JP6741633B2 - Rolling machine - Google Patents

Description

The present invention relates to a compaction machine, and more particularly to a technique for adjusting the amount of water or an anti-adhesion agent sprayed.

In compacting road surfaces, rolling machines equipped with rolling rollers on the front and rear wheels are widely used, and water is widely sprayed onto the rolling rollers to prevent asphalt from adhering to the rolling rollers. ing.
Further, a liquid agent such as an anti-adhesion agent is added to water in advance and sprayed on the pressure roller to prevent asphalt from adhering to the roller with a small amount of spray.

However, when a liquid agent such as an anti-adhesion agent is added to water in advance, there is a problem that it is difficult to adjust the concentration even when it is desired to change the concentration of the liquid agent.
Therefore, a technique has been developed in which a tank for storing water and a tank for storing a liquid agent are divided, and an operator operates a switch for spraying each to spray the water and the liquid agent onto the pressure roller (Patent Document 1). 1).

JP, 10-204819, A

However, in the technique disclosed in Patent Document 1, the operator operates the respective switches to adjust the spray amounts of the water and the liquid agent, and due to the skill of the operator, excess and deficiency of the water and the liquid agent occur, and the liquid agent There is room for further improvement because it is possible that waste and construction failure on the paved road surface will occur.

The present invention has been made in view of such a problem, and an object thereof is to control the amount of water and liquid sprayed so as to be an appropriate amount without adjustment by an operator. To provide machines.

In order to achieve the above object, a compaction machine of the present invention includes a first tank that can store a first liquid, a second tank that can store a second liquid, and a compaction roller provided before and after a machine body. And a spraying device provided at a position where the first liquid and the second liquid can be sprayed on the pressure roller, and a second supply for connecting the second liquid from the second tank to the spraying device so that the second liquid can be supplied. A passage, a first supply passage that connects the first tank to the second supply passage so that the first liquid can be supplied, and a mixed liquid of the first liquid and the second liquid from the spraying device to the pressure roller. A water shutoff valve that can be sprayed or stopped on the rollers, a first flow rate adjustment valve that adjusts the flow rate of the first liquid supplied from the first supply path to the second supply path, and a rolling compaction environment. And a controller capable of controlling the first flow rate adjusting valve. The rolling compaction environment detecting unit includes a roller temperature sensor for detecting a temperature of the compacting roller, and a road surface sensor. A road surface temperature sensor for detecting a temperature, wherein the controller has a predetermined temperature difference between the temperature of the pressure roller detected by the roller temperature sensor and the temperature of the road surface detected by the road surface temperature sensor. When it is determined that it is larger than the first liquid, the first flow rate adjusting valve is controlled in the opening direction to increase the amount of the first liquid mixed with the second liquid, and the water shutoff valve is controlled to control the first liquid. And spraying a mixed liquid of the second liquid .

As a result, the difference between the temperature of the compaction roller detected by the roller temperature sensor and the temperature of the road surface detected by the road surface temperature sensor is larger than the predetermined temperature, that is, the temperature difference between the temperature of the compaction roller and the temperature of the road surface. When it is determined that the environment is large and the asphalt is likely to adhere to the first liquid , the first flow rate adjusting valve is controlled in the opening direction so that the first liquid is mixed with the second liquid via the first supply passage . By increasing the amount and controlling the water shutoff valve to spray the mixed liquid of the first liquid and the second liquid, it is possible to reduce the rolling environment , especially the temperature of the rolling roller and the temperature of the road surface detected by the road surface temperature sensor. It is possible to adjust the amount of the first liquid in accordance with the difference of 1 and to spray the mixed liquid having an appropriate concentration from the water spraying section.

Other aspects, before Symbol controller, when the temperature of the compaction roller detected by the roller temperature sensor is determined to below a prescribed temperature, it is preferable to control the first flow control valve in the opening direction ..

As a result, when it is determined that the temperature of the compaction roller detected by the roller temperature sensor is equal to or lower than the specified temperature, that is, the compaction roller temperature is low and the asphalt is easily attached, the first flow rate adjusting valve is opened. By controlling the direction, it is possible to adjust the amount of the first liquid according to the temperature of the pressure roller and to spray the mixed liquid having an appropriate concentration from the water spray section.

Other embodiments set the compaction environment detection means includes asphalt type setting unit capable of inputting the type of asphalt laid on the road surface with the intention of the operator, the control device, by the asphalt type setting unit It is preferable to control the opening and closing of the first flow rate adjusting valve according to the type of asphalt laid on the road surface.

