JP5997657B2 - Rolling machine - Google Patents

Description

  The present invention relates to a rolling machine for compacting a road surface, and more preferably to a tire roller.

  In asphalt pavement construction on roads and the like, the pavement may be forcibly cooled in order to make it possible to open traffic at an early stage. Cooling in this case uses vaporization heat generated by providing a dedicated blower fan or the like to the tire roller and applying wind to the road surface and applying water from the watering nozzle to the wind.

Utility Model Registration No. 3154152

  However, providing a dedicated blower fan requires a space for that purpose, resulting in an increase in cost (for example, see Patent Document 1). In patent document 1, the length of the whole vehicle body has become long by arrange | positioning a dedicated blower fan to vehicle body back.

  The present invention takes the above-mentioned conventional technology into consideration, and can cool the water efficiently without requiring a dedicated blower when cooling the road surface compacted by the compaction wheel. An object of the present invention is to provide a cost-effective rolling machine.

In order to achieve the above object, in the present invention, a rolling wheel that also serves as at least one of the front and rear wheels, a vehicle body that runs on the rolling wheel, a frame that forms the vehicle body, and a lower front portion of the frame. A tire house that is formed as a space and accommodates front wheels, a heat exchanger accommodated in the frame, and accommodated in the frame, and forms a flow of wind from the rear to the front with respect to the heat exchanger. A fan, and a duct formed in the frame for discharging the heat exchange air that has passed through the heat exchanger to the outside of the vehicle body, the duct including a heat exchange air circulation region in which the heat exchange air flows and the tire includes a shielding portion for guiding said heat exchange air to below at least the vehicle body to shield between the house and the road blowing unit for blowing the heat exchange air to the road surface extending to the bottom of the frame, the road surface Can with unit provides a compacting machine, characterized in that it has a water spray nozzle for spraying water against the heat exchange air.

  Preferably, the shielding part is formed of a plate material extending upward and downward along the duct.

  Preferably, the shielding part is formed of upper and lower rotating plates that extend upward and downward along the duct and are rotatable relative to each other.

  Preferably, the duct further includes a closing plate that covers the upper portion or the lower portion of the duct continuously with the shielding portion.

  According to the present invention, the heat exchange air circulation region where the heat exchange air from the fan that has passed through the heat exchanger circulates and the tire house are shielded by the shielding part that forms the duct. A front wheel accommodated in the tire house is provided with a nozzle for spraying water toward the front wheel. When the heat exchange air flows into the tire house, the water is discharged to the front of the vehicle body while rolling up the water, and the worker sitting in the driver's seat gets wet. By providing the shielding portion, it is possible to prevent heat exchange air from flowing into the tire house and prevent water from being rolled up.

  In addition, the duct is provided with a road surface spraying part for spraying heat exchange air on the underside of the vehicle body, and since this road surface spraying part is equipped with a watering nozzle, the water from the watering nozzle is vaporized to form a mist. Become. The mist hits the road surface, and the road surface can be efficiently cooled by the heat of vaporization.

1 is a schematic side view of a tire roller which is an example of a rolling machine according to the present invention. It is a front part schematic sectional view of a tire roller which shows an example of a compaction machine concerning the present invention. It is the schematic when a flame | frame is seen from the tire house side. It is the schematic of a duct. It is a front schematic sectional drawing of another tire roller which shows an example of the compaction machine which concerns on this invention. It is the schematic for demonstrating operation | movement of the shielding part of the example shown in FIG. It is a front part schematic sectional drawing of another tire roller which shows an example of a compaction machine concerning the present invention.

  As shown in FIG. 1, a tire roller 1 which is a kind of a compaction machine includes a compaction wheel 2 that also serves as front and rear wheels, and a vehicle body 3 that travels by the compaction wheel 2. The rolling wheel 2 includes a front wheel 2a and a rear wheel 2b. A canopy-type driver's seat 4 is provided at the upper center of the vehicle body 3. The driver's seat 4 can be lifted and lowered using the step 5 disposed on the side of the vehicle body 3. An operation stand 6 is disposed in front of the driver seat 4. The operation stand 6 is provided with a handle 7 and an operation panel 8 for operating the vehicle body 3.

