A tube straightening device for aircraft landing gear

Abstract

The present invention relates to the field of aircraft parts processing, specifically a tube billet straightening device for aircraft landing gear, comprising a base, and also comprising a first conduction roller group, a second conduction roller group, an electric heating coil, a cleaning cooling mechanism and a lower support plate arranged on the base, a gantry is fixed on the base, and a pump wheel and an upper pressure plate are arranged on the gantry, the pump wheel is connected to the cleaning cooling mechanism through an air pipe, and the pump wheel is respectively connected to the first conduction roller group, the second conduction roller group, the cleaning cooling mechanism and the upper pressure plate in transmission, the first conduction roller group and the second conduction roller group have the same structure, the lower support plate and the upper pressure plate are adapted and are cylindrical after being matched. This tube billet straightening device for aircraft landing gear can straighten and adjust the entire section of the tube billet, the whole process does not require manual control, the operation is safe and reliable, and cooling and cooling can be achieved while cleaning the surface of the tube billet, reducing labor costs and ensuring the straightening and adjustment effect.

Description

Technical Field

[0001] The invention relates to the field of aircraft parts processing, in particular to a tube blank straightening device used for aircraft landing gear. Background Art

[0002] The landing gear tube blanks of aircraft are usually hollow. After production and forming, they will have local bending deformation due to internal stress and external processing operations. Therefore, it is necessary to straighten and adjust the straightness of these formed landing gear tube blanks. In view of this, we propose a tube blank straightening device for aircraft landing gear. Summary of the invention

[0003] The purpose of the present invention is to provide a tube billet straightening device for aircraft landing gear to solve the problems raised in the above background technology. To achieve the above purpose, the present invention provides the following technical solutions: a tube billet straightening device for aircraft landing gear, comprising a base, and also comprising a first conductive roller group, a second conductive roller group, an electric heating coil, a cleaning cooling mechanism and a lower support plate arranged on the base, a gantry is fixed on the base, and a pump wheel and an upper pressure plate are arranged on the gantry, and the pump wheel is connected to the cleaning cooling mechanism through an air pipe, and the pump wheel is respectively connected to the first conductive roller group, the second conductive roller group, the cleaning cooling mechanism, and the upper pressure plate in transmission, the first conductive roller group and the second conductive roller group have the same structure, the lower support plate and the upper pressure plate are adapted and matched and are cylindrical after being matched, and the cylindrical tube and the electric heating coil share the same central axis.

[0004] Preferably, the electric heating coil, the lower support plate and the cleaning cooling mechanism are located between the first conduction roller group and the second conduction roller group, the electric heating coil is located between the first conduction roller group and the lower support plate, and the cleaning cooling mechanism is located between the lower support plate and the second conduction roller group.

[0005] Preferably, a suspension rod 1 is fixed on the gantry, the pump wheel is fixed on the suspension rod 1, a half-shaft is extended from each end of the impeller shaft in the pump wheel, and the two half-shafts are fixedly rotatably connected to the suspension rod 1, and the ends of the two half-shafts are coaxially and fixedly connected to the turntable and pulley 1.

[0006] Preferably, a second suspension rod is fixed on the gantry, and a first connecting rod and a second connecting rod are slidably connected to the second suspension rod, and the first connecting rod and the second connecting rod are arranged in upper and lower positions and in a straight line.

[0007] Preferably, a slide is fixed to the upper end of the connecting rod one, a pin is hinged on the turntable at a position away from the center of the circle, the pin is inserted and slidably connected to the slide, the lower end of the connecting rod one is fixedly connected to the upper end of the frame, the upper end of the connecting rod two is fixedly connected to the lower end of the frame, and the lower end of the connecting rod two is fixedly connected to the upper pressure plate.

[0008] Preferably, the second conduction roller group includes a roller frame fixed on a base, and two grooved rollers are rotatably connected to the roller frame on a fixed axis. The two grooved rollers are arranged at upper and lower positions and contact each other. The circular holes formed by the annular grooves at the contact positions of the two grooved rollers are adapted to the tube blank. The two grooved rollers are connected through a pulley assembly, and the transmission belt on the pulley assembly is arranged in an "8" shape.

