CN102979692A - Tandem hydraulic cylinder device, control method thereof and pumping device - Google Patents
Tandem hydraulic cylinder device, control method thereof and pumping device Download PDFInfo
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- CN102979692A CN102979692A CN2012101613598A CN201210161359A CN102979692A CN 102979692 A CN102979692 A CN 102979692A CN 2012101613598 A CN2012101613598 A CN 2012101613598A CN 201210161359 A CN201210161359 A CN 201210161359A CN 102979692 A CN102979692 A CN 102979692A
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Abstract
The invention discloses a tandem hydraulic cylinder device, a control method for the tandem hydraulic cylinder and a pumping device for a pump truck. The tandem hydraulic cylinder device comprises a first hydraulic cylinder, a second hydraulic cylinder, a first position collector, a second position collector, a third position collector, a fourth position collector, an oil supplement and drain component and a controller. The first position collector and the second position collector are respectively used for detecting front extreme positions of a first piston of the first hydraulic cylinder and a second piston of the second hydraulic cylinder. The third position collector and the fourth position collector are respectively used for detecting rear extreme positions of the first piston and the second piston. According to the tandem hydraulic cylinder device, the first hydraulic cylinder and the second hydraulic cylinder are enabled to be adjusted and compensated in real time, control accuracy is improved, and meanwhile, four position collectors can be used for reversing control of advance and return movements of the first hydraulic cylinder and the second hydraulic cylinder, reliability of the advance and return movements of the first hydraulic cylinder and the second hydraulic cylinder is improved, the advance and return movements are enabled to be provided with certain buffer distance advance and return movement when the direction of the advance and return movement is changed, and buffer effect and performance are enabled to be good.
Description
Technical field
The present invention relates to the manufacturing technology field of concrete mixer, particularly a kind of serial oil cylinders device and be used for controlling method and a kind of pumping installations for pump truck of this serial oil cylinders device.
Background technique
The concrete pump set be by the series connection hydraulic jack to-and-fro motion realize concrete uninterrupted pumping, for making the hydraulic jack energy quick and stable to-and-fro motion of connecting, driving corresponding concrete piston pump concrete, serial oil cylinders need satisfy following condition: a, reversing mode reliably correct and that two oil cylinder reciprocatings are moved is provided; B, make in the serial oil cylinders to-and-fro motion and to keep synchronously; Need satisfy during c, serial oil cylinders to-and-fro motion commutation stationarity or says and cushions requirement.
The cylinder diameter of two oil cylinders of serial oil cylinders, bar footpath is all identical, can keep in theory in the to-and-fro motion being synchronized with the movement, but owing to reasons such as accuracy of manufacturing, load, leakages, can cause two oil cylinders asynchronous, accumulation in time, its synchronization error increases gradually, and system can't be worked.
The pumping installations of prior art has respectively and only has the fixing signal picker of two covers on reversing mode, obtain and provide the serial oil cylinders to-and-fro motion necessary two commutation signal.If a cover signal picker wherein damages, then back and forth the pumping campaign just can only fault stop.Affect the concrete pump set reliability of operation, be difficult to satisfy the construction requirement of actual pump concrete.
Summary of the invention
The present invention is intended to one of solve the problems of the technologies described above at least.
For this reason, one object of the present invention is to propose a kind of serial oil cylinders device that collects commutation, buffering and synchronous formation control one.
Second purpose of the present invention is to propose a kind of controlling method of serial oil cylinders.
The 3rd purpose of the present invention is to propose a kind of pumping installations for pump truck.
Serial oil cylinders device according to the embodiment of the invention, comprise: the first and second oil cylinders, described the first and second oil cylinders are one another in series and arrange abreast, align with the front-end and back-end of described the second oil cylinder respectively being orthogonal on the axial first direction of described the first oil cylinder in the front-end and back-end of described the first oil cylinder; First to fourth station acquisition device, described the first and second station acquisition devices are in alignment with each other and are respectively applied to detect the front limit position of the second piston of the first piston of described the first oil cylinder and described the second oil cylinder at described first direction, and described the third and fourth station acquisition device is in alignment with each other and is respectively applied to detect the rear limit position of described first piston and described the second piston at described first direction; Mend the draining assembly, described benefit draining assembly links to each other with the inner chamber that described the first and second oil cylinders communicate with each other; And controller, described controller links to each other with commutation, buffering and travel synchronization according to described the first and second oil cylinders of the SC sigmal control of described first to fourth station acquisition device with benefit draining assembly with described first to fourth station acquisition device respectively.
According to one embodiment of present invention, primary importance collector and second place collector are arranged in juxtaposition, the 3rd station acquisition device and the 4th station acquisition device are arranged in juxtaposition, can detect first piston and whether the second piston reaches the precalculated position, and in the to-and-fro motion of the first oil cylinder and the second oil cylinder by reinforcing and reducing methods oil assembly repairing or draining.Make the first oil cylinder and the second oil cylinder can adjust in real time compensation ability, it is high to improve control accuracy.Simultaneously, four station acquisition devices can be used for the commutation control of the first oil cylinder and the motion of the second oil cylinder reciprocating.Four of equal value uses of station acquisition device have been improved the reliability of the first oil cylinder and the second oil cylinder reciprocating motion to a great extent, when making the to-and-fro motion commutation, have all the time certain commutation buffer distance, make the cushioning effect performance good.
In addition, serial oil cylinders device according to the above embodiment of the present invention can also have following additional technical characteristics:
Serial oil cylinders device according to an embodiment of the invention, described primary importance collector is between the front-end and back-end of described the first oil cylinder and the front end setting of contiguous described the first oil cylinder, and described second place collector is between the front-end and back-end of described the second oil cylinder and the front end setting of contiguous described the second oil cylinder.
Serial oil cylinders device according to an embodiment of the invention, described the 3rd station acquisition device between the front-end and back-end of described the first oil cylinder and the rear end of contiguous described the first oil cylinder arrange, described the 4th station acquisition device between the front-end and back-end of described the second oil cylinder and the rear end of contiguous described the second oil cylinder arrange.
The be connected with each other rodless cavity of logical or described the first and second oil cylinders of serial oil cylinders device according to an embodiment of the invention, the rod chamber of described the first and second oil cylinders is connected with each other logical.