  The vehicle body 3 is formed by a frame 9 in which various devices and the like are accommodated. For example, the rear part of the frame 9 is a tank storage chamber in which a fuel tank and a hydraulic oil tank (not shown) are stored. A fuel filler port 10 serving as an inlet for supplying fuel to the fuel tank is provided above the rear portion of the frame 9. On the other hand, the front portion of the frame 9 is an engine storage chamber in which peripheral devices such as an engine and a hydraulic pump (not shown) are stored. The engine storage chamber is covered with an engine cover 11 that can be opened and closed. The hydraulic pump is driven by the engine and supplies hydraulic oil to the traveling motor of the rolling wheel 2. The other part of the frame 9 is used as a water tank for storing water.

  The above-described rolling wheel 2 is accommodated in a tire house 12 formed as a space below the front part and the rear part of the frame 9, respectively. The front wheel 2 a is attached to a yoke 13 that can rotate in the left-right direction with respect to the frame 9, and the yoke 13 rotates in conjunction with the operation of the handle 7. Thereby, the traveling direction of the vehicle body 3 is determined. Water sprayed from the nozzle 20 is supplied to the front wheels 2a and the rear wheels 2b in order to prevent the wheels and asphalt from coming into close contact with each other at the time of road surface rolling.

  As shown in FIG. 2, a radiator 14 serving as a heat exchanger is accommodated in the frame 9. A fan 15 is disposed behind the radiator 14. The fan 15 blows wind toward the radiator 14 from behind. The fan 15 rotates about the rotation shaft 21, and the rotation shaft 21 is an output shaft of an engine (not shown) included in the engine unit 22. A shroud 16 is disposed between the fan 15 and the radiator 14, and the wind from the fan 15 is efficiently sent toward the radiator 14. Note that the fan 15 may be a suction type disposed in front of the radiator 14 because it only has to form a wind flow from the rear to the front with respect to the radiator 14.

  A duct 17 is formed in front of the radiator 14 through which hot air that is heat exchange air that has passed through the radiator 14 circulates. The warm air passes through this duct 17 and is discharged to the outside of the vehicle body 3. As is clear from FIGS. 3 and 4, the duct 17 extends in the vertical direction with respect to the frame 9. Therefore, the heat exchange air flow region 18, which is a region through which the hot air flows in the duct 17, also extends in the vertical direction with respect to the frame 9. Here, the duct 17 includes a shielding portion 19 that shields between the heat exchange air circulation region 18 and the tire house 12. In the example shown in the figure, the shielding portion 19 is a plate material 29 that forms the duct 17, and the heat exchange air flow region 18 and the tire house 12 are thereby completely blocked.

  Thus, the shielding part 19 in which the duct 17 is formed between the heat exchange air circulation region 18 through which the warm air (heat exchange air) from the fan 15 that has passed through the radiator (heat exchanger) 14 circulates and the tire house 12 is formed. It is shielded by. In the tire house 12, the nozzle 20 for spraying water toward the front wheel 2a as described above is provided. When the warm air flows into the tire house 12, the water is discharged to the front of the vehicle body 3 while winding up the water, and the worker sitting on the driver's seat 4 is splashed with water. By providing the shielding part 19, it is possible to prevent warm air from flowing into the tire house 12 and prevent water from being rolled up. The shielding part 19 may completely partition the tire house 12 and the heat exchange air flow area 18, or even if there is a gap through which warm air passes to some extent as long as it can prevent the water from being rolled up. Good.

