CN101957258A - Testing device for CVT (Constant-Voltage Transformer) valve body performance testing - Google Patents
Testing device for CVT (Constant-Voltage Transformer) valve body performance testing Download PDFInfo
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- CN101957258A CN101957258A CN 201010242744 CN201010242744A CN101957258A CN 101957258 A CN101957258 A CN 101957258A CN 201010242744 CN201010242744 CN 201010242744 CN 201010242744 A CN201010242744 A CN 201010242744A CN 101957258 A CN101957258 A CN 101957258A
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- 238000012360 testing method Methods 0.000 title claims abstract description 69
- 239000003595 mist Substances 0.000 claims abstract description 5
- 239000002828 fuel tank Substances 0.000 claims description 19
- 238000009413 insulation Methods 0.000 claims description 16
- 239000007788 liquid Substances 0.000 claims description 12
- 238000004891 communication Methods 0.000 claims description 9
- 239000000446 fuel Substances 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 238000003756 stirring Methods 0.000 claims description 6
- 239000000498 cooling water Substances 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 4
- 239000003921 oil Substances 0.000 abstract description 31
- 239000010720 hydraulic oil Substances 0.000 abstract description 18
- 230000005540 biological transmission Effects 0.000 description 6
- 238000012423 maintenance Methods 0.000 description 5
- 238000011056 performance test Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 239000000945 filler Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009429 electrical wiring Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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Abstract
The invention relates to a testing device for CVT valve body performance testing, which is formed by connecting a controlling machine and a testing machine; the controlling machine comprises an operation table and a control circuit inside the operation table; and the testing machine comprises a framework assembly, a hydraulic system, a hydraulic oil box and a testing cabin, wherein the hydraulic system is connected with the hydraulic oil box and positioned at the bottom of the framework assembly, the testing cabin is positioned at the upper part of the framework assembly, and an oil mist collector is installed at the top of the framework assembly. The invention realizes the performance testing for the pressure, the temperature and the like of an automobile stepless speed-changer valve body by adopting a mechanical-electrical-hydraulic combined mode, has the advantages of simple structure, convenient use and high testing precision, can be used for carrying out automated performance testing on the automobile stepless speed-changer valve body according to testing requirements, reduces the testing expenses and shortens the testing period.
Description
Technical field
The present invention relates to the test unit of a kind of automotive transmission (CVT), especially relate to a kind of test unit that is used to test CVT valve body performance.
Background technology
Along with Chinese Automobile Industry ' fast development and automobile enter Chinese family fast, in a large number, the automobile product that domestic automobile manufacturing enterprise is all being developed one's own intellectual property energetically, buncher is the critical component in the automobile product, and valve body is again the auto continuously variable transmission critical component.At present, domestic do not have special-purpose test unit for auto continuously variable transmission valve body performance test, need such test unit of import or valve body delivered to carry out performance test abroad, and the testing expenses height, the test period is long, is unfavorable for Products Development.
Summary of the invention
The applicant is at above-mentioned problem, carried out research and improved, a kind of CVT valve body performance testing device is provided, simple in structure, easy to use, can carry out automated performance testing to the auto continuously variable transmission valve body according to testing requirements, reduce testing expenses and shorten the test period.
In order to solve the problems of the technologies described above, the present invention adopts following technical scheme:
A kind of CVT valve body performance testing device is connected and composed by controller and testing machine; Described controller comprises operator's console and inner control circuit thereof; Described testing machine comprises frame assembly, hydraulic system, hydraulic reservoir and test cabin, and hydraulic system is connected and is positioned at the bottom of frame assembly with hydraulic reservoir, and test cabin is positioned at the top of frame assembly, and the mist of oil gatherer is installed at the frame assembly top.
Its further technical scheme is:
Be used on the described frame assembly installation test storehouse the position folding door is installed.
The top of described frame assembly is equipped with ear stud.
The bottom of described frame assembly is equipped with the lower margin regulator.