Serial oil cylinders device according to an embodiment of the invention, move backward and the described second and the 3rd station acquisition device work during described the second piston advances forward at described first piston, and travel forward and the described first and the 4th station acquisition device work when moving backward of described the second piston at described first piston.
Controlling method according to second aspect present invention embodiment's serial oil cylinders device, described serial oil cylinders device comprises the first and second oil cylinders and the first to fourth station acquisition device that is one another in series and arranges abreast, align with the front-end and back-end of described the second oil cylinder respectively being orthogonal on the axial first direction of described the first oil cylinder in the front-end and back-end of described the first oil cylinder, described the first and second station acquisition devices are in alignment with each other and are respectively applied to detect the front limit position of the second piston of the first piston of described the first oil cylinder and described the second oil cylinder at described first direction, described the third and fourth station acquisition device is in alignment with each other and is respectively applied to detect the rear limit position of described first piston and described the second piston at described first direction, and described controlling method may further comprise the steps: described first piston move backward and during described the second piston advances forward by the described the 3rd and second place collector detect described the first and second pistons and whether move to the precalculated position; In the described second and the 3rd station acquisition device any detects and controls the commutation of the first and second oil cylinders when corresponding piston moves to the precalculated position; Judge whether the described second and the 3rd station acquisition device detects simultaneously corresponding piston and move to the precalculated position, if in the described second and the 3rd station acquisition device only one detect corresponding piston and move to the precalculated position, the inner chamber repairing that the interference of inner chamber fluid or the deficiency that communicate with each other of described the first and second oil cylinders then, described benefit draining assembly communicate with each other to described the first and second oil cylinders or the inner chamber draining that communicates with each other from described the first and second oil cylinders; Travel forward and described the second piston detects described the first and second pistons by the first and the 4th station acquisition device when moving backward whether moves to the precalculated position at described first piston; In the described first and the 4th station acquisition device any detects and controls the commutation of the first and second oil cylinders when corresponding piston moves to the precalculated position; With judge whether the described first and the 4th station acquisition device detects simultaneously corresponding piston and move to the precalculated position, if in the described second and the 3rd station acquisition device only one detect corresponding piston and move to the precalculated position, the inner chamber repairing that the interference of inner chamber fluid or the deficiency that communicate with each other of described the first and second oil cylinders then, described benefit draining assembly communicate with each other to described the first and second oil cylinders or the inner chamber draining that communicates with each other from described the first and second oil cylinders.
The controlling method of serial oil cylinders device according to an embodiment of the invention, analyze deficiency or the interference state of the inner chamber fluid that described the first and second oil cylinders of detecting for three times communicate with each other, make the inner chamber repairing that described benefit draining assembly communicates with each other to described the first and second oil cylinders or the inner chamber draining that communicates with each other from described the first and second oil cylinders.
According to the controlling method that is used for the serial oil cylinders device of the embodiment of the invention, the first oil cylinder and the second oil cylinder can be adjusted compensation in real time, and it is high to improve control accuracy.Simultaneously, four station acquisition devices can be used for the commutation control of the first oil cylinder and the motion of the second oil cylinder reciprocating.Four of equal value uses of station acquisition device have been improved the reliability of the first oil cylinder and the second oil cylinder reciprocating motion to a great extent, when making the to-and-fro motion commutation, have all the time certain commutation buffer distance, make the cushioning effect performance good.
The pumping installations that is used for pump truck according to third aspect present invention embodiment, comprise: the first and second oil cylinders, described the first and second oil cylinders are one another in series and arrange abreast, align with the front-end and back-end of described the second oil cylinder respectively being orthogonal on the axial first direction of described the first oil cylinder in the front-end and back-end of described the first oil cylinder; The first and second concrete cylinders, the front end of the first piston bar of described the first oil cylinder links to each other with the concrete piston coaxial ground of described the first concrete cylinder in described the first concrete cylinder, the front end of the second piston rod of described the second oil cylinder in described the second concrete cylinder with the linking to each other of the concrete piston coaxial of described the second concrete cylinder; Water tank, described water tank are located between described the first and second oil cylinders and described the first and second concrete cylinders, and described the first and second piston rods pass described water tank and link to each other with described the first and second concrete pistons respectively; First to fourth station acquisition device, described the first and second station acquisition devices are in alignment with each other and are respectively applied to detect the front limit position of described first piston and described the second piston at described first direction, and described the third and fourth station acquisition device is in alignment with each other and is respectively applied to detect the rear limit position of described first piston and described the second piston at described first direction; Mend the draining assembly, described benefit draining assembly links to each other with the inner chamber that described the first and second oil cylinders communicate with each other; And controller, described controller links to each other with commutation, buffering and travel synchronization according to described the first and second oil cylinders of the SC sigmal control of described first to fourth station acquisition device with benefit draining assembly with described first to fourth station acquisition device respectively.
Pumping installations for pump truck according to an embodiment of the invention, described primary importance collector is between the front-end and back-end of described the first oil cylinder and the front end setting of contiguous described the first oil cylinder, and described second place collector is between the front-end and back-end of described the second oil cylinder and the front end setting of contiguous described the second oil cylinder.
Pumping installations for pump truck according to an embodiment of the invention, described the 3rd station acquisition device between the front-end and back-end of described the first oil cylinder and the rear end of contiguous described the first oil cylinder arrange, described the 4th station acquisition device between the front-end and back-end of described the second oil cylinder and the rear end of contiguous described the second oil cylinder arrange.
Pumping installations for pump truck according to an embodiment of the invention, described the third and fourth station acquisition device is located in the described water tank.
The be connected with each other rodless cavity of logical or described the first and second oil cylinders of pumping installations for pump truck according to an embodiment of the invention, the rod chamber of described the first and second oil cylinders is connected with each other logical.
Pumping installations for pump truck according to an embodiment of the invention, move backward and the described second and the 3rd station acquisition device work during described the second piston advances forward at described first piston, and travel forward and the described first and the 4th station acquisition device work when moving backward of described the second piston at described first piston.
According to the pumping installations of the embodiment of the invention, the described serial oil cylinders device of previous embodiment according to the present invention is installed.Thus, integrate commutation, buffering and synchronous formation control.Adopt redundancy, improved the stability of pumping installations, improved manufacturing efficiency.
Additional aspect of the present invention and advantage in the following description part provide, and part will become obviously from the following description, or recognize by practice of the present invention.