Thereby, by controlling the opening and closing of the first flow rate adjusting valve according to the type of asphalt laid on the road surface input to the asphalt type setting unit by the operator's intention to adjust the concentration of the first liquid of the mixed liquid, It is possible to adjust the amount of the first liquid according to the type of asphalt and to spray the mixed liquid with an appropriate concentration from the water spray section.

Other aspects, the compaction environment detection means includes the possible liquid agent type setting unit inputs the stored in the first tank of the first liquid type at will of the operator, the control device, the It is preferable to control the opening and closing of the first flow rate adjusting valve according to the type of the first liquid stored in the first tank set by the liquid agent type setting unit.

Thereby, the concentration of the first liquid of the mixed liquid is controlled by opening and closing the first flow rate adjusting valve according to the type of the first liquid stored in the first tank which is input to the asphalt type setting unit by the operator's intention. By adjusting, the amount of the first liquid can be adjusted according to the type of the first liquid stored in the first tank, and the mixed liquid with an appropriate concentration can be sprayed from the water sprinkling section.

As another aspect, the rolling compaction environment detection means includes a rolling compaction management unit that detects the number of compaction times at each location of the pavement construction road surface, and the control device controls the location of each pavement construction road surface detected by the rolling compaction management unit. When it is determined that the number of times of rolling pressure is less than a certain number of times, it is preferable to control the first flow rate adjusting valve in the valve opening direction.

As a result, when it is determined that the number of times of rolling at each location of the pavement construction road surface detected by the rolling compaction management unit is equal to or less than a certain number of times, that is, the asphalt is soft and easily adheres to the rolling rollers because the number of rolling is small, By controlling the first flow rate adjusting valve in the valve opening direction, it is possible to adjust the amount of the first liquid according to the number of times of rolling and to spray the mixed liquid with an appropriate concentration from the water spraying section. It

As another aspect, it is preferable to further include a second flow rate adjusting valve that is controllable by the control device and adjusts a flow rate of the second liquid supplied from the second tank to the spraying device.
With this, by controlling the second flow rate adjusting valve by the control unit and making it possible to adjust the flow rate of the second liquid supplied from the second tank to the sprinkling unit, saving of the second liquid in the second tank, For example, the concentration of the first liquid can be increased by reducing the amount of the second liquid.

According to the compaction machine of the present invention, the difference between the temperature of the compaction roller detected by the roller temperature sensor and the temperature of the road surface detected by the road surface temperature sensor is larger than a predetermined temperature, that is, the temperature of the compaction roller and the road surface. When it is determined that the environment has a large temperature difference from the temperature of the asphalt and the asphalt is likely to adhere to the environment, the first flow rate adjusting valve is controlled in the opening direction so that the second liquid flows from the first tank through the first supply passage. Since the amount of the first liquid to be mixed with the liquid is increased and the water shutoff valve is controlled to spray the mixed liquid of the first liquid and the second liquid , the compaction environment , especially the temperature of the compaction roller and the road surface temperature The amount of the first liquid can be adjusted according to the difference from the temperature of the road surface detected by the sensor, and the mixed liquid having an appropriate concentration can be sprayed from the spraying device.
As a result, it is possible to manage the sprayed amount of water and the liquid agent so that the sprayed amount becomes an appropriate amount without adjustment by the operator.

It is a block diagram of the tire roller which concerns on this invention. It is a block diagram which shows the distribution route of the water and the liquid agent of the sprinkling unit which concerns on 1st Embodiment. FIG. 3 is a block diagram showing a connection configuration of an ECU for controlling a tire roller according to the first embodiment. 3 is a flowchart showing a tire roller control procedure executed by the ECU according to the first embodiment. It is a correspondence table of the basic value of the opening degree of the liquid agent flow control valve set based on the type of asphalt and the type of liquid agent stored in the liquid agent tank. It is a block diagram which shows the distribution route of the water and liquid agent of the sprinkling unit which concerns on 2nd Embodiment. It is a block diagram which shows the connection structure of ECU which concerns on control of the tire roller which concerns on 2nd Embodiment. 8 is a flowchart showing a tire roller control procedure executed by the ECU according to the second embodiment.

An embodiment of the present invention will be described below with reference to the drawings.
<First Embodiment>
Referring to FIG. 1, there is shown a configuration diagram of a tire roller (rolling machine) 1 according to the present invention.

