A magnetic levitation vacuum tube inner linear motor stator transfer equipment

Abstract

This utility model discloses a linear motor stator transfer device within a magnetic levitation vacuum pipeline, belonging to the technical field of transfer equipment. The device includes a mobile vehicle and an insulating pad. The mobile vehicle is positioned on and can move along the existing overhead crane's track within the magnetic levitation vacuum pipeline. Two hand-cranked hoists, symmetrically arranged laterally, are mounted on the mobile vehicle for lifting the linear motor stator using a dual-point lifting method. The insulating pad is positioned above the mobile vehicle to provide electrical isolation from the existing circuitry within the vacuum pipeline. This utility model utilizes the existing overhead crane's track within the vacuum pipeline as a load-bearing guide rail, combined with a dual-point lifting structure, enabling rapid and stable transfer and positioning of the linear motor stator under narrow pipeline clearance conditions, improving transfer efficiency and assembly adaptability.

Description

Technical Field

[0001] This utility model belongs to the field of transfer equipment technology, and specifically relates to a linear motor stator transfer device in a magnetic levitation vacuum pipeline. Background Technology

[0002] The Multi-Mode Coupled Rail Transit Dynamic Model Test Platform project is an ultra-high-speed vacuum pipeline transportation test platform. This platform consists of a vacuum pipeline, vacuum generation and maintenance systems, a train model, levitation and guidance systems, traction and braking systems, testing and integrated monitoring systems, and environmental control systems. The pipeline is approximately 1620 meters long with an inner diameter of about 3 meters. The air pressure inside the pipeline can be continuously adjusted within the range of 0.005 to 1.0 standard atmospheres, and the designed test speed can reach 1500 km / h. Through this platform, different low-pressure operating conditions can be simulated, and operation and performance verification tests of vehicles with different maglev modes can be conducted to verify the feasibility and safety of ultra-high-speed rail transit technology.

[0003] During the assembly of this test platform, multiple linear motor stators need to be hoisted and positioned within a vacuum pipeline. Currently, although three overhead cranes are installed within the pipeline for stator transfer and installation, their operating speed is slow (the fastest is only about 0.8 m / s), and they only have a single lifting point structure. Furthermore, the crane body thickness and the size of the electric hoist are significant, occupying limited overhead clearance. This leads to lateral swaying during stator transfer and restricts installation space, resulting in low work efficiency and assembly convenience. In summary, the existing solution cannot meet the requirements for rapid, stable, and safe transfer of linear motor stators within the confined space of a vacuum pipeline. Therefore, a stator transfer device with a more compact structure, higher transfer stability, and greater assembly adaptability is needed. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides a linear motor stator transfer device within a magnetic levitation vacuum pipeline. By arranging the mobile vehicle body on an existing overhead crane track within the vacuum pipeline and employing a double-point hand-cranked hoist structure, it achieves rapid, stable, and safe transfer and installation of the linear motor stator within the narrow pipeline space.

[0005] The technical solution adopted in this utility model is as follows: A stator transfer device for a linear motor inside a magnetically levitated vacuum tube includes: A mobile vehicle body, which is arranged on the existing overhead crane's operating track inside the magnetic levitation vacuum pipe and can move along the operating track; The mobile vehicle is equipped with two hand-cranked hoists symmetrically arranged along the transverse direction of the mobile vehicle, which are used to lift the linear motor stator in a dual-lifting-point manner for transfer and installation in the narrow space of the vacuum tube. The hand-cranked hoist includes an upper hook, which is detachably connected to a mobile vehicle body. A cover is fixedly installed below the upper hook. Inside the cover, a hand chain wheel, a first transmission gear, a second transmission gear, and a lifting sprocket are rotatably installed. The hand chain wheel and the first transmission gear are fixedly connected on the same axis. The second transmission gear and the lifting sprocket are fixedly connected on the same axis. The first transmission gear and the second transmission gear mesh with each other and have different numbers of teeth. The hand chain wheel meshes with a hand chain. The lifting sprocket meshes with a lifting chain. The lifting chain is connected to the lower hook. An insulating pad is installed above the moving vehicle body to form electrical isolation from the existing circuitry within the vacuum pipe.

