KR20180016746A - Hybrid spreader having the features of the water sprinkler - Google Patents

Abstract

Disclosed is a spreader for paving a road which includes a sprinkler system and an auger system to allow a water mixing pouring method to stabilize a sub-base and shorten work time to improve economic efficiency and maximize quality improvement. A first water tank is arranged in front of an engine room of the spreader. A hopper system is arranged in front of the front water tank. A conveyor system is longitudinally extended and arranged below the hopper system, the front water tank, and the engine room. A caterpillar is arranged on both sides of the conveyer system. An auger system is laterally arranged on a lower side behind the engine room. A screed is arranged behind the auger system. An attachment drive vehicle is detachably connected to a rear of the screed by a connecting rod to be arranged. The attachment drive vehicle can be driven by power of an engine embedded therein to be moved. A second water tank is loaded on a vehicle frame of the attachment drive vehicle. The spreader can be applied to pouring of concrete for paving a road.

Description

[0002] Hybrid spreaders having a sprinkler function are known as " hybrid spreaders having the features of the water sprinkler &

The present invention relates to a spreader for road paving, and more particularly, to a spreader for road paving, and more particularly, to a pavement spreader for pavement, By arranging the tank as a detachable attaching device and transferring the aggregate in the forward and backward direction and the leftward and rightward direction by using the conveyor system and the auger system, it is possible to stabilize the auxiliary layer by making the water mixture installation method, To a spreader for road pavement which is improved in economy and maximized in quality improvement.

Generally, the road pavement is composed of an auxiliary layer, an ascon layer, and an ascon layer, and is constructed so as to have properties suitable for the intended use of the road. Asphalt pavement refers to the process of laying a heated asphalt mixture on a built-up auxiliary layer in a flat manner with a heated pavement. In this case, the most important process is the installation of the foundation layer aggregate, and the flatness of the asphalt pavement depends on the foundation layer aggregate installation.

The existing auxiliary layer aggregate laying method is a method of laying an aggregate using a motor grader equipment, performing an aggregate aggregation using a vibrating roller, and spraying the aggregate using a water sprayer. In the road pavement using the equipment according to the prior art, it is difficult to inject the water spray before the aggregate is compacted, because the advance of the tire is impossible.

Due to such process limitations, when water is sprinkled on the aged aggregate due to the primary compaction of the rollers, water penetration is delayed and the water flows, forming fine particle layers such as stones, sand, and soil , Which may be a factor that causes the fine particles to penetrate into the ascon substrate and degrade the substrate function.

In addition, due to water spraying by water spray, fine grained film is formed and penetrated into the ascon layer, resulting in faster aging of the asphalt. In addition, the work time is delayed by the installation of the aberration, and the amount of the installation per day is 500 ~ 600㎥. In addition, there is a problem that it is impossible to treat the aggregate on the edge, loss of aggregate occurs, and there is a large difference according to the skill of the operator when the flatness is required, and the edge can not be maintained linearly.

In order to solve such a problem, the present applicant has developed a hybrid spreader having a sprinkler function as disclosed in Korean Patent Registration No. 10-1590303, filed on July 29, 2015 and registered on January 25, 2016 . In the hybrid spreader, the water tank and the water spraying system are installed, and three augers are embedded to properly spray the aggregate. Then, the aggregates are uniformly mixed and installed through a screed.

The hybrid spreader is overloaded due to the load of the water tank mounted on the front and rear sides of the engine room and is transported when the two auger frame passages are widened in the first auger system consisting of a plurality of augers installed longitudinally below the engine room. There is a drawback that heat is generated when the effect is lowered and the passage is narrowed, thereby lowering the working efficiency. As a simple approach to solve this problem, it is necessary to increase the capacity of the engine hydraulic pump and the motor in a stepwise manner, which is economically burdensome.

SUMMARY OF THE INVENTION The object of the present invention is to provide a water spraying system for spraying water on an aggregate and keeping the water content constant, a water tank is installed as a detachable accessory equipment, It is possible to stabilize the auxiliary layer and to improve the efficiency of the work while improving work efficiency and economical efficiency and to improve the quality of the road And to provide a packaging spreader.

