CN104847645A - Concrete pumping mechanism control method, pumping mechanism control device and engineering machinery - Google Patents
Concrete pumping mechanism control method, pumping mechanism control device and engineering machinery Download PDFInfo
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- CN104847645A CN104847645A CN201410156395.4A CN201410156395A CN104847645A CN 104847645 A CN104847645 A CN 104847645A CN 201410156395 A CN201410156395 A CN 201410156395A CN 104847645 A CN104847645 A CN 104847645A
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- concrete
- oil cylinder
- position information
- pumping
- selector valve
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Abstract
The invention discloses a concrete pumping mechanism control method, a pumping mechanism control device and engineering machinery. The concrete pumping mechanism control method comprises the following steps: the position information of a reversing valve is acquired; after the reversing valve is reversed in place, a pumping oil cylinder is reversed. The concrete pumping mechanism control method controls the actions of the pumping oil cylinder based on the position information of the reversing valve to prevent the pumping oil cylinder from switching the pumping direction under the condition that the reversing valve is not reversed in place, so that such problems as concrete leakage can be prevented or reduced.
Description
Technical field
The present invention relates to technical field of engineering machinery, particularly relate to a kind of concrete pumping mechanism controlling method, pumping mechanism control gear and engineering machinery.
Background technique
In concrete pumping mechanism, realize concrete uninterrupted pumping by the coordination of two pumping oil cylinders and two commutation oil cylinders.Can pumping oil cylinder and commutation cylinder action be coordinated, and can decide concrete pumping mechanism normally work.
In the prior art, by gathering the movable information of pumping oil cylinder, making pumping oil cylinder and the action simultaneously of commutation oil cylinder, thus realizing the coordination of pumping oil cylinder and commutation oil cylinder.More specifically, gather the movable information of pumping oil cylinder, when pumping oil cylinder arrives piston maximal work position (the maximum delivery position of pumping oil cylinder or maximum suction position), transmit control signal, make pumping oil cylinder and commutation oil cylinder start to change piston movement direction simultaneously.Commutation cylinder action is very fast and pumping cylinder action is relatively slow, and under normal circumstances, the delayed of selector valve is ignored, and the while of can be considered that pumping oil cylinder pushes away concrete forward, concrete cylinder is communicated with discharge nozzle.But in the concrete pumping operating mode of reality, selector valve may action be delayed because of the reason such as concrete quality or hydraulic system fault.Therefore, when concrete cylinder do not connected completely by selector valve, concrete cylinder piston just starts action, this causes part concrete in concrete cylinder to leak to hopper, reduce concrete pumping efficiency, also cause ducted concrete flow back to hopper and overflow time serious, cause larger waste.
Therefore wish that a kind of concrete pumping mechanism controlling method overcomes or at least to alleviate in the above-mentioned defect of prior art one or more.
Summary of the invention
A kind of concrete pumping mechanism controlling method is the object of the present invention is to provide to overcome or at least to alleviate in the above-mentioned defect of prior art one or more.
For achieving the above object, the invention provides a kind of concrete pumping mechanism controlling method, described concrete pumping mechanism controlling method comprises: the position information gathering selector valve, after selector valve commutation puts in place, pumping oil cylinder is commutated.
Preferably, described concrete pumping mechanism controlling method comprises further: the piston position information gathering pumping oil cylinder, at the cylinder movement of pumping piston to limit working position, commutation oil cylinder is commutated.
Preferably, to gather the mode of the position information of commutation oil cylinder, the position information of selector valve is gathered.
Preferably, proximity switch is adopted to detect the position information of commutation oil cylinder.
The present invention also provides a kind of concrete pumping mechanism control gear, and described concrete pumping mechanism control gear comprises:
Selector valve position transducer, it is for gathering the position information of selector valve; And
Controller, it is connected with described selector valve position transducer, receives the position information of described selector valve, and carrys out the commutation of control pump fuel circulating pump based on the position information of described selector valve.
Preferably, described concrete pumping mechanism control gear comprises pumping oil cylinder piston position sensor further, described pumping oil cylinder piston position sensor is for gathering pumping cylinder piston position information, and described pumping cylinder piston position information is sent to described controller, described controller controls the commutation of commutation oil cylinder based on described pumping cylinder piston position information.
