Aerial track structure and aerial carrier system

Abstract

The utility model discloses an air track structure and an air carrier system, and the air track structure comprises a first track body and a second track body which are parallel, have the same height and are arranged at intervals, a protective cover with a U-shaped cross section is arranged between the first track body and the second track body, is connected to the two sides of the first track body and the second track body, and covers the upper parts of the first track body and the second track body; and the protective cover, the first track body and the second track body enclose to form a running channel in which a walking mechanism of the aerial carrier moves. The protective cover is used for protecting the space above the first track body and the second track body in a wrapping manner, so that accumulated dust on the first track body and the second track body cannot be blown off by air blown out by the fan filter unit, and adverse effects caused by the fact that the dust is scattered to a process area are effectively avoided; and the cleanliness of the clean room can be improved.

Description

Technical Field

[0001] This utility model relates to the field of automated material handling, and in particular to aerial rail structures and aerial transport vehicle systems. Background Technology

[0002] The Overhead Hoist Transport (OHT) is one of the most important single-unit devices in the AMHS system. Its main function is to receive instructions from the upper control system and move to the designated position to load or unload the front-opening unified pod (FOUP).

[0003] Patent document CN117131884B discloses a commonly used OHT system.

[0004] In this structure, dust will accumulate on the tracks (including but not limited to dust generated by the wear and tear of the wheels and tracks of the overhead transport vehicle). Since there is no cover above the tracks, and the cleanroom is equipped with fan filter units (FFUs) to purify the air in the cleanroom, when the fan filter units blow air down from the roof, the airflow will blow the dust accumulated on the tracks off, contaminating the process area and causing adverse effects. Utility Model Content

[0005] The purpose of this invention is to solve the above-mentioned problems in the prior art and to provide an aerial track structure and an aerial transport vehicle system.

[0006] The objective of this utility model is achieved through the following technical solution:

[0007] An aerial track structure includes a first track body and a second track body that are parallel, at the same height, and spaced apart. A U-shaped protective cover is provided between the first track body and the second track body, connecting their sides and covering the first track body and the second track body. The protective cover and the first track body and the second track body form an operating channel for the movement of the aerial transport vehicle's traveling mechanism.

[0008] Preferably, the first track body and the second track body are connected to the bottom of the ceiling via a set of adjustment components for leveling and raising the first track body and the second track body.

[0009] Preferably, the adjustment assembly includes a crossbeam spanning above the first track body and the second track body. Two adjustment rods corresponding to the first track body and the second track body are connected to the crossbeam. The adjustment rods are equipped with connectors that can be adjusted in height. One connector is connected to the outside of the first track body, and the other connector is connected to the outside of the second track body.

[0010] Preferably, the vertical portions of the two connectors maintain a gap with the first and second track bodies, and the two side plates of the protective cover are located at the gap between the vertical portions of the two connectors and the first and second track bodies.

[0011] Preferably, the protective cover is connected to the connector.

[0012] Preferably, the protective cover connects the first track body and the second track body through a set of U-shaped fasteners, with the two side connecting portions of the U-shaped fasteners connected to the outside of the first track body and the second track body.

[0013] Preferably, the top plate and side plates of the protective cover are connected to the two side connecting parts and the top plate of the U-shaped fastener.

[0014] Preferably, the first track body and the second track body are further provided with a walking mechanism detection component, the walking mechanism detection component including an outer cover fixed on the first track body and the second track body, the outer cover being connected to the protective cover as one piece.

[0015] Preferably, the outer cover is provided with a testing instrument for detecting at least the outer diameter of the walking wheels of the walking mechanism.

[0016] The aerial transport vehicle system includes any of the aerial track structures described above.

[0017] The advantages of this utility model's technical solution are mainly reflected in:

[0018] This utility model uses a protective cover to enclose the space above the first and second track bodies, so that the air blown out by the fan filter unit will not blow the dust accumulated on the first and second track bodies, effectively avoiding the adverse effects caused by dust spreading to the process area, and helping to improve the cleanliness of the cleanroom.

[0019] The first and second track bodies of this invention are connected to the ceiling via an adjustment component, which allows for convenient height adjustment and leveling of the first and second track bodies, facilitating system assembly and debugging.

[0020] The protective cover of this utility model is connected with the adjustment component and the U-shaped fastener, which can effectively ensure the stability of the protective cover installation, while increasing the connection structure between the various components of the track structure and improving the overall stability of the structure.

[0021] This invention includes a walking mechanism detection component to detect the status of the walking wheels and guide wheels of the walking mechanism, thereby facilitating early warning before the walking wheels and guide wheels malfunction, which helps to reduce the occurrence of accidents. Attached Figure Description

[0022] Figure 1 This is a partial end view of the aerial track structure of this utility model;

[0023] Figure 2 This is a partial side view of the aerial track structure of this utility model;

[0024] Figure 3 This is an end view of the walking mechanism detection component of this utility model, the end guard plate is not shown in the figure;

[0025] Figure 4 This is a top view of the walking mechanism detection component of this utility model; the upper guard plate is not shown in the figure. Detailed Implementation

[0026] The purpose, advantages, and features of this utility model will be illustrated and explained through the following non-limiting description of preferred embodiments. These embodiments are merely typical examples of applying the technical solutions of this utility model, and all technical solutions formed by equivalent substitutions or equivalent transformations fall within the scope of protection claimed by this utility model.