The control circuit of described controller inside comprises CAN communication controller, 32 passage PXI data collecting cards, 16 passage PXI data collecting cards, internal memory and the embedded controller that is installed in the PXI cabinet, wherein 32 passage PXI data collecting cards are connected with strain amplifier by connection terminal shielding wire casing, and the other end of described strain amplifier is used to connect sensor external; Described emergency operation switch is connected with connection terminal shielding wire casing; Described PXI cabinet be linked in sequence voltage regulator, uninterrupted power source and main control computer, main control computer connects TCP/IP communication interface, display, mouse and keyboard respectively; Described TCP/IP communication interface is connected with the PXI cabinet.
Described hydraulic system comprises the double-layer heat insulation fuel tank, be provided with electromagnet, well heater, oil return filter screen, liquid level in the double-layer heat insulation fuel tank and take into account refrigeratory, be connected with air strainer, thermometer, coarse filter, two position alarm switch, stirrer and ball valve on the double-layer heat insulation fuel tank, the oil return filter screen connects measured piece by the oil return flowmeter, refrigeratory be linked in sequence electromagnetism water valve and water filter; Coarse filter be linked in sequence gear-type pump, fine filter, throttling valve and accumulator, gear-type pump connects motor by shaft coupling, proportional pressure control valve inserts between fine filter and the throttling valve, pressure measuring tie-in, solenoid directional control valve and manual ball valve are linked in sequence and insert between fine filter and the throttling valve, and measured piece is linked in sequence and inserts between fine filter and the throttling valve behind hydraulic quick coupler, flow sensor, manual governing valve in parallel and proportional reversing valve, the hand-operated direction valve; Be connected with the temperature sensor and first pressure transducer between hydraulic quick coupler and the measured piece; One end of flow speed control valve connects the oil return filter screen by measured piece, and the other end inserts between gear-type pump and the fine filter, and throttling valve one termination is gone into the double-layer heat insulation fuel tank, and the other end inserts between manual governing valve and the flow sensor; Tensimeter and manually surplus valve series connection back is in parallel with safety valve is attempted by between gear-type pump and the fine filter and between double-layer heat insulation fuel tank and the throttling valve; Solenoid directional control valve is pressed with second pressure transducer, the 3rd pressure transducer, the 4th pressure transducer respectively and the 5th pressure transducer is connected the back by pressure measuring tie-in access measured piece.
Described hydraulic reservoir comprises casing, and the bottom of the right side wall of described casing is provided with well heater and cooling water pond; The left side wall of described casing is provided with thermometer, high-temperature filter and liquid level gauge; The bottom of the antetheca of described casing is provided with fuel outlet, and fuel outlet is provided with ball valve; The top of the antetheca of described casing is provided with oil return opening, and oil return opening is provided with flange; The end face of described casing is provided with oil filler; The end face of described casing is provided with stirring motor, and the stirrer that is arranged in the described casing connects described motor.
Technique effect of the present invention is:
The mode that the present invention adopts mechanical electronic hydraulic to combine, realize the performance test of automobile with buncher valve body pressure, flow etc., simple in structure, easy to use, the measuring accuracy height, can carry out automated performance testing to the auto continuously variable transmission valve body according to testing requirements, reduce testing expenses and shorten the test period.
Description of drawings
In order to be illustrated more clearly in the embodiment of the present application or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, the accompanying drawing that describes below only is some embodiment that put down in writing among the application, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is an one-piece construction synoptic diagram of the present invention.
Fig. 2 is a controller internal control circuit synoptic diagram of the present invention.
Fig. 3 is the structural representation of hydraulic system of the present invention.
Fig. 4 is the three-dimensional structure synoptic diagram of hydraulic reservoir.
Fig. 5 is the front view of hydraulic reservoir.Fig. 5 A is the enlarged drawing at A place among Fig. 5.
Fig. 6 is the right view of Fig. 5.
Fig. 7 is the left view of Fig. 5.
Fig. 8 is the vertical view of Fig. 5.
Embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described in further detail.
