Airplane wheel transfer trolley

Abstract

The utility model relates to the technical field of ground maintenance of aircrafts, and discloses an airplane wheel transfer trolley which is arranged in the scheme, and a lifting frame capable of lifting is arranged on the transfer trolley, so that airplane wheels are convenient to load and unload; by means of the protection frames arranged on the two sides of the transfer trolley, airplane wheels located on the lifting frames are supported and restrained, and the situation that the airplane wheels topple over in the transfer process is well avoided; meanwhile, the transfer trolley is adopted for transferring the airplane wheels, so that the labor intensity of airport workers is greatly reduced, the workers can have more energy and physical strength to work, and the safety in the airplane wheel transfer process is ensured (the situation that the workers are injured by crashing or airplane wheel assemblies and equipment in the airport are damaged due to the fact that the airplane wheels topple over is prevented); and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of aircraft ground maintenance, in particular to an aircraft wheel transfer vehicle. Background Art

[0002] Airports undergo a massive daily tire replacement process. In winter, the aprons are often covered in ice and snow, making wheel pushing even more challenging. During short aircraft stops, wheels need to be quickly replaced, and a tipping wheel can significantly impact flight punctuality. If a tipping wheel injures a worker or damages the aircraft structure, it could be a dangerous incident, further increasing pressure on production safety.

[0003] Currently, wheels are mostly transported by pushing them manually. However, when a wheel weighing more than 150 kilograms is pushed forward on the apron, the replaced wheel may have tilted or irregular treads. If you are not careful, the wheel may roll over due to uneven force, causing safety accidents such as injuries to staff and on-site equipment. Utility Model Content

[0004] The purpose of the utility model is to provide a machine wheel transfer vehicle, which is used to solve the problem in the prior art that the machine wheels are transferred manually, resulting in safety accidents that are likely to occur during the transfer process.

[0005] In order to achieve the above objectives, an embodiment of the present application provides a wheel transfer vehicle having a first direction and a second direction, comprising:

[0006] A movable base, the movable base having a vertical slot extending vertically therethrough, and an opening extending through the movable base at one end of the vertical slot along the first direction;

[0007] A lifting frame, which moves up and down and is connected to the movable base;

[0008] A lifting assembly is connected to the lifting frame to drive the lifting frame to move up and down through the vertical slot. The lifting frame has a standby position and a transfer position on its moving track. The standby position is located below the transfer position. The standby position is used for loading and unloading wheels, and the transfer position is used for transferring wheels.

[0009] There are two protective frames, which are respectively arranged on both sides of the movable base along the second direction. The area enclosed by the two protective frames and the lifting frame constitutes a placement cavity for placing the wheel.

[0010] In some embodiments of the present application, the lifting frame is provided with limiting grooves running through the upper and lower parts, and a portion of the edge of the wheel is engaged in the limiting groove to limit the wheel from rolling relative to the lifting frame.

[0011] In some embodiments of the present application, the lifting frame includes two first rods extending along the first direction, and the two first rods are spaced apart along the second direction;

[0012] Two second rods are spaced apart between the two first rods along the first direction. Both ends of the second rod along the second direction are respectively connected to the two first rods. The area between the two second rods and the two first rods constitutes the limiting groove.

[0013] In some embodiments of the present application, the lifting frame further includes two third rods extending vertically, and the two third rods are respectively vertically connected to the ends of the two first rods away from the opening;

[0014] Two fourth rods extending along the second direction are provided between the two third rods. The two fourth rods are spaced apart from each other, and two ends of the fourth rod along the second direction are respectively connected to the two third rods.

[0015] In some embodiments of the present application, the wheel transfer vehicle further comprises a frame provided at an end of the mobile base away from the opening, and the frame is provided with rail grooves extending up and down on both sides along the second direction;

[0016] The two fourth rods are rotatably mounted at both ends along the second direction with rollers matching the track grooves, and the rollers roll in the track grooves to enable the lifting frame to move up and down along a predetermined track.

