A steel pipe delivery loading device

Abstract

The utility model provides a kind of steel pipe warehouse-out loading device, including bridge, end beam being arranged at the both ends of bridge, hoist trolley being arranged on the upside of bridge and steel pipe sling being connected with hoist trolley;Steel pipe sling includes sling beam and several groups of sling tongs and tong driving mechanism;The upside of sling beam is provided with two groups of lifting movable pulleys, the middle part of hoist trolley is provided with lifting mechanism, the two sides of lifting mechanism are respectively guided fixed pulley and steel wire rope fixing seat, the steel wire rope led out by lifting mechanism is sequentially wound through guided fixed pulley, lifting movable pulley connects steel wire rope fixing seat;The downside of hoist trolley and the upside of sling beam are connected by two groups of symmetrical scissors arms, each group includes at least two scissors arms, the uppermost scissors arm is hinged with the downside of bridge, the lowermost scissors arm is hinged with the upside of sling beam, and adjacent two scissors arms are hinged between.The steel pipe warehouse-out loading device design science, convenient to use, is suitable for steel pipe warehouse-out loading process.

Description

Technical Field

[0001] This utility model relates to a lifting device, specifically, to a steel pipe loading and unloading device. Background Technology

[0002] Bridge cranes are lifting equipment that spans across workshops, warehouses, and material yards for material handling. Because their ends rest on tall concrete pillars or metal supports, they resemble bridges. The bridge frame of a bridge crane runs longitudinally along rails laid on elevated structures on both sides, making full use of the space beneath the bridge frame for material handling without being obstructed by ground equipment. It is the most widely used and numerous type of lifting machinery.

[0003] There are many types of bridge cranes on the market, such as the single-girder bridge crane with an offset trolley disclosed in Chinese patent CN214653121U, the double-girder bridge crane for metallurgy disclosed in Chinese patent CN214141300U, and the bridge crane disclosed in Chinese patent CN223060552U. Most of these bridge cranes include a bridge frame and a lifting trolley, which connects to a lifting device to move heavy objects. After steel pipe production is completed, the bundled steel pipes usually need to be loaded for transportation. However, these lifting devices are not suitable for bundling steel pipes, and the simple wire rope connection to the lifting device for hoisting is prone to swaying during movement, which is not conducive to loading bundled steel pipes onto trucks.

[0004] In order to solve the above problems, people have been seeking an ideal technological solution. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by providing a steel pipe loading and unloading device.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A steel pipe loading and unloading device includes a bridge frame, end beams at both ends of the bridge frame, a lifting trolley mounted on the upper side of the bridge frame, and a steel pipe lifting device connected to the lifting trolley. Each end beam has trolley wheels on its underside, and one set of trolley wheels is connected to a trolley traveling mechanism. The steel pipe lifting device includes a lifting beam and several sets of lifting clamps sequentially mounted on the lifting beam, and a clamp driving mechanism for opening and closing the lifting clamps. Two sets of lifting pulleys are mounted on the upper side of the lifting beam. The hoisting mechanism is located in the middle of the vehicle. Guide pulleys and wire rope fixing seats are located on both sides of the hoisting mechanism. The wire rope led out by the hoisting mechanism passes through the guide pulleys and the hoisting pulleys in sequence and connects to the wire rope fixing seats. The lower side of the hoisting trolley and the upper side of the lifting beam are connected by two sets of symmetrical scissor arms. Each set includes at least two scissor arms. The uppermost scissor arm is hinged to the lower side of the bridge frame, and the lowermost scissor arm is hinged to the upper side of the lifting beam. Adjacent scissor arms are hinged to each other.

[0007] The bridge frame includes two parallel main beams, with end beams connected to both ends of the main beams. The lifting trolley includes a trolley frame, with trolley wheels on the underside of the trolley frame. One set of trolley wheels is connected to the trolley running mechanism. Trolley tracks are provided on the upper side of the main beams corresponding to the trolley wheels. Connecting seats are provided on the trolley frame corresponding to the lifting mechanism and guide pulleys, with gaps between each set of connecting seats. The lifting mechanism and guide pulleys are respectively located on the upper side of the connecting seats.