Description of drawings
Above-mentioned and/or additional aspect of the present invention and advantage are from obviously and easily understanding becoming embodiment's the description in conjunction with following accompanying drawing, wherein:
Fig. 1 is the schematic representation of the pumping installations for pump truck according to an embodiment of the invention;
Fig. 2 is the schematic representation of the pumping installations that is used for pump truck according to a second embodiment of the present invention;
Fig. 3 is the schematic representation of the pumping installations that is used for pump truck of a third embodiment in accordance with the invention; With
Fig. 4 is the schematic representation of the pumping installations that is used for pump truck of a third embodiment in accordance with the invention.
Embodiment
The below describes embodiments of the invention in detail, and described embodiment's example is shown in the drawings, and wherein identical or similar label represents identical or similar element or the element with identical or similar functions from start to finish.Be exemplary below by the embodiment who is described with reference to the drawings, only be used for explaining the present invention, and can not be interpreted as limitation of the present invention.
In description of the invention, it will be appreciated that, term " " center "; " vertically "; " laterally "; " on "; D score; " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", orientation or the position relationship of indications such as " outward " are based on orientation shown in the drawings or position relationship, only be for convenience of description the present invention and simplified characterization, rather than device or the element of indication or hint indication must have specific orientation, with specific orientation structure and operation, therefore can not be interpreted as limitation of the present invention.
In addition, term " first ", " second " only are used for describing purpose, and can not be interpreted as indication or hint relative importance.
In description of the invention, need to prove that unless clear and definite regulation and restriction are arranged in addition, term " installation ", " linking to each other ", " connection " should be done broad understanding, for example, can be to be fixedly connected with, connect integratedly, also can be to removably connect; Can be mechanical connection or electrical connection, also can be the connection of two element internals; Can be directly to link to each other, also can indirectly link to each other by intermediary, for the ordinary skill in the art, can understand as the case may be the concrete meaning of above-mentioned term.
Describe with reference to the accompanying drawings according to an embodiment of the invention serial oil cylinders device in detail.
Shown in Fig. 1-4, the serial oil cylinders device according to the embodiment of the invention comprises: the first oil cylinder 10a, the second oil cylinder 10b, primary importance collector 20a, second place collector 20b, the 3rd station acquisition device 20c, the 4th station acquisition device 20d mends draining assembly 30, the controller (not shown).
Specifically, the first oil cylinder 10a and the second oil cylinder 10b are one another in series, and the first oil cylinder 10a and the second oil cylinder 10b arrange abreast.The front end of the first oil cylinder 10a (left end as shown in Fig. 1 to Fig. 4) and rear end (right-hand member as shown in Fig. 1 to Fig. 4) align with the front-end and back-end of the second oil cylinder 10b respectively on first direction.Wherein, first direction is the axial direction that is orthogonal to the first oil cylinder 10a, i.e. direction up and down as shown in Fig. 1 to Fig. 4.
Mending draining assembly 30 links to each other with the inner chamber 12 that the second oil cylinder 10b communicates with each other with the first oil cylinder 10a.
Described controller respectively with primary importance collector 20a, second place collector 20b, the 3rd station acquisition device 20c, the 4th station acquisition device 20d and benefit draining assembly 30 link to each other, according to primary importance collector 20a, second place collector 20b, the 3rd station acquisition device 20c, SC sigmal control the first oil cylinder 10a of the 4th station acquisition device 20d and commutation, buffering and the travel synchronization of the second oil cylinder 10b.
According to one embodiment of present invention, primary importance collector 20a and second place collector 20b are arranged in juxtaposition, the 3rd station acquisition device 20c and the 4th station acquisition device 20d are arranged in juxtaposition, can detect first piston 13a and whether the second piston 13b reaches the precalculated position, and in the to-and-fro motion of the first oil cylinder 10a and the second oil cylinder 10b by reinforcing and reducing methods oil assembly repairing or draining.Make the first oil cylinder 10a and the second oil cylinder can adjust in real time compensation, it is high to improve control accuracy.Simultaneously, four station acquisition devices can be used for the first oil cylinder 10a and the reciprocating commutation control of the second oil cylinder 10b.Four of equal value uses of station acquisition device, the first oil cylinder 10a and the reciprocating reliability of the second oil cylinder 10b have been improved to a great extent, when having guaranteed the to-and-fro motion commutation of two serial connection oil cylinders, have all the time certain commutation buffer distance, make the cushioning effect performance good.
According to some embodiments of the present invention, move backward and the second piston 13b second place collector 20b and the 3rd station acquisition device 20c work when travelling forward at first piston 13a, and travel forward and the second piston 13b primary importance collector 20a and the 4th station acquisition device 20d work when moving backward at first piston 13a.
As shown in Figure 1, according to one embodiment of present invention, the rod chamber of the first oil cylinder 10a and the second oil cylinder 10b is connected with each other logical.Primary importance collector 20a is positioned between the front end (left end as shown in Figure 1) of the first oil cylinder 10a and rear end (right-hand member as shown in Figure 1) and the front end setting of contiguous the first oil cylinder 10a, and second place collector 20b is between the front-end and back-end of the second oil cylinder 10b and the front end setting of contiguous the second oil cylinder 10b.The 3rd station acquisition device 20c between the front-end and back-end of the first oil cylinder 10a and the rear end of contiguous the first oil cylinder 10a arrange, the 4th station acquisition device 20d between the front-end and back-end of the second oil cylinder 10b and the rear end of contiguous the second oil cylinder 10b arrange.
As shown in Figure 2, according to another embodiment of the present invention, the rodless cavity of the first oil cylinder 10a and the second oil cylinder 10b is connected with each other logical.Primary importance collector 20a is positioned between the front end (left end as shown in Figure 2) of the first oil cylinder 10a and rear end (right-hand member as shown in Figure 2) and the front end setting of contiguous the first oil cylinder 10a, and second place collector 20b is between the front-end and back-end of the second oil cylinder 10b and the front end setting of contiguous the second oil cylinder 10b.The 3rd station acquisition device 20c between the front-end and back-end of the first oil cylinder 10a and the rear end of contiguous the first oil cylinder 10a arrange, the 4th station acquisition device 20d between the front-end and back-end of the second oil cylinder 10b and the rear end of contiguous the second oil cylinder 10b arrange.
Describe with reference to the accompanying drawings the according to a second aspect of the invention controlling method of embodiment's serial oil cylinders device in detail.
