WO2016076181A1 - ミキサ車及び生コンクリートの温度推定方法 - Google Patents
ミキサ車及び生コンクリートの温度推定方法 Download PDFInfo
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- WO2016076181A1 WO2016076181A1 PCT/JP2015/081083 JP2015081083W WO2016076181A1 WO 2016076181 A1 WO2016076181 A1 WO 2016076181A1 JP 2015081083 W JP2015081083 W JP 2015081083W WO 2016076181 A1 WO2016076181 A1 WO 2016076181A1
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- WIPO (PCT)
- Prior art keywords
- ready
- temperature
- mixer
- mixed concrete
- mixer drum
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/42—Apparatus specially adapted for being mounted on vehicles with provision for mixing during transport
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
- B60P3/00—Vehicles adapted to transport, to carry or to comprise special loads or objects
- B60P3/16—Vehicles adapted to transport, to carry or to comprise special loads or objects for carrying mixed concrete, e.g. having rotatable drums
Definitions
- the present invention relates to a mixer vehicle and a temperature estimation method for ready-mixed concrete.
- JP2011-129014A discloses a ready-mixed concrete management system using a wireless IC tag to which an ID number for information identification is assigned for each transport lot from a kneading place to a placement place.
- the wireless IC tag has a temperature measurement function for ready-mixed concrete.
- the temperature of ready-mixed concrete is measured using a contact temperature sensor such as a thermocouple or a non-contact temperature sensor such as a radiation thermometer.
- the server computer receives the information from the wireless IC tag and records the time and temperature information from training to completion of placement.
- thermocouple When a contact-type temperature sensor such as a thermocouple is used to measure the temperature of ready-mixed concrete, the operator must insert the temperature sensor into the ready-mixed concrete loaded on the ready-mixed concrete transport vehicle. There is a problem that it takes time and effort.
- the object of the present invention is to enable the temperature of ready-mixed concrete to be managed by a simple method.
- a mixer truck includes a mixer drum on which ready-mixed concrete is mounted, a drive time measuring unit that measures a drive time in which the mixer drum is driven with ready-mixed concrete, and estimates a surface temperature of the mixer drum.
- a method for estimating the temperature of ready-mixed concrete mounted on a mixer drum measures a driving time during which the mixer drum is driven by mounting ready-mixed concrete, and estimates the surface temperature of the mixer drum. And estimating the temperature of the ready-mixed concrete mounted in the mixer drum based on the measured driving time of the mixer drum and the estimated surface temperature of the mixer drum.
- FIG. 1A is a plan view of a mixer truck according to an embodiment of the present invention.
- FIG. 1B is a side view of the mixer truck.
- FIG. 2 is a block diagram showing the configuration of the mixer truck.
- the mixer vehicle 100 is a vehicle including a cab 11 and a gantry 1.
- the mixer vehicle 100 includes a mixer drum 2 that is mounted on the gantry 1 and can be loaded with ready-mixed concrete, a drive device 4 that rotationally drives the mixer drum 2, and a drum drive controller 10 that controls the rotation of the mixer drum 2.
- the mixer truck 100 carries the ready-mixed concrete in the mixer drum 2 and carries it.
- illustration of the drive device 4 etc. is abbreviate
- the mixer drum 2 is a bottomed cylindrical container that is rotatably mounted on the gantry 1 and has an opening 2A at its rear end.
- the mixer drum 2 is mounted with an inclination so that the rotation axis O gradually increases from the front to the rear of the vehicle.
- a hopper 16 is provided at the upper rear portion of the opening 2A of the mixer drum 2. Ready-mixed concrete introduced from a kneading place such as a ready-mixed concrete production plant is guided by the hopper 16 to the opening 2A.
- a flow guide 17 and a chute 18 are provided in the lower rear part of the opening 2 ⁇ / b> A of the mixer drum 2. The ready-mixed concrete discharged from the opening 2 ⁇ / b> A is guided by the flow guide 17 and the chute 18.
- the mixer drum 2 is rotationally driven by the driving device 4 at different speeds in the forward direction and the reverse direction.
