JP4664163B2 - Rolling machine - Google Patents

Description

  The present invention relates to a rolling machine that is suitably used for paving a road surface such as a tire roller or a Macadam roller.

  In general, when paving a road surface or the ground, a rolling machine such as a tire roller or a Macadam roller is preferably used. This rolling machine has a road surface on which a front rolling roller is rotatably provided on the front side of the vehicle body and a rear rolling roller is rotatably provided on the rear side, and a pavement material such as a roadbed material and an asphalt mixture is laid on the road surface. This road surface is compacted by rolling with the front and rear rolling rollers.

  Here, the rolling press machine body usually has a water spray tank for storing a large amount of water sprayed on the road surface paved and a small amount of water sprayed on the surface of the front and rear rolling rollers. And a water sprinkling tank for storing wheels. In this case, water that has been pumped from a river or the like using a pump is stored in a water spray tank for road surfaces, and clean water such as tap water is stored in a water spray tank for wheels. . Thereby, the weight of the whole compaction machine can be increased, and the road surface, the ground, and the like on which the paving material is laid can be efficiently compacted.

  And the water stored by the water spray tank for road surfaces is spread | dispersed on a road surface in the shape of a fine drop through the water spray pipe which has a comparatively large injection hole, and has become the structure which cools a pavement material and accelerates | stimulates hardening. On the other hand, the water stored in the watering tank for the wheels is sprayed on the surface of the front and rear rolling rollers through a watering nozzle having fine injection holes, and the pavement material adheres to the surface of each rolling roller. (For example, refer patent document 1).

Japanese Utility Model Publication No. 5-47007

  However, the above-described rolling mill according to the prior art includes a road surface water tank that stores water sprayed on the road surface and a wheel water tank that stores water sprayed by the rolling roller independently of each other. It is set as the structure provided in.

  For this reason, when one of the water tank for road surface and the water tank for wheels is emptied, the road surface is pressed while new water is supplied into the empty tank. There is a problem that it is necessary to stop, and the workability is lowered. In particular, since the capacity of the wheel sprinkler tank is usually smaller than the capacity of the water sprinkler tank, it is necessary to frequently supply water to the sprinkler tank for wheels. Therefore, there is a problem that workability of the rolling work is reduced.

  For example, when water containing foreign matter such as sand and dust pumped up from a river or the like is stored in a watering tank for wheels, the water nozzle stored in the watering tank for wheels has a fine spray hole. When spraying to the front and rear rolling rollers through the water, the watering nozzle is clogged by foreign matters such as sand mixed in the water. As a result, there is a problem that the proper watering operation to each of the rolling rollers during the rolling operation is not performed, and the workability of the rolling operation is reduced.

  Furthermore, when the water sprinkling port for the wheel sprinkling tank is provided at a high position from the road surface (ground), the worker moves up and down between the road surface and the vehicle body when performing watering work to the water sprinkling tank for the wheel. In addition to increasing the burden on the operator, there is a problem that the workability of the water supply work is reduced.

  The present invention has been made in view of the above-described problems of the prior art, and can easily perform the water supply operation to the watering tank for wheels, and can always store clean water in the watering tank for wheels. An object of the present invention is to provide a rolling machine that can improve the workability of the pressure work.

  In order to solve the above-described problems, the present invention provides a vehicle body in which a front rolling roller is rotatably provided on the front side and a rear rolling roller is rotatably provided on the rear side, and a road surface provided on the vehicle body. A water sprinkling tank for storing a large amount of water for sprinkling water, and a water sprinkling tank for wheels for storing a small amount of water for sprinkling water on the rolling roller provided in the vehicle body separately from the water sprinkling tank for road surface. Applied to the rolling machine.

  And the characteristic of the structure which the invention of Claim 1 employ | adopts is the supply which supplies the water in the said watering tank for road surfaces to the said watering tank for wheels between the said watering tank for road surfaces and the said watering water tank This is because a flow path is provided.

  According to a second aspect of the present invention, there is provided a configuration in which a filter for purifying water flowing into the wheel sprinkling tank is provided in an intermediate portion of the supply flow path.

  According to a third aspect of the present invention, a pump that sucks water in the water spray tank for the road surface and discharges the water into the water spray tank for the wheel is provided in an intermediate portion of the supply flow path.

  According to a fourth aspect of the present invention, the supply channel is a high water level channel that circulates water in the road surface water tank to the wheel water tank when the water level in the road surface water tank is high; A low water level flow path that circulates the water in the road surface water spray tank to the wheel water spray tank when the water level in the road surface water spray tank is low, A filter for purifying water flowing into the wheel sprinkler tank, and a pump that sucks water in the water sprinkler tank for the road surface and discharges the water into the sprinkler tank for wheels at a midpoint of the low water level flow path; There is a configuration in which a filter for purifying water flowing into the wheel water spray tank is provided.

  The invention according to claim 5 is that the water supply port of the water sprinkling tank is arranged on the side surface of the vehicle body so that an operator can perform water supply work while standing on the road surface.

