CN103335859B - Electric-controlled type EGR valve is performance test bed - Google Patents
Electric-controlled type EGR valve is performance test bed Download PDFInfo
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- CN103335859B CN103335859B CN201310262913.6A CN201310262913A CN103335859B CN 103335859 B CN103335859 B CN 103335859B CN 201310262913 A CN201310262913 A CN 201310262913A CN 103335859 B CN103335859 B CN 103335859B
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- 238000011056 performance test Methods 0.000 title claims abstract description 20
- 238000006073 displacement reaction Methods 0.000 claims abstract description 17
- 238000005070 sampling Methods 0.000 claims description 21
- 125000004122 cyclic group Chemical group 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000012360 testing method Methods 0.000 description 26
- 239000007789 gas Substances 0.000 description 12
- 238000002485 combustion reaction Methods 0.000 description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
- 239000001301 oxygen Substances 0.000 description 5
- 229910052760 oxygen Inorganic materials 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000008676 import Effects 0.000 description 3
- 230000002596 correlated effect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
- 239000003502 gasoline Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 206010067171 Regurgitation Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 238000010494 dissociation reaction Methods 0.000 description 1
- 230000005593 dissociations Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000003434 inspiratory effect Effects 0.000 description 1
- 230000001550 time effect Effects 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
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Abstract
The embodiment of the invention discloses a kind of electric-controlled type EGR valve performance test bed, comprise pick-up unit and electric-control system, pick-up unit comprises operating platform, EGR valve fixed mechanism, draft tube, escape pipe, vacuum pump, pressure transducer, differential pressure pick-up, flow sensor, displacement transducer, lateral cylinder and longitudinal cylinder; The inlet end of draft tube communicates with air, and the outlet side of draft tube is provided with a draft tube joint, and draft tube joint is connected with the output terminal of lateral cylinder by a horizontal support, and the outlet side of draft tube joint is towards EGR valve fixed mechanism; The inlet end of escape pipe is provided with an escape pipe joint, and escape pipe joint is connected with the output terminal of longitudinal cylinder by a longitudinal carrier.According to technical scheme of the present invention, by obtaining the suction inlet pressure, inlet outlet pressure differential, flow, feedback voltage, displacement and the anglec of rotation that are connected into the pick-up unit of EGR valve, the performance of electric-controlled type EGR valve can be tested out.
Description
Technical field
The present invention relates to the checkout equipment of EGR valve, particularly relate to electric-controlled type EGR valve performance test bed.
Background technology
Exhaust gas recirculatioon (ExhaustGasRecirculation, EGR) for a part for Exhaust Gas is isolated by petrol and diesel oil Vehicular internal combustion engine (comprising automobile and truck) after combustion and import the technology that air inlet side makes it burn once again, fundamental purpose is that the oxides of nitrogen (NOx) reduced in Exhaust Gas can improve rate of fuel consumption rate with when sharing sub-load.In the gas that internal combustion engine is discharged after combustion, oxygen level is extremely low or even do not have, oxygen concentration in air-breathing can be made after this Exhaust Gas mixes with air-breathing to reduce, therefore following phenomenon can be produced: the oxygen level lower than air (the highest) temperature when burning can reduce, and can suppress the generation of oxides of nitrogen (NOx).When temperature of combustion reduces, the heat energy of cylinder and combustion chamber wall surface, piston face is dispersed and can be reduced, and the loss caused because of thermal dissociation in addition also has and slightly reduces.In order to provide the amount of oxygen of equivalent (in order to obtain exerting oneself of same axle) during its sub-load of fuel oil engine non-EGR inherent for cylinder, therefore need to be opened by throttle greatly, the oil suction (throttle) during result air-breathing is lost lower, and rate of fuel consumption rate can improve.This is oxygen that piston sucks under one stroke when reducing, can as use little air displacement engine adopt lower accelerate to advance time effect.The regurgitation volume of EGR is 15% to the maximum according under the situation (in inspiratory capacity) of fuel oil engine, during idling and high capacity time then can stop.With the large-sized diesel car that vehicle weight engine output power is less, its engine load is higher, also often can use EGR technology to reach air capacity standard.
