Gantry hook hook distance reset device and gantry hook hook distance reset equipment

Abstract

The embodiment of the present application provides a gantry hook hook distance resetting device and a gantry hook hook distance resetting equipment, and relates to the technical field of metallurgical industry. The problems of great difficulty and high risk coefficient of gantry hook hook distance adjustment are solved. The gantry hook hook distance resetting device comprises a base, a working platform, a supporting component, a driving mechanism and a controller. The working platform is movably arranged on the base in the horizontal direction. The supporting component is fixed on the working platform, and the supporting component is provided with a groove for accommodating and limiting the gantry hook. The driving mechanism is arranged on the base and connected with the working platform. The driving mechanism is connected with the controller, and the controller is used for controlling the driving mechanism to drive the working platform and the supporting component to move synchronously relative to the base in the horizontal direction. The gantry hook hook distance resetting equipment comprises the above device. Intelligent remote operation is realized instead of manual operation. The precision and efficiency of the gantry hook hook distance adjustment are improved. The safety risk coefficient can be greatly reduced.

Description

Technical Field

[0001] This invention relates to the field of metallurgical technology, and more specifically, to a gantry hook distance reset device and a gantry hook distance reset equipment. Background Technology

[0002] Bridge cranes are lifting equipment installed above workshops, warehouses, and material yards for material handling. They fully utilize the space beneath the bridge frame to lift materials without being obstructed by ground equipment. Bridge cranes are the most widely used and numerous type of lifting machinery.

[0003] Bridge cranes are commonly used in the metallurgical industry and are indispensable lifting equipment for metallurgical enterprises. Bridge cranes used for lifting molten steel and other high-temperature liquid molten metals have strict standards and must use fixed, specialized lifting tools. Because the sizes of the molten steel ladles vary, the fixed, specialized lifting tools used also vary. Existing technology has adapted to lifting molten steel ladles of different sizes by changing the distance between the two hooks of the lifting tool.

[0004] Because the distance between the two hooks can be altered, crane operators may inadvertently cause the bottom of one hook to touch the ground or other obstacles, changing the distance between them. If the distance between the two hooks is not restored in time, it will directly affect production and may even lead to a major safety accident.

[0005] The existing gantry hook with manually adjustable hook spacing includes a gantry hook beam and axle pins. Arc-shaped axle pin slides are installed at the two hanging points of the gantry hook beam, and adjustment devices are installed at both ends of the gantry hook beam. By adding a manual screw-type adjustment device, the hook spacing can be adjusted without adding a crane or replacing the gantry hook, thus meeting the user's requirements for lifting ladles of different specifications of molten steel and molten iron.

[0006] The following disadvantages exist: 1. Workers need to stand at a certain height (over 2 meters), which is considered high-altitude work. Workers must wear safety belts, making the work difficult; 2. Workers must use ladders or build platforms to complete the task. If working on a ladder, the risk is extremely high. Workers are prone to losing their center of gravity and causing accidents during the adjustment process. If a platform is built, it not only requires a suitable site but also requires close-range on-site contact and adjustment, posing significant safety hazards. In addition, it wastes human resources and affects the working space. Summary of the Invention

[0007] The present invention aims to provide, for example, a gantry hook distance reset device that can improve the problems of high difficulty and high risk in adjusting the gantry hook distance.

[0008] The present invention also aims to provide a gantry hook distance reset device, which can improve the problem of the difficulty and high risk factor of adjusting the gantry hook distance.

[0009] The embodiments of the present invention can be implemented as follows:

[0010] An embodiment of the present invention provides a gantry hook distance reset device, including a base, a working platform, a support member, a drive mechanism, and a controller; the working platform is movably disposed on the base in a horizontal direction; the support member is fixed on the working platform and is provided with a groove for accommodating and limiting the gantry hook; the drive mechanism is disposed on the base and is connected to the working platform; the drive mechanism is connected to the controller, and the controller is used to control the drive mechanism to drive the working platform and the support member to move synchronously relative to the base in a horizontal direction.