[0008] Vertical baffles are installed at both ends of the end beam, and connecting plates are installed on both sides of the vertical baffles. Horizontal mounting plates are installed at the bottom of the two connecting plates, and two sets of horizontal wheels are installed on the horizontal mounting plates. Vertical mounting plates are installed at the top of the two connecting plates, and buffers are installed on the vertical mounting plates.

[0009] A walkway is provided on the outer side of the main beam, and a guardrail is provided on the edge of the walkway; two sets of first supports are provided on the lower side of the trolley frame corresponding to the scissor arms, and a second support is provided on the upper side of the lifting beam corresponding to the first supports. The uppermost scissor arm is hinged to the first support, and the lowermost scissor arm is hinged to the second support.

[0010] The lifting beam is a rectangular frame, and a gantry frame is placed on the upper side of the rectangular frame corresponding to each lifting pulley. The lifting pulleys are located in the middle of the upper side of the gantry frame; the second support is located between the two lifting pulleys.

[0011] Each scissor arm includes two symmetrical hinged connecting plates, which are connected by a longitudinal connecting plate. When the scissor arm is closed, the lifting pulley is located in the gap between the two hinged connecting plates of the scissor arm.

[0012] The guide pulley includes a first pulley seat and a guide wheel rotatably connected to the first pulley seat. A pulley shield is provided on the top of the first pulley seat, and openings are provided on both sides of the first pulley seat to facilitate the entry and exit of the wire rope. The lifting pulley includes a second pulley seat and a guide wheel rotatably connected to the second pulley seat. The top and both sides of the first pulley seat are open.

[0013] The lifting clamp includes a central frame, two sets of symmetrically arranged hinged frames, and a clamping member located at the lower end of the hinged frames. The hinged frame includes a first connecting plate hinged to the lifting beam, a second connecting plate hinged to the free end of the first connecting plate, a central frame hinged to the middle of the second connecting plate, a third connecting plate hinged to the middle frame, and the free ends of the second and third connecting plates respectively hinged to the upper part of the clamping member. The second connecting plate is an inverted L-shaped connecting plate, and the first and third connecting plates are both straight connecting plates. A vertical slide is provided on the lower side of the lifting beam, and the two sides of the central frame are slidably connected to the vertical slide.

[0014] The clamp drive mechanism includes a long drive shaft mounted on the upper side of the lifting beam and a drive motor that drives the long drive shaft to rotate. Each lifting clamp is provided with a clamp drum on the long drive shaft, and a drive chain is wound on the clamp drum. The end of the drive chain is connected to the middle frame.

[0015] Positioning mounting plates are provided on both sides of the central frame, and a positioning pressure plate is provided between the two clamping parts. The positioning pressure plate and the two positioning mounting plates are connected by positioning hydraulic cylinders.

[0016] Compared with existing technologies, the advantages of this utility model are that it provides a scientifically designed and easy-to-use steel pipe loading and unloading device, suitable for the process of loading and unloading steel pipes. In specific use, the clamps pick up the bundled finished steel pipes and move them to a suitable position via a cable tray and a lifting trolley for loading. In addition, a scissor arm is provided to prevent the lifting device from swaying during lifting or moving, thereby improving the stability of the lifting and moving process. Attached Figure Description

[0017] Figure 1 This is a front view structural diagram of this utility model.

[0018] Figure 2 This is a top view of the structure of this utility model.

[0019] Figure 3 This is a side view of the structure of this utility model.

[0020] Figure 4 This is a partially enlarged schematic diagram of the middle beam of this utility model.

[0021] Figure 5 This is a schematic diagram (I) of the lifting clamp structure in this utility model.

[0022] Figure 6 This is a schematic diagram (II) of the lifting clamp structure in this utility model.

