阅读说明：本技术 沥青道路施工的切缝装置及切缝方法 (Joint cutting device and joint cutting method for asphalt road construction ) 是由 刘宗乾 朱立雷 杜学杨 周佳伟 于 2021-08-31 设计创作，主要内容包括：本发明涉及道路施工领域,尤其是一种沥青道路施工的切缝装置及切缝方法,包括刀头,还包括固定板和支撑杆,固定板与压路机后轮连接,支撑杆与固定板活动连接,支撑杆的底部设置有刀头。本发明结构简单,能够对压路机边施工边切割,而且切割效果好,有助有提高施工缝的施工质量。(The invention relates to the field of road construction, in particular to a joint cutting device and a joint cutting method for asphalt road construction. The cutting device is simple in structure, can cut the construction of the road roller, has a good cutting effect, and is beneficial to improving the construction quality of construction joints.)

1. The utility model provides a joint-cutting device of bituminous paving construction, includes the tool bit, its characterized in that: the road roller is characterized by further comprising a fixing plate and a supporting rod, the fixing plate is connected with a rear wheel of the road roller, the supporting rod is movably connected with the fixing plate, and a cutter head is arranged at the bottom of the supporting rod.

2. The slitting device for asphalt road construction according to claim 1, wherein: the two fixing plates are arranged, the supporting rod is arranged between the two fixing plates and is movably connected with the two fixing plates respectively, and a baffle is arranged on one side of the supporting rod and is connected with the two fixing plates respectively; the fixing plate far away from the rear wheel of the road roller is connected with the supporting rod through a spring I.

3. The slitting device for asphalt road construction according to claim 1, wherein: the support rod comprises an upper support rod section and a lower support rod section, and the upper support rod section is connected with the lower support rod section through a second spring.

4. The slitting device for asphalt road construction according to claim 3, wherein: and a positioning cylinder is arranged on the outer side of the second spring, and the top of the positioning cylinder is connected with the bottom of the upper section of the supporting rod.

5. The slitting device for asphalt road construction according to claim 1, wherein: the whole cutter head is wedge-shaped, one end of the cutter head is a cutting part, and the other end of the cutter head is connected with the supporting rod as a fixed end.

6. A method of cutting the asphalt road according to any one of claims 1 to 5, wherein the method comprises the steps of:

the method comprises the following steps: after the asphalt concrete is paved, rolling construction is carried out immediately, and the steps of initial pressing, re-pressing and final pressing are carried out continuously:

step two: after the final pressing is basically finished and the last rolling is carried out on the residual longitudinal construction, the device is put down from the rear wheel of the road roller, the position of the cutter block is adjusted, and the bottom of the cutter block is ensured to be attached to the base course of the road surface;

step three: starting the road roller provided with the joint cutting device, adjusting the advancing direction and the angle, and preparing for rolling:

step four: after all conditions are prepared, rolling the asphalt concrete longitudinally towards the construction joint is started;

step five: after rolling, constructors clean the cut asphalt concrete to complete joint cutting work.

Technical Field

The invention relates to the field of road construction, in particular to a joint cutting device and a joint cutting method for asphalt road construction.

Background

In the construction of daily municipal roads, the paving of asphalt concrete can generate longitudinal construction joints at the center line of the road surface. Generally, the construction joints are cut by a manual hand-push cutter after the asphalt concrete is cooled. However, manual lancing has some problems: firstly, construction distance is long, and constructor often runs through all the time in half a road to the cutting of whole regional construction joint of paving, can consume a large amount of activity duration, produces adverse effect to the construction progress. He can also consume a great deal of working energy of constructors, and the arrangement of field personnel is adversely affected; secondly, the cooled asphalt concrete is not easy to cut, the technical requirements on cutting personnel are strict, and the poor technology of the cutting personnel can cause uneven cutting of the construction joints, so that the condition that the joint quality of the cooled asphalt concrete and the second half asphalt concrete is low is caused.