[0011] In addition, the gantry hook distance reset device provided in the embodiments of the present invention may also have the following additional technical features:

[0012] Optionally, the gantry hook distance reset device further includes a hinge mechanism; the hinge mechanism is disposed on the base, the hinge mechanism is connected to the working platform, the drive mechanism is connected to the hinge mechanism, and the hinge mechanism is used to drive the working platform to move in an upward arc relative to the base in the horizontal direction under the drive of the drive mechanism.

[0013] Optionally, the hinge mechanism includes a first hinge rod, a second hinge rod, and a hinge connecting rod; the first hinge rod, the hinge connecting rod, and the second hinge rod are hinged sequentially, with the end of the first hinge rod away from the hinge connecting rod and the end of the second hinge rod away from the hinge connecting rod respectively hinged horizontally at intervals on the working platform, and the middle portions of the first hinge rod and the middle portions of the second hinge rod respectively rotatably mounted on the base at intervals in the horizontal direction;

[0014] The driving mechanism is hinged to the first hinge rod or the second hinge rod, and the driving mechanism is used to drive the first hinge rod or the second hinge rod to swing.

[0015] Optionally, the drive mechanism includes a hydraulic cylinder and a hydraulic station; the hydraulic cylinder is mounted on the base, the drive end of the hydraulic cylinder is hinged to the first hinge rod or the second hinge rod, the hydraulic cylinder is connected to the hydraulic station, and the hydraulic station is electrically connected to the controller.

[0016] Optionally, the number of hinge mechanisms is two; the two hinge mechanisms are arranged side by side at intervals on both sides of the working platform perpendicular to the horizontal direction.

[0017] Optionally, the gantry hook distance reset device further includes a first limit switch; the first limit switch is disposed on the support member, the first limit switch is electrically connected to the controller, the first limit switch is used to detect and output a first signal that the gantry hook has moved down into place, and the controller is used to receive the first signal from the first limit switch and control the gantry hook to stop moving down.

[0018] Optionally, the gantry hook distance reset device further includes a second limit switch and a third limit switch; the second limit switch and the third limit switch are horizontally spaced on the base and located on both sides of the working platform; the second limit switch and the third limit switch are both electrically connected to the controller, and the second limit switch or the third limit switch is used to detect and output a second signal or a third signal that the working platform has moved into position in the horizontal direction, and the controller is used to control the working platform to stop according to the second signal or the third signal.

[0019] Optionally, the gantry hook distance reset device further includes a buffer; the buffer is disposed on the base and is located between the working platform and the base, and the buffer is used to buffer the working platform when the gantry hook moves to the detection position of the first limit switch.

[0020] Optionally, the top of the groove is provided with an opening for the gantry hook to be inserted into the groove from top to bottom; the groove has a first limiting surface and a second limiting surface that are positioned opposite each other, and the first limiting surface and the second limiting surface are respectively used to limit the two sides of the gantry hook in the horizontal direction.

[0021] An embodiment of the present invention also provides a gantry hook distance reset device. The gantry hook distance reset device includes two gantry hook distance reset devices; the two gantry hook distance reset devices are arranged side by side with intervals, and the bases of the two gantry hook distance reset devices are integrally formed.

[0022] The beneficial effects of the gantry hook distance reset device and gantry hook distance reset equipment of the present invention include, for example:

[0023] The gantry hook distance reset device includes a base, a working platform, a support component, a drive mechanism, and a controller. The working platform is movably mounted on the base in a horizontal direction. The support component is fixed on the working platform and has a groove for accommodating and limiting the gantry hook. The drive mechanism is mounted on the base and connected to the working platform. The drive mechanism is connected to the controller, which controls the drive mechanism to drive the working platform and the support component to move synchronously relative to the base in a horizontal direction.

[0024] It enables intelligent remote operation to replace manual operation, improving the accuracy and efficiency of gantry hook spacing adjustment. The safety risk factor is significantly reduced, as the gantry hook device placed on the support structure is only a small part, and its weight is much lighter, making it more stable and reliable, especially when installed in the groove of the support structure. It effectively addresses the problems of high difficulty and high risk associated with gantry hook spacing adjustment.