[0023] In the diagram: 1. Cable tray; 2. End beam; 3. Lifting trolley; 4. Trolley traveling mechanism; 5. Trolley track; 6. Lifting beam; 7. Lifting clamp; 8. Lifting pulley; 9. Lifting mechanism; 10. Guide pulley; 11. Scissor arm; 12. Main beam; 13. Trolley frame; 14. Connecting seat; 15. Vertical baffle; 16. Connecting plate; 17. Horizontal mounting plate; 18. Horizontal wheel; 19. Vertical mounting plate; 20. Buffer; 21. Trolley wheel; 22. Trolley wheel; 23. First support; 24. Second support; 25. Portal frame; 26. Hinge connecting plate; 27. Longitudinal connecting plate; 28. Middle frame; 29. ​​Clamping component; 30. First connecting plate; 31. Second connecting plate; 32. Third connecting plate; 33. 34. Vertical slide rail; 35. Drive shaft; 36. Drive motor; 37. Clamping drum; 38. Positioning pressure plate; 39. Positioning hydraulic cylinder; 30. Positioning mounting plate. Detailed Implementation

[0024] The technical solution of this utility model will be further described in detail below through specific embodiments.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. "Installed," "equipped with," and "connected" can employ conventional means in the prior art, such as integral installation, snap-fit ​​installation, welding connection, adhesive connection, bolted connection, etc. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances and select suitable connection, setting, or installation methods from the existing technology.

[0026] like Figure 1-6As shown, a steel pipe loading and unloading device includes a trolley track 5, a bridge frame, end beams 2 at both ends of the bridge frame, a lifting trolley 3 on the upper side of the bridge frame, and a steel pipe lifting device connected to the lifting trolley 3; trolley wheels 21 are provided on the lower side of each end beam 2, and one set of trolley wheels 21 is connected to a trolley traveling mechanism 4, and the trolley wheels 21 travel along the trolley track 5; the steel pipe lifting device includes a lifting beam 6 and several sets of lifting clamps 7 arranged sequentially on the lifting beam 6, and a clamp driving mechanism for driving the lifting clamps 7 to open and close; two sets of lifting clamps are provided on the upper side of the lifting beam 6. The hoisting pulley 8 and the hoisting trolley 3 are provided with a hoisting mechanism 9 in the middle. The hoisting mechanism 9 has guide pulleys 10 and wire rope fixing seats on both sides. The wire rope led out from the hoisting mechanism 9 passes through the guide pulleys 10 and the hoisting pulley 8 in sequence and connects to the wire rope fixing seats. The lower side of the hoisting trolley 3 and the upper side of the lifting beam 6 are connected by two sets of symmetrical scissor arms 11. Each set includes at least two scissor arms 11. The uppermost scissor arm 11 is hinged to the lower side of the bridge frame, and the lowermost scissor arm 11 is hinged to the upper side of the lifting beam 6. Adjacent scissor arms 11 are hinged to each other.

[0027] This steel pipe loading and unloading device is scientifically designed and easy to use, making it suitable for the process of loading steel pipes out of warehouses. In actual use, the clamps pick up the bundled finished steel pipes and move them to a suitable position via a cable tray and a lifting trolley for loading. In addition, a scissor arm is provided to prevent the lifting device from swaying during lifting or moving, thereby improving the stability of the lifting and moving process.

[0028] In one embodiment, the bridge frame includes two parallel main beams 12, with end beams 2 connected to both ends of the main beams 12 respectively; the lifting trolley 3 includes a trolley frame 13, with trolley wheels 22 arranged on the lower side of the trolley frame 13, one set of trolley wheels 22 being connected to a trolley running mechanism, and a trolley track being arranged on the upper side of the main beam 12 corresponding to the trolley wheels 22 so that the lifting trolley can move along the trolley track. Connecting seats 14 are respectively arranged on the trolley frame 13 corresponding to the lifting mechanism 9 and the guide pulley 10, with gaps between each set of connecting seats 14, and the lifting mechanism 9 and the guide pulley 10 being arranged on the upper side of the connecting seats 14 respectively.

[0029] In one embodiment, vertical baffles 15 are respectively provided at both ends of the end beam 2, and connecting plates 16 are respectively provided on both sides of the vertical baffles 15. A horizontal mounting plate 17 is provided at the lower part of the two connecting plates 16, and two sets of horizontal wheels 18 are provided on the horizontal mounting plate 17. The horizontal wheels are tangent to both sides of the trolley track to improve the stability of the trolley operation. A vertical mounting plate 19 is provided at the upper part of the two connecting plates 16, and a buffer 20 is provided on the vertical mounting plate 19.

