CN205719810U - A kind of motor turning power flexible pipe high temperature pulse integrated test system - Google Patents
A kind of motor turning power flexible pipe high temperature pulse integrated test system Download PDFInfo
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- CN205719810U CN205719810U CN201620373852.XU CN201620373852U CN205719810U CN 205719810 U CN205719810 U CN 205719810U CN 201620373852 U CN201620373852 U CN 201620373852U CN 205719810 U CN205719810 U CN 205719810U
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Abstract
The utility model discloses the motor turning power flexible pipe high temperature pulse integrated test system that a kind of integrated level is high, pressure pulse curve is adjustable, energy consumption is extremely low, including fuel tank and the holder device being placed in fuel tank side, it is fixed with tested flexible pipe on described holder device, it is characterized in that, motor turning power flexible pipe high temperature pulse integrated test system includes hydraulic power circuits, control loop and high temperature pulse loop.Select in the principle of hydraulic control system, for the mode of the pressurising employing accumulator pressurizing to tested flexible pipe, compared to general electric-motor pump group directly to the principle of tested flexible pipe pressurising, the energy will be saved greatly, effectively reduce testing cost.
Description
Technical field
The utility model relates to Fluid Transmission and Control technical field, particularly relates to a kind of motor turning power flexible pipe high temperature pulse integrated test system.
Background technology
Motor turning power flexible pipe high temperature pulse integrated test system is the electromechanical integrated device of a set of detection high temperature resistant pulse feature of motor turning power flexible pipe.Steering power flexible pipe is as the important product of current state motor vehicle product, and it is high temperature resistant, and pulse feature test is important performance test link.
At present, existing power steering hose testing stand on market, has a following frame mode feature:
1st, radiating mode: hydraulic oil to be heated to 135 DEG C, then hydraulic oil dispels the heat back Hydraulic Station, needs a device dispelling the heat, and typically taking is the mode that air conditioner refrigerating, water-cooled and air cooler carry out dielectric fluid force feed heat radiation.
2nd, the working method of pressurization: use servoBcylinder, servo proportion and air driven pump etc. to carry out pressurized operation.
3rd, mode of heating: the mode that hydraulic oil is heated is electrical heating etc., it is desirable to hydraulic fluid temperature is high, will have resistant to elevated temperatures hydraulic component, requires high, cost height to hydraulic component.
From structure, experimental rig on the market is owing to having high-power servoBcylinder, electrical heating and operation of air conditioning systems etc. at present so that device overall power is high, power consumption is big, not energy-conservation.
Furthermore, owing to motor turning power flexible pipe test period is long especially, if using general being rotated directly to the hydraulic principle of tested flexible pipe pressurising by driven by motor pump, then commonly used two kinds of control modes: a kind of control mode is, within test period, electric-motor pump will under high pressure work always, so will consume the energy greatly, and wherein have quite a few to be idle work, translate into heat, test hydraulic system will be made greatly to generate heat；Another kind of control mode is, within test period, electric-motor pump work with pressure when needing to pressurize, it is not necessary to during pressurising, electric-motor pump unloads, due to ascending, descending pressure frequent in the power steering hose testing time, motor obviously can not meet the frequent start-stop in so short time, and, even if the time disclosure satisfy that, the carrying out that there is also electric-motor pump frequent start-stop boosts, unloads circulation work problem, will have a strong impact on the life-span of electric-motor pump.
In addition, the pressure oil step-down release to tested flexible pipe in test process of device on the market at present, flexible pipe inner fluid is discharged, and makes it flow back to the mode of fuel tank by general employing, is filled with the mode of new fluid boosting again in flexible pipe at subsequent cycle.So, owing to test condition requires that the temperature of tested fluid must be high-temperature oil liquid, it is necessary that the fluid being newly filled with is the high-temperature oil liquid meeting temperature requirement, this by cause hydraulic system pressure oil oil feed line in fluid must be through heating high-temperature oil liquid, namely in whole test process, forced feed fluid is heated by holding to be continued, and makes it keep meeting the temperature that test condition requires all the time.The harm so bringing is: first, consumes the energy, because to be always maintained at heating；Second, hydraulic system oil liquid constant temperature is made to raise, and the temperature of the components and parts of hydraulic system and sealing tolerance is far below the oil liquid temperature required by test, this is accomplished by cooling down to not needing high-temperature part fluid, so test system equipment will increase circulation cooling device, making test hydraulic system more complicated, whole test bed cost is significantly greatly increased.
