CN101716802A - Mixing drum constant speed control system, constant speed stirring carrier vehicle and electronic-controlled engine thereof - Google Patents
Mixing drum constant speed control system, constant speed stirring carrier vehicle and electronic-controlled engine thereof Download PDFInfo
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- CN101716802A CN101716802A CN200810200954A CN200810200954A CN101716802A CN 101716802 A CN101716802 A CN 101716802A CN 200810200954 A CN200810200954 A CN 200810200954A CN 200810200954 A CN200810200954 A CN 200810200954A CN 101716802 A CN101716802 A CN 101716802A
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Abstract
The invention discloses a mixing drum constant speed control system, a stirring carrier vehicle using the system and an electronic-controlled engine which combines the controller of the mixing drum constant speed control system with the engine controller. The purpose of the invention is to keep the rotate speed of the mixing drum in a necessary and constant low rotate speed so as to realize the advantages of energy-saving and the like. The key point of the scheme in that the existing rotate speed signal of the electronic-controlled engine is used to match with the electrical signal of the displacement of the electronic-controlled volume adjustable hydraulic pump so that the constant flow can be realized and the rotate speed of the mixing drum can not fluctuate along with the rotate speed of the engine which is needed to change.
Description
Technical field
The present invention relates to a kind of mixing drum constant speed control system, use the agitator truck of this system, and the electric-control motor that the controller in the mixing drum constant speed control system and engine controller are united two into one.Foregoing invention can be used for the association area of concrete mixer truck.
Background technology
The mixing drum of agitator truck is not in transit if corresponding speed change has positive effect with the rotating speed of engine.If keep mixing drum to stir the low speed of required necessity, both conserve energy greatly guarantees to stir necessity of material again and rational mixing quality has also prolonged equipment life etc.This just need carry out the technology of constant speed control to the agitator truck mixing drum.
Summary of the invention
Purpose of the present invention, but be to propose a kind of solution of the mixing drum constant speed running that makes agitator truck of economy.
This solution is: a kind of mixing drum constant speed control system that is used for agitator truck.As power resources, by Engine driven Hydraulic Pump, the hydraulic pump pressure oil output links to each other and drives the hydraulic motor rotation by pipeline and hydraulic motor etc., through machine driving, drives the mixing drum rotation by the engine of transport vehicle for it.Be characterized in: its engine is the engine of automatically controlled speed, i.e. throttle capable telecommunications number control, and have the signal of telecommunication of expressing actual engine speed exportable; Its hydraulic pump is automatically controlled variable pump; And this system also comprises a controller, the actual engine speed signal that it is exported electric-control motor itself, according to the product that makes engine speed and variable pump discharge capacity is the relation of definite value or close value, provides corresponding control signal to automatically controlled variable pump.
Above-mentioned constant speed control system, wherein: the above-mentioned product of this controller is to adjust with two inputs of controller, and when an input had signal, this product increased, and when another input had signal, this product reduced.
This solution also comprises a kind of agitator truck, is characterized in: this transport vehicle uses above-mentioned constant speed control system.
This solution also comprises a kind of automatically controlled rotating speed engine, is characterized in: the controller of this engine and above-mentioned controller unite two into one.Be in the controller of engine itself, except the control logic of control engine, also solidified above-mentioned control logic to automatically controlled variable pump, and leave the output and the input of the correspondence of this automatically controlled variable pump of control, the tach signal that this input input engine speed sensor is defeated by, according to above-mentioned numerical relation, give automatically controlled variable pump by output output control signal.
The present invention adopts above technical scheme, has following tangible advantage and characteristics.
1,, realized the constant speed control of mixing drum with better simply composition assembly.When agitator truck according to road conditions, strengthen or when reducing throttle, low when high during the rotating speed of engine, but because the product of engine speed and variable pump discharge capacity remains unchanged, make mixing drum realize the constant speed rotation, make like this mixing drum kept reasonable necessity than the slow-speed of revolution, obtain interests such as obvious energy-saving effect.
2, owing to the tach signal that directly utilizes electric-control motor, and needn't be that mixing drum is installed speed probe specially, simplify link, save cost.
3, after long-term use, during the hydraulic volume decrease in efficiency, available adjustment product value compensates to make keeps necessary running speed.
4, when the controller of controller that adopts engine and constant speed control system unites two into one, save controller, further reduced cost.And because constant speed control system only needs the less resource of controller, less program internal memory, less output, input point, the controller of general engine has this allowance, so be economic solution.