- the driving device 4 uses the traveling engine 3 mounted on the mixer vehicle 100 as a power source, and rotationally drives the mixer drum 2 by the fluid pressure of the working fluid.
- ready-mixed concrete is made by kneading concrete materials such as cement, aggregate, and water with a mixer.
- the mixer truck 100 transports the ready-mixed concrete put into the mixer drum 2 at the kneading location to the placement location.
- the driving device 4 rotates the mixer drum 2 in the forward direction to stir the ready-mixed concrete.
- the driving device 4 drives the mixer drum 2 to rotate in the reverse direction. Thereby, the ready-mixed concrete is discharged from the mixer drum 2 and placed.
- the surface temperature of the mixer drum 2 rises when the outside air temperature is high and the amount of solar radiation is large, such as in summer, and the temperature of the ready-mixed concrete in the mixer drum 2 is increased by heat transfer from the mixer drum 2. May rise gradually.
- the temperature of ready-mixed concrete changes greatly, the properties of ready-mixed concrete change.
- the mixer vehicle 100 is provided with a temperature management device 20 that manages the drive time A during which the mixer drum 2 is driven with the ready-mixed concrete and the temperature C of the ready-mixed concrete installed in the mixer drum 2. It is done.
- the temperature management device 20 includes a communication device 31 that transmits and receives information related to the ready-mixed concrete, an outside air temperature detector 35 that detects the outside air temperature, and a solar radiation amount detection unit that detects the amount of solar radiation. 36, a temperature management controller 21 that estimates the temperature C of the ready-mixed concrete based on these information and detection signals, a display unit 37 that displays the temperature C of the ready-mixed concrete according to the driving time A and time of the mixer drum 2, Is provided.
- the following information regarding the ready-mixed concrete is transmitted to the temperature management controller 21 via the communication device 31 from a management device (not shown) provided at the kneading place.
- the A charging time A1 at the end of charging when the charging of the ready-mixed concrete to the mixer drum 2 is completed at the kneading place.
- the temperature management controller 21 Based on the signal received by the communication device 31, the temperature management controller 21 inputs a loading time input unit 22 that inputs a loading time A 1, a loading amount input unit 23 that inputs a loading amount F, and an initial time that inputs an initial temperature G. And a temperature input unit 24.
- the temperature management controller 21 includes a drive time measuring unit 25 that measures the drive time A when the mixer drum 2 is driven with ready-mixed concrete.
- the driving time measuring unit 25 starts measuring the driving time A based on the charging time A1 sent from the charging time input unit 22.
- the drive time measuring unit 25 ends the measurement of the drive time A with the discharge end time A2 when the mixer drum 2 is rotationally driven in the reverse direction based on the signal sent from the drum drive controller 10 to finish the discharge of the ready-mixed concrete.
- Time That is, the drive time measuring unit 25 starts measuring the drive time A as the charging of the ready-mixed concrete into the mixer drum 2 is completed, and the drive time A is increased as the discharge of the ready-mixed concrete from the mixer drum 2 is completed. End measurement.
- the drive time measuring unit 25 is not limited to the above-described configuration, and starts to measure the drive time A by a switch operation by the driver, and ends the measurement of the drive time A by a switch operation by the driver. May be.
- the outside air temperature detector 35 is attached to the mixer vehicle 100.
- the outside air temperature detector 35 converts a change in electrical resistance due to, for example, a thermocouple into an electric signal, and measures the outside air temperature D (° C.).
- the solar radiation amount detection unit 36 is attached to the mixer vehicle 100.
- the solar radiation amount detection unit 36 converts the solar radiation amount into an electric signal using, for example, a photoelectric element or a thermopile, and calculates the amount of radiant energy received from the sun per unit area by the photoelectric element or thermopile per unit area. Measured as kilowatts per square meter).
- the drum surface temperature estimation unit 26 obtains the surface temperature B of the mixer drum 2 based on a map using the outside air temperature D and the solar radiation amount E as parameters.
- the drum surface temperature estimation unit 26 stores a map (not shown) in which the relationship between the outside air temperature D, the amount of solar radiation E, and the surface temperature B of the mixer drum 2 is set. This relationship is obtained by experiment or simulation. Based on this map, the surface temperature B of the mixer drum 2 that increases according to the outside air temperature D and the amount of solar radiation E is accurately estimated.
