Two-section type electric jacking device

Abstract

The utility model discloses a two-section type electric jacking device which comprises a bottom plate, a jacking assembly and lifting mechanisms, the lifting mechanisms are connected with the bottom plate, the number of the lifting mechanisms is at least three, the three lifting mechanisms are arranged on the bottom plate in an array mode, the jacking assembly is arranged between the lifting mechanisms, and the jacking assembly is arranged between the lifting mechanisms. The lifting mechanism is used for supporting the bottom plate and adjusting the height of the bottom plate; the lifting mechanism is arranged on the bottom plate, the lifting mechanism is arranged on the edge of the bottom plate, the jacking assembly is arranged at the geometric center of the bottom plate, the bottom plate can be stably lifted through movement of the lifting mechanism, and therefore the height of the jacking assembly is further increased, and two-section type jacking of an airplane can be stably achieved. The jacking height of the airplane is increased, and the stability of the jacking device is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of aircraft ground maintenance equipment, and specifically relates to a two-stage electric jacking device. Background Art

[0002] Electric jacking devices are usually used when assembling aircraft skins. They serve as supporting equipment on the ground to support and lift the aircraft. However, traditional electric jacking devices are usually one-stage jacking and lifting devices. The lifting height of the aircraft is limited by the maximum height of the jacking assembly. If the aircraft needs to be lifted to a higher height due to special working conditions, this cannot be achieved. If the length of the jacking assembly is made too long, the center of gravity of the jacking device may be unstable, making it prone to rollover. Utility Model Content

[0003] The utility model aims to provide a two-stage electric jacking device, which can stably raise a bottom plate and a jacking assembly at the same time through a lifting mechanism, thereby performing a two-stage jacking and lifting of an aircraft, while keeping the jacking device itself stable.

[0004] The utility model is realized by the following technical solutions:

[0005] A two-stage electric lifting device includes a base plate, a lifting assembly and a lifting mechanism, wherein the lifting mechanism is connected to the base plate, the lifting mechanism includes at least three groups, and the three groups of lifting mechanisms are arranged in an array on the base plate. The lifting assembly is arranged between the lifting mechanisms, and the lifting mechanism is used to support the base plate and adjust the height of the base plate.

[0006] Furthermore, the lifting mechanism includes a support foot, a worm assembly and a servo motor; the support foot is arranged below the base plate and connected to the worm assembly, and the servo motor is arranged on the base plate and connected to the worm assembly.

[0007] Furthermore, the worm assembly includes a turbine and a worm, the turbine and the worm are rotationally connected, the servo motor is connected to the turbine, the support foot is connected to the worm, and the housing is sleeved on the worm.

[0008] Furthermore, a dust cover is provided on the worm.

[0009] Furthermore, a cover plate is arranged on the bottom plate, and the dustproof shell passes through the cover plate and is protruded on the surface of the cover plate.

[0010] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0011] 1) In the utility model, a lifting mechanism is arranged on the bottom plate, the lifting mechanism is arranged at the edge of the bottom plate, and the jacking assembly is arranged at the geometric center of the bottom plate. The bottom plate can be stably raised through the movement of the lifting mechanism, so that the height of the jacking assembly is further increased, so that the aircraft can be stably lifted in two stages, the height of the aircraft lifting is increased, and the stability of the jacking device is ensured.

[0012] 2) In the utility model, a cover plate is arranged on the bottom plate, which can protect and prevent dust from the components on the bottom plate, and at the same time prevent the components in the jacking device from causing harm to the operator; in addition, after the cover plate is arranged, the surface of the jacking device is simple, which is convenient for transportation and installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0014] Figure 1 It is a side view of the two-stage electric lifting device in the utility model.

[0015] Figure 2 It is a top view of the two-stage electric lifting device in the utility model.

[0016] Among them: 1-base plate, 2-lifting assembly, 3-worm assembly, 4-dustproof shell, 5-support foot, 6-servo motor, 7-cover plate. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments.

[0018] Embodiment 1:

[0019] The main structure of this embodiment is a two-stage electric lifting device, such as Figure 1 and Figure 2 As shown, it includes a base plate 1, a lifting component 2 and a lifting mechanism, the lifting mechanism is connected to the base plate 1, the lifting mechanism includes at least three groups, the three groups of lifting mechanisms are arranged in an array on the base plate 1, the lifting component 2 is arranged between the lifting mechanisms, and the lifting mechanism is used to support the base plate 1 and adjust the height of the base plate 1.