Shown in Fig. 1-4, described serial oil cylinders device comprises the first oil cylinder 10a and the second oil cylinder 10b and the primary importance collector 20a that is one another in series and arranges abreast, second place collector 20b, the 3rd station acquisition device 20c, the 4th station acquisition device 20d.Front (namely such as left direction among Fig. 1 to Fig. 4) end of described the first oil cylinder the first oil cylinder 10a and rear (namely such as to the right direction among Fig. 1 to Fig. 4) are held and are alignd with the front-end and back-end of the second oil cylinder 10b respectively on the axial first direction of the first oil cylinder the first oil cylinder 10a as described in being orthogonal to.Primary importance collector 20a and second place collector 20b be in the first direction layout that is in alignment with each other, and the 3rd station acquisition device 20c and the 4th station acquisition device 20d are in the first direction layout that is in alignment with each other.Primary importance collector 20a is for detection of the front limit position of the first piston 13a of the first oil cylinder 10a, second place collector 20b is for detection of the front limit position of the second piston 13b of the second oil cylinder 10b, the 3rd station acquisition device 20c is for detection of the rear limit position of the first piston 13a of the first oil cylinder 10a, and the 4th station acquisition device 20d is for detection of the rear limit position of the second piston 13b of the second oil cylinder 10b.
Controlling method according to the serial oil cylinders device of the embodiment of the invention may further comprise the steps:
Move backward and the second piston 13b when travelling forward at first piston 13a, detect the second piston 13b by second place collector 20b and whether move to front limit position, and whether move to rear limit position by the 3rd station acquisition device 20c detection first piston 13a.
When any in second place collector 20b and the 3rd station acquisition device 20c detects corresponding piston and move to the precalculated position, control the first oil cylinder 10a and the second oil cylinder 10b commutation.In other words, move to front limit position if second place collector 20b detects the second piston 13b, or the 3rd station acquisition device 20c is when detecting first piston 13a and moving to rear limit position, the first oil cylinder 10a and the second oil cylinder 10b commutation.
Judge whether second place collector 20b and the 3rd station acquisition device 20c detect simultaneously corresponding piston and move to the precalculated position, if among second place collector 20b and the 3rd station acquisition device 20c only one detect corresponding piston and move to the precalculated position, inner chamber 12 fluid interference or the deficiencies that communicate with each other of the first oil cylinder 10a and the second oil cylinder 10b then, inner chamber 12 drainings of mending inner chamber 12 repairings that draining assembly 30 communicates with each other to the first oil cylinder 10a and the second oil cylinder 10b or communicating with each other from the first oil cylinder 10a and the second oil cylinder 10b.
Travel forward and the second piston 13b when moving backward at first piston 13a, detect first piston 13a by primary importance collector 20a and whether move to front limit position, and detect the second piston 13b by the 4th station acquisition device 20d and whether move to rear limit position.
When any in primary importance collector 20a and the 4th station acquisition device 20d detects corresponding piston and move to the precalculated position, control the first oil cylinder 10a and the second oil cylinder 10b commutation.In other words, move to front limit position if primary importance collector 20a detects first piston 13a, or the 4th station acquisition device 20d is when detecting the second piston 13b and moving to rear limit position, the first oil cylinder 10a and the second oil cylinder 10b commutation.
Judge whether primary importance collector 20a and the 4th station acquisition device 20d detect simultaneously corresponding piston and move to the precalculated position, if among primary importance collector 20a and the 4th station acquisition device 20d only one detect corresponding piston and move to the precalculated position, inner chamber 12 fluid interference or the deficiencies that communicate with each other of the first oil cylinder 10a and the second oil cylinder 10b then, inner chamber 12 drainings of mending inner chamber 12 repairings that draining assembly 30 communicates with each other to the first oil cylinder 10a and the second oil cylinder 10b or communicating with each other from the first oil cylinder 10a and the second oil cylinder 10b.
According to the controlling method that is used for the serial oil cylinders device of the embodiment of the invention, the first oil cylinder 10a and the second oil cylinder 10b can adjust compensation in real time, and it is high to improve control accuracy.Simultaneously, four station acquisition devices can be used for the first oil cylinder 10a and the reciprocating commutation control of the second oil cylinder 10b.Four of equal value uses of station acquisition device have been improved the first oil cylinder 10a and the reciprocating reliability of the second oil cylinder 10b to a great extent, when making the to-and-fro motion commutation, have all the time certain commutation buffer distance, make the cushioning effect performance good.
According to one embodiment of present invention, analyze deficiency or the interference state of inner chamber 12 fluid that the first oil cylinder 10a of detecting for three times and the second oil cylinder 10b communicate with each other, make inner chamber 12 drainings of mending inner chamber 12 repairings that draining assembly 30 communicates with each other to described the first oil cylinder 10a and the second oil cylinder 10b or communicating with each other from the first oil cylinder 10a and the second oil cylinder 10b.Thus, deficiency that can basis or interference status adjustment are mended the time of draining assembly 30 repairings or draining, with further accurate inner chamber 12 fluid that communicate with each other of control the first oil cylinder 10a and the second oil cylinder 10b.Simultaneously, can avoid the one-time detection result inaccurate, when any station acquisition device damaged, serial oil cylinders can work on, and has improved the stability of serial oil cylinders work.
Be the executing state of reinforcing and reducing methods according to an embodiment of the invention oil assembly 30 in the part situation such as table 1.Wherein t is that reinforcing and reducing methods oil assembly 30 is mended the draining time, and k1 and k2 are the reinforcing and reducing methods oil time coefficient of reinforcing and reducing methods oil assembly 30 under the different situations.
Table 1
Describe with reference to the accompanying drawings the pumping installations that is used for pump truck according to third aspect present invention embodiment in detail.
Shown in Fig. 1-4, the pumping installations that is used for pump truck according to the embodiment of the invention comprises: the first oil cylinder 10a, the second oil cylinder 10b, primary importance collector 20a, second place collector 20b, the 3rd station acquisition device 20c, the 4th station acquisition device 20d, mend draining assembly 30 and controller (not shown), the first concrete cylinder 40a, the second concrete cylinder 40b, water tank 50.