[0009] Preferably, two cantilevers are fixed on the gantry, and the two cantilevers are respectively located above the first conduction roller group and the second conduction roller group. A ratchet is arranged in the frame, and the center of the inner ring of the ratchet is vertical and penetrated by an axle rod one, and the two ends of the axle rod one are respectively connected to the two cantilevers for fixed-axis rotation, and a rack is fixed on one of the vertical frame frames on the inner side of the frame, and the outer ring of the ratchet is meshed with the rack.

[0010] Preferably, both of the cantilevers are connected to a fixed axis rotationally with shaft rod two, and shaft rod two is arranged perpendicular to shaft rod one, the upper end of shaft rod two is transmission connected to the corresponding end of shaft rod one through bevel gear set one, and the lower end of shaft rod two is transmission connected to the corresponding groove roller at the upper end of the roller frame through bevel gear set two.

[0011] Preferably, the cleaning cooling mechanism includes an annular groove, the central axis of the annular groove coincides with the central axis of the cylindrical tube formed by the lower support plate and the upper pressure plate, an air pipe is fixed and connected to the peripheral wall of the pump wheel, and the air outlet end of the air pipe is connected to the interior of the annular groove.

[0012] Preferably, a swivel is connected to the inner opening of the annular groove for fixed-axis rotation, and a brush strip is fixed on the inner wall of the swivel. A plurality of air holes are opened on the inner wall of the swivel, and the air holes are connected to the inside of the annular groove. A convex ring is coaxially fixedly connected to one side of the swivel, and the convex ring is connected to a pulley through a belt.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] In the present invention, the first conduction roller group and the second conduction roller group are driven by the pump wheel to work, and the tube blanks are intermittently transported, so that the tube blanks can be completely straightened and adjusted, thereby maintaining the entire process without manual control, and the operation is safe and reliable. The pump wheel drives the upper pressure plate to pressurize and straighten the tube blank, and the tube blank remains stationary when the upper pressure plate is pressed downward, thereby ensuring the straightening effect of the tube blank.

[0015] In the present invention, the pump wheel drives the first conduction roller group and the second conduction roller group to convey the tube billet while driving the cleaning and cooling mechanism to clean the dandruff and debris on the surface of the straightened tube billet, thereby reducing labor costs, being safe and reliable, and achieving cooling while cleaning the surface of the tube billet, thereby maintaining the strength of the straightened tube billet and ensuring the straightening adjustment effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the general assembly structure of the present invention;

[0017] Figure 2 for Figure 1 A is an enlarged structural diagram;

[0018] Figure 3 It is a side view of the frame, ratchet and turntable structure of the present invention;

[0019] Figure 4 It is a side view of the conductive roller group structure in the present invention.

[0020] In the figure: 1. base; 2. gantry; 3. pump wheel; 4. suspension rod 1; 5. turntable; 6. pulley 1; 7. suspension rod 2; 8. frame; 9. ratchet; 10. upper pressure plate; 11. lower support plate; 12. electric heating coil; 13. shaft rod 1; 14. cantilever; 15. shaft rod 2; 16. roller frame; 17. groove roller; 18. pulley assembly; 19. pin rod; 20. slide; 21. connecting rod 1; 22. connecting rod 2; 23. rack; 24. air pipe; 25. belt; 26. convex ring; 27. ring groove; 28. swivel; 29. ​​brush strip; 30. air hole; 31. bevel gear set 1; 32. bevel gear set 2; 33. first conduction roller set; 34. second conduction roller set; 35. round hole. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technical personnel in this field without creative work are within the scope of protection of the present invention.