[0027] In the description of the solution, it should be noted that the terms "center," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience and simplification of description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] Example 1

[0029] The aerial track structure disclosed in this utility model will be described below with reference to the accompanying drawings. Like conventional aerial track structures, it comprises a track system composed of multiple track segments, including straight extension sections, curved turning sections, and bifurcation sections. (See attached drawings.) Figure 1 As shown, each track segment includes a first track body 100 and a second track body 200 that are parallel, of equal height, and spaced apart. When the track segment is a straight extension segment, the first track body 100 and the second track body 200 extend in a straight line; when the track segment is an arc-shaped turning segment, the first track body 100 and the second track body 200 are arc-shaped; when the track segment is a forked segment, the shapes of the first track body 100 and the second track body 200 can be set as needed and are not limited here.

[0030] As attached Figure 1 Appendix Figure 2As shown, the first track body 100 and the second track body 200 are connected to the bottom of the ceiling (not shown in the figure) through a set of adjusting components 300 for leveling and height adjustment of the first track body 100 and the second track body 200.

[0031] The adjusting component 300 includes a cross beam 310, the cross beam 310 is spanned above the first track body 100 and the second track body 200, and two adjusting rods 320 corresponding to the first track body 100 and the second track body 200 respectively are connected to both ends of the cross beam 310. The adjusting rod 320 extends along the vertical direction, and a connecting piece 330 is arranged on the adjusting rod 320 with adjustable height. The connecting piece 330 is U-shaped, and the adjusting rod 320 passes through the horizontal part 331 of the connecting piece 330 into the U-shaped groove of the connecting piece 330. At the same time, the connecting piece 330 is connected to the adjusting rod 320 through two nuts 340 threaded on the adjusting rod 320. One nut 340 is located above the horizontal part 331 of the connecting piece 330, and the other nut 340 is located below the horizontal part 331.

[0032] One of the two connecting pieces 330 is connected to the outside of the first track body 100, and the other is connected to the outside of the second track body 200. The two connecting pieces 330 and the first track body 100 and the second track body 200 can be connected by feasible methods such as screwing. For example, the vertical parts 332 of the two connecting pieces 330 can be directly screwed to the first track body 100 and the second track body 200. More preferably, in order to avoid the vertical part 332 affecting the installation of the following protective cover 400, a connecting block 333 is fixed between the two vertical parts 332. At this time, the connecting piece 330 is in a mouth shape, and the connecting piece 330 is connected to the first track body 100 and the second track body 200 through the connecting block 333, and the vertical part 332 is kept at a certain gap from the outer side surfaces of the first track body 100 and the second track body 200. Of course, the connecting piece 330 can also be other feasible shapes, such as a Chinese character "ri" shape, etc.

[0033] As shown in the appendix Figure 1 As shown, a protective cover 400 with a U-shaped cross-section is arranged between the first track body 100 and the second track body 200, and is connected to both sides of them and covers above the first track body 100 and the second track body 200. The notch of the protective cover 400 faces downward and covers the first track body 100 and the second track body 200, so that the protective cover 400 and the first track body 100 and the second track body 200 enclose an operating channel 600 for the traveling mechanism 510 of the aerial transporter 500 to move therein.

[0034] As shown in the appendix Figure 1 and the appendix Figure 2As shown, the protective cover 400 is located between the two connecting members 330 of the adjustment assembly 300 and can be connected to the connecting members 330. The thickness of the two side plates of the protective cover 400 is adapted to the gap between the vertical part 332 of the connecting member 330 and the first track body 100 and the second track body 200, and the side plates are stuck in the gap. The side plates can be connected to the vertical part 332 of the connecting member 330 through an L-shaped adapter 700.

[0035] To further increase the installation stability of the protective cover 400, as shown in the attached... Figure 1 Appendix Figure 2 As shown, the protective cover 400 is also connected to the first track body 100 and the second track body 200 via a set of U-shaped fasteners 800. The two side connecting portions of the U-shaped fasteners 800 are connected to the outer sides of the first track body 100 and the second track body 200 by means of screws or the like. Furthermore, the top plate 420 and the two side plates of the protective cover 400 are connected to the two side connecting portions 810 and the top plate of the U-shaped fasteners 800. To ensure the reliability of the connection between the protective cover 400 and the U-shaped fasteners and to avoid affecting the movement of the traveling mechanism 510 within the running channel 600, the protective cover 400 and the U-shaped fasteners 800 are connected by screws. Of course, they can also be connected in other ways, such as by riveting.

[0036] As attached Figure 2 As shown, the first track body 100 and the second track body 200 are also provided with a walking mechanism detection component 900. The walking mechanism detection component 900 includes an outer cover 910 fixed on the first track body 100 and the second track body 200. The outer cover 910 is connected to the protective cover 400 as a whole.

