CN203784020U - Fast-detection and fault-acceleration compound system for hydraulic system - Google Patents
Fast-detection and fault-acceleration compound system for hydraulic system Download PDFInfo
- Publication number
- CN203784020U CN203784020U CN201420073979.0U CN201420073979U CN203784020U CN 203784020 U CN203784020 U CN 203784020U CN 201420073979 U CN201420073979 U CN 201420073979U CN 203784020 U CN203784020 U CN 203784020U
- Authority
- CN
- China
- Prior art keywords
- valve
- directional control
- solenoid directional
- mouth
- way solenoid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
Landscapes
- Fluid-Pressure Circuits (AREA)
Abstract
The utility model discloses a fast-detection and fault-acceleration compound system for a hydraulic system and belongs to the technical field of auxiliary equipment of the hydraulic system. The fast-detection and fault-acceleration compound system is characterized in that the signal output end of an industrial control machine is connected with the signal input ends of a PLC (Programmable Logic Controller) and an analog signal output card; a signal output port of the PLC is connected with all reversing valves, a motor pump and a transfer case of a hydraulic loop; all sensors of the hydraulic loop are connected with the signal input end of a data acquisition card; and the industrial control machine, the data acquisition card, the PLC, the analog signal output card and the hydraulic loop are respectively and fixedly connected with a transferring frame. The fast-detection and fault-acceleration compound system disclosed by the utility model has the advantages that the detection content is comprehensive, and the detection process is simple; except conventional data such as a pressure-flow curve, a control pressure-flow curve, opening pressure and closing pressure, evaluation on the dynamic response characteristic of certain control oil ports also can be realized; the detection for leakage of most areas can be realized; and since the fault acceleration system is added, the evaluation on the performance of the equipment can be accelerated and the working efficiency is improved.
Description
Technical field
The utility model belongs to hydraulic system supplementary equipment technical field, is specifically related to a kind of hydraulic system device for fast detecting and fault accelerating unit.
Background technique
For a long time, hydraulic system because its can realize heavy duty etc. feature be widely used in the middle of the crucial power unit of various heavy duty equipments, scope spreads all over military affairs, engineering machinery field.But hydraulic equipment also exists functional parts fragile, the shortcoming that equipment is heavier is difficult to carrying etc., the structure of hydraulic system and connection are comparatively complicated simultaneously, system mainly comprises power source, control valve group, carries out oil hydraulic pump and auxiliary element and hydraulic oil five major parts, its faut detection is needed to good signal detecting technology, consuming time also more of a specified duration.In addition, hydraulic equipment is had relatively high expectations to environment etc., the working condition of hydraulic equipment under locality, specified temp is the important indicator of hydraulic equipment service behaviour assessment, and consuming time too of a specified duration to the specific environment service behaviour assessment of the not easily damaged parts of hydraulic equipment, causes and affects equipment evaluation efficiency.So the research to the fault acceleration equipment of Hydraulic system inspecting equipment and acceleration equipment assessment has very important practical benefit and military significance.
General, for the research of fault acceleration equipment, do not form fixing pattern; What for Hydraulic system inspecting, adopt is that hydraulic system part is split and connects corresponding hydraulic station afterwards again and detect, and adopts this mode consuming time more of a specified duration, affect enterprise productivity effect, affect and operationally normally carry out.In addition, adopt the method to detect hydraulic system, integrated degree is lower, cannot realize the detection of a whole hydraulic system, assessment.And generally adopt the detection facility data capture of this kind of mode comparatively difficult, validity is not enough, cannot realize better assessment, detection to equipment working condition.
Then there is integrated, the digitizer that can detect a whole hydraulic system, not only can realize the detection of a whole hydraulic system, assessment, and can realize the better collection that detects data, guaranteed the better assessment to equipment working condition.In < < hydraulic system fault General detecting platform research > > mono-literary composition of delivering as Yang little Qiang etc., just related to a kind of comparatively advanced detection system on < < lathe and hydraulic pressure > > magazine the 38th volume, plateform system is comprised of two-part, and platform software forms with platform hardware and forms: platform software formation comprises status data base management system and detection and diagnostic system; Platform hardware formation comprises PX1 bus hardware platform, test stand for hydraulic element, portable detection unit and ground fixed platform.Not only can realize state-detection and the evaluation function of all components and parts of a whole hydraulic system, the pressure, flow, the rotating speed that comprise oil hydraulic pump, control valve, motor etc., the control port pressure of control valve, flow and equipment leakage amount, can realize the function of the technology status parameter etc. of its in-situ acquisition and storage construction machinery hydraulic system.And can realize in conjunction with software systems the better collection that detects data, guarantee the better assessment to equipment working condition.But in project alternative, we can find that although its plateform system can realize state-detection and the evaluation function of all components and parts of a whole hydraulic system, also have many problems, as to the Detection of content of hydraulic system not comprehensively and comparatively complicated; Detection platform cannot detect self whether leak with leakage rate how many; Data collection point is unreasonable etc.In addition, this systemic-function is comparatively single, cannot realize hydraulic system fault is accelerated to function, acceleration equipment Performance Evaluation.
Summary of the invention
The purpose of this utility model is to provide a kind of hydraulic system fast detecting and fault to accelerate combined system, under guaranteeing the prerequisite of the better collection of hydraulic system data and Equipment Inspection assessment accuracy, solution Hydraulic system inspecting Equipment Inspection content is in the past comprehensive not, testing process is complicated, cannot realize the problem of the assessment of certain some dynamic characteristic; Detection platform cannot detect the problem of self leaking etc.In addition, increased fault acceleration system, acceleration equipment Performance Evaluation, has improved working efficiency.
The utility model is comprised of process control machine I, data collecting card II, analog signal output card III, PLC controller IV, transhipment vehicle frame V and oil hydraulic circuit VI, and wherein the signal output part of process control machine I is connected with the signal input part of analog signal output card III with PLC controller IV through connection; The signal output of PLC controller IV is connected with each selector valve, electric-motor pump, the transfer case 15 of oil hydraulic circuit VI through connection, and selector valve comprises: 3-position 4-way solenoid directional control valve I 27,2/2-way solenoid directional control valve I 29, two-bit triplet solenoid directional control valve I 37,2/2-way solenoid directional control valve II 40,3-position 4-way solenoid directional control valve II 41,3-position 4-way solenoid directional control valve III 45,2/2-way solenoid directional control valve III 47; Electric-motor pump comprises: variable displacement pump I 14, pending fault accelerate variable displacement pump 16; The signal output of analog signal output card III is connected with each relief valve, the throttle valve of oil hydraulic circuit VI through connection, and relief valve comprises: electricity liquid ratio relief valve I 4, electricity liquid ratio relief valve II 6, electricity liquid ratio relief valve III 11, electricity liquid ratio relief valve IV 12, relief valve I 20; Throttle valve comprises: throttle valve I 22, throttle valve II 25, throttle valve III 35; Each sensor of oil hydraulic circuit VI is connected with the signal input part of data collecting card II through connection, and sensor comprises: flow transducer I 8, flow transducer II 10, hydrostatic sensor I 19, hydrostatic sensor IV 26, speed probe I 31, temperature transducer I 32, torque sensor I 33, hydrostatic sensor III 34, throttle valve III 35, hydrostatic sensor V 38, hydrostatic sensor VI 42, hydrostatic sensor VII 43, hydrostatic sensor VIII 44, temperature transducer II 48, hydrostatic sensor II 50; The signal output part of data collecting card II is connected with the signal input part of process control machine I through connection; Process control machine I, data collecting card II, PLC controller IV, analog signal output card III, oil hydraulic circuit VI are all affixed with transhipment vehicle frame V; Oil hydraulic circuit VI is comprised of power source system a, fault