CN101649829A - Automatic pumping control technology of concrete pump - Google Patents
Automatic pumping control technology of concrete pump Download PDFInfo
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- CN101649829A CN101649829A CN200910031370A CN200910031370A CN101649829A CN 101649829 A CN101649829 A CN 101649829A CN 200910031370 A CN200910031370 A CN 200910031370A CN 200910031370 A CN200910031370 A CN 200910031370A CN 101649829 A CN101649829 A CN 101649829A
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Abstract
The invention relates to an automatic pumping control technology of a concrete pump, belonging to the technical field of the pumping control technology of the concrete pump. In the invention, the material position judgment control, the automatic anti-pumping control, the automatic idling control of the diesel, the automatic stirring control, the tilt cylinder positioning control, the oil loss protection control and the oil temperature control are integrated into a whole; all the input ends of a single chip microcontroller or a programmable logic controller (PLC) are connected with sensing elements arranged on related devices and all the output ends are connected with control devices so as to realize the automatic pumping control with the support of the program. The invention not only can reduce the labor intensity of the operator and protect the safety of the operator, but also can greatly improve the automatic control level of the concrete pump.
Description
Technical field
The present invention relates to a kind of automatic pumping control technology of concrete pump, belong to concrete pump pumping control technique field.
Background technique
Concrete pump in the course of the work, when the operator need carry out uninterrupted pumping, owing to worry the accident of various bursts, for example: the concrete in the concrete material cylinder constantly descends, when dropping to a certain degree, if it is untimely reinforced, conveyance conduit can suck a large amount of air, as easy as rolling off a logly causes plugging, during plugging, not only to clear up pipeline inner product material, also pipe blow-through again is more serious, and the accident of booster may take place, the operator will carry out rearranging of pipeline, for fear of similar plugging, the situation of booster takes place, and whether the labour contractor that do not take care sometimes extends the decline situation that material level is watched on material cylinder limit, will add materials with decision, at this moment, because stirring shaft moves, and can cause concrete to splash, and splashes operator's eyes or skin sometimes, because concrete materials has corrosivity, and human body is caused certain injury; When the operator need carry out pumping, to transfer to rated speed to diesel engine speed earlier, could start working by closed pumping switch; When finishing pumping, behind the disconnection pumping switch, again diesel engine speed is reduced to idling.Because in the pumping process, concrete in the material cylinder need constantly add material, the operator can disconnect the pumping switch when adding material, avoided air to enter in the pump concrete pipeline, but can not reduce to idling to diesel engine speed sometimes, after adding honest material, work on again, if transfer pump continuous operation 10 to 12 hours, having similar 1 hour is the stand-by period, and the oil consumption of diesel engine wastes, but require the operator to add material at every turn and cut off the pumping switch, speed drop to idling, add honest material after, again rotating speed is transferred to rated speed, open the pumping switch, work on again.In the continuous operation, each hour needs add material 20 to 30 times, so increase operator's labor intensity beyond doubt; During pumping, the material in the mixer-agitator tank because quality of material is not fine (crushed stone is bigger), causes the stirring shaft stall sometimes, and concrete materials lumps easily, and when analogue took place, the operator also will carry out cleaning work; In the pumping, the hydraulic oil in the hydraulic oil container causes oil level to descend sometimes for various reasons, causes the hydraulic system cisco unity malfunction, and serious words can cause the hydraulic pressure components and parts to damage, and the user will suffer bigger economic loss.
Summary of the invention
The purpose of this invention is to provide a kind of automatic pumping control technology of concrete pump; during at existing transfer pump uninterrupted pumping; exist the operator often by estimating the decline situation and the stirring shaft stall of material level; the rotating speed frequent transitions; various other situations such as hydraulic pressure oil level decline in the hydraulic oil container; thereby the potential safety hazard of existence operation and the deficiency under the manufacturing efficiency; can not only realize reducing operator's labor intensity by the present invention; help protecting personal safety; but also the automatic control level of raising concrete pump helps improving workmanship and efficient.