[0037] As attached Figure 3 Appendix Figure 4 As shown, the protective cover 400 has a notch for installing the outer cover 910 of the walking mechanism detection component 900. The outer cover 910 includes an upper protective plate 911 located above the first track body and the second track body. Side protective plates 912 are vertically arranged on both sides of the upper protective plate 911. A connecting plate 913 located inside the side protective plate 912 is provided on the lower side of each side protective plate 912. The connecting plate 913 is an L-shaped plate. The two connecting plates 913 are screwed to the outer surfaces of the first track body 100 and the second track body 200. The two ends of the two side protective plates 912 are connected by end protective plates 914. The end protective plates 914 are provided with openings corresponding to the protective cover 400 for docking between the protective cover 400 and the end protective plates 914.

[0038] As attached Figure 3 Appendix Figure 4As shown, the outer casing 910 is equipped with at least one detection instrument for detecting the outer diameter of the traveling wheel 511 of the traveling mechanism 510. The detection instrument is connected to the controller 940 inside the outer casing. The detection instrument includes side line laser profile sensors 920 disposed on both sides of the traveling mechanism 510. Two side line laser profile sensors 920 can be disposed on each side of the traveling mechanism 510. The two side line laser profile sensors 920 on each side are distributed in the extension direction of the first track body 100 and the second track body 200 and are staggered in height. The laser lines they generate extend horizontally at different heights of the traveling wheel 511. At the same time, the side line laser profile sensors 920 on both sides of the traveling mechanism 510 are staggered by a safe distance in the extension direction of the track to avoid interference.

[0039] In another embodiment, the detection instrument may also be two top-line laser profile sensors 930 disposed at the bottom of the upper guard plate 911, their distribution direction being perpendicular to the extension direction of the first track body 100 and the second track body 200. Each top-line laser profile sensor 930 can determine the height of the traveling wheel 511 adjacent to it, i.e., the outer diameter of the traveling wheel 511, using a known triangulation method. Furthermore, each top-line laser profile sensor 930 can also measure the outer diameter of the guide wheel on the traveling mechanism 510 that is close to its position, thereby determining whether the guide wheel is abnormal.

[0040] Of course, the detection instrument may include both a side line laser profile sensor and a top line laser profile sensor. In other embodiments, the detection instrument may also employ a visual recognition device; this is not a limitation.

[0041] The specific methods for determining the outer diameter of the traveling wheel 511 using two side line laser profile sensors and the outer diameter of the guide wheel using a top line laser profile sensor are known technologies and will not be elaborated here.

[0042] Example 2

[0043] This embodiment discloses an aerial transport vehicle system, including the aerial track structure as described above, as well as other structures found in conventional OHT systems, such as the aerial transport vehicle 500, which will not be elaborated here.

[0044] This utility model has many other embodiments. All technical solutions formed by equivalent transformation or equivalent transformation fall within the protection scope of this utility model.

Claims

1. An aerial track structure, comprising a first track body and a second track body arranged parallel to each other at the same height and with gaps between them, characterized in that: A U-shaped protective cover is provided between the first track body and the second track body, connecting their sides and covering the first track body and the second track body. The protective cover, together with the first track body and the second track body, forms an operating channel within which the traveling mechanism of the aerial transport vehicle can move.

2. The aerial track structure according to claim 1, characterized in that: The first track body and the second track body are connected to the bottom of the ceiling by a set of adjustment components for leveling and raising the first track body and the second track body.

3. The aerial track structure according to claim 2, characterized in that: The adjustment assembly includes a crossbeam spanning above the first track body and the second track body. Two adjustment rods corresponding to the first track body and the second track body are connected to the crossbeam. The adjustment rods are equipped with connectors that can be adjusted in height. One connector is connected to the outside of the first track body, and the other connector is connected to the outside of the second track body.

4. The aerial track structure according to claim 3, characterized in that: The protective cover is connected to the connector.

5. The aerial track structure according to claim 3, characterized in that: The vertical parts of the two connectors maintain a gap with the first and second track bodies, and the two side plates of the protective cover are located at the gap between the vertical parts of the two connectors and the first and second track bodies.

6. The aerial track structure according to claim 1, characterized in that: The protective cover connects the first track body and the second track body through a set of U-shaped fasteners, with the two side connecting parts of the U-shaped fasteners connected to the outside of the first track body and the second track body.

7. The aerial track structure according to claim 6, characterized in that: The top plate and two side plates of the protective cover are connected to the two side connecting parts and the top plate of the U-shaped fastener.

8. The aerial track structure according to any one of claims 1-7, characterized in that: The first track body and the second track body are also provided with a walking mechanism detection component. The walking mechanism detection component includes an outer cover fixed on the first track body and the second track body. The outer cover is connected to the protective cover as a whole.

9. The aerial track structure according to claim 8, characterized in that: The outer casing is equipped with a testing instrument for detecting at least the outer diameter of the walking wheels of the walking mechanism.

10. An aerial transport vehicle system, characterized in that: Including the aerial orbital structure as described in any one of claims 1-9.

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