The tire roller 1 is equipped with the compaction rollers 3, 3, the machine body 5, the cockpit 7, the sprinkling unit 9, and the compaction management unit 11, and drives the compaction rollers 3, 3 provided in front of and behind the machine body 5. This is a so-called compaction machine that compacts the road surface 13 by the compaction roller 3 while moving the machine body 5 by doing so. Hereinafter, for convenience of description, the compaction roller 3f provided at the front part of the machine body 5 and the compaction roller 3r provided at the rear part of the machine body 5 will be separately described.

The water sprinkling unit 9 includes a water tank (second tank) 20, a liquid agent tank (first tank) 22, water sprinkling nozzles (spraying devices) 24, 24, and a water amount adjusting unit 26.
The water tank 20 is a tank in which water (second liquid) 21 such as tap water is supplied from a water supply port (not shown) provided in front of a later-described cockpit 7 of the machine body 5 and capable of storing water. The liquid agent tank 22 is provided on the lower front side of the later-described cockpit 7 of the machine body 5, and is provided with a liquid agent (first liquid) 23 as a liquid asphalt anti-adhesion agent that can be diluted with water 21 and used. It is a tank that can be stored by being supplied from a supply port (not shown).

The water spray nozzles 24, 24 are respectively provided in the vicinity of the pressure rollers 3f, 3r of the machine body 5, and a mixed liquid of water 21 and a liquid agent 23 (hereinafter, simply referred to as a mixed liquid) supplied from a water amount adjusting unit 26 described later. Can be sprayed on the compaction rollers 3f, 3r. That is, it is possible to prevent asphalt from adhering to the pressure roller 3f, 3r by spraying the mixed liquid on the pressure roller 3f, 3r.

FIG. 2 is a block diagram showing the distribution paths of the water 21 and the liquid agent 23 of the water sprinkling unit 9.
The water amount adjusting unit 26 includes a water pump 30, a water shutoff valve 32, a liquid agent pump 34, and a liquid agent flow rate control valve (first flow rate adjusting valve) 36.

The water 21 stored in the water tank 20 is supplied to the water amount adjustment unit 26 through the water introduction path (second supply path) 40 by the operation of the water pump 30. The liquid agent 23 stored in the liquid agent tank 22 is also supplied to the water amount adjusting unit 26 through the liquid agent introducing passage 42 by the operation of the liquid agent pump 34 like the water 21. The flow rate of the liquid agent 23 supplied to the water amount adjusting unit 26 is adjusted by the liquid agent flow rate control valve 36, and is supplied to the water introduction path 40 through the liquid agent supply path (first supply path) 44 to mix the water 21 and the mixed liquid. Become. When the water shutoff valve 32, which can be controlled to be fully opened or fully closed, is fully opened, the mixed liquid flows from the water spray nozzles 24, 24 provided in the vicinity of the pressure rollers 3f, 3r toward the pressure rollers 3f, 3r. Supplied by spraying. That is, by adjusting the flow rate by the liquid agent flow control valve 36, it is possible to adjust the concentration of the liquid agent 23 in the mixed liquid to be sprayed.

Returning to FIG. 1, the cockpit 7 is provided with a handlebar 50 and an operation panel (rolling compaction environment detecting means, asphalt type setting section, liquid agent type setting section) 52. The steering wheel 50 is a device for steering the tire roller 1. By rotating the steering wheel 50, the steering wheel 50 can be rotated around the center of the rolling roller 3f to rotate the tire roller 1 vertically. Has become. The operation panel 52 is an input device for setting and operating the tire roller 1 as a whole according to the intention of the operator, and in particular, by turning on the watering button 52a, the liquid mixture can be sprayed, and the road surface 13 to be rolled can be pressed. The operator can input and operate the environment (rolling environment) of the road surface 13 to be rolled, such as the type of asphalt laid and the type of the liquid agent 23 stored in the liquid tank 22. Instead of the sprinkling button 52a, a timer-type switch may be used so that the spraying timing can be set, as long as the spraying timing can be operated or set by the operator's intention.

The rolling compaction management unit (rolling compaction environment detecting means, rolling compaction management unit) 11 is configured to include an antenna 60 and a receiver 62. The antenna 60 is provided on the uppermost portion of the tire roller 1 and is capable of receiving radio waves transmitted from an artificial satellite. The receiver 62 is disposed, for example, behind the seat 54, and can convert the radio wave received by the antenna 60 into an electric signal.

