A disassembly and assembly tool for magnetic plug

Abstract

The present invention discloses a disassembly and assembly tool for a magnetic plug, comprising a rotating shaft, a sleeve, a cartridge and a grabbing mechanism for grabbing the magnetic plug, the sleeve and the cartridge are connected, one end of the rotating shaft passes through the interior of the sleeve and extends into the interior of the cartridge and is connected to the grabbing mechanism inside the cartridge. The present invention has a reasonable structure and is easy to use, and the magnetic plug can be quickly disassembled through the cooperation of the rotating shaft, the sleeve, the cartridge and the grabbing mechanism.

Description

Technical Field

[0001] The invention relates to the technical field of magnetic plugs, and in particular to a disassembly and assembly tool for magnetic plugs. Background Art

[0002] The magnetic plug is applied to the inside of the channel 17 on the side of the high-speed rotating shaft base of the helicopter, and mainly includes a pull ring 18, a magnetic plug cap 19, a fixing pin 20, a sealing ring 24 and a strong magnet 21. When in use, the fixing pin is placed in the L-shaped groove 22 in the channel, and then the fixing pin is rotated and lifted to make it snap into the slot 23 at the end of the L-shaped groove. The sealing ring blocks the channel, and the iron filings that fall into the lubricating oil during the rotation of the shaft are removed by a strong magnet. Then the magnetic plug is regularly plugged in and out to remove the adsorbed iron filings to ensure its reliability in use. However, during the process of plugging in and out the magnetic plug, pipelines are arranged near the channel, and it is almost impossible to put your hands in to operate it. Due to the setting of the pipeline, it is impossible for people to apply force normally to install the magnetic plug. In addition, the equipment will heat up after running for a period of time, which may scald the operator. At the same time, the sealing ring will expand due to the heat, making it more difficult to pull out the magnetic plug. The entire operation process is complicated and the disassembly and assembly efficiency is very low. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a magnetic plug disassembly and assembly tool which has a reasonable structure, is easy to use and can quickly disassemble and assemble the magnetic plug.

[0004] To achieve the above objectives, the technical solution of the present invention is: a disassembly and assembly tool for a magnetic plug, characterized in that it includes a rotating shaft, a sleeve, a chuck and a grabbing mechanism for grabbing the magnetic plug, the sleeve and the chuck are connected, one end of the rotating shaft passes through the interior of the sleeve and extends into the interior of the chuck and is connected to the grabbing mechanism inside the chuck.

[0005] Furthermore, the grabbing mechanism includes a push head and an elastic chuck, one end of the push head is connected to the rotating shaft, and the other end is connected to the elastic chuck, the outer surface of the push head is provided with an external thread matching the internal thread of the cartridge, the surface of the elastic chuck away from the push head is provided with an annular boss, the end of the cartridge is a gradually shrinking structure, the outer surface of the cartridge is provided with a transverse groove I from one side surface and sequentially passing through the annular boss to the other side surface of the cartridge, and the outer surface of the annular boss is provided with a transverse groove II from one side surface to the other side surface.

[0006] Furthermore, the cross section at the end of the transverse groove I and the cross section of the transverse groove II are both arc-shaped.

[0007] Furthermore, an anti-wear lining is provided between the push head and the elastic clamping head.

[0008] Furthermore, a grip tube is provided on the surface of the sleeve, and a handle is provided on the rotating shaft.

[0009] Furthermore, a groove is arranged on the side surface of the elastic collet, and the end of the screw arranged on the side surface of the cartridge extends into the groove.

[0010] Furthermore, the gradually tapering structure of the end of the cartridge is composed of a wedge-shaped cartridge and a connecting screw. The wedge-shaped cartridge is arranged around the end of the cartridge, and the wedge-shaped cartridge is connected to the end of the cartridge via the connecting screw.

[0011] Compared with the prior art, the present invention has the following advantages:

[0012] 1. Reasonable structure, easy to use, the magnetic plug can be quickly disassembled through the cooperation of the rotating shaft, sleeve, cartridge and grabbing mechanism.

[0013] 2. An anti-wear lining is provided between the push head and the elastic collet, which effectively reduces the friction between the push head and the elastic collet during rotation and prolongs the service life of the elastic collet.

[0014] 3. The end of the screw arranged on the side surface of the cartridge extends into the groove, which effectively limits the feeding position of the elastic collet, thereby preventing the push head from slipping out of the inner thread of the cartridge.

