Heavy load balance mechanism

A technology of balancing mechanism and heavy load, applied in cranes, manipulators, mechanically driven excavators/dredgers, etc., can solve the problems of small balancing torque, complex assembly, small preload force, etc., to meet the requirements of large swing and simplify Assembly, the effect of improving the service life

Inactive Publication Date: 2010-05-26
SHANGHAI BYD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The common problems of this kind of balance mechanism are that the balance moment is small, the pre-tightening force is small, and the assembly is complicated, which limits the product's use in the field of heavy-duty boom balance.

Method used

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  • Heavy load balance mechanism
  • Heavy load balance mechanism

Examples

Experimental program
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Embodiment Construction

[0016] see figure 1 , an embodiment of the present invention, the heavy load balance mechanism includes a telescopic shaft assembly, a fixed shaft assembly, a compression spring, a fixed assembly, a guide assembly and a preload assembly, and the fixed assembly is passed through screws (including the first screw 8 and the second screw 3 ) connect the fixed shaft and the guide assembly, and the compression spring connects the guide assembly and the telescopic shaft assembly.

[0017] The telescopic shaft assembly includes a telescopic shaft 1, a first bearing 26, a first rotating shaft 25, a first large retaining ring 24, a first small retaining ring 27, a grease nipple 2, an extruding spring 7, a slider 6 and an oil plug 17, The slide block 6 is packed into the grease storage area in the middle of the telescopic shaft 1 to seal the storage area. The telescopic shaft 1 is also provided with an oil passage leading to the reciprocating bearing 22, and then the extrusion spring 7 i...

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PUM

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Abstract

The invention which discloses a heavy load balance mechanism comprises a telescopic axle component, a fixation axle component, a compression elastic device, a fixation component and a guiding component, wherein the fixation component connects the fixation axle and the guiding component fixedly through a connector, and a compression spring is connected with the guiding component and the telescopicaxle component. Adopting the balance method that the balance force acts on an equipment rotation arm directly, and the invention can be used for balancing the overturning moment produced by the deadweight of the rotation arm and the acting force of the connecting component together to lead a rotation driving device only need to overcome the inertia moment and a plurality of overturning moment to lower the motor load and increase the structural controllability, for instance, excavators, cranes, transportation manipulators, etc. the invention has the advantages of great trimming moment, goodbalance effect, simple structure, convenient assembly, positive stop of motion and self-lubrication, etc.

Description

technical field [0001] The invention belongs to the field of hoisting equipment and relates to a heavy load balance mechanism. Background technique [0002] In general, the rotating arms of excavators, cranes, handling manipulators and other equipment are affected by the weight, load and inertia of the arm body, and have high requirements on the load and driving time indicators of the drive device, so it is usually on the basis of optimizing the inertia of the arm body structure On the other hand, the balance mechanism is used to balance the moment of operating the rotating arm, so as to facilitate the selection of a driving device with a small size and low power consumption, so that the rotating arm driving device only needs to overcome the moment of inertia and a small amount of overturning moment, and reduce the load on the motor. Some scientific research institutes at home and abroad have carried out the making of balancing mechanism, as disclosed in the Chinese patent w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66C23/88E02F3/16B25J19/00
Inventor 罗忠良杨秋明
Owner SHANGHAI BYD
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