  According to the first aspect of the present invention, when the wheel water tank is emptied, the water stored in the road surface water tank can be supplied to the wheel water tank through the supply channel. This eliminates the need for the operator to replenish new water through the water supply port into the emptied watering tank for the wheel, thereby improving the workability of the rolling operation.

  According to the invention of claim 2, by providing a filter in the middle of the supply flow path, for example, even if water mixed with foreign matters such as sand and dust is stored in the water spray tank for road surface, When the water in the water spray tank flows into the wheel water spray tank through the pipe, the mixed foreign matter can be filtered by the filter. Thereby, the water stored in the water sprinkling tank for the wheel can be purified.For example, when water in the water sprinkling tank for the wheel is sprayed from the watering nozzle having fine injection holes to each of the rolling pressure rollers, It is possible to prevent the watering nozzle from being clogged with foreign matter. Accordingly, it is possible to always perform an appropriate watering operation on the front and rear rolling rollers during the rolling operation, and to improve the workability of the rolling operation.

  According to the invention of claim 3, by providing a pump in the middle of the supply flow path, the water stored in the water spray tank for the road surface is sucked up by the pump and discharged into the water spray tank for the wheel through the supply flow path. Therefore, the water in the road surface water tank can be quickly supplied into the wheel water tank.

  According to the invention of claim 4, when the water level in the road surface water tank is high, the water in the road surface water tank can naturally flow into the wheel water tank through the high water level channel. At this time, since a filter is provided in the middle of the high water level flow path, the water flowing into the water sprinkling tank for the wheel can be purified by filtering the foreign matter mixed in the water with this filter.

  On the other hand, when the water level in the road surface water tank is low, water stored in the road surface water tank is sucked up by a pump provided in the middle of the low water level channel and discharged into the wheel water tank through the low water level channel. Can be made. At this time, the water which flows in the water sprinkling tank for wheels can be purified by the filter provided in the middle of the low water level flow path.

  According to invention of Claim 5, since the water supply port of the wheel water spray tank was arrange | positioned in the side part of the vehicle body, the worker stood on the road surface from the water supply port of the wheel water spray tank into the wheel water spray tank. New water can be replenished. Therefore, when the water supply operation is performed from the water supply port of the watering tank for wheels, the operator does not need to move up and down between the vehicle body and the road surface, and the workability can be improved.

  Hereinafter, the embodiment of the rolling machine according to the present invention will be described in detail with reference to FIGS. 1 to 13 by taking as an example a case where the rolling machine is applied to a tire roller.

  In the figure, reference numeral 1 denotes a tire roller as a rolling machine. The tire roller 1 has a vehicle body 2 extending in the front and rear directions. The vehicle body 2 is mounted on a frame 17 and a frame 17 described later. A front device cover 3 and a rear device cover 4 that cover devices (not shown) such as an engine and a hydraulic pump are roughly configured. A front rolling roller 5 (described later) is provided on the front side of the vehicle body 2, and a rear rolling roller 7 (described later) is provided on the rear side of the vehicle body 2. Therefore, the road surface with paved material and the ground are crushed.

  Reference numeral 5 denotes a front rolling roller provided rotatably on the front side of the vehicle body 2, and the front rolling roller 5 is attached to a single front axle (not shown) extending in the left and right directions. It is comprised by the rubber tire (for example, 3 pieces). Here, on the front side of the vehicle body 2, a roller support yoke 6 that turns left and right with respect to the vehicle body 2 by operating a handle 13 described later is provided, and the front axle of the front rolling roller 5 is provided. Both end sides are rotatably supported by the roller support yoke 6.

  Reference numeral 7 denotes a rear rolling roller provided rotatably on the rear side of the vehicle body 2. The rear rolling roller 7 is attached to a plurality of rear axles (not shown) (not shown) extending in the left and right directions. For example, it is constituted by four rubber tires. The rear axle of the rear rolling roller 7 is configured to be driven to rotate forward and backward by a traveling hydraulic motor (not shown) disposed on the rear side of the vehicle body 2.

  Reference numeral 8 denotes a floor plate provided at the front and rear center portions of the vehicle body 2, and the floor plate 8 is disposed between the front device cover 3 and the rear device cover 4 and is used by a driver who drives the tire roller 1. Form a scaffold. On the floor plate 8, a driver's seat 10, a cockpit 12 and the like which will be described later are provided.

  9 is a boarding / alighting step provided on the left side surface of the vehicle body 2, and the boarding / alighting step 9 is formed as a stepped step extending obliquely upward from the road surface toward the floor board 8. It forms a foothold when getting on and off between.

  Reference numeral 10 denotes a driver seat disposed on the floor board 8, which is seated by a driver of the tire roller 1, and the upper side of the driver seat 10 is covered with a canopy 11. A control stand 12 for maneuvering the tire roller 1 is erected on the front side of the driver's seat 10, and the roller support yoke 6 is turned left and right in the control stand 12 to rotate the front rolling roller. A handle 13 for steering 5 is provided.

