Inner double circulation runner type stretchable pitch sprinkling device

A technology of spraying device and runner type is applied in the field of internal double-circulation runner type retractable asphalt spraying device. , the effect of improving work efficiency
CN102644227BActive Publication Date: 2014-09-24ZHEJIANG MEITONG ROAD CONSTR MACHINERY
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
ZHEJIANG MEITONG ROAD CONSTR MACHINERY
Publication Date
2014-09-24

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Abstract

A retractable asphalt spraying device with internal double circulation channel, which is mainly composed of a support frame, a fixed spray rod assembly, a left telescopic spray rod assembly and a right telescopic spray rod assembly of the same structure, and an asphalt spray valve. The assembly is installed on the support frame; the left telescopic spraying boom assembly and the right telescopic spraying boom assembly respectively include a first-stage asphalt pipe, a secondary asphalt pipe, a rotary joint, a side spray pipe and an asphalt spray valve; the first-stage asphalt The pipeline, the secondary asphalt pipeline, and the side spray pipe are divided into an oil inlet passage and an oil return passage by a partition, and a flow inner pipe with a small diameter is arranged in the rotary joint. The hydraulic motor on the support frame drives the transmission gear, and drives the transmission rack fixed on the left telescopic spray rod assembly and the right telescopic spray rod assembly to make a linear motion, so as to realize the unfolding and closing of the left telescopic spray rod assembly and the right telescopic spray rod assembly. Retracted; it can realize asphalt circulation without external pipes, with large spreading width and simple structure.
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Description

technical field

[0001] The present invention relates to a retractable asphalt spraying device with internal double-circulation channels, specifically road binder spraying machines such as asphalt spraying vehicles, synchronous gravel sealing vehicles and ultra-thin wearing layer paver, etc. A retractable asphalt spraying device with internal double-circulation channels used in the utility model belongs to asphalt pavement construction and maintenance equipment. Background technique

[0002] In the field of asphalt pavement construction and maintenance equipment, asphalt spraying vehicles, synchronous crushed stone sealing vehicles and ultra-thin wear layer paver, the asphalt spraying device in use is generally a manual rotary folding type, which is fixed on the rear of the vehicle by a It is composed of the main spraying rod and two rotatable auxiliary spraying rods. The main spraying rod and the auxiliary spraying rod are connected by a rotary joint to realize the coaxial t...

Claims

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