Therefore, the many amount of exhaust gas recirculation being used for controlling to feed back to gas handling system by installing EGR valve on gasoline engine of prior art.The high temperature oil steam that engine cylinder-body produces can be guided to inlet manifold and carry out burning to improve intake air temperature by EGR valve, combustible exhaust gas burns, engine operating efficiency can be improved and improve burning situation, and reduce engine burden and effectively reduce engine blow-by gas, extend each parts serviceable life.The EGR valve that performance is qualified just can achieve the above object.How guaranteed performance is qualified, must equipment Inspection after testing.EGR valve divides mechanical type and electric-controlled type two kinds, and there is no the checkout equipment for electric-controlled type EGR valve in prior art, by manual detection, efficiency is low, and error is large.
Summary of the invention
The present invention is directed to deficiency of the prior art, provide the electric-controlled type EGR valve that a kind of efficiency is high, error is little performance test bed.
In order to solve the problems of the technologies described above, the present invention is solved by following technical proposals:
Electric-controlled type EGR valve is performance test bed, comprise pick-up unit and electric-control system, described pick-up unit comprises operating platform, EGR valve fixed mechanism, draft tube, escape pipe, vacuum pump, pressure transducer, differential pressure pick-up, flow sensor, displacement transducer, lateral cylinder and longitudinal cylinder; The inlet end of described draft tube communicates with air, the outlet side of described draft tube is provided with a draft tube joint, described draft tube joint is connected with the output terminal of lateral cylinder by a horizontal support, and do horizontal rectilinear motion by lateral cylinder driving, the outlet side of described draft tube joint is towards EGR valve fixed mechanism; The inlet end of described escape pipe is provided with an escape pipe joint, and described escape pipe joint is connected with the output terminal of longitudinal cylinder by a longitudinal carrier, and does vertical linear motion by longitudinal air cylinder driven, and the inlet end of described escape pipe joint is towards EGR valve fixed mechanism; The outlet side of described escape pipe is connected with the suction end of vacuum pump; Described pressure transducer is located on escape pipe joint; Described differential pressure pick-up is connected with No. one, differential pressure measuring pipe and No. two, differential pressure measuring pipe, the inlet end of a described differential pressure measuring pipe is connected with draft tube joint, and the inlet end of described differential pressure measuring No. two pipes is connected with escape pipe joint; Described flow sensor is located on the tube wall in escape pipe stage casing; Institute's displacement sensors is located at the inside of escape pipe joint outlet side; Described pressure transducer, differential pressure pick-up, flow sensor, displacement transducer, lateral cylinder are connected with electric-control system with longitudinal cylinder.
As preferably, described electric-control system comprises EGR valve connection terminal, simulating signal sampling board, multifunctional control board, frequency converter, safe grating controller, first programmable power supply, second programmable power supply, industrial computer and display, the end of incoming cables U1 of described frequency converter, V1 with W1 is connected three-phase input power respectively by line, the terminals of the leading-out terminal U2 of frequency converter, V2 and W2 difference vacuum pump (3)
The IN0 end of described multifunctional control board connects the three-phase input power button of frequency converter by K switch M1, IN1 end connects manual/auto button by switch S B4, IN2 end connects scram button by switch S P1, IN3 end connects the OSSD1 end of safe grating controller, IN4 end connects the left window shift knob of pick-up unit by switch S B4, IN5 connects the right window shift knob of pick-up unit by switch S B5, RL1+, RL1-connects lateral cylinder, RL2+, RL2-connects lateral cylinder, RL3+, RL3-connects red display lamp, RL4+, RL4-connects yellow display lamp, RL5+, RL5-connects green display lamp, RL6+, RL6-connects hummer, described multifunctional control board is provided with two power ends and connects 24V DC voltage and 12V alternating voltage respectively,
First programmable power supply is that 0-20V direct current is controlled, second programmable power supply is that 0-30V direct current is controlled, the 5V lead-out terminal of described first programmable power supply connects the 2nd terminal of EGR valve connection terminal, the com end of the first programmable power supply connects the 3rd terminal of EGR valve connection terminal and the 22nd terminal of simulating signal sampling board, the 0-24V lead-out terminal of described second programmable power supply connects the 6th terminal of EGR valve connection terminal and connects the 9th terminal of simulating signal sampling board after being connected in series the first resistance R1 and the second resistance R2, the com end of the first programmable power supply connects the 4th terminal of EGR valve connection terminal and the 9th terminal of simulating signal sampling board, 1st terminal of described simulating signal sampling board gathers the output signal of negative pressure transducer, 2nd terminal of described simulating signal sampling board gathers the output signal of differential pressure pick-up, the output signal of the 3rd terminal acquisition stream quantity sensor of described simulating signal sampling board, 4th terminal of described collection of simulant signal board gathers the output signal of linear displacement transducer, described angular transducer gathers EGR valve coil voltage,
Described multifunctional control board, frequency converter, the first programmable power supply, the second programmable power supply is connected with industrial computer by RS485 universal serial bus, and the measurement data that described industrial computer obtains is shown by display.