acceleration branch road b, motor detection branch c, valve group detection branch d, pump detection branch e, oil temperature oil level indicator I 1, fuel tank I 3, fuel tank II 2, electricity liquid ratio relief valve I 4, oil temperature oil level indicator II 5, liquid proportional relief valve II 6, electro-hydraulic proportional reducing valve I 7, flow transducer I 8, electro-hydraulic proportional reducing valve II 9, flow transducer II 10, electricity liquid ratio relief valve III 11, electricity liquid ratio relief valve IV 12, and wherein oil temperature oil level indicator I 1 is connected respectively fuel tank I 3 and fuel tank II 2 with oil temperature oil level indicator II 5; One end that the pending fault of power source system a accelerates variable displacement pump 16 import places is connected with fuel tank I 3 as filler opening, and filter I 13 imports of power source system a are at one end connected with fuel tank II 2 as filler opening; 18 of the filter II of power source system a are at one end as oil outlet connecting motor detection branch c, valve group detection branch d and pump detection branch e, 18 outlets of filter II connect 9 imports of electro-hydraulic proportional reducing valve II and connect, between filter II 18 and electro-hydraulic proportional reducing valve II 9, be provided with four bypasses, article one, bypass connects relief valve I 20, one-way valve I 21 and fuel tank II 2, second bypass connects 7 imports of electro-hydraulic proportional reducing valve I, article three, bypass connects 36 imports of electro-hydraulic proportional reducing valve IV, 19 imports of the 4th bypass connecting fluid pressure sensor I; The pending fault of power source system a accelerates variable displacement pump 16 outlets and at one end connects fault acceleration branch road b, and 16 imports of pending fault acceleration variable displacement pump connect 22 outlets of throttle valve I, and pending fault accelerates variable displacement pump 16 and exports 25 imports of connection throttle valve II; Between the relief valve I 20 of power source system a and one-way valve I 21, be provided with bypass branch road, bypass branch road connects 4 outlets of electricity liquid ratio relief valve I; Fuel tank I 3 connects respectively fault and accelerates 22 imports of throttle valve I, 25 outlets of throttle valve II in branch road b; 8 outlets of flow transducer I and 6 imports of electricity liquid ratio relief valve II are 3-position 4-way solenoid directional control valve I 27P mouth and the T mouth of connecting motor detection branch c respectively; Electro-hydraulic proportional reducing valve IV 36 imports of valve group detection branch d connect 18 outlets of filter II, and 35 outlets of throttle valve III connect 4 imports of electricity liquid ratio relief valve I; 3-position 4-way solenoid directional control valve II 41P mouth connection traffic sensor II 10 outlets of valve group detection branch d, between 3-position 4-way solenoid directional control valve II 41P mouth and flow transducer II 10, be provided with bypass connecting fluid pressure sensor VII 43,3-position 4-way solenoid directional control valve II 41T mouth connects 11 imports of electricity liquid ratio relief valve III; 3-position 4-way solenoid directional control valve III 45P mouth connection traffic sensor II 10 outlets of pump detection branch e, between 3-position 4-way solenoid directional control valve II 41P mouth and flow transducer II 10, be provided with bypass connecting fluid pressure sensor VIII 44,3-position 4-way solenoid directional control valve III 45T mouth connects 12 imports of electricity liquid ratio relief valve IV, between 3-position 4-way solenoid directional control valve III 45T mouth and electricity liquid ratio relief valve IV 12, be connected two bypasses,, a bypass connecting fluid pressure sensor II 50, another bypass connects double overflow brake valve II 46B mouth; Oil temperature oil level indicator I 1 is connected respectively fuel tank I 3 and fuel tank II 2 with oil temperature oil level indicator II 5; 7 outlet connection traffic sensor I 8 imports of electro-hydraulic proportional reducing valve I; 9 outlet connection traffic sensor II 10 imports of electro-hydraulic proportional reducing valve II; 12 outlets of electricity liquid ratio relief valve IV connect 4 imports of electricity liquid ratio relief valve I, between 12 outlets of electricity liquid ratio relief valve IV and 4 imports of electricity liquid ratio relief valve I, be provided with three bypasses, article one, bypass connects 11 outlets of electricity liquid ratio relief valve III, second bypass connects two-bit triplet solenoid directional control valve I 37B mouth, and the 3rd bypass connects 6 outlets of electricity liquid ratio relief valve II.
Described power source system a accelerates variable displacement pump 16, motor 17, filter II 18, hydrostatic sensor I 19, relief valve I 20 and one-way valve I 21 by filter I 13, variable displacement pump I 14, transfer case 15, pending fault and forms, its middle filtrator I 13, variable displacement pump I 14, filter II 18, relief valve I 20 and one-way valve I 21 are connected successively, 21 outlets are connected fuel tank II 2 to 13 imports of filter I with one-way valve I, between filter II 18 and relief valve I 20, be provided with bypass connecting fluid pressure sensor I 19, variable displacement pump I 14 connects motor 17 through transfer case 15 right-hand members; 18 outlets of filter II connect 9 imports of electro-hydraulic proportional reducing valve II, between filter II 18 and electro-hydraulic proportional reducing valve II 9, be provided with four bypasses, article one, bypass is connected fuel tank II 2 through relief valve I 20 with one-way valve I 21, second bypass connects 7 imports of electro-hydraulic proportional reducing valve I, article three, bypass connects 35 imports of throttle valve III, 19 imports of the 4th bypass connecting fluid pressure sensor I; Pending fault accelerates variable displacement pump 16 imports and connects 22 outlets of throttle valve I, and pending fault accelerates variable displacement pump 16 outlets and connects 25 imports of throttle valve II, and pending fault accelerates variable displacement pump 16 and is connected with motor 17 through transfer case 15 left ends; One end that pending fault accelerates variable displacement pump 16 import places connects fuel tank I 3 as filler opening, and the one end at filter I 13 import places connects fuel tank II 2 as filler opening; Between relief valve I 20 and one-way valve I 21, be provided with bypass branch road and connect 4 imports of electricity liquid ratio relief valve I.
Described fault is accelerated branch road b by throttle valve I 22, U-shaped pipe manometer I 23, U-shaped pipe manometer II 24 and throttle valve II 25 form, wherein throttle valve I 22, pending fault accelerates variable displacement pump 16 and is connected successively with throttle valve II 25, 22 imports of throttle valve I are connected with fuel tank I 3 through oil pipe, 22 outlets of throttle valve I are accelerated variable displacement pump 16 imports with pending fault and are connected, 22 outlets of throttle valve I are accelerated set bypass branch road between variable displacement pump 16 imports with pending fault and are connected with U-shaped pipe manometer I 23, 25 imports of throttle valve II are accelerated variable displacement pump 16 outlets with pending fault and are connected, 25 imports of throttle valve II are accelerated set bypass branch road between variable displacement pump 16 outlets with pending fault and are connected with U-shaped pipe manometer II 24, 25 outlets of throttle valve II are connected with fuel tank I 3.
Described motor detection branch c is comprised of hydrostatic sensor IV 26,3-position 4-way solenoid directional control valve I 27, double overflow brake valve I 28,2/2-way solenoid directional control valve I 29, motor I 30 to be measured, speed probe I 31, temperature transducer I 32, torque sensor I 33 and hydrostatic sensor III 34, wherein 3-position 4-way solenoid directional control valve I 27P mouth connection traffic sensor I 8 outlets, are provided with bypass connecting fluid pressure sensor IV 26 between 3-position 4-way solenoid directional control valve I 27P mouth and flow transducer I 8; 3-position 4-way solenoid directional control valve I 27A mouth connects motor I to be measured 30 one end, between 3-position 4-way solenoid directional control valve I 27A mouth and motor I 30 to be measured, be provided with two bypasses, article one, bypass connects double overflow brake valve I 28A mouth, and another bypass connects 29 outlets of 2/2-way solenoid directional control valve I; Motor I to be measured 30 the other ends connect 3-position 4-way solenoid directional control valve I 27B mouths, be provided with bypass and be connected double overflow brake valve I 28C mouth between motor I 30 the other ends to be measured and 3-position 4-way solenoid directional control valve I 27B mouth; 3-position 4-way solenoid directional control valve I 27T mouth connects 6 imports of electricity liquid ratio relief valve II, between 3-position 4-way solenoid directional control valve I 27T mouth and electricity liquid ratio relief valve II 6, be provided with two bypasses,, a bypass connecting fluid pressure sensor III 34, another bypass connects double overflow brake valve I 28B mouth; 29 imports of 2/2-way solenoid directional control valve I connect double overflow brake valve I 28D mouth; Speed probe I 31, temperature transducer I 32 and torque sensor I 33 are connected with motor I 30 to be measured.
