CN102828838A - Engineering machinery, energy-saving control device and method - Google Patents

Engineering machinery, energy-saving control device and method Download PDF

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Publication number
CN102828838A
CN102828838A CN2012103271311A CN201210327131A CN102828838A CN 102828838 A CN102828838 A CN 102828838A CN 2012103271311 A CN2012103271311 A CN 2012103271311A CN 201210327131 A CN201210327131 A CN 201210327131A CN 102828838 A CN102828838 A CN 102828838A
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signal
flame
controller
condition
output unit
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CN102828838B (en
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李胜华
曾少林
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Sany Heavy Industry Co Ltd
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Sany Heavy Industry Co Ltd
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Abstract

The invention discloses engineering machinery, an energy-saving control device and an energy-saving control method, wherein the energy-saving control device comprises a controller and a rotation speed sensor, wherein the rotation speed sensor is installed on an engine of the engineering machinery and is used for obtaining a rotation speed signal of the engine; the controller is connected with the rotation speed sensor and is used for receiving the rotation speed signal; the controller is further connected with an operating handle and an action switch of the engineering machinery and is used for obtaining an operating handle signal and an action switch signal; the controller is further used for judging whether the engineering machinery meets an engine flame-out condition according to the rotation speed signal, the operating handle signal and the action switch signal, and for transmitting a flame-out signal when the flame-out condition is met. With the adoption of the device, the working condition of a crane is judged according to the rotation speed signal, the operating handle signal and the action switch signal, and the engine is controlled to flame out when the condition is met, so that not only is the energy saved, but also the malfunction which is probably to be caused when non-operating personnel enter a control room is prevented, so that the security is improved.

Description

Engineering machinery, energy-saving control device and method
Technical field
The present invention relates to engineering machinery field, particularly a kind of engineering machinery, energy-saving control device and method.
Background technique
Along with developing rapidly of industrial technology, energy shortage and environmental pollution problem also are on the rise.Engineering machinery generally adopts motor to do work and drives hydraulic system; In the operation process; Generally control exercises by the operating personnel, because problems such as the intermittence of construction operation, operating personnel's operating habits, engineering machinery possibly be in non-job state for a long time; And this moment, motor was still in running order, still in fuel consumption.Though motor acting this moment is less, this moment, hoist was not done any action, and fuel consume all is used for flogging a dead horse, and not only wastes fuel oil, and effulent such as motor harmful gas also pollutes the environment, and did not meet energy conservation and environment protection.In addition, the operating personnel also possibly forget flame-out when the situation is critical, and if not the operating personnel possibly produce misoperation after getting into control cab, there is potential safety hazard in the engine long time when not flame-out.
Summary of the invention
In view of this, the present invention proposes a kind of engineering machinery, energy-saving control device and method, with wasting energy of solving that existing engineering machinery can not auto extinguishing causes, befouling environment and there is the problem of bigger potential safety hazard.
An aspect the invention provides a kind of engineering machinery and uses energy-saving control device, comprises controller and speed probe; Wherein, speed probe is installed on the motor of this project machinery, is used to obtain the tach signal of this motor; Controller is connected with speed probe, is used to receive tach signal; Controller also is connected with step switch with the operating grip of this project machinery, is used to obtain operating grip signal and step switch signal; Controller also is used for judging according to tach signal, operating grip signal and step switch signal whether this project machinery satisfies the engine misses condition, and when satisfying burn-out condition, sends flame-out signal.
Further, in the above-mentioned control gear, burn-out condition is: operating grip signal and step switch signal are zero, and tach signal is non-vanishing, and this state continuance first set time.
Further, above-mentioned control gear also comprises input-output unit; Wherein, Controller also is connected with input-output unit; Controller also is used for when this project machinery satisfies flame-out affirmation condition, sending flame-out affirming signal to input-output unit, and determines whether to send flame-out signal according to the feedback information situation of input-output unit; Flame-out affirmation condition is: operating grip signal and step switch signal are zero, and tach signal is non-vanishing, and this state has kept first set time.
Further, in the above-mentioned control gear, the condition that controller sends flame-out signal is: in second set time, controller receives the flame-out feedback signal of affirmation that input-output unit sends; Perhaps, greater than second set time time, controller does not receive any feedback signal that input-output unit sends; The condition that controller does not send flame-out signal is: in second set time, controller receives the not flame-out feedback signal that input-output unit sends.
Further, in the above-mentioned control gear, input-output unit is a display screen.