  Then, the operator sits in the driver's seat 10 and causes the tire roller 1 to travel forward or backward on the road surface, so that the pavement material laid on the road surface is rolled by the front rolling roller 5 and the rear rolling roller 7. Can be pressed. At this time, the operator seated in the driver's seat 10 can control the traveling direction of the tire roller 1 by turning the front rolling roller 5 left and right by operating the handle 13 and the like. It has become.

  14 is a water spray pipe for road surface provided on the rear end side of the vehicle body 2, and the water spray pipe for road surface 14 is connected to a water spray tank 21 for road surface which will be described later. The water stored in the road surface water spray tank 21 is pumped to the road surface water sprinkling pipe 14 by a water spray pump (not shown), and is dispersed in the form of fine droplets on the road surface through the road surface water sprinkling pipe 14. It has become.

  Reference numeral 15 denotes a plurality of front watering nozzles located near the front rolling roller 5 and located on the front end side of the vehicle body 2, and 16 is located near the rear rolling roller 7 and located on the rear end side of the vehicle body 2. In the plurality of rear watering nozzles provided, the front watering nozzle 15 and the rear watering nozzle 16 have finer injection holes than the road surface watering pipe 14, and are connected to a wheel watering tank 22 described later. Yes. The water stored in the wheel water tank 22 is pumped to the front water nozzle 15 and the rear water nozzle 16 by a water pump (not shown), and the surface of the front rolling roller 5 through the front water nozzle 15. And sprayed in the form of a mist on the surface of the rear rolling roller 7 through the rear watering nozzle 16.

  Reference numeral 17 denotes a frame that serves as a base of the vehicle body 2, and the frame 17 includes a left vertical plate 17A and a right vertical plate 17B that extend in the front and rear directions while facing in the left and right directions, as shown in FIGS. The left and right vertical plates 17A and 17B are connected to each other, the front horizontal plate 17C and the rear horizontal plate 17D extending in the left and right directions, and the front and rear sides of the left and right vertical plates 17A and 17B, A left side plate 17E, a right side plate 17F extending in the rear direction, a bottom plate 17G extending in the front and rear direction so as to close the lower ends of the left and right vertical plates 17A, 17B, a left vertical plate 17A, and a left side plate The left upper surface plate 17H extending forward and rearward to close the upper end side of 17E, and the right upper surface plate 17I extending frontward and rearward to close the upper end sides of the right vertical plate 17B and right side surface plate 17F. It is constructed and forms a strong box-shaped support structure. The frame 17 is provided with a road surface water tank 21 and a wheel water tank 22 which will be described later.

  Reference numeral 18 denotes a tank housing portion provided on the lower side of the front portion of the frame 17, and the tank housing portion 18 extends in the left and right directions from the left side plate 17E to the right side plate 17F of the frame 17. 22 is accommodated.

  Reference numeral 19 denotes a pipe housing part that is located on the lower side of the frame 17 and is located on the rear side of the tank housing part 18. The pipe housing part 19 houses a supply flow path 23 and the like to be described later. And the piping accommodating part 19 becomes a structure covered with the cover 19A so that opening and closing is possible.

  Reference numeral 20 denotes a square hole-like opening provided on the left side plate 17E of the frame 17 and positioned above the tank housing part 18, and the opening 20 is provided with a water supply port 22A of a water sprinkling tank 22 to be described later. It is what is done. The opening 20 is configured to be openable and closable by the cover 20A.

  Reference numeral 21 denotes a road surface water spray tank integrally formed with the frame 17, and the road surface water spray tank 21 includes a left vertical plate 17A, a left side plate 17E, a left upper surface plate 17H, etc. of the frame 17, as shown in FIGS. A left tank portion 21A that extends forward and rearward, and a right tank portion 21B that extends frontward and rearward and is surrounded by a right vertical plate 17B, a right side plate 17F, a right upper surface plate 17I, and the like. The intermediate tank portion 21C is surrounded by the plates 17A and 17B, the front and rear horizontal plates 17C and 17D, the bottom plate 17G, and the like and extends in the front and rear directions. Here, the left tank portion 21A, the right tank portion 21B, and the intermediate tank portion 21C communicate with each other, and the capacity of the road surface water spray tank 21 is set to about 4000 liters, for example.

  And in the water spray tank 21 for roads, the water pumped up from the river etc. using the pumping pump (not shown) is stored, for example, and the water stored in this water spray tank 21 for roads is the water spray pipe for road surfaces. 14 is spread on the road surface. Further, as shown in FIG. 3, the left upper surface plate 17H of the frame 17 is provided with a water supply port 21D of a water spray tank 21 for road surface, and the water supply port 21D is opened and closed by a lid (not shown). It has become.

  Reference numeral 22 denotes a wheel water tank provided on the frame 17 separately from the road surface water tank 21. As shown in FIG. 3, the wheel water tank 22 is made of a material having an excellent rust prevention function such as a stainless steel plate. It is used to form a rectangular parallelepiped box extending in the left and right directions. And the capacity | capacitance of the water tank 22 for wheels is set to the capacity | capacitance smaller than the water tank 21 for road surfaces, for example, 400 liters. Here, the water sprinkling tank 22 is accommodated in the tank accommodating portion 18 of the frame 17 so as to be positioned on the rear side of the front rolling roller 5 and in front of the frame 17 as shown in FIG. It is arranged on the subordinate side.

