Wiping device for inner wall of gun barrel of electromagnetic gun

Abstract

The utility model relates to a wiping device for the inner wall of an electromagnetic gun barrel, and relates to the technical field of electromagnetic gun maintenance. The electromagnetic gun barrel inner wall wiping device comprises a rotating motor and a rotating shaft, and one end of the rotating shaft is connected with an output shaft of the rotating motor; the other end of the rotating shaft is fixedly connected with a first wiping head; the rotating shaft is slidably sleeved with a sleeve, the end of the sleeve is fixedly connected with a second wiping head, the rotating shaft is slidably sleeved with the second wiping head, a transmission structure is arranged between the rotating shaft and the sleeve, and the rotating shaft can drive the sleeve to linearly reciprocate when rotating through the transmission structure. The first wiping head and the second wiping head are both disc-shaped and are coaxially arranged at an interval, and the outer diameter of the second wiping head is larger than that of the first wiping head. According to the gun barrel inner wall cleaning device, by arranging the rotating first wiping head and the second wiping head which does linear reciprocating motion, efficient and uniform gun barrel inner wall cleaning is achieved, and the cleaning efficiency and quality are improved.

Description

Technical Field

[0001] This application relates to the field of electromagnetic railgun maintenance technology, and in particular to a wiping device for the inner wall of an electromagnetic railgun barrel. Background Technology

[0002] An electromagnetic railgun is an advanced kinetic energy weapon that utilizes electromagnetic launch technology. Unlike traditional cannons that use the pressure of propellant gases to propel a projectile, an electromagnetic railgun uses the Ampere force generated by an electromagnetic field in an electromagnetic system to accelerate the projectile, giving it the kinetic energy needed to strike the target. Compared to traditional gunpowder-propelled cannons, electromagnetic railguns can significantly increase the speed and range of projectiles. Electromagnetic railguns have been extensively researched and developed in the military field; the high precision and high speed of this weapon system make it a crucial piece of equipment in future warfare.

[0003] After prolonged use, dirt and residue can easily accumulate on the inner wall of an electromagnetic railgun barrel, severely affecting its firing performance and service life. Therefore, regular maintenance and cleaning of the barrel's inner wall is of paramount importance.

[0004] Traditional methods for cleaning the inner walls of artillery barrels typically involve manual wiping. Operators use a long, rod-shaped tool with a cloth or other wiping material attached to the end, and manually push the tool into the barrel to wipe the inside. Some automated wiping devices also exist, using a motor to rotate the wiping head to clean the barrel.

[0005] While the methods described above can achieve some degree of cleaning of the inner wall of the gun barrel, they still have significant shortcomings. Manual cleaning is time-consuming, labor-intensive, inefficient, and prone to incomplete cleaning, resulting in poor wiping effects. Electric wiping devices, relying solely on the rotation of the wiping head, also suffer from incomplete cleaning and poor results. Furthermore, the axial feed of the wiping head after each section is difficult to control; excessive feed leads to large gaps and missed areas, while insufficient feed reduces efficiency. Utility Model Content

[0006] In order to improve the cleaning effect and efficiency of wiping the inner wall of an electromagnetic railgun barrel, this application provides a wiping device for the inner wall of an electromagnetic railgun barrel.

[0007] The wiping device for the inner wall of an electromagnetic gun barrel provided in this application adopts the following technical solution:

[0008] A wiping device for the inner wall of an electromagnetic gun barrel includes a rotary motor and a rotary shaft, one end of which is connected to the output shaft of the rotary motor; the other end of the rotary shaft is fixedly connected to a first wiping head.

[0009] A sleeve is slidably sleeved on the outside of the rotating shaft. A second wiping head is fixedly connected to the end of the sleeve and is slidably sleeved on the rotating shaft. A transmission structure is provided between the rotating shaft and the sleeve, and the sleeve can be driven to move linearly back and forth when the rotating shaft rotates through the transmission structure.

[0010] Both the first wiping head and the second wiping head are disc-shaped and are coaxially spaced apart. The outer diameter of the second wiping head is larger than that of the first wiping head.

[0011] By adopting the above technical solution, the rotary motor drives the rotary shaft to rotate, which in turn drives the first wiping head to rotate and wipe in place. At the same time, during the rotation of the rotary shaft, the sleeve moves back and forth in a straight line, thereby driving the second wiping head to move back and forth along the axial direction of the gun barrel. It is possible to wipe and clean a large area of ​​the inner wall of the gun barrel without moving the entire wiping device, which is highly efficient and reduces the phenomenon of missed wiping.