[0025] The gantry hook distance reset device, including the aforementioned gantry hook distance reset device, can improve the problem of the difficulty and high risk factor in adjusting the gantry hook distance. Attached Figure Description

[0026] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a front view of the gantry hook distance reset device provided in an embodiment of the present invention;

[0028] Figure 2 This is a side view of the gantry hook distance reset device provided in an embodiment of the present invention;

[0029] Figure 3 This is a schematic diagram of the structure of the gantry hook distance reset device provided in an embodiment of the present invention;

[0030] Figure 4 The control circuit diagram of the gantry hook distance reset device provided in the embodiment of the present invention.

[0031] Icons: 10-Gantry hook distance reset device; 20-Gantry hook distance reset equipment; 100-Base; 200-Working platform; 300-Supporting component; 310-Slot; 311-Opening; 312-First limiting surface; 313-Second limiting surface; 400-Hinge mechanism; 410-First hinge rod; 420-Second hinge rod; 430-Hinge connecting rod; 500-Hydraulic cylinder; 510-Hydraulic station; 600-First limit switch; 610-Second limit switch; 620-Third limit switch; 700-Buffer; 800-Crossbeam; 810-Arc groove; 820-Gantry hook. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0033] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0034] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0035] In the description of this invention, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of this invention is usually placed, they are only for the convenience of describing this invention 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, and therefore should not be construed as a limitation of this invention.

[0036] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0037] It should be noted that, where there is no conflict, the features in the embodiments of the present invention can be combined with each other.

[0038] The following is combined with Figures 1 to 4 The gantry hook distance reset device 10 provided in this embodiment will be described in detail.

[0039] Please refer to Figure 1 , Figure 2 as well as Figure 3An embodiment of the present invention provides a gantry hook distance reset device 10, including a base 100, a working platform 200, a support member 300, a drive mechanism, and a controller; the working platform 200 is movably disposed on the base 100 in a horizontal direction; the support member 300 is fixed on the working platform 200, and the support member 300 is provided with a groove 310 for accommodating and limiting the gantry hook 820; the drive mechanism is disposed on the base 100 and is connected to the working platform 200; the drive mechanism is connected to the controller, and the controller is used to control the drive mechanism to drive the working platform 200 and the support member 300 to move synchronously relative to the base 100 in a horizontal direction.

[0040] It should be noted that in this embodiment, "horizontal direction" refers to along... Figure 1 The direction from arrow A to arrow B, that is, from left to right, includes "the straight line direction from arrow A to arrow B, the curved or arc direction from arrow A to arrow B, or the wavy line direction from arrow A to arrow B", all of which refer to the horizontal direction.

[0041] "The groove 310 that accommodates and limits the gantry hook 820" means that the groove 310 can not only accommodate the gantry hook 820, but also limit the position of the gantry hook 820. That is, after the gantry hook 820 is put into the groove 310, its position relative to the groove 310 is almost fixed. The gantry hook 820 can only be moved synchronously when the support member 300 moves in the horizontal direction.

[0042] Reference Figure 3 The gantry hook 820 is also movably mounted on the crossbeam 800 in the horizontal direction. When the hook distance of the gantry hook 820 needs to be adjusted, the gantry hook distance reset device 10 is placed below the gantry hook 820. Then, the gantry hook 820 moves downward and inserts into the slot 310 of the support member 300. At this time, the controller controls the drive mechanism to drive the working platform 200 to move left or right. The working platform 200 synchronously drives the support member 300 and the gantry hook 820 in the slot 310 to move left or right. The controller can control the drive mechanism according to the actual hook distance adjustment. In this way, one person can complete the entire process of adjusting the hook of the large casting crane, realizing intelligent remote operation to replace manual operation, while improving the efficiency and accuracy of hook distance adjustment; the safety risk factor can be greatly reduced. When the gantry hook 820 is placed in the slot 310, it is only a small part of the weight, and its own weight is much lighter, making it more stable and reliable.