Further, in the above-mentioned control gear, be connected with switch between controller and the input-output unit.
This device is judged the working condition of hoist according to tach signal, operating grip signal and step switch signal; And automatically controlled engine is flame-out when satisfying condition; Not only practiced thrift the energy; And avoided non-operating personnel to get into issuable misoperation behind the control cab, improved Security.
On the other hand, the present invention also provides a kind of engineering machinery, and it is provided with above-mentioned any energy-saving control device.
Further, in the above-mentioned engineering machinery, engineering machinery is a hoist.
Because energy-saving control device has above-mentioned effect, also has the corresponding techniques effect so have the engineering machinery of this energy-saving control device.
Another aspect, the present invention also provides a kind of energy-saving control method, is used for engineering machinery, comprising: the rotating speed obtaining step, obtain the engine speed of said engineering machinery; The operation signal obtaining step obtains the operating grip signal and the step switch signal of said engineering machinery; Determining step judges according to said engine speed, operating grip signal and step switch signal whether this project machinery satisfies burn-out condition; Flame-out control step if satisfy burn-out condition, is then controlled the engine misses of this project machinery; If do not satisfy burn-out condition, then motor is not done any operation.
Further, in the above-mentioned controlling method, said determining step is specially: if said engine speed is greater than zero; And said operating grip signal and said step switch signal are equal to zero; And, this state continuance first set time, judge that then this motor satisfies burn-out condition.
Further; In the above-mentioned controlling method, said determining step comprises: first substep, if engine speed is greater than zero; And said operating grip signal and said step switch signal are equal to zero; And, this state continuance first set time, then send whether flame-out affirmation signal to input-output unit; Second substep if in second set time, receives the flame-out signal of confirming of input-output unit feedback; Perhaps; In greater than second set time, do not receive any signal of input-output unit feedback, judge that then this motor satisfies burn-out condition; If in second set time, receive the not flame-out signal of input-output unit feedback, judge that then this motor does not satisfy burn-out condition.
This method is judged the working condition of hoist according to tach signal, operating grip signal and step switch signal; And automatically controlled engine is flame-out when satisfying condition; Not only practiced thrift the energy; And avoided non-operating personnel to get into issuable misoperation behind the control cab, improved Security.
Description of drawings
The accompanying drawing that constitutes a part of the present invention is used to provide further understanding of the present invention, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, does not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is energy-saving control device embodiment's of the present invention first structured flowchart;
Fig. 2 is energy-saving control device embodiment's of the present invention second structured flowchart;
Fig. 3 is energy-saving control device embodiment's of the present invention the 3rd structured flowchart;
Fig. 4 is the structured flowchart of energy-saving control method first preferred embodiment of the present invention;
Fig. 5 is the structured flowchart of energy-saving control method second preferred embodiment of the present invention.
Embodiment
Need to prove that under the situation of not conflicting, embodiment and the characteristic among the embodiment among the present invention can make up each other.Below with reference to accompanying drawing and combine embodiment to specify the present invention.
Control gear embodiment:
Referring to Fig. 1, the preferred embodiment of energy-saving control device of the present invention has been shown among the figure.This control gear can be used for engineering machinery, is example with the hoist below, and it is further specified.As shown in the figure, this device comprises controller 100 and speed probe 400.
Can know that in conjunction with correlation technique operated by rotary motion has operating grip 200, step switch 300 and motor 700 on the hoist.Wherein, operating grip 200 generally is arranged in control cab seat both sides, can control actions such as shear leg lifts by crane through manipulation operations handle 200.Step switch 300 generally is arranged on the console of control cab, can carry out some less important works by Control Engineering machinery through control action switch 300, such as auxiliary and being connected of principal arm etc.
As shown in Figure 1, in the present embodiment, speed probe 400 is installed on the motor 700 of this project machinery, is used to obtain the tach signal of motor 700.Controller 100 is connected with speed probe 400, is used to receive the tach signal of motor 700.Controller 100 also is connected with step switch 300 with the operating grip 200 of this project machinery, is used to obtain the operation signal of operating grip 200 and step switch 300; Controller 100 also is used for judging according to tach signal, operating grip signal and step switch signal whether this project machinery satisfies the engine misses condition, and when satisfying burn-out condition, sends flame-out signal.
Present embodiment can be judged the working condition of hoist according to tach signal, operating grip signal and step switch signal; And automatically controlled engine is flame-out when satisfying condition; Not only practiced thrift the energy; And avoided non-operating personnel to get into issuable misoperation behind the control cab, improved Security.