[0006] Furthermore, the mobile vehicle body includes two symmetrically arranged bottom crossbeams, and two top longitudinal beams and a top crossbeam located above the two bottom crossbeams. The two ends of the top longitudinal beams and the top crossbeams are connected to each other, and the connection between the top longitudinal beams and the top crossbeams is respectively connected to one end of a frame body. The other ends of the four frame bodies are respectively installed on the two bottom crossbeams, and the top crossbeams are detachably connected to the upper hook.

[0007] Furthermore, the mobile vehicle body also includes two sets of symmetrically arranged support rods. Each set of support rods includes two support rods. One end of each support rod is fixedly connected to the main body of the vehicle frame, and the other end of the support rod is fixedly connected to the top longitudinal beam.

[0008] Furthermore, the frame body, top longitudinal beam, and support rod form a closed triangle.

[0009] Furthermore, each bottom crossbeam is equipped with two symmetrically arranged moving wheels.

[0010] Furthermore, a lighting lamp is detachably installed on the top crossbeam.

[0011] The advantages of this utility model compared with the prior art are: (1) This utility model sets up a mobile vehicle body and places the mobile vehicle body on the pre-set guide rail inside the vacuum pipeline, and then transports the linear motor stator through the mobile vehicle body. The transportation speed is fast, which can improve the efficiency of transfer and installation; (2) During the transportation of the linear motor stator by the mobile vehicle body, the linear motor stator is positioned by two hand-cranked hoists, so that the linear motor stator has two fixed points. Compared with the existing single fixed point, the stability of transportation is greatly improved; (3) By setting up lighting on the mobile vehicle body, a bright working environment is provided during the loading and unloading process. While improving the loading and unloading efficiency, the safety of the staff can also be guaranteed. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of the present utility model. Figure 1 .

[0013] Figure 2 This is a schematic diagram of the overall structure of the present utility model. Figure 2 .

[0014] Figure 3 This is a schematic diagram of the overall structure of the present utility model. Figure 3 .

[0015] Reference numerals: 1-Chassis body; 2-Top longitudinal beam; 3-Bottom crossbeam; 4-Support rod; 5-Moving wheel; 6-Hand crank hoist; 7-Lighting lamp; 8-Top crossbeam. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Example: Figures 1-3 The illustrated linear motor stator transfer device in a magnetic levitation vacuum tube includes: The mobile vehicle body is arranged on the existing overhead crane's operating track inside the magnetic levitation vacuum tube and can move along the operating track; Two hand-cranked hoists 6 are symmetrically arranged along the transverse direction of the mobile vehicle body, which are used to lift the linear motor stator in a dual-lifting-point manner for transfer and installation in the narrow space of the vacuum tube. An insulating pad is installed above the moving vehicle body to form electrical isolation from the existing circuitry within the vacuum pipe.

[0018] like Figure 1 , Figure 2 , Figure 3 As shown, when transporting the linear motor stator into the magnetic levitation vacuum pipe, the linear motor stator is first positioned using two hand-cranked hoists 6, and then the moving vehicle is controlled to move along a pre-set track inside the vacuum pipe. The moving vehicle moves the linear motor stator to the designated position, and then the operator removes the linear motor stator from the hand-cranked hoists 6, completing the installation. In this embodiment, the moving vehicle can be pushed by the operator.

[0019] In this embodiment, the insulating pad ensures that the moving vehicle body and the linear motor stator being transported are isolated from the existing circuitry within the vacuum pipe, preventing electric shock to the operator while pushing the moving vehicle and ensuring operator safety. Alternatively, insulating material can be sprayed onto the exterior of the moving vehicle body.

[0020] The mobile vehicle body includes two symmetrically arranged bottom crossbeams 3, and two top longitudinal beams 2 and top crossbeams 8 located above the two bottom crossbeams 3. The two ends of the top longitudinal beams 2 and top crossbeams 8 are connected to each other, and the connection between the top longitudinal beams 2 and the top crossbeams 8 is respectively connected to one end of a frame body 1. The other ends of the four frame bodies 1 are respectively installed on the two bottom crossbeams 3, and two symmetrically arranged mobile wheels 5 are installed on each bottom crossbeam 3.