Specifically, the first oil cylinder 10a and the second oil cylinder 10b are one another in series, and the first oil cylinder 10a and the second oil cylinder 10b arrange abreast.The front end of the first oil cylinder 10a (left end as shown in Fig. 1 to Fig. 4) and rear end (right-hand member as shown in Fig. 1 to Fig. 4) align with the front-end and back-end of the second oil cylinder 10b respectively on first direction.Wherein, first direction is the axial direction that is orthogonal to the first oil cylinder 10a, i.e. direction up and down as shown in Fig. 1 to Fig. 4.
Mending draining assembly 30 links to each other with the inner chamber 12 that the second oil cylinder 10b communicates with each other with the first oil cylinder 10a.With
Described controller respectively with primary importance collector 20a, second place collector 20b, the 3rd station acquisition device 20c, the 4th station acquisition device 20d and benefit draining assembly 30 link to each other, according to primary importance collector 20a, second place collector 20b, the 3rd station acquisition device 20c, SC sigmal control the first oil cylinder 10a of the 4th station acquisition device 20d and commutation, buffering and the travel synchronization of the second oil cylinder 10b.
The front end of the first piston bar 11a of the first oil cylinder 10a links to each other with the concrete piston coaxial ground of the first concrete cylinder 40a in the first concrete cylinder 40a, the front end of the second piston rod 11b of the second oil cylinder 10b in the second concrete cylinder 40b with the linking to each other of the concrete piston coaxial of the second concrete cylinder 40b.
According to the pumping installations of the embodiment of the invention, the described serial oil cylinders device of previous embodiment according to the present invention is installed.Thus, integrate commutation, buffering and synchronous formation control.Adopt redundancy, improved the stability of pumping installations, improved manufacturing efficiency.
According to some embodiments of the present invention, move backward and the second piston 13b second place collector 20b and the 3rd station acquisition device 20c work when travelling forward at first piston 13a, and travel forward and the second piston 13b primary importance collector 20a and the 4th station acquisition device 20d work when moving backward at first piston 13a.
Describe with reference to the accompanying drawings the pumping installations for pump truck according to an embodiment of the invention and controlling method thereof in detail.
As shown in Figure 1, according to one embodiment of present invention, the rod chamber of the first oil cylinder 10a and the second oil cylinder 10b is connected with each other logical.Primary importance collector 20a is positioned between the front end (left end as shown in Figure 1) of the first oil cylinder 10a and rear end (right-hand member as shown in Figure 1) and the front end setting of contiguous the first oil cylinder 10a, and second place collector 20b is between the front-end and back-end of the second oil cylinder 10b and the front end setting of contiguous the second oil cylinder 10b.The 3rd station acquisition device 20c between the front-end and back-end of the first oil cylinder 10a and the rear end of contiguous the first oil cylinder 10a arrange, the 4th station acquisition device 20d between the front-end and back-end of the second oil cylinder 10b and the rear end of contiguous the second oil cylinder 10b arrange.
Move backward and the second piston 13b when travelling forward at first piston 13a, detect the second piston 13b by second place collector 20b and whether move to front limit position, and whether move to rear limit position by the 3rd station acquisition device 20c detection first piston 13a.
When any in second place collector 20b and the 3rd station acquisition device 20c detects corresponding piston and move to the precalculated position, control the first oil cylinder 10a and the second oil cylinder 10b commutation.In other words, move to front limit position if second place collector 20b detects the second piston 13b, or the 3rd station acquisition device 20c is when detecting first piston 13a and moving to rear limit position, the first oil cylinder 10a and the second oil cylinder 10b commutation.
Judge whether second place collector 20b and the 3rd station acquisition device 20c detect simultaneously corresponding piston and move to the precalculated position.Specifically, if second place collector 20b detects the second piston 13b and moves to front limit position, and the 3rd station acquisition device 20c does not detect first piston 13a and moves to rear limit position, and then the inner chamber fluid that communicates with each other of the first oil cylinder 10a and the second oil cylinder 10b is not enough.If the 3rd station acquisition device 20c detects first piston 13a and moves to rear limit position, and detecting the second piston 13b, second place collector 20b do not move to front limit position, the then inner chamber 12 fluid interference that communicate with each other of the first oil cylinder 10a and the second oil cylinder 10b.
Travel forward and the second piston 13b when moving backward at first piston 13a, detect first piston 13a by primary importance collector 20a and whether move to front limit position, and detect the second piston 13b by the 4th station acquisition device 20d and whether move to rear limit position.
When any in primary importance collector 20a and the 4th station acquisition device 20d detects corresponding piston and move to the precalculated position, control the first oil cylinder 10a and the second oil cylinder 10b commutation.In other words, move to front limit position if primary importance collector 20a detects first piston 13a, or the 4th station acquisition device 20d is when detecting the second piston 13b and moving to rear limit position, the first oil cylinder 10a and the second oil cylinder 10b commutation.
Judge whether primary importance collector 20a and the 4th station acquisition device 20d detect simultaneously corresponding piston and move to the precalculated position.Specifically, if primary importance collector 20a detects first piston 13a and moves to front limit position, and the 4th station acquisition device 20d does not detect the second piston 13b and moves to rear limit position, and inner chamber 12 fluid that then communicate with each other to the first oil cylinder 10a and the second oil cylinder 10b are not enough.If the 4th station acquisition device 20c detects the second piston 13b and moves to rear limit position, and detecting first piston 13a, primary importance collector 20a do not move to front limit position, the inner chamber 12 fluid interference that then communicate with each other from the first oil cylinder 10a and the second oil cylinder 10b.
Describe with reference to the accompanying drawings the pumping installations and the controlling method thereof that are used for pump truck according to second embodiment of the present invention in detail.
As shown in Figure 2, according to the embodiment of the invention, the rodless cavity of the first oil cylinder 10a and the second oil cylinder 10b is connected with each other logical.Primary importance collector 20a is positioned between the front end (left end as shown in Figure 2) of the first oil cylinder 10a and rear end (right-hand member as shown in Figure 2) and the front end setting of contiguous the first oil cylinder 10a, and second place collector 20b is between the front-end and back-end of the second oil cylinder 10b and the front end setting of contiguous the second oil cylinder 10b.The 3rd station acquisition device 20c between the front-end and back-end of the first oil cylinder 10a and the rear end of contiguous the first oil cylinder 10a arrange, the 4th station acquisition device 20d between the front-end and back-end of the second oil cylinder 10b and the rear end of contiguous the second oil cylinder 10b arrange.