[0022] See also Figures 1 to 4The present invention provides a technical solution: a tube straightening device for aircraft landing gear, comprising a base 1, and also comprising a first conduction roller group 33, a second conduction roller group 34, an electric heating coil 12, a cleaning cooling mechanism and a lower support plate 11 arranged on the base 1, a gantry 2 is fixed on the base 1, and a pump wheel 3 and an upper pressing plate 10 are arranged on the gantry 2, and the pump wheel 3 is connected with the cleaning cooling mechanism through an air pipe 24, and the pump wheel 3 is respectively connected with the first conduction roller group 33, the second conduction roller group 34, the cleaning cooling mechanism, and the upper pressing plate 10, and the first conduction roller group 33 and the second conduction roller group 34 have exactly the same structure. The lower support plate 11 and the upper pressing plate 10 are adapted to each other and are cylindrical after being matched. The electric heating coil 12, the lower support plate 11 and the cleaning and cooling mechanism are located between the first conduction roller group 33 and the second conduction roller group 34. The electric heating coil 12 is located between the first conduction roller group 33 and the lower support plate 11. The cleaning and cooling mechanism is located between the lower support plate 11 and the second conduction roller group 34. The spacing between the first conduction roller group 33 and the second conduction roller group 34 is smaller than the length of the tube blank to be straightened to ensure that during the transportation of the tube blank, after the tail end of the tube blank is separated from the first conduction roller group 33, the head end of the tube blank is inserted into the second conduction roller group 34.

[0023] In this embodiment, a suspension rod 4 is fixed on the gantry 2, and the pump wheel 3 is fixed on the suspension rod 4. A half-shaft is extended from each end of the impeller shaft in the pump wheel 3, and the two half-shafts are fixedly connected to the suspension rod 4, and the ends of the two half-shafts are coaxially and fixedly connected to the turntable 5 and the pulley 6.

[0024] In this embodiment, a second suspension rod 7 is fixed on the gantry 2, and a first connecting rod 21 and a second connecting rod 22 are slidably connected to the second suspension rod 7. The first connecting rod 21 and the second connecting rod 22 are arranged in upper and lower positions and in a straight line.

[0025] In this embodiment, a slide 20 is fixed to the upper end of the connecting rod 21, and a pin rod 19 is hinged at a position away from the center of the turntable 5. The pin rod 19 is inserted and slidably connected to the slide 20. The lower end of the connecting rod 21 is fixedly connected to the upper end of the frame 8, the upper end of the connecting rod 22 is fixedly connected to the lower end of the frame 8, and the lower end of the connecting rod 22 is fixedly connected to the upper pressure plate 10.

[0026] In this embodiment, the second conduction roller group 34 includes a roller frame 16 fixed on the base 1, and two grooved rollers 17 are connected to the roller frame 16 for rotation on a fixed axis. The two grooved rollers 17 are arranged at upper and lower positions and contact each other. The circular holes 35 formed by the annular grooves at the contact positions of the two grooved rollers 17 are adapted to the tube blank. The two grooved rollers 17 are connected through a pulley assembly 18, and the transmission belt on the pulley assembly 18 is arranged in an "8" shape. Two cantilevers 14 are fixed on the gantry 2, and the two cantilevers 14 are respectively located above the first conduction roller group 33 and the second conduction roller group 34. A ratchet 9 is arranged in the frame 8. The center of the inner ring of the ratchet 9 is vertical and penetrated by an axle rod 13, and the two ends of the axle rod 13 are respectively connected to the two cantilevers 14 for fixed-axis rotation. A rack 23 is fixed on one of the vertical frames on the inner side of the frame 8, and the outer ring of the ratchet 9 is meshed with the rack 23. The two cantilevers 14 are both connected to an axle rod 2 for fixed-axis rotation, and the axle rod 2 15 is arranged perpendicular to the axle rod 13. The upper end of the axle rod 2 15 is connected to the corresponding end of the axle rod 13 through a bevel gear set 31, and the lower end of the axle rod 15 is connected to the corresponding groove roller 17 at the upper end of the roller frame 16 through a bevel gear set 32.

[0027] In this embodiment, the cleaning and cooling mechanism includes an annular groove 27, and the central axis of the annular groove 27 coincides with the central axis of the cylindrical tube formed by the lower support plate 11 and the upper pressure plate 10. The air pipe 24 is fixed and connected to the peripheral wall of the pump wheel 3, and the air outlet end of the air pipe 24 is connected to the interior of the annular groove 27. The inner opening of the annular groove 27 is connected to a swivel 28 for fixed-axis rotation, and a brush strip 29 is fixed on the inner side wall of the swivel 28. A plurality of air holes 30 are opened on the inner side wall of the swivel 28, and the air holes 30 are connected to the interior of the annular groove 27. A convex ring 26 is coaxially fixedly connected to one side of the swivel 28, and the convex ring 26 is connected to the pulley 16 through a belt 25.