Utility model content
In order to solve above-mentioned technical problem, the utility model provides the motor turning power flexible pipe high temperature pulse integrated test system that a kind of integrated level is high, pressure pulse curve is adjustable, energy consumption is extremely low.
Technical problem to be solved in the utility model is achieved through the following technical solutions:
A kind of motor turning power flexible pipe high temperature pulse integrated test system of the present utility model, including fuel tank and the holder device being placed in fuel tank side, being fixed with tested flexible pipe on described holder device, motor turning power flexible pipe high temperature pulse integrated test system includes hydraulic power circuits, control loop and high temperature pulse loop；
Described hydraulic power circuits includes oil pump and piston accumulator, and described oil pump is connected with piston accumulator and fuel tank respectively by oil circuit；
Described control loop includes pressure sensor and electromagnetic ball valve；
Described high temperature pulse loop includes solenoid directional control valve, pressurized cylinder and stop valve；
Described electromagnetic ball valve includes the first electromagnetic ball valve, the second electromagnetic ball valve, the 3rd electromagnetic ball valve, described piston accumulator, the 3rd electromagnetic ball valve and pressurized cylinder are sequentially connected with by oil circuit, described piston accumulator, the first electromagnetic ball valve or the second electromagnetic ball valve, solenoid directional control valve are sequentially connected with by oil circuit, described pressurized cylinder is connected with tested flexible pipe by oil circuit, described tested flexible pipe is connected with fuel tank, and described stop valve is placed between tested flexible pipe and fuel tank.
Further, described hydraulic power circuits also includes oil-suction oil filter, described oil-suction oil filter is connected between oil pump and fuel tank, it is connected with high-pressure plate type oil filter between described oil pump and piston accumulator, it is connected with check valve between described high-pressure plate type oil filter and piston accumulator, being connected with choke valve between described check valve and piston accumulator, described oil pump is connected with motor by shaft coupling, and described motor provides power for system.
Further, described piston accumulator includes first piston formula accumulator, the second piston accumulator and the 3rd piston accumulator, and described choke valve includes first throttle valve, second throttle and the 3rd choke valve.
Further, being provided with a branch road between described high-pressure plate type oil filter and check valve, described branch road being provided with overflow valve, described overflow valve is all connected by oil circuit with first throttle valve and fuel tank.
Further, described first piston formula accumulator, second throttle and oil pump are connected by oil circuit, and described second piston accumulator, the 3rd choke valve and oil pump are connected by oil circuit.
Further, described 3rd piston accumulator is placed between the 3rd electromagnetic ball valve and pressurized cylinder, is connected with the 4th electromagnetic ball valve between described 3rd piston accumulator and pressurized cylinder.
Further, described solenoid directional control valve includes the first solenoid directional control valve and the second solenoid directional control valve, and described first solenoid directional control valve and the second solenoid directional control valve are all connected by oil circuit with pressurized cylinder and fuel tank；
The energising end of described first electromagnetic ball valve is 3YA, and the energising end of described second electromagnetic ball valve is 4YA, and described first solenoid directional control valve has two energisings ends, respectively 5YA and 6YA, and described second solenoid directional control valve has two energisings ends, respectively 7YA and 8YA；
When described first piston formula accumulator and the second piston accumulator are suppressed to pressurized cylinder, described energising end 3YA, 5YA or 4YA, 7YA open simultaneously, and after reaching pressurized cylinder upper pressure limit, described energising end 3YA, 5YA or 4YA, 7YA simultaneously close off, pressurize 0.65s；
During the decompression of described pressurized cylinder, energising end 6YA or 8YA opens, and after reaching pressurized cylinder low pressure limit, energising end 6YA or 8YA closes, pressurize 0.65s.