[0020] In the electric jacking device, the base plate 1 serves as a supporting machine structure, carrying the jacking assembly 2. The jacking assembly 2 includes a top head, which abuts against the aircraft to support the aircraft. An aircraft usually requires multiple jacking devices for support; a lifting mechanism is provided on the base plate 1, and the lifting mechanism can lift or lower the base plate 1 as a whole, so that the jacking device can be adjusted in two stages. The lifting mechanism is connected to the base plate 1, and three groups of lifting mechanisms are provided on one base plate 1. The base plate 1 is preferably a triangular plane structure. The lifting mechanisms are arranged on the three corners of the base plate 1, and the jacking assembly 2 is arranged at the geometric center position of the base plate 1; during the lifting process of the aircraft, the jacking assembly 2 is provided with a jack rod, a motor and a gear set, and the motor can drive the wheel set to drive the jack rod to rise and lift the aircraft; when the supporting height of the aircraft by the jacking assembly 2 is not enough, starting the lifting assembly can smoothly raise the base plate 1 and the jacking assembly 2, thereby further improving the supporting height of the aircraft.

[0021] Embodiment 2:

[0022] Based on the above embodiments, the present embodiment further defines a lifting mechanism, which includes a support foot 5, a worm assembly 3 and a servo motor 6; the support foot 5 is arranged below the base plate 1 and connected to the worm assembly 3, and the servo motor 6 is arranged on the base plate 1 and connected to the worm assembly 3; the worm assembly 3 includes a turbine and a worm, the turbine and the worm are rotationally connected, the servo motor 6 is connected to the turbine, the support foot 5 is connected to the worm, and the housing is sleeved on the worm; a dust cover 4 is provided on the worm.

[0023] The lifting mechanism includes a support foot 5, a turbine, a worm and a servo motor 6. The worm gear is rotatably connected to each other. The turbine is arranged on the base plate 1. The worm passes through the base plate 1 and is connected to the support foot 5. The servo motor 6 is connected to the turbine. The servo motor 6 provides power to drive the turbine to rotate. The turbine is fixedly arranged. The rotation of the turbine causes the worm to move up and down, thereby being able to raise or lower the height of the base plate 1 as a whole. Preferably, a dust cover 4 is provided on the worm, and the dust cover 4 is sleeved on the worm to prevent dust from entering the worm assembly 3 and to prevent injuries to the operator. The structural principle of each group of lifting mechanisms is the same and will not be repeated here.

[0024] Embodiment 3:

[0025] On the basis of the above embodiment, this embodiment further adds a cover plate 7 . The cover plate 7 is arranged on the bottom plate 1 , and the dustproof shell 4 passes through the cover plate 7 and is protruded on the surface of the cover plate 7 .

[0026] Preferably, a cover plate 7 is provided on the bottom plate 1, and the cover plate 7 is used to protect the lifting mechanism and the lifting assembly 2. The lifting assembly 2 protrudes through the cover plate 7. Similarly, the worm of the lifting mechanism also passes through the cover plate 7 and protrudes on the surface of the cover plate 7. The dust cover 4 is sleeved on the worm and also protrudes from the cover plate 7. The other parts of this embodiment are the same as those of the above embodiment, and will not be repeated here.

[0027] In the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. used to indicate the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, or are the orientation or position relationship in which the utility model product is usually placed when used. They are only for the convenience of describing the present utility model 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 limitation on the present utility model.

[0028] In addition, if the terms "horizontal" or "vertical" appear in the description of the present invention, it does not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0029] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any simple modification or equivalent changes made to the above embodiments based on the technical essence of the present invention shall fall within the protection scope of the present invention.

Claims

1. A two-stage electric lifting device, characterized in that: It includes a base plate, a lifting component and a lifting mechanism, wherein the lifting mechanism is connected to the base plate, the lifting mechanism includes at least three groups, the three groups of lifting mechanisms are arranged in an array on the base plate, the lifting component is arranged between the lifting mechanisms, and the lifting mechanism is used to support the base plate and adjust the height of the base plate.

2. The two-stage electric lifting device according to claim 1, characterized in that: The lifting mechanism comprises a support foot, a worm assembly and a servo motor; the support foot is arranged below the bottom plate and connected to the worm assembly, and the servo motor is arranged on the bottom plate and connected to the worm assembly.

3. The two-stage electric lifting device according to claim 2, characterized in that: The worm assembly comprises a turbine and a worm, the turbine and the worm are rotationally connected, the servo motor is connected to the turbine, and the support foot is connected to the worm.

4. The two-stage electric lifting device according to claim 3, characterized in that: The worm is provided with a dustproof shell.

5. The two-stage electric lifting device according to claim 4, characterized in that: The bottom plate is provided with a cover plate, and the dustproof shell passes through the cover plate and is protrudingly arranged on the surface of the cover plate.

Images