[0043] Reference Figure 3In this embodiment, the gantry hook 820 is slidably mounted on the crossbeam 800 along the arc-shaped groove 810. The gantry hook 820 can be moved to its lowest position to the left or right along the arc-shaped groove 810. In other words, the gantry hook 820 can only be adjusted to two positions: left or right. Therefore, when adjusting the position of the gantry hook 820 using the gantry hook distance reset device 10, it can only be moved to either the left or the right. In other embodiments, whether to move left or right, and by how far, is controlled by the controller via the drive mechanism.

[0044] Reference Figure 1 In this embodiment, the top of the groove 310 is provided with an opening 311, which is used for the gantry hook 820 to be placed into the groove 310 from top to bottom; the groove 310 has a first limiting surface 312 and a second limiting surface 313 that are positioned opposite each other, and the first limiting surface 312 and the second limiting surface 313 are respectively used to limit the two sides of the gantry hook 820 in the horizontal direction.

[0045] The gantry hook 820 is inserted from top to bottom through the opening 311 between the first limiting surface 312 and the second limiting surface 313. As the supporting component 300 moves left and right, it drives the gantry hook 820 to move left and right.

[0046] Reference Figure 1 as well as Figure 2 In this embodiment, the gantry hook distance reset device 10 further includes a hinge mechanism 400; the hinge mechanism 400 is disposed on the base 100, the hinge mechanism 400 is connected to the work platform 200, the drive mechanism is connected to the hinge mechanism 400, and the hinge mechanism 400 is used to drive the work platform 200 to move in an upward arc relative to the base 100 in the horizontal direction under the drive of the drive mechanism.

[0047] "Moving in an upward-convex arc along the horizontal direction" means moving from left to right. The work platform 200 moves upward first and then downward, causing the support component 300 to drive the gantry hook 820 to move along the arc groove 810 on the crossbeam 800.

[0048] Reference Figure 1 as well as Figure 2In this embodiment, the hinge mechanism 400 includes a first hinge rod 410, a second hinge rod 420, and a hinge connecting rod 430. The first hinge rod 410, the hinge connecting rod 430, and the second hinge rod 420 are hinged sequentially. The end of the first hinge rod 410 away from the hinge connecting rod 430 and the end of the second hinge rod 420 away from the hinge connecting rod 430 are respectively hinged horizontally at intervals on the work platform 200. The middle parts of the first hinge rod 410 and the middle parts of the second hinge rod 420 are respectively rotatably mounted on the base 100 at intervals in the horizontal direction. The driving mechanism is hinged to the first hinge rod 410 or the second hinge rod 420, and the driving mechanism is used to drive the first hinge rod 410 or the second hinge rod 420 to swing.

[0049] Reference Figure 1 The hinge connecting rods 430 are arranged side-by-side at intervals below the work platform 200. The first hinge rod 410 and the second hinge rod 420 have the same shape and structure. The drive mechanism drives the first hinge rod 410 to swing, which in turn drives the second hinge rod 420 to swing, thereby driving the work platform 200 to swing left and right. The work platform 200, the first hinge rod 410, the hinge connecting rod 430, and the second hinge rod 420 are sequentially hinged to form a parallel double crank mechanism, which is a regular parallelogram mechanism.

[0050] Reference Figure 3 In this embodiment, the driving mechanism includes a hydraulic cylinder 500 and a hydraulic station 510; the hydraulic cylinder 500 is mounted on the base 100, the driving end of the hydraulic cylinder 500 is hinged to the first hinge rod 410 or the second hinge rod 420, the hydraulic cylinder 500 is connected to the hydraulic station 510, and the hydraulic station 510 is electrically connected to the controller.

[0051] The hydraulic station 510 is controlled by a controller, which in turn controls the movement of the hydraulic cylinder 500, driving the first hinge rod 410 and the second hinge rod 420 to swing synchronously. This enables remote intelligent control, improving control efficiency and accuracy.

