Hoisting machine

Abstract

The invention discloses a hoisting machine and belongs to the technical field of hoisting, the hoisting machine comprises a bearing cross beam and positioning side lugs located at the corners of the periphery of the bearing cross beam, the positioning side lugs are connected with a suspension arm through suspension steel cables, and a first clamping component is arranged in the middle of the lower end of the bearing cross beam; second clamping parts are arranged on the left side and the right side of the first clamping part, sliding blocks at the upper ends of the second clamping parts are located in guide grooves formed in the lower end of the bearing cross beam, extension plates are connected with adjusting plates through butt-joint hinges, and the adjusting plates are convenient to fold and unfold through the butt-joint hinges. According to the hoisting machine, through the foldable and unfoldable bearing cross beam, folding can be conducted when the stroke of the clamping jaws does not need to be adjusted, the overall size is reduced, meanwhile, when an overlong object is transported and hoisted, the hoisting machine can be unfolded to provide the moving stroke needed by the clamping jaws, the end of the object can abut against the end of the object when the object is hoisted, and the stability of the object during transporting and hoisting is improved.

Description

Technical Field

[0001] This invention relates to the field of port lifting equipment technology, specifically to a lifting machine. Background Technology

[0002] As core equipment in port logistics, container cranes directly impact the overall competitiveness of a port in terms of operational efficiency, safety, and operating costs. Traditional quay cranes (quay cranes) and rubber-tired container cranes (RTGs) typically rely on manual operation by drivers in the cab. This model suffers from limitations such as high labor intensity, high-risk working environment, operational efficiency heavily influenced by driver experience and condition, and continuously rising human resource costs. Therefore, remote control systems for port container cranes have been widely applied and rapidly developed. This system migrates the crane's control interface from the on-site cab to a remote control center. Operators can remotely operate multiple cranes from the control room using integrated information such as high-definition video streams, sensor data, and equipment status feedback.

[0003] For example, the announcement number is CN221853942U, and the patent name is: A hoisting device for ports, which includes: a hoisting base; a hoisting assembly including a hoisting plate, a double-acting screw, and a motor; a stabilizing assembly including a stabilizing part; wherein, two hoisting plates are provided and are slidably disposed on the hoisting base in a direction that is close to or far from each other, and each of the two hoisting plates has a hook fixed at the end away from the hoisting base, and the two hooks are located on the side of the two hoisting plates that are close to each other, the double-acting screw is rotatably connected to the hoisting base, and the left-hand section and the right-hand section are respectively threaded through the two hoisting plates, and the motor is disposed at one end of the double-acting screw; two stabilizing parts are provided and are symmetrically disposed on the hoisting base with respect to the sliding direction of the hoisting plates, and both are used to abut against the machined plate.

[0004] The existing technology has the following technical problems: When lifting objects in the port, the existing hoist uses two jaws to clamp the objects. However, the length of the objects varies. When lifting long objects, the distance between the jaws is not adjustable, which can easily cause the two ends of the object to sway during the lifting process after the middle of the object is fixed. Furthermore, when the jaws are set to be movable and adjustable, the length of the crossbeam supporting the jaws is very long in order to provide the required travel distance. This can lead to limited operation when handling objects in a confined space due to the excessively long crossbeam.

[0005] Therefore, we propose a hoisting machine to solve the problems mentioned above. Summary of the Invention

[0006] The purpose of this invention is to provide a lifting machine to solve the problems mentioned in the background art. Currently available lifting machines on the market use two clamps to clamp objects during port operations. However, port objects vary in length, and when lifting longer objects, the clamp spacing is not adjustable. This can cause the objects to wobble at both ends during lifting after the middle section is fixed. Furthermore, when the clamps are adjustable, the crossbeam supporting the clamps needs to be very long to provide the required travel distance. This can lead to operational limitations in confined spaces.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a hoisting machine, comprising a load-bearing beam and positioning lugs located at the four corners of the load-bearing beam. The positioning lugs are connected to the boom via suspension cables. A first clamping component is provided at the lower center of the load-bearing beam, and second clamping components are provided on the left and right sides of the first clamping component. The upper slider of the second clamping component is located in a guide groove opened at the lower end of the load-bearing beam. An extension plate is connected to the end of the load-bearing beam via a pivot, and the extension plate is connected to an adjusting plate via a connecting hinge. The connecting hinge facilitates the folding and unfolding of the adjusting plate, thereby reducing the overall length of the load-bearing beam. An auxiliary baffle is connected to the adjusting plate via a pivot, and the pivots on the auxiliary baffle and the extension plate are both fixed by a first locking member. Threaded posts are fixed to the sides of both the extension plate and the adjusting plate, and the extension plate and the adjusting plate are fixed to each other by a second locking member. A receiving groove is provided on both the extension plate and the adjusting plate to provide space for the upper slider of the second clamping component to move.