Preferably, described selector valve position transducer gathers the position information of selector valve in the mode of the position information gathering commutation oil cylinder.
Preferably, described selector valve position transducer comprises the proximity switch closing on described commutation oil cylinder and arrange.
The present invention also provides a kind of engineering machinery, and described engineering machinery comprises concrete pumping mechanism control gear as above.
Preferably, described engineering machinery is concrete mixer, concrete pump, Vehicular concrete pump, filler for mine pump or mortar pump.
Concrete pumping mechanism controlling method of the present invention, position information based on selector valve controls the action of pumping oil cylinder, thus can avoid when selector valve also do not commutate put in place, pumping oil cylinder switchable pump send direction, thus can avoid or reduce problems such as occurring concrete leakage.
Accompanying drawing explanation
Fig. 1 is the schematic block diagram of the concrete pumping mechanism adopting concrete pumping mechanism controlling method according to an embodiment of the invention.
Fig. 2 is the schematic block diagram of the commutation control part of concrete pumping mechanism shown in Fig. 1.
Reference character:
| 1 | Hopper | 7 | Bolt |
| 2 | Commutation oil cylinder | 8 | Pumping oil cylinder |
| 3 | Swing arm | 9 | Water tank |
| 4 | Induction piece | 10 | Concrete cylinder |
| 5 | Proximity switch | 11 | Pull bar |
| 6 | Support | 12 | Discharge nozzle |
Embodiment
For making object of the invention process, technological scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, the technological scheme in the embodiment of the present invention is further described in more detail.In the accompanying drawings, same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Described embodiment is the present invention's part embodiment, instead of whole embodiments.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the present invention, and can not limitation of the present invention be interpreted as.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.Below in conjunction with accompanying drawing, embodiments of the invention are described in detail.
In describing the invention; it will be appreciated that; term " " center ", " longitudinal direction ", " transverse direction ", "front", "rear", "left", "right", " vertically ", " level ", " top ", " end " " interior ", " outward " etc. instruction orientation or position relationship be based on orientation shown in the drawings or position relationship; be only the present invention for convenience of description and simplified characterization; instead of instruction or imply indication device or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as limiting the scope of the invention.
The pumping mechanism of concrete pumping machinery is primarily of compositions such as hopper, commutation oil cylinder, selector valve, concrete cylinder, concrete piston, water tank, pumping oil cylinder, discharge nozzles, working principle is that the pumping oil cylinder utilizing two strokes identical drives two concrete pistons of concrete cylinder in concrete cylinder, do back and forth movement repeatedly, two commutation oil cylinders drive selector valve to be alternately communicated with discharge nozzle, thus reach the object of pump concrete.The concrete cylinder of piston-advance is communicated with discharge nozzle by selector valve, and concrete pump is sent, and the concrete cylinder that piston retreats is communicated with hopper, from hopper, concrete is sucked concrete cylinder.When piston movement is to end, commutation oil cylinder, with selector valve action, makes to be filled another concrete cylinder concrete and is communicated with discharge pipe, while concrete piston move ahead concrete sent; Another concrete cylinder is then communicated with hopper, and piston retreats from hopper inspiration concrete, and so continuous reciprocation cycle work, realizes concrete pumping.Can pumping oil cylinder and commutation cylinder action be coordinated, and can decide concrete pumping mechanism normally work.
Concrete pumping mechanism controlling method according to the present invention one broad embodiment comprises: the position information gathering selector valve, after selector valve commutation puts in place, pumping oil cylinder is commutated.Advantageously, to gather the mode of the position information of commutation oil cylinder, the position information of selector valve is gathered.Thus can be more prone to and the position reliably gathering selector valve.
Preferably, gather the piston position information of pumping oil cylinder, at the cylinder movement of pumping piston to limit working position, commutation oil cylinder is commutated.That is, after pumping oil cylinder completes suction or discharge, just make commutation cylinder action commutate.
In the concrete pumping mechanism controlling method of above-mentioned broad embodiment, position information based on selector valve controls the action of pumping oil cylinder, thus can avoid when selector valve also do not commutate put in place, pumping oil cylinder switchable pump send direction, thus can avoid or reduce problems such as occurring concrete leakage.