Disclosure of Invention

In order to solve the technical problems, the invention provides a joint cutting device and a joint cutting method for asphalt road construction, the device is simple in structure, can replace a manual cutting link, namely construction, namely cutting, and improves the cutting efficiency.

The invention adopts the following technical scheme:

the utility model provides a joint-cutting device of bituminous paving construction, includes the tool bit, still includes fixed plate and bracing piece, and the fixed plate is connected with the road roller rear wheel, bracing piece and fixed plate swing joint, and the bottom of bracing piece is provided with the tool bit.

Compared with the prior art, the invention has the beneficial effects that:

the cutting machine is simple in structure and easy to manufacture, can be used for cutting along with construction of a road roller, replaces the traditional hand-push joint cutting, improves the working efficiency and reduces the labor intensity; and the construction quality and the construction efficiency can be effectively improved by using machinery.

Further, the invention adopts the following preferable scheme:

the two fixing plates are arranged, the supporting rod is arranged between the two fixing plates and is movably connected with the two fixing plates respectively, and a baffle is arranged on one side of the supporting rod and is connected with the two fixing plates respectively; the fixing plate far away from the rear wheel of the road roller is connected with the supporting rod through a spring I.

The support rod comprises an upper support rod section and a lower support rod section, and the upper support rod section is connected with the lower support rod section through a second spring.

And a positioning cylinder is arranged on the outer side of the second spring, and the top of the positioning cylinder is connected with the bottom of the upper section of the supporting rod.

The whole cutter head is wedge-shaped, one end of the cutter head is a cutting part, and the other end of the cutter head is connected with the supporting rod as a fixed end.

The invention also relates to a joint cutting method for asphalt road construction, which comprises the following steps:

the method comprises the following steps: after the asphalt concrete is paved, rolling construction is carried out immediately, and the steps of initial pressing, re-pressing and final pressing are carried out continuously:

step two: after the final pressing is basically finished and the last rolling is carried out on the residual longitudinal construction, the device is put down from the rear wheel of the road roller, the position of the cutter block is adjusted, and the bottom of the cutter block is ensured to be attached to the base course of the road surface;

step three: starting the road roller provided with the joint cutting device, adjusting the advancing direction and the angle, and preparing for rolling:

step four: after all conditions are prepared, rolling the asphalt concrete longitudinally towards the construction joint is started;

step five: after rolling, constructors clean the cut asphalt concrete to complete joint cutting work.

The method can save a large amount of construction time, and save the original time-consuming and labor-consuming manual cutting link, namely construction, namely cutting; the characteristics of pressure, quality of an advancing route and uniformity of a road surface can be utilized, the quality of longitudinal construction joint construction is ensured, the attractiveness of a road is improved, and the cutting quality is improved; the cutting device is combined with the road roller, so that other hand-push type cutting equipment is prevented from being purchased, and the production cost is reduced.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a side view of FIG. 1;

FIG. 3 is a schematic view of a tool tip;

FIG. 4 is a view showing a state of use of the present apparatus;

in the figure: a fixing plate 1; a support rod 2; a support rod upper section 21; a lower support rod section 22; a cutter head 3; a fixed portion 31; a cutting section 32; a pin shaft 4; a mounting hole 5; a first spring 6; a first fixing pin 7; a second fixing pin 8; a second spring 9; a positioning cylinder 10; a baffle 11.

Detailed Description

The invention is further described below with reference to the accompanying drawings and specific embodiments.

The utility model provides a joint-cutting device of bituminous paving construction, mainly comprises wedge tool bit 3, fixed plate 1 and bracing piece 2, and tool bit 3 is formed by the cutting of rectangular block, and the front end of rectangular block cuts a corner and forms cutting part 32, and the rear end of tool bit is connected with bracing piece 2 as fixed part 31.

The fixed plate 1 is provided with two, and two fixed plates 1 are the triangle-shaped structure respectively, and every fixed plate 1 is provided with a mounting hole 5 respectively near the position of three apex angle, and fixed plate 1 passes through mounting hole 5 and road roller's rear wheel hub bolted connection.

