Jacking equipment for aircraft maintenance

Abstract

The utility model relates to the technical field of aircraft maintenance equipment, in particular to aircraft maintenance jacking equipment which comprises a fixing pipe, three supporting legs are fixedly connected to the fixing pipe and evenly distributed in the circumferential direction of the fixing pipe, a fixing bearing is arranged in the fixing pipe, and a first threaded rod is arranged in the fixing bearing in a penetrating mode; the top of the first threaded rod is connected with a top block, the first threaded rod is sleeved with a threaded sleeve in a threaded mode, the threaded sleeve is connected with an inner ring of the fixed bearing, the threaded sleeve is fixedly connected with a first handle, the fixed pipe is fixedly connected with a guide block, and the first threaded rod is provided with a sliding groove for the guide block to slide. The side wall of the guide block is slidably attached to the inner wall of the sliding groove. The jacking device has the advantages that the jacking device is simple in structure, free of external energy, high in precision and high in safety, and the diversified requirements of aircraft maintenance scenes are met.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of aircraft maintenance equipment technology especially to a jacking equipment for aircraft maintenance. BACKGROUND

[0002] In the field of aircraft maintenance, jacking equipment is the core tool to ensure the safe disassembly and installation of large components such as fuselage and wings. Currently, the mainstream jacking equipment mainly relies on electric or pneumatic driving mode, but there are the following significant problems in actual application:

[0003] Strong dependence on external energy: electric jacking equipment needs stable power supply, while pneumatic equipment relies on external air source. In the field or environment lacking stable energy supply (such as field airport, temporary maintenance point), the use of such equipment is greatly limited, and additional power generation device or air pump needs to be configured, increasing the operation complexity and equipment transportation cost.

[0004] Insufficient control accuracy and safety: electric driving is easily affected by sensor errors, circuit interference and other factors, making it difficult to guarantee the fine-tuning accuracy during jacking process; pneumatic system has the risk of action lag or loss of control caused by air pressure fluctuation. For example, sudden release of high-pressure gas in pneumatic jacking device may cause equipment to drop suddenly, threatening the safety of maintenance personnel and aircraft structure.

[0005] Complex structure and high cost: existing electric or pneumatic jacking equipment usually needs to integrate components such as motor, controller, air pump and sensor, resulting in large equipment size and high maintenance cost. For example, some pneumatic jacking devices need to realize synchronous control through complex air path design and multi-stage cylinder cooperation, which not only has high manufacturing cost, but also has high failure rate.

[0006] Poor environmental adaptability: electric equipment is sensitive to humidity and dust, and pneumatic system is prone to performance decline due to gas liquefaction in low temperature environment. In complex working conditions (such as high altitude and dusty environment), the reliability of existing equipment is significantly reduced, which is difficult to meet the high standard requirements of aviation maintenance. INVENTION CONTENTS

[0007] In order to make the structure of jacking equipment simple, without external energy, with high precision and high safety, to meet the diversified needs of aircraft maintenance scene, the application provides a jacking equipment for aircraft maintenance.

[0008] The jacking equipment for aircraft maintenance provided by the application adopts the following technical scheme:

[0009] The utility model provides an aircraft maintenance jacking device, including fixed pipe, fixed pipe is connected with support leg, three even distribution of support leg along the circumference of fixed pipe, fixed bearing is arranged in fixed pipe, first threaded rod is arranged in fixed bearing, the top of first threaded rod is connected with top block, threaded sleeve is sleeved on first threaded rod, threaded sleeve is connected with the inner ring of fixed bearing, first handle is fixedly connected on threaded sleeve, guide block is fixedly connected on fixed pipe, the sliding groove of guide block is seted up on first threaded rod, the side wall of guide block is slidably connected with the inner wall of sliding groove.

[0010] Preferably, the connecting bolt is connected between the fixed pipe and the fixed bearing, the blind hole is set up on the fixed pipe for the connecting bolt to pass through, and the first connecting hole is set up on the outer ring of the fixed bearing for the connecting bolt to connect.

[0011] Preferably, the connecting plate is fixedly connected on the inner ring of the fixed bearing, the connecting plate is arranged in a circular ring shape, the axis of the connecting plate is arranged in line with the axis of the fixed bearing, the fixed bolt is connected between the threaded sleeve and the connecting plate, the through hole is set up on the threaded sleeve for the fixed bolt to pass through, and the second connecting hole is set up on the connecting plate for the fixed bolt to connect.

[0012] Preferably, the reinforcing rod is fixedly connected on the support leg, and the reinforcing rod is located between two adjacent support legs.

