A suspended track structure

Abstract

This invention relates to the field of agricultural rail transport technology, and more particularly to a suspended rail structure, comprising: a working rail, the working rail having a C-shaped cross-section with the opening facing upwards; a rack extending axially on the lower surface of the working rail; a connecting rail, the connecting rail being positioned above the working rail and connected to the main steel frame of the greenhouse roof; and a vertical connecting device, the two ends of the vertical connecting device being connected to the working rail and the connecting rail respectively. The beneficial effects of this invention are: by providing a rack extending axially on the lower surface of the working rail, the defects of existing friction drive rails, such as slippage due to reduced positive pressure on steep slopes and low transmission and braking efficiency, are overcome; secondly, the connection rail and working rail fully utilize the vertical space of the greenhouse and solve the problems of high installation accuracy requirements and inconvenient disassembly and maintenance associated with existing fixed hole positions.

Description

Technical Field

[0001] This invention relates to the field of agricultural rail transport technology, and more particularly to a suspended rail structure. Background Technology

[0002] The grape industry is a core component of my country's high-value-added agriculture. Fujian Province, as a core subtropical production area, had a total cultivation area of ​​11,500 hectares and an output of 242,000 tons by the end of 2022. Among them, Fu'an City, as the core production area, has a planting area of ​​80,000 mu and a total industrial chain output value of 3.2 billion yuan. It has become a pillar industry for empowering rural revitalization in the southeastern humid and hot region.

[0003] In Fujian Province, grape cultivation primarily employs rain-sheltered cultivation, with a smaller portion using forcing cultivation, mainly utilizing plastic film greenhouses. The grape flowering and fruit-setting period coincides with Fujian's rainy weather, leading to severe diseases, low yields, and poor quality in open-field cultivation. The main grape-producing areas of Ningde, Nanping, and Sanming in Fujian are predominantly mountainous, with higher rainfall and humidity levels than the plains, making disease control difficult in open-field cultivation; therefore, trellises and rain-sheltered facilities are essential. However, even after the promotion of rain-sheltered grape cultivation technology, the industry remains constrained by topography, hindering mechanization and increasing labor costs year by year, particularly in transportation. Specific problems include: Labor dependence and efficiency bottlenecks: High dependence on manual labor, high proportion of orchard transportation costs in management costs, and low efficiency; traditional wheeled and tracked machinery has poor adaptability in hilly areas with slopes greater than 35°, resulting in a low overall mechanization rate.

[0004] Topography and climate constraints: Fujian is mostly hilly, and grape cultivation in greenhouses often adopts rain-sheltered mountain cultivation. The mountainous areas face labor shortages and an aging population, leading to increased labor costs. The reliance on manual carrying in mountainous environments also results in continuously rising transportation costs. In addition, the complex terrain limits the fragmented nature of the land plots. Furthermore, Fujian is hit by typhoons of varying degrees almost every year, requiring greenhouses to have a certain level of wind resistance.

[0005] Mountain rail transport machines can avoid steep terrain and dense foliage, and are not affected by topography when transporting agricultural production materials and fruits. They are easy to operate and are more than 10 times more efficient than traditional manual transport, saving more than 40% of labor costs annually. Suspended monorail transport machines occupy little space and have strong terrain adaptability. Their tracks can be erected on the roof or the ground, making them an ideal solution for transporting grapes in mountain greenhouses.

[0006] Currently, common suspended tracks mainly include I-beam tracks, C-shaped tracks with hollow inner cavities, and square tracks with cross-sectional dimensions mostly around 50mm × 50mm. Square tracks offer strong torsional resistance, but require specialized cold-bending tools for curves. Existing suspended tracks often use rubber drive wheels for friction transmission between the track and the machine, relying on friction between the support wheels or drive wheels and the track for deceleration and braking. This solution is low-cost and easy to maintain, suitable for flat terrain such as greenhouse transportation and indoor machine room inspections. However, in mountainous greenhouses with a certain slope, the normal pressure on the track required for friction transmission of the transport machine's wheels decreases with increasing slope, significantly reducing transmission and braking efficiency. Gear and rack transmission, on the other hand, offers significantly higher transmission and braking efficiency than friction transmission and friction braking, making it more suitable for steep slope operations.

