APU lifting tooling

Abstract

The utility model relates to the technical field of APU installation and disassembly, and particularly to an APU lifting tool, comprising a top support frame, a fine-tuning component, a heading adjustment frame, an X / Y direction adjustment component, a span adjustment frame, a Z-axis rotation component and a lifting component, wherein the lifting component is vertically arranged, and its driving end is upward, the bottom end of the Z-axis rotation component is connected to the driving end of the lifting component, and its top end is connected to the bottom end of the span adjustment frame, and the top end of the span adjustment frame is connected to the bottom end of the heading adjustment frame through the X / Y direction adjustment component, the fine-tuning component comprises a hand-cranked lift, a connecting shaft and a joint bearing, the hand-cranked lift is vertically arranged on one side of the heading adjustment frame, and its driving end is upward; the connecting shaft is horizontally arranged in a U-shaped notch at the end of the top support frame; the joint bearing is arranged on the driving end of the hand-cranked lift, and a sliding sleeve is arranged in the middle of the connecting shaft; the operating space of the utility model meets ergonomics, and the position and posture of the APU system are stable during the lifting process.

Description

Technical Field

[0001] The utility model relates to the technical field of APU installation and disassembly, in particular to an APU lifting tool. Background Art

[0002] There are two main ways to disassemble and assemble the aircraft APU system: jacking installation and hoisting installation. When installing the APU system in the APU cabin by jacking, the position and installation angle of the APU system must be adjusted first, so that the connecting rod can be connected to the APU system at the same time. This requires the APU jacking equipment to have a six-degree-of-freedom adjustment function.

[0003] According to the invention patent application (published on October 9, 2018, publication number CN108622435A), a six-degree-of-freedom APU installation adjustment device is disclosed, which mainly discloses that the six-degree-of-freedom adjustment is achieved through a three-point ball head adjustment mechanism, an X-axis movement mechanism, a Y-axis movement mechanism, a Z-axis rotation mechanism, and a Z-axis lifting mechanism. This adjustment device sets the three-point ball head adjustment mechanism between the lifting platform and the X-axis movement mechanism. Since the APU system is generally installed in the tail vertebrae of the last section of the fuselage, the space is relatively small. The setting method of the three-point ball head adjustment mechanism results in limited operating space during fine-tuning, which is not ergonomic. In addition, the Z-direction lifting in the existing APU lifting device mostly adopts multi-stage hydraulic cylinder lifting. As the lifting height increases, the diameter of the hydraulic rod becomes thinner, the rigidity becomes smaller, and the deflection generated becomes larger, which causes the APU lifting device to shake significantly during the lifting process, thereby failing to ensure the stability of the posture of the APU system during the lifting process. At the same time, as the frequency and cycle of use increase, the pressure maintaining function of the hydraulic cylinder weakens, and it needs to be repaired regularly, the after-sales service cost is high, and it brings inconvenience to on-site use. Utility Model Content

[0004] The technical problem to be solved by the utility model is: to overcome the deficiencies in the prior art and to provide an APU lifting tool with a simple structural design, an operating space that satisfies ergonomics, and a stable position and posture of the APU system during the lifting process.

[0005] The technical solution adopted by the utility model to solve the technical problem is: an APU lifting tool, including a top support frame, a fine-tuning component, a heading adjustment frame, an X / Y direction adjustment component, a span adjustment frame, a Z-axis rotation component and a lifting component, the lifting component is vertically arranged, and its driving end is upward, the bottom end of the Z-axis rotation component is connected to the driving end of the lifting component, and the top end is connected to the bottom end of the span adjustment frame, the top end of the span adjustment frame is connected to the bottom end of the heading adjustment frame through the X / Y direction adjustment component, and the fine-tuning component includes

[0006] A hand-cranked lift is installed vertically on one side of the heading adjustment frame with its drive end facing upwards;

[0007] The connecting shaft is installed horizontally in the U-shaped notch at the end of the top support frame;

[0008] The spherical bearing is installed at the driving end of the hand lift, and the sliding sleeve is arranged in the middle of the connecting shaft;

[0009] The fine-tuning components are divided into three groups, one group is fixedly mounted on one side of the heading adjustment frame, and the other two groups are relatively movably mounted on the other side of the heading adjustment frame along the X direction.

