Intelligent suspension conveying system for ship ladder pipe surface treatment

Abstract

An intelligent suspension conveying system for ship ladder pipe surface treatment comprises driving chains, a rail frame and a hanging bracket, the driving chains comprise a plurality of first driving chains and second driving chains, the first driving chains and the second driving chains are sequentially connected end to end to form a closed path, and the first driving chains are configured to be load sections and arranged above a working area; the second driving chain is configured to be a no-load section and arranged above the non-working area, and the driving force of the first driving chain is larger than that of the second driving chain. A plurality of single-cycle driving chains with different set speeds and different torques are combined to form a total driving chain, so that a load section in the total driving chain drives a hanging bracket and a workpiece to move in a relatively large-torque and low-speed manner, and a no-load section drives the hanging bracket to move in a relatively small-torque and high-speed manner; the hanging bracket can be kept circulating in a no-load section and a load section at different speed, the hanging bracket is conveyed to move at different powers according to loads in different sections, and the effect of reducing power consumption is achieved.

Description

Technical Field

[0001] This invention belongs to the field of conveying system technology, specifically referring to an intelligent suspended conveying system for surface treatment of ship ladder pipes. Background Technology

[0002] After bending and forming, the tubing for ship ladders requires surface treatment to enhance its weather resistance. In the surface treatment industry (such as electroplating, anodizing, and spraying), overhead conveyor systems, through their three-dimensional spatial layout, process integration, environmental adaptability, and automated control, have become core equipment for improving production efficiency and ensuring process quality. Compared with traditional ground conveyor lines, overhead systems can save more than half of the ground space. The system supports automatic loading, unloading, turning, and accumulation of workpieces during the conveying process, reducing manual handling.

[0003] Suspended conveyor systems typically use a closed-loop traction chain running inside or below a dedicated track groove. A drive source drives the chain in a cyclical transmission, and a linkage device moves a trolley within the track. Workpieces are suspended by a lifting device mounted on the trolley. However, current suspended conveyor systems generally complete the entire conveying process using a closed-loop traction chain. But the resistance of this chain differs on the load side and the non-load side, resulting in a relatively large overall resistance in the track. The power of the drive source cannot be flexibly adjusted according to the position of the chain, leading to a large overall power consumption of the drive source. Summary of the Invention

[0004] In view of the above situation and to overcome the defects of the prior art, the purpose of the present invention is to provide an intelligent suspended conveying system for surface treatment of ship ladder pipes, so as to at least partially solve the problems mentioned in the background art.

[0005] The technical solution adopted in this invention is as follows: An intelligent suspended conveying system for surface treatment of ship ladder pipes is proposed, comprising: The drive train is constructed to circulate along a closed path. The track frame is parallel to the active path of the drive chain; The hanger is driven by the drive chain to move along the track frame; The drive chain includes multiple first drive chains and second drive chains, which are connected end-to-end to form a closed path. The first drive chain is configured as a load segment and is located above the working area, while the second drive chain is configured as an unloaded segment and is located above the non-working area. Both the first and second drive chains are configured to be driven by a controller, and the driving force of the first drive chain is greater than that of the second drive chain, while the driving speed of the first drive chain is less than that of the second drive chain.

[0006] Furthermore, both the first drive chain and the second drive chain include a chain belt and a driver disposed inside the chain belt. The driver is configured to drive the chain belt to circulate along a set path. The outer side of the chain belt is provided with a plurality of equally spaced drive claws, which are used to push the hanger to move along the path formed by the track frame.

[0007] Furthermore, a guide cover plate is provided on the inner side of the chain belt, and the chain belt is slidably mounted on the outer side of the guide cover plate and can circulate along the path formed by the guide cover plate. The driver is disposed on the inner side of the guide cover plate, and the driver includes a driving wheel and a driven wheel. The driving wheel and the driven wheel are respectively disposed at both ends of the inner side of the guide cover plate, and both the driving wheel and the driven wheel are connected to the chain belt for transmission. The driving wheel is configured such that the torque of the first driving chain is greater than the torque of the second driving chain.