Described valve group detection branch d by throttle valve III 35, electro-hydraulic proportional reducing valve IV 36, two-bit triplet solenoid directional control valve I 37, hydrostatic sensor V 38, treat that side valve group 39,2/2-way solenoid directional control valve II 40,3-position 4-way solenoid directional control valve II 41, hydrostatic sensor VI 42 and hydrostatic sensor VII 43 form, wherein 36 imports of electro-hydraulic proportional reducing valve IV connect 18 outlets of filter II; Two-bit triplet solenoid directional control valve I 37P mouth connects 36 outlets of electro-hydraulic proportional reducing valve IV, is provided with bypass branch road and is connected 35 imports of throttle valve III between two-bit triplet solenoid directional control valve I 37P mouth and electro-hydraulic proportional reducing valve IV 36; Two-bit triplet solenoid directional control valve I 37A mouth connects the guide oil control end treat side valve group 39, two-bit triplet solenoid directional control valve I 37A mouth and treat to be provided with bypass connecting fluid pressure sensor V 38 between the guide oil control end of side valve group 39; 10 outlets of 3-position 4-way solenoid directional control valve II 41P mouth connection traffic sensor II, are provided with bypass connecting fluid pressure sensor VII 43 between 3-position 4-way solenoid directional control valve II 41P mouth and flow transducer II 10; 3-position 4-way solenoid directional control valve II 41A mouth connects treats 39 imports of side valve group, 3-position 4-way solenoid directional control valve II 41A mouth with treat to be provided with between side valve group 39 bypass and be connected 2/2-way solenoid directional control valve II 40 and export; 3-position 4-way solenoid directional control valve II 41B mouth connects treats 39 outlets of side valve group, 3-position 4-way solenoid directional control valve II 41B mouth with treat that between side valve group 39, being provided with bypass is connected 40 imports of 2/2-way solenoid directional control valve II; 3-position 4-way solenoid directional control valve II 41T mouth connects 11 imports of electricity liquid ratio relief valve III, is provided with bypass connecting fluid pressure sensor VI 42 between 3-position 4-way solenoid directional control valve II 41T mouth and 11 imports of electricity liquid ratio relief valve III.
Described pump detection branch e is comprised of hydrostatic sensor VIII 44,3-position 4-way solenoid directional control valve III 45, double overflow brake valve II 46,2/2-way solenoid directional control valve III 47, temperature transducer II 48, pump to be measured 49 and hydrostatic sensor II 50, wherein 3-position 4-way solenoid directional control valve III 45A mouth is connected with pump to be measured 49 one end that are connected with temperature transducer II 48, between 3-position 4-way solenoid directional control valve III 45A mouth and pump to be measured 49, be provided with two bypasses, article one, bypass connects double overflow brake valve II 46A mouth, and another bypass connects 47 outlets of 2/2-way solenoid directional control valve III; 3-position 4-way solenoid directional control valve III 45B mouth connects pump 49 the other ends to be measured, is provided with bypass and is connected double overflow brake valve II 46C mouth between 3-position 4-way solenoid directional control valve III 45B mouth and pump 49 the other ends to be measured; 3-position 4-way solenoid directional control valve III 45P mouth is connected with 10 outlets of flow transducer II, between 3-position 4-way solenoid directional control valve III 45P mouth and 10 outlets of flow transducer II, is provided with bypass connecting fluid pressure sensor VIII 44; 3-position 4-way solenoid directional control valve III 45T mouth is connected with 12 imports of electricity liquid ratio relief valve IV, between 3-position 4-way solenoid directional control valve III 45T mouth and electricity liquid ratio relief valve IV 12, be provided with two bypasses,, a bypass connecting fluid pressure sensor II 50, second bypass connects double overflow brake valve II 46B mouth; 47 imports of 2/2-way solenoid directional control valve III connect double overflow brake valve II 46D mouth.
Described U-shaped pipe manometer I 23 is comprised of U-shaped plastic pipe I 51, cork stopper I 52, flexible pipe I 53, and wherein flexible pipe I 53 one end are tightly connected through cork stopper I 52 and U-shaped plastic pipe I 51.
Described U-shaped pipe manometer II 24 is comprised of U-shaped plastic pipe II 54, cork stopper II 55, flexible pipe II 56, and wherein flexible pipe II 56 one end are tightly connected through cork stopper II 55 and U-shaped plastic pipe II 54.
Function realization of the present utility model mainly comprises fault accelerated test and faut detection, assesses two-part.
For fault spped-up function, by process control machine I output order to PLC controller IV and analog signal output card III, PLC controller output electrical signals is to motor 17, transfer case 15, control pending fault and accelerate variable displacement pump 16 runnings, fault is accelerated branch road and is come into operation, the contaminated fluid of proportioning is by a certain percentage housed in fuel tank I 3, and the fluid filling in fuel tank I 3 is passed to pending fault through oil pipe and accelerates variable displacement pump 16.
Analog signal output card III is exported certain analogue signal to throttle valve I 22. and throttle valve II 25, realizes the inlet and outlet pressure of pilot line, and last U-shaped pipe manometer I 23 and U-shaped pipe manometer II 24 show pressure at two ends data.For specific pressure, fault acceleration effect is certain.Comprehensive passing through with upper type, makes pending fault accelerate variable displacement pump 16 and works under abnormal operating state, with this, reaches the effect that fault is accelerated, and realizes the function of acceleration equipment Performance Evaluation.
Faut detection, evaluation part is divided into motor detection branch c, valve group detection branch d and pump detection branch e tri-parts, work as faut detection, during evaluation part work, first Whole Equipment is carried out to self leak detection, when leak detection function plays a role, by process control machine I output order to PLC controller IV and analog signal output card III, PLC controller output electrical signals is to motor 17, transfer case 15, 14 runnings of controlled variable pump I, faut detection, evaluation part comes into operation, qualified fluid is housed in fuel tank II 2, the fluid filling in fuel tank II 2 is passed to motor detection branch c through oil pipe, valve group detection branch d or pump detection branch e.
Filter I 13,18 pairs of fluid of filter II carry out filtration, hydrostatic sensor I 19 is for measuring hydraulic fluid port pressure, relief valve I 20 is set up in advance, for branch road is carried out to protective action, avoid the too high thrashing that causes of oil pressure, when variable displacement pump I 14 abnormal works cause the fuel-displaced overpressure of equipment, the automatic conducting of relief valve, directly leads to oil sump tank by hydraulic oil;
Wherein double overflow brake valve I 28, double overflow brake valve II 46 are set up in advance, realize fluid compensation, for the protection of motor I 30 to be measured and pump 49 to be measured;
By analog signal output card III, control 4 lockings of electricity liquid ratio relief valve I; Electricity liquid ratio relief valve II 6, electro-hydraulic proportional reducing valve I 7, electro-hydraulic proportional reducing valve II 9, electricity liquid ratio relief valve III 11, electricity liquid ratio relief valve IV 12, throttle valve I 35 and electro-hydraulic proportional reducing valve IV 36 are opened;
3-position 4-way solenoid directional control valve I 27,3-position 4-way solenoid directional control valve II 41 and the 45 any direction conductings of 3-position 4-way solenoid directional control valve III;
2/2-way solenoid directional control valve I 29, two-bit triplet solenoid directional control valve I 37 realize arbitrarily that PB is logical or PA logical, 2/2-way solenoid directional control valve II 40 and 47 conductings of 2/2-way solenoid directional control valve III.
Whether after stable, observe flow transducer I 8 and flow transducer II 10 has reading to change, if there is reading to be changed to leakage, if non-metering changes for not leaking, and by data collecting card by data logging to process control machine I,
After detection completes, all relief valves, reduction valve, throttle valve are opened, motor stalling.
When the motor detection branch c of faut detection, evaluation part plays a role, by analog signal output card III, control electricity liquid ratio relief valve I 4 and loosen;
Certain parameter is opened and be adjusted to electricity liquid ratio relief valve II 6, electro-hydraulic proportional reducing valve I 7, realizes the control to working portion pressure;
3-position 4-way solenoid directional control valve I 27 forward conductions and reverse conducting, realize positive and negative rotation of motor;
By hydrostatic sensor IV 26, hydrostatic sensor III 34 and flow transducer I 8 are carried out the main measurement oil circuit of motor pressure, the detection of flow, speed probe I 31, temperature transducer I 32 and torque sensor I 33 realize revolution speed, the detection of temperature and output torque, and send data in process control machine I by data collecting card II, analyze and draw pressure-flow curve, and realize revolution speed, the detection of temperature and output torque, simultaneously in process control machine I, compare with the use standard of equipment, detect, whether assess it can continue to use.
After detection completes, motor stalling, again by all relief valves, reduction valve, throttle valve locking, all selector valves disconnect afterwards.
