CN103342002A - Oil press failure monitoring system and processing method thereof - Google Patents
Oil press failure monitoring system and processing method thereof Download PDFInfo
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- CN103342002A CN103342002A CN2013102717635A CN201310271763A CN103342002A CN 103342002 A CN103342002 A CN 103342002A CN 2013102717635 A CN2013102717635 A CN 2013102717635A CN 201310271763 A CN201310271763 A CN 201310271763A CN 103342002 A CN103342002 A CN 103342002A
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Abstract
The invention relates to the technical field of oil presses, in particular to an oil press failure monitoring system and a processing method of the oil press failure monitoring system. The monitoring system comprises an oil press, a processing device and two pressure detecting devices. An operation platform which is used for controlling the oil press to work is arranged on the oil press, the two pressure detecting devices are arranged on an oil pipe of a main cylinder of the oil press and an oil pipe of a side cylinder of the oil press respectively, the two pressure detecting devices are connected with the processing device, and the processing device is connected with the operating platform. The processing device comprises an information collecting unit and an information processing unit, wherein the information collecting unit is used for obtaining oil pressure parameters, collected by the two pressure detecting devices, in the oil cylinders of the oil press and collecting calibrated travel direction information of the oil cylinders of the oil press from the operating platform, and the information processing unit is used for monitoring the oil press through the oil pressure parameters of the oil press and the calibrated travel direction information of the oil cylinders of the oil press. When an complete damaged condition occurs to the main cylinder of the oil press or the side cylinder of the oil press, the information processing unit gives an alarm, the oil press is controlled to conduct unloading, and the oil press is prevented from causing safety accidents.
Description
Technical field
The present invention relates to the hydraulic press technical field, be specifically related to the method for a kind of hydraulic press failure monitoring system and processing thereof.
Background technology
2YCH0925 type 2500t hydraulic press belongs to three beam four-column type hydraulic presses, through the multianalysis to the 2500t hydraulic press, the prefill valve of finding this class hydraulic press can exist with " vacation is serviceable condition not " form, " vacation is serviceable condition not " down in prefill valve each parts all be intact, be that prefill valve has lost normal open function and is in closed condition.The hydraulic control system of 2500t hydraulic press is made up of each the control valve group in the two-way plug-in valve, be subjected to the influence of two-way plug-in valve control valve group fault, these 7 oil cylinder oil circuits of 2500t hydraulic press are supplied with, distribution can get muddled, can cause system's hydraulic oil directly to enter working cylinder, (one is the thrust to piston core that enters the hydraulic oil generation of prefill valve control mouth by two original suffered power to cause prefill valve, another be valve core spring produce to the piston core resistance) become three power, the 3rd power that increases newly is the resistance that the hydraulic oil in the working cylinder produces the unlatching of spool.Because the area of spool is greater than the area of piston core, so under same pressure to the total resistance of piston core greater than total thrust, so prefill valve can not be opened, cause prefill valve to be in " vacation is serviceable condition not ", prefill valve can cause the direction of motion of working cylinder to change down in this " vacation is serviceable condition not ", makes hydraulic press working cylinder and lift cylinder generation direction inconsistency.Though the 2500t hydraulic press is provided with 8 big security protection systems; in " vacation not serviceable condition under "; the opposite direction process of compacting downwards can appear in hydraulic press working cylinder in the backhaul process, can make hydraulic press 8 big security protection systems malfunctioning, and these function of safety protection can't effectively be protected it.
Summary of the invention
Technical problem to be solved by this invention provides the hydraulic press failure monitoring system that a kind of running status to hydraulic press is monitored and reported to the police and handle.
For solving the problems of the technologies described above, the invention provides a kind of hydraulic press failure monitoring system, comprise hydraulic press, treatment facility and two pressure detecting devices, described hydraulic press is provided with operating desk and the two-way plug-in valve control valve group for the described hydraulic press work of control.Two described pressure detecting devices are separately positioned on the oil pipe of the master cylinder of described hydraulic press and side cylinder.Two described pressure detecting devices are connected with described treatment facility respectively.Described treatment facility is connected with described operating desk and described two-way plug-in valve control valve group.Described treatment facility comprises: information acquisition unit is used for obtaining the described hydraulic press master cylinder of two described pressure detecting devices collections and the oil pressure parameter of side cylinder; Reach the information of obtaining the demarcation stroke directions of described hydraulic press master cylinder and side cylinder from described operating desk.Information process unit is handled and is monitored described hydraulic press by the master cylinder of described hydraulic press and the demarcation stroke directions information of side cylinder oil pressure parameter and described hydraulic press master cylinder and side cylinder.