[0007] Furthermore, existing common suspended tracks mostly use fixed hole positions for installation, which requires high installation accuracy and is not conducive to quick disassembly and maintenance. Therefore, there is an urgent need to develop a suspended monorail transport track and its installation method that are suitable for the special spatial structure and transportation needs of mountain grape greenhouses, in order to solve the above-mentioned problems in the existing technology. Summary of the Invention

[0008] The technical problem to be solved by the present invention is to provide a suspended track structure with high transmission efficiency and braking reliability, which is also adapted to the spatial layering characteristics of mountain grape greenhouses. To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows: a suspended track structure is provided, comprising: The working track is used to support the suspended monorail transport machine to run on it; the transverse cross section of the working track is a C-shape with the opening facing upward; the bottom surface of the working track protrudes downward to form multiple axially distributed teeth, and the multiple teeth form a rack, and the teeth of the drive wheel of the suspended monorail transport machine are engaged with the rack for transmission. A connecting track is installed above the working track and is connected to the main steel frame of the greenhouse roof. A vertical connecting device is used to connect the working track and the connecting track.

[0009] The beneficial effects of this invention are as follows: First, by setting a rack extending axially on the lower surface of the working track, the drive wheel of the transport machine meshes with the rack, completely overcoming the defects of existing friction drive tracks that are prone to slippage and have low transmission and braking efficiency on steep mountain slopes due to reduced positive pressure. Second, by fixing the connecting track to the steel frame at the top of the greenhouse and placing it above the leaf canopy, and suspending the working track below the leaf canopy through a vertical connecting device, a layered structure is formed. This avoids the problem of traditional single-layer tracks interfering with grapevine growth and agricultural operations by passing through the leaf canopy layer, and makes full use of the vertical space of the greenhouse. Finally, the vertical connecting device enables a detachable connection between the working track and the connecting track, eliminating the need for pre-drilling precise fixing holes on the track, allowing for larger installation errors, and solving the problems of high installation accuracy requirements and inconvenient disassembly and maintenance of existing fixing holes. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the suspended track structure in conjunction with a rail transport machine according to a specific embodiment of the present invention; Figure 2 This is a side view of the suspended track structure in conjunction with a rail transport machine according to a specific embodiment of the present invention; Figure 3 This is a schematic diagram of the axial fixing component of the suspended track structure according to a specific embodiment of the present invention; Figure 4 This is a schematic diagram of the axial load-bearing component of the suspended track structure according to a specific embodiment of the present invention; Figure 5 A stepped cross-sectional schematic diagram of the axial load-bearing component of the suspended track structure according to a specific embodiment of the present invention. Label Explanation: 1. Working track; 11. Convex teeth; 2. Connect the tracks; 3. Suspended monorail transport; 31. Drive wheel.

[0011] 4. Axial fixing assembly; 41. First axial fixing assembly; 411. Limiting screw; 412. Upper support claw; 413. Lower support claw; 414. Locking sleeve; 415. Locking bolt; 42. Second axial fixing assembly; 421. Connecting screw; 422. Second support claw plate; 5. Axial load-bearing component; 51. Connecting threaded shaft; 52. Nut; 53. Support rod; 54. Fixing plate; 55. Connecting plate. Detailed Implementation

[0012] To explain in detail the technical content, objectives, and effects of the present invention, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0013] Existing suspended monorail transport tracks suffer from slippage due to friction on steep slopes in mountainous grape greenhouses. Furthermore, the single-layer track is often positioned above the leaf canopy, making it impossible to traverse horizontal leaf canopies and climbing vine nets, thus hindering transport operations beneath the leaf canopy. Consequently, these tracks must be modified into plant protection or inspection robots for top-down spraying and inspection. Simultaneously, pests in crops like grapes and peppers often occur on the underside of leaves, requiring bottom-up spraying from beneath the leaf canopy. Moreover, installing a single-layer track through the leaf canopy presents higher installation requirements than the solution described in this invention. Therefore, the problem with single-layer tracks is their inability to traverse leaf canopies and horizontal climbing vine nets, limiting their application scenarios. To address these issues, this invention proposes a suspended track structure.