[0008] Preferably, the first clamping component and the second clamping component have the same structure, and the second clamping component includes a support frame and a transmission screw mounted on the support frame. Two limiting clamps are mounted on the transmission screw, and clamping blocks are fixed on the limiting clamps.

[0009] By adopting the above technical solution, the limiting clamp can be used to clamp and fix the transported and hoisted objects after they have been moved.

[0010] Preferably, the threads on the two ends of the transmission screw have opposite directions, and the transmission screw is threadedly connected to two limiting clamps through the reverse threads at both ends, and the upper end of the limiting clamp can slide on the support frame.

[0011] By adopting the above technical solution, the two threaded limit clamps can move synchronously relative to each other through the reverse threads at both ends of the transmission screw.

[0012] Preferably, the outer wall of the upper slider of the second clamping component and the inner wall of the guide groove are in contact with each other, and the receiving groove on the extension plate and the adjustment plate are on the same straight line after they are flattened, and the size of the receiving groove and the guide groove are equal.

[0013] By adopting the above technical solution, the relative flushing of the receiving groove and the guide groove facilitates the movement of the slider on the second clamping component within the receiving groove.

[0014] Preferably, the extension plate can rotate at the end of the supporting beam via a pivot, and the auxiliary baffle can also rotate at the end of the adjusting plate via a pivot. The pivot surfaces of both the extension plate and the auxiliary baffle are provided with threads, and the threads on the pivot surfaces of both the extension plate and the auxiliary baffle are adapted to and connected to the first locking member.

[0015] By adopting the above technical solution, the rotation of the extension plate or auxiliary baffle makes it easier to clamp the ends of short or long objects during transportation and hoisting, thereby improving the stability of object transportation.

[0016] Preferably, the extension plate and the adjustment plate are symmetrically arranged about the central axis of the load-bearing crossbeam, and the adjustment plate is in a folded state in the initial state.

[0017] By adopting the above technical solution and adjusting the folding of the plate, it is possible to avoid occupying too much operating space when transporting short items.

[0018] Preferably, the first locking element is a locking nut, and the side of the locking nut facing the supporting beam has multiple anti-slip protrusions.

[0019] By adopting the above technical solution, the anti-slip protrusions on the surface of the locking nut can improve the stability of the locking nut during positioning and reduce the probability of slippage.

[0020] Preferably, the second locking element includes a telescopic plate and two positioning caps mounted on the telescopic plate, and the telescopic plate is composed of two branch plates, the length of which can be adjusted for telescopic extension.

[0021] By adopting the above technical solution, the positioning cap is rotated and screwed onto the threaded post, thereby completing the position locking of both the extension plate and the adjustment plate after folding or unfolding.

[0022] Preferably, the positioning cap is rotatable on the telescopic plate, and the inner wall of the positioning cap is provided with an internal thread that matches the threaded post, and the positioning cap and the threaded post are threadedly connected.

[0023] By adopting the above technical solution, the positioning cap can be easily connected to the threaded post through rotation.

[0024] Compared with the prior art, the beneficial effects of the present invention are: the hoist can be folded down without adjusting the gripper stroke through the foldable and unfoldable crossbeam, reducing the overall volume; at the same time, when transporting and hoisting excessively long objects, it can be unfolded to provide the necessary movement stroke for the gripper; and when hoisting objects, the ends of the objects can be pressed against each other, improving the stability of object transport and hoisting. 1. The device is equipped with a first clamping component and a second clamping component. The first clamping component can clamp the middle section of the object, while the second clamping component can fix both ends of the object, thereby improving the stability of the object during transportation and hoisting. 2. It is equipped with an extension plate and an adjustment plate. The adjustment plate and the extension plate are connected by a hinge. When transporting long objects, the adjustment plate is unfolded so that the adjustment plate, the extension plate and the load-bearing crossbeam are flush with each other. At this time, the receiving grooves on the extension plate and the adjustment plate can provide space for the upper slider of the second clamping component to move, so that it can be adjusted according to objects of different lengths. In the initial state, the adjustment plate is in a folded state, which can greatly reduce the overall space occupied when transporting short objects. 3. An extension plate is provided. After the first and second clamping components fix the short object, the extension plate is rotated on the bearing beam, causing it to rotate around the pivot to an inclined state. After the extension plate rotates, it and the adjusting plate can be used to hold the end of the object together, thereby further improving the lifting stability of the object. When lifting a long object, the adjusting plate rotates to a horizontal state to provide movement space for the second clamping component. At the same time, the auxiliary baffle can be rotated to hold the end of the long object together. Thus, the extension plate and the adjusting plate can not only be used to fix the end of the object, but also to provide the movement path for the second clamping component. Attached Figure Description