  The actual wind flow will be described. The engine which the engine unit 22 has is driven, the rotating shaft 21 is rotated, and the fan 15 is rotated. Accordingly, wind is generated from the fan 15 toward the front of the vehicle body 3 and passes through the radiator 14 through the shroud 16. When the wind passes through the radiator 14, heat is exchanged to become warm air. The warm air flows into the heat exchange air flow area 18 in the duct 17 in front of the radiator 14. Although the warm air tends to flow forward in the heat exchange air flow area 18 as it is, it does not flow into the tire house 12 further forward by the shielding part 19 but hits the shielding part 19 and moves upward and downward in the duct 17. Flowing. A slit 23 is formed in the engine cover 11, and the duct 17 (a plate member constituting the shielding portion 19) extends to the slit 23 so as to guide the hot air. Accordingly, the warm air flowing upward in the duct 17 is discharged from the slit 23 to the outside of the vehicle body 3. The duct 17 (a plate member constituting the shielding part 19) further extends to the lower part of the frame 9 and opens downward, so that a road surface spraying part 24 is formed. Accordingly, the warm air that has flowed downward in the duct 17 is discharged from the road surface blowing portion 24 toward the road surface to the outside of the vehicle body 3.

  Here, a watering nozzle 25 is provided in the vicinity of the road surface spraying portion 24. The watering nozzle 25 is for spraying water against the warm air flowing through the duct 17. By spraying water against the warm air, the water from the watering nozzle 25 is vaporized and becomes a mist. This mist is discharged from the road surface spraying part 24 as it is and hits the road surface. For this reason, the road surface can be efficiently cooled by the heat of vaporization. Therefore, the road surface can be quickly cooled, and the traffic can be opened quickly. In addition, in order to make water mist efficiently, you may provide the venturi part which narrowed down the internal diameter of the road surface spraying part 24, and may raise the flow velocity of warm air.

  As shown in FIGS. 5 and 6, rotating plates 26 and 27 provided in the duct 17 may be used as the shielding part 19. The rotating plates 26 and 27 are connected to each other through a connecting portion 28 at their ends, and can be rotated through the connecting portion 28. The rotating plate 26 extends upward along the duct 17 from the connecting portion 28, and the rotating plate 27 extends downward along the duct 17 from the connecting portion 28. If the road surface is earth and sand, there is a possibility that the earth and sand will rise due to warm air and affect the operator and surroundings. In such a case, in order to prevent the warm air from being discharged below the vehicle body 3, the lower portion of the duct 17 (the road surface blowing portion 24) is blocked by the rotating plate 27 as shown in FIG. 5. Specifically, the rotating plate 27 is rotated around the connecting portion 28 toward the rear of the vehicle body 3 and is brought into close contact with the wall on the rear side of the duct 17. As a result, the heat exchange air flow area 18 and the road surface blowing part 24 are partitioned, so that all the hot air that has passed through the radiator 14 flows only above the duct 17 and is discharged to the outside of the vehicle body 3 through the slit 23. It will be.

  On the other hand, when the road surface is asphalt, the road surface is very hot after the rolling by the front wheels 2a, so it is necessary to increase the cooling efficiency. In such a case, if all the warm air is used for mist formation of water from the watering nozzle 25, the cooling efficiency can be increased. For this reason, as shown in FIG. 6, the upper portion of the duct 17 is closed by the rotating plate 26, and all the warm air is circulated only below the duct 17. Specifically, the rotating plate 26 is rotated around the connecting portion 28 toward the rear of the vehicle body 3, and is brought into contact with the rear surface of the engine cover 11 on the rear side of the slit 23 (example in FIG. 6) or a radiator. 14 is brought into contact with the upper wall surface. As a result, the heat exchange air flow area 18 and the upper space of the vehicle body 3 through the slit 23 are partitioned, so that all the warm air that has passed through the radiator 14 flows into the road surface blowing portion 24. For this reason, the flow velocity of the warm air is increased, and as a result, the mist formation of water from the water spray nozzle 25 is promoted, and the road surface cooling using the heat of vaporization can be performed efficiently. 5 and 6 show an example in which the above-described plate member 29 is also used as the shielding portion, but the rotating plate 27 is located between the heat exchange air flow region 18 and the tire house 12. Since it partitions, the board | plate material 29 can also be made unnecessary.