[0012] This application achieves efficient and uniform cleaning of the inner wall of the gun barrel by setting a rotating first wiping head and a linearly reciprocating second wiping head, thus improving cleaning efficiency and quality. This application uses a single rotary motor to simultaneously drive the first and second wiping heads, resulting in a compact structure, small size, and reduced manufacturing costs.

[0013] Optionally, the transmission structure includes a positioning element, a positioning hole formed on the sleeve, and a curved guide groove formed on the outer circumferential surface of the rotating shaft. The curved guide groove is connected end to end along the circumference of the rotating shaft to form a reciprocating closed groove. The positioning element passes through the positioning hole and is inserted into the curved guide groove.

[0014] By adopting the above technical solution, the rotating shaft can drive the sleeve to move linearly back and forth during rotation, thereby realizing the continuous linear back and forth motion of the large-diameter second wiping head, which greatly improves the wiping area, wiping effect and efficiency. This application ensures the stability and continuity of the entire device operation, avoids wiping dead corners caused by intermittent movement, and further improves the cleaning effect.

[0015] Optionally, there are two sets of curved guide grooves, which are spaced apart along the axial direction of the rotation axis. The number of positioning elements and positioning holes are four in each set. Each set of curved guide grooves corresponds to two positioning elements and two positioning holes. The two positioning elements and two positioning holes corresponding to each set of curved guide grooves are symmetrically arranged on both sides of the rotation axis. The positioning elements and positioning holes corresponding to different sets of curved guide grooves are staggered.

[0016] By adopting the above technical solution, the load is effectively distributed, the stability of the system is improved, the reliability of the curved guide groove is increased, the impact caused by the wear of a single curved guide groove is reduced, and it can ensure that the rotating shaft drives the sleeve to move in a stable and efficient linear reciprocating motion when rotating.

[0017] Optionally, each set of the curved guide grooves includes two sinusoidal rising curve segments and two sinusoidal falling curve segments, with the sinusoidal rising curve segments and the sinusoidal falling curve segments connected end to end in sequence, and the connection between the sinusoidal rising curve segments and the sinusoidal falling curve segments being smoothly transitioned.

[0018] By adopting the above technical solution, it can be ensured that the second wiping head achieves stable and continuous linear reciprocating motion when the rotating shaft rotates.

[0019] Optionally, the first wiping head includes a first rotating disk and a first wiping brush disposed on the outer peripheral surface of the first rotating disk; the middle part of the first rotating disk has a spline shaft, and the end of the rotating shaft has a spline groove extending inward from the end face along its axial direction, and the spline shaft of the first rotating disk is inserted into the spline groove.

[0020] By adopting the above technical solution, the splined shaft of the first rotating disk and the splined groove of the rotating shaft are matched, which not only ensures that the first wiping head rotates synchronously with the rotating shaft, but also enhances the stability of the structure and avoids loosening caused by vibration or impact; thus, it can ensure a stable and reliable connection between the first wiping head and the rotating shaft and maintain stable rotation, thereby improving wiping efficiency and cleaning effect.

[0021] Optionally, the second wiping head includes a second rotating disk and a second wiping brush disposed on the outer peripheral surface of the second rotating disk; the end of the sleeve is welded to the middle of one side of the second rotating disk or fixed by bolts, or both are integrally formed.

[0022] By adopting the above technical solution, it is possible to ensure that the second wiping head is firmly and reliably fixed on the sleeve, while ensuring that the first wiping brush on its outer circumference is in uniform contact with the inner wall of the gun barrel, thereby improving the wiping effect.

[0023] Optionally, a connecting sleeve is fixedly connected to the output shaft of the rotary motor. A connecting hole is provided at the end of the connecting sleeve away from the rotary motor. The end of the rotary shaft is inserted into the connecting hole. A keyway is provided on the wall of the connecting hole. The rotary shaft and the connecting sleeve are circumferentially limited and connected by a snap-fit ​​key that snaps into the keyway.

[0024] By adopting the above technical solution, a stable connection between the rotary motor and the rotary shaft is achieved, while ensuring circumferential synchronous movement between the two. Specifically, the design of the connecting sleeve allows the rotary shaft to be firmly fixed on the output shaft of the rotary motor, while the cooperation of the keyway and the snap-fit ​​key ensures that the rotary shaft will not shift circumferentially when rotating with the rotary motor, thereby improving the overall stability of the device. This design not only enhances the operational reliability of the device but also simplifies the assembly process and reduces the failure rate. Optionally, a sliding slot is also provided at the end of the connecting sleeve away from the rotary motor. The sliding slot is spaced around the periphery of the connecting hole, and one end of the sleeve is slidably inserted into the sliding slot.