[0025] Figure 1 This is a frontal perspective view of the present invention; Figure 2 This is a schematic diagram of the structure of the first clamping component and the second clamping component of the present invention; Figure 3 This is a schematic diagram of the transmission lead screw and limiting clamping plate structure of the present invention; Figure 4 For the present invention Figure 1 Enlarged structural diagram at point A in the middle; Figure 5 This is a schematic diagram of the telescopic plate and positioning cap structure of the present invention; Figure 6 This is a schematic diagram of the structure of the adjusting plate after rotation according to the present invention; Figure 7 This is a schematic diagram of the structure of the extension plate and adjustment plate of the present invention after they are unfolded. Figure 8This is a schematic diagram of the structure of the auxiliary baffle after rotation according to the present invention; Figure 9 This is a schematic diagram of the extension plate, docking hinge, and adjustment plate structure of the present invention; Figure 10 This is a schematic diagram of the structure of the first locking element of the present invention.

[0026] In the diagram: 1. Load-bearing crossbeam; 2. Positioning side lug; 3. Suspension cable; 4. First clamping component; 5. Second clamping component; 501. Support frame; 502. Transmission screw; 503. Limiting clamp; 504. Clamping block; 6. Guide groove; 7. Extension plate; 8. Connecting hinge; 9. Adjusting plate; 10. Auxiliary baffle; 11. First locking component; 12. Second locking component; 121. Telescopic plate; 122. Positioning cap; 13. Receiving groove; 14. Threaded post. Detailed Implementation

[0027] The technical solutions of 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 of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] Example 1: Please refer to Figures 1-10Existing hoisting machines use two jaws to clamp objects when lifting them in ports. However, the lengths of objects vary, and when lifting longer objects, the non-adjustable jaw spacing can cause the objects to wobble at both ends after being fixed in the middle. Furthermore, when the jaws are adjustable, the crossbeam supporting the jaws needs to be very long to provide the required travel distance. This can restrict operation in confined spaces. To address this problem, this embodiment discloses a hoisting machine including a supporting crossbeam 1 and four corners located around the supporting crossbeam 1. The positioning side ear 2 is connected to the boom via a suspension cable 3. A first clamping component 4 is provided at the middle of the lower end of the bearing beam 1, and second clamping components 5 are provided on the left and right sides of the first clamping component 4. The upper slider of the second clamping component 5 is located in the guide groove 6 opened at the lower end of the bearing beam 1. The end of the bearing beam 1 is connected to an extension plate 7 via a pivot, and the extension plate 7 is connected to an adjusting plate 9 via a connecting hinge 8. The connecting hinge 8 facilitates the folding and unfolding of the adjusting plate 9, thereby reducing the overall length of the beam. An auxiliary baffle 10 is connected to the adjusting plate 9 via a pivot, and the pivots on the auxiliary baffle 10 and the extension plate 7 are both fixed by a first locking member 11. Threaded posts 14 are fixed to the sides of both the extension plate 7 and the adjusting plate 9. The extension plate 7 and the adjusting plate 9 are fixed to each other by the second locking member 12. Both the extension plate 7 and the adjusting plate 9 have receiving grooves 13, which provide space for the upper slider of the second clamping component 5 to move. The first clamping component 4 and the second clamping component 5 have the same structure. The second clamping component 5 includes a support frame 501 and a transmission screw 502 mounted on the support frame 501. Two limiting clamps 503 are mounted on the transmission screw 502, and clamping blocks 504 are fixed on the limiting clamps 503. The threads on the two ends of the transmission screw 502 run in opposite directions, and the transmission screw 502 is threadedly connected to the two limiting clamps 503 through the reverse threads at both ends. The upper ends of the limiting clamps 503 can slide on the support frame 501. The outer wall of the upper slider of the holding component 5 and the inner wall of the guide groove 6 are in contact with each other. After the extension plate 7 and the adjusting plate 9 are flattened, the receiving groove 13 on them is on the same straight line as the guide groove 6, and the receiving groove 13 and the guide groove 6 are the same size. The rotating shaft surfaces of the extension plate 7 and the auxiliary baffle 10 are both provided with threads. The extension plate 7 and the adjusting plate 9 are symmetrically arranged about the central axis of the bearing beam 1. The adjusting plate 9 is in a folded state in the initial state. The first locking component 11 is a locking nut, and the side of the locking nut facing the bearing beam 1 is provided with multiple anti-slip protrusions. The second locking component 12 includes a telescopic plate 121 and two positioning caps 122 installed on the telescopic plate 121. The telescopic plate 121 is composed of two branch plates, and the length of the telescopic plate 121 can be adjusted by telescoping.The positioning cap 122 is rotatable on the telescopic plate 121, and its inner wall is provided with an internal thread that matches the threaded post 14; the positioning cap 122 and the threaded post 14 are threadedly connected.