[0010] Furthermore, the X / Y adjustment assembly includes an X-direction adjustment group, a Y-direction adjustment group and an adapter, the X-direction adjustment group is horizontally installed along the X direction at the bottom end of the heading adjustment frame, the Y-direction adjustment group is horizontally installed along the Y direction at the top end of the span adjustment frame, and the X-direction adjustment group and the Y-direction adjustment group are connected via an adapter.

[0011] Furthermore, the X-direction adjustment group includes an X-direction frame, an X-direction screw rod, an X-direction screw rod nut, an X-direction slider and an X-direction handle, the top end of the X-direction frame is connected to the bottom end of the heading adjustment frame, the X-direction screw rod is rotatably installed in the middle of the bottom end of the X-direction frame, and is horizontally arranged along the X-direction, the X-direction screw rod nut is threadedly sleeved on the X-direction screw rod, the X-direction slider is respectively installed at both ends of the X-direction screw rod nut along the Y-direction, the top end of the X-direction slider is slidably connected to the bottom end of the X-direction frame, and its bottom end is connected to the top end of the adapter, and the X-direction handle is connected to one end of the X-direction screw rod.

[0012] Further, the Y-direction adjustment group includes a Y-direction frame, a Y-direction screw rod, a Y-direction screw rod nut, a Y-direction slider and a Y-direction handle. The bottom end of the Y-direction frame is connected to the top end of the span-wise adjustment frame. The Y-direction screw rod is rotatably installed in the middle of the top end of the Y-direction frame and is horizontally arranged along the Y-direction. The Y-direction screw rod nut is threadedly sleeved on the Y-direction screw rod. The Y-direction slider is respectively installed at both ends of the Y-direction screw rod nut along the X-direction. The bottom end of the Y-direction slider is slidably connected to the top end of the Y-direction frame, and its top end is connected to the bottom end of the adapter. The Y-direction handle is connected to one end of the Y-direction screw rod.

[0013] Furthermore, the Z-axis rotation assembly includes a rotating base, a rotating disk, a central shaft, a thrust ball bearing and a deep groove bearing. A groove is opened in the center of the top of the rotating base, the thrust ball bearing is installed at the bottom of the groove, and the central shaft is vertically installed at the center of the bottom of the groove. The rotating disk is sleeved on the top of the central shaft through the deep groove bearing, the bottom edge of the rotating disk is connected to the thrust ball bearing, and the top of the rotating disk is connected to the bottom end of the span adjustment frame.

[0014] Furthermore, the lifting assembly includes an electric lift, a mounting frame, an electric control cabinet and a remote control. The electric lift is vertically mounted on the mounting frame, and its driving end is connected to the bottom center of the rotating base. The electric control cabinet is arranged in the mounting frame for controlling the lifting and lowering of the electric lift. The remote control is arranged on the outer wall of the mounting frame and is communicatively connected to the electric control cabinet.

[0015] Furthermore, it also includes a circumferential limit group for mechanically limiting the rotation angle of the rotating disk, the circumferential limit group includes a limit support, a limit shaft, a large washer and a fixed handle, the limit support is installed at the bottom end of the span adjustment frame, an arc-shaped limit hole is opened on the rotating base, the limit shaft passes through the arc-shaped limit hole and slides with the arc-shaped limit hole, the top end of the limit shaft is connected to the limit support, and the bottom end thereof is connected to the fixed handle, the large washer is sleeved on the limit shaft, the top end of the large washer conflicts with the rotating base, and the bottom end thereof conflicts with the fixed handle.

[0016] Furthermore, it also includes a ratchet handle group, which includes a transmission shaft, a coupling and a handle. The transmission shaft is rotatably installed on the top of the electric control cabinet. One end of the transmission shaft is connected to the input shaft in the electric lift through the coupling, and the other end is connected to the handle.

