CN201122131Y - Sealing ring friction performance testing device - Google Patents
Sealing ring friction performance testing device Download PDFInfo
- Publication number
- CN201122131Y CN201122131Y CNU200720138135XU CN200720138135U CN201122131Y CN 201122131 Y CN201122131 Y CN 201122131Y CN U200720138135X U CNU200720138135X U CN U200720138135XU CN 200720138135 U CN200720138135 U CN 200720138135U CN 201122131 Y CN201122131 Y CN 201122131Y
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- stationary
- ring
- seat
- stationary seat
- sealing ring
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- Expired - Fee Related
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Abstract
The utility model relates to an obsturating ring frictional behavior testing device, which includes a static ring holder, a dynamic ring holder, a static ring and a dynamic ring respectively and vertically arranged on the static ring holder and the dynamic ring holder. A liquid inletting communication hole communicated with a liquid cavity in the static ring is arranged on the static ring holder, the dynamic ring is connected with a motor through a transmission shaft, a closing force pressurizing device is arranged at the lower end of the static ring holder, when pushing the static ring holder upwards, the dynamic ring can drive the static ring to rotate. The testing device of the utility model has simple structure and cheap price, and can test the performance parameters between different-specification obturating rings by changing the sizes of the dynamic ring holder and the static ring holder. The sealing is reliable, the service life is long, the maintenance period is prolonged, and the maintenance cost is lowered.
Description
Technical field
The utility model relates to a kind of sealing ring frictional behaviour proving installation.
Background technology
The mechanical seal production unit has sealing ring frictional behaviour proving installation at present, but its structure mostly is horizontal type structure greatly, when the performance of testing between the different sealing closing force lower sealing ring, must dismantle end cover, further compress or change spring, the accuracy and the efficient of test greatly reduce, and the end face temperature rise of measurement sealing ring is comparatively difficult; Existing proving installation has shortcomings such as interchangeability is poor, bad adaptability, complex structure simultaneously.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of flexible variation seal closure power, tests the vertical sealing ring frictional behaviour proving installation of performance between the different sealing closing force lower sealing ring fast.
The utility model is adopted down following technical scheme:
The utility model comprises stationary seat, rotating seat, is separately positioned on stationary ring that is vertical setting and rotating ring on stationary seat and the rotating seat, stationary seat be provided with stationary ring in the feed liquor intercommunicating pore that is connected of sap cavity, rotating ring is connected with motor by transmission shaft, the lower end of stationary seat is provided with the closing force pressue device, upwards promote stationary seat, rotating ring can drive the stationary ring rotation.
The utility model is provided with the cofferdam at the periphery of stationary seat, and the cofferdam is connected by communicating pipe and metering liquid storing cup.
The utility model is provided with by lever, counterweight and pole in the lower end of stationary seat and constitutes the closing force pressue device.
The utility model is provided with push rod between lever and stationary seat, be provided with bearing seat between push rod and the stationary seat.
The utility model is connected by the intercommunicating pore on communicating pipe and the stationary seat at the pressure fluid feedway that is made of nitrogen cylinder and surge tank,
The utility model stationary seat is provided with baffle plate, is provided with the friction torque measurement mechanism that is made of load transducer, electric wire strain gauge in a side of baffle plate.
The utility model good effect is as follows: the utility model be installed in rotating ring on the rotating seat along with the rotation of motor high speed rotating, rotating ring and be fixed between the stationary ring end face on the stationary seat and form a pair of sealing pair.The gaseous tension effect in surge tank of seal fluid medium is dirty goes into stationary seat, and arrives seal face vertically upward along the center line of stationary seat, and the liquid of leakage flows in the leakage liquid measuring cup along the aperture on the stationary seat.Counterweight is placed on an end of lever, by leverage push rod is moved upward, and stationary seat upwards slides along with promoting push rod, thereby forms the closing force of mechanical seal, and this power can be regulated arbitrarily by the counterweight weight of a side.Therefore the utility model can well be simulated the working condition of mechanical seal, and the adjusting of operating parameter is very convenient.The temperature rise of sealing ring is by temperature sensor measurement.The liquid that leaks between sealing ring is collected by liquid storing cup, but the leakage rate of measuring unit's time.Friction torque between sealing ring is measured by load transducer.The utility model is simple in structure, and low price can be by changing the size of rotating seat and stationary seat, can measure the performance parameter between the sealing ring of different size.Not only sealing is reliable, and the life-span is long, prolongs maintenance cycle, reduces maintenance cost.
Description of drawings
Accompanying drawing 1 is the utility model structural representation.
Accompanying drawing 2 is the utility model rotating ring, stationary ring structural representation.
Accompanying drawing 3 is the utility model friction torque proving installation structural representation.