Move backward and the second piston 13b when travelling forward at first piston 13a, detect the second piston 13b by second place collector 20b and whether move to front limit position, and detect first piston 13a by the 3rd station acquisition device 20c and move to rear limit position.
In second place collector 20b and the 3rd station acquisition device 20c any detects and controls the first oil cylinder 10a and the second oil cylinder 10b commutation when corresponding piston moves to the precalculated position.In other words, move to front limit position if second place collector 20b detects the second piston 13b, or the 3rd station acquisition device 20c is when detecting first piston 13a and moving to rear limit position, the first oil cylinder 10a and the second oil cylinder 10b commutation.
Judge whether second place collector 20b and the 3rd station acquisition device 20c detect simultaneously corresponding piston and move to the precalculated position.Specifically, if second place collector 20b detects the second piston 13b and moves to front limit position, and detecting first piston 13a, the 3rd station acquisition device 20c do not move to rear limit position, the then inner chamber 12 fluid interference that communicate with each other of the first oil cylinder 10a and the second oil cylinder 10b.If the 3rd station acquisition device 20c detects first piston 13a and moves to rear limit position, and second place collector 20b does not detect the second piston 13b and moves to front limit position, and then inner chamber 12 fluid that communicate with each other of the first oil cylinder 10a and the second oil cylinder 10b are not enough.
Travel forward and the second piston 13b when moving backward at first piston 13a, detect first piston 13a by primary importance collector 20a and whether move to front limit position, and detect the second piston 13b by the 4th station acquisition device 20d and whether move to rear limit position.
When any in primary importance collector 20a and the 4th station acquisition device 20d detects corresponding piston and move to the precalculated position, control the first oil cylinder 10a and the second oil cylinder 10b commutation.In other words, move to front limit position if primary importance collector 20a detects first piston 13a, or the 4th station acquisition device 20d is when detecting the second piston 13b and moving to rear limit position, the first oil cylinder 10a and the second oil cylinder 10b commutation.
Judge whether primary importance collector 20a and the 4th station acquisition device 20d detect simultaneously corresponding piston and move to the precalculated position.Specifically, if primary importance collector 20a detects first piston 13a and moves to front limit position, and detecting the second piston 13b, the 4th station acquisition device 20d do not move to rear limit position, the then inner chamber 12 fluid interference that communicate with each other of the first oil cylinder 10a and the second oil cylinder 10b.If the 4th station acquisition device 20c detects the second piston 13b and moves to rear limit position, and primary importance collector 20a does not detect first piston 13a and moves to front limit position, and then inner chamber 12 fluid that communicate with each other of the first oil cylinder 10a and the second oil cylinder 10b are not enough.
Describe with reference to the accompanying drawings the pumping installations and the controlling method thereof that are used for pump truck according to the 3rd embodiment of the present invention in detail.
As shown in Figure 3, according to the 3rd embodiment of the present invention, the rod chamber of the first oil cylinder 10a and the second oil cylinder 10b is connected with each other logical.Primary importance collector 20a is positioned between the front end (left end as shown in Figure 3) of the first oil cylinder 10a and rear end (right-hand member as shown in Figure 3) and the front end setting of contiguous the first oil cylinder 10a, and second place collector 20b is between the front-end and back-end of the second oil cylinder 10b and the front end setting of contiguous the second oil cylinder 10b.The 3rd station acquisition device 20c and the 4th station acquisition device 20d are located in the water tank 40.
Move backward and the second piston 13b when travelling forward at first piston 13a, detect the second piston 13b by second place collector 20b and whether move to front limit position, and whether move to rear limit position by the 3rd station acquisition device 20c detection first piston 13a.
When any in second place collector 20b and the 3rd station acquisition device 20c detects corresponding piston and move to the precalculated position, control the first oil cylinder 10a and the second oil cylinder 10b commutation.In other words, move to front limit position if second place collector 20b detects the second piston 13b, or the 3rd station acquisition device 20c is when detecting first piston 13a and moving to rear limit position, the first oil cylinder 10a and the second oil cylinder 10b commutation.
Judge whether second place collector 20b and the 3rd station acquisition device 20c detect simultaneously corresponding piston and move to the precalculated position.Specifically, if second place collector 20b detects the second piston 13b and moves to front limit position, and the 3rd station acquisition device 20c does not detect first piston 13a and moves to rear limit position, and then inner chamber 12 fluid that communicate with each other of the first oil cylinder 10a and the second oil cylinder 10b are not enough.If the 3rd station acquisition device 20c detects first piston 13a and moves to rear limit position, and detecting the second piston 13b, second place collector 20b do not move to front limit position, the then inner chamber 12 fluid interference that communicate with each other of the first oil cylinder 10a and the second oil cylinder 10b.
Travel forward and the second piston 13b when moving backward at first piston 13a, detect first piston 13a by primary importance collector 20a and whether move to front limit position, and detect the second piston 13b by the 4th station acquisition device 20d and whether move to rear limit position.
In primary importance collector 20a and the 4th station acquisition device 20d any detects and controls the first oil cylinder 10a and the second oil cylinder 10b commutation when corresponding piston moves to the precalculated position.In other words, move to front limit position if primary importance collector 20a detects first piston 13a, or the 4th station acquisition device 20d is when detecting the second piston 13b and moving to rear limit position, the first oil cylinder 10a and the second oil cylinder 10b commutation.
Judge whether primary importance collector 20a and the 4th station acquisition device 20d detect simultaneously corresponding piston and move to the precalculated position, specifically, if primary importance collector 20a detects first piston 13a and moves to front limit position, and the 4th station acquisition device 20d does not detect the second piston 13b and moves to rear limit position, and then inner chamber 12 fluid that communicate with each other of the first oil cylinder 10a and the second oil cylinder 10b are not enough.If the 4th station acquisition device 20c detects the second piston 13b and moves to rear limit position, and detecting first piston 13a, primary importance collector 20a do not move to front limit position, the then inner chamber 12 fluid interference that communicate with each other of the first oil cylinder 10a and the second oil cylinder 10b.
Describe with reference to the accompanying drawings the pumping installations and the controlling method thereof that are used for pump truck according to the 4th embodiment of the present invention in detail.