Preferably, described information acquisition unit comprises: the pressure data acquisition module is used for the oil pressure parameter of gathering master cylinder and the side cylinder of described hydraulic press from two described pressure detecting devices.The travel information acquisition module is for the information of gathering the demarcation stroke directions of described hydraulic press master cylinder and side cylinder from described operating desk.Information sending module is used for the described hydraulic press master cylinder of described pressure data acquisition module collection and the oil pressure parameter of side cylinder and the demarcation stroke directions information of described travel information acquisition module collection are sent to described information process unit.
Preferably, described information process unit comprises: information receiving module, be used for to receive the demarcation stroke directions information that oil pressure parameter that described information sending module transmits and described travel information acquisition module are gathered, and with the oil pressure parameter and demarcate stroke directions information and be sent to judge module.Judge module, whether the prefill valve that is used for judging hydraulic press operate as normal.When described prefill valve is non-normal working, judge that described master cylinder or the corresponding prefill valve of side cylinder are " not serviceable condition " or " vacation is serviceable condition not ".The warning processing module when the master cylinder of described hydraulic press or the corresponding prefill valve of side cylinder are " vacation is serviceable condition not ", are reported to the police, and is controlled described hydraulic press and carry out off-load; When the master cylinder of described hydraulic press or the corresponding prefill valve of side cylinder are " not serviceable condition ", report to the police.
Preferably, described judge module comprises: first judge module, and by the oil pressure parameter of described hydraulic press master cylinder and side cylinder and the demarcation stroke directions information of described hydraulic press master cylinder and side cylinder are judged that the master cylinder of described hydraulic press and the prefill valve of side cylinder correspondence are normal operating conditions or abnormal operating state.Second judge module, obtain the judged result of described first judge module, when the master cylinder of described hydraulic press or the corresponding prefill valve of side cylinder are abnormal operating state, master cylinder when described second judge module obtains abnormal operating state by described pressure data acquisition module or the oil pressure in the side cylinder, and pass through oil pressure information and judge that master cylinder or the corresponding prefill valve of side cylinder of abnormal operating state are " not serviceable condition " or " vacation is serviceable condition not ", and the result who judges is sent to described warning processing module.
Preferably, also comprise two sensor holders.Two described sensor holders are separately fixed on the oil pipe of the master cylinder of described hydraulic press and side cylinder.Two described pressure sensors are installed in respectively on two described sensor holders.
The present invention also provides a kind of processing method of hydraulic press failure monitoring system, comprising: obtain the oil pressure parameter of hydraulic press master cylinder and side cylinder and demarcate stroke directions information;
According to described oil pressure parameter and the duty of demarcating the prefill valve of master cylinder that stroke directions information judges described hydraulic press and side cylinder correspondence.When the master cylinder of described hydraulic press or the corresponding prefill valve of side cylinder are abnormal operating state, master cylinder when described second judge module obtains abnormal operating state by described pressure data acquisition module or the oil pressure in the side cylinder, and judge by described oil pressure information whether the master cylinder of abnormal operating state or the corresponding prefill valve of side cylinder are " not serviceable condition " or " vacation is serviceable condition not ".When the prefill valve of the master cylinder of described hydraulic press or side cylinder correspondence was in " vacation is serviceable condition not ", described warning processing module was sent alarm command and is reported to the police, and controls described hydraulic press and carry out off-load.When the master cylinder of described hydraulic press or the corresponding prefill valve of side cylinder were " not serviceable condition ", described warning processing module was sent alarm command and is reported to the police.