[0017] Furthermore, it also includes a bottom support assembly, which includes a bottom frame, casters, legs, hanging rings and handrails. The top center of the bottom frame is connected to the bottom end of the mounting frame, the casters are respectively installed at the four corners of the bottom end of the bottom frame, the legs are respectively installed at the four corners of the bottom frame, the hanging rings are respectively installed at the four corners of the top end of the bottom frame, and the handrail is installed in the middle of one side of the bottom frame.

[0018] Furthermore, it also includes a guide assembly, which includes four groups of guide assemblies that are evenly arranged along the circumference of the electric lift. The guide assembly includes a linear bearing and a guide shaft. The linear bearing is installed on the top of the mounting frame. The guide shaft passes through the linear bearing and slides with the linear bearing. The top end of the guide shaft is connected to the rotating base, and the bottom end thereof extends into the mounting frame.

[0019] The beneficial effects of the utility model are:

[0020] (1) The utility model realizes fine adjustment of the position and attitude of the APU system by setting a fine adjustment component. At the same time, the fine adjustment component is set on the side of the top support frame to avoid crowding between the top support frame and the heading adjustment frame. When adjusting, only the handle on the side of the hand-cranked lift needs to be shaken, which is ergonomic;

[0021] (2) The utility model adopts the arrangement of the joint bearing, which can rotate and swing at any angle and has an adaptive function, so that the top support frame can be adjusted at any angle. At the same time, when the connecting rod is connected to the APU system, the top support frame can realize adaptive flexible adjustment, thereby avoiding the phenomenon of stiffness at the connection point due to rigid installation.

[0022] (3) The utility model ensures that the APU system can be smoothly raised along the guide shaft during the lifting process by setting the guide assembly to avoid shaking, thereby ensuring the stability of the posture of the APU system during the lifting process;

[0023] (4) The jacking assembly in the utility model adopts an electric lift. Compared with the multi-stage hydraulic cylinder jacking, the electric lift is driven by a servo motor. The lifting stroke can be precisely controlled. Combined with the control of its own algorithm, the start and stop of the electric lift during the jacking process are smoother. At the same time, it is more environmentally friendly, more energy-saving, more durable, and has low after-sales service costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

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

[0026] Figure 2 It is a front view of the utility model;

[0027] Figure 3 It is a schematic diagram of the U-shaped notch in the utility model;

[0028] Figure 4 It is a schematic diagram of a fixed angle seat in the utility model;

[0029] Figure 5 It is a schematic diagram of the X / Y direction adjustment component in the utility model;

[0030] Figure 6 It is a schematic diagram of the Z-axis rotation assembly in the utility model;

[0031] Figure 7 It is a schematic diagram of the groove in the utility model;

[0032] Figure 8 It is a schematic diagram of the jacking assembly in the utility model;

[0033] Fig. 9 It is a schematic diagram of the ratchet handle assembly in the utility model;

[0034] Fig.10 It is a schematic diagram of the bottom support assembly in the present utility model.

[0035] In the figure: 100, top support frame; 110, U-shaped notch; 200, fine adjustment assembly; 210, hand lift; 220, connecting shaft; 230, joint bearing; 300, heading adjustment frame; 400, X / Y adjustment assembly; 410, X adjustment group; 411, X frame; 412, X screw rod; 413, X screw rod nut; 414, X slider; 415, X handle; 420, Y adjustment group; 421, Y frame; 422, Y screw rod; 423, Y screw rod nut; 424, Y slider; 425, Y handle; 430, adapter; 500, span adjustment frame; 600, Z axis rotation assembly; 610, rotating base; 620, rotating disk; 630, center Spindle; 640, thrust ball bearing; 650, deep groove bearing; 660, groove; 670, circumferential limit group; 671, limit support; 672, limit shaft; 673, large washer; 674, fixed handle; 675, arc limit hole; 700, lifting assembly; 710, electric lift; 720, mounting frame; 730, electric control cabinet; 740, remote control; 750, ratchet handle group; 751, transmission shaft; 752, coupling; 753, handle; 800, bottom support assembly; 810, bottom frame; 820, caster; 830, support leg; 840, lifting ring; 850, handrail; 900, guide assembly; 910, linear bearing; 920, guide shaft; 1000, fixed angle seat; 1100, gasket. DETAILED DESCRIPTION

[0036] Now the utility model is further described in conjunction with the accompanying drawings and preferred embodiments. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.