[0015] 4. The push head and the cartridge are connected by threads. The threaded connection can effectively and accurately control the feed distance of the push head, so that the elastic chuck can slowly clamp the magnetic plug cap and prevent the magnetic plug cap from loosening. At the same time, the threaded connection can locate the position of the push head, which can effectively prevent the push head from being pushed when the elastic chuck is supported by the wedge-shaped chuck and exerts a reverse force on the push head. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a stereogram of a channel in the prior art;

[0017] Figure 2 It is the main view of the channel in the prior art;

[0018] Figure 3 It is a structural schematic diagram of a magnetic plug in the prior art;

[0019] Figure 4 It is a structural schematic diagram of the present invention;

[0020] Figure 5 for Figure 4 A partial enlarged view of

[0021] Figure 6 This is the main view of the magnetic plug;

[0022] Figure 7 for Figure 6 A cross-sectional view of

[0023] Figure 8 for Figure 6A top view of

[0024] Fig. 9 It is the front view of the wedge-shaped clamp;

[0025] Fig.10 for Fig. 9 sectional view of .

[0026] Description of the drawings: 1. Rotating shaft, 2. Sleeve, 3. Cardan, 4. Grasping mechanism, 5. Wedge-shaped cardan, 6. Push head, 7. Elastic cardan, 8. Transverse groove I, 9. Transverse groove II, 10. Arc, 11. Anti-wear lining, 12. Grip tube, 13. Handle, 14. Groove, 15. Screw, 16. Annular boss, 17. Channel, 18. Pull ring, 19. Magnetic plug cap, 20. Fixing pin, 21. Strong magnet, 22. L-shaped groove, 23. Card slot, 24. Sealing ring. DETAILED DESCRIPTION

[0027] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0028] The technical solution is described in detail in conjunction with the accompanying drawings. A disassembly and assembly tool for a magnetic plug includes a rotating shaft 1, a sleeve 2, a cartridge 3 and a grabbing mechanism 4 for grabbing the magnetic plug. The sleeve and the cartridge are connected so that the sleeve and the interior of the cartridge are communicated. One end of the rotating shaft passes through the interior of the sleeve and extends into the interior of the cartridge and is connected to the grabbing mechanism inside the cartridge. When in use, the magnetic plug is separated from the card slot by the grabbing mechanism and then rotated to pull the magnetic plug out. Specifically, the grabbing mechanism includes a push head 6 and an elastic chuck 7. The elastic chuck can be made of a material with good elasticity such as nylon. One end of the push head is connected to the rotating shaft. The push head can be detachably connected to the rotating shaft by a key connection or the like, or the two can be directly fixedly connected. The other end of the push head is The outer surface of the annular boss is provided with a transverse groove Ⅰ8 which runs from one side of the sleeve surface and sequentially passes through the annular boss to the other side of the sleeve surface. The outer surface of the annular boss is provided with a transverse groove Ⅱ9 which runs from one side of the sleeve surface to the other side of the sleeve surface. When the grasping mechanism needs to grasp the magnetic plug, the manual hand holds the sleeve and the other hand holds the rotating shaft, and then rotates the rotating shaft. In order to facilitate manual operation, the sleeve A grip 12 is provided on the surface, and a handle 13 is provided on the rotating shaft, which is convenient for manual grasping and rotation of the rotating shaft. When the sleeve is manually held, the cartridge passes through the pipeline arranged near the channel and reaches the magnetic plug installation position, and then the cartridge is extended forward to clamp the pull ring of the magnetic plug into the transverse groove Ⅰ, and the magnetic plug cap extends from the end of the cartridge into the annular boss, and then the rotating shaft is rotated, and the rotating shaft drives the push head to rotate, and the push head feeds forward, and the push head pushes the elastic chuck to move toward the direction of the magnetic plug cap. When the elastic chuck moves, the annular boss is resisted by the shrinking structure at the end of the cartridge, and then it cannot be fed, thereby generating elastic deformation to clamp the magnetic plug cap, and then the rotating shaft is rotated and the sleeve is fed downward, and the push head pushes the elastic chuck, and the elastic chuck After the end of the sleeve contacts the magnetic plug cap, it applies downward pressure to the magnetic plug cap. At the same time, combined with the downward movement of the sleeve, it applies downward pressure to the magnetic plug cap, causing the magnetic plug cap to move downward, disengaging the fixing pin from the slot, and then rotating the sleeve to cause the cartridge to rotate, driving the magnetic plug cap to rotate out of the horizontal slot of the L-shaped slot, and then pulling the sleeve to separate the magnetic plug from the L-shaped slot, completing the disassembly of the magnetic plug from the channel. After the magnetic plug is separated from the channel, the rotating shaft is rotated in the opposite direction to feed the push head toward the direction of the gripping barrel. The pressure of the push head on the elastic collet gradually decreases, the elastic collet is reset, and the shrinkage structure at the end of the cartridge no longer presses against the annular boss. After the shape of the annular boss is restored, the magnetic plug falls out of the cartridge, and finally the disassembly of the magnetic plug is completed.

