Lifting hook deflection angle monitoring device, vertical hoisting monitoring device and mobile crane

Lifting hook deflection angle monitoring device, vertical hoisting monitoring device and mobile crane

  • CN 106,185,627 B
  • Filed: 08/04/2016
  • Issued: 09/08/2020
  • Est. Priority Date: 07/06/2016
  • Status: Active Grant
First Claim
Patent Images

1. The utility model provides a lifting hook declination monitoring devices which characterized in that:

  • the detection of the deflection angle of the lifting hook comprises the steps that a platform surface perpendicular to a lifting force action line of a lifting pulley block is arranged on a lifting hook assembly of the mobile crane, which is formed by combining a movable pulley assembly and a lifting hook assembly, and the condition that the lifting force action line of the lifting pulley block of the lifting hook is still perpendicular to the arranged platform surface when the lifting pulley block is lifted and lowered under different deflection angles of the lifting hook is met, and an angle measuring instrument is arranged on the platform surface to detect the deflection angle of the lifting hook;

    the movable pulley component and the lifting hook component of the lifting hook assembly are connected through connecting plates on two sides, the hinge shafts of the movable pulley component and the connecting plates on two sides and the hinge shafts of the connecting plates on two sides and the lifting hook component are arranged in a direction vertical to the axis of the coaxial movable pulley, the hinge shafts parallel to the axis of the coaxial movable pulley are arranged in the lifting hook component, and an angle measuring instrument is arranged on a platform surface vertical to the lifting force action line of the connecting plates on two sides and the lifting pulley block so as to detect the deviation angle of the lifting hook of the mobile crane;

    the lifting hook declination position is perpendicular to the intersection line of the platform surface and the horizontal plane through a lifting hook, and is influenced by the tendency and the restriction of the running position of the lifting hook and the lifted material resources, the lifting force action line of the lifting pulley block is rotated through the winding between the fixed pulley of the pulley block and the axis of the movable pulley, and the declination position of the lifting hook is changed under the combined action of the rotation of the axis of the lifting hook handle and the rotation of the lifting hook.

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