  In the wheel water tank 22, for example, clean water that does not contain foreign substances such as tap water is stored, and the water stored in the wheel water tank 22 passes through the front water nozzle 15 and the front rolling roller 5. The water is sprayed on the surface of the rear pressure roller 7 through the rear watering nozzle 16. Further, a pipe-like water supply port 22A protrudes from the left upper surface side of the water sprinkling tank 22, and the water supply port 22A is opened and closed by a lid (not shown).

  Here, as shown in FIG. 1, the water supply port 22 </ b> A of the water sprinkling tank 22 is provided in the left side plate 17 </ b> E of the frame 17 in a state where the water sprinkling tank 22 is disposed in the tank housing portion 18 of the frame 17. The position of the opening 20, that is, the ground surface H of the water supply port 22 </ b> A is set to a dimension that can be reached by an operator standing on the road surface. Thus, the operator replenishes new water into the wheel sprinkling tank 22 from the water supply port 22A in a state where the worker stands up on the road surface without going up and down between the vehicle body 2 (frame 17) and the road surface. It is the structure which can perform work (water supply work).

  The road surface water spray tank 21 and the wheel water sprinkle tank 22 individually provided on the frame 17 constituting the vehicle body 2 are connected to each other via a supply flow path 23 described later housed in the pipe housing portion 19 of the frame 17. When the wheel water tank 22 is connected to each other and becomes empty, the water in the road surface water tank 21 can be supplied into the wheel water tank 22 through the supply channel 23.

  23 is a supply flow path provided between the water spray tank 21 for road surface and the water spray tank 22 for wheels, and the supply flow path 23 is a pipe housing part 19 of the frame 17 as shown in FIGS. It arrange | positions in and connects between the water tank 21 for road surfaces, and the water tank 22 for wheels. The supply passage 23 supplies water in the road surface water tank 21 to the wheel water tank 22 when the wheel water tank 22 becomes empty, as shown in FIGS. Further, each direction switching valve 24, 25, 26, which will be described later, a high water level outflow pipe 27, a common pipe 28, an inflow pipe 29, a low water level outflow pipe 32, a connection pipe 33, a pump pipe 34, a circulation connection pipe 36, etc. Has been.

  Reference numeral 24 denotes a three-port / two-direction directional switching valve (three-way valve) for connecting a high water level outflow pipe 27, a common pipe 28, and a connection pipe 33, which will be described later. The directional switching valve 24 is connected to the high water level outflow pipe 27. A port 24A to which the common pipe 28 is connected, a port 24C to which the connection pipe 33 is connected, and a switching lever 24D operated by an operator. The direction switching valve 24 is selectively switched between a valve position for communicating between the ports 24A and 24B and a valve position for communicating between the ports 24B and 24C in accordance with the operation of the switching lever 24D.

  Reference numeral 25 denotes a 3-port 2-position directional switching valve (three-way valve) for connecting the common piping 28, the inflow piping 29, and the pump piping 34, which will be described later. The directional switching valve 25 is connected to a port 25A to which the common piping 28 is connected. , A port 25B to which the inflow pipe 29 is connected, a port 25C to which the pump pipe 34 is connected, and a switching lever 25D. The direction switching valve 25 is selectively switched between a valve position for communicating between the ports 25A and 25B and a valve position for communicating between the ports 25A and 25C in accordance with the operation of the switching lever 25D.

  Reference numeral 26 denotes a 3-port 2-position directional switching valve (three-way valve) for connecting a low water level outflow pipe 32, a connection pipe 33, and a circulation connection pipe 36, which will be described later. A port 26A to be connected, a port 26B to which the connection pipe 33 is connected, a port 26C to which the circulation connection pipe 36 is connected, and a switching lever 26D are provided. The direction switching valve 26 is selectively switched between a valve position for communicating between the ports 26A and 26B and a valve position for communicating between the ports 26B and 26C in accordance with the operation of the switching lever 26D.

  A high water level outflow pipe 27 connects the road surface water spray tank 21 and the direction switching valve 24. One end 27A of the high water level outflow pipe 27 is connected to the road surface water spray tank 21, and the other end side is switched in direction. It is connected to the port 24A of the valve 24. The high water level outflow pipe 27 is provided with an on-off valve 30 described later.

  Here, one end side 27A of the high water level outflow pipe 27 opens from the bottom surface of the road surface sprinkling tank 21 to a position of a height dimension A, and the opening position of one end side 27A of the high water level outflow pipe 27 is the water spray for road surface. This is a reference position for determining whether the water level in the tank 21 is high or low. That is, in the present embodiment, when the water level in the road surface water spray tank 21 is higher than the opening position (height dimension A) on one end side 27A of the high water level outflow pipe 27, the water level is high. When it is below the opening position of the one end side 27A, the water level is low. The high water level outflow pipe 27 allows the water in the road surface water tank 21 to flow out toward the wheel water tank 22 when the water level in the road surface water tank 21 is high.