Preferably, described first judge module obtains oil pressure parameter and the master cylinder of the described hydraulic press that described travel information acquisition module is gathered and the stroke directions information of side cylinder of described pressure data acquisition module collection, master cylinder by the demarcation stroke directions information of the oil pressure parameter of described hydraulic press master cylinder and side cylinder and described hydraulic press master cylinder and side cylinder being judged described hydraulic press and side cylinder correspondence prefill valve be that normal operating conditions or abnormal operating state comprise: when master cylinder or the backhaul of side cylinder, and when corresponding master cylinder or the oil pressure in the side cylinder were zero, described first judge module was judged as normal operating conditions with the prefill valve of this master cylinder or side cylinder correspondence; When the compacting of master cylinder or side cylinder, and the oil pressure of corresponding master cylinder or side cylinder is when non-vanishing, and described first judge module is judged as normal operating conditions with the prefill valve of this master cylinder or side cylinder correspondence.When master cylinder and side cylinder interlock backhaul, and corresponding master cylinder and the oil pressure in the side cylinder be when being zero, and described first judge module is judged as normal operating conditions respectively with the prefill valve of this master cylinder and side cylinder correspondence; When master cylinder and side cylinder interlock compacting, and corresponding master cylinder and the oil pressure in the side cylinder be when all non-vanishing, and described first judge module is judged as the prefill valve of this master cylinder and side cylinder correspondence respectively and is normal operating conditions.When master cylinder or side cylinder were not normal operating conditions, described first judge module was judged as abnormal operating state with the prefill valve of this master cylinder or side cylinder correspondence.
Preferably, described master cylinder or the prefill valve of side cylinder correspondence when being abnormal operating state when hydraulic press, master cylinder when described second judge module obtains abnormal operating state by described pressure data acquisition module or the oil pressure in the side cylinder, and judge that by oil pressure information the master cylinder of abnormal operating state or the prefill valve of side cylinder correspondence comprising for " not serviceable condition " or " vacation is serviceable condition not ": when the prefill valve of master cylinder correspondence is abnormal operating state, setting master cylinder oil pressure fiducial value in described second judge module is F1, described second judge module obtains oil pressure X1 in the corresponding master cylinder from described pressure detecting devices, if satisfy 0≤X1＜F1, then described second judge module is judged as the corresponding prefill valve of the master cylinder of correspondence and is " not serviceable condition "; If satisfy X1 〉=F1, then described second judge module is judged as " vacation is serviceable condition not " with the corresponding prefill valve of the master cylinder of correspondence; When F1 satisfies F1=(T1*A)/B, described T1 is the lifting force of master cylinder lift cylinder, and described A is the pressure effective area of master cylinder lift cylinder, and described B is the pressure effective area of master cylinder.When the side cylinder is abnormal operating state, setting master cylinder oil pressure fiducial value in described second judge module is F2, described second judge module obtains oil pressure X2 in the respective side cylinder from described pressure detecting devices, if satisfy 0≤X2＜F2, then described second judge module is judged as " not serviceable condition " with the corresponding prefill valve of side cylinder of correspondence; If satisfy X2 〉=F1, then described second judge module is judged as " vacation is serviceable condition not " with the corresponding prefill valve of side cylinder of correspondence; When F2 satisfies F1=(T2*C)/D, described T2 is the lifting force of side cylinder lift cylinder, and described C is the pressure effective area of side cylinder lift cylinder, and described D is the pressure effective area of side cylinder.
The method of hydraulic press failure monitoring system provided by the invention and processing thereof, the pressure detecting devices is surveyed the oil pressure of hydraulic press master cylinder and side cylinder, information acquisition unit in the treatment facility obtains hydraulic press master cylinder and the interior oil pressure parameter of side cylinder that two pressure detecting devices are gathered, and obtains the information of the demarcation stroke directions of hydraulic press master cylinder and side cylinder from operating desk.Information process unit is handled and is monitored the master cylinder of hydraulic press and the duty of side cylinder by the master cylinder of hydraulic press and the oil pressure parameter of side cylinder and the demarcation stroke directions information of hydraulic press master cylinder and side cylinder, when the master cylinder of hydraulic press or the corresponding prefill valve generation of side cylinder vacation not during serviceable condition, information process unit gives the alarm, and control hydraulic press and carry out off-load, prevent that hydraulic press from causing security incident.When the master cylinder of described hydraulic press or the corresponding prefill valve of side cylinder were " not serviceable condition ", information process unit sends reported to the police, and helps the repairman to fix a breakdown rapidly.
Description of drawings
The hydraulic press structural representation that Fig. 1 provides for the embodiment of the invention.
The hydraulic press failure monitoring system structured flowchart that Fig. 2 provides for the embodiment of the invention.
