Automatic rotating pin lifting appliance

Abstract

An automatic rotating pin lifting appliance relates to the technical field of crane lifting appliances and comprises a telescopic guide column, a lifting beam, a floating adjusting device and a rotating pin device, a lifting beam is arranged below the crane trolley, and a lifting mechanism for lifting the lifting beam is mounted on the crane trolley; a vertical telescopic guide column is connected between the hanging beam and the crane trolley; the bottom of the hanging beam is connected with a rotating pin device through a floating adjusting device; the floating adjusting device comprises a fixing frame correspondingly connected with the hanging beam in a fastening mode, a floating frame is arranged below the fixing frame, and the four corner ends of the fixing frame and the four corner ends of the floating frame are correspondingly connected through universal adjusting mechanisms; the universal adjusting mechanism comprises two ball head connecting seats which are correspondingly and fixedly connected with the fixed frame and the floating frame respectively, and the two ball head connecting seats are correspondingly connected through a ball head connecting rod; the lifting rotating pin device is connected with the bottom of the beam through the floating adjusting device, so that the butt joint efficiency of the rotating pin device and a target is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of crane slings, in particular to an automatic pinning sling. Background Art

[0002] In today's lifting machinery field, most cranes are equipped with flexible lifting systems based on wire ropes. This system plays an indispensable role in heavy object handling due to its high strength and wear resistance. However, due to the inherent softness of the wire rope itself, a certain degree of shaking is inevitable during actual operation, which not only affects the accuracy of the positioning of the spreader, but also may cause instability of the goods during transportation, increasing the risk of operation.

[0003] Especially in special and extreme environments, such as heavy object handling tasks in high temperature, flammable and explosive environments, workers can no longer command on site, so there are more stringent requirements for the stability and accuracy of the lifting system. Traditional types of lifting equipment designs often cannot meet these high standards. They usually lack the ability to quickly and accurately dock with the target, resulting in low efficiency in complex working conditions, or even failure to complete the designated tasks.

[0004] A Chinese patent (publication number: CN214879643U) discloses an automated crane trolley with replaceable slings; the patent includes a trolley frame, an upper sling, a variety of lower slings, and a telescopic guide; the patent improves the stability of the upper sling's lifting and lowering through the telescopic guide; but it cannot enable the sling to dock with the target quickly and accurately. Utility Model Content

[0005] In order to overcome the deficiencies in the background technology, the utility model discloses an automatic pinning hanger.

[0006] In order to achieve the above-mentioned invention object, the utility model adopts the following technical solutions:

[0007] An automated swing pin hoist is installed under a crane trolley, comprising a telescopic guide column, a hanging beam, a floating adjustment device and a swing pin device; a hanging beam is provided under the crane trolley, and a lifting mechanism for lifting the hanging beam is installed on the crane trolley; a vertical telescopic guide column is connected between the hanging beam and the crane trolley; a swing pin device is connected to the bottom of the hanging beam through a floating adjustment device; the floating adjustment device comprises a fixed frame which is fastened to the hanging beam, a floating frame is provided under the fixed frame, and the four corner ends of the fixed frame and the floating frame are correspondingly connected through a universal adjustment mechanism; the universal adjustment mechanism comprises two ball head connecting seats which are respectively fastened to the fixed frame and the floating frame, and the two ball head connecting seats are correspondingly connected through a ball head connecting rod.

[0008] Preferably, a return spring is provided on the shaft sleeve between the two ball head connecting seats corresponding to the ball head connecting rod.

[0009] Preferably, the length of the inner cavity of the ball head connecting seat is greater than the diameter of the ball head of the ball head connecting rod.

[0010] Preferably, the swing pin device comprises a hanger frame, and the four corner ends of the hanger frame are rotatably connected with swing pins, and a driving device for driving the swing pin to rotate is provided on one side of the hanger frame corresponding to the swing pin.

[0011] Preferably, contact switches are installed at the four corner ends of the hanger frame.

[0012] Due to the adoption of the above-mentioned technical solution, the utility model has the following beneficial effects:

[0013] The utility model discloses an automatic pin-swinging hanger with a simple structure. A vertical telescopic guide column is connected between the hanging beam and the crane trolley. The telescopic guide column makes the hanging beam and the crane trolley rigidly guided and connected, so that the lifting beam will not swing when it is lifted or moved horizontally, so it can be quickly and accurately aimed at the target.