In order to solve the above-described technical problems,

As a hybrid spreader for road paving,

Engine room with engine and pump;

A first water tank disposed in front of the engine room;

A hopper system disposed in front of the first water tank;

A conveyor system extending under the hopper system, the first water tank and the engine room;

A caterpillar disposed separately on both sides of the lower end of the conveyor system;

An auger system disposed laterally below and rearward of the engine room;

A screed disposed below the rear water tank and having an aggregate compaction machine; And

A vehicle frame, a plurality of wheels disposed under the vehicle frame, and a plurality of wheels disposed under the vehicle frame, the plurality of wheels being arranged in a detachable manner on the rear side of the screed through a connecting rod, And a sub-drive vehicle having a second water tank mounted thereon.

A plurality of first injection nozzles are provided in a lower portion of the first water tank and the first water tank is fluidly connected to the second water tank mounted on the subordinate driving vehicle through a first water pipe, A second water supply pipe extending from the tank and extending above the screed and the aggregate compaction machine while being supported by the connecting rod and extending downward below the connection frame, And a second injection nozzle is provided at a distal end of the water supply pipe.

Wherein the first injection nozzle is configured to spray water supplied from the first water tank on the aggregate conveyed in the forward and backward directions by the conveyor system by the action of the pump mounted in the engine room, Is characterized in that water supplied from the second water tank is sprayed onto the aggregate conveyed to the left and right by the auger system by the action of the pressurizing pump disposed below the second water tank in the subordinate driving vehicle.

The auger system is characterized in that it includes a single left-and-right moving auger disposed laterally of the hybrid spreader.

As described above, the present invention is to maximize economic efficiency and quality improvement by developing a hybrid sprayer having a new function that integrates existing aggregate laying method and equipment, and is equipped with a self water tank And a large-capacity auxiliary tank is disposed in a detachable manner at the rear of the vehicle. A conveyor system for conveying the aggregate in the longitudinal direction and an auger system for conveying in the lateral direction are installed under the engine room, And then mixes the aggregate uniformly and screeds through it to ensure the best quality control.

The aggregate that has passed through the conveyor system and the transverse auger system is laid flat by the screed and high flatness without correction is maintained even when the vibrating roller is inserted by the first compaction of the damper and the vibrator installed on the screed.

In addition, the sensor installed on the hybrid spreader ensures that the level and slope are laid once without modification to the required level, resulting in excellent quality and economical efficiency due to the flatness accuracy and the shortening of the laying time. In addition, when the aggregate is laid, the edge linearity is accurate, there is no loss, and the roller is easily collapsed to the edge, so that the quality and economy are high.

1 is an external perspective view of a hybrid spreader having a sprinkler function according to a preferred embodiment of the present invention;
FIG. 2 is a perspective view of a hybrid spreader according to a preferred embodiment of the present invention, wherein a rear part of the hybrid spreader is omitted; FIG.
3 is a schematic view illustrating a water tank arrangement structure of a hybrid spreader according to a preferred embodiment of the present invention; And
4 is a view showing the structure and operation of the aggregate compaction machine employed in the hybrid spreader according to the preferred embodiment of the present invention.

Hereinafter, a hybrid spreader having a sprinkler function according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 and 2 show the overall structure of a hybrid spreader 10 according to a preferred embodiment of the present invention.

1 and 2, the hybrid spreader 10 is a device for opening a finisher for packing an asphalt road. The hybrid spreader 10 mainly includes an engine room 20 having an engine and a pump built therein, A hopper system 40 disposed in front of the first water tank 31, a hopper system 40 disposed in front of the first water tank 31, A caterpillar 60 disposed on both sides of the conveyor system 50, an auger system 70 disposed transversely below and rearward of the engine room 20, A screed 80 disposed at the rear of the auger system 70 and integrally connected through a connection frame 81 and an aggregate compaction machine 90 are connected to the screed 80 and the aggregate compaction machine 90 A subordinate driving vehicle 100 connected to the rear side through a connecting rod 101 and a second driving vehicle 100 mounted on the subordinate driving vehicle 100, And a water tank (32).