As described above, the compaction management unit 11 is mounted on the tire roller 1, and the position coordinates of the antenna 60, that is, the position coordinates of the tire roller 1 are calculated based on the radio waves received by the antenna 60 in the receiver 62, and a personal computer (not shown) is calculated. In 56 (hereinafter abbreviated as PC), it is possible to calculate the locus of the tire roller 1 based on the position coordinates that change with the passage of time, and calculate and display the rolling pressure number N and the like at each location of the pavement construction road surface 13. ing.

A roller temperature sensor (rolling compaction environment detecting means) 70 and a road surface temperature sensor (rolling compaction environment detecting means) 72 are provided near the compaction roller 3r of the machine body 5.
The roller temperature sensor 70 is a sensor that detects the surface temperature of the pressure roller 3r in a non-contact manner. Like the roller temperature sensor 70, the road surface temperature sensor 72 is also a sensor that detects the surface temperature of the road surface 13 in a non-contact manner.

An ECU (control device) 80 is a control device for performing comprehensive control including operation control of an engine (not shown), and is an input/output device, a storage device (ROM, RAM, non-volatile RAM, etc.), a central processing unit. (CPU) and the like.
Referring to FIG. 3, there is shown a block diagram of a connection configuration of the ECU 80 for controlling the tire roller 1 according to the present invention.

An operation panel 52, a roller temperature sensor 70, a road surface temperature sensor 72, and a compaction management unit 11 are electrically connected to the input side of the ECU 80. From the operation panel 52, an ON operation of a watering button 52a and a type of asphalt are performed. The type of the liquid agent 23 stored in the liquid agent tank 22 is input, the temperature of the pressure roller 3r is detected by the roller temperature sensor 70, the temperature of the road surface 13 is detected by the road surface temperature sensor 72, and the pressure control is performed. From the unit 11, the number N of times of compaction based on the position coordinates of the tire roller 1 is detected and input.

A water pump 30, a water shutoff valve 32, a liquid agent pump 34, and a liquid agent flow rate control valve 36 are electrically connected to the output side of the ECU 80. Can be supplied to the water sprinkling unit 9, and by controlling the water shutoff valve 32, the mixed liquid can be sprayed or stopped from the water sprinkling nozzles 24, 24 to the pressure roller 3f, 3r, and the liquid agent pump 34 is operated. Thus, the liquid agent 23 can be supplied from the liquid agent tank 22 to the sprinkling unit 9, and the flow rate of the liquid agent 23 is adjusted by controlling the liquid agent flow rate control valve 36, in other words, the supply amount of the liquid agent 23 to the water 21 is adjusted. be able to.

Referring to FIG. 4, a routine showing a control procedure of the tire roller 1 which is executed by the ECU 80 according to the first embodiment is shown in a flowchart, which will be described below.
This routine starts when it is detected that the watering button 52a is turned on by the operator.

In step S10, the water pump 30 and the liquid agent pump 34 are turned on, and the process proceeds to step S12.
In step S12, the basic value C0 of the opening degree of the liquid agent flow rate control valve 36 is determined from the type of asphalt set by the operator and the type of the liquid agent 23 stored in the liquid agent tank 22 detected by the operation panel 52. The valve is set and opened based on the set basic value C0. The opening of the liquid agent flow control valve 36 shown in this routine is 100% when the liquid agent flow control valve 36 is fully opened. For example, when the basic value C0 is 3%, the liquid agent flow control valve 36 is opened. The liquid agent flow rate control valve 36 is opened at an opening degree corresponding to 3% when fully opened. The same applies hereinafter.

Referring to FIG. 5, there is shown a correspondence table of the basic value C0 of the opening degree of the liquid agent flow rate control valve 36 set based on the type of asphalt and the type of the liquid agent 23 stored in the liquid agent tank 22.
That is, in step S12, the value corresponding to the type (A, B or C) of asphalt detected by the operation panel 52 and the type (X, Y or Z) of the liquid agent 23 stored in the liquid agent tank 22 is basically used. It is determined that the value is C0, and the liquid agent flow rate control valve 36 is opened at an opening degree corresponding to the basic value C0. For convenience of explanation, the opening degree of the liquid agent flow rate control valve 36 at this time is referred to as a first opening degree D1.