As preferably, described pick-up unit also comprises feedback voltage data acquisition line concentration, and described gathering line one end can be connected with the feedback voltage signal line of EGR valve, and the other end is connected with the data acquisition board in electric-control system.
As preferably, described vacuum pump is water-ring vacuum pump, and the exhaust end of described water-ring vacuum pump is connected with a cyclic water tank.
As preferably, described longitudinal carrier comprises two support columns being fixed on operating platform, the first transverse slat being fixed on two support columns, the two longitudinal slide bars be slidably connected with the first transverse slat, to fix with two longitudinal slide bar lower ends and the second transverse slat fixed with longitudinal cylinder output terminal, two longitudinal rods fixed with the second transverse slat lower surface and three transverse slat fixing with two longitudinal rod lower ends, and described 3rd transverse slat is provided with the mounting hole for fixing escape pipe joint.
As preferably, described horizontal support comprises two slide blocks, two horizontal sliding bars be connected with two skid, the first stringer board fixed with horizontal sliding bar front end and fixes with horizontal sliding bar rear end and second stringer board fixing with lateral cylinder output terminal, and described first stringer board is provided with the mounting hole for fixing draft tube joint.
As preferably, described second stringer board is fixed with a cross bar towards lateral cylinder side, and described lateral cylinder is provided with the 3rd stringer board, and described 3rd stringer board is provided with the slide opening be slidably matched with cross bar.
As preferably, described EGR valve fixed mechanism comprises the base being fixed on operating platform and the some support columns being fixed on base, and the height of described each support column and the shape of relative position and EGR valve shell adapt.
As preferably, described EGR valve fixed mechanism comprises the base being fixed on operating platform, two pillars being fixed on base front portion and is fixed on base rear portion and the two triangle stringer board fixing with two pillars, and the top of described two pillars is provided with register pin; Two domatic bearings are provided with below described horizontal support and lateral cylinder, described domatic bottom surface of support saddle is fixed on operating platform, end face is provided with first domatic and second domatic, described first domatic and second domatic between form ladder, two slide blocks of described horizontal support are fixed on the first domatic of two domatic bearings, and the base of described lateral cylinder is fixed on the second domatic of two domatic bearings.
As preferably, described EGR valve fixed mechanism comprises the base being fixed on operating platform and the annular boss being fixed on base front portion, and described annular boss upper surface is provided with register pin.
As preferably, the L shape connecting pipe that described EGR valve fixed mechanism comprises the base being fixed on operating platform, two stringer boards being fixed on base front portion and is set up on stringer board, described stringer board top is provided with the arcwall face contacted with L shape connecting pipe tube wall, and the rear portion of described base is also provided with angular transducer.
According to technical scheme of the present invention, there is following beneficial effect:
(1) can by obtaining the suction inlet pressure, inlet outlet pressure differential, flow, feedback voltage, displacement and the anglec of rotation that are connected into the pick-up unit of EGR valve, the properties that can test out electric-controlled type EGR valve is as follows: 1. gas outlet pressure; 2. import and export differential pressure; 3.EGR valve flow; 4. feedback voltage (aperture); The 5.EGR lift of a valve; 6. the anglec of rotation of butterfly valve; 7.EGR valve cut-in voltage; The 8.EGR threshold switch response time; The 9.EGR valve linearity; 10.EGR valve durability test; 11. flows and feedback voltage relation curve; 12. feedback voltages and lift relation curve; 13. flows and difference pressure relationships curve; 14. flows and lift relation curve;
(2) this test board can do above-mentioned performance test to five kinds of dissimilar EGR valve, manually can change frock clamp, and arrange different parameters to test.Parameter can be preserved in power-off, and test data can form examining report, and can preserve correlation graph, figure, is used as to analyze further;
(3) test board is with safety feature: rear safety door/window, front safe grating.Once there is foreign matter at rear opening of doors and windows or grating place, front, machine meeting automatic alarm, and the relevant prompting of display.Thus ensure the safety of operator;
(4) this test board provides manual test individual feature, or automatically tests single or multiple function;
(5) this test board can locate the opening degree of EGR valve valve block accurately, can be positioned any point and carry out correlated performance test within the scope of total lift;
(6) this test board exportable different DC voltage (0-24) V, and manually or automatically can export different dutycycles (0-99%) by regulating impulse voltage;
(7) this test board regulates different flow values by Frequency Converter Control, forms different differential pressures.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention.