[0029] When short objects need to be transported and hoisted, the boom lowers the load-bearing beam 1 via the suspension cable 3. Then, the short object to be transported is placed onto the first clamping component 4 and the second clamping component 5. At this time, the transmission screw 502 is rotated. After the transmission screw 502 rotates, the two limit clamping plates 503 move synchronously relative to each other using the reverse threads at both ends. The movement of the limit clamping plates 503 allows the clamping blocks 504 on them to fix the short object. The first clamping component 4 is used to fix the middle section of the object, while the second clamping components 5 on both sides are used to clamp the two ends of the object. When long objects need to be transported, the second locking piece 12 between the extension plate 7 and the adjusting plate 9 is released. At this time, the adjusting plate 9 is rotated so that it is flush with the extension plate 7 and the load-bearing beam 1. Then, the load is lifted... The second locking member 12 is used to fix the extension plate 7 and the adjusting plate 9. Since the extension plate 7 and the adjusting plate 9 are both provided with receiving grooves 13, the second clamping member 5 can be pushed so that the slider at the upper end of the second clamping member 5 can slide in the receiving grooves 13 on the extension plate 7 and the adjusting plate 9. When the extended plate 7 and the adjusting plate 9 are unfolded, they can provide the required movement stroke when transporting long objects. Then, the first clamping member 4 and the second clamping member 5 can be used to clamp the middle section and both ends of the long object normally, thereby improving the adaptability when transporting and hoisting objects of different lengths. The adjusting plate 9 and the auxiliary baffle 10 are in a folded state in the initial state, that is, above the bearing beam 1. Therefore, when transporting short objects, they will not occupy the operating space of the bearing beam 1. The specific operation method of the second locking member 12 disclosed in this embodiment is as follows: Since the positioning cap 122 can rotate on the telescopic plate 121, the two positioning caps 122 are aligned with the threaded posts 14 on the sides of the extension plate 7 and the adjusting plate 9, respectively. Then, the positioning caps 122 are rotated on the telescopic plate 121 and screwed onto the threaded posts 14, thus completing the fixation of the extension plate 7 and the adjusting plate 9. After the port objects to be hoisted are installed, the staff moves away from the hoisting area. At this time, the staff remotely controls the hoisting machine through the remote control system, thereby realizing the automatic hoisting of the hoisting machine and reducing the risk of human approach.

[0030] Example 2: The technical content disclosed in this example is a further improvement based on Example 1 described above. The following technical content is disclosed in this example: Figure 1 , Figure 6 , Figure 8 and Figure 9As shown, the extension plate 7 can rotate at the end of the supporting beam 1 via a pivot, and the auxiliary baffle 10 can also rotate at the end of the adjusting plate 9 via a pivot. The pivot surfaces of both the extension plate 7 and the auxiliary baffle 10 are provided with threads. The extension plate 7 and the adjusting plate 9 are symmetrically arranged about the central axis of the supporting beam 1, and the adjusting plate 9 is in a folded state in the initial state.