The specific embodiment
Referring to Fig. 1, at first the structure to hydraulic press is introduced, and hydraulic press comprises: Oil pump electrical machinery 1, shaft coupling 2, axial plunger pump 3, entablature 4, sill 5, moved cross beam 6, column 7, master cylinder 8, side cylinder 9, little lift cylinder 10, big lift cylinder 11, master cylinder connector 12, top tank 13, little lift cylinder rod 14, two-way plug-in valve control valve group (comprising main oil pump pressure regulation piece 15 and stretching pressure regulation piece 16), operating desk 17, electrical control cubicles 18, PC controller 19, upper limit 20, lower limit 21, pressure switch 22, fuel tank 25, filter 28, interlock gripping mechanism 29, big lift cylinder rod 30 and prefill valve 62.PC controller 19 places in the electrical control cubicles 18, and PC controller 19 is connected with electrical control cubicles 18 by control line, and operating desk 17 is connected with electrical control cubicles 18 by control line, and motor 1 is connected with electrical control cubicles 18 by cable.Electric elements in main oil pump pressure regulation piece 15, stretching pressure regulation piece 16 and the hydraulic system all are connected with electrical control cubicles 18 by control line.Motor 1 is connected with axial plunger oil pump 3 by shaft coupling 2.The oil-in of axial plunger oil pump 3 is connected by the oil-out of the filter 28 in oil pipe and the fuel tank, and the oil-in of filter 28 is communicated with by the bottom of oil pipe with fuel tank 25.The oil-out of axial plunger oil pump 3 is connected by the oil-in of oil pipe with main oil pump pressure regulation piece 15.The oil-out of main oil pump pressure regulation piece 15 is connected by the oil-in of oil pipe with stretching pressure regulation piece 16.Main oil pump pressure regulation piece 15 and pressure switch 22 are connected by oil pipe.Stretching pressure regulation piece 16 has six oil-outs, and as follows respectively: first oil-out is connected by the three-way pipe of oil pipe with master cylinder 8 and prefill valve 62, and prefill valve 62 is arranged on above the master cylinder 8, and the position of prefill valve 62 between surge-tank 13 and master cylinder 8.Second oil-out is connected by the oil-in of oil pipe with first distributor disk of one-in-and-two-out, the oil-out of first distributor disk is connected by the three-way pipe of oil pipe with side cylinder 9 and side cylinder prefill valve 62, prefill valve 62 is arranged on above the side cylinder 9, and prefill valve 62 is arranged on the position between surge-tank 13 and the side cylinder 9.The 3rd oil-out is connected by the oil-in of oil pipe with second distributor disk of one-in-and-two-out, the oil-out of second distributor disk by oil pipe and little lift cylinder 10 by being connected.The 4th oil-out is connected by the oil-in of oil pipe with the 3rd distributor disk of one-in-and-two-out, and the oil-out of the 3rd distributor disk is connected with big lift cylinder 11 by oil pipe.The 5th oil-out is connected with prefill valve 62 on the master cylinder 8 by oil pipe.The 6th oil-out is connected by the oil-in of oil pipe with the 4th distributor disk of one-in-and-two-out, and the oil-out of the 4th distributor disk is connected with prefill valve 62 on the side cylinder 9.First sensor seat 23 is connected with the oil pipe of first oil-out of stretching pressure regulation piece 16, and pressure sensor 24 and first sensor seat 23 are by being threaded.Second sensor holder 26 is connected with the oil pipe of second oil-out of stretching pressure regulation piece 16, pressure sensor 27 and second sensor holder 26 be by being threaded.Pressure sensor 24 and pressure sensor 27 are connected with PC controller 19 by control line.
