipeline entanglement caused by the rotation of the drum 1. The power medium is preferably compressed air, so there is no pollution problem even if the power medium leaks. For example, the slip ring adopts a double-loop rotating structure to realize the conveying of liquid temperature-controlled medium and power medium between the stationary pipeline and the drum 1, avoiding the problem of pipeline entanglement caused by the rotation of the drum 1. To facilitate the connection between the power medium pipeline and the slip ring, the mounting base 5 is preferably located on one of the two bottom surfaces of the cylinder corresponding to the drum 1, closer to the bottom surface of the slip ring.

[0025] The pneumatic and hydraulic cylinders are equipped with telescopic rods 6. One end of the telescopic rod 6, located outside the pneumatic and hydraulic cylinders, is exposed. This exposed end is rotatably connected to the cover frame 3. The telescopic rod 6, through its extension and retraction, can drive the cover shaft 2, cover frame 3, and cover 4 to rotate as a whole around the axis of cover shaft 2, thereby opening and closing the inlet and outlet. For example, see... Figure 2 The exposed end of the telescopic rod 6 is rotatably connected to one end of the connecting rod 7, and the other end of the connecting rod 7 is fixedly connected to the cover shaft 2. The telescopic rod 6 can drive the cover shaft 2 to rotate around its axis through telescopic movement, thereby driving the cover frame 3 and the cover 4 to rotate around the axis of the cover shaft 4 as a whole, ultimately realizing the opening and closing of the inlet and outlet.

[0026] The opening and closing of the inlet and outlet of the cover 4 can be driven and controlled by the telescopic rod 6. To reduce the difficulty of controlling the cover 4, a return spring can also be installed between the cover shaft 2, the cover frame 3, or the cover 4 and the drum 1. The return spring keeps the cover 4 in the open or closed state of the inlet and outlet. For example, when the pneumatic cylinder or hydraulic cylinder drives the cover 4 to close the inlet and outlet through the telescopic rod 6 while the return spring keeps the cover 4 in the open state, the return spring stores energy. After the pneumatic cylinder or hydraulic cylinder relaxes, that is, when the telescopic rod 6 no longer applies force to the cover shaft 2, the cover frame 3, and the cover 4 as a whole, the return spring causes the cover 4 to automatically open the inlet and outlet and keep the inlet and outlet in the open state until the pneumatic cylinder or hydraulic cylinder drives the cover 4 to close the inlet and outlet through the telescopic rod 6. For example, the return spring keeps the cover 4 in the closed inlet / outlet state. During the opening of the inlet / outlet by the pneumatic or hydraulic cylinder via the telescopic rod 6, the return spring stores energy. After the pneumatic or hydraulic cylinder relaxes, that is, when the telescopic rod 6 no longer applies force to the cover shaft 2, cover frame 3, and cover 4 as a whole, the return spring automatically closes the inlet / outlet and keeps it closed until the pneumatic or hydraulic cylinder drives the cover 4 to open the inlet / outlet via the telescopic rod 6. The return spring can be a torsion spring, a tension spring, or a compression spring. For example, the return spring is a torsion spring, located on the outer periphery of the cover shaft 2, and abuts against both the cover shaft 2 and the drum 1; or, the return spring is a tension spring, located between the cover frame 3 and the drum 1, or between the cover 4 and the drum 1; or, the return spring is a compression spring, located between the cover frame 3 and the drum 1, or between the cover 4 and the drum 1.

[0027] To prevent material leakage caused by improper closure of the inlet and outlet, a locking element 11 can be fixedly installed on the other side of the cover shaft 2. When the cover 4 closes the inlet and outlet, the cover frame 3 abuts against and locks the locking element 11. After the cover frame 3 and the locking element 11 are locked, the cover 4 cannot be opened; the cover 4 can only be opened after the locking of the cover frame 3 and the locking element 11 is released. For example, the locking element 11 includes a spring and a spring pneumatic cylinder or spring hydraulic cylinder for driving the spring. The cover frame 3 is provided with a socket or slot that matches the spring. After the spring pops out, it will automatically retract upon impact with the cover frame 3. After the spring enters the socket or slot, it will automatically pop out and lock the cover frame 3. The power medium pipeline is provided with a branch pipe, which is connected to the medium pipeline of the spring pneumatic cylinder or the spring hydraulic cylinder. The spring of the locking element 11 moves synchronously and is controlled synchronously with the telescopic rod 6. In addition, the media pipelines for the pneumatic and hydraulic spring cylinders can be set up separately and connected to the slip ring.