[0037] Example 1

[0038] like Figure 1-Figure 4As shown, an APU lifting tool comprises a top support frame 100, a fine adjustment component 200, a heading adjustment frame 300, an X / Y direction adjustment component 400, a span adjustment frame 500, a Z-axis rotation component 600 and a lifting component 700. The lifting component 700 is vertically arranged with its driving end facing upwards, the bottom end of the Z-axis rotation component 600 is connected to the driving end of the lifting component 700, and the top end thereof is connected to the bottom end of the span adjustment frame 500, the top end of the span adjustment frame 500 is connected to the bottom end of the heading adjustment frame 300 through the X / Y direction adjustment component 400, and the fine adjustment component 200 is connected to the Z-axis rotation component 600. 0 includes a hand-cranked lift 210, a connecting shaft 220 and a joint bearing 230. The hand-cranked lift 210 is vertically installed on one side of the heading adjustment frame 300, and its driving end is upward; the connecting shaft 220 is horizontally installed in the U-shaped notch 110 at the end of the top support frame 100; the joint bearing 230 is installed at the driving end of the hand-cranked lift 210, and is slidably sleeved in the middle of the connecting shaft 220; the fine-tuning components 200 are three groups, one group is fixedly installed on one side of the heading adjustment frame 300, and the other two groups are relatively movable along the X direction (i.e., heading) on ​​the other side of the heading adjustment frame 300. Through the setting of the fine-tuning components 200, the position and attitude of the APU system can be fine-tuned. At the same time, the fine-tuning components 200 are set on the side of the top support frame 100 to avoid crowding between the top support frame 100 and the heading adjustment frame 300. When adjusting, it is only necessary to shake the handle on the upper side of the hand-cranked lift 210, which is in line with ergonomics.

[0039] Specifically, one set of fine-tuning components 200 is arranged in the middle of the left side of the top support frame 100, wherein the hand-cranked lift 210 is connected to the heading adjustment frame 300 through a fixed angle seat 1000, and a gasket 1100 is provided between the joint bearing 230 and the side wall of the U-shaped notch 110 for limiting; the other two sets of fine-tuning components 200 are symmetrically arranged at the front and rear ends of the right side of the top support frame 100, wherein the hand-cranked lift 210 is rotatably connected to the heading adjustment frame 300, and there is a gap between the joint bearing 230 and the side wall of the U-shaped notch 110, so that the joint bearing 230 can move along the The connecting shaft 220 can slide; the hand lift 210 is a trapezoidal worm gear structure, which is a prior art, and its driving force comes from the handle on the hand lift 210; the joint bearing 230 can rotate and swing at any angle, and has an adaptive function, which not only realizes the adjustment of the top support frame 100 at any angle, but also when the connecting rod is connected to the APU system, the top support frame 100 can achieve adaptive flexible adjustment, avoiding the phenomenon of stiffness at the connection point due to rigid installation. In addition, the joint bearing 230 also has self-aligning and positioning functions, and can withstand large loads.

[0040] When the position and attitude of the APU system are fine-tuned, the attitude of the top support frame 100 is controlled by rising or falling of the three groups of fine-tuning components 200, thereby achieving the attitude adjustment of the APU system and ensuring the accurate installation of the APU system. When the hand-cranked lifts 210 in the three groups of fine-tuning components 200 rise or fall at the same speed, the top support frame 100 rises and falls in the Z direction, further realizing height fine-tuning; when the only group of fine-tuning components 200 on the left rises or falls or the two groups of fine-tuning components 200 on the right rise or fall at the same speed, the top support frame 100 swings sideways around the Y direction to realize angle fine-tuning; when the only group of fine-tuning components 200 on the left rises or falls, and at the same time one group of fine-tuning components 200 in the two groups of fine-tuning components 200 on the right rises or falls at the same speed, the top support frame 100 swings sideways with the other group of fine-tuning components 200 on the right as the fulcrum to realize angle fine-tuning; when one of the two groups of fine-tuning components 200 on the right rises or falls, the top support frame 100 swings sideways around the diagonal line to realize angle fine-tuning.