Referring to Fig. 1 and Fig. 2, the hydraulic press failure monitoring system that the embodiment of the invention provides comprises hydraulic press, treatment facility, two pressure detecting devices (being respectively first pressure sensor 24 and second pressure sensor 27) and two sensor holders (being respectively first sensor seat 23 and second sensor holder 26).First sensor seat 23 and second sensor holder 26 are separately fixed on the oil pipe of the master cylinder 8 of hydraulic press and side cylinder 9, and first pressure sensor 24 and second pressure sensor 27 are installed in respectively on 26 of first sensor seat 23 and second sensor holders one to one.First pressure sensor 24 and second pressure sensor 27 are connected with treatment facility respectively, and treatment facility is connected with operating desk 17 and two-way plug-in valve control valve group.Treatment facility comprises: information acquisition unit, be used for obtaining first pressure sensor 24 and the hydraulic press master cylinder 8 of second pressure sensor, 27 collections and the oil pressure parameter in the side cylinder 9, and the information of obtaining the demarcation stroke directions of hydraulic press master cylinder 8 and side thick stick 9 from operating desk 17, need to prove, demarcate stroke directions and refer to that hydraulic press is when operate as normal, the stroke directions of hydraulic press master cylinder 8 or side thick stick 9, operating desk 17 is provided with the switch of control hydraulic press master cylinder 8 and side thick stick 9 stroke directions, therefore information acquisition unit obtains the information of the demarcation stroke directions of hydraulic press master cylinder 8 and side thick stick 9 by these switches, can determine that by the information of demarcating stroke directions the duty of master cylinder 8 and side cylinder 9 (comprises compacting, backhaul, interlock compacting or interlock backhaul).Information process unit is handled and is monitored hydraulic press by the oil pressure parameter of hydraulic press and the demarcation stroke directions information of hydraulic press master cylinder 8 and side thick stick 9.Information acquisition unit comprises: the pressure data acquisition module, and for the oil pressure parameter in first pressure sensor 24 and second pressure sensor, 27 collection hydraulic presses.The travel information acquisition module is used for from the information of the demarcation stroke directions of operating desk 17 collection hydraulic press master cylinders 8 and side cylinder 9.Information sending module is used for the hydraulic press master cylinder 8 of pressure data acquisition module collection and the oil pressure parameter of side cylinder 9 and the demarcation stroke directions information of travel information acquisition module collection are sent to information process unit.Information process unit comprises: information receiving module, be used for to receive the demarcation stroke directions information that oil pressure parameter that information sending module transmits and travel information acquisition module are gathered, and with the oil pressure parameter and demarcate stroke directions information and be sent to judge module.Judge module, whether the prefill valve that is used for judging hydraulic press operate as normal, and when prefill valve was non-normal working, the prefill valve of the judgement corresponding master cylinder 8 of prefill valve or side cylinder 9 correspondences was " not serviceable condition " or " vacation is serviceable condition not ".The warning processing module when the prefill valve of the master cylinder 8 of hydraulic press or side cylinder 9 correspondences is " vacation is serviceable condition not ", is reported to the police, and the control hydraulic press carries out off-load.When the prefill valve of the master cylinder 8 of hydraulic press or side cylinder 9 correspondences is " not serviceable condition ", report to the police.Judge module comprises: first judge module, and by the oil pressure parameter of hydraulic press master cylinder and side cylinder and the demarcation stroke directions information of hydraulic press master cylinder and side cylinder are judged that the master cylinder of hydraulic press and the prefill valve of side cylinder correspondence are normal operating conditions or abnormal operating state.Second judge module, obtain the judged result of first judge module, when the master cylinder of hydraulic press or the corresponding prefill valve of side cylinder are abnormal operating state, master cylinder when second judge module obtains abnormal operating state by the pressure data acquisition module or the oil pressure in the side cylinder, and pass through oil pressure information and judge that master cylinder or the corresponding prefill valve of side cylinder of abnormal operating state are " not serviceable condition " or " vacation is serviceable condition not ", and the result who judges is sent to described warning processing module.In the embodiment of the invention, treatment facility adopts computer, PLC or single-chip microcomputer, or the PC controller of shared hydraulic press.
