CN112683523A - Dynamic sealing ring testing machine - Google Patents
Dynamic sealing ring testing machine Download PDFInfo
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- CN112683523A CN112683523A CN202011533546.5A CN202011533546A CN112683523A CN 112683523 A CN112683523 A CN 112683523A CN 202011533546 A CN202011533546 A CN 202011533546A CN 112683523 A CN112683523 A CN 112683523A
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- 238000012360 testing method Methods 0.000 title claims abstract description 94
- 238000007789 sealing Methods 0.000 title claims abstract description 56
- 230000007246 mechanism Effects 0.000 claims abstract description 17
- 238000004088 simulation Methods 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000005299 abrasion Methods 0.000 abstract description 6
- 230000008878 coupling Effects 0.000 abstract description 2
- 238000010168 coupling process Methods 0.000 abstract description 2
- 238000005859 coupling reaction Methods 0.000 abstract description 2
- 125000004122 cyclic group Chemical group 0.000 abstract description 2
- 238000005259 measurement Methods 0.000 abstract description 2
- 230000002159 abnormal effect Effects 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
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- 230000004048 modification Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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Abstract
The invention provides a dynamic sealing ring testing machine which comprises a control module, a testing module and an oil circuit module, wherein the testing module is used for simulating the working environment of a gearbox; this test module includes driving motor and experimental frock, experimental frock include with driving motor passes through the main shaft that the track is connected, the cover is equipped with torque measurement appearance, shaft coupling and oil blanket test mechanism in proper order on the main shaft. The invention simulates the actual working environment of the sealing ring through the tester, measures the leakage condition, the friction torque, the abrasion loss in unit time and the performance after abrasion of the sealing ring under different working conditions by adjusting the oil temperature, the oil pressure and the rotating speed through the control module, measures the temperature and the pressure at multiple points, ensures the safety and the stability of the test, forms an oil supply loop between the oil tank and the test mechanism, realizes the cyclic utilization of the oil for the test, and effectively reduces the resource cost.
Description
Technical Field
The invention relates to the technical field of detection of sealing rings, in particular to a dynamic sealing ring testing machine.
Background
The dynamic sealing ring is an annular sealing element with an opening, is mainly applied to a hydraulic module of an automatic gearbox, is arranged in an annular groove of a gearbox sleeve, the sleeve and a shaft rotate together, the dynamic sealing ring is tightly abutted against the inner hole wall of a static part by the elasticity of the dynamic sealing ring after a notch is pressed together, the sealing effect can be achieved, and the oil pressure in each cavity is ensured by controlling the oil leakage amount.
Therefore, the sealing ring determines the service performance and the service life of the mechanical seal of the gearbox to a great extent, and needs not to be damaged under working conditions (such as pressure, temperature, sliding speed and the like), the deformation should be as small as possible, and the sealing performance can still be maintained when the working conditions fluctuate. However, in the prior art, a means for effectively detecting the dynamic sealing effect of the sealing ring before assembly is lacked.
Disclosure of Invention
The invention aims to provide a testing machine which can simulate the actual working condition of a gearbox to measure the performance condition of a sealing ring under different working conditions.
In order to achieve the purpose, the invention adopts the following technical scheme:
a dynamic sealing ring testing machine comprises a control module, a testing module and an oil circuit module, wherein the testing module is used for simulating the working environment of a gearbox; the test module comprises a driving motor and a test tool, wherein the test tool comprises a main shaft connected with the driving motor through a track, and a torque tester, a coupler and an oil seal test mechanism are sequentially sleeved on the main shaft; the control module can adjust the rotating speed of the driving motor and the oil temperature and oil pressure in the oil seal testing mechanism, and the sealing, friction and durability performances of the sealing ring under different simulation working conditions are measured.
Further, the control module comprises a control unit for setting and adjusting oil temperature, oil pressure and rotating speed, a display unit for observing various performance parameters and an abnormity warning unit.