Further, described first throttle valve one end is connected with the first pressure sensor, it is connected with the second pressure sensor between described 3rd electromagnetic ball valve and pressurized cylinder, it is connected with the first axial front Pressure gauge between described check valve and electromagnetic ball valve, described first electromagnetic ball valve and the second electromagnetic ball valve rear end are connected with pressure-reducing valve, described pressure-reducing valve rear end is connected with the 3rd axial front Pressure gauge, and the rear end of described 3rd electromagnetic ball valve is connected with the second axial front Pressure gauge.
Further, it is connected with temperature sensor between described pressurized cylinder and tested flexible pipe.
Further, described fuel tank is provided with liquid level gauge, air filter and magnet.
By such scheme, the utility model at least has the advantage that
The utility model selects in the principle of hydraulic control system, mode for the pressurising employing accumulator pressurizing to tested flexible pipe, rather than electric-motor pump group is directly carried out pressurising to tested flexible pipe, on hydraulic principle, electric-motor pump group is only responsible for accumulator pressurizing, certain high-pressure oil is accumulated in making accumulator, then high-pressure oil pressurising in tested flexible pipe that accumulator is accumulated is utilized, after the high-pressure oil of accumulation in accumulator is discharged into a certain degree, restart the pressurising in accumulator of electric-motor pump group, it is made to reach default accumulating high-pressure pressure oil mass again, continued to tested flexible pipe pressurising by accumulator.This process moves in circles, until test process terminates.This control principle completely avoid some row problems that the direct pressurising of aforementioned put forward electric-motor pump brings, and, compared to general electric-motor pump group directly to the principle of tested flexible pipe pressurising, the energy will be saved greatly, effectively reduce testing cost.
Described above is only the general introduction of technical solutions of the utility model, in order to better understand technological means of the present utility model, and can be practiced according to the content of specification, below with preferred embodiment of the present utility model and coordinate accompanying drawing describe in detail as after.
Brief description
Fig. 1 is the systematic schematic diagram of a kind of motor turning power flexible pipe high temperature pulse integrated test system of the present utility model.
1st, fuel tank；2nd, liquid level gauge；3rd, oil-suction oil filter；4th, air filter；5th, oil pump；6th, motor；7th, shaft coupling；8th, overflow valve；9th, check valve；10th, high-pressure plate type oil filter；111st, the first solenoid directional control valve；112nd, the second solenoid directional control valve；121st, the first electromagnetic ball valve；122nd, the second electromagnetic ball valve；123rd, the 3rd electromagnetic ball valve；124th, the 4th electromagnetic ball valve；13rd, pressure-reducing valve；141st, first throttle valve；142nd, second throttle；143rd, the 3rd choke valve；15th, the first axial front Pressure gauge；161st, the second axial front Pressure gauge；162nd, the 3rd axial front Pressure gauge；17th, the first pressure sensor；18th, the second pressure sensor；19th, holder device；201st, first piston formula accumulator；202nd, the second piston accumulator；21st, the 3rd piston accumulator；22nd, magnet；23rd, pressurized cylinder；24th, stop valve；25th, temperature sensor；26th, tested flexible pipe.
Detailed description of the invention
Below in conjunction with the accompanying drawings and embodiment, detailed description of the invention of the present utility model is described in further detail.Following example are used for illustrating the utility model, but are not limited to scope of the present utility model.
Shown in Figure 1, a kind of motor turning power flexible pipe high temperature pulse integrated test system, including fuel tank 1 and the holder device 19 being placed in fuel tank 1 side, being fixed with tested flexible pipe 26 on holder device 19, motor turning power flexible pipe high temperature pulse integrated test system includes hydraulic power circuits, control loop and high temperature pulse loop；
Hydraulic power circuits includes oil pump 5 and piston accumulator, and oil pump 5 is connected with piston accumulator and fuel tank 1 respectively by oil circuit；
Control loop includes pressure sensor and electromagnetic ball valve；
High temperature pulse loop includes solenoid directional control valve, pressurized cylinder 23 and stop valve 24；
Electromagnetic ball valve includes the first electromagnetic ball valve the 121st, the second electromagnetic ball valve the 122nd, the 3rd electromagnetic ball valve 123, piston accumulator, the 3rd electromagnetic ball valve 123 and pressurized cylinder 23 are sequentially connected with by oil circuit, piston accumulator, the first electromagnetic ball valve 121 or the second electromagnetic ball valve the 122nd, solenoid directional control valve are sequentially connected with by oil circuit, pressurized cylinder 23 is connected with tested flexible pipe 26 by oil circuit, tested flexible pipe 26 is connected with fuel tank 1, and stop valve 24 is placed between tested flexible pipe 26 and fuel tank 1.