The subordinate driving vehicle 100 can be moved at the same speed as the running speed of the caterpillar 60 while being driven by the power of the self-contained engine (not shown). For example, a special equipment that can be used as the subordinate drive vehicle 100 is a tire roller. That is, the tire roller can be used by opening the water tank.

The subordinate drive vehicle 100 basically includes a vehicle frame 104 and a plurality of wheels 104 disposed thereunder. A second water tank 32 is mounted on the vehicle frame 104. One end portion of the connecting rod 101 is fastened to the second connecting end portion 102 protruding forward from the vehicle frame 104 and then the other end portion of the connecting rod 101 is connected to the screed 80 And is fastened to the first connecting end portion 95 protruding and extending to the rear side of the aggregate compaction machine 90. At this time, the connecting rod 101 is fastened at the first connecting end portion 95 and the second connecting end portion 102 with a clearance so as to be swingable in the front-back direction and the up-down direction.

Meanwhile, in the conventional road pavement construction, after the aggregate is laid and then the aggregate is compacted using the vibrating roller, water is sprinkled using a separate sprinkler. However, according to the present invention, The tank 31 is disposed and a plurality of first injection nozzles 33 are mounted on the lower portion of the first water tank 31 so that the water can be sprayed while performing an operation of installing the aggregate. In addition, the second water tank 32 is mounted on the subordinate driving vehicle 100 connected to the body of the hybrid spreader 10 through the connecting rod 101 and the second water tank 32 extending from the second water tank 32 The water is sprayed through the second injection nozzle 35 provided at the distal end of the two water supply pipe 36.

FIG. 3 schematically shows a water tank arrangement structure of a hybrid spreader according to a preferred embodiment of the present invention.

1 and 3, the first injection nozzle 33 is fluidly connected to the first water tank 31 to communicate with the first water tank 31, and a pump (not shown) mounted in the engine room 20 The water stored in the first water tank 31 is sprayed onto the aggregate conveyed by the conveyor system 50.

The first water tank 31 is fluidly connected to the second water tank 32 mounted on the subordinate driving vehicle 100 through the first water pipe 34. Preferably, the first water tank 31 stores about one ton of water, which is supplied from the second water tank 32 through the first water pipe 34. A valve (not shown) for adjusting the water supply amount is disposed in the middle of the first water supply pipe 34.

The second water tank 32 mounted on the subordinate drive vehicle 100 can store about 3 to about 5 tons of water. A second water supply pipe 36 extending from the second water tank 32 is supported by the connecting rod 101 and extends upwardly from the screed 80 and the aggregate compaction machine 90, (81). The second injection nozzle (35) is installed at the distal end of the second water supply pipe (36). The second injection nozzle 35 is configured to discharge the water stored in the second water tank 32 to the conveyor system 50 by the action of the pressurizing pump P disposed below the second water tank 32 in the subordinate drive vehicle 100. [ ) On the aggregate conveyed by the sprayer. The pressurizing pump P also serves to supply water in the second water tank 32 to the first water tank 31 through the first water supply pipe 34.

Referring again to Figures 1 and 2, the hopper system 40 disposed in front of the first water tank 31 includes a pair of hoppers 42. The hopper system 40 is normally kept closed and a pair of the hoppers 42 is unfolded outward by a separate hydraulic device (not shown) when driving the hybrid spreader 10 for road pavement work And the aggregate is accommodated in such a manner as to be opened.

Below the hopper system 40, the first water tank 31 and the engine room 20, a conveyor system 50 is arranged extending longitudinally. The conveyor belt 52 of the conveyor system 50 is disposed in the longitudinal direction of the hybrid spreader 10 as shown in Fig. The front end of the conveyor belt 52 is fixed to the first mounting frame 11 (see Fig. 1) disposed in front of the hybrid spreader 10 and the rear end of the conveyor belt 52 is fixed to the lower (Not shown) extending downward from the first mounting frame. The conveyor system 50 is continuously driven in the longitudinal direction so as to transport the aggregates to be charged to the rear side of the hybrid spreader 10 after the hoppers 42 are opened to the right and left. At this time, an impact prevention plate 51 is disposed in front of the conveyor system 50. The impact-preventing plate 51 is installed for the purpose of preventing the shock due to the aggregates, which are opened when the hoppers 42 are opened, from being transmitted to the conveyor system 50 as it is and causing a failure. A cylinder 54 is disposed below the front end of the shock-resistant plate 51. The cylinder 54 operates up and down to provide up and down movement of the anti-shock plate 51 as required. The rear end portion of the impact prevention plate 51 is attached to the left and right vehicle body frames of the hybrid spreader 10 so as to be swingable and pivotable by a bushing.