[0017] In some embodiments of the present application, the lifting assembly includes a hydraulic rod provided at one end of the mobile base away from the opening, the retractable end of the hydraulic rod is connected to a shaft arranged along the second direction, sprockets are rotatably mounted on both ends of the shaft along the second direction, a chain is fitted on the sprocket, one end of the chain passing around the sprocket is fixedly connected to the frame, and the other end is fixedly connected to one of the fourth rods;

[0018] The hydraulic rod drives the shaft rod to move up and down, and drives the lifting frame to move up and down synchronously through the chain and the sprocket.

[0019] In some embodiments of the present application, the wheel transfer vehicle further comprises a stop frame which is openably and closably provided at an end of the placement cavity away from the third rod body;

[0020] One end of the blocking frame along the second direction is rotatably mounted on one of the protection frames, and the other end of the blocking frame is connected to the other protection frame via a locking member.

[0021] In some embodiments of the present application, an inclined surface is respectively provided at one end of the two first rods away from the third rod, and the inclined surface is tilted from bottom to top toward the third rod.

[0022] In some embodiments of the present application, an armrest is provided on the side of the frame facing away from the opening.

[0023] In some embodiments of the present application, the movable base has two directional wheels spaced apart along the second direction at one end close to the opening, and the movable base has two universal wheels spaced apart along the second direction at one end away from the opening.

[0024] Compared with the prior art, the wheel transfer vehicle of the embodiment of the present invention has the following beneficial effects: the present solution provides a wheel transfer vehicle and a liftable lifting frame on the transfer vehicle to facilitate the loading and unloading of the wheels; the protective frames provided on both sides of the transfer vehicle support and restraint the wheels on the lifting frame, thereby better avoiding the occurrence of the wheels tipping over during the transfer process; at the same time, the use of the transfer vehicle for wheel transfer also greatly reduces the labor intensity of airport staff, allowing staff to devote more energy and physical strength to work, thereby ensuring the safety of the wheel transfer process (preventing staff from being injured or wheel components and on-site equipment from being damaged due to wheel tipping over), and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0026] Figure 2 For this utility model Figure 1 A schematic diagram of the structure at center A;

[0027] Figure 3 For this utility model Figure 1 A magnified schematic diagram of the structure at point B in the middle;

[0028] Figure 4 This is a schematic diagram of the overall structure of the utility model from another perspective;

[0029] Figure 5 This is a schematic diagram of the structure of the lifting frame of the utility model;

[0030] Figure 6 This is a schematic diagram of the lifting frame of the utility model in a standby position;

[0031] Figure 7 For this utility model Figure 6 A magnified schematic diagram of the structure at point C in the middle;

[0032] Figure 8 This is a schematic diagram of the state in which the pressing rod of the utility model squeezes the second piston rod;

[0033] Figure 9 This is a schematic diagram of the working principle of the hydraulic rod of the utility model;

[0034] Figure 10 The utility model is a schematic diagram of a wheel transfer vehicle equipped with a handrail structure.

[0035] In the figure, 1, mobile base; 11, vertical slot; 12, opening; 13, fixed wheel; 14, universal wheel;

[0036] 2. Lifting frame; 21. Limiting groove; 22. First rod; 221. Inclined surface; 23. Second rod; 24. Third rod; 25. Fourth rod; 251. Roller;

[0037] 3. Lifting assembly; 31. Hydraulic rod; 311. First sleeve 41 body; 3111. First chamber; 3112. Second chamber; 3113. First piston rod; 312. Second sleeve 42 body; 3121. Second piston rod; 3122. Third chamber; 313. First one-way passage; 314. Second one-way passage; 315. First return passage; 316. Second return passage; 317. Pressure relief rod; 3171. Threaded portion; 3172. Sealing portion; 32. Shaft; 33. Sprocket; 34. Chain; 35. Pressing rod; 351. Abutment portion; 36. Spring;

[0038] 4. Protective frame; 41. First sleeve; 42. Second sleeve;

[0039] 5. Frame; 51. Track groove; 52. Handrail;

[0040] 6. Stop frame; 61. First axis; 62. Second axis;

[0041] X, first direction; Y, second direction. DETAILED DESCRIPTION

[0042] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0043] In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying 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 operated in a specific orientation, and therefore cannot be understood as a blockade of the present invention. It should be understood that the terms "first", "second", etc. are used in the present invention to describe various information, but such information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of the present invention, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information.