Hydraulic power circuits also includes oil-suction oil filter 3, oil-suction oil filter 3 is connected between oil pump 5 and fuel tank 1, it is connected with high-pressure plate type oil filter 10 between oil pump 5 and piston accumulator, it is connected with check valve 9 between high-pressure plate type oil filter 10 and piston accumulator, it is connected with choke valve between check valve 9 and piston accumulator, oil pump 5 is connected with motor 6 by shaft coupling 7, and motor 6 provides power for system.
Piston accumulator includes first piston formula accumulator the 201st, the second piston accumulator 202 and the 3rd piston accumulator 21, and choke valve includes first throttle valve the 141st, second throttle 142 and the 3rd choke valve 143.
Being provided with a branch road between high-pressure plate type oil filter 10 and check valve 9, branch road being provided with overflow valve 8, overflow valve 8 is all connected by oil circuit with first throttle valve 141 and fuel tank 1.
First piston formula accumulator the 201st, second throttle 142 and oil pump 5 are connected by oil circuit, and the second piston accumulator the 202nd, the 3rd choke valve 143 and oil pump 5 are connected by oil circuit.
3rd piston accumulator 21 is placed between the 3rd electromagnetic ball valve 123 and pressurized cylinder 23, is connected with the 4th electromagnetic ball valve 124 between the 3rd piston accumulator 21 and pressurized cylinder 23.
Solenoid directional control valve includes the first solenoid directional control valve 111 and the second solenoid directional control valve 112, and the first solenoid directional control valve 111 and the second solenoid directional control valve 112 are all connected by oil circuit with pressurized cylinder 23 and fuel tank 1；
The energising end of the first electromagnetic ball valve 121 is 3YA, and the energising end of the second electromagnetic ball valve 122 is 4YA, and the first solenoid directional control valve 111 has two energisings ends, respectively 5YA and 6YA, and the second solenoid directional control valve 112 has two energisings ends, respectively 7YA and 8YA；
When first piston formula accumulator 201 and the second piston accumulator 202 suppress to pressurized cylinder 23, energising end 3YA, 5YA or 4YA, 7YA open simultaneously, and after reaching pressurized cylinder 23 upper pressure limit, energising end 3YA, 5YA or 4YA, 7YA simultaneously close off, pressurize 0.65s；
When pressurized cylinder 23 reduces pressure, energising end 6YA or 8YA opens, and after reaching pressurized cylinder 23 low pressure limit, energising end 6YA or 8YA closes, pressurize 0.65s.
First throttle valve 141 one end is connected with the first pressure sensor 17, it is connected with the second pressure sensor 18 between 3rd electromagnetic ball valve 123 and pressurized cylinder 23, it is connected with the first axial front Pressure gauge 15 between check valve 9 and electromagnetic ball valve, first electromagnetic ball valve 121 and the second electromagnetic ball valve 122 rear end are connected with pressure-reducing valve 13, pressure-reducing valve 13 rear end is connected with the 3rd axial front Pressure gauge 162, and the rear end of the 3rd electromagnetic ball valve 123 is connected with the second axial front Pressure gauge 161.
It is connected with temperature sensor 25 between pressurized cylinder 23 and tested flexible pipe 26.Liquid level gauge the 2nd, air filter 4 and magnet 22 are installed on fuel tank 1.
