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13704results about "Load-engaging elements" patented technology

Horizontal hoisting device for high-power engine assemblies and operation method of horizontal hoisting device

Provided are a horizontal hoisting device for high-power engine assemblies and an operation method of the horizontal hoisting device. The horizontal hoisting device comprises a main hoisting beam, auxiliary hoisting beams, a hoisting hook and a gravity center adjusting plate, wherein the main hoisting beam is arranged in the middle of the hoisting device, and the gravity center adjusting plate is positioned on the main hoisting beam; the auxiliary hoisting beams are fixed to the top of the gravity center adjusting plate, and connected with the gravity center adjusting plate through bolts; the gravity center adjusting plate is arranged at the middles of the bottoms of the auxiliary hoisting beams; and the hoisting hook is installed at the top of the gravity center adjusting plate and located between the two auxiliary hoisting beams. By means of the horizontal hoisting device for the high-power engine assemblies and the operation method of the horizontal hoisting device, the hoisting point can be adjusted quickly according to the different gravity centers of engines, the engines can be hoisted horizontally, and the novel hoisting device can quickly confirm the gravity centers and the hoisting points of the high-power engine assemblies of different gravity centers and can also adjust the high-power engine assemblies to be horizontal at a time, thereby improving the hoisting efficiency.

Two-freedom-degree regulation self-leveling spreader and regulation method

ActiveCN101891109AOvercoming operational riskOvercoming operational securityLoad-engaging elementsAutomatic controlMotor drive
The invention relates to a two-freedom-degree regulation self-leveling spreader and a regulation method. In the automatic spreader, an inclination sensor judges a current level degree and a motor drives a main lifting sliding block to move in a horizontal plane, so that the posture of a lifted object is regulated. The spreader uses a wireless handheld device to control the spreader; a manual control mode and an automatic control mode are provided; and an operator can selectively use the control modes according to actual lifting conditions. When the posture regulation operation is finished, the spreader can automatically measure and calculate the weight and the position of a mass center of the lifted object and display the information and the current state information of the spreader on the handheld device. The spreader is mainly applied to the lifting operation requiring precise vertical butt joint in the process of assembling large equipment and has the advantages of avoiding repeated regulation and lifting caused by unclear mass center and dissatisfactory posture of the lifted object after the object is lifted, reducing the potential safety hazard caused by complicated operation processes and simultaneously improving the lifting operation efficiency.

Pneumatically actuated magnetic workpiece holder

A pneumatically actuated magnetic workpiece holder comprising a housing having a contact surface for contacting a workpiece to be held, and a magnet assembly translationally disposed in the housing, the magnet assembly comprising a plurality of permanent magnets arranged so that adjacent magnets are of opposite polarities. The housing is adapted for fluid communication with a pneumatic supply. The magnet assembly is biased towards an operative position, according to which the magnet assembly is sufficiently near the contact surface to exert on a workpiece an attractive force sufficient for holding the workpiece in contact with the workpiece holder, and is translationally positionable by pneumatic pressure towards an inoperative position, according to which the magnet assembly is sufficiently distant from the contact surface so as to be unable to exert on the workpiece an attractive force sufficient for holding the workpiece in contact with the workpiece holder. The invention is adapted for replacing suction-cup workpiece holders in conventional vacuum lifting devices, and a method of utilizing the present invention in this fashion is taught to comprise providing the workpiece holder with a coupling complimentary to the coupling for such conventional suction-cup workpiece holders, so that the magnetic workpiece holder may be substituted for the conventional suction-cup holder in the vacuum lifting device. According to this method, the vacuum supply of the conventional vacuum lifting device is adapted to provide such positive air pressure for employing the magnetic workpiece holder of this invention.
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