[0014] Please see Figures 1 to 4 This invention provides a suspended track structure suitable for greenhouse suspended monorail transport machines, comprising: The working track 1 is used to support the suspended monorail transport machine 3 to run on it; the transverse cross section of the working track 1 is a C-shape with the opening facing upward; the bottom surface of the working track 1 protrudes downward to form a plurality of axially distributed teeth 11, and the plurality of teeth 11 form a rack, and the teeth of the drive wheel 31 of the suspended monorail transport machine 3 are engaged with the rack for transmission. Connecting track 2 is set above working track 1, and connecting track 2 is connected to the main steel frame of the greenhouse roof; A vertical connecting device is used to connect the working track 1 and the connecting track 2.

[0015] The beneficial effects of this invention are as follows: First, by setting a rack extending axially on the lower surface of the working track 1, the drive wheel 31 of the transport machine meshes with the rack, completely overcoming the defects of existing friction drive tracks that are prone to slippage and have low transmission and braking efficiency on steep mountain slopes due to reduced positive pressure; Second, by fixing the connecting track 2 to the steel frame at the top of the greenhouse and placing it above the leaf canopy, and suspending the working track 1 below the leaf canopy through a vertical connecting device, a layered structure is formed, which avoids the problem of traditional single-layer tracks interfering with grapevine growth and agricultural operations by passing through the leaf canopy layer, and makes full use of the vertical space of the greenhouse; Finally, the vertical connecting device enables the detachable connection between the working track 1 and the connecting track 2, eliminating the need for pre-drilling precise fixing holes on the track, allowing for larger installation errors, and solving the problems of high installation accuracy requirements and inconvenient disassembly and maintenance of existing fixing holes.

[0016] Please see Figure 3 Furthermore, in the above-mentioned suspended track structure, the vertical connecting device includes an axial fixing component 4; The axial fixing component 4 includes a first axial fixing component 41 connected to the working track 1 and a second axial fixing component 42 connected to the connecting track 2; The first axial fixing assembly 41 includes a limiting screw 411, an upper support claw 412, and a lower support claw 413. The upper support claw 412 and the lower support claw 413 respectively abut against the inner walls of the upper and lower sides of the C-shaped opening of the working track 1. The limiting screw 411 is threadedly connected to and passes through the upper support claw 412 and the lower support claw 413. The rotation of the limiting screw 411 causes the upper support claw 412 and the lower support claw 413 to move away from each other and thus lock into the inner walls of the upper and lower sides of the C-shaped opening.

[0017] As described above, the axial fixing component 4 is used to axially connect and limit the working track 1 and the connecting track 2. The upper and lower support claws 413 are driven to move away from each other by the limit screw 411 to clamp the upper and lower inner walls of the C-shaped opening from the inside. This internal support clamping structure does not require any pre-drilled mounting holes on the working track 1, which greatly reduces the installation accuracy requirements. At the same time, rotating the limit screw 411 can achieve quick clamping and loosening, which improves installation efficiency and maintenance convenience.

[0018] Please see Figure 3 Furthermore, in the above-mentioned suspended track structure, the second axial fixing component 42 includes a connecting screw 421 connected to the connecting track 2, and the first axial fixing component 41 also includes a locking sleeve 414 and a locking bolt 415. The two ends of the locking sleeve 414 are respectively sleeved on the connecting screw 421 and the limiting screw 411, and the locking bolt 415 is threaded and passes through the side wall of the locking sleeve 414.

[0019] As described above, by setting a connecting screw 421 connected to the connecting rail 2, and using a locking sleeve 414 with the connecting screw 421 and the limiting screw 411 respectively fitted at both ends, and the locking bolt 415 locked from the side wall, a certain axial and radial deviation between the connecting screw 421 and the limiting screw 411 is allowed, further reducing the installation accuracy requirements; at the same time, the locking sleeve 414 rigidly connects the two independent screws into one, making the working rail 1 and the connecting rail 2 form a whole, improving the axial stiffness of the rail system, and can quickly lock or release without rotating the entire sleeve, making the operation simple.