Returning to FIG. 4, after opening the liquid agent flow rate control valve 36 at an opening degree corresponding to the basic value C0 in step S12, the process proceeds to step S14.
In step S14, it is determined whether or not the number of times of rolling (based on the position coordinates of the tire roller 1 at the time of execution of this flow) (simply referred to as "rolling number of times N" for convenience of description) is two times (a fixed number of times) or less. When it is determined that the number N of times of compaction detected by the compaction management unit 11 is 2 or less, the liquid agent flow rate control valve 36 that opens at the first opening D1 is further opened by 10%, and the process proceeds to step S18. To do. On the other hand, when it is determined that the number N of times of rolling detected by the rolling management unit 11 is more than 2, the opening degree of the liquid agent flow control valve 36 opened at the first opening D1 is not changed, and the step S18 is performed. Move to. For convenience of explanation, the opening degree of the liquid agent flow rate control valve 36 at this time is referred to as a second opening degree D2.

That is, in step S14 and step S16, when it is determined that the number N of times of compaction is two times or less, in other words, the number N of compactions is small, it is possible that the asphalt laid on the road surface 13 is still not sufficiently compacted. Since there is a possibility that asphalt will adhere to the compaction rollers 3f and 3r, the liquid agent flow rate control valve 36 that is opened at the first opening D1 in order to supply a large amount of the liquid agent 23 is opened by 10%. There is.

In step S18, it is determined whether or not the temperature of the compaction roller 3r is equal to or lower than the specified temperature T1. When it is determined that the temperature of the compaction roller 3r detected by the roller temperature sensor 70 is equal to or lower than the specified temperature T1, the liquid agent flow rate control valve 36 is further opened by 20% from the second opening degree D2, and the process proceeds to step S26. When it is determined that the temperature of the compaction roller 3r detected by the roller temperature sensor 70 is higher than the specified temperature T1, the process proceeds to step S22.

In step S22, it is determined whether or not the difference between the road surface temperature and the temperature of the pressure roller 3r is larger than the predetermined temperature T2. When it is determined that the difference between the temperature of the road surface 13 detected by the road surface temperature sensor 72 and the temperature of the pressure roller 3r detected by the roller temperature sensor 70 is larger than the predetermined temperature T2, the liquid agent flow control valve 36 is opened second. The valve is further opened by 5% from the degree D2 and the process proceeds to step S26. When it is determined that the difference between the temperature of the road surface 13 detected by the road surface temperature sensor 72 and the temperature of the compaction roller 3r detected by the roller temperature sensor 70 is equal to or lower than the predetermined temperature T2, the liquid agent flow control valve 36 is set to the second opening degree. Without changing from D2, the process proceeds to step S26.

That is, in steps S18 to S24, when it is determined that the temperature of the roller compaction roller 3r is equal to or lower than the prescribed temperature T1 when the minimum temperature at the time of general asphalt construction is the prescribed temperature T1, for example, the roller compaction roller 3f, Since the temperature of 3r is low and asphalt may adhere to the pressure rollers 3f and 3r, the liquid agent flow rate control valve 36 that opens at the second opening D2 to supply a larger amount of the liquid agent 23 is further opened by 20%. Speaks. Even when it is determined that the temperature of the compaction roller 3r is higher than the specified temperature T1, when the difference in temperature between the road surface temperature and the compaction rollers 3f, 3r is equal to or higher than the predetermined temperature T2, the compaction is performed by the temperature difference. Since asphalt may adhere to the rollers 3f and 3r, the liquid agent flow rate control valve 36 that opens at the second opening D2 is further opened by 5% in order to supply the liquid agent 23 in a large amount.

In step S26, the water shutoff valve 32 is opened, the mixed liquid is sprayed from the water spray nozzles 24, 24 to the pressure roller 3f, 3r, and the present routine ends.
In this way, by setting and adjusting the opening degree of the liquid agent flow rate control valve 36 in steps S12 to S24, it is possible to adjust the amount of the liquid agent 23 so that the mixed liquid has a concentration suitable for the rolling condition. Has become.
After the end of this routine, this routine is repeatedly executed while the watering button 52a is turned on by the operator.

As described above, in the compaction machine according to the first embodiment, the fluid agent tank 22 that can store the fluid agent 23, the water tank 20 that can store the water 21, and the roller compaction rollers provided before and after the machine body 5. 3f, 3r, water nozzles 24, 24 provided at positions where water 21 and liquid agent 23 can be sprayed onto the pressure roller 3f, 3r, and the water 21 can be connected from the water tank 20 to the water nozzles 24, 24 so that the water 21 can be supplied. A water introducing passage 40, a liquid medicine supplying passage 44 that connects the liquid medicine 23 to the water introducing passage 40 so that the liquid medicine 23 can be supplied, and a liquid medicine adjusting the flow rate of the liquid medicine 23 supplied from the liquid medicine supplying passage 44 to the water introducing passage 40. The flow control valve 36, a compaction environment detecting means for detecting a compaction environment, and an ECU 80 capable of controlling the liquid material flow rate control valve 36 are configured, and the ECU 80 is detected by the compaction environment detecting means. The liquid agent flow rate control valve 36 is controlled to be opened/closed in accordance with the rolling environment.