Description of drawings
Fig. 1 is the system architecture schematic diagram of the embodiment of the invention
Fig. 2 is the terminal functional schematic of controller embodiment of the present invention
Fig. 3 is the input signal of an automatically controlled variable pump and the performance plot of pumpage corresponding relation
The system architecture schematic diagram that Fig. 4 unites two into one for engine controller among the present invention and constant velocity system controller
The specific embodiment
Referring to Fig. 1, conduit under fluid pressure 4, mechanical driving device 5, mixing drum 6 and controller 7. that the mixing drum constant speed control system of agitator truck of the present invention comprises electric-control motor 1, automatically controlled volume adjustable hydraulic pump 2, hydraulic motor 3, hydraulic pump is linked to each other with hydraulic motor
Electric-control motor 1 links to each other with automatically controlled volume adjustable hydraulic pump 2 and drives its rotation, by the conduit under fluid pressure 4 that links to each other pressure oil is flowed to hydraulic motor 3, and drive its rotation, the mechanical driving device 5 that fluid motor-driven is attached thereto (normally decelerator), mechanical driving device is with certain speed ratio, with rotating speed and torque conversion, drive the mixing drum rotation.
Controller 7 receives the actual speed signal that electric-control motor provides, and gives automatically controlled variable pump output control signal, controls its discharge capacity.
Referring to Fig. 2, be the terminal functional schematic of controller one embodiment of the present invention.The common available singlechip chip of this controller or be that core is made with it." V+ ", " V-" end is the controller power source end." INS " reaches " IN is synchronous " with " INO " is one group of input signal cable, links to each other with this electric-control motor electrical interface, accepts the signal of telecommunication of its rotating speed of sign of engine output.The data signal that can be serial (is determined according to the actual signal output mode of engine.Can bus for example)." OutS " and " OutO " are one group of output signals, link to each other with the control signal input of automatically controlled variable pump, and signal can be a pulse width modulation mode." constant speed/non-constant speed " end is input, and its high/low level is used to select mixing drum to be in constant speed state or non-constant speed state.When being in non-constant speed state, changing the rotating speed of mixing drum and turn to by " long-pending+" end, " long-pending-" end.When being in constant speed state, can be by the setting of " adjustment " end with the coincidence AND signal correction constant speed of one of " long-pending+" or " long-pending-" end." adjustment " end can be not interposing at control panel, is for only use when adjusting.And when entering the initial state of non-constant speed state, it is 0. to handle the rotating speed of mixing drum by action button control " long-pending+" or " long-pending-" that the control signal to pump that controller sends makes the initial value of the rotating speed of mixing drum.
Should be pointed out that schematic diagram shown in Figure 1 has omitted the actual link of the slippage pump of closed type hydraulic system etc., only for the cardinal principle that relates to is described, automatically controlled variable pump also is not limited to closed system simultaneously, and open system can be finished above-mentioned task equally.Therefore, claim is not limit by this.
Input, output signal that controller adopts are pulse signal, are one of optional modes.When controller has D/A, A/D mouth, the usable level signal, therefore, claim is not limited to present embodiment.
Simultaneously, having needs, and controller also can be established main control panel and from control panel, implement control respectively in driver's cabin or other place that needs of transport vehicle.
Necessary low speed (for example 2r/m) should use following formula to set up or approximate the establishment for the speed that makes the mixing drum operation remains on rationally:
n
Send out* D
P* η
V1* η
V2÷ D
m÷ i=2 (r/m)
" n wherein
Send out" be engine speed (r/m), " D
P" be pumpage (cc/r), " η
V1" be pump volumetric efficiency, " η
V2" be the motor volumetric efficiency, " D
m" be motor displacement (cc/r), " i " is the mechanical driving device speed reducing ratio.
So,
Wherein, " n
Send out" change, all the other parameters all are the basic amounts of determining.
Try to achieve " D
P" after, referring to Fig. 3. this is the performance plot of the corresponding relation of an automatically controlled pump input electrical signal and discharge capacity.Can get the input electrical signal of (or calculate and to obtain) pump correspondence thus, can supply with it by the output of controller thus.
Adopt the agitator truck of above-mentioned controller, the gearbox that is driven transport vehicle by engine simultaneously also drives hydraulic pump by the power taking mouth of engine, when road conditions and other physical condition according to transportation, when the driver uses the engine throttle control rotating speed, the flow that controller is regulated pump automatically makes the maintenance substantially constant, so that drum speed is kept is constant.
Referring to Fig. 4, in this schematic diagram, engine controller 1.a unites two into one the function of Fig. 1 middle controller 7.A promptly not ad hoc constant speed controller.Because common electric-control motor, it has been its necessary part that its controller, controller power source, engine speed sensor and line thereof and controller read in, handle relevant soft, hardware such as the program of tach signal and register.After uniting two into one, just avoid the setting and the processing that repeat, reduced link, realized saving.
And the controller of constant speed control system is except above-mentioned soft, hardware, and other resource that takies (input, output, program) is less, and is general, and the reasonable distribution resource just can not increase the hardware cost of engine controller.Therefore say that on the whole system is simpler, line is few, cost is low, has economic implications.