Concrete operations are as follows:
After laboratory technician presets test parameters on computer software, function knob switch being allocated to power steering position, clicking on oil pump 5 start button, oil pump 5 starts, and quits work to first piston formula accumulator 201 and the second piston accumulator 202 after suppressing 22.5MPa.Etc. ready light to be tested turn green after, press automatically operation, equipment is started working.First piston formula accumulator 201 and the second piston accumulator 202 suppress to pressurized cylinder 23, and energising end 3YA and 5YA or 4YA and 7YA of magnetic valve performs fighting simultaneously, and after reaching the preset pressure upper limit, 3YA and 5YA or 4YA and 7YA simultaneously closes off, pressurize 0.65s.6YA or 8YA works, and pressurized cylinder 23 reduces pressure, and after reaching preset pressure lower limit, magnetic valve 6YA or 8YA closes, pressurize 0.65s.Then 3YA and 5YA or 4YA and 7YA opens simultaneously again, and pressurized cylinder 23 pressurizes, and changes magnetic valve group according to circulation set point number.Wherein 3YA and 5YA and 6YA is one group, 4YA and 7YA and 8YA is one group, and now 3YA and 5YA changes 4YA and 7YA 6YA simultaneously and change 8YA, realizes alternation according to set point number, until off-test.After off-test, press and be automatically stopped button, first open manual ball valve and then open relief cock again, 2YA opens, after making the pressure of first piston formula accumulator the 201st, the second piston accumulator 202 and pressurized cylinder 23 be down to zero, rotary switch is allocated to close, off-test.
Hydraulic power circuits of the present utility model includes oil pump 5 and piston accumulator, and oil pump 5 is connected with piston accumulator and fuel tank 1 respectively by oil circuit；Control loop includes pressure sensor and electromagnetic ball valve；High temperature pulse loop includes solenoid directional control valve, pressurized cylinder 23 and stop valve 24.Use electrohydraulic control technology, control, by industrial computer and PLC, pulse output and other various different wave that Hydraulic Station realizes pressure.Pulse, pulse frequency, liter decompression rate and time parameter are all adjustable, and can be adjusted according to the temperature to test(ing) medium and test specimen environment for the difference of test requirements document, automated system operation during pulse testing, and motor automatic stop operates, energy-saving and noise-reducing.Meanwhile, the utility model is not required to configure outside fluid heater and refrigerating plant, but uses accumulator, it is achieved save energy consumption and space.In using safe and reliable, easy to operate.Carrying out 35 times/min high temperature pulse test specified in SAE J188, completing test needs 107.14 hours, but motor only needs to operate 17.85 hours altogether, and system liquid laminate section power consumption only has 53.57 degree, it is achieved that energy-efficient.
The utility model, select in the principle of hydraulic control system, for the pressurising to tested flexible pipe 26, we select to use the mode of accumulator pressurizing, rather than electric-motor pump group is directly carried out pressurising to tested flexible pipe 26, on hydraulic principle, electric-motor pump group is only responsible for accumulator pressurizing, certain high-pressure oil is accumulated in making accumulator, then high-pressure oil pressurising in tested flexible pipe 26 that accumulator is accumulated is utilized, after the high-pressure oil of accumulation in accumulator is discharged into a certain degree, restart the pressurising in accumulator of electric-motor pump group, it is made to reach default accumulating high-pressure pressure oil mass again, continued to the pressurising of tested flexible pipe 26 by accumulator.This process moves in circles, until test process terminates.This control principle completely avoid some row problems that the direct pressurising of aforementioned put forward electric-motor pump brings, and, compared to general electric-motor pump group directly to the principle of tested flexible pipe 26 pressurising, the energy will be saved greatly, effectively reduce testing cost.
Additionally, the utility model have employed control thinking and the control principle of a kind of more environmental protection, it is full of test fluid in making for the first time tested flexible pipe 26, and after the test temperature that specifies of the standard that is heated to, just make it not discharge in being always held at tested flexible pipe 26.Boosting, step-down to tested flexible pipe 26 do not use traditional hydraulic valve commutation that utilizes to be filled with high-voltage oil liquid, discharge fluid, circulation carries out the mode being filled with, discharging, but use utilize pressurized cylinder 23 to commutate to tested flexible pipe 26 inner fluid to carry out pressurize, release of pressure, and tested flexible pipe 26 inner fluid is no longer discharged back into the control mode of fuel tank 1.So ensure that tested flexible pipe 26 inner fluid remains, owing to tested flexible pipe 26 is constantly in high-temperature cabinet, its environment temperature is always maintained at, and tested flexible pipe 26 inner fluid does not externally exchange, therefore tested flexible pipe 26 inner fluid temperature can well be kept, and, owing to its fluid is no longer released back into fuel tank 1, also a large amount of high deep fat liquid will not be discharged to test system, system thus can be made both need not to have considered to carry out continuous heating to fluid, also need not persistently cool down, thus save mass energy, and test equipment cost is greatly reduced.