[0013] Preferably, the universal wheel is arranged below the reinforcing rod, the fixing plate is arranged on the universal wheel, the second threaded rod is connected on the fixing plate, the threaded hole is set up on the reinforcing rod for the second threaded rod to connect, the second handle is clamped on the end of the reinforcing rod through the second threaded rod, and the mounting hole is set up on the second threaded rod for the second handle to pass through.

[0014] Preferably, the support plate is fixedly connected on the support leg, and the support plate is located at the end of the support leg and supports on the ground.

[0015] To sum up, the utility model includes the following beneficial technical effects:

[0016] The jacking equipment for airplane maintenance provided by the utility model realizes the lifting of the jacking block in the jacking equipment through the full mechanical structure, can jacks up the maintenance position of the airplane, the maintenance personnel directly perceives the pressure change through physical operation, avoids the sudden action caused by the sensor error or program failure of the electric system, thereby reduces the risk, and does not need external power equipment in the maintenance site, is more advantageous in the emergency, furthermore, the full mechanical structure is simple in structure, convenient to maintain and low in manufacturing cost, thereby achieves the effects that the jacking equipment is simple in structure, does not need external energy, has high precision and high safety, and meets the diversified needs of the airplane maintenance scene. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is the first perspective view of the jacking equipment for airplane maintenance in the embodiment of the application;

[0018] Figure 2 is the second perspective view of the jacking equipment for airplane maintenance in the embodiment of the application;

[0019] Figure 3 is the schematic view for embodying the fixed bearing in the embodiment of the application;

[0020] Figure 4 is Figure 1 the enlarged view of A in the figure.

[0021] Mark explanation: 1, fixed tube; 11, support leg; 111, reinforcing rod; 112, support plate; 12, guide block; 2, fixed bearing; 21, connecting plate; 3, first threaded rod; 31, jacking block; 32, threaded sleeve; 33, first handle; 34, sliding slot; 4, connecting bolt; 5, fixed bolt; 6, universal wheel; 61, fixed plate; 62, second threaded rod; 63, second handle. DETAILED DESCRIPTION

[0022] In order to make the personnel in the art better understand the utility model scheme, the scheme in the embodiment of the utility model will be described clearly and completely in combination with the drawings below, obviously, the described embodiment is only a part of the embodiment of the utility model, rather than all the embodiments, based on the embodiment in the utility model, all other embodiments obtained by the personnel in the art without creative labor should belong to the protection range of the utility model.

[0023] In the description of the utility model, it is necessary to explain that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model; the terms "first", "second" and "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance, and in addition, unless otherwise explicitly specified and limited, the terms "mounting", "connection" and "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0024] The utility model discloses a lifting equipment for aircraft maintenance. Figure 1 、 Figure 2 、 Figure 3 And Figure 4 , the lifting equipment for aircraft maintenance includes fixed pipe 1, is fixedly connected with support leg 11 on fixed pipe 1, three are evenly arranged along the circumference of fixed pipe 1, fixed bearing 2 is arranged in fixed pipe 1, first threaded rod 3 is arranged in fixed bearing 2, the top of first threaded rod 3 is connected with top block 31, threaded sleeve 32 is threadedly sleeved on first threaded rod 3, threaded sleeve 32 is connected with the inner ring of fixed bearing 2, first handle 33 is fixedly connected on threaded sleeve 32, guide block 12 is fixedly connected on fixed pipe 1, sliding groove 34 is formed in first threaded rod 3 for the sliding of guide block 12, and the side wall of guide block 12 is slidably attached to the inner wall of sliding groove 34.

[0025] Connecting bolt 4 is connected between fixed pipe 1 and fixed bearing 2, blind hole is formed in fixed pipe 1 for the penetration of connecting bolt 4, and first connecting hole is formed in the outer ring of fixed bearing 2 for the connection of connecting bolt 4.

[0026] Connecting plate 21 is fixedly connected to the inner ring of fixed bearing 2, and connecting plate 21 is arranged in a circular ring shape, the axis of connecting plate 21 is arranged in line with the axis of fixed bearing 2, fixed bolt 5 is connected between threaded sleeve 32 and connecting plate 21, through hole is formed in threaded sleeve 32 for the penetration of fixed bolt 5, and second connecting hole is formed in connecting plate 21 for the connection of fixed bolt 5.

[0027] Reinforcing rod 111 is fixedly connected to support leg 11, and reinforcing rod 111 is located between two adjacent support legs 11.