[0021] like Figure 1 , Figure 2 , Figure 3 As shown, the mobile vehicle body is composed of two bottom crossbeams 3, four frame bodies 1, two top longitudinal beams 2, and two top crossbeams 8. First, the two top longitudinal beams 2 and the two top crossbeams 8 are connected end to end to form a rectangular frame. Then, one end of each pair of frame bodies 1 is fixedly connected to the bottom crossbeam 3 located on one side, and the other end is connected to the connection point of the top longitudinal beam 2 and the top crossbeam 8 to form a stable mobile vehicle body.

[0022] A movable wheel 5 is installed below the bottom crossbeam 3. The movement of the entire mobile vehicle body is completed by the movement of the movable wheel 5 on the track.

[0023] In this embodiment, the top view projection of the rectangular frame formed by the top longitudinal beam 2 and the top cross beam 8 is located between the two bottom cross beams 3, that is, the frame body 1, the bottom cross beams 3 and the top longitudinal beam 2 form a trapezoid. The inside of the magnetic levitation vacuum pipe is arc-shaped, that is, the upper part of the pipe is relatively narrow. Therefore, the rectangular frame formed by the top longitudinal beam 2 and the top cross beam 8 needs to be narrower to facilitate the transportation of the linear motor stator.

[0024] The mobile vehicle also includes two sets of symmetrically arranged support rods 4. Each set of support rods 4 includes two support rods 4, one end of which is fixedly connected to the main frame 1, and the other end of which is fixedly connected to the top longitudinal beam 2. The main frame 1, the top longitudinal beam 2, and the support rods 4 form a closed triangle. A lighting lamp 7 is detachably installed on the top longitudinal beam 2.

[0025] like Figure 1 , Figure 2 , Figure 3 By adding support rod 4, the main body 1 of the frame, the top longitudinal beam 2, and the support rod 4 are arranged into a triangle. Based on the stability of the triangle, the moving vehicle body can be more stable during movement.

[0026] like Figure 1As shown, to facilitate operation and provide a bright operating environment, a lighting lamp 7 is installed on the top crossbeam 8 for illumination. It is conceivable that the number of lighting lamps 7 can be flexibly selected according to actual needs; in this embodiment, the number of lighting lamps 7 is one. The lighting lamp 7 can be fixed to the top crossbeam 8 by bolts or the like. Furthermore, the lighting lamp 7 can be powered by a battery.

[0027] The hand-cranked hoist 6 includes an upper hook, which is detachably connected to the top crossbeam 8. A cover is fixedly installed below the upper hook. Inside the cover, a hand chain wheel, a first transmission gear, a second transmission gear, and a lifting chain wheel are rotatably installed. The hand chain wheel and the first transmission gear are fixedly connected on the same axis. The second transmission gear and the lifting chain wheel are fixedly connected on the same axis. The first transmission gear and the second transmission gear mesh with each other and have different numbers of teeth. The hand chain wheel meshes with the hand chain. The lifting chain wheel meshes with the lifting chain. The lifting chain is connected to the lower hook.

[0028] like Figure 1 As shown, two hand-cranked hoists 6 are symmetrically arranged on the top crossbeam 8. When lifting the linear motor stator, the stator is first hooked with the two lower hooks, and then the hand chain is pulled. At this time, the hand chain drives the hand chain wheel to rotate. The hand chain wheel and the transmission gear are mounted on the housing and rotate on the same axis. Therefore, transmission gear one will rotate, and transmission gear one and transmission gear two mesh, so transmission gear two and the lifting sprocket will rotate simultaneously. The lifting sprocket will drive the lifting chain to rotate, causing the lifting chain to move the lower hooks upward. At this time, the linear motor stator is lifted. After lifting to a suitable height, the movable end of the hand chain can be fixed to the top crossbeam 8. For example, a hook can be fixed to the top crossbeam 8 to secure the hand chain and prevent it from coming loose.

[0029] In this embodiment, the number of teeth of transmission gear one is less than the number of teeth of transmission gear two, thereby increasing the torque.

[0030] After being lifted, the linear motor stator is moved along with the mobile vehicle into the magnetic levitation vacuum pipe for installation. The process of lowering the linear motor stator from the lower hook is the reverse of the lifting process, and will not be described in detail here.

[0031] Unlike existing technologies that utilize overhead cranes within vacuum pipes for direct stator transport, this embodiment does not use the overhead crane itself. Instead, it uses the existing overhead crane's operating track as a guide rail. By placing the mobile vehicle on the existing overhead crane track, stator transfer can be completed without the need for the overhead crane itself. Since the mobile vehicle is significantly thinner than the overhead crane, it occupies less clearance in the narrow space above the vacuum pipe, thus significantly improving the operable space for stator installation and effectively reducing the risk of spatial interference during installation within the vacuum pipe.