Further, the oil seal test mechanism is established including the cover the epaxial sealing ring test axle of main shaft and tube-shape shell, the oil-out has been seted up at the shell top, open in the middle of the shell bottom is equipped with the oil inlet and lets out the leakage mouth, a plurality of notch that is used for fixed seal ring is seted up to the excircle of sealing ring test axle.
Further, the oil circuit module includes the oil tank, the oil pressure pump of being connected with the oil tank, fuel feeding return circuit and oil leak return circuit, the fuel feeding return circuit includes oil pressure and flow control valve one, solenoid valve one, oil pressure sensor, oil blanket test mechanism, oil pressure and flow control valve two and cooling device that connect gradually through the pipeline, the oil leak return circuit includes the solenoid valve two that connects gradually through the pipeline, the one end of solenoid valve two is used for the oil leakage survey, and the other end is connected with the oil tank.
Preferably, a heating device is arranged in the oil tank.
Preferably, the rotating speed regulation range of the working environment simulation is 0-10000rpm, the oil pressure regulation range is 0-7MPa, and the oil temperature regulation range is room temperature-150 ℃.
According to the technical scheme, the actual working environment of the sealing ring is simulated through the testing machine, the leakage condition, the friction torque, the abrasion loss in unit time and the performance after abrasion of the sealing ring under different working conditions are measured through the oil temperature, the oil pressure and the rotating speed which are regulated by the control module, the safety and the stability of the test are ensured through the multi-point temperature and pressure measurement, an oil supply loop is formed between the oil tank and the testing mechanism, the cyclic utilization of the oil for the test is realized, and the resource cost is effectively reduced.
Drawings
FIG. 1 is a block diagram showing the overall structure of the present invention;
FIG. 2 is a schematic diagram of the construction of a test module according to the present invention;
FIG. 3 is a schematic of the oil circuit of the present invention;
FIG. 4 is a schematic view of an oil circuit of the present invention with two seal rings tested simultaneously;
FIG. 5 is a table of durability test data;
FIG. 6 is a graph of a seal test at 40 ℃;
FIG. 7 is a graph of a sealing test at 80 ℃;
FIG. 8 is a graph of a seal test at 120 ℃;
FIG. 9 is a graph of a spin friction test;
in the figure: 1. a control module; 11. a control unit; 12. a display unit; 13. an abnormality alarm unit; 2. a test module; 21. a drive motor; 22. a main shaft; 23. a torque meter; 24. a coupling; 25. an oil seal testing mechanism; 251. a seal ring test shaft; 252. a housing; 253. an oil outlet; 254. an oil inlet; 255. a leakage port; 3. an oil circuit module; 31. an oil tank; 32. an oil pressure pump; 331. a first oil pressure and flow regulating valve; 332. a first electromagnetic valve; 333. an oil pressure sensor; 334. a second oil pressure and flow regulating valve; 34. and a second electromagnetic valve.
Detailed Description
A preferred embodiment of the present invention will be described in detail below with reference to the accompanying drawings.
The dynamic sealing ring testing machine shown in fig. 1 comprises a control module 1, a testing module 2 for simulating the working environment of a gearbox and an oil way module 3; the test module comprises a driving motor 21 and a test tool, wherein the test tool comprises a main shaft 22 connected with the driving motor through a crawler belt, and a torque tester 23, a coupler 24 and an oil seal test mechanism 25 are sequentially sleeved on the main shaft; the control module can adjust the rotating speed of the driving motor and the oil temperature and oil pressure in the oil seal testing mechanism, and the performance parameters of the sealing ring under different simulation working conditions are measured. The performance parameters of the sealing ring according to the preferred embodiment include the leakage condition of the sealing ring under different working conditions, the friction torque, the abrasion amount after durable operation in unit time and the performance after abrasion.
