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Solenoid valve for swing arm oil cylinder of excavator

A solenoid valve and motor arm technology, applied in the field of solenoid valves, can solve problems such as potential safety hazards, accidents, and boom drop.

Active Publication Date: 2018-11-20
阿迪诺德机械(江苏)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the bucket is full of materials or the hook on the bucket is used to lift heavy objects, the automatic lowering of the working device often leads to accidents
At the same time, when the oil pipe bursts, the boom will suddenly drop, which poses a safety hazard

Method used

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  • Solenoid valve for swing arm oil cylinder of excavator
  • Solenoid valve for swing arm oil cylinder of excavator

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Experimental program
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Effect test

Embodiment Construction

[0018] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0019] A solenoid valve for an excavator boom cylinder according to an embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

[0020] Such as Figure 1 to Figure 2 As shown, the electromagnetic valve for the excavator arm cylinder according to the embodiment of the present invention includes: valve seat 1, valve sleeve 3, main valve core 2, first spring 4, valve body 5, two-position two-way pilot solenoid valve 6.

[0021] Specifically, the valve seat 1 has a valve se...

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PUM

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Abstract

The invention discloses a solenoid valve for a swing arm oil cylinder of an excavator. The solenoid valve comprises a valve seat, a valve sleeve, a main valve core, a first spring, a valve body and atwo-bit three-way electromagnetic stop valve. The solenoid valve for the swing arm oil cylinder of the excavator disclosed by the embodiment of the invention has the advantages of reasonable structure, compact volume and low manufacturing cost; and moreover, the swing arm oil cylinder can be reliably locked so as not to be slid down, and decline of the swing arm oil cylinder is avoided even if oilpipes of the swing arm oil cylinder is burst.

Description

technical field [0001] The invention relates to a solenoid valve, in particular to a solenoid valve used for an excavator arm oil cylinder. Background technique [0002] For conventional hydraulic excavators, the boom hydraulic cylinder is directly connected to the boom control valve, and the boom control valve is used to control the rise, fall and maintenance of the boom. After the hydraulic excavator lifts the bucket off the ground, the reversing valve of the boom or stick hydraulic cylinder may be temporarily returned to the neutral position due to various reasons, and the engine is in the idle state at this time. At this time, if the valve of the reversing valve If the gap between the core and the valve body is too large, there will be leakage. Even if the hydraulic cylinder has no internal leakage, the working device will automatically descend under its own weight. When the bucket is full of materials or the hook on the bucket is used to lift heavy objects, the automat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B13/02
CPCF15B13/02
Inventor 不公告发明人
Owner 阿迪诺德机械(江苏)有限公司