[0032] In summary, this invention provides a stator transfer device for a linear motor inside a magnetic levitation vacuum pipeline. By arranging a lightweight mobile vehicle body on an existing overhead crane track inside the vacuum pipeline, and installing two symmetrically arranged hand-cranked hoists on the mobile vehicle body to form a double-lifting-point structure, rapid transfer and precise positioning of the stator are achieved under the narrow overhead clearance conditions of the pipeline, while ensuring safety and insulation. Compared with the traditional method of directly lifting the stator using the overhead crane body, this invention not only significantly reduces the thickness of the equipment and the space occupied above it, but also improves the operational stability during the transfer process by suppressing the lateral sway of the stator through double-lifting-point support, thereby enhancing the stator transfer efficiency and installation operability.

[0033] This invention can be widely applied to magnetic levitation linear motor installation scenarios such as ultra-high-speed vacuum pipeline traffic test platforms. It provides a feasible, easy-to-operate, and safer engineering technology path to solve the problems of limited internal space in vacuum pipelines, slow crane operation, and insufficient stability of single lifting points. It has significant engineering application value for promoting the optimization of the assembly process of magnetic levitation vacuum pipeline test platforms and the integrated construction of such experimental equipment.

[0034] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A linear motor stator transfer device for a magnetically levitated vacuum pipeline, characterized in that, include: A mobile vehicle body, which is arranged on the existing overhead crane's operating track inside the magnetic levitation vacuum pipe and can move along the operating track; The mobile vehicle is equipped with two hand-cranked hoists (6) symmetrically arranged along the transverse direction of the mobile vehicle, which are used to lift the linear motor stator in a double-lifting manner for transport and installation in the narrow space of the vacuum pipe. The hand-cranked hoist (6) includes an upper hook, which is detachably connected to the mobile vehicle body. A cover is fixedly installed below the upper hook. Inside the cover, a hand chain wheel, a first transmission gear, a second transmission gear, and a lifting chain wheel are rotatably installed. The hand chain wheel and the first transmission gear are fixedly connected on the same axis. The second transmission gear and the lifting chain wheel are fixedly connected on the same axis. The first transmission gear and the second transmission gear mesh with each other and have different numbers of teeth. The hand chain wheel meshes with the hand chain. The lifting chain wheel meshes with the lifting chain. The lifting chain is connected to the lower hook. An insulating pad is installed above the moving vehicle body to form electrical isolation from the existing circuitry within the vacuum pipe.

2. The stator transfer device for a linear motor inside a magnetic levitation vacuum pipeline as described in claim 1, characterized in that, The mobile vehicle body includes two symmetrically arranged bottom crossbeams (3), and two top longitudinal beams (2) and top crossbeams (8) located above the two bottom crossbeams (3). The two ends of the top longitudinal beams (2) and top crossbeams (8) are connected to each other, and the connection between the top longitudinal beams (2) and the top crossbeams (8) is respectively connected to one end of a frame body (1). The other ends of the four frame bodies (1) are respectively installed on the two bottom crossbeams (3). The top crossbeams (8) are detachably connected to the upper hook.

3. The linear motor stator transfer device in a magnetic levitation vacuum pipeline as described in claim 2, characterized in that, The mobile vehicle body also includes two sets of symmetrically arranged support rods (4). Each set of support rods (4) includes two support rods (4). One end of the support rod (4) is fixedly connected to the main body of the vehicle frame (1), and the other end of the support rod (4) is fixedly connected to the top longitudinal beam (2).

4. The linear motor stator transfer device in a magnetic levitation vacuum pipeline as described in claim 3, characterized in that, The frame body (1), the top longitudinal beam (2), and the support rod (4) form a closed triangle.

5. The stator transfer device for a linear motor inside a magnetically levitated vacuum pipeline as described in claim 4, characterized in that, Two symmetrically arranged moving wheels (5) are installed on each bottom crossbeam (3).

6. The stator transfer device for a linear motor inside a magnetically levitated vacuum pipeline as described in claim 5, characterized in that, A lighting lamp (7) is detachably installed on the top crossbeam (8).

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