As shown in Figure 1, the present invention is connected and composed by controller 1 and testing machine 2.Controller 1 comprises operator's console and inner control circuit thereof.Testing machine 2 comprises frame assembly 3, hydraulic system 4, hydraulic reservoir 5 and test cabin 6, and hydraulic system 4 and hydraulic reservoir 5 are connected and are positioned at the bottom of frame assembly 3, and test cabin 6 is positioned at the top of frame assembly 3, and mist of oil gatherer 7 is installed at frame assembly 1 top.This is because during hot test, can produce the high temperature greasy dirt in Laboratory Module, and it is unfavorable that the Test condition of Laboratory Module is observed, and this greasy dirt can meet the condensation knot, and the inwall of Laboratory Module is assembled the oil-collecting dirt; Mist of oil gatherer 7 is used for it is removed.Be used on the frame assembly 3 installation test storehouse 6 the position folding door 8 is installed.During test, folding door is a closed condition, shut down to change tested valve body pass through open folding door and operate, the frock and the measured piece of test usefulness carry out in this space.The top of frame assembly 3 is equipped with ear stud 9.The bottom of frame assembly 3 is equipped with lower margin regulator 10.
As shown in Figure 2, the control circuit of controller 1 inside comprises: be installed on CAN communication controller 204,32 passage PXI data collecting cards 205,16 passage PXI data collecting cards 206, internal memory 207 and embedded controller 208 in the PXI cabinet 209, wherein 32 passage PXI data collecting cards 205 are connected with strain amplifier 201 by connection terminal shielding wire casing 203, and the other end of strain amplifier 201 is used to connect sensor external; Emergency operation switch 202 is connected with connection terminal shielding wire casing 3; PXI cabinet 209 be linked in sequence voltage regulator 210, uninterrupted power source 211 and main control computer 212, main control computer 212 connects TCP/IP communication interface 213, display 214, mouse 215 and keyboard 216 respectively; TCP/IP communication interface 213 is connected with PXI cabinet 209.
As shown in Figure 3, hydraulic system 4 comprises double-layer heat insulation fuel tank 301, be provided with electromagnet 302, well heater 303, oil return filter screen 308, liquid level gauge 309 and refrigeratory 210 in the double-layer heat insulation fuel tank 301, be connected with air strainer 304, thermometer 305, coarse filter 306, two position alarm switch 307, stirrer 340 and ball valve 342 on the double-layer heat insulation fuel tank 301, oil return filter screen 308 connects measured pieces 344 by oil return flowmeter 330, refrigeratory 310 be linked in sequence electromagnetism water valve 323 and water filter 311; Coarse filter 336 gear-type pump 314 that is linked in sequence, fine filter 318, throttling valve 328 and accumulator 329, gear-type pump 314 connects motor 312 by shaft coupling 313, proportional pressure control valve 315 inserts between fine filter 318 and the throttling valve 328, pressure measuring tie-in 335, solenoid directional control valve 319 and manual ball valve 320 are linked in sequence and insert between fine filter 318 and the throttling valve 328, measured piece 344 hydraulic quick coupler 326 that is linked in sequence, flow sensor 325, manual governing valve 322 and proportional reversing valve 338 in parallel, hand-operated direction valve 343 backs are inserted between fine filter 318 and the throttling valve 328; Be connected with the temperature sensor 324 and first pressure transducer 331 between hydraulic quick coupler 326 and the measured piece 344; One end of flow speed control valve 339 connects oil return filter screen 308 by measured piece 344, and the other end inserts between gear-type pump 314 and the fine filter 318, and throttling valve 321 1 terminations are gone into double-layer heat insulation fuel tank 301, and the other end inserts between manual governing valve 322 and the flow sensor 325; Tensimeter 316 and manually surplus valve 317 series connection backs are in parallel with safety valve 337 is attempted by between gear-type pump 314 and the fine filter 318 and between double-layer heat insulation fuel tank 301 and the throttling valve 321; Solenoid directional control valve 327 is pressed the 334 and the 5th pressure transducer 336 to be connected the back with second pressure transducer 332, the 3rd pressure transducer 333, the 4th pressure transducer respectively and is inserted measured piece 344 by pressure measuring tie-in 341.
In the above-mentioned accompanying drawing, except that measured piece 344 was buncher (CVT) valve body, other each parts all adopted the commercial goods, see Table 1.
