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Adjustable counterweight

A kind of balance weight, adjustable technology, applied in the field of balance weight, can solve the problems of fixed, operation performance limitation, non-adjustment, etc., to achieve uniform wear, prolong service life, and save materials.

Inactive Publication Date: 2014-11-26
NANJING LEKTEC ENG DATA TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing construction machinery products are equipped with counterweights according to different machine weight levels, and their installation positions are fixed, that is, they cannot be adjusted.
In this way, it will limit the full performance of the whole machine within its operating range.

Method used

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Examples

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Embodiment Construction

[0015] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention.

[0016] according to figure 1 with image 3 , an adjustable counterweight provided by the present invention is installed on an excavator, including a counterweight 2, a hydraulic cylinder 3, and a control valve 4. A sliding guide rail 1 is arranged symmetrically under the counterweight 2, and the counterweight 2 can slide along the sliding guide rail 1. The balance weight 2 is driven to slide by two symmetrically arranged hydraulic cylinders 3 , the hydraulic cylinders 3 are connected to the control valve 4 , and the expansion and contraction of the hydraulic cylinder 3 is adjusted through the control valve 4 .

[0017] Working principle: The effective play of the digging force of the backhoe excavator is limited by six conditions, namely Ⅰ. Forward tilt; Ⅱ. Backward tilt; Ⅲ. ...

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Abstract

The invention discloses an adjustable counterweight. The adjustable counterweight comprises a counterweight body, two hydraulic oil cylinders and a control valve. A sliding guide rail is arranged below the counterweight body. The counterweight body can slide along the sliding guide rail. The counterweight body is driven by the two hydraulic oil cylinders which are symmetrically arranged to slide. The hydraulic oil cylinders are connected with the control valve. Stretching and retracting of each oil cylinder are adjusted through the control valve. The adjustable counterweight can move within a certain range; within the working range, a whole machine cannot incline frontwards or backwards, and the work performance of the whole machine can be brought into full play.

Description

technical field [0001] The invention relates to a balance weight, in particular to an adjustable balance weight. Background technique [0002] All construction machinery products are within the scope of their work, in order to meet specific work requirements, it is often necessary to use a balance weight (or counterweight) in the structure of the whole machine to ensure the stability of the whole machine. However, the existing construction machinery products are equipped with counterweights according to different machine weight grades, and their installation positions are fixed, that is, they cannot be adjusted. In this way, the complete machine can fully exert its operating performance within its operating range and play a restrictive role. For example: for lifting equipment, within the range of its maximum lifting range and maximum lifting height, the lifting weight is limited by the lifting range; for excavating equipment, within the scope of its excavation envelope, the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F15/28
Inventor 王爽华颖群韩荷明
Owner NANJING LEKTEC ENG DATA TECH
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