[0031] After clamping the object, release the first locking member 11 on the rotating shaft of the extension plate 7, rotate the extension plate 7 to the tilted state, and when the extension plate 7 is rotated to the correct position, rotate the first locking member 11 in the opposite direction. After the first locking member 11 rotates, it can fix the rotating shaft of the extension plate 7. At this time, after the extension plate 7 is rotated to the tilted state, the end of the object is pressed against the extension plate 7 and the adjusting plate 9, which can further improve the stability of the object during hoisting. After the long object is fixed by the first clamping component 4 and the second clamping component 5, release the first locking member 11 on the rotating shaft of the auxiliary baffle 10, and rotate the auxiliary baffle 10 on the adjusting plate 9 to the tilted state. The rotation of the auxiliary baffle 10 can press against the end of the long object to prevent the object from shaking during transportation and causing the object to slide from both sides, thereby improving the overall safety of the object transportation and hoisting and reducing the probability of safety accidents during operation.

[0032] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0033] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A hoist comprising a load carrying beam (1) and positioning side ears (2) located at the four corner edges of the load carrying beam (1), the positioning side ears (2) being interconnected to a boom by means of a suspension cable (3), characterised in that: The lower middle of the bearing crossbeam (1) is provided with a first clamping part (4), and the left and right sides of the first clamping part (4) are provided with a second clamping part (5), the upper end sliding block of the second clamping part (5) is located in the guide groove (6) opened in the lower end of the bearing crossbeam (1), the end of the bearing crossbeam (1) is connected with an extension plate (7) through a rotating shaft, and the extension plate (7) is connected with an adjusting plate (9) through a butt hinge (8), the butt hinge (8) is convenient for folding and unfolding the adjusting plate (9), so that the overall length of the bearing crossbeam (1) is reduced, the auxiliary baffle (10) is connected with the rotating shaft on the adjusting plate (9), and the rotating shafts on the auxiliary baffle (10) and the extension plate (7) are all fixed through the first locking piece (11), the side edges of the extension plate (7) and the adjusting plate (9) are all fixed with threaded columns (14), and the extension plate (7) and the adjusting plate (9) are fixed with each other through the second locking piece (12), the extension plate (7) and the adjusting plate (9) are all provided with accommodating grooves (13), and the accommodating grooves (13) are used for providing the upper end sliding block moving space of the second clamping part (5).

2. A hoist as claimed in claim 1 wherein: The first clamping part (4) and the second clamping part (5) are the same in structure, and the second clamping part (5) comprises a supporting frame (501) and a transmission screw rod (502) mounted on the supporting frame (501), two limiting clamping plates (503) are mounted on the transmission screw rod (502), and a clamping block (504) is fixed on the limiting clamping plate (503).

3. A hoist as claimed in claim 2, characterised in that: The thread directions of the surfaces of the two ends of the transmission screw rod (502) are opposite, the transmission screw rod (502) is threadedly connected with the two limiting clamping plates (503) through the opposite threads of the two ends, and the upper end of the limiting clamping plate (503) can slide on the supporting frame (501).

4. A hoist as claimed in claim 2 wherein: The outer wall of the upper end sliding block of the second clamping part (5) and the inner wall of the guide groove (6) are matched with each other, the accommodating grooves (13) on the extension plate (7) and the adjusting plate (9) are located on the same straight line with the guide groove (6) after being unfolded, and the sizes of the accommodating grooves (13) and the guide groove (6) are equal.

5. A hoist as claimed in claim 1 wherein: The extension plate (7) can rotate on the end of the bearing crossbeam (1) through the rotating shaft, the auxiliary baffle (10) can also rotate on the end of the adjusting plate (9) through the rotating shaft, the surfaces of the rotating shafts of the extension plate (7) and the auxiliary baffle (10) are all provided with threads, and the thread surfaces of the rotating shafts of the extension plate (7) and the auxiliary baffle (10) are all connected with the first locking piece (11).

6. A hoist as claimed in claim 1 wherein: The extension plate (7) and the adjusting plate (9) are symmetrically arranged about the central axis of the bearing crossbeam (1), and the adjusting plate (9) is in a folded state in the initial state.

7. A hoist as claimed in claim 1 wherein: The first locking piece (11) is a locking nut, and a plurality of anti-skid protrusions are arranged on the surface of the locking nut facing the bearing crossbeam (1).

8. A hoist as claimed in claim 1 wherein: The second locking piece (12) comprises a telescopic plate (121) and two positioning caps (122) mounted on the telescopic plate (121), the telescopic plate (121) is composed of two branch plates, and the length of the telescopic plate (121) can be adjusted.

9. A hoist as claimed in claim 8, characterised in that: The positioning cap (122) can rotate on the telescopic plate (121), and an inner wall of the positioning cap (122) is provided with an inner thread matched with the threaded column (14), and the positioning cap (122) and the threaded column (14) are in threaded connection.

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