The trajectory of the hybrid spreader 10, that is, the caterpillar 60, is disposed separately at the lower left and right ends of the conveyor system 50. The caterpillar 60 is typically mounted and mounted on pavement equipment, which facilitates the movement of the hybrid spreader 10 during operation on rugged unpaved roads.

On the other hand, aggregate conveyed to the rear side of the hybrid spreader 10 along the road surface to be packed through the conveyor system 50 after being loaded by the hopper system 40 is transferred to the auger system 70 from the bottom of the hybrid spreader 10 to the left and right. Preferably, the auger system 70 includes a single left and right mobile auger 72. Both ends of the left and right moving auger 72 are rotatably fixedly mounted by a mounting flange (not shown) and a bearing (not shown) extending downward from the hydraulic pump of the engine room 20.

The screed 80 disposed behind the auger system 70 is used for leveling and sloping operations of lean concrete or asphalt and is arranged in the lateral direction of the hybrid spreader 10. The screed 80 can be installed up to 12 m in width at the time of connection. Therefore, the aggregate can be installed even on the edge of the road surface.

Sensors 18 are disposed on the right and left sides of the screed 80, respectively. The sensor 18 is a sensor for measuring the flatness of the road, and a sonic sensor and a slope sensor can be employed. The screed 80 operates in accordance with the control signal provided by the control unit (not shown) of the engine room 20 based on the flatness information of the road surface sensed by the sensor 18, The flatness of the surface can be maximized.

FIG. 4 shows the structure and operation of the aggregate compaction machine employed in the hybrid spreader according to the preferred embodiment of the present invention.

4, the aggregate compaction machine 90 installed at the lower part of the screed 80 is composed of a damper 92 and a vibrator 94. Concrete or asphalt is supplied to the screed 80 After the damper 92 and the vibrator 94 are compacted, the aggregate is finely compacted.

Hereinafter, the operation of the hybrid spreader 10 according to the preferred embodiment of the present invention will be briefly described.

First, the hybrid spreader 10 is placed at the site of the road surface to be packed, and the aggregate transported by the dump truck or the like is accommodated by the hopper system 40 of the hybrid spreader 10. That is, when the hopper 42 of the hopper system 40 is opened to the left and right, the aggregate conveyed by the dump truck or the like is poured onto the conveyor belt 52 of the conveyor system 50 exposed by the open hopper 42 .

The thus fed aggregate is conveyed to the rear side of the hybrid spreader 10 by the conveyor belt 52. At this time, the water in the first water tank 31 disposed in front of the engine room 20 is sprayed onto the aggregate through the first injection nozzle 33.

The aggregate to be conveyed to the rear side of the hybrid spreader 10 by the conveyor belt 52 of the conveyor system 50 is conveyed by the left and right moving auger 72 of the auger system 70 disposed at the rear lower side of the engine room 20 And is carried to the left and right of the hybrid spreader 10. At this time, the water in the second water tank 32 mounted on the subordinate drive vehicle 100 located behind the auger system 70 is sprayed onto the aggregate through the second injection nozzle 35.

Next, the leveling of the aggregate is performed by the screed 80. At this time, based on the flatness information of the road surface sensed by the sensor 18 installed on the outer left and right sides of the screed 80, The screed 80 operates in accordance with the control signal provided by the control device (not shown) to maximize the flatness of the concrete or asphalt pavement surface.

When the planarization by the screed 80 is completed, the aggregate is finely compacted due to the compaction of the damper 92 and the vibrator 94 mounted on the lower portion of the screed 80. Thereafter, secondary compaction is performed using a separate vibrating roller device.

