Rotary automatic unhooking device

Abstract

The utility model relates to a rotary automatic unhooking device which comprises a connecting body and a base, the connecting body and the base are welded into a whole, an electric actuator is arranged on the rear side of the connecting body, a rotating arm is arranged on the rear side of the connecting body, an output transmission shaft of the electric actuator penetrates through the connecting body to be connected with the rotating arm, the rotating arm is hinged to a connecting rod, and the connecting rod is hinged to a sliding shaft. The sliding shaft is horizontally arranged, the base is of an inverted-U-shaped structure, and sliding shaft passing holes are formed in the two sides of the bottom of the base respectively. According to the utility model, the rotating arm is driven by the electric actuator to push and pull the connecting rod, so that accurate translation of the sliding shaft is realized, hooking and unhooking of the unhooking device are completed, and the working efficiency of hoisting of the crane is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automatic lifting appliances of cranes, in particular to a rotary automatic hook release device, which is convenient for automatic hook release during the unloading of ton bags, goods, etc. Background Art

[0002] With the progress of crane intelligent technology and the practical application of crane automation, traditional manual hook hanging and manual hook unhooking can no longer meet the actual use requirements. In the production process of more and more intelligent cranes, when the goods are lifted to the target position, automatic hook release is required. This is not only the need for the automation, continuity, and high efficiency of the production line, but also the most crucial step for intelligent cranes to get rid of manual assistance and cooperation. At the same time, in some specific industries and special working areas where personnel cannot participate in auxiliary cooperation, the automatic hook release function is of vital importance. Therefore, there is an urgent need to develop an automatic hook release device that is convenient for the unloading of ton bags, goods, etc., improve the transportation efficiency of goods, and at the same time solve the key problems in specific industries and special areas. Summary of the Utility Model

[0003] The purpose of the utility model is to overcome the above deficiencies and provide a rotary automatic hook release device that can complete automatic hook release when the goods are lifted to the target position; its mechanism has reliable actions and is convenient to operate, and through precise actions, reliable hook release of the goods is realized, improving the working efficiency of crane lifting.

[0004] The purpose of the utility model is achieved as follows:

[0005] A rotary automatic hook release device includes a connecting body and a base. The connecting body and the base are welded into one body. An electric actuator is provided at the rear side of the connecting body, and a rotating arm is provided at the rear side. The output transmission shaft of the electric actuator passes through the connecting body to connect the rotating arm. The rotating arm is hinged to a connecting rod, and the connecting rod is hinged to a sliding shaft. The sliding shaft is horizontally arranged. The base has an inverted U-shaped structure, and sliding shaft through holes are respectively provided on both sides of the bottom of the base.

[0006] Preferably, a lifting lug is provided at the top of the base, and the lifting lug is connected to a shackle, and the shackle is used to connect the lifting trolley.

[0007] Preferably, a bushing is provided in the sliding shaft through hole on one side of the base close to the rotating arm, and the bushing is in clearance fit with the sliding shaft.

[0008] Preferably, a positioning pin shaft is provided on the connecting body corresponding to the rotating arm for mechanically restricting the rotation angle of the rotating arm.

[0009] Preferably, two positioning pin shafts are provided, and the rotating arm swings between the two positioning pin shafts with the output transmission shaft as the rotation center.

[0010] The beneficial effects of the utility model are:

[0011] The swing arm is pushed and pulled by an electric actuator to drive the connecting rod, achieving precise translation of the sliding shaft and completing the locking and unlocking of the hook of the decoupling device; its mechanism has reliable movement and convenient operation, realizing reliable decoupling of goods and improving the working efficiency of the crane lifting. Brief Description of the Drawings

[0012] Figure 1 It is a schematic structural diagram (decoupling state) of a rotary automatic decoupling device of the present utility model.

[0013] Figure 2 It is a schematic structural diagram (hook-locking state) of a rotary automatic decoupling device of the present utility model.