[0041] It should be noted that the number of fine-tuning components 200 in the present application is not limited to three groups, but may also be four groups, which are respectively arranged on the left and right sides of the top support frame 100.

[0042] like Figure 2 and Figure 5 As shown, the X / Y direction adjustment assembly 400 includes an X direction adjustment group 410, a Y direction adjustment group 420 and an adapter 430. The X direction adjustment group 410 is horizontally installed at the bottom end of the heading adjustment frame 300 along the X direction, and the Y direction adjustment group 420 is horizontally installed at the top end of the span adjustment frame 500 along the Y direction. The X direction adjustment group 410 and the Y direction adjustment group 420 are connected through the adapter 430. Through the setting of the X direction adjustment group 410, the top support frame 100, the fine adjustment assembly 200 and the heading adjustment frame 300 are moved along the X direction as a whole, thereby realizing the position adjustment of the APU system in the X direction; through the setting of the Y direction adjustment group 420, the top support frame 100, the fine adjustment assembly 200, the heading adjustment frame 300 and the X direction adjustment group 410 are moved along the Y direction as a whole, thereby realizing the position adjustment of the APU system in the Y direction.

[0043] It should be noted that in the present application, the X-direction adjustment group 410 is arranged above the Y-direction adjustment group 420, and the X-direction adjustment group 410 can also be arranged below the Y-direction adjustment group 420, as long as the position adjustment of the APU system in the X and Y directions can be achieved.

[0044] Specifically, the X-axis adjustment group 410 includes an X-axis frame 411, an X-axis screw rod 412, an X-axis screw rod nut 413, an X-axis slider 414 and an X-axis handle 415. The top of the X-axis frame 411 is connected to the bottom end of the heading adjustment frame 300. The X-axis screw rod 412 is rotatably installed in the middle of the bottom end of the X-axis frame 411 and is horizontally arranged along the X direction. The X-axis screw rod nut 413 is threadedly sleeved on the X-axis screw rod 412. The X-axis slider 414 is respectively installed at both ends of the X-axis screw rod nut 413 along the Y direction. The top of the X-axis slider 414 is slidably connected to the bottom end of the X-axis frame 411, and its bottom end is connected to the top end of the adapter 430. The X-axis handle 415 is connected to one end of the X-axis screw rod 412. The Y-axis adjustment group 420 includes a Y-axis frame 421, a Y-axis screw rod 422, a Y-axis screw rod nut 423, a Y-axis slider 424 and a Y-axis handle 425. The bottom end of the Y-axis frame 421 is connected to the top end of the span adjustment frame 500. The Y-axis screw rod 422 is rotatably installed in the middle of the top end of the Y-axis frame 421 and is horizontally arranged along the Y direction. The Y-axis screw rod nut 423 is threadedly sleeved on the Y-axis screw rod 422. The Y-axis slider 424 is respectively installed at both ends of the Y-axis screw rod nut 423 along the X direction. The bottom end of the Y-axis slider 424 is slidably connected to the top end of the Y-axis frame 421, and its top end is connected to the bottom end of the adapter 430. The Y-axis handle 425 is connected to one end of the Y-axis screw rod 422.

[0045] like Figure 6 and Figure 7 As shown, the Z-axis rotation assembly 600 includes a rotating base 610, a rotating disk 620, a central shaft 630, a thrust ball bearing 640 and a deep groove bearing 650. A groove 660 is provided at the top center of the rotating base 610. The thrust ball bearing 640 is installed at the bottom of the groove 660. The central shaft 630 is vertically installed at the bottom center of the groove 660. The rotating disk 620 is sleeved on the top of the central shaft 630 through the deep groove bearing 650. The bottom edge of the rotating disk 620 is connected to the thrust ball bearing 640. The top of the rotating disk 620 is connected to the bottom end of the span adjustment frame 500. When the Z-axis is rotated and adjusted, the span adjustment frame 500 is manually pushed to achieve rotation through the rotating disk 620, thereby achieving rotation adjustment of the APU system.