As described above, the hybrid spreader 10 according to the present invention has one water tank mounted on a main body of a vehicle having an engine room, and has a water spraying system corresponding thereto, A water tank is additionally mounted on the subordinate drive vehicle 100 detachably connectable to the main body and the water spray system corresponding thereto is provided so that the aggregate is uniformly mixed with water at the time of installing the aggregate, . That is, it is effective to stabilize the auxiliary layer due to the water mixing and laying method. Further, since a conveyor system capable of moving the aggregate in the forward and backward directions and auger system capable of moving in the leftward and rightward directions are provided at the lower portion of the main body of the working vehicle, the aggregate can be easily transferred and dispersed, Compensation shortens the working time. The installed amount per day is more than 900 ~ 1,000㎥. In addition, by the action of the screed, it is easy to install to the edge of the road surface and there is no loss. In addition, high flatness is maintained by the operation of the sensor, an accurate level is secured, and edge linearity is maintained.

The hybrid spreader 10 according to the present invention is also applicable to the installation of road pavement concrete.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the present invention as defined by the following claims. It can be understood that it is possible.

10: Hybrid spreader 18: Sensor
20: engine room 22: engine
31, 32: water tank 33, 35: injection nozzle
34, 36: water pipe 40: hopper system
42: hopper 50: conveyor system
51: Impact prevention plate 52: Conveyor belt
54: cylinder 60: caterpillar
70: auger system 72: left and right auger
80: Screed 90: Aggregate compaction machine
92: damper 94: vibrator
100: auxiliary drive vehicle 101: connecting rod
110: wheel P: pressure pump

Claims (6)

A hybrid spreader (10) for road paving,
An engine room (20) having an engine (22) and a pump incorporated therein;
A first water tank (31) disposed in front of the engine room (20);
A hopper system (40) disposed in front of the first water tank (31);
A conveyor system (50) extending under the hopper system (40), the first water tank (31) and the engine room (20);
A caterpillar (60) disposed on both sides of the conveyor system (50);
An auger system 70 disposed transversely below and rearward of the engine room 20;
A screed 80 disposed below the rear water tank 34 and having an aggregate compaction machine 90; And
The vehicle frame 104, the vehicle frame 104, and the vehicle frame 104, which are detachably connected to the rear of the screed 80 via a connecting rod 101, A subordinate drive vehicle (100) having a plurality of wheels (104) disposed thereunder, and a second water tank (32) mounted on the vehicle frame (104);
And a hybrid spreader. 2. The water treatment system according to claim 1, wherein a plurality of first injection nozzles (33) are provided below the first water tank (31), and the first water tank (31) The second water pipe (36) is in fluid communication with the second water tank (32) mounted on the vehicle (100) and extends from the second water tank (32) Is extended downwardly of the connecting frame (81) while extending upwardly from the screed (80) and the aggregate compaction machine (90) while being supported by the first water pipe (101) And a second injection nozzle (35) is provided at a distal end thereof. 3. The apparatus according to claim 2, wherein the first injection nozzle (33) is configured to inject water supplied from the first water tank (31) by the action of the pump mounted in the engine room (20) , And the second injection nozzle 35 is sprayed onto the aggregate conveyed in the front and rear direction by the action of the pressurizing pump P disposed below the second water tank 32 in the subordinate driving vehicle 100 , The water supplied from the second water tank (32) is sprayed onto the aggregate conveyed to the left and right by the auger system (70). The hybrid spreader (10) of claim 1, wherein the conveyor system (50) comprises a longitudinally disposed conveyor belt (52) of the hybrid spreader (10), the front end of the conveyor belt (52) Is fixed to a first mounting frame (11) disposed in front of the engine room (20) and the rear end of the conveyor belt (52) is fixed to a second mounting frame extending downward from the bottom of the engine room (20) Spreader. 5. The apparatus according to claim 4, wherein an impact prevention plate (51) is disposed in front of the conveyor system (50), and a cylinder (54) for providing a vertical swing motion is provided below the front end of the impact prevention plate And a rear end portion of the impact prevention plate (51) is attached to the left and right vehicle frames of the hybrid spreader (10) so as to be swingable by bushing. The auger system (70) of claim 1, wherein the auger system (70) includes a single left and right auger (72) disposed transversely of the hybrid spreader (10) Is rotatably fixedly mounted by a bearing and a mounting flange extending downward from the pump of the pump (20).

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