[0020] Furthermore, in the above-mentioned suspended track structure, the connecting track 2 has a C-shaped transverse cross-section with the opening facing downwards; The second axial fixing assembly 42 includes a second support claw 422 disposed inside the C-shaped opening of the connecting rail 2. The second support claw 422 abuts against the inner wall of the lower side of the C-shaped opening of the connecting rail 2. One end of the connecting screw 421 is connected to the locking sleeve 414, and the other end is threaded and passes through the second support claw 422.

[0021] As described above, the connecting rail 2 is designed as a C-shape with the opening facing downwards, and a support claw is provided inside the C-shaped opening. The support claw abuts against the lower inner wall, and the connecting screw 421 passes through the support claw and can adjust the tightening force by rotation. This allows the connecting rail 2 to also adopt an internal support clamping structure, eliminating the need to drill holes in the connecting rail 2, which facilitates adjustment, installation, and disassembly.

[0022] Please see Figure 4 and Figure 5 Furthermore, in the above-mentioned suspended track structure, the vertical connection device also includes an axial load-bearing component 5; The axial load-bearing assembly 5 includes a threaded shaft 51, a nut 52, a support rod 53, a connecting piece 55, and a fixing piece 54. The connecting track 2 is provided with a load-bearing hole that penetrates the side of the track; one end of the connecting threaded shaft 51 passes through the load-bearing hole and is threadedly connected to the nut 52; there are two connecting threaded shafts 51; the connecting piece 55 is provided inside the C-shaped opening of the connecting track; the connecting piece 55 is provided with two fixing holes; the two connecting threaded shafts 51 pass through the corresponding fixing holes of the connecting piece 55 respectively. The fixing piece 54 is disposed inside the C-shaped opening of the working track and abuts against the inner wall of the upper side of the C-shaped opening of the working track. One end of the support rod 53 is fixedly connected to the connecting piece 55, and the other end is fixedly connected to the fixing piece 54.

[0023] As described above, an axial load-bearing component 5 is introduced into the vertical connection device. This component is fixedly connected to a vertical support rod via a pair of threaded shafts 51 that pass horizontally through load-bearing holes in the side wall of the connecting rail 2. It specifically bears the main vertical load of the working rail 1 and the transport machine, complementing the axial fixing component 4 with a clear division of labor. The support rod 53 is fixedly connected to a connecting piece 55 connected in the middle of the pair of threaded shafts 51 (the connection between the support rod and the connecting piece / fixing piece can be either threaded or welded; welding provides a stronger connection). Furthermore, by using the pair of threaded shafts 51, the vertical support rod 53 is made perpendicular to the axis of the connecting rail 2, thereby ensuring the parallelism between the working rail 1 and the connecting rail 2.

[0024] The axial load-bearing component 5 bears load at a relatively fixed point, while the axial fixing component 4 can more easily provide axial limiting reinforcement at different points. The installation combination of the axial load-bearing component 5 and the axial fixing component 4 breaks through the limitations of traditional center hole installation, facilitating track installation and quick adjustment and maintenance.

[0025] Furthermore, in the aforementioned suspended track structure, the length of the working track 1 can be 6m. With a track wall thickness of 2.5mm, the axial load-bearing components are installed at approximately 1.5m intervals; with a track wall thickness of 2.0mm, the axial load-bearing components are installed at approximately 1.0m intervals.

[0026] Furthermore, in the aforementioned suspended track structure, the height of the rack is 10-15 mm.

[0027] Furthermore, in the above-mentioned suspended track structure, the opening height of the working track 1 is 30-40 mm, and the width is 40-50 mm.

[0028] Furthermore, in the aforementioned suspended track structure, the working track 1 is integrally stamped from a stainless steel plate, and the thickness of the stainless steel plate is 2.0-2.5 mm.

[0029] As described above, the working track 1 is made of stainless steel plate with a thickness of 2.0-2.5mm and is formed by one-piece stamping. It can be produced automatically throughout the entire process. Compared with hollow rack and pinion tracks or solid rack and pinion tracks that are manually welded, it has higher production efficiency, lower cost and better quality consistency.

[0030] Furthermore, in the aforementioned suspended track structure, the connecting track 2 is located above the canopy of mountain grape leaves; the working track 1 is located below the canopy of mountain grape leaves and is connected to the connecting track 2 via a vertical connecting device.