Fig. 1 is the schematic block diagram of the concrete pumping mechanism adopting concrete pumping mechanism controlling method according to an embodiment of the invention.Fig. 2 is the schematic block diagram of the commutation control part of concrete pumping mechanism shown in Fig. 1.
Fig. 1 and Fig. 2 shows the hopper 1 of concrete pumping mechanism, the oil cylinder 2 that commutates, swing arm 3, induction piece 4, proximity switch 5, support 6, bolt 7, pumping oil cylinder 8, water tank 9, concrete cylinder 10, pull bar 11 and discharge nozzle 12.
Proximity switch 5 gathers the position information of commutation oil cylinder 2 for detecting, determine the position information of selector valve thus, namely determine whether selector valve commutates and put in place.In the illustrated embodiment, proximity switch 5 fixedly mounts on the frame 6.Support 6 is arranged on pull bar 11 by bolt 7.Induction piece 4 is arranged in swing arm 3, and swing arm 3 is connected with commutation oil cylinder 2.When proximity switch 5 touches induction piece 4 or senses induction piece, send signal, represent that commutation oil cylinder 2 completes commutation, namely selector valve has commutated and has put in place.Be understandable that, the invention is not restricted to above-mentioned concrete structure.Such as, proximity switch can fixedly mount relative to the stationary part of concrete pumping mechanism by other means.Again such as, the mounting point of proximity switch can exchange with induction piece.Proximity switch 5 can be contact-type, and being namely depressed at switch is send signal; Also can be contactless, such as, adopt magnetron form, when sense induction piece close to time, send signal.And other detection devices such as range sensor can be adopted to detect the position of selector valve or commutation oil cylinder.
When concrete pumping machinery operation, commutation oil cylinder 2 promotes swing arm 3 and swings, and drives the selector valve commutation in hopper 1, concrete cylinder 10 is communicated with discharge nozzle 12.Meanwhile, the induction piece 4 be contained in swing arm 3 rotates to proximity switch 5 place along with swing arm 3, triggers proximity switch 5.Proximity switch 5 sends induced signal, represents that the commutation of commutation oil cylinder puts in place.After controller receives the signal that puts in place of commutation oil cylinder 2, the action of instruction pumping oil cylinder 8, releases discharge nozzle 12 the concrete in concrete cylinder 10, realizes concrete pumping.Thus, after selector valve commutation puts in place, just make pumping oil cylinder commutate.Thus can avoid when selector valve also do not commutate put in place, pumping oil cylinder switchable pump send direction, thus can avoid or reduce problems such as occurring concrete leakage.
Advantageously, gather the piston position information of pumping oil cylinder, at the cylinder movement of pumping piston to limit working position, commutation oil cylinder is commutated.That is, after pumping oil cylinder completes suction or discharge, just make commutation cylinder action commutate.Selector valve is avoided to commutate too early problems such as causing concrete leakage.
Comprising according to the concrete pumping mechanism control gear of the not shown embodiment of the present invention one: selector valve position transducer and controller.Described selector valve position transducer is for gathering the position information of selector valve, and its specific implementation form can be the proximity switch in illustrated embodiment, also can be other any suitable position detecting devices.Described controller is connected with described selector valve position transducer, receives the position information of described selector valve, and carrys out the commutation of control pump fuel circulating pump based on the position information of described selector valve.
Preferably, described concrete pumping mechanism control gear comprises pumping oil cylinder piston position sensor further, described pumping oil cylinder piston position sensor is for gathering pumping cylinder piston position information, and described pumping cylinder piston position information is sent to described controller, described controller controls the commutation of commutation oil cylinder based on described pumping cylinder piston position information.Be understandable that, described pumping oil cylinder piston position sensor can be above-mentioned proximity switch, also can be any other position detecting devices suitably.
Above-mentioned concrete pumping mechanism control gear can be applied to the engineering machinery of such as concrete mixer, to improve the accuracy of concrete pumping.Described engineering machinery can be concrete mixer, concrete pump, Vehicular concrete pump, filler for mine pump or mortar pump etc.