[0008] Furthermore, mounting strips are provided on both sides along the width direction of the chain belt. The mounting strips protrude from the surface of the chain belt, forming a groove between two mounting strips. Multiple driving claws are installed in the groove. Each driving claw includes a claw body and a hinge shaft. The hinge shaft is fixedly installed between two mounting strips. The claw body is hinged to the hinge shaft and protrudes from the mounting strip.

[0009] Furthermore, the first drive chain and the second drive chain are configured as the first end at the active drive wheel and as the second end at the driven drive wheel. The outer sides of the first drive chain and the second drive chain are provided with limiting shafts corresponding to the outer sides of the first ends. When each claw body passes the limiting shaft at the first end, it is squeezed and contracted into the groove by the limiting shaft and disengaged from the hanger.

[0010] Furthermore, the track frame is provided with junction points at the beginning and end of the first drive chain and / or the second drive chain, and when each claw body disengages from the hanger, the hanger stays at the junction point.

[0011] Furthermore, the track frame includes a track body arranged parallel to the drive chain's movement path. A sliding trolley is provided inside the track body. The sliding trolley is movably installed inside the track body. The hanger is fixedly installed on the sliding trolley and moves cyclically along the path formed by the track body, following the sliding trolley.

[0012] Furthermore, a first support wheel is rotatably mounted on the bottom of the sliding trolley, and a first wheel groove is provided in the track body corresponding to the first support wheel. The first support wheel rolls and moves in the first wheel groove. A second support wheel is rotatably mounted on the upper end of the sliding trolley, and a second wheel groove is provided on the inner side wall of the track body to cooperate with the second support wheel. The first support wheel rotates around a horizontal axis, and the second support wheel rotates around a vertical axis.

[0013] Furthermore, the hanger includes a linkage rod disposed on the top of the sliding vehicle and a hanger rod disposed on the outer side wall of the linkage rod. The top of the track body is provided with a hanger track groove for the linkage rod to slide, and the top of the track body is provided with a sealing cover. The sealing cover is provided with symmetrically distributed flexible cover films. The flexible cover films cover the upper side of the hanger track groove and are attached to the side wall of the linkage rod.

[0014] Furthermore, the bottom of the track frame is provided with an air knife, which is located at the junction point and can guide air to the surface of the workpiece suspended at the junction point.

[0015] Beneficial effects: This invention combines multiple drive chains with different speeds and torques that can cycle in a single loop to form a total drive chain. The loaded section drives the hanger and workpiece with relatively high torque and low speed, while the unloaded section drives the hanger with relatively low torque and high speed. Through intelligent control by the controller, the hanger can maintain a cycle in the unloaded and loaded sections with different speeds. The power of the hanger is delivered to the load in different sections to reduce power consumption. Attached Figure Description

[0016] Figure 1 This is a front view structural diagram of an intelligent suspended conveying system for surface treatment of ship ladder pipes proposed in an embodiment of the present invention; Figure 2 A top view of the drive chain structure is provided for an embodiment of the present invention; Figure 3 This is a partial front view schematic diagram of the drive chain structure proposed in an embodiment of the present invention; Figure 4 This is a partial top view of the drive chain structure proposed in an embodiment of the present invention; Figure 5 for Figure 2 Enlarged structural diagram at point A; Figure 6 A top view of the track frame is provided for an embodiment of the present invention; Figure 7 A schematic diagram of the internal structure of the track body is provided for an embodiment of the present invention.

[0017] Among them, 10 is the drive chain; 101 is the first drive chain; 102 is the second drive chain; 11 is the chain belt; 110 is the groove; 111 is the mounting strip; 12 is the drive claw; 121 is the claw body; 122 is the hinge shaft; 13 is the driver; 131 is the active drive wheel; 132 is the driven drive wheel; 14 is the guide cover plate; 15 is the limit shaft; 20 is the track frame; 200 is the junction point; 21 is the track body; 210 is the first wheel groove; 211 is the second wheel groove; 212 is the hanger track groove; 22 is the sliding steer; 221 is the first support wheel; 222 is the second support wheel; 23 is the sealing cover; 231 is the flexible cover membrane; 30 is the hanger; 31 is the linkage rod; 32 is the hanger rod; and 40 is the air knife.