[0029] When the elastic chuck is pushed by the push head and the annular boss is resisted by the shrinkage structure at the end of the cartridge, the two are deformed as a whole. In order to prevent the stress concentration of the notches of the transverse groove I and the transverse groove II, resulting in the tearing of the notches, the cross-sections at the end of the transverse groove I and the cross-sections of the transverse groove II are both set to an arc 10. The arc effectively shares the stress concentration phenomenon and prevents the tearing of the notches. An anti-wear lining 11 is provided between the push head and the elastic chuck to effectively reduce the friction between the push head and the elastic chuck during rotation. A groove 14 is provided on the side surface of the elastic chuck. The end of the screw 15 provided on the side surface of the cartridge extends into the groove. The position of the feed of the elastic chuck is effectively limited by the limiting screw, thereby preventing the push head from slipping out of the internal thread of the cartridge. The gradually shrinking structure at the end of the cartridge is composed of a wedge-shaped chuck 5 and a connecting screw. The wedge-shaped chuck ring is arranged around the end of the cartridge, and the wedge-shaped chuck is connected to the end of the cartridge by a connecting screw.

[0030] The gradually tapering structure at the end of the cartridge is composed of a wedge-shaped cartridge 5 and connecting screws. The wedge-shaped cartridge ring is arranged around the end of the cartridge, and the wedge-shaped cartridge is connected to the end of the cartridge by connecting screws. By setting a detachable tapering structure, the production and assembly of the entire equipment are facilitated.

[0031] The basic principles, main features and advantages of the present invention are shown and described above. Without departing from the spirit and scope of the present invention, the present invention may also be subject to various changes and improvements, which all fall within the scope of the present invention to be protected.

Claims

1. A disassembly and assembly tool for a magnetic plug, characterized in that: It includes a rotating shaft, a sleeve, a cartridge and a grabbing mechanism for grabbing a magnetic plug, the sleeve and the cartridge are connected, one end of the rotating shaft passes through the interior of the sleeve and extends into the interior of the cartridge and is connected to the grabbing mechanism inside the cartridge; the grabbing mechanism includes a push head and an elastic chuck, one end of the push head is connected to the rotating shaft, and the other end is connected to the elastic chuck, the outer surface of the push head is provided with an external thread matching the internal thread of the cartridge, the surface of the elastic chuck away from the push head is provided with an annular boss, the end of the cartridge is a gradually shrinking structure, the outer surface of the cartridge is provided with a transverse groove I from one side surface thereof and sequentially penetrating the annular boss to the other side surface of the cartridge, and the outer surface of the annular boss is provided with a transverse groove II penetrating from one side surface thereof to the other side surface; A grip is provided on the surface of the sleeve, and a handle is provided on the rotating shaft; The method for grasping the magnetic plug with the disassembly and assembly tool is as follows: hold the sleeve, and the cartridge passes through the pipeline arranged near the channel. When it reaches the magnetic plug installation location, extend the cartridge forward, clamp the pull ring of the magnetic plug into the transverse groove I, and the magnetic plug cap extends from the end of the cartridge into the annular boss. Rotate the shaft, and the shaft drives the push head to rotate. The push head feeds forward, and the push head pushes the elastic collet to move toward the magnetic plug cap. The elastic collet moves, and the annular boss is resisted by the shrinkage structure at the end of the cartridge, and then cannot be fed, thereby generating elastic deformation to clamp the magnetic plug cap. Rotate the shaft and feed the sleeve downward, and the push head pushes the elastic collet. The end of the elastic collet is aligned with the magnetic plug. After the cap contacts, downward pressure is applied to the magnetic plug cap. At the same time, combined with the downward movement of the sleeve, downward pressure is applied to the magnetic plug cap. The magnetic plug cap moves downward, the fixing pin disengages from the slot, and the sleeve is rotated to rotate the cartridge, driving the magnetic plug cap to rotate out of the horizontal slot of the L-shaped slot. The sleeve is pulled, the magnetic plug is separated from the L-shaped slot, and the magnetic plug is disassembled from the channel. The magnetic plug is separated from the channel, and the shaft is rotated in the reverse direction. The push head feeds in the direction of the holding cartridge, and the pressure of the push head on the elastic collet gradually decreases. The elastic collet is reset, and the shrinkage structure at the end of the cartridge no longer presses against the annular boss. After the shape of the annular boss is restored, the magnetic plug falls out of the cartridge, completing the removal of the magnetic plug.

2. A magnetic plug disassembly and assembly tool according to claim 1, characterized in that: The cross section at the end of transverse groove I and the cross section of transverse groove II are both arc-shaped.

3. A magnetic plug disassembly and assembly tool according to claim 1, characterized in that: An anti-wear lining is arranged between the push head and the elastic clamping head.

4. A magnetic plug disassembly and assembly tool according to claim 1, characterized in that: A groove is arranged on the side surface of the elastic chuck, and the end of the screw arranged on the side surface of the cartridge extends into the groove.

5. A magnetic plug disassembly and assembly tool according to claim 1, characterized in that: The gradually shrinking structure of the end of the cartridge is composed of a wedge-shaped cartridge and a connecting screw. The wedge-shaped cartridge is arranged around the end of the cartridge, and the wedge-shaped cartridge is connected to the end of the cartridge through the connecting screw.

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