[0044] like Figures 1-10 As shown, the embodiment of the present application proposes a wheel transfer vehicle having a first direction X and a second direction Y, including a mobile base 1, as shown in FIG. Figure 10 As shown, the mobile base 1 has a vertical groove 11 that passes through the vertical groove 11, and an opening 12 that passes through the mobile base 1 is provided at one end of the vertical groove 11 along the first direction X; the lifting frame 2 is connected to the mobile base 1 for vertical movement; the lifting assembly 3 is connected to the lifting frame 2 to drive the lifting frame 2 to pass through the vertical groove 11 up and down, and the moving trajectory of the lifting frame 2 has a standby position and a transfer position, and the standby position is below the transfer position; the setting of the vertical groove 11 in this scheme is used to allow the lifting frame 2 to pass through the vertical groove 11 from top to bottom or from bottom to top, so that the lifting frame 2 moves from the transfer position to the standby position (for loading and unloading wheels), or moving from the standby position to the transfer position (for transferring wheels); the opening 12 is set to allow the wheel to roll from the ground to the lifting frame 2 in the standby position (transferring the wheel to the transfer vehicle), or the wheel on the lifting frame 2 in the standby position is rolled from the lifting frame 2 to the ground (unloading the wheel from the transfer vehicle); and there are two protective frames 4, the two protective frames 4 are respectively arranged on both sides of the mobile base 1 along the second direction Y, and the area enclosed by the two protective frames 4 and the lifting frame 2 constitutes a placement cavity for placing the wheel.

[0045] During the specific implementation of this embodiment, the staff first adjusts the opening 12 to the position corresponding to the wheel to be transferred (i.e., the wheel is located directly in front of the opening 12), and then drives the lifting frame 2 downward through the lifting assembly 3 so that the lifting frame 2 is in the standby position (e.g., Figure 6), then the staff pushes the wheel by hand so that the wheel on the ground rolls through the opening 12 to the lifting frame 2 in the standby position, and then drives the lifting frame 2 upward through the lifting component 3, so that the lifting frame 2 moves from the current standby position to the transfer position (the lifting frame 2 is out of contact with the ground). At this time, the wheel transfer vehicle can be pushed to move and the transfer of the wheel can be realized. When the waiting wheel is transferred to the predetermined position, the staff drives the lifting frame 2 downward through the lifting component 3 so that the lifting frame 2 is in the standby position. At this time, the staff can roll the wheel on the lifting frame 2 to the ground so that the wheel is unloaded from the transfer vehicle. During the transfer process, the two protective frames 4 are used to support and restrain the wheel on the lifting frame 2 to prevent the wheel from tipping to one side during the transfer process and to prevent the wheel from falling from the transfer vehicle.

[0046] In some embodiments of the present application, Figure 1 、 Figure 5 As shown, the lifting frame 2 is provided with a limiting groove 21 running through the upper and lower parts (the width of the limiting groove 21 along the second direction Y should be greater than the width of the wheel, so that the wheel can be inserted into the limiting groove 21, and the length of the limiting groove 21 along the first direction X should be less than the diameter of the wheel to prevent the wheel from falling out of the limiting groove 21. The length of the limiting groove 21 along the first direction X is preferably half of the diameter of the wheel). When the wheel rolls onto the lifting frame 2, part of the edge of the wheel is engaged in the limiting groove 21, which is used to limit the rolling of the wheel on the lifting frame 2 to ensure the stability of the wheel during transportation.

[0047] In some embodiments of the present application, Figure 5 As shown, the lifting frame 2 includes two first rods 22 extending along the first direction X, and the two first rods 22 are arranged at intervals along the second direction Y; two second rods 23 are arranged at intervals along the first direction X between the two first rods 22, and each second rod 23 is connected to the two first rods 22 at both ends along the second direction Y, and the area between the two second rods 23 and the two first rods 22 constitutes a limiting groove 21; in this embodiment, the lifting frame 2 in this scheme is constituted by arranging two first rods 22 arranged at intervals and the second rods 23 respectively connected to the two first rods 22, so that the weight of the lifting frame 2 can be effectively reduced, which helps to reduce the weight of the transfer vehicle itself and reduce the labor burden of the staff; at the same time, the limiting groove 21 is formed by the connection and cooperation between the first rod 22 and the second rod 23, which is used to realize the clamping and limiting of the wheel to prevent the wheel from rolling on the lifting frame 2 during transportation.