[0031] As described above, connecting track 2 is fixed to the greenhouse steel frame above the leaf canopy as a load-bearing foundation, without interfering with the horizontal and vertical steel wires of the leaf canopy layer and the grapevines; operating track 1 is suspended below the leaf canopy, and the conveyor runs below the leaf canopy, transporting fruit, pesticides, and fertilizers without touching the grapevines, and without affecting agricultural operations such as pruning, harvesting, and plant protection. The conveyor running under the leaf canopy expands the inspection function, monitoring information such as pest infestation on the back of leaves and the condition of fruit under the leaf canopy; it also expands the plant protection function, automatically spraying pesticides on fruit, the back of leaves, and vines, reducing labor costs and harm to humans.

[0032] Example 1 This embodiment uses a typical rain-sheltered grape greenhouse in Fujian Province as the application scenario. The connecting track 2 is fixed to the steel frame at the top of the greenhouse and located above the crop canopy. The working track 1 is suspended below the canopy through a vertical connecting device. The lower surface of the working track 1 is equipped with a rack that meshes with the drive gear of the transport machine, thereby achieving efficient transmission on steep slopes, no interference with space utilization, and quick disassembly and maintenance.

[0033] Please see Figures 1 to 4 This embodiment provides a suspended track structure, including a working track 1, a connecting track 2, and a vertical connecting device.

[0034] 1. The working track 1 is integrally stamped from a 2.5mm thick stainless steel plate. Its transverse cross-section is a C-shape with the opening facing upwards, forming a C-shaped opening. The height of the C-shaped opening is 35mm and the width is 45mm. The lower surface of the working track 1 is provided with a rack extending axially. The rack has a height of 12mm and its module is designed to match the drive gear of the conveyor, ensuring the accuracy of gear and rack meshing and transmission efficiency.

[0035] The standard length of a single working track 1 is 6m. This length has been optimized to facilitate manual handling and installation, and to match the subsequent installation span (1000-1500mm), ensuring that both ends of each track are effectively supported.

[0036] 2. Connecting track 2 is positioned above working track 1, and its transverse cross-section is a downward-opening C-shape (i.e., an inverted C-shape). The downward-opening design of connecting track 2 facilitates installation and adjustment from below. Connecting track 2 is fixed to the main steel frame of the greenhouse roof by bolts or welding and is located above the crop canopy.

[0037] The bottom of the connecting track 2 (i.e. the lower inner wall of the C-shaped opening) has multiple connection points along its length for connecting to the second axial fixing component 42 of the vertical connecting device.

[0038] 3. The two ends of the vertical connecting device are respectively connected to the working track 1 and the connecting track 2. In this invention, the vertical connecting device may include two complementary structures: The system includes an axial fixing component 4 (for quick assembly / disassembly and axial limiting) and an axial load-bearing component 5 (for primary load-bearing). Depending on the actual installation location and stress requirements, either component can be used alone or in combination. In this embodiment, the two components are arranged alternately to form a complete suspension system.

[0039] (a) Axial fixing component 4 (quick to install and remove, can be specifically arranged at locations on the working track 1 that are prone to large deformation or bear large loads) The axial fixing assembly 4 includes a first axial fixing assembly 41 connected to the working track 1 and a second axial fixing assembly 42 connected to the connecting track 2.

[0040] The first axial fixing assembly 41 includes a limiting screw 411, an upper support claw 412, and a lower support claw 413. Both the upper support claw 412 and the lower support claw 413 are arc-shaped metal parts, their outer contours conforming to the inner wall shape of the C-shaped opening of the working track 1. The upper support claw 412 and the lower support claw 413 are each provided with threaded holes. The limiting screw 411 is a double-threaded rod, threaded sequentially through the upper support claw 412 and the lower support claw 413. When the limiting screw 411 is rotated forward, due to the action of the threads, the upper support claw 412 moves upward and the lower support claw 413 moves downward, moving in opposite directions and respectively abutting against the upper and lower inner walls of the C-shaped opening (the lower inner wall being the back of the rack), thereby achieving a clamping and fixing with the working track 1. When the limit screw 411 is rotated in the opposite direction, the upper and lower support claws 413 move closer to each other, releasing the clamping, and the axial fixing component can be easily pulled out from the working track 1.