[0028] Working principle and advantages of the present invention: When the tube straightening device for aircraft landing gear is used, the working process is as follows:

[0029] like Figure 1 and Figure 4 As shown, the tube blank that needs to be straightened and adjusted is inserted from the left side of the first conductive roller group 33 into the circular hole 35 formed by the two grooved rollers 17, and the pump wheel 3 is started to work, so that the impeller shaft in the pump wheel 3 synchronously drives the two half shafts to rotate, so that the two half shafts synchronously drive the turntable 5 and the pulley 6 to rotate, as shown in FIG. Figure 3As shown, while the turntable 5 rotates, the pin 19 and the slide 20 drive the connecting rod 1 21, the frame 8, the connecting rod 22 and the upper pressing plate 10 to move up and down. When the frame 8 moves down, it synchronously drives the rack 23 to move down, so that the rack 23 drives the outer ring of the ratchet 9 to rotate counterclockwise. At this time, the outer ring of the ratchet 9 cannot drive the inner ring to rotate through the pawl, thereby not driving the shaft rod 13 to rotate. That is, when the frame 8 and the upper pressing plate 10 move down, the first conductive roller group 33 and the second conductive roller group 34 do not transport the tube blank. When the frame 8 moves up, It synchronously drives the rack 23 to move upward, so that the rack 23 drives the outer ring of the ratchet 9 to rotate clockwise. At this time, the outer ring of the ratchet 9 can drive the inner ring to rotate synchronously clockwise through the pawl, so that the inner ring drives the shaft rod 13 to rotate, and then the shaft rod 13 drives the two shaft rods 15 to rotate synchronously through the bevel gear set 1 31, so that the shaft rod 15 drives the corresponding groove roller 17 to rotate through the bevel gear set 2 32, so that the first conduction roller set 33 and the second conduction roller set 34 convey the tube blank, thereby realizing intermittent conveying of the tube blank.

[0030] As described above, as the tube billet is gradually conveyed, when the tube billet enters the electric heating coil 12, the electric heating coil 12 is used to heat the tube billet so that the stress in the tube billet is released and it is convenient for subsequent straightening. When the heated tube billet segment enters the lower support plate 11, the upper pressing plate 10 is pressed downward, so that the tube billet is straightened, and the tube billet remains stationary when the upper pressing plate 10 is pressed downward, thereby ensuring the straightening effect of the tube billet.

[0031] As mentioned above, the belt pulley 6 rotates and drives the convex ring 26 to rotate through the belt 25. Figure 2 As shown, after the convex ring 26 rotates, it synchronously drives the swivel 28 to rotate, so that the swivel 28 drives the brush strip 29 to rotate. When the straightened tube blank section enters the swivel 28, the brush strip 29 is used to clean the dandruff and debris on the surface of the tube blank, thereby reducing labor costs and being safe and reliable.

[0032] When the pump wheel 3 is working, air is transported to the annular groove 27 through the air pipe 24, and then blown to the surface of the tube through the air hole 30 on the rotating ring 28, so as to clean the surface of the tube and cool it down at the same time, thereby maintaining the strength of the straightened tube and ensuring the straightening adjustment effect.

[0033] As the tube billet is conveyed, when the straightened and cooled end of the tube billet enters the circular hole 35 formed by the two grooved rollers 17 in the second conduction roller group 34, the second conduction roller group 34 is used to convey the tube billet, so that when the tube billet leaves the first conduction roller group 33, it can continue to be conveyed so as to straighten and adjust the tail of the tube billet, thereby ensuring that the entire process does not require manual control and the operation is safe and reliable.