When valve group detection branch d plays a role, when general valve is measured, i.e., when control port does not play a role, electric machine rotation, controls electricity liquid ratio relief valve I 4 by analog signal output card III and loosens; Certain parameter is opened and be adjusted to electro-hydraulic proportional reducing valve II 9 and electricity liquid ratio relief valve III 11, realizes the control to working portion pressure; 3-position 4-way solenoid directional control valve II 41. forward conductions and reverse conducting, realize the forward and reverse of oil circuit; The detection realizing oil circuit pressure, flow by flow transducer II 10, hydrostatic sensor VI 42, hydrostatic sensor VII 43, and send data in process control machine I by data collecting card II, analyze and draw pressure-flow curve, in order to detect its ducting capacity.
When control port plays a role, if while measuring the control procedure between control port pressure and working connection, shutoff valve I 35 is closed, and controls electricity liquid ratio relief valve I 4, electro-hydraulic proportional reducing valve II 9 and electricity liquid ratio relief valve III 11 open completely by analog signal output card III.Certain parameter is opened and be adjusted to electro-hydraulic proportional reducing valve IV 36, two-bit triplet solenoid directional control valve I 37PA conducting, regulate electro-hydraulic proportional reducing valve IV 36, by hydrostatic sensor V 38, obtain pilot pressure data, flow transducer II 10 is obtained working connection data on flows.And send data in process control machine I by data collecting card II, can controlled pressure-flow curve, valve opening pressure, valve closing pressure, valve closing process controls curve and valve opening process is controlled curve etc., in order to detect its control ability.
If while measuring its dynamic response process, shutoff valve I 35 is closed, by analog signal output card III, control electricity liquid ratio relief valve I 4 and open completely.Electro-hydraulic proportional reducing valve II 9 and electricity liquid ratio relief valve III 11 are opened completely.Certain parameter is opened and be adjusted to electro-hydraulic proportional reducing valve IV 36, pressure accumulation is carried out in the first PA conducting of two-bit triplet solenoid directional control valve I 37, regulate electro-hydraulic proportional reducing valve IV 36, by hydrostatic sensor V 38, obtain pilot pressure data, by flow transducer II 10, obtain data on flows.Rear PB conducting, retentive control hydraulic fluid port constant pressure.Electro-hydraulic proportional reducing valve IV 36 is closed completely again, open 35 pressure releases of shutoff valve I, PA transient switching carries out pressure release to control port, by flow transducer II 10, obtains flow dynamics response curve data.
The single lubricating oil interlocked valve of take is example, not only can realize the main measurement oil circuit of valve group is carried out to the detection of inlet and outlet pressure, flow, pass through again the computing of process control machine I, can be in the hope of, working connection pressure-flow curve, dynamic response curves between pilot pressure-flow curve, valve opening pressure numerical value, valve closing pressure numerical value, valve closing process control curve, valve opening process control curve and control port and working connection etc., while are in process control machine I, compare with the use standard of equipment, detect, assess it and whether can continue to use.
When the pump detection branch e of faut detection, evaluation part plays a role, by analog signal output card III, control electricity liquid ratio relief valve I 4 and loosen;
Certain parameter is opened and be adjusted to electro-hydraulic proportional reducing valve II 9 and electricity liquid ratio relief valve IV 12, realizes the control to working portion pressure;
3-position 4-way solenoid directional control valve III 45 forward conductions and reverse conducting, realize the clockwise and anticlockwise of pump;
By hydrostatic sensor VIII 44, hydrostatic sensor II 50 and flow transducer II 10, carry out the detection to the main measurement oil circuit of pump pressure, flow, the detection that temperature transducer II 48 realizes pump temperature, and send data in process control machine I by data collecting card II, analyze and draw pressure-flow curve, and the detection of realization to pump temperature, in process control machine I, compare with the use standard of equipment simultaneously, detect, assess it and whether can continue to use.
After detection completes, all relief valves, reduction valve, throttle valve are opened, motor stalling.
The utility model compared with prior art has the following advantages and beneficial effect:
1. Detection of content is comprehensive, and testing process is simple, except pressure-flow curve, outside the routine datas such as pilot pressure-flow curve, cracking pressure and closing pressure, can realize the assessment of certain some control port dynamic response characteristic;
2. can realize the detection that leak in self most of region;
3. increased fault acceleration system, acceleration equipment Performance Evaluation, has improved working efficiency.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram that a kind of hydraulic system fast detecting and fault are accelerated combined system
Fig. 2 is hydraulic loop structure schematic diagram
Fig. 3 is the structural representation of power source system
Fig. 4 is the structural representation that fault is accelerated branch road
Fig. 5 is the structural representation of motor detection branch
Fig. 6 is the structural representation of valve group detection branch
Fig. 7 is the structural representation of pump detection branch
Fig. 8 is the structural representation of U-shaped pipe manometer I
Fig. 9 is the structural representation of U-shaped pipe manometer II
Figure 10 is 3-position 4-way solenoid directional control valve I interface schematic diagram
Figure 11 is double overflow brake valve I interface schematic diagram
Figure 12 is two-bit triplet solenoid directional control valve interface schematic diagram
Figure 13 is 3-position 4-way solenoid directional control valve II interface schematic diagram
Figure 14 is 3-position 4-way solenoid directional control valve III interface schematic diagram
Figure 15 is double overflow brake valve II interface schematic diagram
Among them: Ⅰ. Industrial Ⅱ. The data acquisition card Ⅲ. Analog signal output card Ⅳ. PLC controller Ⅴ. Transfer frame Ⅵ. Hydraulic circuit of a. b. power system fault accelerated branch c. motor testing branch d. detection branch valve group e. pump testing branch 1. The oil temperature oil level meter Ⅰ 2. Tank Ⅱ 3. Tank Ⅰ 4. Electro-hydraulic proportional relief valve Ⅰ 5. Oil temperature oil level meter Ⅱ 6. Electro-hydraulic proportional relief valve Ⅱ 7. Electro-hydraulic proportional pressure reducing valve Ⅰ 8. Flow sensor Ⅰ 9. Electro-hydraulic proportional pressure reducing valve Ⅱ 10. Flow sensor Ⅱ 11. Electro-hydraulic proportional relief valve Ⅲ 12. Electro-hydraulic proportional relief valve Ⅳ 13. Filter Ⅰ 14. Variable pump 15. Thansfer 16. Stay fault speed variable pump 17. 18. The motor filter Ⅱ 19. Hydraulic sensor Ⅰ 20. The overflow valve 21. 22. The check valve throttle Ⅰ 23. The u-tube pressure apparatus Ⅰ 24. The u-tube pressure apparatus Ⅱ 25. The throttle Ⅱ 26. Hydraulic sensor Ⅳ 27 three four-way electromagnetic directional valve Ⅰ 28. Double overflow brake valve Ⅰ 29 two two-way electromagnetic directional valve Ⅰ 30. Motor under test 31. 32. The speed sensor temperature sensor Ⅰ 33. Torque sensor 34 hydraulic sensor Ⅲ 35 throttle Ⅲ
Embodiment
Below in conjunction with embodiment, the utility model is described in further detail.
The utility model is achieved through the following technical solutions: a kind of hydraulic system fast detecting and fault are accelerated combined system, it is characterized in that being comprised of process control machine I, data collecting card II, analog signal output card III, PLC controller IV, transhipment vehicle frame V and oil hydraulic circuit VI, wherein the signal output part of process control machine I is connected with the signal input part of analog signal output card III with PLC controller IV through connection; The signal output of PLC controller IV is connected with each selector valve, electric-motor pump, the transfer case 15 of oil hydraulic circuit VI through connection, and selector valve comprises: 3-position 4-way solenoid directional control valve I 27,2/2-way solenoid directional control valve I 29, two-bit triplet solenoid directional control valve I 37,2/2-way solenoid directional control valve II 40,3-position 4-way solenoid directional control valve II 41,3-position 4-way solenoid directional control valve III 45,2/2-way solenoid directional control valve III 47; Electric-motor pump comprises: variable displacement pump I 14, pending fault accelerate variable displacement pump 16; The signal output of analog signal output card III is connected with each relief valve, the throttle valve of oil hydraulic circuit VI through connection, and relief valve comprises: electricity liquid ratio relief valve I 4, electricity liquid ratio relief valve II 6, electricity liquid ratio relief valve III 11, electricity liquid ratio relief valve IV 12, relief valve I 20; Throttle valve comprises: throttle valve I 22, throttle valve II 25, throttle valve III 35; Each sensor of oil hydraulic circuit VI is connected with the signal input part of data collecting card II through connection, and sensor comprises: oil temperature oil level indicator II 5, oil temperature oil level indicator I 1, flow transducer I 8, flow transducer II 10, hydrostatic sensor I 19, hydrostatic sensor IV 26, speed probe I 31, temperature transducer I 32, torque sensor I 33, hydrostatic sensor III 34, throttle valve III 35, hydrostatic sensor V 38, hydrostatic sensor VI 42, hydrostatic sensor VII 43, hydrostatic sensor VIII 44, temperature transducer II 48, hydrostatic sensor II 50; The signal output part of data collecting card II is connected with the signal input part of process control machine I through connection; Process control machine I, data collecting card II, PLC controller IV, analog signal output card III, oil hydraulic circuit VI are all affixed with transhipment vehicle frame V.