[0041] The second axial fixing assembly 42 includes a connecting screw 421 and a second support claw 422 disposed inside the C-shaped opening of the connecting rail 2. The second support claw 422 abuts against the lower inner wall of the C-shaped opening of the connecting rail 2. One end (lower end) of the connecting screw 421 is connected to the locking sleeve 414, and the other end (upper end) is threaded and passes through the second support claw 422. By rotating the connecting screw 421, the second support claw 422 can be pushed upward against the lower inner wall of the C-shaped opening of the connecting rail 2, thereby achieving the locking and fixing of the second axial fixing assembly 42 to the connecting rail 2.

[0042] The locking sleeve 414 is cylindrical, with an inner diameter larger than the outer diameters of the connecting screw 421 and the limiting screw 411. The lower end of the locking sleeve 414 is fitted onto the upper end of the limiting screw 411, and the upper end is fitted onto the lower end of the connecting screw 421. A threaded hole is provided on the side wall of the locking sleeve 414, through which the locking bolt 415 passes and tightens against the limiting screw 411 (or simultaneously tightens against the connecting screw 421). By tightening the locking bolt 415, the locking sleeve 414 rigidly connects the connecting screw 421 and the limiting screw 411 into one unit, thereby suspending the working track 1 below the connecting track 2.

[0043] (ii) Axial load-bearing component 5 (installed at a relatively fixed node, mainly used for load bearing, and does not need to be frequently disassembled and moved). Axial load-bearing component 5 is used to bear the main weight of the working track 1 and the conveyor, and is arranged alternately with axial fixed component 4. The axial load-bearing assembly 5 includes a threaded shaft 51, a nut 52, a support rod 53, a connecting piece 55, and a fixing piece 54. The connecting track 2 is provided with a load-bearing hole that penetrates the side of the track; one end of the connecting threaded shaft 51 passes through the load-bearing hole and is threadedly connected to the nut 52; there are two connecting threaded shafts 51; the connecting piece 55 is provided inside the C-shaped opening of the connecting track 2; the connecting piece 55 is provided with two fixing holes; the two connecting threaded shafts 51 pass through one fixing hole of the connecting piece 55 respectively. The fixing plate 54 is located inside the C-shaped opening of the working track 1 and abuts against the upper inner wall of the C-shaped opening of the working track 1. The support rod 53 is a vertical rod with external threads machined at both its upper and lower ends. The upper end of the support rod 53 is threaded and screwed into the connecting plate 55 (the support rod and the connecting plate can be welded or threaded); the lower end of the support rod 53 is threaded and passes through the fixing plate 54, used to connect the lower end of the support rod 53 to the working track 1.

[0044] Connecting track 2 is fixed to the steel frame at the top of the greenhouse, located above the crop canopy. Operating track 1 is suspended below connecting track 2 via a vertical connecting device (alternating axial fixing components and axial load-bearing components 5), located below the crop canopy. The drive gear of the conveyor meshes with the rack on the lower surface of operating track 1, and the load-bearing wheels roll on the upper surface of the C-shaped opening, enabling movement along the track.

[0045] Use of the above track structure: The drive gear of the suspended monorail conveyor 3 (such as the conveyor disclosed in Chinese Patent CN222728846U) meshes with the rack on the lower surface of the working track 1, and the load-bearing wheel of the conveyor presses against the upper surface of the C-shaped opening. When the motor of the conveyor drives the drive gear to rotate, the meshing of the gear and rack generates traction force, which drives the conveyor to move along the working track 1.

[0046] During operation, the axial load-bearing component 5 bears the main vertical load: the load is transferred to the fixed plate 54 through the inner wall of the C-shaped opening of the working track 1, then to the connecting track 2 through the support rod 53 and the connecting threaded shaft 51, and finally to the steel frame at the top of the greenhouse. The threaded connection between the support rod 53 and the connecting threaded shaft 51 allows for fine-tuning of the height to accommodate structural errors of different greenhouses.

[0047] The axial fixing assembly primarily serves the function of axial limiting: when the conveyor starts, brakes, or climbs an incline, an axial force is generated along the track direction. This axial force is transmitted to the upper support claw 412 and lower support claw 413 via the working track 1, and then to the connecting track 2 via the limiting screw 411, locking sleeve 414, and connecting screw 421. Because the upper support claw 412 and lower support claw 413 are internally clamped to the inner wall of the C-shaped opening, they will not loosen even under large axial impact forces, effectively preventing track movement.