In the accompanying drawings: 1 motor, 2 motor fixing plates, 3 transmission shafts, 4 rotating seats, 5 rotating rings, 6 stationary rings, 7 stationary seats, 8 friction torque measurement mechanisms, 9 push rods, 10 support sets, 11 metering liquid storing cups, 12 counterweights, 13 base plates, 14 levers, 15 steel balls, 16 back up pads, 17 nitrogen cylinders, 18 surge tanks, 19 columns, 20 cofferdam, 21 temperature sensors, 22 data collecting instruments, 23 variable-frequence governors, 24 sap cavities, 25 feed liquor intercommunicating pores, 26 bearing seats, 27 communicating pipes, 28 poles, 29 baffle plates, 30 load transducers, 31 electric wire strain gauges.
Embodiment
As accompanying drawing 1,2, shown in 3, the utility model comprises stationary seat 7, rotating seat 4, be separately positioned on stationary ring that is vertical setting 6 and rotating ring 5 on stationary seat 7 and the rotating seat 4, stationary seat 7 is provided with the feed liquor intercommunicating pore 25 that is connected with stationary ring 6 interior sap cavities 24, the pressure fluid feedway that is made of nitrogen cylinder 17 and surge tank 18 is connected by the intercommunicating pore 25 on communicating pipe 27 and the stationary seat 7, rotating ring 5 is connected with motor 1 by transmission shaft 3, the lower end of stationary seat 7 is provided with the closing force pressue device, upwards promote stationary seat 7, rotating ring 5 can drive stationary ring 6 rotations, periphery at stationary seat 7 is provided with cofferdam 20, cofferdam 20 is connected by communicating pipe and metering liquid storing cup 11, is provided with by lever 14 in the lower end of stationary seat 7, the closing force pressue device that counterweight 12 and pole 28 constitute.
The utility model is provided with push rod 9 between lever 14 and stationary seat 7, be provided with bearing seat 26 between push rod 9 and the stationary seat 7.
The utility model stationary seat 7 is provided with baffle plate 29, is provided with the friction torque measurement mechanism that is made of load transducer 30, electric wire strain gauge 31 in a side of baffle plate 29.
The utility model be installed in rotating ring 5 on the rotating seat 4 along with the rotation of motor 1 high speed rotating, the height of rotating speed can be adjusted by variable-frequence governor 23.Rotating ring 5 and be fixed on and form a pair of sealing pair between stationary ring 6 end faces on the stationary seat 7.The gaseous tension effect in surge tank 18 of seal fluid medium is dirty goes into stationary seat 7, and arriving seal face vertically upward along the center line of stationary seat 7, the liquid of leakage promptly measures in the liquid storing cup 11 along flowing into the leakage liquid measuring cup communicating pipe on the 20 lower end stationary seats 7 of cofferdam.In this experiment test device, counterweight 12 is placed on an end of lever, by lever 14 effects push rod 9 is moved upward, and stationary seat 7 upwards slides along with promoting push rod 9, thereby form the closing force of mechanical seal, and this power can be regulated arbitrarily by counterweight 12 weight of a side.Simultaneously, because this lever 14 can move up and down, make that the wearing and tearing between the sealing surface are compensated.Therefore this experiment test device can well be simulated the working condition of mechanical seal, and the adjusting of operating parameter is very convenient.The temperature rise of sealing ring is measured by temperature sensor 21.The liquid that leaks between sealing ring is collected by metering liquid storing cup 11, but the leakage rate of measuring unit's time.Friction torque between sealing ring is measured by load transducer 30.
The axial load of the utility model sealing surface is the key that guarantees the normal operation of mechanical seal, the standard machinery sealing adopts spring to load, the loading system of this experiment test device is made up of counterweight 12, lever 14 and push rod 9 etc., and the axial load size is determined by the weight adjustment of counterweight 12.Like this can be under different axial loads to the duty and the sealing property research experiment of mechanical seal, so that obtain the optimum value of operating load.
As shown in Figure 1, the utility model sealing load is provided by the compressed nitrogen in the nitrogen cylinder 17.The size of system pressure adopts reduction valve control, can guarantee that system pressure is stable.Annular seal space pressure is measured by precision pressure gauge, on nitrogen cylinder 17 outlets and surge tank 18 tensimeter is installed respectively respectively, to guarantee the accuracy of annular seal space internal pressure.
The utility model rotating speed is by controlling by variable-frequence governor 23, to regulate the rotating speed of sealing ring.
As shown in Figure 2, the utility model leakage rate is measured connecting pipe by stationary seat 7 right sides to measuring in the liquid storing cup 11.The leakage rate of measurement mechanical seal in the limiting time interval can calculate the slip between sealing ring.
As shown in Figure 1, the utility model temperature survey adopts temperature sensor 21 to measure the temperature of sealing ring end face.Sensor places apart from end face 1.5mm place, measuring junction surface temperature.Temperature rise according to end face temperature and seal fluid temperature computation sealing surface.
As accompanying drawing 1, shown in 3, the utility model friction torque measurement mechanism is by stationary seat 7, baffle plate 29, load transducer 30 and electric wire strain gauge 31 are formed, when motor drives rotating ring 5 rotates, friction force between the end face can drive stationary seat 7 and rotate together, friction force acts on the load transducer 30 by baffle plate 29, can calculate the acting force of 29 pairs of load transducers 30 of baffle plate by the reading of electric wire strain gauge 31, thereby go out the friction torque value to the distance calculation of the centre of gyration according to acting force and application point, and then can calculate friction factor between seal face, obtain the frictional behaviour of sealing ring.