[0048] In some embodiments of the present application, Figure 1 、 Figure 4 、 Figure 5As shown, the lifting frame 2 further includes two third rods 24 extending vertically. The two third rods 24 are respectively connected perpendicularly to the ends of the two first rods 22 away from the opening 12. Two fourth rods 25 extending in the second direction Y are disposed between the two third rods 24. The two fourth rods 25 are spaced apart vertically, and the ends of the fourth rods 25 along the second direction Y are respectively connected to the two third rods 24. In this embodiment, the provision of the third and fourth rods 24, 25 not only improves the structural strength of the lifting frame 2, but also, through the cooperation between the two third and fourth rods 24, 25, the end of the placement cavity for the wheel away from the opening 12 is closed. When a portion of the outer edge of the wheel is engaged in the retaining groove 21, the outer periphery of the wheel facing away from the opening 12 abuts against the cooperating third and fourth rods 24, 25, thereby preventing the wheel from moving in the first direction X and further improving the stability of the wheel during transportation.

[0049] In some embodiments of the present application, Figure 1 、 Figure 10 As shown, the wheel transfer vehicle in this embodiment further includes a frame 5 (the frame 5 is designed in an inverted U shape) provided at one end of the mobile base 1 away from the opening 12, and the frame 5 is provided with rail grooves 51 extending up and down on both sides along the second direction Y; Figure 4 As shown, the two fourth rod bodies 25 are rotatably installed with rollers 251 matching the track groove 51 at both ends along the second direction Y (the outer diameter of the roller 251 matches the size of the track groove 51, so that the outer periphery of the roller 251 abuts against the wall of the track groove 51. In this scheme, a total of four rollers 251 are set, and the rollers 251 are installed on both sides of the fourth rod body 25 along the second direction Y through bearings), so that when the rollers 251 roll in the track groove 51, they can drive the lifting frame 2 to move up and down along a predetermined track. In this embodiment, the matching setting of the rollers 251 and the track groove 51 allows the lifting frame 2 to move up and down according to the predetermined track to ensure that the lifting frame 2 is more stable during the conversion between the standby position and the transfer position.

[0050] In some embodiments of the present application, Figure 1 As shown, the lifting assembly 3 includes a hydraulic rod 31 provided at one end of the mobile base 1 away from the opening 12, and the retractable end of the hydraulic rod 31 is connected to a shaft 32 provided along the second direction Y. Sprockets 33 are rotatably mounted on both ends of the shaft 32 along the second direction Y, and a chain 34 is fitted on the sprocket 33; Figure 4As shown, one end of the chain 34 passes around the sprocket 33 and is fixedly connected to the frame 5, and the other end is fixedly connected to one of the fourth rod bodies 25; when the hydraulic rod 31 drives the shaft rod 32 to move up and down, the sprocket 33 will rotate relative to the shaft rod 32, and then through the cooperation of the sprocket 33 and the chain 34, the lifting frame 2 is driven to move up and down synchronously; the sprocket 33 and chain 34 in this scheme can be replaced by pulleys and belts; when the hydraulic rod 31 drives the shaft rod 32 to move upward, it drives the lifting frame 2 to move upward synchronously, and at this time the roller 251 rolls upward in the corresponding track groove 51; when the hydraulic rod 31 drives the shaft rod 32 to move downward, it drives the lifting frame 2 to move downward synchronously, and at this time the roller 251 rolls downward in the corresponding track groove 51.

