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Single cylinder pin-type telescopic arm pin reverse buckling control method and system thereof, and crane

A single-cylinder bolt-type, control method technology, applied to cranes, transportation and packaging, load suspension components, etc., can solve the problems of poor control accuracy of manual undercutting, and achieve the goals of improving safety, precise control methods, and avoiding damage Effect

Active Publication Date: 2016-12-28
XCMG CONSTR MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the embodiment of the present invention is: to solve the problem of poor control precision of manual undercut

Method used

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  • Single cylinder pin-type telescopic arm pin reverse buckling control method and system thereof, and crane
  • Single cylinder pin-type telescopic arm pin reverse buckling control method and system thereof, and crane
  • Single cylinder pin-type telescopic arm pin reverse buckling control method and system thereof, and crane

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Embodiment Construction

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0028] The relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.

[0029] At the same time, it should be understood that, for the convenience of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship.

[0030] Techniques, methods and devic...

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Abstract

The invention discloses a single cylinder pin-type telescopic arm pin reverse buckling control method and a system thereof, and a crane. The method is characterized in that a telescopic arm arrives at a corresponding telescoping position, then a control arm pin is inserted into a corresponding arm pinhole; the retraction of the telescopic arm is controlled by controlling a hydraulic system; after pre-setting a period of time, whether the monitored pump pressure of the hydraulic system reaches the pump pressure threshold of the arm pin at the bottom of the arm pinhole or not is determined; if the monitored pump pressure of the hydraulic system reaches the pump pressure threshold, the arm pin moves to the bottom of the arm pinhole, and the telescopic arm is controlled for stopping retraction. The telescopic arm pin reverse buckling control method is more accurate, avoid damage on a telescoping oil cylinder and the arm pin by artificial arm pin reverse buckling, and increases the telescoping security of the telescopic arm.

Description

technical field [0001] The invention relates to the technical field of engineering machinery, in particular to a control method and system for pin undercutting of a single-cylinder bolt-type telescopic boom, and a crane. Background technique [0002] Figure 10 It is a schematic diagram of the structure of the existing single-cylinder plug-type telescopic arm, which includes the basic arm 1001, the oil cylinder 1002, the bottom of the arm pin hole 1003, the gap 1004 between the arm pin and the arm pin hole, the arm pin 1005, the cylinder pin 1006, the second 2-section arm 1007. [0003] Such as Figure 10 As shown, after a certain section of the arm completes the set working condition and inserts the arm pin 1005, there is a large gap 1004 between the arm pin hole and the arm pin due to the large design of the arm pin hole. If no measures are taken to eliminate the gap, during the lifting process, the telescopic arm will suddenly retract under the action of the hanging obje...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66C13/18B66C23/687
Inventor 姚亚敏邵杏国赵文祥
Owner XCMG CONSTR MACHINERY
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