- the drum surface temperature estimation unit 26 is not limited to the above-described configuration, and obtains the surface temperature B of the mixer drum 2 based on a map using the detected outside air temperature D as a parameter, and the obtained surface temperature B is used as the solar radiation amount E. It may be configured to correct based on
- the drum surface temperature estimation unit 26 obtains the surface temperature B of the mixer drum 2 based on the map using the calculated amount of solar radiation E as a parameter, and corrects the obtained surface temperature B based on the outside air temperature D. It may be configured.
- the ready-mixed concrete temperature estimation unit 27 estimates the loading amount F of ready-mixed concrete put into the mixer drum 2, the initial temperature G of ready-mixed concrete put into the mixer drum 2, and the driving time A of the measured mixer drum 2. Based on the surface temperature B of the mixer drum 2, the temperature C of the ready-mixed concrete mounted in the mixer drum 2 is estimated.
- the temperature of the ready-mixed concrete mounted in the mixer drum 2 is raised by reaction heat generated by a chemical reaction, and the temperature of the ready-mixed concrete is raised and lowered by heat received from the mixer drum 2.
- the ready-mixed concrete temperature estimation unit 27 estimates the temperature C of ready-mixed concrete based on the amount of reaction heat generated according to the driving time A of the mixer drum 2 and the amount of heat received according to the surface temperature B of the mixer drum 2. Specifically, the temperature of the ready-mixed concrete is estimated so that the higher the initial temperature G of the ready-mixed concrete, the smaller the degree of increase in the temperature of the ready-mixed concrete due to the heat received from the mixer drum 2. Estimate C.
- the ready-mixed concrete temperature estimation unit 27 estimates the temperature C of ready-mixed concrete corresponding to the fact that the degree of increase in the ready-mixed concrete temperature due to the heat received from the mixer drum 2 decreases as the loading amount F of ready-mixed concrete increases. To do.
- the display unit 37 provided in the cab 11 displays a graph or the like showing a change in the temperature C of the ready-mixed concrete according to the driving time A of the mixer drum 2. Thereby, the driver looks at a graph showing a change in the temperature C of the ready-mixed concrete according to the driving time A of the mixer drum 2 and manages the time until the ready-mixed concrete is discharged and placed. be able to.
- the temperature management device 20 may transmit information relating to ready-mixed concrete to a server computer (not shown) via the communication device 31 and an information line network such as the Internet. Thereby, the change of the temperature C of the ready-mixed concrete according to the drive time A of the mixer drum 2 can be recorded on a server computer.
- the temperature management controller 21 of the mixer vehicle 100 includes a driving time measuring unit 25 that measures a driving time A in which the mixer drum 2 is driven by loading the ready-mixed concrete, and a drum surface temperature estimating unit 26 that estimates the surface temperature B of the mixer drum 2. And a ready concrete temperature estimating unit 27 for estimating a temperature C of the ready-mixed concrete mounted in the mixer drum 2 based on the measured driving time A of the mixer drum 2 and the estimated surface temperature B of the mixer drum 2. .
- the method for estimating the temperature of ready-mixed concrete includes measuring a drive time A during which the mixer drum 2 is driven by loading ready-mixed concrete, estimating a surface temperature B of the mixer drum 2, and driving the measured mixer drum 2. Estimating the temperature C of the ready-mixed concrete mounted in the mixer drum 2 based on the time A and the estimated surface temperature B of the mixer drum 2.
- the temperature C of the ready-mixed concrete mounted in the mixer drum 2 is estimated based on the measured value A of the driving time of the mixer drum 2 and the estimated value B of the surface temperature of the mixer drum 2.
- the temperature of ready-mixed concrete can be obtained without using a contact-type temperature sensor to be inserted or a non-contact-type temperature sensor installed so as to face the mixer drum 2. Therefore, the temperature of ready-mixed concrete can be managed by a simple method.
- the temperature management device 20 of the mixer vehicle 100 includes an outside air temperature detector 35 that detects the outside air temperature D.