[0025] By adopting the above technical solution, the stability and reliability of the linear movement of the sleeve can be further ensured when the rotating motor drives the rotating shaft to rotate.

[0026] In summary, this application includes at least one of the following beneficial technical effects:

[0027] 1. This application achieves efficient and uniform cleaning of the inner wall of the gun barrel by setting a rotating first wiping head and a linearly reciprocating second wiping head, thereby improving cleaning efficiency and quality.

[0028] 2. In this application, a single rotary motor drives the first wiping head and the second wiping head simultaneously, resulting in a compact structure, small size, and reduced manufacturing costs.

[0029] 3. In this application, both the first wiping head and the second wiping head are disc-shaped and coaxially spaced apart, which ensures that the two wiping heads can act on different areas at the same time during the wiping process, thereby increasing the wiping area.

[0030] 4. In this application, the dimensions of the first wiping head and the second wiping head are reasonably set, and the outer diameter of the second wiping head is larger than that of the first wiping head, so that the wiping effect is better.

[0031] 5. This application does not require moving the entire wiping device to clean a large area of ​​the gun barrel's inner wall, resulting in high work efficiency and reduced missed areas. Attached Figure Description

[0032] Figure 1 This is a three-dimensional structural diagram of the wiping device in this application.

[0033] Figure 2 This is a partial structural schematic diagram of the wiping device in this application.

[0034] Figure 3 This is a three-dimensional structural diagram of the rotating shaft and the first wiping head in this application.

[0035] Figure 4This is a three-dimensional structural diagram of the connecting sleeve in this application.

[0036] In the picture:

[0037] 10. Rotary electric motor;

[0038] 20. Rotary shaft; 21. Spline groove;

[0039] 30. First wiping head; 31. First rotating disk; 32. First wiping brush; 33. Splined shaft;

[0040] 40. Sleeve;

[0041] 50. Second wiping head; 51. Second rotating disk; 52. Second wiping brush;

[0042] 60. Transmission structure; 61. Positioning component; 62. Positioning hole; 63. Curved guide groove; 631. Sine ascending curve segment; 632. Sine descending curve segment;

[0043] 70. Connecting sleeve; 71. Connecting hole; 72. Keyway; 73. Sliding slot. Detailed Implementation

[0044] The following will be combined with the appendix Figure 1 -Appendix Figure 4 The technical solutions in the embodiments of this utility model are clearly and completely described herein. The described embodiments are only possible technical implementations of this utility model and not all possible implementations. Those skilled in the art can obtain other embodiments in conjunction with the embodiments of this utility model without creative effort, and these embodiments are also within the protection scope of this utility model.

[0045] Reference Figure 1 and Figure 2 As shown, the wiping device for the inner wall of the electromagnetic gun barrel in this application includes a rotary motor 10 and a rotary shaft 20. One end of the rotary shaft 20 is connected to the output shaft of the rotary motor 10 through a connecting sleeve 70. The other end of the rotary shaft 20 is fixedly connected to a first wiping head 30. A sleeve 40 is slidably sleeved on the outside of the rotary shaft 20. A second wiping head 50 is fixedly connected to the end of the sleeve 40 and is slidably sleeved on the rotary shaft 20. A transmission structure 60 is provided between the rotary shaft 20 and the sleeve 40, and the transmission structure 60 enables the sleeve 40 to move linearly back and forth when the rotary shaft 20 rotates. The first wiping head 30 and the second wiping head 50 are both disc-shaped and are coaxially spaced apart. The outer diameter of the second wiping head 50 is larger than the outer diameter of the first wiping head 30.

[0046] Reference Figure 1 , Figure 2 and Figure 3As shown, the transmission structure 60 in this application includes a positioning element 61, a positioning hole 62 formed on the sleeve 40, and a curved guide groove 63 formed on the outer circumferential surface of the rotating shaft 20. The positioning element 61 can be a pin. The curved guide groove 63 is connected end to end along the circumference of the rotating shaft 20 to form a reciprocating closed groove. The positioning element 61 passes through the positioning hole 62 and is inserted into the curved guide groove 63. Specifically, there are two sets of curved guide grooves 63, which are spaced apart along the axial direction of the rotating shaft 20. There are four positioning elements 61 and four positioning holes 62 in each set of curved guide grooves 63. The two positioning elements 61 and two positioning holes 62 corresponding to each set of curved guide grooves 63 are symmetrically arranged on both sides of the rotating shaft 20. The positioning elements 61 and positioning holes 62 corresponding to different sets of curved guide grooves 63 are staggered. Each set of curved guide grooves 63 includes two sinusoidal rising curve segments 631 and two sinusoidal falling curve segments 632. The sinusoidal rising curve segments 631 and the sinusoidal falling curve segments 632 are connected end to end in sequence, and the connection between the sinusoidal rising curve segments 631 and the sinusoidal falling curve segments 632 is smoothly connected.