The embodiment of the invention provides a kind of processing method of hydraulic press failure monitoring system, comprising:
Step 10: first judge module obtains oil pressure parameter and the master cylinder 8 of the hydraulic press that the travel information acquisition module is gathered and the demarcation stroke directions information of side cylinder 9 of pressure data acquisition module collection, by the oil pressure parameter of hydraulic press master cylinder and side cylinder and the demarcation stroke directions information of hydraulic press master cylinder and side cylinder are judged whether the master cylinder 8 of hydraulic press and the prefill valve of side cylinder 9 correspondences are normal operating conditions or abnormal operating state, be specially: when master cylinder 8 or 9 backhauls of side cylinder, and when the oil pressure in corresponding master cylinder 8 or the side cylinder 9 was zero, first judge module was judged as normal operating conditions with the prefill valve of this master cylinder 8 or side cylinder 9 correspondences; When 9 compactings of master cylinder 8 or side cylinder, and the oil pressure of corresponding master cylinder 8 or side cylinder 9 is when non-vanishing, and first judge module is judged as normal operating conditions with the prefill valve of this master cylinder 8 or side cylinder 9 correspondences.When the 9 interlock backhauls of master cylinder 8 and side cylinder, and the oil pressure in corresponding master cylinder 8 and the side cylinder 9 are when being zero, and first judge module is judged as normal operating conditions with the prefill valve of this master cylinder 8 and side cylinder 9 correspondences; When the 9 interlock compactings of master cylinder 8 and side cylinder, and the oil pressure in corresponding master cylinder 8 and the side cylinder 9 is when all non-vanishing, and first judge module is judged as normal operating conditions with the prefill valve of this master cylinder 8 and side cylinder 9 correspondences.When the prefill valve of master cylinder 8 or side cylinder 9 correspondences was not normal operating conditions, first judge module was judged as abnormal operating state with the prefill valve of this master cylinder 8 or side cylinder 9 correspondences.
Step 20: when the prefill valve of the master cylinder 8 of hydraulic press or side cylinder 9 correspondences is abnormal operating state, oil pressure information in master cylinder 8 when second judge module obtains abnormal operating state by the pressure data acquisition module or the side cylinder 9, and pass through oil pressure information and judge that the master cylinder 8 of abnormal operating state or the prefill valve of side cylinder 9 correspondences are " not serviceable condition " or " vacation is serviceable condition not ", be specially: when the prefill valve of master cylinder 8 correspondences is abnormal operating state, setting master cylinder 8 oil pressure fiducial values in second judge module is F1, second judge module obtains oil pressure X1 in the corresponding master cylinder 8 from first pressure sensor 24, if satisfy 0≤X1＜F1, then second judge module is judged as " not serviceable condition " with the prefill valve of master cylinder 8 correspondences of correspondence; If satisfy X1 〉=F1, then second judges than module the master cylinder 8 corresponding prefill valves of correspondence is judged as " vacation is serviceable condition not "; F1 satisfies F1=(T1*A)/B, T1 is the lifting force of master cylinder lift cylinder, and A is the pressure effective area of master cylinder lift cylinder, and B is the pressure effective area of master cylinder 8.When the prefill valve of side cylinder 9 correspondences is abnormal operating state, setting side cylinder oil pressure fiducial value in second judge module is F2, second judge module obtains oil pressure X2 in the respective side cylinder 9 from second pressure sensor 27, if satisfy 0≤X2＜F2, then second judge module is judged as " not serviceable condition " with the prefill valve of side cylinder 9 correspondences of correspondence; If satisfy X2 〉=F1, then second judge module is judged as " vacation is serviceable condition not " with the side cylinder 9 corresponding prefill valves of correspondence; F1 satisfies F1=(T2*C)/D, T2 is the lifting force of side cylinder lift cylinder, and C is the pressure effective area of side cylinder lift cylinder, and D is the pressure effective area of side cylinder 9.
Step 30: when the prefill valve of the master cylinder 8 of hydraulic press or side cylinder 9 correspondences was in " vacation is serviceable condition not ", the warning processing module was sent alarm command and is reported to the police, and sends instruction hydraulic press is carried out off-load.When the prefill valve of the master cylinder 8 of hydraulic press or side cylinder 9 correspondences was in " not serviceable condition ", the warning processing module was sent alarm command and is reported to the police.
The embodiment of the invention has following beneficial effect:
1, information process unit is monitored the master cylinder of hydraulic press and the duty of side cylinder by the master cylinder of hydraulic press and the oil pressure parameter of side cylinder and the demarcation stroke directions information of hydraulic press master cylinder and side cylinder, when the master cylinder of hydraulic press or side cylinder generation vacation not during serviceable condition, information process unit gives the alarm, and the control hydraulic press carries out off-load, prevented that downward reverse compacting from appearring suddenly in the master cylinder of hydraulic press or side cylinder in the backhaul process, and operating personnel are damaged and the miscellaneous part on the hydraulic press is caused damage.