[0051] like Figure 4 、 Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 As shown, this embodiment provides a specific structure of a hydraulic rod 31 as follows:

[0052] like Figure 7 、 Figure 8 、 Figure 9 As shown, the hydraulic rod 31 includes a first cylinder 311 installed on the mobile base 1, and a first cavity 3111 and a second cavity 3112 are coaxially spaced in the first cylinder 311. A first piston rod 3113 is vertically mounted in the second cavity 3112. The first piston rod 3113 extends upward from the second cavity 3112 and extends at one end for fixing the shaft rod 32. The first cylinder 312 is located on one side of the first cylinder 311 along the first direction X, and a third piston rod 313 is provided in the first cylinder 312. The cavity 3122 (the first cavity 3111, the second cavity 3112, and the third cavity 3122 are all filled with hydraulic oil, and the upper end of the first cavity 3111 is provided with a vent connected to the outside), the third cavity 3122 is vertically movable with a second piston rod 3121, the second piston rod 3121 extends upward from the third cavity 3122, and a stop cap (not numbered in the figure) is provided at one end of the second piston rod 3121 extending upward from the third cavity 3122, and a spring 36 is provided between the stop cap and the movable base 1; Figure 4 As shown, a pressing rod 35 is rotatably mounted on the outer wall of the first cylinder 311 near the bottom. An abutment portion 351 that abuts against the stop cap is provided at the rotational mounting portion between the pressing rod 35 and the first cylinder 311. When the pressing rod 35 is rotated downward, the stop cap can be squeezed through the abutment portion 351, and the second piston rod 3121 is forced to move downward in the third chamber 3122. Figure 9As shown, a channel connected between the first cavity 3111, the second cavity 3112, and the third cavity 3122 is provided in the mobile base 1, including a first one-way channel 313 connected between the second cavity 3112 and the third cavity 3122 (so that the liquid medium can only move from the third cavity 3122 to the second cavity 3112 and cannot move in the opposite direction), and a second one-way channel 314 connected between the first cavity 3111 and the third cavity 3122 (so that the liquid medium can only move from the first cavity 3111 to the third cavity 3122 and cannot move in the opposite direction). The first one-way channel 313 and the second one-way channel 314 are connected between the second cavity 3112 and the third cavity 3122. Each of the two valves is provided with a one-way valve; it also includes a first return channel 315 communicating with the first chamber 3111, and a second return channel 316 communicating with the second chamber 3112. The second return channel 316 includes a vertical portion and a horizontal portion. The first return channel 315 is connected to the horizontal portion of the second return channel 316. A pressure relief rod 317 is threadedly assembled on the mobile base 1. The pressure relief rod 317 includes a threaded portion 3171 threadedly assembled with the mobile base 1, and a sealing portion 3172 inserted into the horizontal portion of the second return channel 316 (the sealing portion 3172 is in close contact with the inner wall of the horizontal portion of the second return channel 316); as shown in FIG. Figure 9 As shown, at this time, the sealing portion 3172 blocks the conductive portion between the first return channel 315 and the second return channel 316, so that the first return channel 315 and the second return channel 316 are in a non-conductive state.

[0053] When it is necessary to move the lifting frame 2 upward, the staff first adjusts the pressure relief lever 317 to Figure 9 3111 and the second chamber 3112 are disconnected, and then the pressing rod 35 is pressed downward to squeeze the stop cap provided on the upper end of the second piston rod 3121 through the abutment portion 351, thereby forcing the second piston rod 3121 to move downward in the third chamber 3122 (as shown in FIG. Figure 8After the first and second cams 3121 are in the closed position, the hydraulic oil in the third chamber 3122 is squeezed into the second chamber 3112 through the first one-way channel 313 (the second one-way channel 314 is in a non-conducting state at this time), thereby forcing the first piston rod 3113 to move upward in the second chamber 3112 under the action of the hydraulic oil, thereby achieving the effect of driving the shaft rod 32 to move upward, and finally achieving the effect of driving the lifting frame 2 to move upward (so that the lifting frame 2 moves from the standby position to the transfer position); when the staff presses the pressing rod 35 to a certain extent, the downward pressure applied to the pressing rod 35 is removed, and the pressing rod 35 is reset and rotated upward under the action of the spring 36, thereby causing the second piston rod 3121 to move upward under the action of the spring 36. The upward movement of the third chamber 3122 realizes that the hydraulic oil in the first chamber 3111 is drawn into the third chamber 3122 through the second one-way channel 314 (the first one-way channel 313 is not conductive at this time). When the pressing rod 35 rotates upward to the initial position, the staff continues to press the pressing rod 35, causing the second piston rod 3121 to move downward again, thereby realizing that the hydraulic oil drawn into the third chamber 3122 is sent into the second chamber 3112 again through the first one-way channel 313, causing the first piston rod 3113 to continue to move upward. The staff repeats the above process to drive the lifting frame 2 to move continuously upward, and when it moves to the predetermined position (transfer position), stop pressing the pressing rod 35. At this time, the first piston rod 3113 (lifting frame 2) maintains its current position.