[0047] Reference Figure 2 and Figure 3 As shown, the first wiping head 30 in this application includes a first rotating disk 31 and a first wiping brush 32 disposed on the outer peripheral surface of the first rotating disk 31. The first rotating disk 31 has a splined shaft 33 in its middle portion, and the end of the rotating shaft 20 has a splined groove 21 extending axially inward from its end face. The splined shaft 33 of the first rotating disk 31 is inserted into the splined groove 21. The cooperation between the splined shaft 33 of the first rotating disk 31 and the splined groove 21 of the rotating shaft 20 not only ensures that the first wiping head 30 rotates synchronously with the rotating shaft 20, but also enhances the stability of the structure, preventing loosening due to vibration or impact. This ensures a stable and reliable connection between the first wiping head 30 and the rotating shaft 20, maintains stable rotation, and improves wiping efficiency and cleaning effect.

[0048] Reference Figure 1 and Figure 2 As shown, the second wiping head 50 includes a second rotating disk 51 and a second wiping brush 52 disposed on the outer peripheral surface of the second rotating disk 51; the end of the sleeve 40 is welded and fixed to the middle of one side of the second rotating disk 51, or fixed by bolts, or the two are integrally formed. The second wiping head 50 is securely and reliably fixed on the sleeve 40, while ensuring that the first wiping brush 32 on its outer peripheral surface makes uniform contact with the inner wall of the gun barrel, thereby improving the wiping effect.

[0049] Reference Figure 4As shown, the end of the connecting sleeve 70 furthest from the rotary motor 10 has a connecting hole 71. The end of the rotating shaft 20 is inserted into the connecting hole 71. A keyway 72 is provided on the wall of the connecting hole 71. The rotating shaft 20 and the connecting sleeve 70 are circumferentially limited and connected by a snap-fit ​​key that engages in the keyway 72. The end of the connecting sleeve 70 furthest from the rotary motor 10 also has a sliding slot 73. The sliding slot 73 is spaced around the periphery of the connecting hole 71. One end of the sleeve 40 is slidably inserted into the sliding slot 73. This achieves a stable connection between the rotary motor 10 and the rotating shaft 20, while ensuring circumferential synchronous movement between the two. At the same time, it further ensures the stability and reliability of the linear movement of the sleeve 40 when the rotary motor 10 drives the rotating shaft 20 to rotate.

[0050] As an alternative, the transmission structure 60 in this application can also be an external thread on the outer circumferential surface of the rotating shaft 20 and an internal thread on the inner wall of the sleeve 40. The rotating shaft 20 and the sleeve 40 are connected by threaded engagement through the internal and external threads. The rotating motor 10 is a servo motor that can rotate in both directions. The rotating motor 10 rotates intermittently in both directions, driving the rotating shaft 20 and the first wiping head 30 to rotate in both directions, while simultaneously driving the sleeve 40 and the second wiping head 50 to move back and forth in a linear motion.

[0051] The implementation principle is as follows: The inner wall of the electromagnetic gun barrel has rifling. Since the outer diameter of the second wiping head 50 is larger than that of the first wiping head 30, the rifling on the inner wall of the electromagnetic gun barrel will provide greater rotational resistance to the second wiping head 50. When the rotary motor 10 drives the rotary shaft 20 to rotate, causing the first wiping head 30 to rotate and wipe in place, it will drive the sleeve 40 to move linearly back and forth through the transmission structure 60, thereby driving the second wiping head 50 to move back and forth along the barrel axis. In this way, by cooperating with the first wiping head 30 and the second wiping head 50, a large area of ​​the inner wall of the barrel can be cleaned without moving the entire wiping device, resulting in high work efficiency and reducing the phenomenon of missed cleaning.

[0052] The transmission structure 60 designed in this application can effectively distribute the load, improve the stability of the system, increase the reliability of the curved guide groove 63, reduce the impact caused by the wear of a single curved guide groove 63, and ensure that the rotating shaft 20 drives the sleeve 40 to perform stable and efficient linear reciprocating movement when rotating, thereby ensuring that the second wiping head 50 achieves stable and continuous linear reciprocating motion when the rotating shaft 20 rotates.