2, simple in structure, cost is lower, is convenient to extensive use in industrial production.
It should be noted last that, the above specific embodiment is only unrestricted in order to technical scheme of the present invention to be described, although with reference to example the present invention is had been described in detail, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement technical scheme of the present invention, and not breaking away from the spirit and scope of technical solution of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (8)
1. a hydraulic press failure monitoring system comprises hydraulic press, and described hydraulic press is provided with operating desk and the two-way plug-in valve control valve group for the described hydraulic press work of control;
It is characterized in that, also comprise treatment facility and two pressure detecting devices; Two described pressure detecting devices are separately positioned on the oil pipe of the master cylinder of described hydraulic press and side cylinder; Two described pressure detecting devices are connected with described treatment facility respectively; Described treatment facility is connected with described operating desk and described two-way plug-in valve control valve group;
Described treatment facility comprises:
Information acquisition unit is used for obtaining the described hydraulic press master cylinder of two described pressure detecting devices collections and the oil pressure parameter of side cylinder; Obtain the information of the demarcation stroke directions of described hydraulic press master cylinder and side cylinder from described operating desk;
Information process unit is handled and is monitored described hydraulic press by the master cylinder of described hydraulic press and the demarcation stroke directions information of side cylinder oil pressure parameter and described hydraulic press master cylinder and side cylinder.
2. hydraulic press failure monitoring system according to claim 1 is characterized in that, described information acquisition unit comprises:
The pressure data acquisition module is used for the oil pressure parameter of gathering master cylinder and the side cylinder of described hydraulic press from two described pressure detecting devices;
The travel information acquisition module is for the information of gathering the demarcation stroke directions of described hydraulic press master cylinder and side cylinder from described operating desk;
Information sending module is used for the described hydraulic press master cylinder of described pressure data acquisition module collection and the oil pressure parameter of side cylinder and the demarcation stroke directions information of described travel information acquisition module collection are sent to described information process unit.
3. hydraulic press failure monitoring system according to claim 2 is characterized in that, described information process unit comprises:
Information receiving module be used for to receive the demarcation stroke directions information that oil pressure parameter that described information sending module transmits and described travel information acquisition module are gathered, and with the oil pressure parameter and demarcate stroke directions information and be sent to judge module;
Judge module, whether the prefill valve that is used for judging hydraulic press operate as normal; When described prefill valve is non-normal working, judge that described master cylinder or the corresponding prefill valve of side cylinder are " not serviceable condition " or " vacation is serviceable condition not ";
The warning processing module when the master cylinder of described hydraulic press or the corresponding prefill valve of side cylinder are " vacation is serviceable condition not ", are reported to the police, and is controlled described hydraulic press and carry out off-load; When the master cylinder of described hydraulic press or the corresponding prefill valve of side cylinder are " not serviceable condition ", report to the police.
4. hydraulic press failure monitoring system according to claim 3, described judge module comprises: first judge module, by the oil pressure parameter of described hydraulic press master cylinder and side cylinder and the demarcation stroke directions information of described hydraulic press master cylinder and side cylinder are judged that the master cylinder of described hydraulic press and the prefill valve of side cylinder correspondence are normal operating conditions or abnormal operating state;
Second judge module, obtain the judged result of described first judge module, when the master cylinder of described hydraulic press or the corresponding prefill valve of side cylinder are abnormal operating state, master cylinder when described second judge module obtains abnormal operating state by described pressure data acquisition module or the oil pressure in the side cylinder, and pass through oil pressure information and judge that master cylinder or the corresponding prefill valve of side cylinder of abnormal operating state are " not serviceable condition " or " vacation is serviceable condition not ", and the result who judges is sent to described warning processing module.
5. hydraulic press failure monitoring system according to claim 4 is characterized in that, also comprises two sensor holders;
Two described sensor holders are separately fixed on the oil pipe of the master cylinder of described hydraulic press and side cylinder;
Two described pressure sensors are installed in respectively on two described sensor holders.
