Balance-weight-adjustable cantilever type rotary crane

An adjustable, cantilever-type technology, applied to cranes and other directions, can solve problems such as overturning, difficulty in ensuring the stability of the whole machine, and large volume, and achieve the effect of reducing mechanical wear

Inactive Publication Date: 2017-08-04
李瑞平
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, large-scale port cranes, such as quayside cranes and portal cranes, are getting taller and bigger, and their volume is getting bigger and bigger. In stormy conditions, it is difficult to guarant...

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  • Balance-weight-adjustable cantilever type rotary crane
  • Balance-weight-adjustable cantilever type rotary crane
  • Balance-weight-adjustable cantilever type rotary crane

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Embodiment Construction

[0019] 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 of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0020] see Figure 1~3 , in an embodiment of the present invention, a cantilever rotary crane with adjustable counterweight, including a PLC controller 2, a base 3, a rotating mechanism 5, a motor 8, a column 10, a counterweight 11, a first hydraulic cylinder 15, and a main beam 20 and the second hydraulic cylinder 28, the column 10 is connected with the base 3 through the rotating mechanism 5, the rotating body 51 of the rotating mechanism 5 is ...

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PUM

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Abstract

The invention discloses a cantilever type rotating crane with adjustable counterweight, which comprises a base, a rotating mechanism, a column, a counterweight and a main beam. The column is connected to the base through a rotating mechanism, and the upper part of the column is rotated by a rotating shaft to be provided with a main beam. , the left side of the column is provided with an adjustment groove on the main beam, and a roller shaft is arranged in the adjustment groove, and rollers are installed on the front and rear ends of the roller shaft. The groove is located on the lower side of the main beam and there is a rope moving groove. The right side of the adjustment groove is installed in the main beam with the first hydraulic cylinder connected with the roller shaft. The lower right side of the main beam is provided with a driving device and a guide rail. An electric hoist is installed at the lower end of the driving device, the lower part of the electric hoist is connected with a hook, and the upper right side of the column is also provided with a second hydraulic cylinder for adjusting the angle of the main beam. The invention can lift objects in all directions, is stable and reliable, is convenient to adjust, and has improved service life.

Description

technical field [0001] The invention relates to the technical field of cranes, in particular to a cantilever rotary crane with adjustable counterweight. Background technique [0002] A crane refers to a multi-action hoisting machine that vertically lifts and horizontally transports heavy objects within a certain range, also known as a crane. The stability of cranes, especially large port cranes in non-working conditions cannot be ignored. At present, large-scale port cranes, such as quayside cranes and portal cranes, are getting taller and bigger, and their volume is getting bigger and bigger. In stormy conditions, it is difficult to guarantee the stability of the whole machine, and there is a danger of overturning. In addition, in stormy conditions, the wheel pressure on the leeward side of the crane can easily exceed the allowable value of the wharf. Therefore, a better windproof device is required on the side of the crane to improve the stability of the crane under stor...

Claims

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Application Information

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IPC IPC(8): B66C23/76B66C23/62B66C23/84B66C23/16B66C23/06
CPCB66C23/76B66C23/06B66C23/163B66C23/62B66C23/84
Inventor 不公告发明人
Owner 李瑞平
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