[0028] This utility model is generally used in conjunction with an automatic feeder. When material needs to be added to the drum 1, the servo motor controls the inlet and outlet of the drum 1 to be at the highest position. Then, the telescopic rod 6 is used to operate the cover 4 to open the inlet and outlet, and the automatic feeder opens the feed valve to add material into the drum 1. After the material is added, the telescopic rod 6 controls the cover 4 to close the inlet and outlet, and the servo motor drives the drum 1 to rotate and begin the dulling process. After the dulling process is complete, the servo motor controls the inlet and outlet of the drum 1 to be at the lowest position, and the telescopic rod 6 is used to operate the cover 4 to open the inlet and outlet to release the material. The drum can be rotated repeatedly in a counterclockwise and clockwise direction 3 to 5 times to ensure that all material can be smoothly poured out.

Claims

1. A rotary drum type dulling and polishing machine, characterized in that: The assembly includes a frame, a rotating shaft, a reducer, a servo motor, and a rotating drum (1) mounted on the frame. The rotating shaft is mounted on the frame via at least two bearing seats. One end of the rotating shaft is connected to the output shaft of the servo motor via the reducer. The other end of the rotating shaft has a slip ring on its outer circumference and is fixedly connected to the rotating drum (1). The rotating drum (1) is cylindrical in shape. The axis of the rotating shaft coincides with the axis of the corresponding cylinder of the rotating drum (1). The side of the corresponding cylinder of the rotating drum (1) has an inlet and outlet. A cover shaft (2) is rotatably mounted on one side of the inlet and outlet. A cover frame (3) is fixedly mounted on the cover shaft (2). A cover (4) is fixedly mounted on one side of the cover frame (3). The machine cover (4) can open and close the inlet and outlet by rotating the axis of the cover shaft (2); the bottom surface of the cylinder corresponding to the drum (1) is provided with a mounting seat (5), the mounting seat (5) is rotatably connected to a pneumatic cylinder or a hydraulic cylinder, the power medium pipeline of the pneumatic cylinder and the hydraulic cylinder is connected to a slip ring, the pneumatic cylinder and the hydraulic cylinder are provided with a telescopic rod (6), the exposed end of the telescopic rod (6) is rotatably connected to the machine cover frame (3), or the exposed end of the telescopic rod (6) is rotatably connected to one end of the connecting rod (7), the other end of the connecting rod (7) is fixedly connected to the machine cover shaft (2), the telescopic rod (6) can drive the machine cover (4) to rotate around the axis of the machine cover shaft (2) through telescopic movement.

2. The rotary drum type dulling and polishing machine as described in claim 1, characterized in that: The mounting base (5) is located on the bottom surface of the cylinder corresponding to the drum (1) near the bottom surface of the slip ring.

3. The rotary drum type dulling and polishing machine as described in claim 1, characterized in that: The cylinder corresponding to the drum (1) has an opening on its side. The feed frame (8) is fixedly installed at the opening. The feed frame (8) has a rectangular feed port. The rectangular feed port has two long sides and two short sides. Both long sides are perpendicular to the bottom surface of the cylinder corresponding to the drum (1). The cover shaft (2) is set on one of the long sides of the rectangular feed port. The axis of the cover shaft (2) is parallel to the long side.

4. The rotary drum type dulling and polishing machine as described in claim 1, characterized in that: The cover (4) has the same arc shape on any two cross sections perpendicular to the axis of the cover shaft (2).

5. The rotary drum type dulling and polishing machine as described in claim 1, characterized in that: The cover (4) is fixedly mounted to the cover frame (3) by at least three bolts (9).

6. The rotary drum type dulling and polishing machine as described in claim 1, characterized in that: A temperature control tube (10) is coiled and fixed on the side of the cylinder corresponding to the drum (1). The inlet and outlet of the temperature control tube (10) are both connected to the slip ring.

7. The rotary drum type dulling and polishing machine as described in any one of claims 1 to 6, characterized in that: A reset spring is provided between the cover shaft (2), cover frame (3) or cover (4) and the drum (1). The reset spring keeps the cover (4) in the open or closed state of the inlet and outlet.

8. The rotary drum type dulling and polishing machine as described in claim 7, characterized in that: The reset spring is a torsion spring, which is located on the outer periphery of the cover shaft (2) and abuts against the cover shaft (2) and the drum (1) respectively; or, the reset spring is a tension spring, which is located between the cover frame (3) and the drum (1); or the reset spring is a compression spring, which is located between the cover frame (3) and the drum (1) or between the cover (4) and the drum (1).

9. The rotary drum type dulling and polishing machine as described in any one of claims 1 to 6, characterized in that: On the other side of the machine cover shaft (2) installed at the inlet and outlet, a locking element (11) is fixedly installed. When the machine cover (4) closes the inlet and outlet, the machine cover frame (3) abuts against the locking element (11) and is locked in place.

10. The rotary drum type dulling and polishing machine as described in claim 9, characterized in that: The locking element (11) includes a spring and a spring pneumatic cylinder or spring hydraulic cylinder for driving the spring. The cover frame (3) is provided with a socket or slot adapted to the spring. The power medium pipeline is provided with a branch pipe, which is connected to the spring pneumatic cylinder or the spring hydraulic cylinder.

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