  A common pipe 28 connects the direction switching valves 24 and 25. One end of the common pipe 28 is connected to the port 24B of the direction switching valve 24, and the other end is connected to the port 25A of the direction switching valve 25. Yes. The common pipe 28 is provided with a filter 31 described later.

  29 is an inflow pipe connecting the direction switching valve 25 and the wheel sprinkling tank 22. One end of the inflow pipe 29 is connected to the port 25 </ b> B of the direction switching valve 25, and the other end is the wheel sprinkling tank 22. It is connected to the. The inflow pipe 29 allows the water flowing from the road surface water tank 21 through the high water level outflow pipe 27 and the common pipe 28 to flow into the wheel water tank 22.

  An open / close valve 30 is provided in the middle of the high water level outflow pipe 27. The open / close valve 30 has an open / close lever 30A operated by an operator, and the high water level outflow pipe 27 is operated according to the operation of the open / close lever 30A. Is to communicate or block.

  A filter 31 is provided in the common pipe 28, and the filter 31 filters foreign matter mixed in the water flowing into the wheel water tank 22 through the common pipe 28, and enters the wheel water tank 22. It always supplies clean water.

  32 is a low water level outflow pipe connecting the water spray tank 21 for road surface and the direction switching valve 26. One end side 32A of the low water level outflow pipe 32 is connected to the water spray tank 21 for road surface, and the direction of the other end side is switched. It is connected to port 26A of valve 26. Here, one end side 32 </ b> A of the low water level outflow pipe 32 is open near the bottom surface of the water spray tank 21 for road surface, which is lower than the one end side 27 </ b> A of the high water level outflow pipe 27. The low water level outflow pipe 32 allows water in the road surface water tank 21 to flow out toward the wheel water tank 22 by a pump 35 described later when the water level in the road surface water tank 21 is low.

  Reference numeral 33 denotes a connection pipe for connecting the direction switching valve 26 and the direction switching valve 24. One end of the connection pipe 33 is connected to the port 26B of the direction switching valve 26, and the other end is a port of the direction switching valve 24. 24C is connected. The connection pipe 33 guides the water flowing out from the road surface water tank 21 to the low water level outflow pipe 32 to the common pipe 28 when the water level in the road surface water tank 21 is low.

  Reference numeral 34 denotes a pump pipe connecting the wheel sprinkling tank 22 and the direction switching valve 25. One end of the pump pipe 34 is connected to the port 25C of the direction switching valve 25, and the other end is connected to the wheel sprinkling tank 22. It is connected to the. A pump 35 described later is provided in the middle of the pump pipe 34.

  Reference numeral 35 denotes a pump provided in the pump pipe 34. The pump 35 is operated by operating a switch 35A shown in FIGS. 7 and 8, and sucks up water stored in the water spray tank 21 for road surface. The water is discharged into the water spray tank 22.

  Reference numeral 36 denotes a circulation connection pipe that connects between the wheel water tank 22 and the direction switching valve 26. One end side 36A of the circulation connection pipe 36 is connected to the vicinity of the bottom surface of the wheel water tank 22 and the other end side. Is connected to the port 26C of the direction switching valve 26.

  Reference numeral 37 denotes a water level gauge attached to the road surface water spray tank 21. The water level gauge 37 is for determining the water level in the road surface water spray tank 21 from the outside (see FIG. 7). Then, the operator discriminates the water level in the road surface water spray tank 21 by the water level gauge 37, and depending on whether the water level in the road surface water spray tank 21 is high or low, the direction switching valves 24, 25, 26, the open / close valve 30, the switch 35A of the pump 35 and the like are operated.

  Here, the high water level outflow pipe 27, the on-off valve 30, the direction switching valve 24, the common pipe 28, the direction switching valve 25, and the inflow pipe 29 are connected to the water spray tank 21 for the road surface as shown by a bold line in FIG. A high water level flow path 38 is configured in the supply flow path 23 that connects the water sprinkling tank 22 for wheels. The high water level channel 38 is configured such that when the water level in the road surface water tank 21 is high and the water level in the road surface water tank 21 is high, the water in the road surface water tank 21 is transferred to the wheel water tank 22. To be distributed.

  Further, the low water level outflow pipe 32, the direction switching valve 26, the connection pipe 33, the direction switching valve 24, the common pipe 28, the direction switching valve 25, and the pump pipe 34 described above are for road surfaces as shown by bold lines in FIG. A low water level channel 39 is configured in the supply channel 23 connecting the water tank 21 and the wheel water tank 22. The low water level channel 39 is configured to force the water in the road surface water tank 21 by the pump 35 when the water level in the road surface water tank 21 is low with the wheel water tank 22 empty. It distribute | circulates to the water sprinkling tank 22 for wheels.