Owing to this equipment is test equipment, need uninterruptedly to carry out test verification for a long time continuously according to standard, therefore, in order to ensure equipment functional reliability and equipment normal service life, voltage raising and reducing control loop devises dual redundant hydraulic circuit, i.e. each parts all use 2 or multiple stage, it is ensured that device is longer for overall service life.
Described above is only the general introduction of technical solutions of the utility model, in order to better understand technological means of the present utility model, and can be practiced according to the content of specification, below with preferred embodiment of the present utility model and coordinate accompanying drawing describe in detail as after.
The above is only preferred embodiment of the present utility model; it is not limited to the utility model; should be understood that; for those skilled in the art; on the premise of without departing from the utility model know-why; can also make some improvement and modification, these improve and modification also should be regarded as protection domain of the present utility model.
Claims (10)
1. a motor turning power flexible pipe high temperature pulse integrated test system, including fuel tank (1) and the holder device (19) being placed in fuel tank (1) side, it is fixed with tested flexible pipe (26) on described holder device (19), it is characterized in that, motor turning power flexible pipe high temperature pulse integrated test system includes hydraulic power circuits, control loop and high temperature pulse loop；
Described hydraulic power circuits includes oil pump (5) and piston accumulator, and described oil pump (5) is connected with piston accumulator and fuel tank (1) respectively by oil circuit；
Described control loop includes pressure sensor and electromagnetic ball valve；
Described high temperature pulse loop includes solenoid directional control valve, pressurized cylinder (23) and stop valve (24)；
Described electromagnetic ball valve includes the first electromagnetic ball valve (121), second electromagnetic ball valve (122), 3rd electromagnetic ball valve (123), described piston accumulator, 3rd electromagnetic ball valve (123) and pressurized cylinder (23) are sequentially connected with by oil circuit, described piston accumulator, first electromagnetic ball valve (121) or the second electromagnetic ball valve (122), solenoid directional control valve is sequentially connected with by oil circuit, described pressurized cylinder (23) is connected with tested flexible pipe (26) by oil circuit, described tested flexible pipe (26) is connected with fuel tank (1), described stop valve (24) is placed between tested flexible pipe (26) and fuel tank (1).
2. a kind of motor turning power flexible pipe high temperature pulse integrated test system according to claim 1, it is characterized in that, described hydraulic power circuits also includes oil-suction oil filter (3), described oil-suction oil filter (3) is connected between oil pump (5) and fuel tank (1), it is connected with high-pressure plate type oil filter (10) between described oil pump (5) and piston accumulator, it is connected with check valve (9) between described high-pressure plate type oil filter (10) and piston accumulator, it is connected with choke valve between described check valve (9) and piston accumulator, described oil pump (5) is connected with motor (6) by shaft coupling (7), described motor (6) provides power for system.
3. a kind of motor turning power flexible pipe high temperature pulse integrated test system according to claim 2, it is characterized in that, described piston accumulator includes first piston formula accumulator (201), the second piston accumulator (202) and the 3rd piston accumulator (21), and described choke valve includes first throttle valve (141), second throttle (142) and the 3rd choke valve (143).
4. a kind of motor turning power flexible pipe high temperature pulse integrated test system according to claim 3, it is characterized in that, it is provided with a branch road between described high-pressure plate type oil filter (10) and check valve (9), being provided with overflow valve (8) on described branch road, described overflow valve (8) is all connected by oil circuit with first throttle valve (141) and fuel tank (1).
5. a kind of motor turning power flexible pipe high temperature pulse integrated test system according to claim 3, it is characterized in that, described first piston formula accumulator (201), second throttle (142) and oil pump (5) are connected by oil circuit, and described second piston accumulator (202), the 3rd choke valve (143) and oil pump (5) are connected by oil circuit.