The objective of the invention is to be achieved through the following technical solutions, a kind of automatic pumping control technology of concrete pump, comprise single-chip microcomputer or programmable controller PLC, it is characterized in that, each input end of described single-chip microcomputer or programmable controller PLC connects two level sensors of control material level respectively through lead, the three-position switch that the diesel engine auto idle speed is used, automatic anti-pump control, stirring be the used pressure switch of control automatically, tilt cylinder put in place control left and right tilt cylinder near switch, the oil level switch of oil starvation protection control, the oily temperature switch of oily temperature control; Be connected corresponding pumping control relay coil through lead respectively between each output terminal of single-chip microcomputer or programmable controller PLC and ground, left and right master cylinder, the coil of the solenoid valve of left and right tilt cylinder, the control relay coil of on off switch and condensation fan, throttle actuator, three-position switch that the control of diesel engine auto idle speed is used.
Described level sensor is arranged on the material inside wall of cylinder of stirring shaft top in the material cylinder, and level sensor is made of the insulation rubber layer between the stainless steel bar in stainless steel sleeve pipe, the sleeve pipe and sleeve pipe and rod.
The open type switch is adopted in described automatic anti-pump control, the stirring used pressure switch of control automatically respectively.
Being separately fixed at the limit position of corresponding tilt cylinder near switch on the described left and right tilt cylinder, is open type near switch.
Oil level switch adopts the open type switch.
Double control switch adopts three position switch, and oily temperature switch adopts the open type switch.
The present invention judges control at the position that gathers materials; automatic anti-pump control; the control of diesel engine auto idle speed; stir control automatically; the tilt cylinder control that puts in place; oil starvation protection control; the oil temperature control is made as one; each input end at single-chip microcomputer or programmable controller PLC connects the sensor that is arranged on the related device; each output terminal at single-chip microcomputer or programmable controller PLC connects control means; under the support of program, realize automatic pumping control; the present invention can not only reduce labor intensity of operating personnel; protect personal safety, but also improved the automatic control level of concrete pump greatly.
Description of drawings
Fig. 1 is a circuit connection diagram of the present invention.
Fig. 2 is the level sensor structural representation among the present invention.
Embodiment
Further specify the present invention in conjunction with the accompanying drawings and embodiments; as shown in Figure 1; the present invention includes concrete pump and single-chip microcomputer or programmable controller PLC; present embodiment employing programmable controller PLC, collection stirring control automatically, diesel engine auto idle speed are controlled, tilt cylinder puts control in place, the oil starvation protection is controlled, oily temperature control is made as one.When the operator needs pumping, stir on off switch, behind the selection automatic pumping, select the pumping state again, whether the level sensor that is arranged in the material cylinder has material to judge to the material cylinder, if there is not material, system stops pumping, speed drop is low to moderate idling mode, and when adding materials as if past material cylinder, pump function can not carried out at once, it can postpone a period of time, avoid material level to judge that automatically the control misoperation causes the vibration of system, treat that height of materials steadily after, carry out pumping work again; This moment, rotating speed progressively raise, and when reaching peak, time-delay a period of time, pumping work begins.In the work, if stirring shaft takes place under commentaries on classics state just during stall, stirring system hydraulic tubing internal pressure raises, the control stirring motor is auto-reverse automatically to stir control automatically this moment, recover just often when stirring system hydraulic tubing internal pressure, stir automatic control meeting and automatically stirring is just reverted to and change; Equally, if stirring shaft takes place under inverted status during stall, stirring system hydraulic tubing internal pressure raises, stirring automatic control technology this moment can just change by automatic control stirring motor automatically, recover just often when stirring system hydraulic tubing internal pressure, stir automatic control technology and can automatically stirring be reverted to counter-rotating; If when in the work plugging situation taking place, the hydraulic system working pressure of pumping is than higher, automatic anti-pump control can come into force, its function is that the material that transfers out is sucked back in the material cylinder as far as possible, avoid delivery pipe ramming material or booster, when the hydraulic system working pressure of pumping recovers just often, automatic anti-pump control technique can be with the pumping state restoration; In the pumping process, if tilt cylinder is not in place, the tilt cylinder control technique also can come into force, and at first can stop pumping, and tilt cylinder can swing back and forth, and when putting the tram, pumping just can restart; In the pumping process, the cooling blower of hydraulic oil is monitored by oily temperature control technology, when hydraulic fluid temperature does not surpass setting value, cooling blower is action not, and when hydraulic fluid temperature was too high, cooling blower was started working, when the oil temperature fell after rise, cooling blower quit work; In the pumping process, if the oil level in the hydraulic oil container drops to certain position, oil starvation protection control technique can come into force, and it can stop pumping work, after ascertaining the reason, behind the good corresponding hydraulic oil of interpolation, re-powers, could proper functioning.