  Furthermore, the circulation connecting pipe 36, the direction switching valve 26, the connecting pipe 33, the direction switching valve 24, the common pipe 28, the direction switching valve 25, and the pump pipe 34 described above are for road surfaces as shown by bold lines in FIG. The circulation flow path 40 is comprised among the supply flow paths 23 which connect between the water spray tank 21 and the wheel water spray tank 22. The circulation passage 40 is configured such that the water stored in the wheel sprinkling tank 22 is circulated by the pump 35. Even when water mixed with foreign matters is stored in the wheel sprinkling tank 22, the water is stored in the circulation passage 40. The filter 31 provided in the common pipe 28 constituting the circulation channel 40 can be cleaned.

  The tire roller 1 according to the present embodiment has the above-described configuration. When a road surface rolling operation (paving operation) is performed using the tire roller 1, the driver seated on the driver's seat 10 handles the steering wheel. 13 or the like is operated to cause the tire roller 1 to travel forward or backward. As a result, the pavement material such as the roadbed material and asphalt mixture laid on the road surface can be rolled and compacted by the front rolling roller 5 and the rear rolling roller 7.

  At this time, water is stored in each of the road surface water tank 21 and the wheel water tank 22, and the weight of the entire tire roller 1 is stored by the water stored in the road surface water tank 21 and the wheel water tank 22. By increasing, the road surface on which the paving material is laid can be efficiently compacted.

  During this rolling operation, the water stored in the road surface water tank 21 is pumped to the road surface water pipe 14 by a water pump (not shown), and is narrowed to the road surface through the road surface water pipe 14. Sprayed in drops.

  On the other hand, water stored in the wheel sprinkling tank 22 is pumped to the front watering nozzle 15 and the rear watering nozzle 16 by a watering pump (not shown), and passes through the front watering nozzle 15 to the surface of the front rolling roller 5. It is sprayed in the form of a mist and sprayed on the surface of the rear rolling roller 7 through the rear watering nozzle 16 in the form of a mist. Thereby, it can prevent that a pavement material adheres to the surface of the front rolling roller 5 and the back rolling roller 7, and can improve workability | operativity of a rolling operation.

  Here, since the capacity of the water sprinkling tank 22 is smaller than the capacity of the water sprinkling tank 21 for roads, even when a large amount of water is normally stored in the water sprinkling tank 21 for roads, the water sprinkling tank for wheels is used. Water in 22 is consumed at an early stage, and the water sprinkling tank 22 for wheels is emptied.

  In contrast, in the present embodiment, the water stored in the road surface water tank 21 can be easily replenished (watered) into the wheel water tank 22 through the supply flow path 23. Hereinafter, water supply work from the water spray tank 21 to the wheel water tank 22 will be described.

  First, when water is replenished from the water spray tank 21 to the wheel sprinkler tank 22, the worker accommodates the water in the pipe accommodating portion 19 of the vehicle body 2 (frame 17) with the tire roller 1 stopped. The water level meter 37 determines the water level in the road surface watering tank 21.

  For example, as shown in FIG. 11, the water level in the road surface water spray tank 21 is higher than the opening position on the one end side 27 </ b> A of the high water level outflow pipe 27 (position of the height dimension A from the bottom surface of the road surface water spray tank 21). Sometimes, the operator opens the on-off valve 30 to connect the high water level outflow pipe 27. Further, the ports 24A and 24B of the direction switching valve 24 are communicated, and the ports 25A and 25B of the direction switching valve 25 are communicated.

  As a result, the water stored in the water spray tank 21 for road surface is, as shown by an arrow F1 in FIG. 11, the high water level outflow pipe 27, the on-off valve 30, the direction switching valve 24, the common pipe 28, the direction switching valve. 25, the water naturally flows into the wheel sprinkling tank 22 through the high water level flow path 38 including the inflow pipe 29.

  In this way, by supplying a part of the water stored in the road surface water tank 21 to the wheel water tank 22 through the high water level flow path 38, for example, an operator can enter the wheel water tank 22. Compared with the case where tap water or the like is supplied through the water supply port 22A, the time required for the water supply work into the wheel sprinkling tank 22 can be shortened, and the workability of the rolling work can be improved accordingly. .

  In this case, in the water spray tank 21 for road surface, water mixed with foreign matter such as sand and dust pumped up from a river or the like is stored, but provided in a common pipe 28 constituting the high water level flow path 38. The filter 31 filters the foreign matter mixed in the water, so that only clean water in which the foreign matter is not mixed can be supplied into the wheel sprinkling tank 22.

  Therefore, when the water in the wheel water spray tank 22 is supplied to the front water spray nozzle 15 and the rear water spray nozzle 16 having fine spray holes, the spray holes of these water spray nozzles 15 and 16 are clogged with foreign substances. Can be suppressed. As a result, the watering operation from the front watering nozzle 15 to the front rolling roller 5 and the watering operation from the rear watering nozzle 16 to the rear rolling roller 7 can be appropriately performed. By suppressing adhesion of the pavement material to the roller 7, workability of the rolling work can be enhanced.