Preferably, in the foregoing description, burn-out condition is: operating grip signal, step switch signal are zero, and tach signal is non-vanishing, and, this state continuance first set time.
Understand easily through above analysis, when operating grip 200 and step switch 300 are in reset mode simultaneously, when promptly being failure to actuate, the operation signal of operating grip 200 and step switch 300 is zero simultaneously; At this moment, operator do not control hoist and carry out operation.If this moment, controller 100 received the non-vanishing information of motor 700 rotating speeds, promptly motor 700 is in running order; And, the non-vanishing and operating grip of rotating speed 200 and step switch 300 first set time that has been zero state continuance simultaneously, then controller 100 can send the engine misses signal.
During specific operation, referring to Fig. 2, can be flame-out through flame-out actuator 600 control motors 700.Particularly, flame-out actuator 600 generally is arranged in the crane control cab electric control box, and controller 100 is connected with flame-out actuator 600; When flame-out actuator 600 receives flame-out signal; Its coil is connected, make contact, and control motor 700 is flame-out.Controller 100 also can send the flame-out packet of bus to the bus of hoist, and motor 700 receives auto extinguishing behind the flame-out packet of this bus.In addition, controller 100 can also send flame-out signal and directly act on the flame-out input point of engine block, to kill engine 700.People from related domain should be appreciated that the flame-out implementation of controller 100 control motors 700 is various, and the present invention does not do any qualification to it.
During specific operation, can confirm first set time according to actual conditions, the present invention does not do qualification to it.
When present embodiment was in non-job state and satisfies burn-out condition at hoist, control motor auto extinguishing compared with prior art, had not only been practiced thrift the energy, simultaneously, had also reduced discharge of harmful gases and to the pollution of environment.In addition, also avoid non-operating personnel to get into issuable misoperation behind the control cab, improved Security.
Preferably,, can also do further to improve, set up input-output unit 500 present embodiment referring to Fig. 3.Controller 100 also is connected with input-output unit 500; Controller 100 also is used for when hoist satisfies flame-out affirmation condition, sending flame-out affirming signal to input-output unit 500, and determines whether to send flame-out signal according to the feedback information situation of input-output unit 500.Wherein, flame-out affirmation condition is: operating grip signal and step switch signal are zero, and tach signal is non-vanishing, and this state continuance first set time.
Among this embodiment, when hoist satisfied engine misses affirmation condition, controller 100 sent flame-out confirmation to input-output unit 500, and input-output unit 500 receives also demonstration and is somebody's turn to do flame-out confirmation.During specific operation, the display screen that input-output unit 500 can select touch screen or other to have this function generally is arranged on the instrument desk in the operator cabin, so that operator in time understand this information and make feedback.Controller 100 confirms according to the feedback information situation of input-output unit 500 whether this project machinery satisfies burn-out condition again, and then determines whether to send flame-out signal.
Wherein, the condition that controller 100 sends flame-out signal is: in second set time, controller 100 receives the flame-out feedback information of affirmation that input-output unit 500 sends; Perhaps, greater than second set time time, controller 100 does not receive any feedback information that input-output unit 500 sends.The condition that controller 100 does not send flame-out signal is: in second set time, controller 100 receives the not flame-out feedback information that input-output unit 500 sends.
Can find out that in second set time, agree flame-out feedback information if operator send, controller 100 can send flame-out signal; Disagree with flame-out feedback information if operator send, controller 100 can not send flame-out signal.At this moment, controller 100 can detect detection information zero clearing before and satisfy the condition of sending the confirmation of stopping working again.
In addition, if operator greater than second set time time, still do not send feedback information, controller 100 also can send flame-out signal.During specific operation, can in controller 100, time delay module be set, when controller 100 did not receive the feedback signal of input-output unit in second set time, controller 100 was delayed time and is sent flame-out signal behind the 3rd set time.
During specific operation, can confirm second set time and the 3rd set time according to actual conditions, the present invention does not do qualification to it.
During specific operation, also can between controller 100 and input-output unit 500, switch be set, whether launch this input-output unit 500 through the operating switch decision.
Through above embodiment, can find out that the present invention has following advantage:
1) the present invention kills engine when not operation of hoist automatically, has not only reduced fuel consume, has practiced thrift resource; Simultaneously, exhaust emissions and noise pollution have also been reduced, compliance with environmental protection requirements;
2) under long-time not the situation of operator at control cab, the potential safety hazard of having avoided other staff's misoperation to cause;
3) this control gear is simple in structure, is easy to realize.