The control module of the preferred embodiment comprises a control unit 11 for setting and adjusting oil temperature, oil pressure and rotating speed, a display unit 12 for observing various performance parameters and an abnormal alarm unit 13; on one hand, the control module can adjust the rotating speed of a main shaft in the test tool by controlling the driving motor, simulate the rotation of the sealing ring in the gearbox, and control the oil temperature and the oil pressure in the oil seal test mechanism by the heating device and the oil pressure pump; on the other hand, the control module is connected with the test module and the oil circuit module, and acquires and detects dynamic data in the test process, wherein the rotating speed adjusting range is 0-10000rpm, the oil pressure adjusting range is 0-7MPa, the oil temperature adjusting range is room temperature-150 ℃, and if the rotating speed, the temperature and the pressure are abnormal, the control module can immediately interrupt the test and send an alarm through the abnormal alarm unit, so that the safety and the stability of the test process are effectively ensured.
As shown in fig. 2, the oil seal testing mechanism comprises a sealing ring testing shaft 251 and a cylindrical housing 252, the sealing ring testing shaft 251 and the cylindrical housing 252 are sleeved on the main shaft, an oil outlet 253 is formed in the top of the housing, an oil inlet 254 and a leakage port 255 are formed in the middle of the bottom of the housing, and a plurality of notches for fixing the sealing rings are formed in the outer circle of the sealing ring testing shaft and used for simulating the working state of the sealing rings in the gearbox.
The oil circuit module 3 shown in fig. 3 includes an oil tank 31, an oil pressure pump 32 connected to the oil tank, an oil supply circuit including a first oil pressure and flow control valve 331, a first electromagnetic valve 332, an oil pressure sensor 333, an oil seal testing mechanism 25, a second oil pressure and flow control valve 335, and a cooling device 336, which are sequentially connected through a pipeline, and an oil leakage circuit including a second electromagnetic valve 34, one end of which is used for oil leakage measurement and the other end of which is connected to the oil tank.
In order to improve the test efficiency, the performance parameters of the plurality of sealing rings can be measured and tested at the same time, as shown in fig. 4, in the preferred embodiment, two sealing rings can be measured and tested at the same time, and each sealing ring is controlled and operated by an independent oil supply loop and an independent oil leakage loop, so that the test stability is ensured.
In specific use, the testing machine provided by the invention can complete the following determination tests by simulating the working environment of the gearbox:
the sealing test is carried out, and the sealing performance of the sealing ring is calculated by measuring the oil leakage amount in unit time under different working conditions;
a rotating friction test, which is to measure the friction torque in unit time under different working conditions;
the durability test was conducted by performing a durable operation for a certain period of time, and the wear amount and the performance after wear of the seal ring were measured.
The following is illustrated by specific examples:
test subjects: 2 pieces of seal test rings with the diameter of 26.2 are made of PPS-J411;
the conditions of the durability test: the oil pressure is 1.6Mpa, the rotating speed is 6500rpm, the oil temperature is 105 ℃, the oil used for the test is Kunlun Vanliyang 6AT oil, the dimensional changes of the sealing test ring when the sealing test ring is durable for 100h, 200h and 500h are respectively measured, mainly the height and the thickness of the ring, and the test data are shown in figure 5;
sealing test conditions: on the basis of the endurance test, the oil leakage amount of the sealing test ring before endurance for 500 hours and after endurance for 500 hours under different oil pressures in the environment with the oil temperature of 40 ℃, 80 ℃ and 120 ℃ is respectively measured, and the test result is shown in fig. 6-8;
conditions for the rotational friction test: the resistance torque of the seal test ring under the conditions of the rotation speed of 6000rpm, the oil temperature of 80 ℃ and the oil pressure of 0-1.6MPa is measured once per 0.2MPa of pressurization, and the test result is shown in FIG. 9.
From the above test results, the seal ring test according to the present invention can more accurately measure the leakage condition, the friction torque, the wear amount after the endurance operation in unit time, and the performance after the wear of the seal ring under different conditions.
The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements made to the technical solution of the present invention by those skilled in the art without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.
Claims (6)
1. A dynamic sealing ring testing machine is characterized by comprising a control module (1), a testing module (2) for simulating the working environment of a gearbox and an oil way module (3); the test module comprises a driving motor (21) and a test tool, wherein the test tool comprises a main shaft (22) connected with the driving motor through a crawler belt, and a torque tester (23), a coupler (24) and an oil seal test mechanism (25) are sequentially sleeved on the main shaft; the control module can adjust the rotating speed of the driving motor and the oil temperature and oil pressure in the oil seal testing mechanism, and the sealing, friction and durability performances of the sealing ring under different simulation working conditions are measured.