[0014] Figure 3 It is Figure 2 the rear view of

[0015] Figure 4 It is Figure 3 the top view of

[0016] Figure 5 It is Figure 3 the left view of

[0017] Wherein: connecting body 1; base 2; sliding shaft through hole 2.1; swing arm 3; electric actuator 4; output transmission shaft 4.1; connecting rod 5; sliding shaft 6; lifting lug 7; shackle 8; bushing 9; positioning pin shaft 10. Detailed Embodiment

[0018] Referring to Figures 1-5 , the present utility model relates to a rotary automatic decoupling device, including a connecting body 1, a base 2, a swing arm 3, an electric actuator 4, a connecting rod 5 and a sliding shaft 6. The connecting body 1 and the base 2 are welded into one body. An electric actuator 4 is arranged at the rear side of the connecting body 1. The swing arm 3 is arranged at the front side of the connecting body 1. The electric actuator 4 is fixed on the connecting body 1 by screws. The output transmission shaft 4.1 of the electric actuator 4 passes through the connecting body 1 to connect the swing arm 3. The swing arm 3 is hinged to the connecting rod 5. The connecting rod 5 is hinged to the sliding shaft 6. The sliding shaft 6 is horizontally arranged. The base 2 is in an inverted U-shaped structure, and sliding shaft through holes 2.1 are respectively arranged on both sides of the bottom of the base 2.

[0019] A lifting lug 7 is arranged on the top of the base 2. The lifting lug 7 is connected to a shackle 8, and the shackle 8 is used to connect the lifting trolley.

[0020] A bushing 9 is provided in the sliding shaft through hole 2.1 on one side of the base 2 close to the swing arm 3. The bushing 9 is in clearance fit with the sliding shaft 6, facilitating the multi-frequency translation of the sliding shaft 6.

[0021] The electric actuator 4 is a general product, including a DC motor and a control module, and the rotation angle can be set to provide power for the swing arm 3.

[0022] The connecting body 1 is provided with a positioning pin shaft 10 corresponding to the swing arm 3, and the positioning pin shaft 10 is used to mechanically restrict the rotation angle of the swing arm 3 to ensure the safe and reliable operation of the swing arm 3.

[0023] There are two positioning pin shafts 10. The swing arm 3 swings between the two positioning pin shafts 10 with the output transmission shaft 2.1 as the rotation center to realize locking and unlocking of the hook.

[0024] Working principle:

[0025] The electric actuator 4 drives the swing arm 3 to rotate counterclockwise, the connecting rod 5 drives the sliding shaft 6 to contract, and the bottom opening of the inverted U-shaped base 2 opens, and the ton bag sling or the cargo sling automatically slides out from the sliding shaft 6 to complete unlocking.

[0026] The electric actuator 4 drives the swing arm 3 to rotate clockwise, the connecting rod 5 pushes the sliding shaft 6 to move leftward, the bottom opening of the inverted U-shaped base 2 closes, and the ton bag sling or the cargo sling is locked on the sliding shaft 6 to complete locking.

[0027] In addition to the above embodiments, the present invention also includes other implementation manners. Any technical solutions formed by equivalent transformation or equivalent substitution shall fall within the protection scope of the claims of the present invention.

Claims

1. A rotating automatic unhooking device, characterized in that: It includes a connector and a base, the connector and the base are welded together, an electric actuator is provided on the rear side of the connector, a swivel arm is provided on the rear side, the output transmission shaft of the electric actuator passes through the connector and connects to the swivel arm, the swivel arm is hinged to a connecting rod, the connecting rod is hinged to a sliding shaft, the sliding shaft is horizontally arranged, the base is an inverted U-shaped structure, and sliding shaft passage holes are respectively provided on both sides of the bottom of the base.

2. A rotating automatic unhooking device according to claim 1, characterized in that: A lifting lug is provided on the top of the base, and the lifting lug is connected to a shackle, and the shackle is used to connect a lifting trolley.

3. The automatic rotating unhooking device according to claim 1, characterized in that: A shaft sleeve is provided through a hole of the sliding shaft on one side of the base close to the rotating arm, and the shaft sleeve is in clearance fit with the sliding shaft.

4. The automatic rotating unhooking device according to claim 1, characterized in that: The connector is provided with a positioning pin corresponding to the rotating arm, which is used to mechanically constrain the rotation angle of the rotating arm.

5. The automatic rotating unhooking device according to claim 4, characterized in that: There are two positioning pin shafts, and the rotating arm swings between the two positioning pin shafts with the output transmission shaft as the rotation center.

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