As shown in Figure 4, according to the 4th embodiment of the present invention, the rodless cavity of the first oil cylinder 10a and the second oil cylinder 10b is connected with each other logical.Primary importance collector 20a is positioned between the front end (left end as shown in Figure 4) of the first oil cylinder 10a and rear end (right-hand member as shown in Figure 4) and the front end setting of contiguous the first oil cylinder 10a, and second place collector 20b is between the front-end and back-end of the second oil cylinder 10b and the front end setting of contiguous the second oil cylinder 10b.The 3rd station acquisition device 20c and the 4th station acquisition device 20d are located in the water tank 40.
Move backward and the second piston 13b when travelling forward at first piston 13a, detect the second piston 13b by second place collector 20b and whether move to front limit position, and whether move to front limit position by the 3rd station acquisition device 20c detection first piston 13a.
In second place collector 20b and the 3rd station acquisition device 20c any detects and controls the first oil cylinder 10a and the second oil cylinder 10b commutation when corresponding piston moves to the precalculated position.In other words, move to front limit position if second place collector 20b detects the second piston 13b, or the 3rd station acquisition device 20c is when detecting first piston 13a and moving to rear limit position, the first oil cylinder 10a and the second oil cylinder 10b commutation.
Judge whether second place collector 20b and the 3rd station acquisition device 20c detect simultaneously corresponding piston and move to the precalculated position.Specifically, if second place collector 20b detects the second piston 13b and moves to front limit position, and detecting first piston 13a, the 3rd station acquisition device 20c do not move to rear limit position, the then inner chamber 12 fluid interference that communicate with each other of the first oil cylinder 10a and the second oil cylinder 10b.If the 3rd station acquisition device 20c detects first piston 13a and moves to rear limit position, and second place collector 20b does not detect the second piston 13b and moves to front limit position, and then inner chamber 12 fluid that communicate with each other of the first oil cylinder 10a and the second oil cylinder 10b are not enough.
Travel forward and the second piston 13b when moving backward at first piston 13a, detect first piston 13a by primary importance collector 20a and whether move to front limit position, and detect the second piston 13b by the 4th station acquisition device 20d and whether move to rear limit position.
When any in primary importance collector 20a and the 4th station acquisition device 20d detects corresponding piston and move to the precalculated position, control the first oil cylinder 10a and the second oil cylinder 10b commutation.In other words, move to front limit position if primary importance collector 20a detects first piston 13a, or the 4th station acquisition device 20d is when detecting the second piston 13b and moving to rear limit position, the first oil cylinder 10a and the second oil cylinder 10b commutation.
Judge whether primary importance collector 20a and the 4th station acquisition device 20d detect simultaneously corresponding piston and move to the precalculated position, specifically, if primary importance collector 20a detects first piston 13a and moves to front limit position, and detecting the second piston 13b, the 4th station acquisition device 20d do not move to rear limit position, the then inner chamber 12 fluid interference that communicate with each other of the first oil cylinder 10a and the second oil cylinder 10b.If the 4th station acquisition device 20c detects the second piston 13b and moves to rear limit position, and primary importance collector 20a does not detect first piston 13a and moves to front limit position, and then inner chamber 12 fluid that communicate with each other of the first oil cylinder 10a and the second oil cylinder 10b are not enough.
Table 2
In the description of this specification, the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present invention or the example in conjunction with specific features, structure, material or the characteristics of this embodiment or example description.In this manual, the schematic statement of above-mentioned term not necessarily referred to identical embodiment or example.And the specific features of description, structure, material or characteristics can be with suitable mode combinations in any one or more embodiments or example.
Although illustrated and described embodiments of the invention, those having ordinary skill in the art will appreciate that: can carry out multiple variation, modification, replacement and modification to these embodiments in the situation that does not break away from principle of the present invention and aim, scope of the present invention is limited by claim and equivalent thereof.
Claims (13)
1. a serial oil cylinders device is characterized in that, comprising:
The first and second oil cylinders, described the first and second oil cylinders are one another in series and arrange abreast, align with the front-end and back-end of described the second oil cylinder respectively being orthogonal on the axial first direction of described the first oil cylinder in the front-end and back-end of described the first oil cylinder;
First to fourth station acquisition device, described the first and second station acquisition devices are in alignment with each other and are respectively applied to detect the front limit position of the second piston of the first piston of described the first oil cylinder and described the second oil cylinder at described first direction, and described the third and fourth station acquisition device is in alignment with each other and is respectively applied to detect the rear limit position of described first piston and described the second piston at described first direction;
Mend the draining assembly, described benefit draining assembly links to each other with the inner chamber that described the first and second oil cylinders communicate with each other; With
Controller, described controller link to each other with commutation, buffering and travel synchronization according to described the first and second oil cylinders of the SC sigmal control of described first to fourth station acquisition device with benefit draining assembly with described first to fourth station acquisition device respectively.
2. serial oil cylinders device according to claim 1, it is characterized in that, described primary importance collector is between the front-end and back-end of described the first oil cylinder and the front end setting of contiguous described the first oil cylinder, and described second place collector is between the front-end and back-end of described the second oil cylinder and the front end setting of contiguous described the second oil cylinder.
3. serial oil cylinders device according to claim 2, it is characterized in that, described the 3rd station acquisition device between the front-end and back-end of described the first oil cylinder and the rear end of contiguous described the first oil cylinder arrange, described the 4th station acquisition device between the front-end and back-end of described the second oil cylinder and the rear end of contiguous described the second oil cylinder arrange.
4. serial oil cylinders device according to claim 1 is characterized in that, the be connected with each other rodless cavity of logical or described the first and second oil cylinders of the rod chamber of described the first and second oil cylinders is connected with each other logical.
5. serial oil cylinders device according to claim 1, it is characterized in that, move backward and the described second and the 3rd station acquisition device work during described the second piston advances forward at described first piston, and travel forward and the described first and the 4th station acquisition device work when moving backward of described the second piston at described first piston.
