Energy-saving road asphalt crack pouring machine

Abstract

The invention discloses an energy-saving road asphalt crack pouring machine, which belongs to a road construction facility. The energy-saving road asphalt crack pouring machine comprises a rack, an asphalt melting box, a liquefied gas tank carrying box, a liquefied gas burning mechanism, a molten asphalt lead-out box, a crack pouring mechanism, an asphalt stirring mechanism, a rack forward guide mechanism and a control mechanism, wherein the asphalt melting box is arranged at one end of the rack; the liquefied gas tank carrying box is arranged at the other end of the rack; the liquefied gas burning mechanism is arranged in a liquefied gas burning mechanism cavity; the molten asphalt lead-out box is arranged on the lower part of the asphalt melting box; the crack pouring mechanism is arranged on the molten asphalt lead-out box; the asphalt stirring mechanism is arranged on a box cover; the rack forward guide mechanism is arranged on the rack; the control mechanism is arranged on one side of the asphalt melting box and the liquefied gas tank carrying box; the outer wall of the asphalt melting box is provided with an expansion gas absorbing mechanism, and the box wall is provided with a molten asphalt lead-in port; the bottom of the box cavity of the molten asphalt lead-out box is provided with a crack pouring pipe hole, and the upper part of the box cavity is provided with a molten asphalt lead-out box cover; and the crack pouring mechanism comprises a motor, an asphalt pump, a guide column, a rubbing board rack, an enclosing baffle frame, a scraping plate and a crack pouring pipe. The energy-saving road asphalt crack pouring machine has the advantages of good energy saving effect, capability of forwardly and quickly advancing, short heating time, capabilities of guaranteeing safety and avoiding blockage and good operability effect.

Description

technical field [0001] The invention belongs to the technical field of road construction facilities, and in particular relates to an energy-saving road asphalt filling machine. Background technique [0002] Previously, the road construction and municipal facility maintenance departments usually filled the cracks on the asphalt pavement and the expansion joints reserved on the cement pavement by hand pouring. Undoubtedly, this operation method has low work efficiency and labor-intensive labor. The strength and the quality of joint filling vary with the experience and sense of responsibility of the constructors and waste materials, and the mechanical asphalt joint filling machine can basically make up for these deficiencies. [0003] In the published Chinese patent documents, various technical information about asphalt joint filling machines can be seen, such as the "friction type asphalt pavement joint filling machine" recommended by document A), the authorized announcement n...

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned document A) can make up for the shortcomings of the original operation method, and has the technical effect described in the 5-8 line on page 2 of the manual, but there are the following Deficiencies: First, because it heats the asphalt in the asphalt tank by the high-temperature hot air discharged from the exhaust pipe of the gasoline engine when the gasoline engine is working, so the energy consumption is large and energy saving is lost; second, because of the single function, it is difficult to adapt to different In the case of joint filling on the pavement, for example, the structure shown in this patent scheme moves backwards when filling the joints, that is, the traveling wheels move in a backward manner, which is suitable for the slow walking required for the joint filling of asphalt pavement cracks, but for The expansion joints reserved on the cement pavement usually require the traveling wheels to travel forward to meet the speed requirement, otherwise the asphalt will spread to the surfaces on both sides of the expansion joint, causing waste and affecting the view of the cement pavement

In addition, according to common knowledge, since the expansion joints on the cement pavement are relatively narrow, if the road wheels travel in reverse, it is often difficult to make the asphalt outlet end of the asphalt conduit correspond to the expansion joints, because the road wheels travel backwards, and the operator must Backwards, and only when the operator walks forward can the corresponding effect between the asphalt outlet end of the asphalt conduit and the expansion joint be effectively guaranteed; thirdly, because asphalt usually needs to show good flow at a temperature of about 160°C However, it can be seen from the patent scheme that asphalt needs to meet this condition, which requires a lengthy process, thus prolonging the standby time, which consumes a lot of energy on the one hand, and affects work efficiency on the other hand; Fourth, due to the need to use gasoline engines and matching Gearbox, so the cost of the whole machine is high, and the investment and maintenance costs of the user department are large

[0005] The above document B) has achievements in asphalt flow control, and is significantly different from document A) in structure, but there are also the four points mentioned in document A). , In addition, the screw pump is easily blocked by high-viscosity asphalt

[0006] The above document C) is significantly simpler in structure compared to documents A) and B), and can objectively reflect the advantages mentioned in paragraph 0008 of the specification, but in addition to still exist In addition to the deficiencies two and three of the aforementioned documents A) and B), there are also the following deficiencies: one is the lack of safety. The heat transfer oil in the heat transfer oil chamber will generate oil vapor (that is, customarily called expansion gas) at high temperature and expand , if it cannot be effectively resolved, there is a risk of explosion; the second is that the liquid asphalt in the asphalt melting chamber enters the discharge chamber through the filter screen, and the liquid asphalt entering the discharge chamber needs to be set in the discharge chamber. The filter screen at the discharge port of the cavity enters the nozzle and sprays into the gap under the action of the motor, reducer and pump, so it is easy to block the filter screen, and maintenance and replacement are troublesome; third, because the asphalt is completely in a static state and heated, Therefore, the long heating process is not conducive to saving energy

[0007]In addition, as a joint filling machine, the joint filling mechanism is undoubtedly an extremely important mechanism. Impact

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