[0052] Reference Figure 2 In this embodiment, there are two hinge mechanisms 400; the two hinge mechanisms 400 are arranged side by side at intervals on both sides of the work platform 200 perpendicular to the horizontal direction.

[0053] by Figure 2 The relative positions are introduced, and the direction "perpendicular to the horizontal direction" is... Figure 2 The direction of the middle arrow C, that is, the two hinge mechanisms 400 are arranged side by side and spaced apart on the left and right sides of the work platform 200, together ensuring the smooth swing of the work platform 200.

[0054] Reference Figure 1 as well as Figure 3In this embodiment, the gantry hook distance reset device 10 further includes a first limit switch 600; the first limit switch 600 is disposed on the support member 300 and is electrically connected to the controller. The first limit switch 600 is used to detect and output a first signal that the gantry hook 820 has moved down into place. The controller is used to receive the first signal from the first limit switch 600 and control the gantry hook 820 to stop moving down.

[0055] The precise positioning of the gantry hook 820 during descent is difficult to control manually. The first limit switch 600 prevents the gantry hook 820 from falling beyond its lowest position. Falling beyond this position would cause the ropes on the gantry hook 820 to loosen, leading to the hook 820 detaching from the slot 310 and tipping over. Therefore, during the gantry hook 820's descent into the slot 310, when it reaches the detection position of the first limit switch 600, the switch detects this and sends a signal to the controller. The controller then stops the gantry hook 820, ensuring it remains upright after insertion into the slot 310 and allowing for accurate adjustment of the lateral movement distance. If the gantry hook 820 is found to be tipping over or tilted, the hook distance adjustment will become less accurate.

[0056] Reference Figure 1 In this embodiment, the gantry hook distance reset device 10 further includes a second limit switch 610 and a third limit switch 620; the second limit switch 610 and the third limit switch 620 are arranged horizontally at intervals on the base 100 and located on both sides of the working platform 200; the second limit switch 610 and the third limit switch 620 are both electrically connected to the controller, and the second limit switch 610 or the third limit switch 620 is used to detect and output a second signal or a third signal that the working platform 200 has moved into position in the horizontal direction, and the controller is used to control the working platform 200 to stop according to the second signal or the third signal.

[0057] by Figure 1 The relative positions of the limit switches are described below. The second limit switch 610 is located on the left side of the working platform 200, and the third limit switch 620 is located on the right side of the working platform 200. When the working platform 200 swings to the left under the drive of the hydraulic cylinder 500, and reaches the set position of the second limit switch 610, the second limit switch 610 sends a detected second signal, and the controller stops the hydraulic cylinder 500. Similarly, when the working platform 200 swings to the right under the drive of the hydraulic cylinder 500, and reaches the set position of the third limit switch 620, the third limit switch 620 sends a detected third signal, and the controller stops the hydraulic cylinder 500.

[0058] In this embodiment, the gantry hook distance reset device 10 further includes a buffer 700; the buffer 700 is disposed on the base 100 and is located between the working platform 200 and the base 100. The buffer 700 is used to buffer the working platform 200 when the gantry hook 820 moves to the detection position of the first limit switch 600.

[0059] When the gantry hook 820 is lowered into the slot 310, the gantry hook 820 may generate a large impact force. A buffer 700 is set at the bottom of the working platform 200 to buffer the working platform 200 and prevent the supporting component 300 and the working platform 200 from being subjected to a large impact force.

[0060] An embodiment of the present invention also provides a gantry hook distance reset device 20. The gantry hook distance reset device 20 includes two gantry hook distance reset devices 10; the two gantry hook distance reset devices 10 are arranged side by side with intervals, and the bases 100 of the two gantry hook distance reset devices 10 are integrally formed.

[0061] The two gantry hook distance reset devices 10 are arranged side by side with intervals. They can be arranged sequentially from left to right, or they can be arranged symmetrically.