Therefore, the flow rate of the liquid agent 23 supplied from the liquid agent tank 22 via the liquid agent supply passage 44 is adjusted by controlling the opening/closing of the liquid agent flow rate control valve 36 in accordance with the rolling pressure environment detected by the rolling pressure environment detection means. Since the liquid agent 23 is mixed with the water 21 supplied from the water tank 20 to the sprinkling nozzles 24, 24 via the water introducing passage 40, the amount of the liquid agent 23 is adjusted according to the rolling compaction environment, A mixed solution having a concentration can be sprayed from the water spray nozzles 24, 24.

The rolling compaction environment detecting means includes a roller temperature sensor 70 that detects the temperatures of the compacting rollers 3f and 3r, and the ECU 80 determines that the temperature of the compacting rollers 3f and 3r detected by the roller temperature sensor 70 is the prescribed temperature T1. When determining the following, the liquid agent flow control valve 36 is controlled in the valve opening direction.

Therefore, when it is determined that the temperature of the compaction rollers 3f, 3r detected by the roller temperature sensor 70 is equal to or lower than the specified temperature T1, that is, the compaction roller temperature is low and the environment is such that asphalt is likely to adhere, the liquid agent flow control valve Since the valve 36 is controlled in the valve opening direction, the amount of the liquid agent 23 can be adjusted according to the temperature of the pressure rollers 3f and 3r, and the mixed liquid having an appropriate concentration can be sprayed from the water spray nozzles 24 and 24. ..

The rolling compaction environment detecting means includes a road surface temperature sensor 72 for detecting the temperature of the road surface 13, and the ECU 80 detects the temperatures of the compacting rollers 3f and 3r detected by the roller temperature sensor 70 and the road surface temperature sensor 72. When it is determined that the difference between the temperature of the road surface 13 and the temperature of the road surface 13 is larger than the predetermined temperature T2, the liquid agent flow rate control valve 36 is controlled in the valve opening direction.

Therefore, the difference between the temperature of the compaction rollers 3f and 3r detected by the roller temperature sensor 70 and the temperature of the road surface 13 detected by the road surface temperature sensor 72 is larger than the predetermined temperature T2, that is, the temperature of the compaction rollers 3f and 3r. When it is determined that the environment in which the asphalt is likely to adhere is large because the temperature difference between the road surface 13 and the road surface 13 is large, the liquid agent flow rate control valve 36 is controlled in the valve opening direction. The amount of the liquid agent 23 can be adjusted according to the temperature difference between the temperature of the road surface 13 and the temperature of the road surface 13, and the mixed liquid having an appropriate concentration can be sprayed from the water spray nozzles 24, 24.

The rolling compaction environment detecting means includes an operation panel 52 that allows the operator to input the type of asphalt laid on the road surface 13, and the ECU 80 inputs the operation panel 52 to detect the asphalt laid on the road surface 13. The liquid agent flow control valve 36 is controlled to open and close according to the type.

Therefore, since the operator controls the liquid agent flow rate control valve 36 to open and close according to the type of asphalt laid on the road surface 13 input to the operation panel 52, the concentration of the liquid agent 23 in the mixed liquid is adjusted. The amount of the liquid agent 23 can be adjusted according to the type of asphalt, and the mixed liquid having an appropriate concentration can be sprayed from the water spray nozzles 24, 24.

Further, the compaction environment detecting means includes an operation panel 52 that allows the operator to input the type of the liquid agent 23 stored in the liquid agent tank 22, and the ECU 80 stores in the liquid agent tank 22 detected by the operation panel 52. The liquid agent flow rate control valve 36 is controlled to be opened/closed according to the type of the liquid agent 23.

Therefore, the concentration of the liquid agent 23 in the mixed liquid is adjusted by controlling the opening and closing of the liquid agent flow rate control valve 36 according to the type of the liquid agent 23 stored in the liquid agent tank 22 input to the operation panel 52 by the operator's intention. Therefore, the amount of the liquid agent 23 can be adjusted according to the type of the liquid agent 23 stored in the liquid agent tank 22, and the mixed liquid having an appropriate concentration can be sprayed from the water spray nozzles 24, 24.