Fig. 2 is the structural representation of longitudinal carrier in the embodiment of the present invention.
Fig. 3 is the structural representation of horizontal support in the embodiment of the present invention.
Fig. 4 is the structural representation of EGR valve fixed mechanism in the embodiment of the present invention 1.
Fig. 5 is the structural representation of EGR valve fixed mechanism in the embodiment of the present invention 2.
Fig. 6 is the structural representation of domatic bearing in the embodiment of the present invention 2.
Fig. 7 is the structural representation of EGR valve fixed mechanism in the embodiment of the present invention 3.
Fig. 8 is the structural representation of EGR valve fixed mechanism in the embodiment of the present invention 4.
Fig. 9 is the electrical control system structure schematic diagram of the embodiment of the present invention.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the present invention is described in further detail:
Embodiment 1
Electric-controlled type EGR valve is performance test bed, as Figure 1-4, comprise pick-up unit and electric-control system, described pick-up unit comprises operating platform, EGR valve fixed mechanism, draft tube 1, escape pipe 2, vacuum pump 3, pressure transducer 4, differential pressure pick-up 5, flow sensor 6, displacement transducer, lateral cylinder 7, longitudinal cylinder 8 and feedback voltage data acquisition line concentration; The inlet end of described draft tube 1 communicates with air, the outlet side of described draft tube is provided with a draft tube joint 11, described draft tube joint 11 is connected with the output terminal of lateral cylinder 7 by a horizontal support, and do horizontal rectilinear motion by lateral cylinder driving, the outlet side of described draft tube joint is towards EGR valve fixed mechanism; The inlet end of described escape pipe 2 is provided with an escape pipe joint 21, described escape pipe joint 21 is connected with the output terminal of longitudinal cylinder 8 by a longitudinal carrier, and doing vertical linear motion by longitudinal air cylinder driven, the inlet end of described escape pipe joint is towards EGR valve fixed mechanism; The outlet side of described escape pipe is connected with the suction end of vacuum pump 3; Described pressure transducer 4 is located on escape pipe joint 21; Described differential pressure pick-up 5 is connected with differential pressure measuring pipe 51 and differential pressure measuring No. two pipes 52, the inlet end of a described differential pressure measuring pipe 51 is connected with draft tube joint 11, and the inlet end of described differential pressure measuring No. two pipes 52 is connected with escape pipe joint 21; Described flow sensor 6 is located on the tube wall in escape pipe stage casing; Institute's displacement sensors is located at the inside of escape pipe joint 21 outlet side; Described pressure transducer 4, differential pressure pick-up (5), flow sensor 6, displacement transducer, lateral cylinder 7 are connected with electric-control system with longitudinal cylinder 8; Described gathering line one end can be connected with the feedback voltage signal line of EGR valve, and the other end is connected with the data acquisition board in electric-control system; Described vacuum pump 3 is water-ring vacuum pump, and the exhaust end of described water-ring vacuum pump is connected with a cyclic water tank.
Described longitudinal carrier comprises two support columns 81 being fixed on operating platform, the first transverse slat 82 being fixed on two support columns, the two longitudinal slide bars 83 be slidably connected with the first transverse slat, to fix with two longitudinal slide bar lower ends and the second transverse slat 84 fixed with longitudinal cylinder output terminal, two longitudinal rods 85 fixed with the second transverse slat lower surface and three transverse slat 86 fixing with two longitudinal rod lower ends, and described 3rd transverse slat 86 is provided with the mounting hole for fixing escape pipe joint 21.
Described horizontal support comprises two slide blocks 71, two horizontal sliding bars 72 be connected with two skid, the first stringer board 73 fixed with horizontal sliding bar front end and fixes with horizontal sliding bar rear end and second stringer board 74 fixing with lateral cylinder 7 output terminal, and described first stringer board 73 is provided with the mounting hole for fixing draft tube joint 11.Described second stringer board 74 is fixed with a cross bar 75 towards lateral cylinder side, and described lateral cylinder 7 is provided with the 3rd stringer board 76, and described 3rd stringer board 76 is provided with the slide opening be slidably matched with cross bar 75.