Bracing piece 2 comprises bracing piece upper segment 21 and bracing piece hypomere 22 two parts, the top of bracing piece upper segment 21 is arranged in between two fixed plates 1, the top of two fixed plates 1 and bracing piece upper segment 21 is provided with the round pin shaft hole respectively, bracing piece upper segment 21 is through round pin axle 4 and two fixed plate 1 swing joint, the rear side of bracing piece 2 (the direction that the road roller gos forward is preceding) is provided with a baffle 11, the one end that is close to the road roller rear of a vehicle is arranged in to baffle 11, and baffle 11 is arranged perpendicularly in between two fixed plates 1 and is corresponded the welding with two fixed plates 1 respectively, when bracing piece 2 rotates, baffle 11 plays spacing effect to bracing piece 2. The fixing plate 1 on the outer side of the two fixing plates 1 is provided with a first fixing pin 7, the upper section 21 of the supporting rod is provided with a second fixing pin 8, and the first fixing pin 7 and the second fixing pin 8 are connected through a first spring 6.

Connect through spring two 9 (spring two 9 is compression spring in this implementation) between 21 bottoms on the bracing piece and the bracing piece hypomere 22 top, in order to improve the steadiness that bracing piece upper segment 21 and bracing piece hypomere 22 are connected, the outside cover of spring two 9 is equipped with a location section of thick bamboo 10, the top and the 2 upper ends fixed connection of bracing piece of location section of thick bamboo 10, adjust the interval of 3 bottom surfaces of sword and road surface basic unit through spring two 9, guarantee that 3 bottom surfaces of tool bit and road surface basic unit closely laminate.

The device is fixedly arranged on the rear wheel of the road roller, the cutting part of the tool bit 3 exceeds the position of the head of the road roller, when the road roller normally rolls an asphalt road, the tool bit 3 and the supporting rod 2 are integrally rotated anticlockwise to be in a horizontal state and are folded, and at the moment, the device does not perform joint cutting on the road surface; when the road roller rolls for the last time, the whole supporting rod 2 is clockwise rotated to a vertical state before rolling, and the baffle 11 at the rear side of the supporting rod 2 plays a limiting role in the supporting rod 2, so that the supporting rod 2 is prevented from rotating in the advancing process along with the road roller.

When the device is used for cutting a slot, the thickness of the cutter head 3 can be determined according to the requirement of the thickness of an asphalt road to be cut.

When the device is applied, the following steps are carried out:

the method comprises the following steps: after the asphalt concrete is paved, the device is fixed on a rear wheel hub of the road roller through a fixing plate bolt, and is folded in a counterclockwise rotating mode, rolling construction is carried out immediately, and the process of initial pressing, re-pressing and final pressing is carried out continuously.

Step two: after the final pressure is basically finished and the last rolling of the remaining longitudinal construction is carried out, the device is rotated and placed down clockwise from the rear wheel of the road roller, the position of the cutter block is adjusted, and the bottom of the cutter block is ensured to be attached to the base course of the road surface.

Step three: and starting the road roller provided with the joint cutting device, adjusting the advancing direction and angle, and preparing for rolling.

Step four: after all conditions are prepared, rolling work of asphalt concrete longitudinally towards the construction joints is started.

Step five: after rolling, constructors clean the cut asphalt concrete to complete joint cutting work.

The method can save a large amount of construction time, saves the original time-consuming and labor-consuming manual cutting link, namely, construction and cutting, can better guarantee the construction quality of longitudinal construction joint cutting, avoids the defect of uneven construction joints caused by manual operation of the traditional hand-pushed road-managing cutting machine, effectively improves the attractiveness of the construction joints, can finish cutting work in the road-pressing process by utilizing the road roller, does not need to purchase other cutting tools, and reduces the construction cost.

The above description is only for the specific embodiment of the present invention, but the present invention is not limited thereto, and all equivalent changes or substitutions for the technical features of the present invention which are conceivable to those skilled in the art are included in the protection scope of the present invention.