[0018] The accompanying drawings are provided to further understand the embodiments and form part of the specification. They are used together with the embodiments for explanation and do not constitute a limitation on the embodiments. Detailed Implementation

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection.

[0020] In the description of the embodiments, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments and simplifying the description, and 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. Therefore, they should not be construed as limitations on the embodiments.

[0021] like Figure 1 and Figure 2 As shown, this embodiment of the invention provides an intelligent suspended conveying system for surface treatment of ship ladder pipes, including a drive chain 10, a track frame 20, and a hanger 30.

[0022] The drive chain 10 is configured to circulate along a closed path. The track frame 20 is parallel to the movement path of the drive chain 10. The hanger 30 is driven by the drive chain 10 to move along the track frame 20. The hanger 30 is used to suspend the workpiece and moves with the track frame 20, so that the workpiece passes through the cleaning tank, electroplating tank, water washing tank, etc. in sequence to perform surface treatment on the pipe.

[0023] Furthermore, the drive chain 10 includes multiple first drive chains 101 and second drive chains 102, which are connected end-to-end to form a closed path (e.g., Figure 2 As shown, a typical closed path is a racetrack-shaped structure. The first drive chain 101 is configured as a load segment and is located above the working area (cleaning tank, electroplating tank, washing tank, etc.). The second drive chain 102 is configured as an unloaded segment and is located above the non-working area (on the loop path). The driving force of the first drive chain 101 is greater than the driving force of the second drive chain 102.

[0024] Thus, driven by the controller, the first drive chain 101, acting as the load segment, moves the hanger 30 and the workpiece with relatively high torque and low speed, while the second drive chain 102, acting as the unloaded segment, moves the hanger 30 with relatively low torque and high speed. The number of hangers 30 in the load segment is configured to be larger, and the number of hangers 30 in the unloaded segment is configured to be smaller. By using different speeds, the hanger 30 can keep circulating in the unloaded segment and the load segment. The hanger 30 is moved with different power for different load segments, thereby reducing power consumption.

[0025] like Figure 2 , Figure 3 and Figure 4 As shown, both the first drive chain 101 and the second drive chain 102 include a chain belt 11 and a driver 13 disposed inside the chain belt 11. The driver 13 is configured to drive the chain belt 11 to circulate along a set path. The outer side of the chain belt 11 is provided with a plurality of equally spaced drive claws 12, which are used to push the hanger 30 to move along the path formed by the track frame 20.

[0026] Furthermore, a guide cover plate 14 is provided on the inner side of the chain belt 11. The chain belt 11 is slidably mounted on the outer side of the guide cover plate 14 and can be circulated along the path formed by the guide cover plate 14. In some embodiments, the guide cover plate 14 is made of aluminum alloy or stainless steel. When the chain belt 11 is conveyed in the horizontal direction, the guide cover plate 14 covers the inner side of the chain belt 11 from the top and bottom directions, and the driver 13 is set on the inner side of the guide cover plate 14 so that the driver 13 drives the chain belt 11 to circulate around the periphery of the guide cover plate 14.

[0027] Furthermore, the driver 13 includes an active drive wheel 131 and a passive drive wheel 132. The active drive wheel 131 and the passive drive wheel 132 are respectively disposed at the inner ends of the guide cover plate 14, and both the active drive wheel 131 and the passive drive wheel 132 are connected to the chain belt 11 for transmission. The active drive wheel 131 is configured as a roller motor, which can drive the chain belt 11 through autonomous rotation. The passive drive wheel 132 adopts a roller structure and rotates passively to maintain the stability of the chain belt 11 transmission.

[0028] Furthermore, the active drive wheel 131 is configured such that the torque of the first drive chain 101 is greater than the torque of the second drive chain 102. Since the first drive chain 101 transports in the load section, the hanger 30 in the load section suspends the workpiece, and the resistance when the hanger 30 moves is greater. On the other hand, the second drive chain 102 transports in the unloaded section, and the hanger 30 in the unloaded section does not suspend the workpiece. Therefore, the resistance when the hanger 30 moves is smaller, making the torque of the first drive chain 101 greater than the torque of the second drive chain 102. The power of the motor can be configured according to different resistance conditions, making it more adaptable to the working conditions of the section and reducing the overall power consumption of the motor.