EGR valve fixed mechanism comprises the base 91 being fixed on operating platform and the annular boss 96 being fixed on base front portion, and described annular boss upper surface is provided with register pin.
With reference to figure 9, wherein electric-control system comprises EGR valve connection terminal, simulating signal sampling board, multifunctional control board, frequency converter, safe grating controller, first programmable power supply, second programmable power supply, industrial computer and display, the end of incoming cables U1 of frequency converter, V1 with W1 is connected three-phase input power respectively by line, the leading-out terminal U2 of frequency converter, the terminals of V2 and W2 difference vacuum pump 3, the IN0 end of multifunctional control board connects the three-phase input power button of frequency converter by K switch M1, IN1 end connects manual/auto button by switch S B4, IN2 end connects scram button by switch S P1, IN3 end connects the OSSD1 end of safe grating controller, IN4 end connects the left window shift knob of pick-up unit by switch S B4, IN5 connects the right window shift knob of pick-up unit by switch S B5, RL1+, RL1-connects lateral cylinder, RL2+, RL2-connects lateral cylinder, RL3+, RL3-connects red display lamp, RL4+, RL4-connects yellow display lamp, RL5+, RL5-connects green display lamp, RL6+, RL6-connects hummer, multifunctional control board is provided with two power ends and connects 24V DC voltage and 12V alternating voltage respectively, first programmable power supply is that 0-20V direct current is controlled, second programmable power supply is that 0-30V direct current is controlled, the 5V lead-out terminal of the first programmable power supply connects the 2nd terminal of EGR valve connection terminal, the com end of the first programmable power supply connects the 3rd terminal of EGR valve connection terminal and the 22nd terminal of simulating signal sampling board, the 0-24V lead-out terminal of the second programmable power supply connects the 6th terminal of EGR valve connection terminal and connects the 9th terminal of simulating signal sampling board after being connected in series the first resistance R1 and the second resistance R2, the com end of the first programmable power supply connects the 4th terminal of EGR valve connection terminal and the 9th terminal of simulating signal sampling board, 1st terminal of simulating signal sampling board gathers the output signal of negative pressure transducer, 2nd terminal of simulating signal sampling board gathers the output signal of differential pressure pick-up, the output signal of the 3rd terminal acquisition stream quantity sensor of simulating signal sampling board, 4th terminal of collection of simulant signal board gathers the output signal of linear displacement transducer, angular transducer gathers EGR valve coil voltage, multifunctional control board, frequency converter, the first programmable power supply, and the second programmable power supply is connected with industrial computer by RS485 universal serial bus, and the measurement data that industrial computer obtains is shown by display.
During use, by electric-controlled type EGR valve clamping on the annular boss 96 of EGR valve fixed mechanism, and the feedback voltage signal line of electric-controlled type EGR valve is connected with feedback voltage data acquisition line concentration; Open lateral cylinder 7 and longitudinal cylinder 8 again, draft tube joint 11 is connected with electric-controlled type EGR valve with escape pipe joint 21; Open vacuum pump again, form gas circuit; Open each sensor again, suction inlet pressure, inlet outlet pressure differential, flow, feedback voltage and displacement can be obtained, thus test out the performance of electric-controlled type EGR valve.
By the electric-controlled type EGR valve Testing Platform of above embodiment, be applicable to the detection (comprising gasoline and diesel engine) of various types of EGR valve of automatically controlled EGR series.The ruuning situation of EGR valve in waste gas circulation can be simulated, artificially can test most performances of EGR valve by automatic or manual, as: 1. gas outlet pressure; 2. import and export differential pressure; 3.EGR valve flow; 4. feedback voltage (aperture); The 5.EGR lift of a valve; 6. the anglec of rotation of butterfly valve; 7.EGR valve cut-in voltage; The 8.EGR threshold switch response time; The 9.EGR valve linearity; 10.EGR valve durability test; 11. flows and feedback voltage relation curve; 12. feedback voltages and lift relation curve; 13. flows and difference pressure relationships curve; 14. flows and lift relation curve.Above-mentioned performance test can be done to five kinds of dissimilar EGR valve, manually can change frock clamp, and arrange different parameters to test.Parameter can be preserved in power-off, and test data can form examining report, and can preserve correlation graph, figure, is used as to analyze further.Test board is with safety feature: rear safety door/window, front safe grating.Once there is foreign matter at rear opening of doors and windows or grating place, front, machine meeting automatic alarm, and the relevant prompting of display.Thus ensure the safety of operator.This test board provides manual test individual feature, or automatically tests single or multiple function.This test board can locate the opening degree of EGR valve valve block accurately, can be positioned any point and carry out correlated performance test within the scope of total lift.This test board exportable different DC voltage (0-24) V, and manually or automatically can export different dutycycles (0-99%) by regulating impulse voltage.This test board, by the adjustable different flow value of frequency-variable controller, forms different differential pressures.