2. The dynamic sealing ring testing machine according to claim 1, wherein the control module comprises a control unit (11) for setting and adjusting oil temperature, oil pressure and rotating speed, a display unit (12) for observing various performance parameters and an abnormity warning unit (13).
3. The dynamic sealing ring testing machine according to claim 1, wherein the oil seal testing mechanism comprises a sealing ring testing shaft (251) sleeved on the main shaft and a cylindrical shell (252), an oil outlet (253) is formed in the top of the shell, an oil inlet (254) and a leakage port (255) are formed in the middle of the bottom of the shell, and a plurality of notches for fixing the sealing ring are formed in the outer circle of the sealing ring testing shaft.
4. The dynamic sealing ring testing machine of claim 1, wherein the oil circuit module (3) comprises an oil tank (31), an oil pressure pump (32) connected with the oil tank, an oil supply circuit and an oil leakage circuit, the oil supply circuit comprises a first oil pressure and flow control valve (331), a first electromagnetic valve (332), an oil pressure sensor (333), an oil seal testing mechanism (25), a second oil pressure and flow control valve (335) and a cooling device (336) which are sequentially connected through pipelines, the oil leakage circuit comprises a second electromagnetic valve (34) which is sequentially connected through a pipeline, one end of the second electromagnetic valve is used for oil leakage determination, and the other end of the second electromagnetic valve is connected with the oil tank.
5. The dynamic sealing ring testing machine according to claim 4, characterized in that a heating device is arranged in the oil tank (31).
6. The dynamic sealing ring testing machine of claim 1, wherein the rotation speed range of the working environment simulation is 0-10000rpm, the oil pressure range is 0-7MPa, and the oil temperature range is room temperature-150 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011533546.5A CN112683523A (en) | 2020-12-22 | 2020-12-22 | Dynamic sealing ring testing machine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011533546.5A CN112683523A (en) | 2020-12-22 | 2020-12-22 | Dynamic sealing ring testing machine |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113670602A (en) * | 2021-07-29 | 2021-11-19 | 西安交通大学 | Rotary dynamic seal loss testing device and method |
| CN114252257A (en) * | 2021-12-13 | 2022-03-29 | 安庆帝伯功能塑料有限公司 | Dynamic sealing ring testing machine |
| CN114354148A (en) * | 2021-11-22 | 2022-04-15 | 中广核核电运营有限公司 | Oil seal fatigue running-in test device |
| CN116989998A (en) * | 2023-07-13 | 2023-11-03 | 海辰精密机械(嘉兴)股份有限公司 | Detection device |
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| CN111947933A (en) * | 2020-07-07 | 2020-11-17 | 南京航空航天大学 | Comprehensive test device and test method for leakage, heat transfer, friction and wear characteristics of aircraft engine dynamic seal |
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| TWM295740U (en) * | 2006-02-27 | 2006-08-11 | Hsin Chi Machinery Co Ltd | Machine for testing lifetime of sealing reciprocating oil sealer |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113670602A (en) * | 2021-07-29 | 2021-11-19 | 西安交通大学 | Rotary dynamic seal loss testing device and method |
| CN114354148A (en) * | 2021-11-22 | 2022-04-15 | 中广核核电运营有限公司 | Oil seal fatigue running-in test device |
| CN114252257A (en) * | 2021-12-13 | 2022-03-29 | 安庆帝伯功能塑料有限公司 | Dynamic sealing ring testing machine |
| CN114252257B (en) * | 2021-12-13 | 2023-11-03 | 安庆帝伯功能塑料有限公司 | Dynamic sealing ring testing machine |
| CN116989998A (en) * | 2023-07-13 | 2023-11-03 | 海辰精密机械(嘉兴)股份有限公司 | Detection device |
| CN116989998B (en) * | 2023-07-13 | 2024-07-05 | 海辰精密机械(嘉兴)股份有限公司 | Locking ring detection device |
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