  Further, when the water level in the water spray tank 21 for the road surface is high, the switch 35A is operated in a state where the ports 24A and 24B of the direction switching valve 24 are connected and the ports 25A and 25C of the direction switching valve 25 are connected. When the pump 35 is operated, the water stored in the road surface water tank 21 can be sucked up by the pump 35 and discharged into the wheel water tank 22 through the high water level channel 38. Thereby, the water supply operation | work from the water spray tank 21 for road surfaces to the water spray tank 22 for wheels can be performed rapidly.

  Next, when the water sprinkling tank 22 for the wheel becomes empty and the water level in the water sprinkling tank 21 for the road surface is lower than the opening position of the one end side 27A of the high water level outflow pipe 27, the operator turns the direction switching valve. In the state where the ports 26A and 26B of 26 are connected, the ports 24B and 24C of the direction switching valve 24 are connected, and the ports 25A and 25C of the direction switching valve 25 are connected, the switch 35A is operated to operate the pump 35. Is activated.

  Thereby, the water stored in the water spray tank 21 for the road surface is, as shown by an arrow F2 in FIG. 12, the low water level outflow pipe 32, the direction switching valve 26, the connection pipe 33, the direction switching valve 24, the common pipe. 28, the water is discharged into the water sprinkling tank 22 through a low water level passage 39 including the direction switching valve 25 and the pump pipe 34.

  Thus, even when the water level in the road surface water tank 21 is low, the water in the road surface water tank 21 can be reliably supplied to the wheel water tank 22 by the pump 35. In this case, the water stored in the road surface water tank 21 is purified by the filter 31 provided in the common pipe 28 constituting the low water level channel 39 while being transferred to the wheel water tank 22. Therefore, clean water can be stored in the watering tank 22 for wheels.

  Next, when the water sprinkling tank 22 is emptied and the road sprinkling tank 21 is also emptied at the same time, the operator pumps water from a river or the like using a pump, for example. Is supplied from the water supply port 21D into the water spray tank 21 for road surface, and clean water such as tap water is supplied from the water supply port 22A to the water spray tank 22 for wheels.

  In this case, as shown in FIG. 1, the water supply port 22 </ b> A of the wheel water spray tank 22 is disposed at the position of the left side surface portion of the vehicle body 2, that is, the opening 20 provided in the left side surface plate 17 </ b> E of the frame 17. The ground height H of 22A is set to a dimension that can be reached by a worker standing on the road surface. Thereby, the worker can perform the water supply work from the water supply port 22A to the water sprinkling tank 22 while standing on the road surface without moving up and down between the vehicle body 2 (frame 17) and the road surface. Therefore, the workability can be improved.

  On the other hand, for example, when there is no clean water to be supplied into the wheel sprinkling tank 22 and water containing foreign matter such as sand and dust is supplied into the wheel sprinkling tank 22, the operator can change the direction switching valve. In the state where the ports 26B and 26C of 26 are connected, the ports 24B and 24C of the direction switching valve 24 are connected, and the ports 25A and 25C of the direction switching valve 25 are connected, the switch 35A is operated to operate the pump 35. Is activated.

  Thereby, the water stored in the water sprinkling tank 22 is connected to the circulation connection pipe 36, the direction switching valve 26, the connection pipe 33, the direction switching valve 24, and the common pipe as shown by an arrow F3 in FIG. 28, it returns to the water sprinkling tank 22 through the circulation flow path 40 including the direction switching valve 25 and the pump pipe 34.

  In this way, even when water containing foreign matter is stored in the water sprinkling tank 22 for the wheel, the water in the water sprinkling tank 22 for the wheel is circulated in the circulation flow path 40 by the pump 35, so that the common pipe Since it can be cleaned by the filter 31 provided in 28, clean water can always be stored in the water sprinkling tank 22 for wheels.

  Thus, according to the present embodiment, the road water spray tank 21 and the wheel water spray tank 22 are connected by the supply flow path 23, so even if the wheel water spray tank 22 becomes empty during the rolling operation. The water stored in the road surface water tank 21 can be supplied to the wheel water tank 22 through the supply channel 23. This eliminates the need for an operator to replenish new water into the wheel sprinkling tank 22 that has been emptied through the water supply port 22A, thereby improving the workability of the rolling work.

  Further, since the filter 31 is provided in the common pipe 28 constituting the supply flow path 23, for example, water mixed with foreign matters such as sand and dust pumped up from a river or the like is stored in the water spray tank 21 for road surface. Even when the water in the road surface water tank 21 flows into the wheel water tank 22 through the supply flow path 23, foreign matter is filtered by the filter 31 to be stored in the wheel water tank 22. Water can be purified. Accordingly, when the water in the wheel water spray tank 22 is sprayed from the front and rear water spray nozzles 15 and 16 to the front and rear roller rollers 5 and 7 having the fine injection holes, the water spray nozzles 15 and 16. Can be prevented from being clogged with foreign matters, and an appropriate watering operation can always be performed on the front and rear rolling rollers 5 and 7 during the rolling operation, so that the workability of the rolling operation can be improved.