6. the processing method of a hydraulic press failure monitoring system is characterized in that, comprising:
Obtain the oil pressure parameter of hydraulic press master cylinder and side cylinder and demarcate stroke directions information;
According to described oil pressure parameter and the duty of demarcating the prefill valve of master cylinder that stroke directions information judges described hydraulic press and side cylinder correspondence;
When the master cylinder of described hydraulic press or the corresponding prefill valve of side cylinder are abnormal operating state, oil pressure information in master cylinder when obtaining abnormal operating state or the side cylinder, and judge by described oil pressure information whether the master cylinder of abnormal operating state or the corresponding prefill valve of side cylinder are " not serviceable condition " or " vacation is serviceable condition not ";
When the prefill valve of the master cylinder of described hydraulic press or side cylinder correspondence is in " vacation is serviceable condition not ", reports to the police, and control described hydraulic press and carry out off-load; When the master cylinder of described hydraulic press or the corresponding prefill valve of side cylinder are " not serviceable condition ", report to the police.
7. want the processing method of 6 described hydraulic press failure monitoring systems according to right, it is characterized in that, described first judge module obtains the master cylinder of the described hydraulic press that oil pressure parameter that described pressure data acquisition module gathers and described travel information acquisition module gather and the stroke directions information of side cylinder, the master cylinder by the demarcation stroke directions information of the oil pressure parameter of described hydraulic press master cylinder and side cylinder and described hydraulic press master cylinder and side cylinder being judged described hydraulic press and side cylinder correspondence prefill valve be that normal operating conditions or abnormal operating state comprise:
When master cylinder or the backhaul of side cylinder, and corresponding master cylinder or the oil pressure in the side cylinder be when being zero, and described first judge module is judged as normal operating conditions with the prefill valve of this master cylinder or side cylinder correspondence; When the compacting of master cylinder or side cylinder, and the oil pressure of corresponding master cylinder or side cylinder is when non-vanishing, and described first judge module is judged as normal operating conditions with the prefill valve of this master cylinder or side cylinder correspondence;
When master cylinder and side cylinder interlock backhaul, and corresponding master cylinder and the oil pressure in the side cylinder be when being zero, and described first judge module is judged as normal operating conditions respectively with the prefill valve of this master cylinder and side cylinder correspondence; When master cylinder and side cylinder interlock compacting, and corresponding master cylinder and the oil pressure in the side cylinder be when all non-vanishing, and described first judge module is judged as the prefill valve of this master cylinder and side cylinder correspondence respectively and is normal operating conditions;
When master cylinder or side cylinder were not normal operating conditions, described first judge module was judged as abnormal operating state with the prefill valve of this master cylinder or side cylinder correspondence.
8. the processing method of hydraulic press failure monitoring system according to claim 7, it is characterized in that, described master cylinder or the prefill valve of side cylinder correspondence when being abnormal operating state when hydraulic press, master cylinder when described second judge module obtains abnormal operating state by described pressure data acquisition module or the oil pressure in the side cylinder, and judge that by oil pressure information the master cylinder of abnormal operating state or the prefill valve of side cylinder correspondence comprising for " not serviceable condition " or " vacation is serviceable condition not ":
When the prefill valve of master cylinder correspondence is abnormal operating state, setting master cylinder oil pressure fiducial value in described second judge module is F1, described second judge module obtains oil pressure X1 in the corresponding master cylinder from described pressure detecting devices, if satisfy 0≤X1＜F1, then described second judge module is judged as the corresponding prefill valve of the master cylinder of correspondence and is " not serviceable condition "; If satisfy X1 〉=F1, then described second judge module is judged as " vacation is serviceable condition not " with the corresponding prefill valve of the master cylinder of correspondence; When F1 satisfies F1=(T1*A)/B, described T1 is the lifting force of master cylinder lift cylinder, and described A is the pressure effective area of master cylinder lift cylinder, and described B is the pressure effective area of master cylinder;
When the side cylinder is abnormal operating state, setting master cylinder oil pressure fiducial value in described second judge module is F2, described second judge module obtains oil pressure X2 in the respective side cylinder from described pressure detecting devices, if satisfy 0≤X2＜F2, then described second judge module is judged as " not serviceable condition " with the corresponding prefill valve of side cylinder of correspondence; If satisfy X2 〉=F1, then described second judge module is judged as " vacation is serviceable condition not " with the corresponding prefill valve of side cylinder of correspondence; When F2 satisfies F1=(T2*C)/D, described T2 is the lifting force of side cylinder lift cylinder, and described C is the pressure effective area of side cylinder lift cylinder, and described D is the pressure effective area of side cylinder.
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