Engineering machinery embodiment:
The present invention also provides a kind of engineering machinery, is example with the hoist, and it is provided with above-mentioned any energy-saving control device.Wherein, the practical implementation process of energy-saving control device gets final product with reference to above-mentioned explanation, and the present invention repeats no more at this.
Because energy-saving control device has above-mentioned effect, also has the corresponding techniques effect so have the engineering machinery of this energy-saving control device.
Controlling method embodiment
First embodiment:
Referring to Fig. 4, the preferred embodiment of energy-saving control method of the present invention has been shown among the figure.As can be seen from the figure, this method comprises: rotating speed obtaining step S1, obtain the mechanical engine speed of this project; Operation signal obtaining step S2 obtains this project mechanical operating grip signal and step switch signal; Determining step S3 judges according to engine speed, operating grip signal and step switch signal whether this project machinery satisfies burn-out condition; Flame-out control step S4 if satisfy burn-out condition, then controls the engine misses of this project machinery; If do not satisfy burn-out condition, then motor is not done any operation.
Present embodiment can be judged the working condition of hoist according to tach signal, operating grip signal and step switch signal; And automatically controlled engine is flame-out when satisfying condition; Not only practiced thrift the energy; And avoided non-operating personnel to get into issuable misoperation behind the control cab, improved Security.
Preferably, determining step S3 further comprises: if engine speed is greater than zero, and operating grip signal and step switch signal be equal to zero, and, this state continuance first set time, judge that then this motor satisfies burn-out condition.
Generally speaking, when operating grip and step switch are in reset mode, when promptly being failure to actuate, the operation signal of operating grip and step switch is zero; At this moment, operator do not control hoist and carry out operation.If this moment, engine speed was non-vanishing, promptly motor is in running order; And first set time that satisfied above-mentioned this state continuance of condition is simultaneously then controlled engine misses.
Need to prove: in the present embodiment; The engine rotational speed signal that obtains earlier, after the operating grip signal and the step switch signal that obtain, in fact; During practical implementation; Can obtain the operating grip signal earlier yet, obtain step switch signal and tach signal again, the present invention does not do any qualification to the sequencing that obtains of three kinds of signals.
This method kills engine when not operation of hoist automatically, has not only reduced fuel consume, has practiced thrift resource; Simultaneously, exhaust emissions and noise pollution have also been reduced, compliance with environmental protection requirements.In addition, under the long-time not situation at control cab of operator, the safety of having avoided other staff's misoperation to cause is suffered from.
Second embodiment:
Referring to Fig. 5, also show second preferred embodiment of energy-saving control method of the present invention among the figure.
As shown in the figure, the determining step in the present embodiment further comprises: first substep, if engine speed is greater than zero; And operating grip signal and step switch signal are equal to zero; And, this state continuance first set time, then send whether flame-out affirmation signal to input-output unit; Second substep if in second set time, receives the flame-out signal of confirming of input-output unit feedback; Perhaps; In greater than second set time, do not receive any signal of input-output unit feedback, judge that then this motor satisfies burn-out condition; If in second set time, receive the not flame-out signal of input-output unit feedback, judge that then this motor does not satisfy burn-out condition.
With respect to first embodiment, present embodiment has increased burn-out condition and has confirmed step.Particularly, satisfied in engineering machinery: engine speed is greater than zero, and the operating grip signal is equal to zero with the step switch signal, and, this state continuance during first set time, for safety, also to send the confirmation of stopping working to input-output unit.And whether flame-outly confirm according to the feedback information situation of input-output unit.Other parts of present embodiment are identical with first embodiment, do not give unnecessary details now.
Below in conjunction with Fig. 5 present embodiment is described further:
To detect engine speed non-vanishing when controller, and operating grip and step switch all do not have operation signal, and then controller picks up counting.If engine speed changes in the timing course, or detects the actuating signal of operating grip or step switch, then timing is made zero.If timing course does not interrupt; When the accumulative total timing time reaches first setting value; The input-output unit that controller can be controlled control cab shows " flame-out prompting interface ", and this moment, if operator were not at control cab, when this demonstration reaches second set time; And controller is not when receiving any feedback information, and controller is can automatically controlled engine flame-out.If this moment, operator were in control cab, and operator select to extinguish motor through display screen in second set time, then controller control engine misses; If when operator selected not extinguish motor through display screen in second set time, controller was not controlled engine misses, and with the Cumulative time zero clearing, detects burn-out condition again.