[0028] A universal wheel 6 is arranged below the reinforcing rod 111, the universal wheel 6 is provided with a fixing plate 61, a second threaded rod 62 is connected to the fixing plate 61, a threaded hole for connecting the second threaded rod 62 is arranged on the reinforcing rod 111, the second threaded rod 62 passes through the end of the reinforcing rod 111 and is clamped with a second handle 63, and a mounting hole for the second handle 63 to pass through is arranged on the second threaded rod 62.

[0029] The support leg 11 is fixedly connected with a support plate 112, the support plate 112 is located at the end of the support leg 11 and is supported on the ground.

[0030] The implementation principle of the lifting device for aircraft maintenance is as follows: when operating, the maintenance personnel places the lifting device on the ground and below the maintenance part, then manually rotates the threaded sleeve 32 through the first handle 33, the first threaded rod 3 in the threaded sleeve 32 can move along the length direction of the first threaded rod 3 under the guiding and limiting action of the guide block 12, and the first threaded rod 3 can drive the lifting block 31 to move up and down, so as to lift or lower the maintenance part of the aircraft.

[0031] When the lifting device needs to be moved, the second threaded rod 62 can be manually rotated through the second handle 63, so that the universal wheel 6 is lowered to lift the device, and the device can be moved.

[0032] The lifting of the lifting block 31 in the lifting device is realized through a full mechanical structure, the maintenance part of the aircraft can be lifted, the maintenance personnel directly perceives the pressure change through physical operation, sudden actions caused by sensor errors or program faults of the electric system are avoided, risks are reduced, external power equipment is not needed in the maintenance site, and in an emergency, the full mechanical structure is simple in structure, convenient to maintain, and low in manufacturing cost, so that the lifting device is simple in structure, does not need external energy, has high precision and high safety, and the diversified needs of the aircraft maintenance scene are met.

[0033] Finally, it should be noted that: the above is only the preferred embodiment of the present application, the protection scope of the present application is not limited to the above-mentioned embodiments, any technical solution belonging to the idea of the present application is within the protection scope of the present application. It should be pointed out that, for ordinary skilled in the art, some improvements and decorations without departing from the principle of the present application can also be considered as the protection scope of the present application.

Claims

1. A lifting device for aircraft maintenance, characterized in that: The device includes a fixed tube (1), on which a support leg (11) is fixedly connected. Three support legs (11) are evenly arranged around the circumference of the fixed tube (1). A fixed bearing (2) is installed inside the fixed tube (1). A first threaded rod (3) is inserted inside the fixed bearing (2). A top block (31) is connected to the top of the first threaded rod (3). A threaded sleeve (32) is threaded onto the first threaded rod (3). The threaded sleeve (32) is connected to the inner ring of the fixed bearing (2). A first handle (33) is fixedly connected to the threaded sleeve (32). A guide block (12) is fixedly connected to the fixed tube (1). A groove (34) is provided on the first threaded rod (3) for the guide block (12) to slide. The side wall of the guide block (12) slides against the inner wall of the groove (34).

2. The lifting device for aircraft maintenance according to claim 1, characterized in that: A connecting bolt (4) is connected between the fixed tube (1) and the fixed bearing (2). A blind hole is provided on the fixed tube (1) for the connecting bolt (4) to pass through, and a first connecting hole is provided on the outer ring of the fixed bearing (2) for the connecting bolt (4) to connect.

3. The lifting device for aircraft maintenance according to claim 1, characterized in that: A connecting plate (21) is fixedly connected to the inner ring of the fixed bearing (2). The connecting plate (21) is arranged in a circular shape. The axis of the connecting plate (21) is collinear with the axis of the fixed bearing (2). A fixing bolt (5) is connected between the threaded sleeve (32) and the connecting plate (21). The threaded sleeve (32) has a through hole for the fixing bolt (5) to pass through. The connecting plate (21) has a second connecting hole for the fixing bolt (5) to connect.

4. The lifting device for aircraft maintenance according to claim 1, characterized in that: A reinforcing rod (111) is fixedly connected to the support leg (11), and the reinforcing rod (111) is located between two adjacent support legs (11).

5. The lifting device for aircraft maintenance according to claim 4, characterized in that: A caster wheel (6) is provided below the reinforcing rod (111). A fixing plate (61) is provided on the caster wheel (6). A second threaded rod (62) is connected to the fixing plate (61). A threaded hole for the second threaded rod (62) is provided on the reinforcing rod (111). A second handle (63) is attached to the end of the second threaded rod (62) that passes through the reinforcing rod (111). An installation hole for the second handle (63) to pass through is provided on the second threaded rod (62).

6. The lifting device for aircraft maintenance according to claim 1, characterized in that: A support plate (112) is fixedly connected to the support leg (11), and the support plate (112) is located at the end of the support leg (11) and supported on the ground.

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