- the drum surface temperature estimation unit 26 estimates the surface temperature B of the mixer drum 2 based on the detected outside air temperature D.
- the surface temperature B of the mixer drum 2 that increases according to the outside air temperature D is accurately estimated.
- the temperature management device 20 of the mixer vehicle 100 includes a solar radiation amount detection unit 36 that detects the solar radiation amount E.
- the drum surface temperature estimation unit 26 estimates the surface temperature B of the mixer drum 2 based on the calculated solar radiation amount E.
- the surface temperature B of the mixer drum 2 that increases according to the amount of solar radiation E is accurately estimated.
- the temperature management device 20 of the mixer vehicle 100 includes a loading amount input unit 23 that inputs a loading amount F of ready-mixed concrete loaded on the mixer drum 2.
- the ready-mixed concrete temperature estimation unit 27 estimates the temperature C of ready-mixed concrete in the mixer drum 2 based on the loading amount F of ready-mixed concrete mounted on the mixer drum 2.
- the degree of increase in the temperature of the ready-mixed concrete due to the heat received from the mixer drum 2 decreases as the loading amount F of the ready-mixed concrete mounted on the mixer drum 2 increases.
- the temperature C is accurately estimated.
- the loading amount F of the ready-mixed concrete thrown into the mixer drum 2 is managed in the kneading
- the ready-mixed concrete temperature estimator 27 may be configured to estimate the ready-mixed concrete temperature C with a constant loading amount F.
- the temperature management device 20 of the mixer truck 100 includes an initial temperature input unit 24 that inputs an initial temperature G of ready-mixed concrete mounted on the mixer drum 2.
- the ready-mixed concrete temperature estimation unit 27 estimates the ready-mixed concrete temperature C in the mixer drum 2 on the basis of the input ready-mixed initial temperature G.
- the initial temperature G of the ready-mixed concrete put into the mixer drum 2 is managed to be substantially constant at the kneading place
- the initial temperature input unit 24 is not provided in the mixer truck 100 (temperature management device 20), and ready-mixed concrete is provided.
- the ready-mixed concrete temperature estimator 27 may be configured to estimate the ready-mixed concrete temperature C with the initial temperature G as a constant value.
- the drum surface temperature estimation unit 26 is configured to estimate the surface temperature B of the mixer drum 2 based on the detected outside air temperature D and the calculated amount of solar radiation E, but the detected outside air
- the surface temperature B of the mixer drum 2 may be estimated based on either the temperature D or the calculated amount of solar radiation E.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Structural Engineering (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Transportation (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
Abstract
Description
・混練場所にてミキサドラム2に生コンクリートの投入が終了した投入終了時の投入時間A1。
・混練場所にてミキサドラム2に投入された生コンクリートの搭載量F。
・混練場所にてミキサドラム2に投入された生コンクリートの初期温度G。
Claims (6)
- 生コンクリートを搭載するミキサドラムと、
前記ミキサドラムが生コンクリートを搭載して駆動される駆動時間を計測する駆動時間計測部と、