  Further, in the present embodiment, the supply flow path 23 connecting the road surface water tank 21 and the wheel water tank 22 is provided in the road surface water tank 21 when the water level in the road surface water tank 21 is high. Water in the water spray tank 22 for the wheel and the water spray tank 21 for the road surface when the water level in the water spray tank 21 for the road surface is low. The filter 31 is provided in the middle of the high water level channel 38, and the pump 35 and the filter 31 are provided in the middle of the low water level channel 39.

  As a result, when a large amount of water is stored in the road surface water tank 21, the water in the road surface water tank 21 is purified by the filter 31, and the wheel water tank is passed through the high water level channel 38. 22 can be supplied. On the other hand, when the amount of water stored in the road surface water tank 21 is small, the water in the road surface water tank 21 can be supplied into the wheel water tank 22 through the low water level channel 39 by the pump 35. And the water which flows in into the watering tank 22 for wheels with the filter 31 can be purified.

  Furthermore, the water supply port 22A of the wheel sprinkling tank 22 is arranged on the left side surface portion of the vehicle body 2, and the ground height H of the water supply port 22A is set to a dimension that can be reached by an operator standing on the road surface. The person can easily perform the water supply work from the water supply port 22A to the water sprinkling tank 22 while standing on the road surface without moving up and down between the vehicle body 2 (frame 17) and the road surface. Can increase the sex.

  In the above-described embodiment, the tire roller 1 in which the front rolling roller 5 and the rear rolling roller 7 are each composed of a plurality of rubber tires is described as an example. However, the present invention is not limited to this, for example, a Macadam roller in which the front and rear rolling rollers are made of iron wheels, one of the front and rear rolling rollers is made of iron wheels, and the other is made of rubber tires. The present invention can be widely applied to other rolling machines such as small rollers.

It is a front view which shows the tire roller by embodiment of this invention. It is the left view which looked at the tire roller from the arrow II-II direction in FIG. It is a disassembled perspective view which shows a frame, the water spray tank for road surfaces, and the water spray tank for wheels. It is a top view which shows the water spray tank for road surfaces in the state which used the frame as the virtual line. It is the front view which looked at the water spray tank for road surfaces from the arrow VV direction in FIG. It is the rear view which looked at the water spray tank for road surfaces from the arrow VI-VI direction in FIG. It is a front view of the principal part expansion which expands and shows the watering tank for road surfaces, the watering tank for wheels, a supply flow path, etc. in FIG. It is sectional drawing which looked at the supply flow path, the filter, the pump, etc. from the arrow VIII-VIII direction in FIG. It is sectional drawing which looked at a supply flow path, a filter, a pump, etc. from the arrow IX-IX direction in FIG. It is a flow-path system figure which shows the connection relation of each piping etc. which comprise a supply flow path. FIG. 11 is a flow path system diagram similar to FIG. It is a flow-path system diagram similar to FIG. 10 which showed the low water level flow path by the thick line. It is a flow-path system diagram similar to FIG. 10 which showed the circulation flow path by the thick line.

Explanation of symbols

2 Car body 5 Front rolling roller 7 Rear rolling roller 21 Water spray tank for road surface 22 Water spray tank for wheels 22A Water supply port 23 Supply flow path 24, 25, 26 Directional switching valve 27 High water level outflow pipe 28 Common pipe 29 Inflow pipe 30 Open / close Valve 31 Filter 32 Low water level outflow pipe 33 Connection pipe 34 Pump pipe 35 Pump 36 Connection pipe for circulation 38 High water level flow path 39 Low water level flow path 40 Circulation flow path

Claims (5)

A vehicle body in which a front rolling roller is rotatably provided on the front side and a rear rolling roller is rotatably provided on the rear side, and a road surface that is provided in the vehicle body and stores a large amount of water to spray water on the road surface. In a rolling machine comprising a watering tank and a watering tank for a wheel that stores a small amount of water in order to spray water on the rolling roller provided in the vehicle body separately from the watering tank for road surface,
A rolling compaction machine characterized in that a supply flow path for supplying water in the road surface water tank to the wheel water tank is provided between the road surface water tank and the wheel water tank. .   2. The rolling machine according to claim 1, wherein a filter for purifying water flowing into the wheel sprinkling tank is provided in an intermediate portion of the supply flow path.   3. The rolling machine according to claim 1, wherein a pump that sucks water in the water spray tank for the road surface and discharges the water into the water sprinkling tank for the wheel is provided in an intermediate portion of the supply flow path. The supply channel includes a high water level channel for circulating water in the road surface water tank to the wheel water tank when the water level in the road surface water tank is high, and a water level in the road surface water tank. A low water level flow path that circulates the water in the water spray tank for the road surface to the wheel water spray tank when it is low,
In the middle part of the high water level flow path, a filter for cleaning water flowing into the wheel sprinkling tank is provided,
A pump that sucks the water in the road surface water tank and discharges it into the wheel water tank, and a filter that cleans the water flowing into the wheel water tank, in the middle of the low water level flow path. The compaction machine according to claim 1, wherein:   The water supply port of the watering tank for wheels is configured to be arranged on a side surface of the vehicle body so that an operator can perform water supply work while standing on the road surface. Pressure machine.

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