Oil hydraulic circuit VI is comprised of power source system a, fault acceleration branch road b, motor detection branch c, valve group detection branch d, pump detection branch e, oil temperature oil level indicator I 1, fuel tank I 3, fuel tank II 2, electricity liquid ratio relief valve I 4, oil temperature oil level indicator II 5, liquid proportional relief valve II 6, electro-hydraulic proportional reducing valve I 7, flow transducer I 8, electro-hydraulic proportional reducing valve II 9, flow transducer II 10, electricity liquid ratio relief valve III 11, electricity liquid ratio relief valve IV 12, and wherein oil temperature oil level indicator I 1 is connected respectively fuel tank I 3 and fuel tank II 2 with oil temperature oil level indicator II 5.
One end that the pending fault of power source system a accelerates variable displacement pump 16 import places is connected with fuel tank I 3 as filler opening, and filter I 13 imports of power source system a are at one end connected with fuel tank II 2 as filler opening.
18 of the filter II of power source system a are at one end connected with pump detection branch e as oil outlet connecting motor detection branch c, valve group detection branch d, 18 outlets of filter II connect 9 imports of electro-hydraulic proportional reducing valve II and connect, between filter II 18 and electro-hydraulic proportional reducing valve II 9, be provided with four bypasses, article one, bypass connects relief valve I 20, one-way valve I 21 and fuel tank II 2, second bypass connects 7 imports of electro-hydraulic proportional reducing valve I, article three, bypass connects 36 imports of electro-hydraulic proportional reducing valve IV, 19 imports of the 4th bypass connecting fluid pressure sensor I.
The pending fault of power source system a accelerates variable displacement pump 16 outlets and at one end connects fault acceleration branch road b, and 16 imports of pending fault acceleration variable displacement pump connect 22 outlets of throttle valve I, and pending fault accelerates variable displacement pump 16 and exports 25 imports of connection throttle valve II.
Between the relief valve I 20 of power source system a and one-way valve I 21, be provided with bypass branch road, bypass branch road connects 4 outlets of electricity liquid ratio relief valve I.
Fuel tank I 3 connects respectively fault and accelerates 22 imports of throttle valve I, 25 outlets of throttle valve II in branch road b.
8 outlets of flow transducer I and 6 imports of electricity liquid ratio relief valve II are 3-position 4-way solenoid directional control valve I 27P mouth and the T mouth of connecting motor detection branch c respectively.
Electro-hydraulic proportional reducing valve IV 36 imports of valve group detection branch d connect 18 outlets of filter II, 35 outlets of throttle valve III connect 4 imports of electricity liquid ratio relief valve I, 3-position 4-way solenoid directional control valve II 41P mouth connection traffic sensor II 10 outlets of valve group detection branch d, between 3-position 4-way solenoid directional control valve II 41P mouth and flow transducer II 10, be provided with bypass connecting fluid pressure sensor VII 43,3-position 4-way solenoid directional control valve II 41T mouth connects 11 imports of electricity liquid ratio relief valve III.
3-position 4-way solenoid directional control valve III 45P mouth connection traffic sensor II 10 outlets of pump detection branch e, between 3-position 4-way solenoid directional control valve II 41P mouth and flow transducer II 10, be provided with bypass connecting fluid pressure sensor VIII 44,3-position 4-way solenoid directional control valve III 45T mouth connects 12 imports of electricity liquid ratio relief valve IV, between 3-position 4-way solenoid directional control valve III 45T mouth and electricity liquid ratio relief valve IV 12, be connected two bypasses,, a bypass connecting fluid pressure sensor II 50, another bypass connects double overflow brake valve II 46B mouth.
Oil temperature oil level indicator I 1 is connected respectively fuel tank I 3 and fuel tank II 2 with oil temperature oil level indicator II 5; 7 outlet connection traffic sensor I 8 imports of electro-hydraulic proportional reducing valve I; 9 outlet connection traffic sensor II 10 imports of electro-hydraulic proportional reducing valve II; 12 outlets of electricity liquid ratio relief valve IV connect 4 imports of electricity liquid ratio relief valve I, between 12 outlets of electricity liquid ratio relief valve IV and 4 imports of electricity liquid ratio relief valve I, be provided with three bypasses, article one, bypass connects 11 outlets of electricity liquid ratio relief valve III, second bypass connects two-bit triplet solenoid directional control valve I 37B mouth, and the 3rd bypass connects 6 outlets of electricity liquid ratio relief valve II.
Power source system a accelerates variable displacement pump 16, motor 17, filter II 18, hydrostatic sensor I 19, relief valve I 20 and one-way valve I 21 by filter I 13, variable displacement pump I 14, transfer case 15, pending fault and forms, its middle filtrator I 13, variable displacement pump I 14, filter II 18, relief valve I 20 and one-way valve I 21 are connected successively, 21 outlets are connected fuel tank II 2 to 13 imports of filter I with one-way valve I, between filter II 18 and relief valve I 20, be provided with bypass connecting fluid pressure sensor I 19, variable displacement pump I 14 connects motor 17 through transfer case 15 right-hand members; 18 outlets of filter II connect 9 imports of electro-hydraulic proportional reducing valve II, between filter II 18 and electro-hydraulic proportional reducing valve II 9, be provided with four bypasses, article one, bypass is connected fuel tank II 2 through relief valve I 20 with one-way valve I 21, second bypass connects 7 imports of electro-hydraulic proportional reducing valve I, article three, bypass connects 35 imports of throttle valve III, 19 imports of the 4th bypass connecting fluid pressure sensor I; Pending fault accelerates variable displacement pump 16 imports and connects 22 outlets of throttle valve I, and pending fault accelerates variable displacement pump 16 outlets and connects 25 imports of throttle valve II, and pending fault accelerates variable displacement pump 16 and is connected with motor 17 through transfer case 15 left ends; One end that pending fault accelerates variable displacement pump 16 import places connects fuel tank I 3 as filler opening, and the one end at filter I 13 import places connects fuel tank II 2 as filler opening; Between relief valve I 20 and one-way valve I 21, be provided with bypass branch road and connect 4 imports of electricity liquid ratio relief valve I.
Fault accelerate branch road b by throttle valve I 22, U-shaped pipe manometer I 23, U-shaped pipe manometer II 24 and throttle valve II 25 form, wherein throttle valve I 22, pending fault accelerates variable displacement pump 16 and is connected successively with throttle valve II 25, 22 imports of throttle valve I are connected with fuel tank I 3 through oil pipe, 22 outlets of throttle valve I are accelerated variable displacement pump 16 imports with pending fault and are connected, 22 outlets of throttle valve I are accelerated set bypass branch road between variable displacement pump 16 imports with pending fault and are connected with U-shaped pipe manometer I 23, 25 imports of throttle valve II are accelerated variable displacement pump 16 outlets with pending fault and are connected, 25 imports of throttle valve II are accelerated set bypass branch road between variable displacement pump 16 outlets with pending fault and are connected with U-shaped pipe manometer II 24, 25 outlets of throttle valve II are connected with fuel tank I 3.