[0062] In this embodiment, two gantry hook distance reset devices 10 are symmetrically arranged, two third limit switches 620 are fixed together, and the two third limit switches 620 are located between the two working platforms 200. Two second limit switches 610 are respectively located on the sides of the two working platforms 200 that are far apart from each other. The two gantry hook distance reset devices 20 simultaneously adjust the distance between the two gantry hooks 820. The controller can control the two working platforms 200 to move closer or further apart, or it can control one working platform 200 to move left or right individually, all according to actual needs.

[0063] One hydraulic station 510 is provided, capable of centrally controlling two work platforms 200 or individually controlling any one of them. Two hydraulic cylinders 500 are provided, with the model determined by actual requirements. Four hinge mechanisms 400 are provided, with their size determined by actual requirements. Four buffers 700 are provided, with their model determined by actual requirements. To ensure a soft landing when the gantry hook 820 descends, two buffers 700 are evenly distributed at the bottom of each work platform 200, ensuring the stability of the connection between the work platform 200 and the base 100, avoiding hard collisions during descent, and eliminating safety hazards. This device makes the use of the platform safer and more efficient. Two hinge connecting rods 430 are provided, preferably made of tool steel with good heat treatment properties.

[0064] The working principle of the gantry hook distance reset device 10 and gantry hook distance reset equipment 20 provided in this embodiment is as follows: The gantry hook 820, whose hook distance needs to be adjusted, is lowered to the first limit switch 600 of the support component 300. The descent of the gantry hook 820 is automatically stopped by the remote controller system. When it is necessary to adjust the hook distance of the gantry hook 820 to the outside (left side), the crane operator remotely commands the hydraulic station 510 to extend the hydraulic cylinder 500 outward. At the same time, the hydraulic cylinder 500 pushes the hinge mechanism 400, thereby pushing the work platform 200, so that the work platform 200 moves until it touches the second limit switch 610, and finally the work platform 200 stops moving, achieving the purpose of adjusting the hook distance outward. Similarly, when it is necessary to adjust the hook distance inward (to the right), the crane operator remotely commands the hydraulic system to retract the hydraulic cylinder 500 inward. At the same time, the hydraulic cylinder 500 pushes the hinge mechanism 400, which in turn pushes the work platform 200, causing the work platform 200 to move until it touches the third limit switch 620. Finally, the work platform 200 stops moving, thus achieving the purpose of adjusting the hook distance inward.

[0065] Reference Figure 4 The specific circuit connections are as follows: When the gantry hook 820 descends and touches the first limit switch 600, the transmitter gantry PLC sends a first signal, stopping the gantry hook 820. The gantry operator presses the left-side open button S1, and the ground receiver receives the first signal, transmitting it to the base 100 electrical control cabinet PLC output K01 relay. The support moves to the left. When it touches the second limit switch 610 or S4, the K01 relay stops pressurizing and maintains pressure, completing the spreader relocation. When the operator presses the right-side retraction button S2, the ground receiver receives the signal, transmitting it to the base 100 electrical control cabinet PLC output K02 relay. The support moves to the right. When it touches the third limit switch 620 or S7, the K01 relay stops outputting, ending the operation. The transmitter gantry PLC and the base 100 electrical control cabinet PLC are both included in the controller.

[0066] The gantry hook distance reset device 10 provided in this embodiment has at least the following advantages:

[0067] One person can complete the entire adjustment process of the hook of a large casting crane. The safety risk factor can be significantly reduced. Placing the device on the support component 300 is only a small part, and its weight is much lighter. In particular, it is more stable and reliable when installed on the support component 300. It realizes intelligent remote operation to replace manual operation. Improve the accuracy and efficiency of the gantry hook 820 hook distance adjustment.