[0054] When the lifting frame 2 needs to be moved downward, the lifting frame 2 needs to be moved from the transfer position to the standby position. At this time, the staff completes the above process by operating the pressure relief lever 317; specifically, first screw the threaded portion 3171 (a screwing handle is provided at one end of the threaded portion 3171), and by turning the screwing handle, the threaded portion 3171 is continuously extended outward from the inside of the movable base 1, thereby synchronously driving the sealing portion 3172 to withdraw outward from the horizontal part of the second return flow channel 316, so that the sealing portion 3172 is away from the end of the threaded portion 3171 and no longer separates the second return flow channel 316 from the first The connection between the return channel 315 and the second return channel 316 is now connected, causing the first piston rod 3113 to move downward within the second chamber 3112 under the action of gravity, thereby pressing the hydraulic oil in the second chamber 3112 into the first chamber 3111 through the second return channel 316 and the first return channel 315, thereby achieving hydraulic oil return. As the first piston rod 3113 moves downward within the second chamber 3112, the lifting frame 2 moves downward from the transfer position to the standby position, completing the loading and unloading of the wheel. The handle is then rotated in the opposite direction, causing the sealing portion 3172 to once again seal the connection between the first return channel 315 and the second return channel 316, facilitating the next use.

[0055] The specific detailed structure of the hydraulic rod 31 in this scheme (such as the first cylinder 311, the second cylinder 312, the first cavity 3111, the second cavity 3112, the third cavity 3122, etc.) is not limited to the above arrangement, as long as the flow of hydraulic oil can be controlled to drive the lifting frame 2 to move up and down.

[0056] In some embodiments of the present application, the wheel transfer vehicle further comprises a stop frame 6 which is openable and closable and is located at one end of the placement cavity away from the third rod 24; one end of the stop frame 6 is rotatably mounted on one of the protective frames 4 along the second direction Y, and the other end of the stop frame 6 is connected to the other protective frame 4 via a locking member. Figure 1 、 Figure 2 、 Figure 3 As shown, this embodiment provides a structure in which the stop frame 6 is rotatably connected to the protective frame 4, and a structure of a locking member; Figure 2 As shown, a first shaft 61 and a second shaft 62 are respectively installed at both ends of the stop frame 6 along the second direction Y (mounting plates protruding from the stop frame 6 are respectively provided at both ends of the stop frame 6, and the first shaft 61 and the second shaft 62 are installed on the mounting plates), and a first sleeve 41 and a second sleeve 42 cooperating with the first shaft 61 and the second shaft 62 are respectively provided on the two protective frames 4, and the outer diameters of the first shaft 61 and the second shaft 62 are smaller than the inner diameters of the first sleeve 41 and the second sleeve 42.

[0057] When it is necessary to load and unload the wheel, the stop frame 6 can be lifted upward so that the first shaft 61 and the second shaft 62 are respectively withdrawn from the first sleeve 41 and the second sleeve 42. At this time, one end of the placement cavity is opened to facilitate the loading and unloading of the wheel; or one end of the stop frame 6 can be lifted upward by hand so that the first shaft 61 (second shaft 62) at this end is withdrawn from the first sleeve 41 (second sleeve 42). Since the diameters of the first shaft 61 and the second shaft 62 are smaller than the inner diameters of the first sleeve 41 and the second sleeve 42, the second shaft 62 (first shaft 61) at the other end can generate radial movement in the second sleeve 42 (first sleeve 41) to facilitate lifting the other end of the stop frame 6 upward; then the stop frame 6 can be rotated toward the other end, and the placement cavity can also be opened at this time.