Concrete pumping mechanism controlling method of the present invention, adopt common proximity switch, collect the information of commutation cylinder action, make the actuation time of pumping oil cylinder and commutation oil cylinder accurate by program control, thus make pumping mechanism more reliably working, and pumping efficiency can be improved.Adopt the concrete pumping mechanism of this controlling method, its structure be simple, reliable operation, convenient for installation and maintenance, can effectively improve concrete pumping efficiency, reduce the cost of pump concrete.
Finally it is to be noted: above embodiment only in order to technological scheme of the present invention to be described, is not intended to limit.Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technological scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technological scheme.
Claims (10)
1. a concrete pumping mechanism controlling method, is characterized in that, comprising:
Gather the position information of selector valve, after selector valve commutation puts in place, pumping oil cylinder is commutated.
2. concrete pumping mechanism controlling method as claimed in claim 1, is characterized in that, comprise further:
Gather the piston position information of pumping oil cylinder, at the cylinder movement of pumping piston to limit working position, commutation oil cylinder is commutated.
3. concrete pumping mechanism controlling method as claimed in claim 2, is characterized in that, to gather the mode of the position information of commutation oil cylinder, gathers the position information of selector valve.
4. concrete pumping mechanism controlling method as claimed in claim 3, is characterized in that, adopts proximity switch to detect the position information of commutation oil cylinder.
5. a concrete pumping mechanism control gear, is characterized in that, comprising:
Selector valve position transducer, it is for gathering the position information of selector valve; And
Controller, it is connected with described selector valve position transducer, receives the position information of described selector valve, and carrys out the commutation of control pump fuel circulating pump based on the position information of described selector valve.
6. concrete pumping mechanism control gear as claimed in claim 5, it is characterized in that, comprise pumping oil cylinder piston position sensor further, described pumping oil cylinder piston position sensor is for gathering pumping cylinder piston position information, and described pumping cylinder piston position information is sent to described controller, described controller controls the commutation of commutation oil cylinder based on described pumping cylinder piston position information.
7. concrete pumping mechanism control gear as claimed in claim 6, is characterized in that, described selector valve position transducer gathers the position information of selector valve in the mode of the position information gathering commutation oil cylinder.
8. concrete pumping mechanism control gear as claimed in claim 7, is characterized in that, described selector valve position transducer comprises the proximity switch closing on described commutation oil cylinder and arrange.
9. an engineering machinery, is characterized in that, comprises the concrete pumping mechanism control gear according to any one of claim 5-8.
10. engineering machinery as claimed in claim 9, it is characterized in that, described engineering machinery is concrete mixer, concrete pump, Vehicular concrete pump, filler for mine pump or mortar pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410156395.4A CN104847645A (en) | 2014-04-18 | 2014-04-18 | Concrete pumping mechanism control method, pumping mechanism control device and engineering machinery |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410156395.4A CN104847645A (en) | 2014-04-18 | 2014-04-18 | Concrete pumping mechanism control method, pumping mechanism control device and engineering machinery |
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| CN104847645A true CN104847645A (en) | 2015-08-19 |
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| CN201410156395.4A Pending CN104847645A (en) | 2014-04-18 | 2014-04-18 | Concrete pumping mechanism control method, pumping mechanism control device and engineering machinery |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106382196A (en) * | 2016-10-21 | 2017-02-08 | 北汽福田汽车股份有限公司 | Pump truck and pumping system thereof |
| CN107165054A (en) * | 2017-07-04 | 2017-09-15 | 中铁十二局集团有限公司 | Both sides unbalanced load dynamic adjusting method and system in continuous beam cantilever casting |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106382196A (en) * | 2016-10-21 | 2017-02-08 | 北汽福田汽车股份有限公司 | Pump truck and pumping system thereof |
| CN107165054A (en) * | 2017-07-04 | 2017-09-15 | 中铁十二局集团有限公司 | Both sides unbalanced load dynamic adjusting method and system in continuous beam cantilever casting |
| CN107165054B (en) * | 2017-07-04 | 2018-11-13 | 中铁十二局集团有限公司 | Both sides unbalanced load dynamic adjusting method in continuous beam cantilever casting and system |
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Application publication date: 20150819 |
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