[0014] The bottom of the suspension beam of the utility model is connected with a rotating pin device through a floating adjustment device, and the floating adjustment device comprises a fixed frame and a floating frame, and the four corner ends of the fixed frame and the floating frame are correspondingly connected through a universal adjustment mechanism; when the rotating pin device is misaligned with the target, the ball head connecting rod can adaptively deflect, so that the rotating pin device can drive the floating frame to move and adjust in a universal direction in the horizontal plane until the rotating pin device is aligned with the target, and there is no need to repeatedly control the lifting and lowering of the rotating pin device and adjust the position of the rotating pin device, which greatly improves the efficiency of the docking of the rotating pin device with the target.

[0015] The utility model further installs contact switches at the four corner ends of the hanger frame, that is, when the rotation pin is inserted into the lock hole of the target, the hanger frame can contact the target and trigger the contact switch at the same time, which can send a signal to the operator, so that the operator can control the driving device to drive the rotation pin to rotate and achieve the purpose of locking. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a structural schematic diagram of a floating adjustment device;

[0018] Figure 3 It is a structural schematic diagram of the universal adjustment mechanism;

[0019] Figure 4 It is a structural schematic diagram of the transfer pin device;

[0020] Figure 5 A top view of the transfer pin device.

[0021] In the figure: 1. crane trolley; 2. telescopic guide column; 3. lifting beam; 4. floating adjustment device; 4-1. fixed frame; 4-2. floating frame; 4-3. ball head connecting seat; 4-4. ball head connecting rod; 4-5. reset spring; 5. rotating pin device; 5-1. spreader frame; 5-2. rotating pin; 5-3. driving device; 5-4. contact switch; 6. lifting mechanism. DETAILED DESCRIPTION

[0022] The present invention can be explained in detail through the following embodiments. The purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention. In the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "front", "back", "left", "right", etc. indicating directions or positional relationships, they only correspond to the drawings of the present application for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific direction.

[0023] Embodiment 1, in combination with Figures 1 to 5 , an automatic pin-swinging sling, installed under a crane trolley 1; comprising a telescopic guide column 2, a hanging beam 3, a floating adjustment device 4 and a pin-swinging device 5; a hanging beam 3 is provided under the crane trolley 1, and a lifting mechanism 6 for lifting the hanging beam 3 is installed on the crane trolley 1; as shown in the attached Figure 1 As shown, the lifting mechanism 6 includes a drum assembly installed on the crane trolley 1 and a movable pulley block installed on the suspension beam 3, and a steel wire rope is wound between the drum assembly and the movable pulley block; the drum assembly retracts and releases the steel wire rope to control the lifting and lowering of the suspension beam 3.

[0024] A vertical telescopic guide column 2 is connected between the hanging beam 3 and the crane trolley 1. The telescopic guide column 2 makes the hanging beam 3 and the crane trolley 1 rigidly guided and connected, so that the hanging beam 3 will not swing when it is raised or lowered or moved horizontally, so that it can be quickly and accurately aimed at the target.

[0025] The bottom of the hanging beam 3 is connected with a rotating pin device 5 through a floating adjustment device 4. The floating adjustment device 4 is used to enable the rotating pin device 5 to adaptively connect with the target, thereby effectively improving the efficiency of the docking between the rotating pin device 5 and the target and reducing the operating difficulty of the operator.

[0026] As attached Figure 4 and 5As shown, the swing pin device 5 includes a hanger frame 5-1, which is connected to the floating adjustment device 4 accordingly, and the four corner ends of the hanger frame 5-1 are rotatably connected with swing pins 5-2. A driving device 5-3 for driving the swing pin 5-2 to rotate is provided on one side of the hanger frame 5-1 corresponding to the swing pin 5-2, that is, when the swing pin 5-2 is inserted into the lock hole of the target, the driving device 5-3 can drive the swing pin 5-2 to rotate 90 degrees, thereby reaching a locked state; when the target is transferred to a predetermined position, the driving device 5-3 drives the swing pin 5-2 to rotate 90 degrees in the opposite direction to reach an unlocked state, and the swing pin device 5 can be controlled to rise, so that the swing pin device 5 is separated from the target; the driving device 5-3 can be a cylinder, a hydraulic cylinder or an electric telescopic cylinder.