Motor detection branch c by hydrostatic sensor IV 26,3-position 4-way solenoid directional control valve I 27, double overflow brake valve I 28,2/2-way solenoid directional control valve I 29, motor I 30 to be measured, speed probe I 31, temperature transducer I 32, torque sensor I 33 and hydrostatic sensor III 34, formed, wherein 3-position 4-way solenoid directional control valve I 27P mouth connection traffic sensor I 8 outlets, are provided with bypass connecting fluid pressure sensor IV 26 between 3-position 4-way solenoid directional control valve I 27P mouth and flow transducer I 8; 3-position 4-way solenoid directional control valve I 27A mouth connects motor I to be measured 30 one end, between 3-position 4-way solenoid directional control valve I 27A mouth and motor I 30 to be measured, be provided with two bypasses, article one, bypass connects double overflow brake valve I 28A mouth, and another bypass connects 29 outlets of 2/2-way solenoid directional control valve I; Motor I to be measured 30 the other ends connect 3-position 4-way solenoid directional control valve I 27B mouths, be provided with bypass and be connected double overflow brake valve I 28C mouth between motor I 30 the other ends to be measured and 3-position 4-way solenoid directional control valve I 27B mouth; 3-position 4-way solenoid directional control valve I 27T mouth connects 6 imports of electricity liquid ratio relief valve II, between 3-position 4-way solenoid directional control valve I 27T mouth and electricity liquid ratio relief valve II 6, be provided with two bypasses,, a bypass connecting fluid pressure sensor III 34, another bypass connects double overflow brake valve I 28B mouth; 29 imports of 2/2-way solenoid directional control valve I connect double overflow brake valve I 28D mouth; Speed probe I 31, temperature transducer I 32 and torque sensor I 33 are connected with motor I 30 to be measured.
Valve group detection branch d by throttle valve III 35, electro-hydraulic proportional reducing valve IV 36, two-bit triplet solenoid directional control valve I 37, hydrostatic sensor V 38, treat that side valve group 39,2/2-way solenoid directional control valve II 40,3-position 4-way solenoid directional control valve II 41, hydrostatic sensor VI 42 and hydrostatic sensor VII 43 form, wherein 36 imports of electro-hydraulic proportional reducing valve IV connect 18 outlets of filter II; Two-bit triplet solenoid directional control valve I 37P mouth connects 36 outlets of electro-hydraulic proportional reducing valve IV, is provided with bypass branch road and is connected 35 imports of throttle valve III between two-bit triplet solenoid directional control valve I 37P mouth and electro-hydraulic proportional reducing valve IV 36; Two-bit triplet solenoid directional control valve I 37A mouth connects the guide oil control end treat side valve group 39, two-bit triplet solenoid directional control valve I 37A mouth and treat to be provided with bypass connecting fluid pressure sensor V 38 between the guide oil control end of side valve group 39; 10 outlets of 3-position 4-way solenoid directional control valve II 41P mouth connection traffic sensor II, are provided with bypass connecting fluid pressure sensor VII 43 between 3-position 4-way solenoid directional control valve II 41P mouth and flow transducer II 10; 3-position 4-way solenoid directional control valve II 41A mouth connects treats 39 imports of side valve group, 3-position 4-way solenoid directional control valve II 41A mouth with treat to be provided with between side valve group 39 bypass and be connected 2/2-way solenoid directional control valve II 40 and export; 3-position 4-way solenoid directional control valve II 41B mouth connects treats 39 outlets of side valve group, 3-position 4-way solenoid directional control valve II 41B mouth with treat that between side valve group 39, being provided with bypass is connected 40 imports of 2/2-way solenoid directional control valve II; 3-position 4-way solenoid directional control valve II 41T mouth connects 11 imports of electricity liquid ratio relief valve III, is provided with bypass connecting fluid pressure sensor VI 42 between 3-position 4-way solenoid directional control valve II 41T mouth and 11 imports of electricity liquid ratio relief valve III.
Pump detection branch e is comprised of hydrostatic sensor VIII 44,3-position 4-way solenoid directional control valve III 45, double overflow brake valve II 46,2/2-way solenoid directional control valve III 47, temperature transducer II 48, pump to be measured 49 and hydrostatic sensor II 50, wherein 3-position 4-way solenoid directional control valve III 45A mouth is connected with pump to be measured 49 one end that are connected with temperature transducer II 48, between 3-position 4-way solenoid directional control valve III 45A mouth and pump to be measured 49, be provided with two bypasses, article one, bypass connects double overflow brake valve II 46A mouth, and another bypass connects 47 outlets of 2/2-way solenoid directional control valve III; 3-position 4-way solenoid directional control valve III 45B mouth connects pump 49 the other ends to be measured, is provided with bypass and is connected double overflow brake valve II 46C mouth between 3-position 4-way solenoid directional control valve III 45B mouth and pump 49 the other ends to be measured; 3-position 4-way solenoid directional control valve III 45P mouth is connected with 10 outlets of flow transducer II, between 3-position 4-way solenoid directional control valve III 45P mouth and 10 outlets of flow transducer II, be provided with bypass connecting fluid pressure sensor VIII 44,3-position 4-way solenoid directional control valve III 45T mouth is connected with 12 imports of electricity liquid ratio relief valve IV, between 3-position 4-way solenoid directional control valve III 45T mouth and electricity liquid ratio relief valve IV 12, be provided with two bypasses,, a bypass connecting fluid pressure sensor II 50, second bypass connects double overflow brake valve II 46B mouth; 47 imports of 2/2-way solenoid directional control valve III connect double overflow brake valve II 46D mouth.
U-shaped pipe manometer I 23 is comprised of U-shaped plastic pipe I 51, cork stopper I 52, flexible pipe I 53, and wherein flexible pipe I 53 one end are tightly connected through cork stopper I 52 and U-shaped plastic pipe I 51.
U-shaped pipe manometer II 24 is comprised of U-shaped plastic pipe II 54, cork stopper II 55, flexible pipe II 56, and wherein flexible pipe II 56 one end are tightly connected through cork stopper II 55 and U-shaped plastic pipe II 54.
Claims (8)
1. a hydraulic system fast detecting and fault are accelerated combined system, it is characterized in that being comprised of process control machine (I), data collecting card (II), analog signal output card (III), PLC controller (IV), transhipment vehicle frame (V) and oil hydraulic circuit (VI), wherein the signal output part of process control machine (I) is connected with the signal input part of analog signal output card (III) with PLC controller (IV) through connection, the signal output of PLC controller (IV) is connected with each selector valve, electric-motor pump, the transfer case (15) of oil hydraulic circuit (VI) through connection, and selector valve comprises: 3-position 4-way solenoid directional control valve I (27), 2/2-way solenoid directional control valve I (29), two-bit triplet solenoid directional control valve (37), 2/2-way solenoid directional control valve II (40), 3-position 4-way solenoid directional control valve II (41), 3-position 4-way solenoid directional control valve III (45), 2/2-way solenoid directional control valve III (47), electric-motor pump comprises: variable displacement pump (14), pending fault accelerate variable displacement pump (16), the signal output of analog signal output card (III) is connected with each relief valve, the throttle valve of oil hydraulic circuit (VI) through connection, and relief valve comprises: electricity liquid ratio relief valve I (4), electricity liquid ratio relief valve II (6), electricity liquid ratio relief valve III (11), electricity liquid ratio relief valve IV (12), relief valve (20), throttle valve comprises: throttle valve I (22), throttle valve II (25), throttle valve III (35), each sensor of oil hydraulic circuit (VI) is connected with the signal input part of data collecting card (II) through connection, sensor comprises: flow transducer I (8), flow transducer II (10), hydrostatic sensor I (19), hydrostatic sensor IV (26), speed probe (31), temperature transducer I (32), torque sensor (33), hydrostatic sensor III (34), hydrostatic sensor V (38), hydrostatic sensor VI (42), hydrostatic sensor VII (43), hydrostatic sensor VIII (44), temperature transducer II (48), hydrostatic sensor II (50), the signal output part of data collecting card (II) is connected with the signal input part of process control machine (I) through connection, process control machine (I), data collecting card (II), PLC controller (IV), analog signal output card (III), oil hydraulic circuit (VI) are all affixed with transhipment vehicle frame (V), oil hydraulic circuit (VI) is by power source system (a), fault is accelerated branch road (b), motor detection branch (c), valve group detection branch (d), pump detection branch (e), oil temperature oil level indicator I (1), fuel tank I (3), fuel tank II (2), electricity liquid ratio relief valve I (4), oil temperature oil level indicator II (5), liquid proportional relief valve II (6), electro-hydraulic proportional reducing valve I (7), flow transducer I (8), electro-hydraulic proportional reducing valve II (9), flow transducer II (10), electricity liquid ratio relief valve III (11), electricity liquid ratio relief valve IV (12) forms, wherein oil temperature oil level indicator I (1) is connected respectively fuel tank I (3) and fuel tank II (2) with oil temperature oil level indicator II (5), one end that the pending fault of power source system (a) accelerates variable displacement pump (16) import place is connected with fuel tank I (3) as filler opening, and filter I (13) import of power source system (a) is at one end connected with fuel tank II (2) as filler opening, filter II (18) institute of power source system (a) is at one end as oil outlet connecting motor detection branch (c), valve group detection branch (d) and pump detection branch (e), filter II (18) outlet connects electro-hydraulic proportional reducing valve II (9) import and connects, between filter II (18) and electro-hydraulic proportional reducing valve II (9), be provided with four bypasses, article one, bypass connects relief valve (20), one-way valve (21) and fuel tank II (2), second bypass connects electro-hydraulic proportional reducing valve I (7) import, article three, bypass connects electro-hydraulic proportional reducing valve III (36) import, article four, bypass connecting fluid pressure sensor I (19) import, the pending fault of power source system (a) accelerates variable displacement pump (16) outlet and at one end connects fault acceleration branch road (b), pending fault accelerates variable displacement pump (16) import and connects throttle valve I (22) outlet, and pending fault accelerates variable displacement pump (16) outlet and connects throttle valve II (25) import, between the relief valve (20) of power source system (a) and one-way valve (21), be provided with bypass branch road, bypass branch road connects electricity liquid ratio relief valve I (4) outlet, fuel tank I (3) connects respectively fault and accelerates throttle valve I (22) import, throttle valve II (25) outlet in branch road (b), flow transducer I (8) outlet and electricity liquid ratio relief valve II (6) import be 3-position 4-way solenoid directional control valve I (27) P mouth and the T mouth of connecting motor detection branch (c) respectively, electro-hydraulic proportional reducing valve III (36) import of valve group detection branch (d) connects filter II (18) outlet, throttle valve III (35) outlet connects electricity liquid ratio relief valve I (4) import, 3-position 4-way solenoid directional control valve II (41) P mouth connection traffic sensor II (10) outlet of valve group detection branch (d), between 3-position 4-way solenoid directional control valve II (41) P mouth and flow transducer II (10), be provided with bypass connecting fluid pressure sensor VII (43), 3-position 4-way solenoid directional control valve II (41) T mouth connects electricity liquid ratio relief valve III (11) import, 3-position 4-way solenoid directional control valve III (45) P mouth connection traffic sensor II (10) outlet of pump detection branch (e), between 3-position 4-way solenoid directional control valve II (41) P mouth and flow transducer II (10), be provided with bypass connecting fluid pressure sensor VIII (44), 3-position 4-way solenoid directional control valve III (45) T mouth connects electricity liquid ratio relief valve IV (12) import, between 3-position 4-way solenoid directional control valve III (45) T mouth and electricity liquid ratio relief valve IV (12), be connected two bypasses,, a bypass connecting fluid pressure sensor II (50), another bypass connects double overflow brake valve II (46) B mouth, oil temperature oil level indicator I (1) is connected respectively fuel tank I (3) and fuel tank II (2) with oil temperature oil level indicator II (5), the import of electro-hydraulic proportional reducing valve I (7) outlet connection traffic sensor I (8), the import of electro-hydraulic proportional reducing valve II (9) outlet connection traffic sensor II (10), electricity liquid ratio relief valve IV (12) outlet connects electricity liquid ratio relief valve I (4) import, between electricity liquid ratio relief valve IV (12) outlet and electricity liquid ratio relief valve I (4) import, be provided with three bypasses, article one, bypass connects electricity liquid ratio relief valve III (11) outlet, second bypass connects two-bit triplet solenoid directional control valve (37) B mouth, and the 3rd bypass connects electricity liquid ratio relief valve II (6) outlet.
2. by hydraulic system fast detecting claimed in claim 1 and fault, accelerate combined system, it is characterized in that described power source system (a) is by filter I (13), variable displacement pump (14), transfer case (15), pending fault accelerates variable displacement pump (16), motor (17), filter II (18), hydrostatic sensor I (19), relief valve (20) and one-way valve (21) form, its middle filtrator I (13), variable displacement pump (14), filter II (18), relief valve (20) is connected successively with one-way valve (21), outlet is connected fuel tank II (2) with one-way valve (21) in filter I (13) import, between filter II (18) and relief valve (20), be provided with bypass connecting fluid pressure sensor I (19), variable displacement pump (14) connects motor (17) through transfer case (15) right-hand member, filter II (18) outlet connects electro-hydraulic proportional reducing valve II (9) and enters
Mouthful, between filter II (18) and electro-hydraulic proportional reducing valve II (9), be provided with four bypasses, article one, bypass is connected fuel tank II (2) through relief valve (20) with one-way valve (21), second bypass connects electro-hydraulic proportional reducing valve I (7) import, article three, bypass connects throttle valve III (35) import, the 4th bypass connecting fluid pressure sensor I (19) import; Pending fault accelerates variable displacement pump (16) import and connects throttle valve I (22) outlet, pending fault accelerates variable displacement pump (16) outlet and connects throttle valve II (25) import, and pending fault accelerates variable displacement pump (16) and is connected with motor (17) through transfer case (15) left end; One end that pending fault accelerates variable displacement pump (16) import place connects fuel tank I (3) as filler opening, and the one end at filter I (13) import place connects fuel tank II (2) as filler opening; Between relief valve (20) and one-way valve (21), be provided with bypass branch road and connect electricity liquid ratio relief valve I (4) import.
3. by hydraulic system fast detecting claimed in claim 1 and fault, accelerate combined system, it is characterized in that described fault acceleration branch road (b) is by throttle valve I (22), U-shaped pipe manometer I (23), U-shaped pipe manometer II (24) and throttle valve II (25) form, throttle valve I (22) wherein, pending fault accelerates variable displacement pump (16) and is connected successively with throttle valve II (25), throttle valve I (22) import is connected with fuel tank I (3) through oil pipe, throttle valve I (22) outlet is accelerated variable displacement pump (16) import with pending fault and is connected, throttle valve I (22) outlet is accelerated set bypass branch road between variable displacement pump (16) import with pending fault and is connected with U-shaped pipe manometer I (23), throttle valve II (25) import is accelerated variable displacement pump (16) outlet with pending fault and is connected, throttle valve II (25) import is accelerated set bypass branch road between variable displacement pump (16) outlet with pending fault and is connected with U-shaped pipe manometer II (24), throttle valve II (25) outlet is connected with fuel tank I (3).
4. by hydraulic system fast detecting claimed in claim 1 and fault, accelerate combined system, it is characterized in that described motor detection branch (c) is by hydrostatic sensor IV (26), 3-position 4-way solenoid directional control valve I (27), double overflow brake valve I (28), 2/2-way solenoid directional control valve I (29), motor to be measured (30), speed probe (31), temperature transducer I (32), torque sensor (33) and hydrostatic sensor III (34) form, wherein 3-position 4-way solenoid directional control valve I (27) P mouth connection traffic sensor I (8) outlet, between 3-position 4-way solenoid directional control valve I (27) P mouth and flow transducer I (8), be provided with bypass connecting fluid pressure sensor IV (26), 3-position 4-way solenoid directional control valve I (27) A mouth connects motor to be measured (30) one end, between 3-position 4-way solenoid directional control valve I (27) A mouth and motor to be measured (30), be provided with two bypasses, article one, bypass connects double overflow brake valve I (28) A mouth, and another bypass connects 2/2-way solenoid directional control valve I (29) outlet, motor to be measured (30) the other end connects 3-position 4-way solenoid directional control valve I (27) B mouth, is provided with bypass and is connected double overflow brake valve I (28) C mouth between motor to be measured (30) the other end and 3-position 4-way solenoid directional control valve I (27) B mouth, 3-position 4-way solenoid directional control valve I (27) T mouth connects electricity liquid ratio relief valve II (6) import, between 3-position 4-way solenoid directional control valve I (27) T mouth and electricity liquid ratio relief valve II (6), be provided with two bypasses,, a bypass connecting fluid pressure sensor III (34), another bypass connects double overflow brake valve I (28) B mouth, 2/2-way solenoid directional control valve I (29) import connects double overflow brake valve I (28) D mouth, speed probe (31), temperature transducer I (32) and torque sensor (33) are connected with motor to be measured (30).