[0048] Furthermore, the axial fixing component adopts an internal support clamping structure, eliminating the need for pre-drilling precise mounting holes on the working track 1. This allows for errors in track processing and installation position, significantly reducing the installation accuracy requirements. When it is necessary to disassemble or replace a section of the working track 1, simply loosen the locking bolt 415 and then rotate the limit screw 411 in the opposite direction to release the upper and lower support claws 413, allowing the axial fixing component to be pulled out of the working track 1 without disassembling any pre-embedded bolts or damaging the greenhouse steel frame.

[0049] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent modifications made based on the content of the present invention specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A suspended track structure, characterized in that include: The working track is used to support the suspended monorail transport machine to run on it; the transverse cross section of the working track is a C-shape with the opening facing upward; the bottom surface of the working track protrudes downward to form multiple axially distributed teeth, and the multiple teeth form a rack, and the teeth of the drive wheel of the suspended monorail transport machine are engaged with the rack for transmission. A connecting track is installed above the working track and is connected to the main steel frame of the greenhouse roof. A vertical connecting device is used to connect the working track and the connecting track.

2. The suspended track structure of claim 1, wherein, The vertical connection device includes an axial fixing component; The axial fixing assembly includes a first axial fixing assembly connected to the working track and a second axial fixing assembly connected to the connecting track; The first axial fixing assembly includes a limiting screw, an upper support claw, and a lower support claw. The upper and lower support claws respectively abut against the inner walls of the upper and lower sides of the C-shaped opening of the working track. The limiting screw is threadedly connected to and passes through the upper and lower support claws. The rotation of the limiting screw causes the upper and lower support claws to move away from each other and thus lock into the inner walls of the upper and lower sides of the C-shaped opening.

3. The suspended track structure of claim 2, wherein, The second axial fixing assembly includes a connecting screw connected to the connecting rail, and the first axial fixing assembly includes a locking sleeve and a locking bolt. The two ends of the locking sleeve are respectively sleeved on the connecting screw and the limiting screw, and the locking bolt is threaded and passes through the side wall of the locking sleeve.

4. The suspended track structure of claim 3, wherein, The connecting track is C-shaped with a downward-opening cross-section; The second axial fixing assembly includes a second support claw plate disposed inside the C-shaped opening of the connecting rail. The second support claw plate abuts against the inner wall of the lower side of the C-shaped opening of the connecting rail. One end of the connecting screw is connected to the locking sleeve, and the other end is threaded and passes through the second support claw plate.

5. The suspended track structure of claim 4, wherein, The vertical connection device also includes an axial load-bearing component; The axial load-bearing assembly includes a threaded shaft, a nut, a support rod, a connecting plate, and a fixing plate; The connecting track is provided with a load-bearing hole that penetrates the side of the track; one end of the connecting threaded shaft passes through the load-bearing hole and is threadedly connected to the nut; there are two connecting threaded shafts; the connecting piece is provided inside the C-shaped opening of the connecting track; the connecting piece is provided with two fixing holes; the two connecting threaded shafts pass through the corresponding fixing holes of the connecting piece respectively. The fixing plate is located inside the C-shaped opening of the working track and abuts against the inner wall of the upper side of the C-shaped opening of the working track. One end of the support rod is fixedly connected to the connecting plate, and the other end is fixedly connected to the fixing plate.

6. The suspended track structure of claim 1, wherein, The length of the working track is 6m.

7. The suspended track structure of claim 1, wherein, The height of the rack is 10-15 mm.

8. The suspended track structure according to claim 1, characterized in that, The opening of the working track has a height of 30-40 mm and a width of 40-50 mm.

9. The suspended track structure according to claim 1, characterized in that, The working track is integrally stamped from a stainless steel plate, and the thickness of the stainless steel plate is 2.0-2.5 mm.

10. The suspended track structure according to claim 1, characterized in that, The connecting track is located above the canopy of mountain grape leaves; the working track is located below the canopy of mountain grape leaves and is connected to the connecting track via a vertical connecting device.

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