Embodiment 2
On the basis of embodiment 1, the fixed mechanism of EGR valve is replaced with following structure.
As shown in Figure 5,6, EGR valve fixed mechanism comprises the base 91 being fixed on operating platform, two pillars 93 being fixed on base front portion and is fixed on base rear portion and the two triangle stringer board 94 fixing with two pillars, and the top of described two pillars 93 is provided with register pin; Two domatic bearings are provided with below described horizontal support and lateral cylinder, described domatic bottom surface of support saddle is fixed on operating platform, end face is provided with first domatic 951 and second domatic 952, described first domatic and second domatic between form ladder, two slide blocks 71 of described horizontal support are fixed on first domatic 951 of two domatic bearings, and the base of described lateral cylinder 7 is fixed on second domatic 952 of two domatic bearings.
Embodiment 3
On the basis of embodiment 1, the fixed mechanism of EGR valve is replaced with following structure.
As shown in Figure 7, EGR valve fixed mechanism comprises the base 91 being fixed on operating platform and the some support columns 92 being fixed on base, and the height of described each support column and the shape of relative position and EGR valve shell adapt.
Embodiment 4
On the basis of embodiment 1, the fixed mechanism of EGR valve is replaced with following structure.
As shown in Figure 8, the L shape connecting pipe (98) that EGR valve fixed mechanism comprises the base (91) being fixed on operating platform, two stringer boards (97) being fixed on base front portion and is set up on stringer board, described stringer board (97) top is provided with the arcwall face contacted with L shape connecting pipe tube wall, and the rear portion of described base (91) is also provided with angular transducer (99).
In a word, the foregoing is only preferred embodiment of the present invention, all equalizations done according to the present patent application the scope of the claims change and modify, and all should belong to the covering scope of patent of the present invention.
Claims (9)
1. electric-controlled type EGR valve is performance test bed, comprise pick-up unit and electric-control system, it is characterized in that: described pick-up unit comprises operating platform, EGR valve fixed mechanism, draft tube (1), escape pipe (2), vacuum pump (3), pressure transducer (4), differential pressure pick-up (5), flow sensor (6), displacement transducer, lateral cylinder (7) and longitudinal cylinder (8); The inlet end of described draft tube (1) communicates with air, the outlet side of described draft tube is provided with a draft tube joint (11), described draft tube joint (11) is connected by the output terminal of a horizontal support with lateral cylinder (7), and do horizontal rectilinear motion by lateral cylinder driving, the outlet side of described draft tube joint is towards EGR valve fixed mechanism; The inlet end of described escape pipe (2) is provided with an escape pipe joint (21), described escape pipe joint (21) is connected by the output terminal of a longitudinal carrier with longitudinal cylinder (8), and doing vertical linear motion by longitudinal air cylinder driven, the inlet end of described escape pipe joint is towards EGR valve fixed mechanism; The outlet side of described escape pipe is connected with the suction end of vacuum pump (3); Described pressure transducer (4) is located on escape pipe joint (21); Described differential pressure pick-up (5) is connected with No. one, differential pressure measuring pipe (51) and No. two, differential pressure measuring pipe (52), the inlet end of No. one, described differential pressure measuring pipe (51) is connected with draft tube joint (11), and the inlet end of No. two, described differential pressure measuring pipe (52) is connected with escape pipe joint (21); Described flow sensor (6) is located on the tube wall in escape pipe stage casing; Institute's displacement sensors is located at the inside of escape pipe joint (21) outlet side; Described pressure transducer (4), differential pressure pick-up (5), flow sensor (6), displacement transducer, lateral cylinder (7) are connected with electric-control system with longitudinal cylinder (8);
Described electric-control system comprises EGR valve connection terminal, simulating signal sampling board, multifunctional control board, frequency converter, safe grating controller, the first programmable power supply, the second programmable power supply, industrial computer and display, the end of incoming cables U1 of described frequency converter, V1 with W1 is connected three-phase input power respectively by line, the leading-out terminal U2 of frequency converter, V2 with W2 is connected the terminals of vacuum pump (3) respectively