Claims (4)
1. mixing drum constant speed control system that is used for agitator truck.As power resources, by Engine driven Hydraulic Pump, the hydraulic pump pressure oil output drives the hydraulic motor rotation, through machine driving, drives the mixing drum rotation by the engine of transport vehicle for it.It is characterized in that its engine is the engine of automatically controlled speed, i.e. throttle capable telecommunications number control, and have the signal of telecommunication of expressing actual engine speed exportable; Its hydraulic pump is automatically controlled volume adjustable hydraulic pump; And this system also comprises a controller, the actual engine speed signal that it is exported electric-control motor itself, according to the product that makes engine speed and variable pump discharge capacity is the relation of definite value or close value, provides corresponding control signal to automatically controlled variable pump.
2. constant speed control system as claimed in claim 1 is characterized in that, wherein the above-mentioned product of this controller is to adjust with two inputs of controller, and when an input had signal, this product increased, and when another input had signal, this product reduced.
3. an agitator truck is characterized in that, this transport vehicle uses the described constant speed control system of claim 1.
4. an automatically controlled rotating speed engine is characterized in that, the described controller of the controller of this engine and claim 1 unites two into one.Be in the controller of engine itself, except the control logic of control engine, also solidified the described control logic of claim 1 to automatically controlled volume adjustable hydraulic pump, and leave the output and the input of the correspondence of this automatically controlled volume adjustable hydraulic pump of control, this input, read in the tach signal that engine speed sensor is defeated by, relation according to claim 1 is given automatically controlled variable pump by output output control signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810200954A CN101716802A (en) | 2008-10-09 | 2008-10-09 | Mixing drum constant speed control system, constant speed stirring carrier vehicle and electronic-controlled engine thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810200954A CN101716802A (en) | 2008-10-09 | 2008-10-09 | Mixing drum constant speed control system, constant speed stirring carrier vehicle and electronic-controlled engine thereof |
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| CN101716802A true CN101716802A (en) | 2010-06-02 |
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| CN200810200954A Pending CN101716802A (en) | 2008-10-09 | 2008-10-09 | Mixing drum constant speed control system, constant speed stirring carrier vehicle and electronic-controlled engine thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011029330A1 (en) * | 2009-09-11 | 2011-03-17 | 湖南三一智能控制设备有限公司 | Constant-speed control device for mixer truck, mixer truck using the same and method for controlling drum to rotate at constant speed |
| CN102126429A (en) * | 2011-01-26 | 2011-07-20 | 江苏嘉捷特种车辆制造有限公司 | Special self-propelled chassis for airport |
| CN102205559A (en) * | 2010-11-09 | 2011-10-05 | 江苏卡威专用汽车制造有限公司 | Device for controlling constant rotating speed of mixing cylinder of concrete mixer truck |
| CN102794823A (en) * | 2012-08-24 | 2012-11-28 | 西安智源电气有限公司 | Constant speed control system of concrete mixing and transporting vehicle |
| CN103481373A (en) * | 2012-06-14 | 2014-01-01 | 中集车辆（集团）有限公司 | Concrete mixing truck, and control apparatus and control method thereof |
| CN103732369A (en) * | 2011-09-02 | 2014-04-16 | 萱场工业株式会社 | Concrete mixer truck |
-
2008
- 2008-10-09 CN CN200810200954A patent/CN101716802A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011029330A1 (en) * | 2009-09-11 | 2011-03-17 | 湖南三一智能控制设备有限公司 | Constant-speed control device for mixer truck, mixer truck using the same and method for controlling drum to rotate at constant speed |
| CN102205559A (en) * | 2010-11-09 | 2011-10-05 | 江苏卡威专用汽车制造有限公司 | Device for controlling constant rotating speed of mixing cylinder of concrete mixer truck |
| CN102126429A (en) * | 2011-01-26 | 2011-07-20 | 江苏嘉捷特种车辆制造有限公司 | Special self-propelled chassis for airport |
| CN103732369A (en) * | 2011-09-02 | 2014-04-16 | 萱场工业株式会社 | Concrete mixer truck |
| CN103732369B (en) * | 2011-09-02 | 2015-12-23 | 萱场工业株式会社 | Truck mixer |
| CN103481373A (en) * | 2012-06-14 | 2014-01-01 | 中集车辆（集团）有限公司 | Concrete mixing truck, and control apparatus and control method thereof |
| CN102794823A (en) * | 2012-08-24 | 2012-11-28 | 西安智源电气有限公司 | Constant speed control system of concrete mixing and transporting vehicle |
| CN102794823B (en) * | 2012-08-24 | 2014-10-29 | 西安智源电气有限公司 | Constant speed control system of concrete mixing and transporting vehicle |
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Application publication date: 20100602 |