6. the controlling method of a serial oil cylinders device, described serial oil cylinders device comprises the first and second oil cylinders and the first to fourth station acquisition device that is one another in series and arranges abreast, align with the front-end and back-end of described the second oil cylinder respectively being orthogonal on the axial first direction of described the first oil cylinder in the front-end and back-end of described the first oil cylinder, described the first and second station acquisition devices are in alignment with each other and are respectively applied to detect the front limit position of the second piston of the first piston of described the first oil cylinder and described the second oil cylinder at described first direction, described the third and fourth station acquisition device is in alignment with each other and is respectively applied to detect the rear limit position of described first piston and described the second piston at described first direction, and described controlling method may further comprise the steps:
Described first piston move backward and during described the second piston advances forward by the described the 3rd and second place collector detect described the first and second pistons and whether move to the precalculated position;
In the described second and the 3rd station acquisition device any detects and controls the commutation of the first and second oil cylinders when corresponding piston moves to the precalculated position;
Judge whether the described second and the 3rd station acquisition device detects simultaneously corresponding piston and move to the precalculated position, if in the described second and the 3rd station acquisition device only one detect corresponding piston and move to the precalculated position, the inner chamber repairing that the interference of inner chamber fluid or the deficiency that communicate with each other of described the first and second oil cylinders then, described benefit draining assembly communicate with each other to described the first and second oil cylinders or the inner chamber draining that communicates with each other from described the first and second oil cylinders;
Travel forward and described the second piston detects described the first and second pistons by the described first and the 4th station acquisition device when moving backward whether moves to the precalculated position at described first piston;
In the described first and the 4th station acquisition device any detects and controls the commutation of the first and second oil cylinders when corresponding piston moves to the precalculated position; With
Judge whether the described first and the 4th station acquisition device detects simultaneously corresponding piston and move to the precalculated position, if in the described second and the 3rd station acquisition device only one detect corresponding piston and move to the precalculated position, the inner chamber repairing that the interference of inner chamber fluid or the deficiency that communicate with each other of described the first and second oil cylinders then, described benefit draining assembly communicate with each other to described the first and second oil cylinders or the inner chamber draining that communicates with each other from described the first and second oil cylinders.
7. the controlling method of serial oil cylinders device according to claim 6, it is characterized in that, analyze deficiency or the interference state of the inner chamber fluid that described the first and second oil cylinders of detecting for three times communicate with each other, make the inner chamber repairing that described benefit draining assembly communicates with each other to described the first and second oil cylinders or the inner chamber draining that communicates with each other from described the first and second oil cylinders.
8. a pumping installations that is used for pump truck is characterized in that, comprising:
The first and second oil cylinders, described the first and second oil cylinders are one another in series and arrange abreast, align with the front-end and back-end of described the second oil cylinder respectively being orthogonal on the axial first direction of described the first oil cylinder in the front-end and back-end of described the first oil cylinder;
The first and second concrete cylinders, the front end of the first piston bar of described the first oil cylinder links to each other with the concrete piston coaxial ground of described the first concrete cylinder in described the first concrete cylinder, the front end of the second piston rod of described the second oil cylinder in described the second concrete cylinder with the linking to each other of the concrete piston coaxial of described the second concrete cylinder;
Water tank, described water tank are located between described the first and second oil cylinders and described the first and second concrete cylinders, and described the first and second piston rods pass described water tank and link to each other with described the first and second concrete pistons respectively;
First to fourth station acquisition device, described the first and second station acquisition devices are in alignment with each other and are respectively applied to detect the front limit position of described first piston and described the second piston at described first direction, and described the third and fourth station acquisition device is in alignment with each other and is respectively applied to detect the rear limit position of described first piston and described the second piston at described first direction;
Mend the draining assembly, described benefit draining assembly links to each other with the inner chamber that described the first and second oil cylinders communicate with each other; With
Controller, described controller link to each other with commutation, buffering and travel synchronization according to described the first and second oil cylinders of the SC sigmal control of described first to fourth station acquisition device with benefit draining assembly with described first to fourth station acquisition device respectively.
9. the pumping installations for pump truck according to claim 8, it is characterized in that, described primary importance collector is between the front-end and back-end of described the first oil cylinder and the front end setting of contiguous described the first oil cylinder, and described second place collector is between the front-end and back-end of described the second oil cylinder and the front end setting of contiguous described the second oil cylinder.
10. the pumping installations for pump truck according to claim 9, it is characterized in that, described the 3rd station acquisition device between the front-end and back-end of described the first oil cylinder and the rear end of contiguous described the first oil cylinder arrange, described the 4th station acquisition device between the front-end and back-end of described the second oil cylinder and the rear end of contiguous described the second oil cylinder arrange.
11. the pumping installations for pump truck according to claim 9 is characterized in that, described the third and fourth station acquisition device is located in the described water tank.
12. the pumping installations for pump truck according to claim 8 is characterized in that, the be connected with each other rodless cavity of logical or described the first and second oil cylinders of the rod chamber of described the first and second oil cylinders is connected with each other logical.
13. the pumping installations for pump truck according to claim 8, it is characterized in that, move backward and the described second and the 3rd station acquisition device work during described the second piston advances forward at described first piston, and travel forward and the described first and the 4th station acquisition device work when moving backward of described the second piston at described first piston.
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| CN201210161359.8A CN102979692B (en) | 2012-05-22 | 2012-05-22 | Tandem hydraulic cylinder device, control method thereof and pumping device |
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| CN201210161359.8A CN102979692B (en) | 2012-05-22 | 2012-05-22 | Tandem hydraulic cylinder device, control method thereof and pumping device |
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| CN103498837A (en) * | 2013-09-30 | 2014-01-08 | 中联重科股份有限公司 | Piston stroke detecting device, hydraulic system control device and method and engineering machine |
| CN103573727A (en) * | 2013-11-07 | 2014-02-12 | 中联重科股份有限公司 | Series oil cylinder reversing control method and device and concrete pumping system |
| CN103670995A (en) * | 2013-12-05 | 2014-03-26 | 中联重科股份有限公司 | Concrete pumping system and control device and method |
| CN104196692A (en) * | 2014-07-15 | 2014-12-10 | 三一汽车制造有限公司 | Pumping equipment, pumping system and reversing control device and method of pumping system |
| CN104454709A (en) * | 2014-10-21 | 2015-03-25 | 安徽星马专用汽车有限公司 | Concrete pumping equipment and reversing method for pumping oil cylinder of concrete pumping equipment |
| CN104847616A (en) * | 2014-07-01 | 2015-08-19 | 北汽福田汽车股份有限公司 | Pumping method and pumping system |
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| CN102979692B (en) | 2014-08-06 |
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Effective date of registration: 20200928 Address after: No.202 Xuanfu street, Xuanhua District, Zhangjiakou, Hebei Province Patentee after: Hebei Leisa Heavy Construction Machinery Co., Ltd Address before: 102206 Changping District City, Shahe, Sha Yang Road, Beijing Patentee before: BEIQI FOTON MOTOR Co.,Ltd. |