[0034] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0035] In the description of the present invention, unless otherwise specified, "plurality" means two or more than two; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0036] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A tube straightening device for aircraft landing gear, comprising a base (1), characterized in that: It also includes a first conductive roller group (33), a second conductive roller group (34), an electric heating coil (12), a cleaning cooling mechanism and a lower support plate (11) arranged on a base (1); a gantry (2) is fixed on the base (1), and a pump wheel (3) and an upper pressing plate (10) are arranged on the gantry (2); the pump wheel (3) is connected to the cleaning cooling mechanism through an air pipe (24); the pump wheel (3) is respectively connected to the first conductive roller group (33), the second conductive roller group (34), the cleaning cooling mechanism and the upper pressing plate (10); the first conductive roller group (33) and the second conductive roller group (34) are completely identical in structure; the lower support plate (11) and the upper pressing plate (10) are matched and are cylindrical when matched; The electric heating coil (12), the lower support plate (11) and the cleaning cooling mechanism are located between the first conductive roller group (33) and the second conductive roller group (34); the electric heating coil (12) is located between the first conductive roller group (33) and the lower support plate (11); and the cleaning cooling mechanism is located between the lower support plate (11) and the second conductive roller group (34); A suspension rod (4) is fixed on the gantry (2), the pump wheel (3) is fixed on the suspension rod (4), a half-shaft is extended from each end of the impeller shaft in the pump wheel (3), and the two half-shafts are fixedly connected to the suspension rod (4), and the ends of the two half-shafts are coaxially and fixedly connected to the turntable (5) and the pulley (6); A second suspension rod (7) is fixed on the gantry (2), and a first connecting rod (21) and a second connecting rod (22) are slidably connected to the second suspension rod (7), and the first connecting rod (21) and the second connecting rod (22) are arranged in an upper and lower position and in a straight line; The upper end of the connecting rod 1 (21) is fixed with a slide (20), a pin rod (19) is hinged on a position of the turntable (5) away from the center of the circle, the pin rod (19) is plugged and slidably connected to the slide (20), the lower end of the connecting rod 1 (21) is fixedly connected to the upper end of the frame (8), the upper end of the connecting rod 2 (22) is fixedly connected to the lower end of the frame (8), and the lower end of the connecting rod 2 (22) is fixedly connected to the upper pressure plate (10); The second conductive roller group (34) comprises a roller frame (16) fixed on the base (1), two grooved rollers (17) being rotatably connected to the roller frame (16) via a fixed axis, the two grooved rollers (17) being arranged at upper and lower positions and contacting each other, the circular holes (35) formed by the annular grooves at the contact positions of the two grooved rollers (17) being adapted to the tube blank, the two grooved rollers (17) being connected in transmission via a pulley assembly (18), and the transmission belt on the pulley assembly (18) being arranged in the shape of an "8"; The cleaning and cooling mechanism comprises an annular groove (27), the central axis of the annular groove (27) coincides with the central axis of a cylindrical tube formed by the lower support plate (11) and the upper pressure plate (10), an air pipe (24) is fixed on and connected to the peripheral wall of the pump wheel (3), and an air outlet end of the air pipe (24) is connected to the interior of the annular groove (27).

2. The tube straightening device for aircraft landing gear according to claim 1, characterized in that: Two cantilevers (14) are fixed on the gantry (2), and the two cantilevers (14) are respectively located above the first conductive roller group (33) and the second conductive roller group (34). A ratchet (9) is arranged in the frame (8), and the center of the inner ring of the ratchet (9) is vertical and penetrated by a shaft rod (13), and the two ends of the shaft rod (13) are respectively connected to the two cantilevers (14) in a fixed axis rotation manner. A rack (23) is fixed on one of the vertical frames on the inner side of the frame (8), and the outer ring of the ratchet (9) is meshed and connected with the rack (23).

3. The tube straightening device for aircraft landing gear according to claim 2, characterized in that: The two cantilevers (14) are both rotatably connected to a second shaft rod (15), and the second shaft rod (15) is arranged perpendicular to the first shaft rod (13). The upper end of the second shaft rod (15) is transmission-connected to the corresponding end of the first shaft rod (13) through a bevel gear set (31), and the lower end of the second shaft rod (15) is transmission-connected to the grooved roller (17) at the upper end of the corresponding roller frame (16) through a bevel gear set (32).

4. The tube straightening device for aircraft landing gear according to claim 1, characterized in that: The inner opening of the annular groove (27) is connected to a rotating ring (28) in a fixed axis rotation manner, and a brush strip (29) is fixed on the inner wall of the rotating ring (28). A plurality of air holes (30) are opened on the inner wall of the rotating ring (28), and the air holes (30) are connected to the inside of the annular groove (27). A convex ring (26) is coaxially fixedly connected to one side of the rotating ring (28), and the convex ring (26) is connected to a pulley (6) through a belt (25).

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