5. by hydraulic system fast detecting claimed in claim 1 and fault, accelerate combined system, it is characterized in that described valve group detection branch (d) by throttle valve III (35), electro-hydraulic proportional reducing valve III (36), two-bit triplet solenoid directional control valve (37), hydrostatic sensor V (38), treat that side valve group (39), 2/2-way solenoid directional control valve II (40), 3-position 4-way solenoid directional control valve II (41), hydrostatic sensor VI (42) and hydrostatic sensor VII (43) form, wherein electro-hydraulic proportional reducing valve III (36) import connection filter II (18) exports; Two-bit triplet solenoid directional control valve (37) P mouth connects electro-hydraulic proportional reducing valve III (36) outlet, is provided with bypass branch road and is connected throttle valve III (35) import between two-bit triplet solenoid directional control valve (37) P mouth and electro-hydraulic proportional reducing valve III (36); Two-bit triplet solenoid directional control valve (37) A mouth connects the guide oil control end treat side valve group (39), two-bit triplet solenoid directional control valve (37) A mouth and treat to be provided with bypass connecting fluid pressure sensor V (38) between the guide oil control end of side valve group (39); 3-position 4-way solenoid directional control valve II (41) P mouth connection traffic sensor II (10) outlet, is provided with bypass connecting fluid pressure sensor VII (43) between 3-position 4-way solenoid directional control valve II (41) P mouth and flow transducer II (10); 3-position 4-way solenoid directional control valve II (41) A mouth connects treats side valve group (39) import, 3-position 4-way solenoid directional control valve II (41) A mouth with treat to be provided with between side valve group (39) bypass and be connected 2/2-way solenoid directional control valve II (40) and export; 3-position 4-way solenoid directional control valve II (41) B mouth connects treats side valve group (39) outlet, 3-position 4-way solenoid directional control valve II (41) B mouth with treat that between side valve group (39), being provided with bypass is connected 2/2-way solenoid directional control valve II (40) import; 3-position 4-way solenoid directional control valve II (41) T mouth connects electricity liquid ratio relief valve III (11) import, between 3-position 4-way solenoid directional control valve II (41) T mouth and electricity liquid ratio relief valve III (11) import, is provided with bypass connecting fluid pressure sensor VI (42).
6. by hydraulic system fast detecting claimed in claim 1 and fault, accelerate combined system, it is characterized in that described pump detection branch (e) is by hydrostatic sensor VIII (44), 3-position 4-way solenoid directional control valve III (45), double overflow brake valve II (46), 2/2-way solenoid directional control valve III (47), temperature transducer II (48), pump to be measured (49) and hydrostatic sensor II (50) form, wherein 3-position 4-way solenoid directional control valve III (45) A mouth is connected with pump to be measured (49) one end that is connected with temperature transducer II (48), between 3-position 4-way solenoid directional control valve III (45) A mouth and pump to be measured (49), be provided with two bypasses, article one, bypass connects double overflow brake valve II (46) A mouth, another bypass connects 2/2-way solenoid directional control valve III (47) outlet, 3-position 4-way solenoid directional control valve III (45) B mouth connects pump to be measured (49) the other end, is provided with bypass and is connected double overflow brake valve II (46) C mouth between 3-position 4-way solenoid directional control valve III (45) B mouth and pump to be measured (49) the other end, 3-position 4-way solenoid directional control valve III (45) P mouth is connected with flow transducer II (10) outlet, between 3-position 4-way solenoid directional control valve III (45) P mouth and flow transducer II (10) outlet, is provided with bypass connecting fluid pressure sensor VIII (44), 3-position 4-way solenoid directional control valve III (45) T mouth is connected with electricity liquid ratio relief valve IV (12) import, between 3-position 4-way solenoid directional control valve III (45) T mouth and electricity liquid ratio relief valve IV (12), be provided with two bypasses,, a bypass connecting fluid pressure sensor II (50), second bypass connects double overflow brake valve II (46) B mouth, 2/2-way solenoid directional control valve III (47) import connects double overflow brake valve II (46) D mouth.
7. by hydraulic system fast detecting claimed in claim 3 and fault, accelerate combined system, it is characterized in that described U-shaped pipe manometer I (23) is comprised of U-shaped plastic pipe I (51), cork stopper I (52), flexible pipe I (53), wherein flexible pipe I (53) one end is tightly connected through cork stopper I (52) and U-shaped plastic pipe I (51).
8. by hydraulic system fast detecting claimed in claim 3 and fault, accelerate combined system, it is characterized in that described U-shaped pipe manometer II (24) is comprised of U-shaped plastic pipe II (54), cork stopper II (55), flexible pipe II (56), wherein flexible pipe II (56) one end is tightly connected through cork stopper II (55) and U-shaped plastic pipe II (54).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420073979.0U CN203784020U (en) | 2014-02-20 | 2014-02-20 | Fast-detection and fault-acceleration compound system for hydraulic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420073979.0U CN203784020U (en) | 2014-02-20 | 2014-02-20 | Fast-detection and fault-acceleration compound system for hydraulic system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203784020U true CN203784020U (en) | 2014-08-20 |
Family
ID=51320212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420073979.0U Withdrawn - After Issue CN203784020U (en) | 2014-02-20 | 2014-02-20 | Fast-detection and fault-acceleration compound system for hydraulic system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203784020U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103836025A (en) * | 2014-02-20 | 2014-06-04 | 吉林大学 | Rapid detection and fault acceleration compound system of hydraulic system |
| CN113757200A (en) * | 2021-08-31 | 2021-12-07 | 三一汽车制造有限公司 | Hydraulic system, engineering machinery and control method thereof |
-
2014
- 2014-02-20 CN CN201420073979.0U patent/CN203784020U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103836025A (en) * | 2014-02-20 | 2014-06-04 | 吉林大学 | Rapid detection and fault acceleration compound system of hydraulic system |
| CN103836025B (en) * | 2014-02-20 | 2015-12-30 | 吉林大学 | Hydraulic system detects fast accelerates combined system with fault |
| CN113757200A (en) * | 2021-08-31 | 2021-12-07 | 三一汽车制造有限公司 | Hydraulic system, engineering machinery and control method thereof |
| CN113757200B (en) * | 2021-08-31 | 2023-05-12 | 三一汽车制造有限公司 | Hydraulic system, engineering machinery and control method of hydraulic system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103471829B (en) | A kind of test stand of multi-way valve of hydraulic excavator | |
| CN112213958B (en) | Electro-hydraulic control comprehensive simulation test platform | |
| CN112377487A (en) | Hydraulic comprehensive test platform | |
| CN103557204B (en) | A kind of hydraulicdirectional control valve contamination wear and Environment restore test stand | |
| CN105587714B (en) | A kind of servo valve hydraulic test system | |
| CN201396339Y (en) | Oil contamination-monitoring system for hydraulic system | |
| CN203906448U (en) | Hydraulic component performance testing system | |
| CN101539565B (en) | Oil pollution monitoring device of hydraulic system | |
| CN109058234B (en) | Performance test system and detection method for hydraulic system of electric proportional control valve compensation excavator | |
| CN203784020U (en) | Fast-detection and fault-acceleration compound system for hydraulic system | |
| CN106525141A (en) | Shield TBM oil liquid state on-line automatic monitoring system | |
| CN102944420A (en) | Dual-clutch automatic transmission hydraulic module performance test platform and method | |
| CN104535337A (en) | Hydraulic hybrid vehicle simulation test bed | |
| CN107165771A (en) | Wave power generation hydraulic PTO system synthesis experiment platform and its experimental method | |
| CN104481971A (en) | Torque-type hydraulic pump and hydraulic motor power recovery test platform | |
| CN104502131A (en) | Performance testing system for suction filter of speed changing box | |
| CN204572637U (en) | Adopt the construction machinery hydraulic system of load-sensitive | |
| CN206378160U (en) | A kind of shield TBM oil state online auto monitoring systems | |
| CN103836025B (en) | Hydraulic system detects fast accelerates combined system with fault | |
| CN101886640A (en) | Manual adjustable low-voltage three-way hydraulic drive system | |
| CN100574985C (en) | A kind of high speed feed movement load calibration instrument of numerical control machine | |
| CN102052365B (en) | Test bench for hydraulic excavator pump valve | |
| CN204312437U (en) | The synthesis energy saving experimental liquid pressure device of gear pump, relief valve and one-way valve reliability | |
| CN204512068U (en) | A kind of hydraulic pressure diagnosis apparatus of simulating hydraulic system fault | |
| CN114483563B (en) | Four-quadrant hydraulic pump performance optimization test system and method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140820 Effective date of abandoning: 20151230 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |