A gun barrel oiling apparatus

Abstract

The utility model discloses an oiling equipment for cannon barrel belongs to cannon oiling technical field, and the lower extreme of top cover is connected with first layer telescopic pipe, and the top center of top cover is connected with first heavy electric push rod, and drives first layer telescopic pipe to retract, and the lower extreme of first layer telescopic pipe is connected with second layer telescopic pipe, and the telescopic end of first heavy electric push rod is connected with second heavy electric push rod, and drives second layer telescopic pipe to retract. Depth adjusting mechanism is accurate to send oiling device to target depth, and oil injection oiling system is through electric control oil injection, and the close rotation of cylinder is coated with oil, realizes the accurate, even coating of different depth cannon pipe inner wall, and the follow -up of oil pipeline guarantees the stable oil supply during the depth adjustment process, and the continuous work of cooperation oil injection oiling system makes the cannon pipe inner wall from the entrance to the designated depth can be evenly coated with oil, improves the oiling efficiency and quality, satisfies the oiling demand of different specifications cannon barrel.

Description

Technical Field

[0001] This utility model relates to the field of artillery oiling technology, and in particular to an oiling device for artillery barrels. Background Technology

[0002] The gun barrel is the core component of an artillery firing system. Its main functions are: guiding the projectile along a predetermined trajectory during firing, imparting initial velocity and spin stability to the projectile (achieved through rifling in rifled guns), and withstanding the high temperature and pressure of the propellant gases (instantaneous pressure can reach hundreds of megapascals) and the friction of the projectile. Its structural features include: rifling (for rifled guns) or a smooth inner surface (for smoothbore guns), a chamber (for loading propellant), and a progressive rifling design (optimizing the projectile acceleration process). The ratio of barrel length to caliber (bore multiple) directly affects the gun's range and accuracy. Materials must possess high strength (tensile strength typically exceeding 1000 MPa), high toughness, high temperature resistance (withstanding gas temperatures above 3000℃), and fatigue resistance. High-strength low-alloy steel (such as 30CrNi3MoV) is commonly used, and its performance is enhanced through processes such as integral forging, heat treatment (quenching and tempering), and chrome plating of the inner bore (to improve wear resistance and corrosion resistance).

[0003] Oiling equipment is specialized equipment for artillery maintenance. Its core function is to evenly coat the inner surface of the barrel with protective grease to prevent corrosion caused by residual propellant gases (containing corrosive components such as nitrogen oxides) and environmental humidity, ensuring the barrel's integrity during storage and standby. The oil supply system includes: an oil tank (stores specialized protective grease, such as bore protection grease), a gear pump (provides an oil supply pressure of 0.5-2 MPa), and a filter (filters impurities to prevent nozzle clogging); a control system (PLC or manual control of the oiling speed (0.1-0.5 m / s) and oil supply (adjusted according to caliber, typically 50-200 g per meter of barrel) to ensure even grease coverage of the inner surface); and auxiliary devices such as a positioning bracket (fixes the barrel axis) and a cleaning module (removes residual debris from the inner surface before oiling). The working principle is as follows: after the protective grease is pressurized by the pump, it is delivered to the nozzle through the grease coating rod. During the axial movement inside the barrel, the nozzle evenly adheres the grease to the barrel wall by spraying or wetting, forming a protective film of 0.1 to 0.3 mm thickness. After the coating is completed, it needs to be left to stand to allow the grease to cure (some greases contain corrosion inhibitors to enhance the rust prevention effect).

[0004] Currently, when using artillery barrel coating equipment, the coating rod is manually extended and retracted for adjustment. This has several drawbacks: first, manual operation lacks precision, and the extension length and position are easily affected by human factors, leading to unstable positioning of the coating rod inside the barrel; second, the inside of the barrel is not visible, making it impossible for operators to monitor the position of the coating rod and the coating area in real time, easily resulting in missed areas or uneven coating; third, manual adjustment is inefficient and labor-intensive, especially for long-barreled artillery, requiring considerable time and effort; and fourth, improper operation may cause the coating rod to collide with the inner wall of the barrel, causing scratches on the barrel or damage to the coating rod, affecting the coating effect and the equipment's lifespan. Utility Model Content

[0005] The main objective of this invention is to provide an oiling device for artillery barrels, which can effectively solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: An oiling device for artillery barrels includes a top cover, an oil supply pipe, and an oil spray head. The oil spray head is connected to the end of the oil supply pipe and performs oil spraying. The oil supply pipe extends from an opening on the end face of the top cover. The lower end of the top cover is connected to a first layer of telescopic tube, and the top center of the top cover is connected to a first electric push rod, which drives the first layer of telescopic tube to extend and retract. The lower end of the first layer of telescopic tube is connected to a second layer of telescopic tube. The telescopic end of the first electric push rod is connected to a second electric push rod, which drives the second layer of telescopic tube to extend and retract. The lower end of the second electric push rod is connected to a servo motor, and the output end of the servo motor is connected to a reducer. The reducer is connected to an assembled oiling device through a drive shaft, and the extension degree of the assembled oiling device is adjusted according to the depth of the barrel through two telescopic mechanisms. The assembled oiling device includes an assembled inner frame and an oiling roller. The assembled inner frame is equipped with two connecting seats, and the two connecting seats are connected to a lateral adjustment bracket and a pop-out bracket. The outer ends of the lateral adjustment bracket and the pop-out bracket are connected to the oiling roller through a movable bracket. The oiling roller is in close contact with the inner wall of the barrel through the lateral adjustment bracket and the pop-out bracket, and then the oiling roller is driven by a servo motor to spray oil onto the inner wall of the barrel for uniform roller coating.

[0007] Optionally, the top cover and the first layer of telescopic tube are heat-fused together, the telescopic length of the first layer of telescopic tube is the same as the telescopic length of the first electric push rod, the telescopic length of the second layer of telescopic tube is the same as the telescopic length of the second electric push rod, and the first electric push rod and the second electric push rod are fixed together by bolts. Optionally, the servo motor has a protruding tube at its tail end, which is connected to the telescopic end of the second electric push rod by bolts. The output end of the reducer is connected to the drive shaft by bolts, and the drive shaft passes through the second telescopic tube. A bearing is provided at the connection between the two. Optionally, the oil pipeline is provided with multiple telescopic pleats, the length of which is adjusted with the first electric push rod and the second electric push rod. The oil nozzle is installed at an angle at the bottom of the second telescopic pipe, and an electric control valve is provided at the connection between the oil nozzle and the oil pipeline. Optionally, the three sets of connecting seats are distributed in a ring on the side wall of the assembled inner frame and connected to the lateral adjustment bracket and the pop-out bracket through a rotating shaft. The lateral adjustment bracket and the pop-out bracket are connected to both ends of the movable bracket and play a supporting and pop-out role. The oiling roller is placed in the movable bracket and the two are connected through a rotating shaft. The outer wall of the oiling roller is the oiling layer. The oiling roller evenly coats the inner wall of the barrel with sprayed oil. Optionally, the pop-out bracket includes a support frame and a pop-out spring. The pop-out spring is connected to the movable bracket through the support frame, and the characteristics of the pop-out spring enable the oiling roller to make close contact with the inner wall of the barrel. Optionally, the lower end of the assembled inner frame is provided with an assembly tube, and the upper end of the assembled inner frame is provided with an opening adapted to the assembly tube, so as to allow the assembly tube of the next-level assembled inner frame to be inserted, thereby realizing the assembly of multiple sets of assembled inner frames and thus expanding the number of oiling rollers.

[0008] Compared with the prior art, the present invention has the following beneficial effects: The oiling device can be precisely adjusted to penetrate the barrel by working together with two telescopic tubes and dual electric push rods to accommodate barrels of different depths. The multi-section telescopic pleats of the oil pipeline automatically adjust their length as the electric push rods extend and retract, ensuring that the oil circuit remains unobstructed during depth adjustment and preventing oil supply interruption or pipeline damage.

[0009] The electronically controlled valve precisely controls the oil circuit to avoid oil waste; the pop-out spring of the pop-out bracket keeps the oiling roller in close contact with the inner wall of the barrel, ensuring no dead corners in the oiling process; three sets of connecting seats are evenly distributed around the circumference, working with a servo motor to drive the oiling device to rotate, achieving uniform roller coating of oil; the oil layer on the outer surface of the oiling roller improves the uniformity of the coating; the assembled inner frame can be connected in series to expand the number of oiling rollers, adapting to the oiling needs of barrels of different depths.

[0010] The depth adjustment mechanism precisely delivers the oiling device to the target depth. The oil spraying system applies oil at the corresponding depth through electronically controlled oil spraying and roller close-to-rotation, achieving precise and uniform coating of the inner wall of the gun barrel at different depths. During the depth adjustment process, the oil supply pipeline moves to ensure stable oil supply. Combined with the continuous operation of the oil spraying system, the entire inner wall of the gun barrel can be uniformly coated with oil from the inlet to the specified depth, improving oiling efficiency and quality, and meeting the oiling requirements of gun barrels of different specifications. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2This is a side view of the overall structure of this utility model; Figure 3 This is a side sectional view of the structure of this utility model; Figure 4 This is an exploded view of the assembled oiling device of this utility model.

[0012] In the diagram: 1. Top cover; 2. First layer telescopic tube; 3. Second layer telescopic tube; 4. First electric push rod; 5. Second electric push rod; 6. Servo motor; 7. Reducer; 8. Oil supply pipe; 9. Oil injector; 10. Drive shaft; 11. Assembled inner frame; 12. Connecting seat; 13. Lateral adjustment bracket; 14. Pop-up bracket; 15. Movable bracket; 16. Oiling roller; 17. Assembly tube. Detailed Implementation

[0013] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0014] like Figure 1 - Figure 4 As shown, an oiling device for artillery barrels mainly consists of a top cover 1, an oil supply pipe 8, and an oil spray head 9. The oil spray head 9 is connected to the end of the oil supply pipe 8 for performing the oil spraying operation. The oil supply pipe 8 extends from an opening on the end face of the top cover 1. A first-layer telescopic pipe 2 is connected to the bottom of the top cover 1, and a first-level electric push rod 4 is installed at the top center to drive the first-layer telescopic pipe 2 to extend and retract. The bottom end of the first-layer telescopic pipe 2 is connected to a second-layer telescopic pipe 3, and the telescopic end of the first-level electric push rod 4 is connected to a second-level electric push rod 5 to control the extension and retraction of the second-layer telescopic pipe 3. A servo motor 6 is installed at the bottom of the second-level electric push rod 5, and the output end of the servo motor 6 is connected to a reducer 7. The reducer 7 drives the assembled oiling device to move through a drive shaft 10. The entire device adapts to different depths of the gun barrel through a two-section telescopic structure, achieving precise adjustment of the extension position of the oiling device.

[0015] The modular oiling device consists of a modular inner frame 11 and an oiling roller 16. The modular inner frame 11 is equipped with two connecting seats 12, which connect to a lateral adjustment bracket 13 and a pop-out bracket 14, respectively. The outer ends of these two brackets are connected to the oiling roller 16 via movable brackets 15. The lateral adjustment brackets 13 and pop-out brackets 14 ensure that the oiling roller 16 remains in close contact with the inner wall of the barrel. A servo motor 6 drives the oiling roller 16 to rotate via a reducer 7 and a drive shaft 10, thereby evenly spraying oil onto the inner wall of the barrel.

[0016] The top cover 1 is fixed to the first telescopic tube 2 by heat fusion. The extension and retraction stroke of the first telescopic tube 2 is exactly the same as that of the first electric push rod 4, while the extension and retraction of the second telescopic tube 3 is synchronized with that of the second electric push rod 5. The first electric push rod 4 and the second electric push rod 5 are fastened together by bolts. The servo motor 6 has a protruding tube at its tail, which is fixed to the extension end of the second electric push rod 5 by bolts. The output end of the reducer 7 is connected to the drive shaft 10 by bolts. The drive shaft 10 passes through the second telescopic tube 3, and a bearing is installed at the connection to ensure smooth rotation.

[0017] The oil pipeline 8 has multiple telescopic pleated sections, which can automatically adjust their length with the extension and retraction of the electric push rod. The oil nozzle 9 is obliquely installed at the bottom of the second-layer telescopic pipe 3, and an electrically controlled valve is installed at its connection with the oil pipeline 8 to control the flow of oil. Three sets of connecting seats 12 are evenly distributed circumferentially along the assembled inner frame 11, and are connected to the lateral adjustment bracket 13 and the pop-out bracket 14 via rotating shafts. The lateral adjustment bracket 13 and the pop-out bracket 14 respectively support the two ends of the movable bracket 15, serving to position and pop open. The oiling roller 16 is installed inside the movable bracket 15 and is rotatably connected via a rotating shaft; its outer surface is coated with an oil layer for evenly applying oil.

[0018] The ejector bracket 14 includes a support frame and an ejector spring. The spring force keeps the oiling roller 16 in close contact with the inner wall of the gun barrel. The bottom of the modular inner frame 11 is provided with an assembly tube 17, and the top is provided with a matching opening, allowing the assembly tube 17 of the next modular inner frame 11 to be inserted, thereby realizing the series assembly of multiple units and expanding the number of oiling rollers 16 to meet the oiling needs of gun barrels of different specifications.

[0019] The first layer of telescopic tube 2 is fixed to the bottom of the top cover 1 by heat fusion; the first electric push rod 4 is installed at the center of the top of the top cover 1; the bottom end of the first layer of telescopic tube 2 is connected to the second layer of telescopic tube 3; the telescopic end of the first electric push rod 4 is fastened to the second electric push rod 5 by bolts. The tail tube of the servo motor 6 is fixed to the telescopic end of the second electric push rod 5 by bolts; the output end of the reducer 7 is connected to the drive shaft 10 by bolts, the drive shaft 10 passes through the second layer of telescopic tube 3, and a bearing is set at the connection; the output end of the servo motor 6 is connected to the reducer 7. The oil pipeline 8 extends out from the opening on the end face of the top cover 1, and its multi-segment telescopic pleated part adjusts its length with the extension and retraction of the electric push rod; the oil nozzle 9 is installed obliquely at the bottom of the second layer of telescopic tube 3, and an electric control valve is installed at the connection with the oil pipeline 8. Three sets of connecting seats 12 are evenly distributed along the circumference of the assembled inner frame 11, and are connected to the lateral adjustment bracket 13 and the pop-out bracket 14 through a rotating shaft; the lateral adjustment bracket 13 and the pop-out bracket 14 (including the support frame and the pop-out spring) respectively support the two ends of the movable bracket 15; the oiling roller 16 is installed inside the movable bracket 15 through a rotating shaft, and the outer surface is an oil coating layer; the bottom end of the drive shaft 10 is connected to the top end of the assembled inner frame 11, driving the oiling device to move as a whole.

[0020] Activate the first electric push rod 4 and the second electric push rod 5 to drive the first telescopic tube 2 and the second telescopic tube 3 to extend and retract, adjusting the depth of the oiling device into the barrel. The oil delivery pipe 8 automatically adjusts its length as it extends and retracts. Open the electrically controlled valve at the connection between the oil nozzle 9 and the oil delivery pipe 8, and the oil is sprayed onto the inner wall of the barrel through the oil delivery pipe 8 and the oil nozzle 9. Activate the servo motor 6, which drives the assembled oiling device to rotate via the reducer 7 and the drive shaft 10. The spring force of the pop-out bracket 14 keeps the oiling roller 16 pressed tightly against the inner wall of the barrel, and the oil coating layer on the outer surface of the oiling roller 16 evenly coats the oil onto the inner wall. After oiling is completed, close the electrically controlled valve to cut off the oil circuit, reverse the drive of the first electric push rod 4 and the second electric push rod 5, retract the first telescopic tube 2 and the second telescopic tube 3, and remove the equipment.

[0021] Take a new section of the assembled inner frame 11 and align its top opening with the assembly tube 17 at the bottom of the assembled inner frame 11 in the assembled unit; insert the assembly tube 17 of the new assembled inner frame 11 to the top opening of the upper assembled inner frame 11 to achieve series assembly; repeat the steps to increase the number of assembled inner frames 11 according to the barrel depth requirements, and simultaneously expand the number of oiling rollers 16.

[0022] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. An oiling device for artillery barrels, comprising a top cover (1), an oil supply pipe (8), and an oil spray head (9), wherein the oil spray head (9) is connected to the end of the oil supply pipe (8) and oil spraying is performed through the oil spray head (9), and the oil supply pipe (8) extends from an opening on the end face of the top cover (1), characterized in that: The lower end of the top cover (1) is connected to the first layer telescopic tube (2), and the top center of the top cover (1) is connected to the first electric push rod (4), which drives the first layer telescopic tube (2) to extend and retract. The lower end of the first layer telescopic tube (2) is connected to the second layer telescopic tube (3). The telescopic end of the first electric push rod (4) is connected to the second electric push rod (5), which drives the second layer telescopic tube (3) to extend and retract. The lower end of the second electric push rod (5) is connected to the servo motor (6), and the output end of the servo motor (6) is connected to the reducer (7). The reducer (7) is connected to the assembled oiling device through the drive shaft (10), and the extension degree of the assembled oiling device is adjusted according to the depth of the barrel through two telescopic mechanisms. The assembled oiling device includes an assembled inner frame (11) and an oiling roller (16). The assembled inner frame (11) is provided with two connecting seats (12). The two connecting seats (12) are connected to a lateral adjustment bracket (13) and a pop-out bracket (14). The outer ends of the lateral adjustment bracket (13) and the pop-out bracket (14) are connected to the oiling roller (16) through a movable bracket (15). The oiling roller (16) is brought into close contact with the inner wall of the barrel by the lateral adjustment bracket (13) and the pop-out bracket (14). Then, the oiling roller (16) is driven by a servo motor (6) to uniformly coat the inner wall of the barrel with oil.

2. The oiling device for artillery barrels according to claim 1, characterized in that: The top cover (1) and the first layer telescopic tube (2) are fixed by heat fusion. The telescopic length of the first layer telescopic tube (2) is consistent with the telescopic length of the first heavy electric push rod (4). The telescopic length of the second layer telescopic tube (3) is consistent with the telescopic length of the second heavy electric push rod (5). The first heavy electric push rod (4) and the second heavy electric push rod (5) are fixed together by bolts.

3. The oiling device for artillery barrels according to claim 2, characterized in that: The servo motor (6) has a convex tube at its tail end, which is connected to the telescopic end of the second electric push rod (5) by bolts. The output end of the reducer (7) is connected to the drive shaft (10) by bolts, and the drive shaft (10) passes through the second telescopic tube (3). A bearing is provided at the connection between the two.

4. The oiling device for artillery barrels according to claim 3, characterized in that: The oil pipeline (8) is provided with multiple telescopic pleats, the length of which is adjusted by the first electric push rod (4) and the second electric push rod (5). The oil nozzle (9) is installed at an angle at the bottom of the second telescopic pipe (3). An electric control valve is provided at the connection between the oil nozzle (9) and the oil pipeline (8).

5. The oiling device for artillery barrels according to claim 4, characterized in that: The three sets of connecting seats (12) are distributed in a ring on the side wall of the assembled inner frame (11) and connected to the lateral adjustment bracket (13) and the pop-out bracket (14) through a rotating shaft. The lateral adjustment bracket (13) and the pop-out bracket (14) are connected to both ends of the movable bracket (15) to provide support and pop-out. The oiling roller (16) is placed in the movable bracket (15) and connected to it through a rotating shaft. The outer wall of the oiling roller (16) is the oiling layer. The oiling roller (16) is used to evenly coat the inner wall of the barrel with oil.

6. The oiling device for artillery barrels according to claim 5, characterized in that: The pop-out bracket (14) includes a support frame and a pop-out spring. The pop-out spring is connected to the movable bracket (15) through the support frame. The characteristics of the pop-out spring enable the oiling roller (16) to make close contact with the inner wall of the barrel.

7. The oiling device for artillery barrels according to claim 6, characterized in that: The lower end of the assembled inner frame (11) is provided with an assembly tube (17), and the upper end of the assembled inner frame (11) is provided with an opening that is compatible with the assembly tube (17) for the assembly tube (17) of the next-level assembled inner frame (11) to be inserted, so as to realize the assembly of multiple sets of assembled inner frames (11) and thus expand the number of oiling rollers (16).

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