[0046] like Figure 8 and Fig. 9As shown, the lifting assembly 700 includes an electric lift 710, a mounting frame 720, an electric control cabinet 730 and a remote controller 740. The electric lift 710 is vertically mounted on the mounting frame 720, and its driving end is connected to the bottom center of the rotating base 610. The electric control cabinet 730 is arranged in the mounting frame 720 to control the lifting of the electric lift 710. The remote controller 740 is arranged on the outer wall of the mounting frame 720 and is connected to the electric control cabinet 730 for communication. The lifting assembly 700 adopts the electric lift 710. Compared with the multi-stage hydraulic cylinder lifting, the electric lift 710 is driven by a servo motor, and the lifting stroke can be accurately controlled. With the control of its own algorithm, the start and stop of the electric lift 710 during the lifting process are more stable, more environmentally friendly, more energy-saving, more durable, and low in after-sales service cost. In addition, the electric control cabinet 730 can be remotely controlled by the remote controller 740 to control the multi-gear lifting of the electric lift 710, and it has a self-locking function, which can meet the stopping of any height.

[0047] Specifically, the electric lift 710 is also a trapezoidal worm gear structure, which is a prior art, and its driving force comes from the servo motor on the electric lift 710; the electric lift 710 is set to three gears for lifting: in gear 1, the front half of the stroke can rise quickly, and the rear half can rise slowly, wherein the stroke position and rising speed of the front and rear halves are determined through debugging; in gear 2, it is lifted slowly, and the lifting speed can be determined according to on-site debugging; in gear 3, it is lifted at a fixed height to ensure the precise installation of the APU system, that is, the button on the remote control 740 is pressed once, and the lifting height is 1mm, and the lifting height can be determined specifically according to on-site assembly and debugging.

[0048] like Figure 6 and Figure 7 As shown, the Z-axis rotation assembly 600 also includes a circumferential limit group 670 for mechanically limiting the rotation angle of the rotating disk 620. The circumferential limit group 670 includes a limit support 671, a limit shaft 672, a large washer 673 and a fixed handle 674. The limit support 671 is installed at the bottom end of the span adjustment frame 500. An arc-shaped limit hole 675 is opened on the rotating base 610. The limit shaft 672 passes through the arc-shaped limit hole 675 and slides with the arc-shaped limit hole 675. The top end of the limit shaft 672 is connected to the limit support 671, and the bottom end thereof is connected to the fixed handle 674. The large washer 673 is sleeved on the limit shaft 672, and the top end of the large washer 673 conflicts with the rotating base 610, and the bottom end thereof conflicts with the fixed handle 674. By setting the circumferential limiter group 670, the rotation angle of the rotating disk 620 is mechanically limited to prevent the rotating disk 620 from rotating too much. Specifically, the arc of the arc-shaped limiter hole 675 is 25 degrees.

[0049] like Figure 8 and Fig. 9As shown, in order to prevent the electric lift 710 from stopping working due to a servo motor failure in the electric lift 710, the lifting assembly 700 also includes a ratchet handle assembly 750, which includes a transmission shaft 751, a coupling 752 and a handle 753. The transmission shaft 751 is rotatably mounted on the top of the mounting frame 720, and one end of the transmission shaft 751 is connected to the input shaft in the electric lift 710 through the coupling 752, and the other end is connected to the handle 753. When the servo motor in the electric lift 710 fails, the electric lift 710 can be operated normally by manually rotating the handle 753. Specifically, the transmission shaft 751 is mounted on the top of the mounting frame 720 through a bearing seat.

[0050] like Figure 8 and Fig.10 As shown, the APU lifting tooling also includes a bottom support assembly 800, which includes a bottom frame 810, casters 820, legs 830, lifting rings 840 and handrails 850. The top center of the bottom frame 810 is connected to the bottom end of the mounting frame 720, the casters 820 are respectively installed at the four corners of the bottom end of the bottom frame 810, the legs 830 are respectively installed at the four corners of the bottom frame 810, the lifting rings 840 are respectively installed at the four corners of the top end of the bottom frame 810, and the handrail 850 is installed in the middle of one side of the bottom frame 810. The arrangement of the bottom support assembly 800 facilitates the movement of the entire tooling.