Table 1 parts detail list of the present invention
| Sequence | Title | Quantity | |
| 1? | The double-layer heat |
1? | |
| 2? | |
1? | |
| 3? | Well heater | 3? | |
| 4? | |
1? | |
| 5? | |
1? | |
| 6? | Coarse |
1? | |
| 7? | The two |
1? | |
| 8? | The oil |
1? | |
| 9? | |
1? |
| 10? | |
1? |
| 11? | |
1? |
| 12? | |
1? |
| 13? | Shaft coupling | ? |
| 14? | Gear- |
1? |
| 15? | Proportional |
1? |
| 16? | Tensimeter | 3? |
| 17? | |
2? |
| 18? | |
1? |
| 19? | Solenoid |
1? |
| 20? | |
1? |
| 21? | Throttling |
1? |
| 22? | The |
1? |
| 23? | The |
1? |
| 24? | |
1? |
| 25? | |
1? |
| 26? | Hydraulic |
1? |
| 27? | Solenoid |
10? |
| 28? | Throttling |
1? |
| 29? | |
1? |
| 30? | The oil return flowmeter | ? |
| 31? | |
2? |
| 32? | |
1? |
| 33? | Pressure transducer | 3? |
| 34? | Pressure transducer | 3? |
| 35? | Pressure measuring tie-in | 13? |
| 36? | |
1? |
| 37? | |
1? |
| 38? | Proportional reversing |
1? |
| 39? | Flow |
1? |
| 40? | |
1? |
| 41? | Pressure measuring tie-in | 12? |
| 42? | |
1? |
| 43? | Hand-operated |
1? |
Shown in Fig. 4～8, the present invention includes casing 401, the bottom of the right side wall of casing 401 is provided with well heater 402 and cooling water pond 403, well heater 402 can be heated to the hydraulic oil in the casing 401 the required temperature of test, and cooling water pond 403 can be cooled to test required temperature with the hydraulic oil in the casing 401.The left side wall of casing 401 is provided with thermometer 404, high-temperature filter 405 and liquid level gauge 406, and thermometer 404 is used to measure the temperature of hydraulic oil in the casing 401, and the temperature that can read hydraulic oil intuitively; Hydraulic oil is after filtering through high-temperature filter 405, to the hydraulic system fuel feeding; Liquid level gauge 406 can be observed the liquid level of hydraulic oil in the casing 401 intuitively.The bottom of the antetheca of casing 401 is provided with fuel outlet, and fuel outlet is provided with ball valve 407, when needs are changed hydraulic oil, opens ball valve 7 and can discharge hydraulic oil in the casing 401.The top of the antetheca of casing 401 is provided with oil return opening, and oil return opening is provided with flange 408, and flange 408 connects the return line of hydraulic system, and the oil return of hydraulic system is returned casing 401 through oil return opening.The end face of casing 401 is provided with oil filler 409, adds hydraulic oil by oil filler 409 in casing 401.The end face of casing 401 is provided with stirring motor 410, stirring motor 410 leads to into, and electric machine support 411 is installed on the end face of casing 401, the stirrer (not drawing in the drawings) that is arranged in the casing 401 connects stirring motor 410, stirrer stirs the hydraulic oil in the casing 401, the uniformity coefficient of the maintenance hydraulic oil oil temperature when heating or cooling is to provide the hydraulic oil that satisfies the testing requirements temperature.The end face of casing 401 is provided with two position controller 412, and when the liquid level of hydraulic oil in the casing 401 was too high or too low, two position controller 412 can be reported to the police, and avoids auto continuously variable transmission valve body performance test hydraulic system is caused damage.In the present embodiment, casing 401 is double-decker (as Fig. 5, Fig. 5 A), fill insulant material 503 between interior case 502 and the outer container 501, and this double-deck casing can keep the temperature of hydraulic oil, saves the energy; The top of casing 401 right side walls is provided with emptying oil return opening 414, the exhaust-valve return line that emptying oil return opening 414 connects in the hydraulic system; High-temperature filter 405 is the self-locking filtrator, when filter element cleans, does not need the hydraulic oil emptying in the fuel tank can be made things convenient for the cleaning of filter core; The bottom of the left side wall of casing 401 is provided with 402 well heaters 402 in addition, can accelerate the programming rate of hydraulic oil, improves test efficiency; The end face of casing 401 is provided with 404 hangers 413, can make things convenient for the mounting or dismounting of fuel tank.