[0058] When the wheel loading and unloading is completed and the transfer vehicle needs to be moved, the staff will insert the first shaft 61 and the second shaft 62 at both ends of the stop frame 6 into the corresponding first sleeve 41 and the second sleeve 42 again to complete the installation of the stop frame 6; or rotate the stop frame 6 until one end of the stop frame 6 is freely rotated to a position close to the protective frame 4, and then slightly lift the free end of the stop frame 6 to a certain height, and then align the first shaft 61 (second shaft 62) and the first sleeve 41 (second sleeve 42) at this end, and then move the free end of the stop frame 6 downward so that the first shaft 61 (second shaft 62) is inserted downward into the first sleeve 41 (second sleeve 42), and the installation and positioning of the stop frame 6 can be completed, thereby achieving a certain degree of shielding of the placement cavity.

[0059] The setting of the stop frame 6 in this solution can block the end of the placement cavity, thereby limiting the position of the wheel on the lifting frame 2, which can effectively prevent the wheel from rolling off the lifting frame 2 due to shaking caused by uneven road surface during transportation, further improving the stability of the wheel during transportation and ensuring the safety of the transportation process.

[0060] In some embodiments of the present application, Figure 5 、 Figure 6 As shown, an inclined surface 221 is provided at one end of the two first rods 22 away from the third rod 24. The inclined surface 221 is inclined from bottom to top toward the third rod 24. The arrangement of the inclined surface 221 makes it possible for the lifting frame 2 to be in a position such as Figure 6 In the standby position shown, the staff can push the wheels by hand to better transfer the machine from the ground to the lifting frame 2.

[0061] In some embodiments of the present application, Figure 10 As shown, a handrail 52 is provided on the side of the frame 5 facing away from the opening 12, so that the staff can push the transfer vehicle to move by holding the handrail 52.

[0062] In some embodiments of the present application, Figure 1 As shown, the mobile base 1 has two fixed wheels 13 spaced apart along the second direction Y at one end near the opening 12, and two universal wheels 14 spaced apart along the second direction Y at one end away from the opening 12. The universal wheels 14 are located near the handrail 52 to help staff better control the direction of movement of the transfer vehicle, making the adjustment of the transfer vehicle's direction more sensitive and allowing for flexible movement in a crowded maintenance workshop.

[0063] The working process of the utility model is as follows: when it is necessary to transfer a wheel, the staff moves the transfer vehicle to the front of the wheel to be transferred, so that the opening 12 on the movable base 1 is aligned with the wheel, and then moves the lifting frame 2 downward and puts it in the standby position. After opening the blocking frame 6, the staff pushes the wheel to roll onto the lifting frame 2 by hand, and makes the outer edge of the wheel be stuck in the limit groove 21, and closes the blocking frame 6; moves the lifting frame 2 upward and puts it in the transfer position, and then moves the transport vehicle to realize the transfer of the wheel.

[0064] In summary, the embodiment of the present invention provides a wheel transfer vehicle. This solution is to set up a wheel transfer vehicle and set a liftable lifting frame 2 on the transfer vehicle to facilitate the loading and unloading of the wheel; by means of protective frames 4 arranged on both sides of the transfer vehicle, the wheel located on the lifting frame 2 is supported and restrained, which better avoids the situation where the wheel tips over during the transfer process; at the same time, the use of a transfer vehicle for wheel transfer also greatly reduces the labor intensity of airport staff, so that the staff can devote more energy and physical strength to their work, which ensures the safety of the wheel during transfer (preventing staff from being injured or wheel components and on-site equipment from being damaged due to wheel tipping) and improves work efficiency; a limit groove 21 is provided on the lifting frame 2, so that when the wheel is on the lifting frame 2, the wheel can be restricted from rolling relative to the lifting frame 2, further improving the safety of the wheel during transfer.

[0065] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and replacements can be made without departing from the technical principles of the present invention. These improvements and replacements should also be regarded as the scope of protection of the present invention.