Can know that to sum up this method not only can be saved unnecessary fuel consume, economize on resources, and, discharge of harmful gases can also be reduced and to the noise pollution of environment.In addition, this method is not only applicable to engineering machinery, is applicable to other tool equipment with intermittent work characteristics yet, and is applied widely.
Because this controlling method is similar with above-mentioned control gear principle, so relevant part can cross-reference.
The above is merely preferred embodiment of the present invention, and is in order to restriction the present invention, not all within spirit of the present invention and principle, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (10)

1. an engineering machinery is used energy-saving control device, it is characterized in that, comprises controller (100) and speed probe (400); Wherein,
Said speed probe (400) is installed on the motor of this project machinery, is used to obtain the tach signal of this motor;
Said controller (100) is connected with said speed probe (400), is used to receive said tach signal;
Said controller (100) also is connected with step switch (300) with the operating grip (200) of this project machinery, is used to obtain operating grip (200) signal and step switch (300) signal;
Said controller (100) also is used for judging according to said tach signal, said operating grip signal and said step switch signal whether this project machinery satisfies the engine misses condition, and when satisfying burn-out condition, sends flame-out signal.
2. engineering machinery according to claim 1 is used energy-saving control device, it is characterized in that,
Said burn-out condition is: said operating grip signal and said step switch signal are zero, and said tach signal is non-vanishing, and this state continuance first set time.
3. engineering machinery according to claim 1 is used energy-saving control device, it is characterized in that, also comprises input-output unit (500); Wherein,
Said controller (100) also is connected with said input-output unit (500); Said controller (100) also is used for when this project machinery satisfies flame-out affirmation condition, sending flame-out affirming signal to said input-output unit (500), and determines whether to send flame-out signal according to the feedback information situation of said input-output unit (500);
Said flame-out affirmation condition is: said operating grip signal and said step switch signal are zero, and said tach signal is non-vanishing, and this state has kept first set time.
4. engineering machinery according to claim 3 is used energy-saving control device, it is characterized in that,
The condition that said controller (100) sends flame-out signal is: in second set time, said controller (100) receives the flame-out feedback signal of affirmation that said input-output unit (500) sends; Perhaps, greater than second set time time, said controller (100) does not receive any feedback signal that said input-output unit (500) sends;
The condition that said controller (100) does not send flame-out signal is: in second set time, said controller (100) receives the not flame-out feedback signal that said input-output unit (500) sends.
5. use energy-saving control device according to claim 3 or the described engineering machinery of claim 4, it is characterized in that, said input-output unit (500) is a display screen.
6. use energy-saving control device according to claim 3 or the described engineering machinery of claim 4, it is characterized in that, be connected with switch between said controller (100) and the said input-output unit (500).
7. an engineering machinery is characterized in that, it is provided with each described energy-saving control device in the claim 1 to 6.
8. an energy-saving control method is used for engineering machinery, it is characterized in that, comprising:
The rotating speed obtaining step obtains the engine speed of said engineering machinery;
The operation signal obtaining step obtains the operating grip signal and the step switch signal of said engineering machinery;
Determining step judges according to said engine speed, operating grip signal and step switch signal whether this project machinery satisfies burn-out condition;
Flame-out control step if satisfy burn-out condition, is then controlled the engine misses of this project machinery; If do not satisfy burn-out condition, then motor is not done any operation.
9. energy-saving control method according to claim 8 is characterized in that, said determining step is specially:
If said engine speed is greater than zero, and said operating grip signal and said step switch signal be equal to zero, and, this state continuance first set time, judge that then this motor satisfies burn-out condition.
10. energy-saving control method according to claim 8 is characterized in that, said determining step comprises:
First substep, if engine speed is greater than zero, and said operating grip signal and said step switch signal be equal to zero, and, this state continuance first set time, then send whether flame-out affirmation signal to input-output unit;
Second substep if in second set time, receives the flame-out signal of confirming of input-output unit feedback; Perhaps; In greater than second set time, do not receive any signal of input-output unit feedback, judge that then this motor satisfies burn-out condition; If in second set time, receive the not flame-out signal of input-output unit feedback, judge that then this motor does not satisfy burn-out condition.
CN201210327131.1A 2012-09-06 2012-09-06 Engineering machinery and energy-saving control device thereof and method Active CN102828838B (en)

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CN110700951A (en) * 2019-09-18 2020-01-17 中联重科股份有限公司 Flameout control system, emergency stop alarm method and flameout control method

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