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Self-loading and unloading method of rear counterweight of main engine of crawler crane

A crawler crane and rear counterweight technology, which is applied to cranes, cargo handling equipment, ship accessories, etc., can solve the problems of high manufacturing cost, complex structure, and high installation requirements of hydraulic cylinder 2, and achieve the effect of low cost and convenient operation.

Inactive Publication Date: 2012-02-15
ZHEJIANG SANY EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Although the above method can realize the self-assembly or disassembly of the rear counterweight 3, the above method must rely on the hydraulic cylinder 2 to assemble or disassemble the rear counterweight 3. This method has high requirements for the installation of the hydraulic cylinder 2 and has a complicated structure. high manufacturing cost

Method used

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  • Self-loading and unloading method of rear counterweight of main engine of crawler crane
  • Self-loading and unloading method of rear counterweight of main engine of crawler crane
  • Self-loading and unloading method of rear counterweight of main engine of crawler crane

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Embodiment Construction

[0021] The structural features of the present invention will be further described below in conjunction with the accompanying drawings.

[0022] Such as Figure 4 to Figure 6 As shown, the self-loading and unloading method of the rear counterweight of the crawler crane of the present invention comprises the following steps:

[0023] a. The main luffing mast 4 of the crawler crane is arranged so that the main luffing mast 4 and the main platform 1 form an acute angle; The specific method is: pull up the telescopic piston rod of the oil cylinder 5 to increase or decrease the inclination angle between the main luffing mast 4 and the main platform 1 to support the main luffing mast 4 .

[0024] b. Use the platform pulley block connected to the mast pulley block 6 to lift the rear counterweight 3, and hang the rear counterweight 3 on or hang from the rear counterweight lug 11 of the main platform 1.

[0025] In this step, the platform pulley block 7 on the main platform 1 mainly f...

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Abstract

The invention discloses a method for self-loading and unloading the rear counterweight of a main engine of a crawler crane. The method includes the following steps: a. The main luffing mast of the crawler crane is arranged so that the main luffing mast and the main platform form an acute angle; b. Using a detachable platform The pulley block lifts the rear counterweight and hangs the rear counterweight on or from the rear counterweight lugs of the main platform. The present invention provides the supporting point through the main luffing mast, and uses the detachable platform pulley block to hang the rear counterweight on or hoist it from the rear counterweight lifting lug, without the need for a hydraulic oil cylinder, low cost and convenient operation.

Description

technical field [0001] The invention relates to a crawler crane, in particular to a method for self-loading and unloading the rear counterweight of the main engine of the crawler crane. The method automatically hangs the rear counterweight on the rear counterweight lug of the main platform. Background technique [0002] Such as Figure 1 to Figure 3 As shown, the self-loading and unloading method of the rear counterweight of the main engine of the crawler crane is mainly to install the hydraulic cylinder 2 at the tail of the main platform 1 of the crawler crane. When the rear counterweight 3 is assembled, the counterweight 31 of the rear counterweight 3 is placed on the rear counterweight 3 on the counterweight pallet 32 ​​of the main platform 1; When the weight is 3, use the hydraulic cylinder 2 to hang the rear counterweight pallet 32 ​​from the rear counterweight lifting lug. [0003] Although the above method can realize the self-assembly or disassembly of the rear coun...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66C23/60B66C23/76
Inventor 许明飞姜春华王爱亭
Owner ZHEJIANG SANY EQUIP
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