6. a kind of motor turning power flexible pipe high temperature pulse integrated test system according to claim 3, it is characterized in that, described 3rd piston accumulator (21) is placed between the 3rd electromagnetic ball valve (123) and pressurized cylinder (23), is connected with the 4th electromagnetic ball valve (124) between described 3rd piston accumulator (21) and pressurized cylinder (23).
7. a kind of motor turning power flexible pipe high temperature pulse integrated test system according to claim 5, it is characterized in that, described solenoid directional control valve includes the first solenoid directional control valve (111) and the second solenoid directional control valve (112), and described first solenoid directional control valve (111) and the second solenoid directional control valve (112) are all connected by oil circuit with pressurized cylinder (23) and fuel tank (1)；
The energising end of described first electromagnetic ball valve (121) is 3YA, the energising end of described second electromagnetic ball valve (122) is 4YA, described first solenoid directional control valve (111) has two energising ends, it is respectively 5YA and 6YA, described second solenoid directional control valve (112) has two energisings ends, respectively 7YA and 8YA；
When described first piston formula accumulator (201) and the second piston accumulator (202) suppress to pressurized cylinder (23), described energising end 3YA, 5YA or 4YA, 7YA open simultaneously, after reaching pressurized cylinder (23) upper pressure limit, described energising end 3YA, 5YA or 4YA, 7YA simultaneously close off, pressurize 0.65s；
During described pressurized cylinder (23) decompression, energising end 6YA or 8YA opens, and after reaching pressurized cylinder (23) low pressure limit, energising end 6YA or 8YA closes, pressurize 0.65s.
8. a kind of motor turning power flexible pipe high temperature pulse integrated test system according to claim 3, it is characterized in that, described first throttle valve (141) one end is connected with the first pressure sensor (17), it is connected with the second pressure sensor (18) between described 3rd electromagnetic ball valve (123) and pressurized cylinder (23), it is connected with the first axial front Pressure gauge (15) between described check valve (9) and electromagnetic ball valve, described first electromagnetic ball valve (121) and the second electromagnetic ball valve (122) rear end are connected with pressure-reducing valve (13), described pressure-reducing valve (13) rear end is connected with the 3rd axial front Pressure gauge (162), the rear end of described 3rd electromagnetic ball valve (123) is connected with the second axial front Pressure gauge (161).
9. a kind of motor turning power flexible pipe high temperature pulse integrated test system according to claim 1, it is characterised in that be connected with temperature sensor (25) between described pressurized cylinder (23) and tested flexible pipe (26).
10. a kind of motor turning power flexible pipe high temperature pulse integrated test system according to claim 1, it is characterized in that, described fuel tank (1) is provided with liquid level gauge (2), air filter (4) and magnet (22).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620373852.XU CN205719810U (en) | 2016-04-28 | 2016-04-28 | A kind of motor turning power flexible pipe high temperature pulse integrated test system |
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| CN201620373852.XU CN205719810U (en) | 2016-04-28 | 2016-04-28 | A kind of motor turning power flexible pipe high temperature pulse integrated test system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105716963A (en) * | 2016-04-28 | 2016-06-29 | 北京中汽寰宇机动车检验中心有限公司 | Comprehensive testing system for high-temperature pulse of steering power hose of motor vehicle |
| CN112727851A (en) * | 2020-11-25 | 2021-04-30 | 河南航天液压气动技术有限公司 | Three-comprehensive test platform based on pulse test and working method thereof |
-
2016
- 2016-04-28 CN CN201620373852.XU patent/CN205719810U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105716963A (en) * | 2016-04-28 | 2016-06-29 | 北京中汽寰宇机动车检验中心有限公司 | Comprehensive testing system for high-temperature pulse of steering power hose of motor vehicle |
| CN105716963B (en) * | 2016-04-28 | 2019-04-12 | 中机寰宇认证检验有限公司 | A kind of motor turning power hose high temperature pulse integrated test system |
| CN112727851A (en) * | 2020-11-25 | 2021-04-30 | 河南航天液压气动技术有限公司 | Three-comprehensive test platform based on pulse test and working method thereof |
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