The rolling compaction environment detection means includes a rolling compaction management unit 11 that detects the number of rolling compactions N at each location of the pavement construction road surface 13, and the ECU 80 causes the rolling compaction at each location of the pavement construction road surface 13 detected by the rolling compaction management unit 11. When it is determined that the number of times N is 2 times or less, the liquid agent flow rate control valve 36 is controlled in the valve opening direction.

Therefore, in the environment where the number N of times of rolling of the pavement construction road surface 13 detected by the rolling compaction management unit 11 is 2 times or less, that is, the number of times N of rolling is small, the asphalt is soft and easily attached to the rolling rollers 3f, 3r. When it is determined that there is, the liquid agent flow rate control valve 36 is controlled in the valve opening direction. Therefore, the amount of the liquid agent 23 is adjusted according to the number N of times of compaction, and the mixed liquid having an appropriate concentration is sprayed by the water spray nozzles 24, 24. Can be sprayed from.

<Second Embodiment>
The second embodiment will be described below with reference to FIGS. 6 to 8.
It should be noted that the description of the configuration common to the first embodiment will be omitted, and only the portions different from the first embodiment will be described here.
Referring to FIG. 6, a distribution path of the water 21 and the liquid agent 23 of the water sprinkling unit 109 according to the second embodiment is shown in a block diagram.

The difference from the first embodiment is that a water flow rate control valve (second flow rate adjustment valve) 136 is provided downstream of the water pump 30 in the water introduction path 40, and the liquid agent supply path 144 is downstream from the water flow rate control valve 136. It is located on the upstream side of the water shutoff valve 32.
The water flow rate control valve 136 adjusts the flow rate of the water 21 supplied to the water amount adjustment unit 26, similarly to the liquid agent flow rate control valve 36. That is, when the water pump 30 operates, the flow rate of the water 21 supplied to the water amount adjusting unit 26 through the water introducing passage 40 is adjusted by the water flow control valve 136, and the water is supplied from the liquid agent supplying passage 144 to the water introducing passage 40. The liquid agent 23 to be mixed is mixed upstream of the water shutoff valve 32.

Referring to FIG. 7, a connection configuration of the ECU 80 for controlling the tire roller 1 according to the second embodiment is shown in a block diagram.
The difference from the first embodiment is that the water flow control valve 136 is electrically connected to the output side of the ECU 80. That is, the flow rate of the water 21 can be adjusted by controlling the water flow rate control valve 136.

Referring to FIG. 8, a flow chart shows a routine of a control procedure of the tire roller 1 which is executed by the ECU 80 according to the second embodiment.
The difference from the first embodiment is that after step S12, the process moves to step S113 to set the opening degree of the water flow rate control valve 136 to 100% (fully open), and after step S14 or step S16, step S18. Before moving to step S117, it is determined whether the pressure roller temperature is higher than the set temperature T3 by moving to step S117. When it is determined that the temperature is lower than the set temperature T3, the process moves to step S119 and the water flow control valve 136 is opened. The point is that the degree is reduced by 10% from the fully open state. The set temperature T3 is lower than the specified temperature T1.

Specifically, in step S113, the opening degree of the water flow rate control valve 136 is set to 100% similarly to the case where the liquid agent flow rate control valve 36 is opened with the first opening degree D1 in step S12, and the process proceeds to step S14. Further, in step S117, it is determined whether or not the temperature of the compaction roller 3r is equal to or lower than the set temperature T3. When it is determined that the temperature of the compaction roller 3r detected by the roller temperature sensor 70 is equal to or lower than the set temperature T3, the process proceeds to step S119, and the water flow rate control valve 136 is closed by 10% from the current opening degree, in other words, water. The opening degree of the flow control valve 136 is set to 90%, and the process proceeds to step S20. When it is determined that the temperature of the compaction roller 3r detected by the roller temperature sensor 70 is higher than the set temperature T3, the process proceeds to step S18.
As a result, in step S119, the opening of the water flow rate control valve 136 is set to 90% to reduce the amount of the water 21, thereby reducing the heat taken by the water 21 by the pressure rollers 3f and 3r, and causing a swift rotation. The temperature of the pressure rollers 3f, 3r can be raised.