[0030] In one embodiment, a walkway is provided on the outer side of the main beam 12, and a guardrail is provided on the edge of the walkway; two sets of first supports 23 are provided on the lower side of the trolley frame 13 corresponding to the scissor arms 11, and a second support 24 is provided on the upper side of the lifting beam 6 corresponding to the first supports 23 for easy assembly; the uppermost scissor arm 11 is hinged to the first support 23, and the lowermost scissor arm 11 is hinged to the second support 24.

[0031] In one embodiment, the lifting beam 6 is a rectangular frame, and a gantry frame 25 is placed on the upper side of the rectangular frame corresponding to each lifting pulley 8. The lifting pulley 8 is located in the middle of the upper side of the gantry frame 25; the second support 24 is located between the two lifting pulleys 8 for easy assembly.

[0032] In one embodiment, each scissor arm 11 includes two symmetrical hinged connecting plates 26, which are connected by a longitudinal connecting plate 27. When the scissor arm 11 is closed, the lifting pulley 8 is located in the gap between the two hinged connecting plates 26 of the scissor arm, so as to avoid the scissor arm and the lifting pulley from affecting each other.

[0033] In one embodiment, the guide pulley 10 includes a first pulley seat and a guide wheel rotatably connected to the first pulley seat. The top of the first pulley seat is provided with a pulley shield, and the two sides of the first pulley seat are provided with openings to facilitate the entry and exit of the wire rope. The lifting pulley 8 includes a second pulley seat and a guide wheel rotatably connected to the second pulley seat. The top and two sides of the first pulley seat are open to facilitate the winding of the rope.

[0034] In one embodiment, the lifting clamp 7 includes a central frame 28, two sets of symmetrically arranged hinge frames, and a clamping member 29 disposed at the lower end of the hinge frames; the hinge frame includes a first connecting plate 30 hinged to the lifting beam 6, the free end of the first connecting plate 30 is hinged to a second connecting plate 31, the middle part of the second connecting plate 31 is hinged to the central frame 28, the central frame 28 is also hinged to a third connecting plate 32, the free ends of the second connecting plate 31 and the third connecting plate 32 are respectively hinged to the upper part of the clamping member 29, the second connecting plate 31 is an inverted L-shaped connecting plate, the first connecting plate 30 and the third connecting plate 32 are both straight connecting plates, the lower side of the lifting beam 6 is provided with a third connecting plate 33, and the two sides of the central frame 28 are respectively slidably connected to the third connecting plate 33.

[0035] In one embodiment, the clamp drive mechanism includes a long drive shaft 34 disposed on the upper side of the lifting beam 6 and a drive motor 35 for driving the long drive shaft 34 to rotate. A clamp drum 36 is respectively disposed on the long drive shaft 34 corresponding to each lifting clamp 7. A drive chain is wound on the clamp drum 36, and the end of the drive chain is connected to the central frame 28. During use, the drive motor drives the clamp drum to rotate, and the drive chain retracts and extends, pulling the central frame up and down, thereby driving the lifting clamps to open and close.

[0036] In one embodiment, positioning mounting plates 39 are respectively provided on both sides of the central frame 28, and a positioning pressure plate 37 is provided between the two clamping members 29. The positioning pressure plate 37 and the two positioning mounting plates 39 are respectively connected by positioning hydraulic cylinders 38. During use, the positioning hydraulic cylinders extend and retract to adjust the lifting and lowering of the positioning pressure plate, which can press the steel pipe on the upper side during the movement of the steel pipe, thereby improving the stability of the movement process.

[0037] The above embodiments can be combined with each other.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it; although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this utility model or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the technical solution claimed by this utility model.

Claims

1. A steel pipe loading and unloading device, characterized in that: The system includes a cable tray, end beams at both ends of the cable tray, a lifting trolley on the upper side of the cable tray, and a steel pipe lifting device connected to the lifting trolley. Each end beam has trolley wheels on its underside, and one set of trolley wheels is connected to a trolley traveling mechanism. The steel pipe lifting device includes a lifting beam and several sets of lifting clamps sequentially arranged on the lifting beam, and a clamp driving mechanism for opening and closing the lifting clamps. Two sets of lifting pulleys are located on the upper side of the lifting beam. A lifting mechanism is located in the middle of the lifting trolley, with guide pulleys and wire rope fixing seats on both sides of the lifting mechanism. The wire rope leading from the lifting mechanism passes sequentially through the guide pulleys and the lifting pulleys to connect to the wire rope fixing seats. The lower side of the lifting trolley and the upper side of the lifting beam are connected by two sets of symmetrical scissor arms. Each set includes at least two scissor arms. The uppermost scissor arm is hinged to the lower side of the cable tray, and the lowermost scissor arm is hinged to the upper side of the lifting beam. Adjacent scissor arms are hinged to each other.