[0029] like Figure 3 As shown, mounting strips 111 are provided on both sides along the width direction of the chain belt 11. The mounting strips 111 protrude from the surface of the chain belt 11, forming a groove 110 between the two mounting strips 111. Multiple drive claws 12 are installed in the groove 110. During operation, the chain belt 11 circulates along a set path. As the chain belt 11 moves, it drives the drive claws 12 to move in an orderly manner. The drive claws 12 push the hanger 30 to move, thereby realizing the conveying of the workpiece.

[0030] The drive claw 12 includes a claw body 121 and a hinge shaft 122. The hinge shaft 122 is fixedly installed between two mounting strips 111. The claw body 121 is hinged to the hinge shaft 122 and protrudes from the mounting strips 111. In a horizontal non-stressed state, the claw body 121 protrudes outward from the mounting strips 111 and can cooperate with the hanger 30 to push the hanger 30 to move. When the claw body 121 is blocked in the horizontal direction, the claw body 121 will bend at the hinge shaft 122, causing the claw body 121 to retract into the groove 110.

[0031] In some embodiments, the first drive chain 101 and the second drive chain 102 are configured as the first end at the active drive wheel 131 and as the second end at the driven drive wheel 132. The outer sides of the first drive chain 101 and the second drive chain 102 are provided with a limiting shaft 15 corresponding to the outer side of the first end. When each claw body 121 passes the limiting shaft 15 at the first end, it is squeezed and contracted into the groove 110 by the limiting shaft 15 and disengaged from the hanger 30.

[0032] Thus, when the claw 121 pushes the hanger 30 to the first end, it will contact the limiting shaft 15 and be squeezed into the groove 110 by the limiting shaft 15, causing the claw 121 to separate from the hanger 30. When the claw 121 on the first drive chain 101 or the second drive chain 102 in the workpiece conveying direction passes the second end, it will grab the hanger 30 that is stopped at the first end and transfer the hanger 30 from the previous drive chain 10 to the subsequent drive chain 10, driving the hanger 30 to continue to move to the rear.

[0033] like Figure 2 and Figure 6 As shown, the track frame 20 is provided with junction points 200 at the beginning and end of the first drive chain 101 and / or the second drive chain 102. When each claw body 121 disengages from the hanger 30, the hanger 30 stays at the junction point 200. The drive claws 12 on the first drive chain 101 and / or the second drive chain 102 complete the transfer of the hanger 30 at the junction point 200.

[0034] like Figure 2 , Figure 6 and Figure 7 As shown, the track frame 20 includes a track body 21 arranged parallel to the moving path of the drive chain 10. A sliding trolley 22 is provided inside the track body 21. The sliding trolley 22 is movably installed inside the track body 21. The hanger 30 is fixedly installed on the sliding trolley 22 and moves cyclically along the path formed by the track body 21 following the sliding trolley 22.

[0035] The sliding steer 22, located within the track body 21, primarily serves to support the weight of the hanger 30 in the vertical direction and reduce frictional resistance during movement in the horizontal direction, thus minimizing the resistance of the hanger 30 during movement.

[0036] Furthermore, a first support wheel 221 is rotatably mounted on the bottom of the sliding car 22, and a first wheel groove 210 is provided in the track body 21 corresponding to the first support wheel 221. The first support wheel 221 rolls and moves in the first wheel groove 210. A second support wheel 222 is rotatably mounted on the upper end of the sliding car 22, and a second wheel groove 211 is provided on the inner side wall of the track body 21 to cooperate with the second support wheel 222. The first support wheel 221 rotates around a horizontal axis, and the second support wheel 222 rotates around a vertical axis.