As described above, in the compaction machine according to the second embodiment, the water flow rate control valve 136 controllable by the ECU 80 is provided so as to adjust the flow rate of the water 21 supplied from the water tank 20 to the water spray nozzles 24, 24. I have more.
Therefore, the flow rate of the water 21 supplied from the water tank 20 to the sprinkling nozzles 24, 24 can be adjusted by controlling the water flow control valve 136 by the ECU 80, so that the water 21 in the water tank 20 can be saved and, for example, the water can be saved. The concentration of the liquid agent 23 can be increased by reducing the amount of 21.

The description of the compacting machine according to the present invention has been finished above, but the present invention is not limited to the above-described embodiment, and can be modified within the scope of the gist of the invention.
For example, in the present embodiment, the roller temperature sensor 70 and the road surface temperature sensor 72 are used to detect the temperatures of the compaction roller 3r and the road surface 13. However, the operator uses the operation panel 52 to detect the temperature of the compaction roller 3r and the road surface 13. May be input.

Further, in the present embodiment, the description has been given using the water 21 as the second liquid, but instead of the water 21, a liquid agent of a type different from the liquid agent 23 may be used.

1 Tire roller (rolling machine)
3f, 3r Rolling roller 5 Body 11 Rolling management unit (rolling environment detection means, rolling management unit)
13 Road surface 20 Water tank (2nd tank)
21 Water (2nd liquid)
22 Liquid agent tank (first tank)
23 Liquid (1st liquid)
24 Sprinkling nozzle (spraying device)
36 Liquid agent flow rate control valve (first flow rate adjustment valve)
40 Water introduction path (second supply path)
44 Liquid agent supply path (first supply path)
52 Operation panel (rolling compaction environment detection means, asphalt type setting unit, liquid agent type setting unit)
70 Roller temperature sensor (rolling compaction environment detecting means)
72 Road surface temperature sensor (rolling compaction environment detection means)
80 ECU (control unit)
136 Water flow control valve (second flow control valve)

Claims (6)

A first tank capable of storing the first liquid;
A second tank capable of storing the second liquid;
Rolling rollers provided before and after the machine,
A spraying device provided at a position where the first liquid and the second liquid can be sprayed on the pressure roller;
A second supply path for connecting the second liquid from the second tank to the spraying device;
A first supply path connecting the first liquid to the second supply path so that the first liquid can be supplied from the first tank;
A water stop valve capable of spraying or stopping a mixed liquid of the first liquid and the second liquid from the spraying device to the pressure roller;
A first flow rate adjusting valve for adjusting a flow rate of the first liquid supplied from the first supply path to the second supply path;
A compaction environment detecting means for detecting compaction environment,
A control device capable of controlling the first flow rate adjusting valve,
The compaction environment detection means,
A roller temperature sensor for detecting the temperature of the pressure roller,
A road surface temperature sensor for detecting the temperature of the road surface,
When the controller determines that the difference between the temperature of the compaction roller detected by the roller temperature sensor and the temperature of the road surface detected by the road surface temperature sensor is larger than a predetermined temperature, the first flow rate adjustment is performed. A valve for controlling the valve opening direction to increase the amount of the first liquid mixed with the second liquid, and controlling the water shutoff valve for spraying the mixed liquid of the first liquid and the second liquid. Pressure machine. Prior Symbol controller, when the temperature of the compaction roller detected by the roller temperature sensor is determined to below a specified temperature, and controls the first flow rate regulation valve in the opening direction, the rolling according to claim 1 Pressure machine. The compaction environment detection means includes asphalt type setting unit capable of inputting the type of asphalt laid on the road surface with the intention of the operator,
The rolling machine according to claim 1, wherein the control device controls opening and closing of the first flow rate adjusting valve according to a type of asphalt laid on the road surface set by the asphalt type setting unit. The compaction environment detection means includes a possible liquid agent type setting unit inputs a type of the first liquid stored in the first tank will of the operator,
The transfer device according to claim 1, wherein the control device controls the opening and closing of the first flow rate adjusting valve according to the type of the first liquid stored in the first tank set by the liquid type setting unit. Pressure machine. The rolling compaction environment detection means includes a rolling compaction management unit that detects the number of compaction rolls at various locations on the pavement road surface,
The said control apparatus controls the said 1st flow regulating valve to a valve opening direction, when the number of times of rolling pressure of each place of the pavement construction road surface detected by the said rolling compaction management part determines with a fixed number of times or less. Compaction machine. The rolling machine according to claim 1, further comprising a second flow rate adjusting valve that is controllable by the control device and adjusts a flow rate of the second liquid supplied from the second tank to the spraying device.

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