[0053] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A wiping device for the inner wall of an electromagnetic cannon barrel, comprising a rotating motor (10) and a rotating shaft (20), one end of the rotating shaft (20) being connected with the output shaft of the rotating motor (10); the other end of the rotating shaft (20) being fixedly connected with a first wiping head (30); characterized in that a sleeve (40) is slidably sleeved on the rotating shaft (20), the end of the sleeve (40) being fixedly connected with a second wiping head (50) and the second wiping head (50) being slidably sleeved on the rotating shaft (20), a transmission structure (60) being arranged between the rotating shaft (20) and the sleeve (40) and enabling the rotating shaft (20) to rotate to drive the sleeve (40) to move linearly and reciprocally through the transmission structure (60); the first wiping head (30) and the second wiping head (50) are both disc-shaped and coaxially and spacedly arranged, the outer diameter of the second wiping head (50) being larger than that of the first wiping head (30).

2. The wiping device of the electromagnetic cannon barrel inner wall according to claim 1, characterized in that, the transmission structure (60) comprises a positioning member (61), a positioning hole (62) formed on the sleeve (40) and a curved guide sliding groove (63) formed on the outer circumferential surface of the rotating shaft (20), the curved guide sliding groove (63) being connected in a loop at the ends along the circumference of the rotating shaft (20) to form a circulating and reciprocating closed groove, and the positioning member (61) is inserted into the curved guide sliding groove (63) through the positioning hole (62).

3. The wiping device of the electromagnetic cannon barrel inner wall according to claim 2, characterized in that, there are two groups of the curved guide sliding grooves (63) and they are spacedly arranged along the axial direction of the rotating shaft (20), the number of the positioning members (61) and the positioning holes (62) is both four, each group of the curved guide sliding grooves (63) corresponds to two positioning members (61) and two positioning holes (62), the two positioning members (61) and the two positioning holes (62) corresponding to each group of the curved guide sliding grooves (63) are symmetrically arranged on the two sides of the rotating shaft (20), and the positioning members (61) and the positioning holes (62) corresponding to the curved guide sliding grooves (63) of different groups are staggered arranged.

4. The wiping device of the electromagnetic cannon barrel inner wall according to claim 3, characterized in that, each group of the curved guide sliding grooves (63) comprises two sinusoidal rising curve segments (631) and two sinusoidal falling curve segments (632), the sinusoidal rising curve segments (631) and the sinusoidal falling curve segments (632) are alternately and sequentially connected at the ends, and the sinusoidal rising curve segments (631) and the sinusoidal falling curve segments (632) are smoothly and continuously connected at the joint.

5. The wiping device of the inner wall of the electromagnetic cannon barrel according to claim 1 or 2 or 3 or 4, characterized in that, the first wiping head (30) comprises a first rotating disc (31) and a first wiping brush (32) arranged on the outer circumferential surface of the first rotating disc (31); the middle part of the first rotating disc (31) has a spline shaft (33), the end of the rotating shaft (20) has a spline groove (21) extending inwardly along the axial direction from the end face, and the spline shaft (33) of the first rotating disc (31) is inserted into the spline groove (21).

6. The wiping device of the inner wall of the electromagnetic cannon barrel according to claim 1 or 2 or 3 or 4, characterized in that, The second wiping head (50) comprises a second rotating disc (51) and a second wiping brush (52) arranged on the outer circumferential surface of the second rotating disc (51); the end of the sleeve (40) is welded, fixedly connected or integrally formed with the middle of one side of the second rotating disc (51).

7. The wiping device of the electromagnetic cannon barrel inner wall according to claim 1, characterized in that, The output shaft of the rotating motor (10) is fixedly connected with a connecting sleeve (70), one end of the connecting sleeve (70) away from the rotating motor (10) is provided with a connecting hole (71), the end of the rotating shaft (20) is inserted into the connecting hole (71), the hole wall of the connecting hole (71) is provided with a key groove (72), and the rotating shaft (20) and the connecting sleeve (70) are circumferentially limited and connected through the clamping keys clamped in the key groove (72).

8. The wiping device of the electromagnetic cannon barrel inner wall according to claim 7, characterized in that, The end of the connecting sleeve (70) away from the rotating motor (10) is also provided with a sliding insertion groove (73), the sliding insertion groove (73) is spaced and surrounds the periphery of the connecting hole (71), and one end of the sleeve (40) is slidingly inserted into the sliding insertion groove (73).

Images