[0037] In some embodiments, the first support wheel 221 is configured as two wheel sets arranged side by side, which can provide stable support in the vertical direction. The first wheel groove 210 is configured as a groove with a "W" shaped cross section, so that the first support wheel 221 can move along a set path in the first wheel groove 210. The first wheel groove 210 needs to be filled with lubricating oil. The groove with a "W" shaped cross section can reduce the amount of lubricating oil and keep the first support wheel 221 in the lubricating oil. The second support wheel 222 is configured to rotate about a vertical axis and can rotate along the second wheel groove 211, so that the movement of the sliding trolley 22 in the horizontal direction is more stable, does not tilt, and reduces the frictional resistance in the horizontal direction.

[0038] Furthermore, the hanger 30 includes a linkage rod 31 mounted on the top of the sliding carriage 22 and a hanger rod 32 mounted on the outer wall of the linkage rod 31. The top of the track body 21 is provided with a hanger track groove 212 for the linkage rod 31 to slide, and the top of the track body 21 is provided with a sealing cover 23. The linkage rod 31 engages upward with the drive claw 12, and the hanger rod 32 is generally C-shaped, passing around the track frame 20 and connecting downward with the workpiece.

[0039] Furthermore, to enhance sealing and prevent corrosion, the sealing cover 23 is provided with symmetrically distributed flexible cover membranes 231. The flexible cover membranes 231 cover the upper side of the hanger track groove 212 and are attached to the side wall of the linkage rod 31. The flexible cover membranes 231 are two symmetrical structures with an openable gap in the middle. When the linkage rod 31 moves in the gap, the gap of the flexible cover membrane 231 opens in the area passed by the linkage rod 31. After the linkage rod 31 passes, the gap of the flexible cover membrane 231 closes and is sealed again.

[0040] like Figure 1 As shown, the bottom of the track frame 20 is equipped with an air knife 40. The air knife 40 is located at the junction point 200 and can guide air to the surface of the workpiece suspended at the junction point 200 to blow off the residual electroplating solution and cleaning solution on the workpiece, so as to avoid contamination of the reagents in the next tank when it enters the next tank.

[0041] In conjunction with the above embodiments, a total drive train 10 is formed by combining multiple drive trains 10 with different speeds and torques that can cycle in a single cycle. The load section drives the hanger 30 and the workpiece to move at a relatively high torque and low speed, while the unloaded section drives the hanger 30 to move at a relatively low torque and high speed. The hanger 30 can maintain a cycle in the unloaded and load sections with different speeds. The hanger 30 is moved with different power for different load sections, thereby reducing power consumption.

[0042] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0043] The embodiments have been described above, and such description is not restrictive. The figures shown are only one embodiment, and the actual structure is not limited to this. In short, if a person skilled in the art is inspired by this description and designs a similar structure and embodiment without departing from the inventive spirit, such design should fall within the scope of protection.

Claims

1. An intelligent suspended conveying system for surface treatment of ship ladder pipes, characterized in that, include: The drive chain (10) is configured to circulate along a closed path; The track frame (20) is parallel to the active path of the drive chain (10); The hanger (30) is driven by the drive chain (10) to move along the track frame (20); The drive chain (10) includes multiple first drive chains (101) and second drive chains (102). The first drive chains (101) and second drive chains (102) are connected end to end to form a closed path. The first drive chain (101) is configured as a load segment and is located above the working area. The second drive chain (102) is configured as an unloaded segment and is located above the non-working area. Both the first drive chain (101) and the second drive chain (102) are configured to be driven by a controller. The driving force of the first drive chain (101) is greater than the driving force of the second drive chain (102). The driving speed of the first drive chain (101) is less than the driving speed of the second drive chain (102).

2. The intelligent suspended conveying system for surface treatment of ship ladder pipes according to claim 1, characterized in that: The first drive chain (101) and the second drive chain (102) both include a chain belt (11) and a driver (13) disposed inside the chain belt (11). The driver (13) is configured to drive the chain belt (11) to circulate along a set path. The outer side of the chain belt (11) is provided with a plurality of equally spaced drive claws (12). The drive claws (12) are used to push the hanger (30) to move along the path formed by the track frame (20).