The IN0 end of described multifunctional control board connects the three-phase input power button of frequency converter by K switch M1, IN1 end connects manual/auto button by switch S B4, IN2 end connects scram button by switch S P1, IN3 end connects the OSSD1 end of safe grating controller, IN4 end connects the left window shift knob of pick-up unit by switch S B4, IN5 connects the right window shift knob of pick-up unit by switch S B5, RL1+, RL1-connects lateral cylinder, RL2+, RL2-connects lateral cylinder, RL3+, RL3-connects red display lamp, RL4+, RL4-connects yellow display lamp, RL5+, RL5-connects green display lamp, RL6+, RL6-connects hummer, described multifunctional control board is provided with two power ends and connects 24V DC voltage and 12V alternating voltage respectively,
First programmable power supply is that 0-20V direct current is controlled, second programmable power supply is that 0-30V direct current is controlled, the 5V lead-out terminal of described first programmable power supply connects the 2nd terminal of EGR valve connection terminal, the com end of the first programmable power supply connects the 3rd terminal of EGR valve connection terminal and the 22nd terminal of simulating signal sampling board, the 0-24V lead-out terminal of described second programmable power supply connects the 6th terminal of EGR valve connection terminal and connects the 9th terminal of simulating signal sampling board after being connected in series the first resistance R1 and the second resistance R2, the com end of the first programmable power supply connects the 4th terminal of EGR valve connection terminal and the 9th terminal of simulating signal sampling board, 1st terminal of described simulating signal sampling board gathers the output signal of negative pressure transducer, 2nd terminal of described simulating signal sampling board gathers the output signal of differential pressure pick-up, the output signal of the 3rd terminal acquisition stream quantity sensor of described simulating signal sampling board, 4th terminal of described collection of simulant signal board gathers the output signal of linear displacement transducer, angular transducer gathers EGR valve coil voltage, described multifunctional control board, frequency converter, the first programmable power supply, and the second programmable power supply is connected with industrial computer by RS485 universal serial bus, and the measurement data that described industrial computer obtains is shown by display.
2. electric-controlled type EGR valve according to claim 1 is performance test bed, it is characterized in that: described pick-up unit also comprises feedback voltage data acquisition line concentration, described feedback voltage data acquisition line concentration one end can be connected with the feedback voltage signal line of EGR valve, and the other end is connected with the data acquisition board in electric-control system.
3. electric-controlled type EGR valve according to claim 1 is performance test bed, it is characterized in that: described vacuum pump (3) is water-ring vacuum pump, and the exhaust end of described water-ring vacuum pump is connected with a cyclic water tank.
4. the electric-controlled type EGR valve according to claim 1 or 2 or 3 is performance test bed, it is characterized in that: described longitudinal carrier comprises two support columns (81) being fixed on operating platform, be fixed on first transverse slat (82) of two support columns, be slidably connected with the first transverse slat two longitudinal slide bars (83), fix with two longitudinal slide bar lower ends and second transverse slat (84) fixing with longitudinal cylinder output terminal, two longitudinal rods (85) fixing with the second transverse slat lower surface and three transverse slat (86) fixing with two longitudinal rod lower ends, described 3rd transverse slat (86) is provided with the mounting hole for fixing escape pipe joint (21).
5. electric-controlled type EGR valve according to claim 4 is performance test bed, it is characterized in that: described horizontal support comprises two slide blocks (71), two horizontal sliding bars (72) be connected with two skid, first stringer board (73) fixing with horizontal sliding bar front end and fixing with horizontal sliding bar rear end and second stringer board (74) fixing with lateral cylinder (7) output terminal, described first stringer board (73) is provided with the mounting hole for fixing draft tube joint (11), described second stringer board (74) is fixed with a cross bar (75) towards lateral cylinder side, described lateral cylinder (7) is provided with the 3rd stringer board (76), described 3rd stringer board (76) is provided with the slide opening be slidably matched with cross bar (75).
6. electric-controlled type EGR valve according to claim 5 is performance test bed, it is characterized in that: described EGR valve fixed mechanism comprises the base (91) being fixed on operating platform and the some support columns (92) being fixed on base, and the height of described each support column and the shape of relative position and EGR valve shell adapt.