[0051] Example 2

[0052] like Figure 8 As shown, this embodiment adds a guide assembly 900 on the basis of embodiment 1. The guide assembly 900 is divided into four groups and is evenly arranged along the circumference of the electric lift 710. The guide assembly 900 includes a linear bearing 910 and a guide shaft 920. The linear bearing 910 is installed at the top of the mounting frame 720. The guide shaft 920 passes through the linear bearing 910 and slides with the linear bearing 910. The top of the guide shaft 920 is connected to the rotating base 610, and its bottom extends into the mounting frame 720. The guide assembly 900 ensures that the APU system can be lifted and lowered along the guide shaft 920 during the lifting process to avoid shaking, thereby ensuring the stability of the posture of the APU system during the lifting process.

[0053] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with this technology to understand the content of the utility model and implement it. They cannot be used to limit the protection scope of the utility model. All equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. An APU lifting tool, comprising a top support frame (100), a fine adjustment component (200), a heading adjustment frame (300), an X / Y direction adjustment component (400), a span adjustment frame (500), a Z-axis rotation component (600) and a lifting component (700), wherein the lifting component (700) is vertically arranged with its driving end facing upward, the bottom end of the Z-axis rotation component (600) is connected to the driving end of the lifting component (700), and the top end of the Z-axis rotation component (600) is connected to the bottom end of the span adjustment frame (500), and the top end of the span adjustment frame (500) is connected to the bottom end of the heading adjustment frame (300) through the X / Y direction adjustment component (400), characterized in that: The fine-tuning assembly (200) comprises A hand-cranked lift (210) is vertically mounted on one side of the heading adjustment frame (300) with its driving end facing upward; A connecting shaft (220) is horizontally mounted in a U-shaped notch (110) at the end of the top supporting frame (100); A joint bearing (230) is installed at the driving end of the hand-cranked lift (210) and is slidably sleeved in the middle of the connecting shaft (220); The fine adjustment components (200) are divided into three groups, one group is fixedly mounted on one side of the heading adjustment frame (300), and the other two groups are relatively movably mounted on the other side of the heading adjustment frame (300) along the X direction.

2. The APU lifting tool according to claim 1, characterized in that: The X / Y direction adjustment assembly (400) comprises an X direction adjustment group (410), a Y direction adjustment group (420) and an adapter (430); the X direction adjustment group (410) is horizontally mounted on the bottom end of a heading adjustment frame (300) along the X direction; the Y direction adjustment group (420) is horizontally mounted on the top end of a span adjustment frame (500) along the Y direction; and the X direction adjustment group (410) and the Y direction adjustment group (420) are connected via the adapter (430).

3. The APU lifting tool according to claim 2, characterized in that: The X-direction adjustment group (410) comprises an X-direction frame (411), an X-direction screw rod (412), an X-direction screw rod nut (413), an X-direction slider (414) and an X-direction handle (415). The top end of the X-direction frame (411) is connected to the bottom end of the heading adjustment frame (300). The X-direction screw rod (412) is rotatably mounted at the middle of the bottom end of the X-direction frame (411) and is horizontally arranged along the X direction. The X-direction screw rod nut (413) is threadedly sleeved on the X-direction screw rod (412). The X-direction slider (414) is respectively mounted at both ends of the X-direction screw rod nut (413) along the Y direction. The top end of the X-direction slider (414) is slidably connected to the bottom end of the X-direction frame (411), and the bottom end thereof is connected to the top end of the adapter (430). The X-direction handle (415) is connected to one end of the X-direction screw rod (412).