Claims

1. A wheel transfer vehicle having a first direction (X) and a second direction (Y), characterized in that: include: A movable base (1), the movable base (1) having a vertical groove (11) extending vertically therethrough, and an opening (12) extending through the movable base (1) is provided at one end of the vertical groove (11) along the first direction (X); A lifting frame (2) is connected to the movable base (1) for vertical movement; A lifting assembly (3) is connected to the lifting frame (2) to drive the lifting frame (2) to pass through the vertical slot (11) up and down, and the moving track of the lifting frame (2) has a standby position and a transfer position, the standby position is below the transfer position, the standby position is used for loading and unloading wheels, and the transfer position is used for transferring wheels; and There are two protective frames (4), and the two protective frames (4) are respectively arranged on both sides of the movable base (1) along the second direction (Y). The area enclosed by the two protective frames (4) and the lifting frame (2) constitutes a placement cavity for placing the wheel.

2. The wheel transfer vehicle according to claim 1, characterized in that: The lifting frame (2) is provided with a limiting groove (21) running through the upper and lower parts, and a part of the edge of the wheel is engaged in the limiting groove (21), thereby limiting the wheel from rolling relative to the lifting frame (2).

3. The wheel transfer vehicle according to claim 2, characterized in that: The lifting frame (2) comprises two first rods (22) extending along the first direction (X), and the two first rods (22) are spaced apart along the second direction (Y); Two second rods (23) are arranged between the two first rods (22) along the first direction (X), and the two ends of the second rod (23) along the second direction (Y) are respectively connected to the two first rods (22), and the area between the two second rods (23) and the two first rods (22) constitutes the limiting groove (21).

4. The wheel transfer vehicle according to claim 3, characterized in that: The lifting frame (2) further comprises two third rods (24) extending up and down, and the two third rods (24) are respectively vertically connected to the ends of the two first rods (22) away from the opening (12); Two fourth rods (25) extending along the second direction (Y) are provided between the two third rods (24), the two fourth rods (25) being spaced apart from each other, and the two ends of the fourth rod (25) along the second direction (Y) are respectively connected to the two third rods (24).

5. The wheel transfer vehicle according to claim 4, characterized in that: The wheel transfer vehicle further comprises a frame (5) provided at one end of the mobile base (1) away from the opening (12), and the frame (5) is provided with rail grooves (51) extending up and down on both sides along the second direction (Y); The two fourth rods (25) are rotatably mounted at both ends along the second direction (Y) with rollers (251) matching the track groove (51), and the rollers (251) roll in the track groove (51) to enable the lifting frame (2) to move up and down along a predetermined track.

6. The wheel transfer vehicle according to claim 5, characterized in that: The lifting assembly (3) includes a hydraulic rod (31) provided at one end of the movable base (1) away from the opening (12); a retractable end of the hydraulic rod (31) is connected to a shaft rod (32) provided along a second direction (Y); sprockets (33) are rotatably mounted at both ends of the shaft rod (32) along the second direction (Y); a chain (34) is fitted on the sprocket (33); one end of the chain (34) passes around the sprocket (33) and is fixedly connected to the frame (5); and the other end of the chain (34) is fixedly connected to one of the fourth rod bodies (25); The hydraulic rod (31) drives the shaft rod (32) to move up and down, and drives the lifting frame (2) to move up and down synchronously through the chain (34) and the sprocket (33).

7. The wheel transfer vehicle according to claim 4, characterized in that: The wheel transfer vehicle further comprises a stop frame (6) which is openably and closably arranged at one end of the placement cavity away from the third rod (24); One end of the stopping frame (6) along the second direction (Y) is rotatably mounted on one of the protection frames (4), and the other end of the stopping frame (6) is connected to the other protection frame (4) via a locking member.

8. The wheel transfer vehicle according to claim 4, characterized in that: An inclined surface (221) is respectively provided at one end of the two first rod bodies (22) away from the third rod body (24), and the inclined surface (221) is arranged to be inclined from bottom to top toward the third rod body (24).

9. The wheel transfer vehicle according to claim 5, characterized in that: A handrail (52) is provided on the side of the frame (5) facing away from the opening (12).

10. The wheel transfer vehicle according to any one of claims 1 to 9, characterized in that: The end of the mobile base (1) close to the opening (12) has two directional wheels (13) spaced apart along the second direction (Y), and the end of the mobile base (1) away from the opening (12) has two universal wheels (14) spaced apart along the second direction (Y).

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