7. electric-controlled type EGR valve according to claim 5 is performance test bed, it is characterized in that: described EGR valve fixed mechanism comprises the base (91) being fixed on operating platform, be fixed on two pillars (93) of base front portion and be fixed on base rear portion and the two triangle stringer board (94) fixing with two pillars, the top of described two pillars (93) is provided with register pin, two domatic bearings are provided with below described horizontal support and lateral cylinder, described domatic bottom surface of support saddle is fixed on operating platform, end face is provided with first domatic (951) and second domatic (952), described first domatic and second domatic between form ladder, two slide blocks (71) of described horizontal support are fixed on first domatic (951) of two domatic bearings, the base of described lateral cylinder (7) is fixed on second domatic (952) of two domatic bearings.
8. electric-controlled type EGR valve according to claim 5 is performance test bed, it is characterized in that: described EGR valve fixed mechanism comprises the base (91) being fixed on operating platform and the annular boss (96) being fixed on base front portion, and described annular boss upper surface is provided with register pin.
9. electric-controlled type EGR valve according to claim 5 is performance test bed, it is characterized in that: the L shape connecting pipe (98) that described EGR valve fixed mechanism comprises the base (91) being fixed on operating platform, two stringer boards (97) being fixed on base front portion and is set up on stringer board, described stringer board (97) top is provided with the arcwall face contacted with L shape connecting pipe tube wall, and the rear portion of described base (91) is also provided with angular transducer (99).
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103913308A (en) * | 2014-04-25 | 2014-07-09 | 无锡隆盛科技股份有限公司 | Method for detecting response time of position feedback type EGR valve |
| CN103926070B (en) * | 2014-04-25 | 2016-03-23 | 无锡隆盛科技股份有限公司 | Band position feedback type EGR valve response time proving installation |
| CN106050486A (en) * | 2016-08-01 | 2016-10-26 | 无锡隆盛科技股份有限公司 | EGR valve opening force detection device |
| CN106323613B (en) * | 2016-08-23 | 2020-01-31 | 武汉钢铁有限公司 | measuring method and device for response time of water valve of ultra-fast cooling system |
| CN111693275A (en) * | 2020-05-09 | 2020-09-22 | 山东泰展机电科技股份有限公司 | EGR valve performance test system and use method thereof |
| CN111366355A (en) * | 2020-05-28 | 2020-07-03 | 天津美腾科技股份有限公司 | Device and method for testing performance of electromagnetic valve |
| CN111947916A (en) * | 2020-07-30 | 2020-11-17 | 黄山双桦动林压缩机有限公司 | Variable displacement compressor flow sensor performance testing device and testing method thereof |
| CN112855390A (en) * | 2021-03-17 | 2021-05-28 | 太仓源凯汽车配件有限公司 | EGR valve on-line measuring platform |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1068652A (en) * | 1991-06-10 | 1993-02-03 | 基斯通国际集团公司 | The method and apparatus of monitoring recirculation control system performance |
| CN201681129U (en) * | 2010-05-07 | 2010-12-22 | 无锡隆盛科技有限公司 | Electric EGR valve detection platform |
| CN202350987U (en) * | 2011-11-22 | 2012-07-25 | 宜宾天瑞达汽车零部件有限公司 | Negative-pressure exhaust gas recycle (EGR) valve leakage detection craft equipment |
| CN203337401U (en) * | 2013-06-27 | 2013-12-11 | 新昌县瑞宏自动化设备有限公司 | Electric control EGR (Exhaust Gas Recirculation) valve performance testbed |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04311660A (en) * | 1991-04-09 | 1992-11-04 | Mitsubishi Motors Corp | Egr valve operation confirming method by infrared thermometer |
| KR100218165B1 (en) * | 1996-12-26 | 1999-09-01 | 정몽규 | Tester for egr valve |
-
2013
- 2013-06-27 CN CN201310262913.6A patent/CN103335859B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1068652A (en) * | 1991-06-10 | 1993-02-03 | 基斯通国际集团公司 | The method and apparatus of monitoring recirculation control system performance |
| CN201681129U (en) * | 2010-05-07 | 2010-12-22 | 无锡隆盛科技有限公司 | Electric EGR valve detection platform |
| CN202350987U (en) * | 2011-11-22 | 2012-07-25 | 宜宾天瑞达汽车零部件有限公司 | Negative-pressure exhaust gas recycle (EGR) valve leakage detection craft equipment |
| CN203337401U (en) * | 2013-06-27 | 2013-12-11 | 新昌县瑞宏自动化设备有限公司 | Electric control EGR (Exhaust Gas Recirculation) valve performance testbed |
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