[0068] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A device for resetting the hook spacing of a portal hook, characterized in that It comprises: a base (100); a working platform (200) movably arranged on the base (100) in a horizontal direction; a support member (300) fixed on the working platform (200), the support member (300) is provided with a groove (310) for accommodating and limiting a gantry hook (820), an end of the gantry hook (820) is movably arranged in an arc-shaped groove (810) of a cross beam (800); a driving mechanism arranged on the base (100) and connected with the working platform (200); and a controller connected with the driving mechanism, the controller is used for controlling the driving mechanism to drive the working platform (200) and the support member (300) to move synchronously relative to the base (100) in a horizontal direction; a hinge mechanism (400) arranged on the base (100), the hinge mechanism (400) is connected with the working platform (200), the driving mechanism is connected with the hinge mechanism (400), and the hinge mechanism (400) is used for driving the working platform (200) to move along an upward convex arc relative to the base (100) under the driving of the driving mechanism, so that the support member (300) drives the gantry hook (820) to move along the arc-shaped groove (810); the hinge mechanism (400) comprises a first hinge rod (410), a second hinge rod (420) and a hinge connecting rod (430); the first hinge rod (410), the hinge connecting rod (430) and the second hinge rod (420) are sequentially hinged, one end of the first hinge rod (410) away from the hinge connecting rod (430) and one end of the second hinge rod (420) away from the hinge connecting rod (430) are respectively hingedly arranged on the working platform (200) in a horizontal direction, and a middle part of the first hinge rod (410) and a middle part of the second hinge rod (420) are respectively arranged on the base (100) in a horizontal direction; the driving mechanism is hinged with the first hinge rod (410) or the second hinge rod (420), and the driving mechanism is used for driving the first hinge rod (410) or the second hinge rod (420) to swing.

2. The gantry hook distance resetting device according to claim 1, wherein: the driving mechanism comprises a hydraulic cylinder (500) and a hydraulic station (510); the hydraulic cylinder (500) is arranged on the base (100), a driving end of the hydraulic cylinder (500) is hinged with the first hinge rod (410) or the second hinge rod (420), the hydraulic cylinder (500) is connected with the hydraulic station (510), and the hydraulic station (510) is electrically connected with the controller.

3. The gantry hook distance resetting device according to claim 1, wherein: The number of the hinge mechanisms (400) is two; two of the hinge mechanisms (400) are arranged side by side and spaced apart on two sides of the working platform (200) perpendicular to the horizontal direction.

4. The device according to any one of claims 1-3, characterized in that: The device further comprises a first limit switch (600); the first limit switch (600) is arranged on the support member (300), the first limit switch (600) is electrically connected with the controller, the first limit switch (600) is used for detecting a first signal that the output gantry hook (820) moves to a position, and the controller is used for receiving the first signal of the first limit switch (600) and controlling the gantry hook (820) to stop moving downward.

5. The device according to claim 4, characterized in that: The device further comprises a second limit switch (610) and a third limit switch (620); the second limit switch (610) and the third limit switch (620) are arranged on the base (100) and located on two sides of the working platform (200) along the horizontal direction; the second limit switch (610) and the third limit switch (620) are electrically connected with the controller, the second limit switch (610) or the third limit switch (620) is used for detecting a second signal or a third signal that the working platform (200) moves to a position along the horizontal direction, and the controller is used for controlling the working platform (200) to stop moving according to the second signal or the third signal.

6. The device according to claim 4, characterized in that: The device further comprises a buffer (700); the buffer (700) is arranged on the base (100), and the buffer (700) is located between the working platform (200) and the base (100), and the buffer (700) is used for buffering the working platform (200) when the gantry hook (820) moves to the detection position of the first limit switch (600).

7. The device according to claim 1, characterized in that: The top of the groove (310) is provided with an opening (311), the opening (311) is used for placing the gantry hook (820) into the groove (310) from top to bottom; the groove (310) has a first limit surface (312) and a second limit surface (313) opposite to each other, and the first limit surface (312) and the second limit surface (313) are respectively used for limiting the two sides of the gantry hook (820) along the horizontal direction.

8. A device for resetting the hook spacing of a carabiner, characterized in that The device comprises two devices according to any one of claims 1-7; two of the devices are arranged side by side and spaced apart, and the bases (100) of the two devices are integrally formed.

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