  In addition, when the above-described plate material 29 is used, if it is desired to distribute the warm air only above or below the duct 17, a closing plate 30 as shown in FIG. 7 may be used. The blocking plate 30 indicated by the solid line in FIG. 7 covers the upper side of the duct 17 and prevents the warm air from being discharged to the upper side of the vehicle body 3 through the slit 23. Specifically, the closing plate 30 is disposed in contact with the front wall surface of the duct 17 and the upper wall surface of the radiator 14. That is, the closing plate 30 continuously forms the duct 17 with the plate material 29 as the shielding portion 19 and closes the upper portion of the duct 17. For this reason, since the heat exchange air circulation area 18 and the upper space of the vehicle body 3 via the slit 23 are partitioned, all the warm air flows downward through the duct 17 and is blown from the road surface blowing portion 24 toward the road surface.

  On the other hand, when it is desired to discharge the warm air only from above the vehicle body 3, the closing plate 30 may be provided at the position indicated by the dotted line in FIG. Specifically, the closing plate 30 is arranged at a position that partitions between the heat exchange air flow region 18 and the road surface blowing portion 24 in the duct 17. That is, the closing plate 30 forms a duct 17 continuously with the plate material 29 that is the shielding portion 19 and closes the lower portion of the duct 17. Thereby, all the warm air is discharged to the upper part of the vehicle body 3 through the slit 23. Controlling the flow direction of the hot air in the duct 17 according to the application, for example, when it is not desired to blow the hot air onto the road surface or when it is desired to efficiently mist the water from the watering nozzle 25. Can do. The closing plate 30 that closes the upper portion or the lower portion of the duct 17 may use separate plate materials for the upper portion and the lower portion, or may use the same plate material.

1: tire roller, 2: rolling wheel, 3: vehicle body, 4: driver's seat, 5: step, 6: operation stand, 7: handle, 8: operation panel, 9: frame, 10: fuel filler, 11: engine Cover: 12: Tire house, 13: York, 14: Radiator (heat exchanger), 15: Fan, 16: Shroud, 17: Duct, 18: Heat exchange air flow area, 19: Shielding part, 20: Nozzle, 21 : Rotating shaft, 22: engine unit, 23: slit, 24: road surface spraying part, 25: sprinkling nozzle, 26: rotating plate, 27: rotating plate, 28: connecting part, 29: plate material, 30: blocking plate

Claims (4)

A rolling wheel that also serves as at least one of the front and rear wheels;
A vehicle body driven by the rolling wheel;
A frame forming the vehicle body;
A tire house formed as a space below the front part of the frame and containing the front wheels;
A heat exchanger housed in the frame;
A fan housed in the frame and forming a flow of wind from the rear to the front with respect to the heat exchanger;
A duct that is formed in the frame and that discharges heat exchange air that has passed through the heat exchanger to the outside of the vehicle body,
The duct is shielded between a heat exchange air circulation region through which the heat exchange air flows and the tire house and guides the heat exchange air at least below the vehicle body, and extends to a lower portion of the frame. A road surface spraying part for spraying the heat exchange air against
The rolling compaction machine , wherein the road surface spraying unit includes a watering nozzle that sprays water on the heat exchange air .   The rolling device according to claim 1, wherein the shielding portion is formed of a plate material extending upward and downward along the duct.   2. The rolling machine according to claim 1, wherein the shielding portion is formed by upper and lower rotating plates that are rotatable upward and downward along the duct.   The rolling machine according to claim 2, wherein the duct further includes a closing plate that covers the upper portion or the lower portion of the duct continuously with the shielding portion.

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