3. The intelligent suspended conveying system for surface treatment of ship ladder pipes according to claim 2, characterized in that: The inner side of the chain (11) is provided with a guide cover plate (14). The chain (11) is slidably mounted on the outer side of the guide cover plate (14) and can be circulated along the path formed by the guide cover plate (14). The driver (13) is disposed on the inner side of the guide cover plate (14). The driver (13) includes an active drive wheel (131) and a driven drive wheel (132). The active drive wheel (131) and the driven drive wheel (132) are respectively disposed at both ends of the inner side of the guide cover plate (14). The active drive wheel (131) and the driven drive wheel (132) are both connected to the chain (11) for transmission. The active drive wheel (131) is configured such that the torque of the first drive chain (101) is greater than the torque of the second drive chain (102).

4. The intelligent suspended conveying system for surface treatment of ship ladder pipes according to claim 3, characterized in that: Mounting strips (111) are provided on both sides along the width direction of the chain (11). The mounting strips (111) protrude from the surface of the chain (11), forming a groove (110) between the two mounting strips (111). Multiple driving claws (12) are installed in the groove (110). Each driving claw (12) includes a claw body (121) and a hinge shaft (122). The hinge shaft (122) is fixedly installed between the two mounting strips (111). The claw body (121) is hinged to the hinge shaft (122), and the claw body (121) protrudes from the mounting strip (111).

5. The intelligent suspended conveying system for surface treatment of ship ladder pipes according to claim 4, characterized in that: The first drive chain (101) and the second drive chain (102) are configured as the first end at the active drive wheel (131) and as the second end at the driven drive wheel (132). The outer sides of the first drive chain (101) and the second drive chain (102) are provided with limiting shafts (15) corresponding to the outer sides of the first ends. When each claw body (121) passes the limiting shaft (15) at the first end, it is squeezed and contracted into the groove (110) by the limiting shaft (15) and disengaged from the hanger (30).

6. The intelligent suspended conveying system for surface treatment of ship ladder pipes according to claim 5, characterized in that: The track frame (20) is provided with junction points (200) at the junctions of the first drive chain (101) and / or the second drive chain (102). When each claw body (121) disengages from the hanger (30), the hanger (30) stays at the junction point (200).

7. The intelligent suspended conveying system for surface treatment of ship ladder pipes according to claim 6, characterized in that: The track frame (20) includes a track body (21) arranged parallel to the movement path of the drive chain (10). A sliding trolley (22) is provided inside the track body (21). The sliding trolley (22) is movably installed inside the track body (21). The hanger (30) is fixedly installed on the sliding trolley (22) and moves cyclically along the path formed by the track body (21) following the sliding trolley (22).

8. The intelligent suspended conveying system for surface treatment of ship ladder pipes according to claim 7, characterized in that: The bottom of the sliding trolley (22) is rotatably mounted with a first support wheel (221). The track body (21) is provided with a first wheel groove (210) corresponding to the first support wheel (221). The first support wheel (221) rolls and moves in the first wheel groove (210). The upper end of the sliding trolley (22) is rotatably mounted with a second support wheel (222). The inner side wall of the track body (21) is provided with a second wheel groove (211) that cooperates with the second support wheel (222). The first support wheel (221) rotates around a horizontal axis, and the second support wheel (222) rotates around a vertical axis.

9. The intelligent suspended conveying system for surface treatment of ship ladder pipes according to claim 8, characterized in that: The hanger (30) includes a linkage rod (31) disposed on the top of the sliding trolley (22) and a hanger rod (32) disposed on the outer side wall of the linkage rod (31). The top of the track body (21) is provided with a hanger track groove (212) for the linkage rod (31) to slide, and the top of the track body (21) is provided with a sealing cover (23). The sealing cover (23) is provided with symmetrically distributed flexible cover films (231). The flexible cover films (231) cover the upper side of the hanger track groove (212) and adhere to the side wall of the linkage rod (31).

10. The intelligent suspended conveying system for surface treatment of ship ladder pipes according to claim 6, characterized in that: The bottom of the track frame (20) is provided with an air knife (40), which is located at the junction point (200) and can guide air to the surface of the workpiece suspended at the junction point (200).

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