Hydraulic control pressure difference spray marking device of plunger pump type normal temperature marking machine

Abstract

The invention provides a hydraulic control pressure difference spray marking device of a plunger pump type normal temperature marking machine, which comprises a hydraulic control pressure difference system; a glass bead spray gun, a curing agent spray gun and a high pressure spray gun are arranged on the plunger pump type normal temperature marking machine; the hydraulic control pressure difference system is connected with the high pressure spray gun; the high pressure spray gun is arranged on a stand of the plunger pump type normal temperature marking machine through mounting a gun rack; the hydraulic control pressure difference system comprises a hydraulic pump, a high pressure plunger pump, an automatic reciprocating cylinder, a hydraulic oil tank and an energy accumulator which are arranged on the stand of the plunger pump type normal temperature marking machine; an engine is connected with the hydraulic pump in a transmission mode; an inlet of the hydraulic pump is connected with the hydraulic oil tank through an oil pipe; an outlet of the hydraulic pump is connected with the automatic reciprocating cylinder through the oil pipe; the automatic reciprocating cylinder and the high pressure plunger pump are vertically arranged; and the automatic reciprocating cylinder is positioned right above the high pressure plunger pump. The device provided by the invention is simple in structure, long in working life, low in equipment failure rate, high in construction efficiency and convenient to operate and turn, and the control system can not be easily affected by equipment vibration and outside signals.

Description

technical field [0001] The invention belongs to the field of highway auxiliary equipment, and in particular relates to a hydraulic control pressure difference spraying marking device of a plunger pump type room temperature marking machine. Background technique [0002] The traditional hand-push marking machine at room temperature adopts diaphragm pump type and plunger pump type. The working principle of diaphragm pump determines its short working life and high failure rate; Electronic control must be used. At this time, electric control components such as motors, batteries, and controllers need to be added to the overall equipment, so that the weight of the entire hand-push equipment will increase, which is not conducive to use. Moreover, this electronic control method is affected by equipment vibration and external signals. Influence, the control system is prone to problems, which seriously affects the efficiency of marking construction; therefore, most of the domestic mark...

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Problems solved by technology

[0002] The traditional hand-push marking machine at room temperature adopts diaphragm pump type and plunger pump type. The working principle of diaphragm pump determines its short working life and high failure rate; Electronic control must be used. At this time, electric control components such as motors, batteries, and controllers need to be added to the overall equipment, so that the weight of the entire hand-push equipment will increase, which is not conducive to use. Moreover, this electronic control method is affected by equipment vibration and external signals. Influence, the control system is prone to problems, which seriously affects the efficiency of marking construction; therefore, most of the domestic marking industry adopts the diaphragm pump type that has been eliminated abroad; the traditional marking machine uses electromagnetic induction to control the reciprocating motion of the hydraulic cylinder, which will be subject to equipment vibration Due to the influence of external signals, the frequency of problems in the control system is high, so the marking construction efficiency is low; the linear control of the traditional hand-push room temperature marking machine is manually controlled. If the rotary encoder is used, it is necessary to add complicated equipment to the equipment Gear mechanism, such equipment is not only complicated but also requires very high quality of the operator, and the failure rate is high; in view of the above problems, how to improve the existing normal temperature hand-push marking machine has become a technical problem that needs to be solved urgently

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