[0027] Furthermore, contact switches 5-4 are installed at the four corner ends of the hanger frame 5-1, that is, when the turn pin 5-2 is inserted into the lock hole of the target, the hanger frame 5-1 can contact the target and trigger the contact switch 5-4, which can send a signal to the operator so that the operator can control the driving device 5-3 to drive the turn pin 5-2 to rotate and achieve the purpose of locking.

[0028] The floating adjustment device 4 includes a fixed frame 4-1 which is fastened to the suspension beam 3, a floating frame 4-2 is provided below the fixed frame 4-1, and the four corner ends of the fixed frame 4-1 and the floating frame 4-2 are correspondingly connected through a universal adjustment mechanism; the universal adjustment mechanism includes two ball head connecting seats 4-3 which are respectively fastened to the fixed frame 4-1 and the floating frame 4-2, and the two ball head connecting seats 4-3 are correspondingly connected through a ball head connecting rod 4-4; when the pivot pin device 5 is misaligned with the target, the ball head connecting rod 4-4 can adaptively deflect, so that the pivot pin device 5 can drive the floating frame 4-2 to move universally in the horizontal plane until the pivot pin device 5 is aligned with the target, without repeatedly controlling the lifting and lowering of the pivot pin device 5 and adjusting the position of the pivot pin device 5, which greatly improves the efficiency of docking the pivot pin device 5 with the target.

[0029] Furthermore, the ball head connecting rod 4-4 is provided with a return spring 4-5 on the rod body between the two ball head connecting seats 4-3, that is, before the docking operation, the two ends of the return spring 4-5 contact with the upper and lower ball head connecting seats 4-3, thereby forcing the ball head connecting rod 4-4 to maintain a vertical state, preventing the floating frame 4-2 from swaying and floating at will; Figure 3 As shown, the length of the inner cavity of the ball head connecting seat 4-3 is greater than the diameter of the ball head of the ball head connecting rod 4-4, that is, the ball head of the ball head connecting rod 4-4 can be inserted into the inner cavity of the ball head connecting seat 4-3 and move axially along the inner cavity of the ball head connecting seat 4-3, thereby allowing the floating frame 4-2 to have a certain range of vertical movement relative to the fixed frame 4-1, providing a buffer for the docking process and reducing potential impact.

[0030] The parts of the present invention that are not described in detail are prior art. It is obvious to those skilled in the art that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and it is intended that all changes that fall within the meaning and scope of equivalent elements are included in the present invention.

Claims

1. An automated pinning sling, mounted below a crane trolley (1), characterized by: The invention comprises a telescopic guide column (2), a suspension beam (3), a floating adjustment device (4) and a rotating pin device (5); a suspension beam (3) is provided below the crane trolley (1), and a lifting mechanism (6) for lifting the suspension beam (3) is installed on the crane trolley (1); a vertical telescopic guide column (2) is connected between the suspension beam (3) and the crane trolley (1); the bottom of the suspension beam (3) is connected to the rotating pin device (5) through the floating adjustment device (4); the floating adjustment device (4) comprises a fixed frame (4-1) which is correspondingly fastened to the suspension beam (3), a floating frame (4-2) is provided below the fixed frame (4-1), and the four corner ends of the fixed frame (4-1) and the floating frame (4-2) are correspondingly connected through a universal adjustment mechanism; the universal adjustment mechanism comprises two ball head connecting seats (4-3) which are respectively correspondingly fastened to the fixed frame (4-1) and the floating frame (4-2), and the two ball head connecting seats (4-3) are correspondingly connected through a ball head connecting rod (4-4).

2. The automatic pinning hanger according to claim 1, characterized in that: The ball head connecting rod (4-4) is provided with a return spring (4-5) on the rod body between the two ball head connecting seats (4-3).

3. The automatic pinning hanger according to claim 1, characterized in that: The length of the inner cavity of the ball head connecting seat (4-3) is greater than the diameter of the ball head of the ball head connecting rod (4-4).

4. The automatic pinning hanger according to claim 1, characterized in that: The swing pin device (5) comprises a hanger frame (5-1), the four corner ends of the hanger frame (5-1) are rotatably connected to swing pins (5-2), and a driving device (5-3) for driving the swing pin (5-2) to rotate is provided on one side of the hanger frame (5-1) corresponding to the swing pin (5-2).

5. The automatic pinning hanger according to claim 4, characterized in that: Contact switches (5-4) are installed at the four corner ends of the hanger frame (5-1).

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