4. The APU lifting tool according to claim 2, characterized in that: The Y-direction adjustment group (420) comprises a Y-direction frame (421), a Y-direction screw rod (422), a Y-direction screw rod nut (423), a Y-direction slider (424) and a Y-direction handle (425). The bottom end of the Y-direction frame (421) is connected to the top end of the span adjustment frame (500). The Y-direction screw rod (422) is rotatably mounted at the middle of the top end of the Y-direction frame (421) and is horizontally arranged along the Y direction. The Y-direction screw rod nut (423) is threadedly sleeved on the Y-direction screw rod (422). The Y-direction slider (424) is respectively mounted at both ends of the Y-direction screw rod nut (423) along the X direction. The bottom end of the Y-direction slider (424) is slidably connected to the top end of the Y-direction frame (421), and the top end thereof is connected to the bottom end of the adapter (430). The Y-direction handle (425) is connected to one end of the Y-direction screw rod (422).

5. The APU lifting tool according to claim 1, characterized in that: The Z-axis rotation assembly (600) comprises a rotating base (610), a rotating disk (620), a central shaft (630), a thrust ball bearing (640) and a deep groove bearing (650); a groove (660) is provided at the center of the top end of the rotating base (610); the thrust ball bearing (640) is installed at the bottom of the groove (660); the central shaft (630) is vertically installed at the center of the bottom of the groove (660); the rotating disk (620) is sleeved on the top end of the central shaft (630) via the deep groove bearing (650); the bottom edge of the rotating disk (620) is connected to the thrust ball bearing (640); and the top end of the rotating disk (620) is connected to the bottom end of the span adjustment frame (500).

6. The APU lifting tool according to claim 5, characterized in that: The lifting assembly (700) includes an electric lift (710), a mounting frame (720), an electric control cabinet (730) and a remote controller (740). The electric lift (710) is vertically mounted on the mounting frame (720), and its driving end is connected to the bottom center of the rotating base (610). The electric control cabinet (730) is arranged in the mounting frame (720) and is used to control the lifting and lowering of the electric lift (710). The remote controller (740) is arranged on the outer wall of the mounting frame (720) and is communicatively connected to the electric control cabinet (730).

7. The APU lifting tool according to claim 5, characterized in that: The invention also includes a circumferential limit group (670) for mechanically limiting the rotation angle of the rotating disk (620), the circumferential limit group (670) including a limit support (671), a limit shaft (672), a large washer (673) and a fixed handle (674), the limit support (671) is installed at the bottom end of the span adjustment frame (500), the rotating base (610) is provided with an arc-shaped limit hole (675), the limit The shaft (672) passes through the arc-shaped limiting hole (675) and is slidably matched with the arc-shaped limiting hole (675). The top end of the limiting shaft (672) is connected to the limiting support (671), and the bottom end thereof is connected to the fixed handle (674). The large washer (673) is sleeved on the limiting shaft (672), and the top end of the large washer (673) is in contact with the rotating base (610), and the bottom end thereof is in contact with the fixed handle (674).

8. The APU lifting tool according to claim 6, characterized in that: It also includes a ratchet handle assembly (750), which includes a transmission shaft (751), a coupling (752) and a handle (753). The transmission shaft (751) is rotatably mounted on the top of the mounting frame (720), one end of the transmission shaft (751) is connected to the input shaft in the electric lift (710) through the coupling (752), and the other end is connected to the handle (753).

9. The APU lifting tool according to claim 6, characterized in that: It also includes a bottom support assembly (800), which includes a bottom frame (810), casters (820), legs (830), a lifting ring (840) and a handrail (850). The top center of the bottom frame (810) is connected to the bottom end of the mounting frame (720), the casters (820) are respectively installed at the four corners of the bottom end of the bottom frame (810), the legs (830) are respectively installed at the four corners of the bottom frame (810), the lifting ring (840) is respectively installed at the four corners of the top end of the bottom frame (810), and the handrail (850) is installed in the middle of one side of the bottom frame (810).

10. The APU lifting tool according to claim 6, characterized in that: It also includes a guide assembly (900), which is divided into four groups and is evenly arranged along the circumference of the electric lift (710). The guide assembly (900) includes a linear bearing (910) and a guide shaft (920). The linear bearing (910) is installed on the top of the mounting frame (720). The guide shaft (920) passes through the linear bearing (910) and is slidably matched with the linear bearing (910). The top end of the guide shaft (920) is connected to the rotating base (610), and its bottom end extends into the mounting frame (720).

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