Performance test of the present invention is to set by the initial conditions of operator's console, for example: temperature: 60 degree, flow 15L/MIN, pressure are not higher than 6.0mpa; Test duration is carried out the time of a DUTY scanning for the operator's console solenoid valve.Measure pressure and the valve body fuel supply flow rate and the oil return flow of each delivery outlet in the valve body assembly under this operating mode; The requirement of temperature adopts the different temperature points of test to test: integer temperature spots such as 60 degrees centigrade, 80 degrees centigrade, 100 degrees centigrade, 120 degrees centigrade are tested.
The main specifications of apparatus of the present invention is as follows:
1) subjects: CVT valve body
2) installation form: the frock plate is fixed tested valve body, and measured hole pressure is drawn measurement by flexible pipe
3) motor-driven power: 15kW
4) gear-type pump nominal discharge capacity: 32ml/r
5) test oil pressure scope: 0～10MPa
6) test flow scope: 0～45L/min
7) test oil temperature scope: room temperature～120 ℃
Operation debugging of the present invention:
1) before the start
Each hydraulic valve pipe arrangement in the inspection hydraulic control system should be installed correct, intact; Electrical wiring is normal; In fuel tank, add clean oil by air cleaner, mustn't be lower than the minimum liquid level place of liquid level gauge.
2) start and debugging
1, start: open main pump motor, check its whether in the direction of the clock rotation; Start main pump motor, no-load running ten minutes should no abnormal noise and vibration.
2, the debugging: before dispatching from the factory, manufacturing firm has finished every function test of hydraulic system, and by principle with configure the relevant parameters value, undertaken by the professional at the scene with electric-linked debugging.
Maintenance of the present invention:
The maintenance of equipment be maintenance equipment in shape, increase the service life, enhance productivity the routine work that must carry out.Behind the equipment operation 500 hours, must carry out routine examination and maintain.Generally operating personnel should be arranged, the maintainer cooperates together and carries out.Before inspection, must cut off the electricity supply earlier, carry out related work again.The maintainer of equipment should regularly detect the cleanliness of fluid, makes it keeping higher quality, and every three months detects an oil quality and whether changes the appearance cleaning of maintenance equipment with decision generally speaking.Change before the components and parts, be replaced the appearance of element and must effectively clean on every side after could dismantle.
Above-described only is preferred implementation of the present invention, the invention is not restricted to above embodiment.Be appreciated that other improvement and variation that those skilled in the art directly derive or associate under the prerequisite that does not break away from spirit of the present invention and design, all should think to be included within protection scope of the present invention.
Claims (7)
1. a CVT valve body performance testing device is characterized in that: connected and composed by controller (1) and testing machine (2); Described controller (1) comprises operator's console and inner control circuit thereof; Described testing machine (2) comprises frame assembly (3), hydraulic system (4), hydraulic reservoir (5) and test cabin (6), hydraulic system (4) and hydraulic reservoir (5) are connected and are positioned at the bottom of frame assembly (3), test cabin (6) is positioned at the top of frame assembly (3), and mist of oil gatherer (7) is installed at frame assembly (1) top.
2. according to the described CVT valve body of claim 1 performance testing device, it is characterized in that: be used on the described frame assembly (3) installation test storehouse (6) the position folding door (8) is installed.
3. according to the described CVT valve body of claim 1 performance testing device, it is characterized in that: the top of described frame assembly (3) is equipped with ear stud (9).
4. according to the described CVT valve body of claim 1 performance testing device, it is characterized in that: the bottom of described frame assembly (3) is equipped with lower margin regulator (10).
5. according to the described CVT valve body of claim 1 performance testing device, it is characterized in that: the inner control circuit of described controller (1) comprises CAN communication controller (204), 32 passage PXI data collecting cards (205), 16 passage PXI data collecting cards (206), internal memory (207) and the embedded controller (208) that is installed in the PXI cabinet (209), wherein 32 passage PXI data collecting cards (205) are connected with strain amplifier (201) by connection terminal shielding wire casing (203), and the other end of described strain amplifier (201) is used to connect sensor external; Described emergency operation switch (202) is connected with connection terminal shielding wire casing (3); Described PXI cabinet (209) be linked in sequence voltage regulator (210), uninterrupted power source (211) and main control computer (212), main control computer (212) connects the TCP/IP communication respectively and connects
(213), display (214), mouse (215) and keyboard (216); Described TCP/IP communication interface (213) is connected with PXI cabinet (209).
6. according to the described CVT valve body of claim 1 performance testing device, it is characterized in that: described hydraulic system (4) comprises double-layer heat insulation fuel tank (301), be provided with electromagnet (302) in the double-layer heat insulation fuel tank (301), well heater (303), oil return filter screen (308), liquid level gauge (309) and refrigeratory (210), be connected with air strainer (304) on the double-layer heat insulation fuel tank (301), thermometer (305), coarse filter (306), two position alarm switch (307), stirrer (340) and ball valve (342), oil return filter screen (308) connects measured piece (344) by oil return flowmeter (330), refrigeratory (310) be linked in sequence electromagnetism water valve (323) and water filter (311); Coarse filter (336) gear-type pump (314) that is linked in sequence, fine filter (318), throttling valve (328) and accumulator (329), gear-type pump (314) connects motor (312) by shaft coupling (313), proportional pressure control valve (315) inserts between fine filter (318) and the throttling valve (328), pressure measuring tie-in (335), solenoid directional control valve (319) and manual ball valve (320) are linked in sequence and insert between fine filter (318) and the throttling valve (328), measured piece (344) hydraulic quick coupler (326) that is linked in sequence, flow sensor (325), manual governing valve (322) and proportional reversing valve (338) in parallel, hand-operated direction valve (343) back is inserted between fine filter (318) and the throttling valve (328); Be connected with temperature sensor (324) and first pressure transducer (331) between hydraulic quick coupler (326) and the measured piece (344); One end of flow speed control valve (339) connects oil return filter screen (308) by measured piece (344), the other end inserts between gear-type pump (314) and the fine filter (318), throttling valve (321) one terminations are gone into double-layer heat insulation fuel tank (301), and the other end inserts between manual governing valve (322) and the flow sensor (325); Tensimeter (316) and manually surplus valve (317) series connection back is in parallel with safety valve (337) is attempted by between gear-type pump (314) and the fine filter (318) and between double-layer heat insulation fuel tank (301) and the throttling valve (321); Solenoid directional control valve (327) is pressed (334) and the 5th pressure transducer (336) to be connected the back with second pressure transducer (332), the 3rd pressure transducer (333), the 4th pressure transducer respectively and is inserted measured piece (344) by pressure measuring tie-in (341).
7. according to the described CVT valve body of claim 1 performance testing device, it is characterized in that: described hydraulic reservoir (5) comprises casing (401), and the bottom of the right side wall of described casing (401) is provided with well heater (402) and cooling water pond (403); The left side wall of described casing (401) is provided with thermometer (404), high-temperature filter (405) and liquid level gauge (406); The bottom of the antetheca of described casing (401) is provided with fuel outlet, and fuel outlet is provided with ball valve (407); The top of the antetheca of described casing (401) is provided with oil return opening, and oil return opening is provided with flange (408); The end face of described casing (401) is provided with oiling (409); The end face of described casing (401) is provided with stirring motor (410), and the stirrer that is arranged in the described casing (401) connects described motor (410).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102427446A CN101957258B (en) | 2010-08-03 | 2010-08-03 | Testing device for CVT (Constant-Voltage Transformer) valve body performance testing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102427446A CN101957258B (en) | 2010-08-03 | 2010-08-03 | Testing device for CVT (Constant-Voltage Transformer) valve body performance testing |
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| CN101957258A true CN101957258A (en) | 2011-01-26 |
| CN101957258B CN101957258B (en) | 2012-08-29 |
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| CN2010102427446A Expired - Fee Related CN101957258B (en) | 2010-08-03 | 2010-08-03 | Testing device for CVT (Constant-Voltage Transformer) valve body performance testing |
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| CN103115765A (en) * | 2013-01-28 | 2013-05-22 | 苏州宇东暖通技术有限公司 | Valve test rack |
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