前記ミキサドラムの表面温度を推定するドラム表面温度推定部と、
前記ミキサドラムの駆動時間と前記ミキサドラムの表面温度とに基づいて前記ミキサドラム内に搭載される生コンクリートの温度を推定する生コンクリート温度推定部と、を備えるミキサ車。 - 請求項1に記載のミキサ車であって、
外気温度を検知する外気温度検知器を更に備え、
前記ドラム表面温度推定部は、前記外気温度検知器にて検知される外気温度に基づいて前記ミキサドラムの表面温度を推定するミキサ車。 - 請求項1または2に記載のミキサ車であって、
日射量を検知する日射量検知部を更に備え、
前記ドラム表面温度推定部は、前記日射量検知部にて算出される日射量に基づいて前記ミキサドラムの表面温度を推定するミキサ車。 - 請求項1から3のいずれか1項に記載のミキサ車であって、
前記ミキサドラムに搭載される生コンクリートの搭載量が入力される搭載量入力部を更に備え、
前記生コンクリート温度推定部は、前記ミキサドラムに搭載される生コンクリートの搭載量と前記駆動時間計測部にて計測される前記ミキサドラムの駆動時間と前記ドラム表面温度推定部にて推定される前記ミキサドラムの表面温度とに基づいてミキサドラム内の生コンクリートの温度を推定するミキサ車。 - 請求項1から3のいずれか1項に記載のミキサ車であって、
前記ミキサドラムに搭載される生コンクリートの初期温度が入力される初期温度入力部を更に備え、
前記生コンクリート温度推定部は、入力される生コンクリートの初期温度と前記駆動時間計測部にて計測される前記ミキサドラムの駆動時間と前記ドラム表面温度推定部にて推定される前記ミキサドラムの表面温度とに基づいてミキサドラム内の生コンクリートの温度を推定するミキサ車。 - ミキサドラムに搭載された生コンクリートの温度推定方法であって、
前記ミキサドラムが生コンクリートを搭載して駆動される駆動時間を計測することと、
前記ミキサドラムの表面温度を推定することと、
計測される前記ミキサドラムの駆動時間と推定される前記ミキサドラムの表面温度とに基づいて前記ミキサドラム内に搭載される生コンクリートの温度を推定することと、を備える生コンクリートの温度推定方法。
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2015347934A AU2015347934A1 (en) | 2014-11-11 | 2015-11-04 | Mixer truck and method for estimating temperature of ready-mix concrete |
| NZ731620A NZ731620A (en) | 2014-11-11 | 2015-11-04 | Mixer vehicle and method of estimating temperature of ready-mixed concrete |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014228961A JP2016088054A (ja) | 2014-11-11 | 2014-11-11 | ミキサ車及び生コンクリートの温度推定方法 |
| JP2014-228961 | 2014-11-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2016076181A1 true WO2016076181A1 (ja) | 2016-05-19 |
Family
ID=55954270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2015/081083 Ceased WO2016076181A1 (ja) | 2014-11-11 | 2015-11-04 | ミキサ車及び生コンクリートの温度推定方法 |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP2016088054A (ja) |
| AU (1) | AU2015347934A1 (ja) |
| NZ (1) | NZ731620A (ja) |
| WO (1) | WO2016076181A1 (ja) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5573508A (en) * | 1978-11-27 | 1980-06-03 | Kyokuto Kaihatsu Kogyo Co | Mixer car with loadage detector |
| JP2005186919A (ja) * | 2003-12-04 | 2005-07-14 | Keihin Corp | 車両用空調装置 |
| JP2008246816A (ja) * | 2007-03-30 | 2008-10-16 | Sumitomo Osaka Cement Co Ltd | 生コンクリート運搬用トラックアジテータのドラム温度調整方法、及び生コンクリート運搬用トラックアジテータのドラム温度調整装置 |
| JP2011140164A (ja) * | 2010-01-07 | 2011-07-21 | Hazama Corp | コンクリート管理方法及びシステム |
-
2014
- 2014-11-11 JP JP2014228961A patent/JP2016088054A/ja active Pending
-
2015
- 2015-11-04 NZ NZ731620A patent/NZ731620A/en not_active IP Right Cessation
- 2015-11-04 WO PCT/JP2015/081083 patent/WO2016076181A1/ja not_active Ceased
- 2015-11-04 AU AU2015347934A patent/AU2015347934A1/en not_active Abandoned
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5573508A (en) * | 1978-11-27 | 1980-06-03 | Kyokuto Kaihatsu Kogyo Co | Mixer car with loadage detector |
| JP2005186919A (ja) * | 2003-12-04 | 2005-07-14 | Keihin Corp | 車両用空調装置 |
| JP2008246816A (ja) * | 2007-03-30 | 2008-10-16 | Sumitomo Osaka Cement Co Ltd | 生コンクリート運搬用トラックアジテータのドラム温度調整方法、及び生コンクリート運搬用トラックアジテータのドラム温度調整装置 |
| JP2011140164A (ja) * | 2010-01-07 | 2011-07-21 | Hazama Corp | コンクリート管理方法及びシステム |
Also Published As
| Publication number | Publication date |
|---|---|
| AU2015347934A1 (en) | 2017-05-25 |
| JP2016088054A (ja) | 2016-05-23 |
| NZ731620A (en) | 2018-09-28 |
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