Among the present invention, the used pressure switch of automatic anti-pump control adopts the open type switch, sets working value and decides according to operating mode; Stir the used pressure switch of control automatically and adopt the open type switch, set working value and decide according to operating mode; The oil level switch working value preestablishes according to the hydraulic oil container degree of depth, and the setting value of oily temperature switch is required to decide by hydraulic work system.Above-mentioned device can be buied from market.Level sensor is arranged on the material inside wall of cylinder of stirring shaft top in the material cylinder, and level sensor is made of the stainless steel bar 1 in stainless steel sleeve pipe 3, the sleeve pipe 3 and the sleeve pipe 3 insulation rubber layer 2 with excellent 1.
Claims (6)
1, a kind of automatic pumping control technology of concrete pump, comprise single-chip microcomputer or programmable controller PLC, it is characterized in that, each input end of described single-chip microcomputer or programmable controller PLC connects two level sensors of control material level respectively through lead, the three-position switch that the diesel engine auto idle speed is used, automatic anti-pump control, stirring be the used pressure switch of control automatically, tilt cylinder put in place control left and right tilt cylinder near switch, the oil level switch of oil starvation protection control, the oily temperature switch of oily temperature control; Be connected corresponding pumping control relay coil through lead respectively between each output terminal of single-chip microcomputer or programmable controller PLC and ground, left and right master cylinder, the coil of the solenoid valve of left and right tilt cylinder, the control relay coil of on off switch and condensation fan, throttle actuator, three-position switch that the control of diesel engine auto idle speed is used.
2, automatic pumping control technology of concrete pump according to claim 1, it is characterized in that, described level sensor is arranged on the material inside wall of cylinder of stirring shaft top in the material cylinder, and level sensor is made of the insulation rubber layer between the stainless steel bar in stainless steel sleeve pipe, the sleeve pipe and sleeve pipe and rod.
3, automatic pumping control technology of concrete pump according to claim 1 is characterized in that, the open type switch is adopted in described automatic anti-pump control, the stirring used pressure switch of control automatically respectively.
4, automatic pumping control technology of concrete pump according to claim 1 is characterized in that, is separately fixed at the limit position of corresponding tilt cylinder near switch on the described left and right tilt cylinder, is open type near switch.
5, automatic pumping control technology of concrete pump according to claim 1 is characterized in that, oil level switch adopts the open type switch.
6, automatic pumping control technology of concrete pump according to claim 1 is characterized in that, double control switch adopts three position switch, and oily temperature switch adopts the open type switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910031370A CN101649829A (en) | 2009-04-30 | 2009-04-30 | Automatic pumping control technology of concrete pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910031370A CN101649829A (en) | 2009-04-30 | 2009-04-30 | Automatic pumping control technology of concrete pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101649829A true CN101649829A (en) | 2010-02-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910031370A Pending CN101649829A (en) | 2009-04-30 | 2009-04-30 | Automatic pumping control technology of concrete pump |
Country Status (1)
| Country | Link |
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| CN (1) | CN101649829A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101886633A (en) * | 2010-05-21 | 2010-11-17 | 云南大红山管道有限公司 | Cooling method for screw air compressor |
| CN101550928B (en) * | 2009-04-29 | 2012-10-17 | 扬州柳工建设机械有限公司 | Material level judging and controlling mechanism of concrete delivery pump |
| WO2012167499A1 (en) * | 2011-06-08 | 2012-12-13 | 长沙中联重工科技发展股份有限公司 | Pressure regulating method and system for a concrete pumping device and the concrete pumping device |
-
2009
- 2009-04-30 CN CN200910031370A patent/CN101649829A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101550928B (en) * | 2009-04-29 | 2012-10-17 | 扬州柳工建设机械有限公司 | Material level judging and controlling mechanism of concrete delivery pump |
| CN101886633A (en) * | 2010-05-21 | 2010-11-17 | 云南大红山管道有限公司 | Cooling method for screw air compressor |
| WO2012167499A1 (en) * | 2011-06-08 | 2012-12-13 | 长沙中联重工科技发展股份有限公司 | Pressure regulating method and system for a concrete pumping device and the concrete pumping device |
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Open date: 20100217 |