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Force feedback type anti-falling system

A technology of force feedback and anti-falling, which is applied in the direction of load hanging components, elevators, safety devices, etc., can solve the problems of low anti-falling success rate and slow anti-falling response, and achieve the effect of fast response and direct transmission

Inactive Publication Date: 2019-01-08
HUNAN SANY KUAIERJU RESIDENTIAL IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Fourth, the anti-fall technology is mainly based on speed detection. The anti-fall mechanism can only work when the speed reaches the preset value. The anti-fall response is slow and the success rate of anti-fall is reduced.

Method used

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  • Force feedback type anti-falling system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] The anti-fall system provided by Embodiment 1 also includes a reset mechanism 5 connected between the actuator 2 and the load mechanism 3; the restoring force of the reset mechanism 5 corresponds to the pulling force of the lifting mechanism 1, when the pulling force of the lifting mechanism 1 is greater than or equal to the reset When the restoring force of the mechanism 4, the lifting mechanism 1 drives the actuator 2 to move relative to the body 31 in the load mechanism 3 and away from the longitudinal track 5; when the pulling force of the lifting mechanism 1 is smaller than the restoring force of the reset mechanism 4, the reset mechanism 4 drives the actuator 2 moves relative to the body 31 in the loading mechanism 3 and approaches the longitudinal rail 5.

[0063] In the first embodiment provided in Example 1, the actuator 2 includes a hinge 21 hinged to the body 31 of the load mechanism 3; the lifting mechanism 1 is directly or indirectly connected to the hinge 2...

Embodiment 2

[0078] The anti-falling system provided by Embodiment 2 also includes a load cell 6 connected between the lifting mechanism 1 and the load mechanism 3; 3 The variation of the applied tension brakes or relaxes the load mechanism 3 . In this way, the actuator 2 is indirectly connected between the lifting mechanism 1 and the loading mechanism 3 , and is used to brake or release the loading mechanism 3 indirectly according to the change of the tension applied by the lifting mechanism 1 to the loading mechanism 3 .

[0079]In this embodiment, the actuator 2 includes an electromagnet 27 and an actuator 28 connected to the electromagnet 27; the electromagnet 27 is electrically connected to the load cell 6, and the actuator 28 is flexibly connected to the body 31 of the load mechanism 3; When the pulling force obtained by the load cell 6 is greater than or equal to the preset value, the electromagnet 27 loses power and moves along the horizontal direction of the body 31 to drive the a...

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Abstract

The invention provides a force feedback type anti-falling system which comprises a lifting mechanism, an executing mechanism, a loading mechanism, and a longitudinal track. The loading mechanism is arranged on the longitudinal track, the lifting mechanism is connected with the loading mechanism and can drive the loading mechanism to move along the longitudinal track, the executing mechanism is connected between the lifting mechanism and the loading mechanism, and used for braking or loosening the loading mechanism according to the change of pulling force exerted by the lifting mechanism to theloading mechanism to make the loading mechanism stay at the set height of the longitudinal track or move along the longitudinal track.

Description

technical field [0001] The invention relates to the field of lifting machinery, in particular to a force feedback type anti-drop system. Background technique [0002] In lifting equipment such as elevators, elevators, and special cranes, once the power system, hoisting system, braking system or control system fail, the car or the heavy object may fall, which may cause personal injury and property damage in severe cases. [0003] At present, the anti-falling technology is mainly based on speed detection, which is called the speed feedback anti-falling system. Its detection principle is: once the car or the lifting object falls, the speed will exceed the preset value. Speed ​​limit, or activate the safety gear through the speed limiter, so that the safety gear clamps the track for braking. [0004] The existing speed feedback anti-falling system has the following technical defects: [0005] First, for multi-point lifting equipment, the speed of each lifting point is differen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66B5/20B66B5/22B66C15/00
CPCB66B5/20B66B5/22B66C15/00
Inventor 贾海云
Owner HUNAN SANY KUAIERJU RESIDENTIAL IND CO LTD
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