2. The steel pipe loading and unloading device according to claim 1, characterized in that: The bridge frame includes two parallel main beams, with end beams connected to both ends of the main beams. The lifting trolley includes a trolley frame, with trolley wheels on the underside of the trolley frame. One set of trolley wheels is connected to the trolley running mechanism. Trolley tracks are provided on the upper side of the main beams corresponding to the trolley wheels. Connecting seats are provided on the trolley frame corresponding to the lifting mechanism and guide pulleys, with gaps between each set of connecting seats. The lifting mechanism and guide pulleys are respectively located on the upper side of the connecting seats.

3. The steel pipe loading and unloading device according to claim 2, characterized in that: Vertical baffles are installed at both ends of the end beam, and connecting plates are installed on both sides of the vertical baffles. Horizontal mounting plates are installed at the bottom of the two connecting plates, and two sets of horizontal wheels are installed on the horizontal mounting plates. Vertical mounting plates are installed at the top of the two connecting plates, and buffers are installed on the vertical mounting plates.

4. The steel pipe loading and unloading device according to claim 3, characterized in that: A walkway is provided on the outer side of the main beam, and a guardrail is provided on the edge of the walkway; two sets of first supports are provided on the lower side of the trolley frame corresponding to the scissor arms, and a second support is provided on the upper side of the lifting beam corresponding to the first supports. The uppermost scissor arm is hinged to the first support, and the lowermost scissor arm is hinged to the second support.

5. The steel pipe loading and unloading device according to claim 4, characterized in that: The lifting beam is a rectangular frame, and a gantry frame is placed on the upper side of the rectangular frame corresponding to each lifting pulley. The lifting pulleys are located in the middle of the upper side of the gantry frame; the second support is located between the two lifting pulleys.

6. The steel pipe loading and unloading device according to claim 5, characterized in that: Each scissor arm includes two symmetrical hinged connecting plates, which are connected by a longitudinal connecting plate. When the scissor arm is closed, the lifting pulley is located in the gap between the two hinged connecting plates of the scissor arm.

7. The steel pipe loading and unloading device according to claim 6, characterized in that: The guide pulley includes a first pulley seat and a guide wheel rotatably connected to the first pulley seat. A pulley shield is provided on the top of the first pulley seat, and openings are provided on both sides of the first pulley seat to facilitate the entry and exit of the wire rope. The lifting pulley includes a second pulley seat and a guide wheel rotatably connected to the second pulley seat. The top and both sides of the first pulley seat are open.

8. The steel pipe loading and unloading device according to any one of claims 1-7, characterized in that: The lifting clamp includes a central frame, two sets of symmetrically arranged hinged frames, and a clamping member located at the lower end of the hinged frames. The hinged frame includes a first connecting plate hinged to the lifting beam, a second connecting plate hinged to the free end of the first connecting plate, a central frame hinged to the middle of the second connecting plate, a third connecting plate hinged to the middle frame, and the free ends of the second and third connecting plates respectively hinged to the upper part of the clamping member. The second connecting plate is an inverted L-shaped connecting plate, and the first and third connecting plates are both straight connecting plates. A vertical slide is provided on the lower side of the lifting beam, and the two sides of the central frame are slidably connected to the vertical slide.

9. The steel pipe loading and unloading device according to claim 8, characterized in that: The clamp drive mechanism includes a long drive shaft mounted on the upper side of the lifting beam and a drive motor that drives the long drive shaft to rotate. Each lifting clamp is provided with a clamp drum on the long drive shaft, and a drive chain is wound on the clamp drum. The end of the drive chain is connected to the middle frame.

10. The steel pipe loading and unloading device according to claim 9, characterized in that: Positioning mounting plates are provided on both sides of the central frame, and a positioning pressure plate is provided between the two clamping parts. The positioning pressure plate and the two positioning mounting plates are connected by positioning hydraulic cylinders.

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