Claims (6)
1, a kind of sealing ring frictional behaviour proving installation, it is characterized in that it comprises stationary seat (7), rotating seat (4), is separately positioned on stationary ring that is vertical setting (6) and rotating ring (5) on stationary seat (7) and the rotating seat (4), the feed liquor intercommunicating pore (25) that the sap cavity (24) that stationary seat (7) is provided with and stationary ring (6) is interior is connected, rotating ring (5) is connected with motor (1) by transmission shaft (3), the lower end of stationary seat (7) is provided with the closing force pressue device, upwards promote stationary seat (7), rotating ring (5) can drive stationary ring (6) rotation.
2, a kind of sealing ring frictional behaviour proving installation according to claim 1 is characterized in that being provided with cofferdam (20) at the periphery of stationary seat (7), and cofferdam (20) are connected by communicating pipe and metering liquid storing cup (11).
3, a kind of sealing ring frictional behaviour proving installation according to claim 1 is characterized in that being provided with by lever (14), counterweight (12) and pole (28) formation closing force pressue device in the lower end of stationary seat (7).
4, a kind of sealing ring frictional behaviour proving installation according to claim 3 is characterized in that being provided with push rod (9) between lever (14) and stationary seat (7), is provided with bearing seat (26) between push rod (9) and the stationary seat (7).
5, a kind of sealing ring frictional behaviour proving installation according to claim 1 is characterized in that being connected by the intercommunicating pore (25) on communicating pipe (27) and the stationary seat (7) at the pressure fluid feedway that is made of nitrogen cylinder (17) and surge tank (18),
6, a kind of sealing ring frictional behaviour proving installation according to claim 1 and 2, it is characterized in that stationary seat (7) is provided with baffle plate (29), be provided with the friction torque measurement mechanism that constitutes by load transducer (30), electric wire strain gauge (31) in a side of baffle plate (29).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720138135XU CN201122131Y (en) | 2007-12-03 | 2007-12-03 | Sealing ring friction performance testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720138135XU CN201122131Y (en) | 2007-12-03 | 2007-12-03 | Sealing ring friction performance testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201122131Y true CN201122131Y (en) | 2008-09-24 |
Family
ID=40009364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200720138135XU Expired - Fee Related CN201122131Y (en) | 2007-12-03 | 2007-12-03 | Sealing ring friction performance testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201122131Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102175370A (en) * | 2011-03-04 | 2011-09-07 | 青岛开世密封工业有限公司 | Friction torque testing machine and method thereof for testing friction torque of rotary shaft lip seal ring |
| CN102507166A (en) * | 2011-10-17 | 2012-06-20 | 西南石油大学 | Bilaterally-charging high-pressure dynamic-seal test bed and test method |
| CN102879288A (en) * | 2012-09-26 | 2013-01-16 | 烟台润蚨祥油封有限公司 | Testing machine for oil seal abrasion resistance |
| CN103207144A (en) * | 2013-04-24 | 2013-07-17 | 深圳市怡化电脑有限公司 | Friction property test device |
| CN109540719A (en) * | 2018-12-12 | 2019-03-29 | 中国航空综合技术研究所 | Rubber system O-ring seals reciprocation sealing wear-out life test method |
| CN109632287A (en) * | 2018-12-13 | 2019-04-16 | 西安航天动力研究所 | A kind of radial seal frictional force-sealing property detection device |
| CN117780624A (en) * | 2024-02-26 | 2024-03-29 | 大庆文迪石油设备有限公司 | Adjustable mechanical seal structure for pump |
-
2007
- 2007-12-03 CN CNU200720138135XU patent/CN201122131Y/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102175370A (en) * | 2011-03-04 | 2011-09-07 | 青岛开世密封工业有限公司 | Friction torque testing machine and method thereof for testing friction torque of rotary shaft lip seal ring |
| CN102175370B (en) * | 2011-03-04 | 2012-12-05 | 青岛开世密封工业有限公司 | Friction torque testing method for testing friction torque of rotary shaft lip seal ring |
| CN102507166A (en) * | 2011-10-17 | 2012-06-20 | 西南石油大学 | Bilaterally-charging high-pressure dynamic-seal test bed and test method |
| CN102507166B (en) * | 2011-10-17 | 2014-01-08 | 西南石油大学 | Bilaterally-charging high-pressure dynamic-seal test bed and test method |
| CN102879288A (en) * | 2012-09-26 | 2013-01-16 | 烟台润蚨祥油封有限公司 | Testing machine for oil seal abrasion resistance |
| CN103207144A (en) * | 2013-04-24 | 2013-07-17 | 深圳市怡化电脑有限公司 | Friction property test device |
| CN103207144B (en) * | 2013-04-24 | 2015-09-02 | 深圳怡化电脑股份有限公司 | Friction performance testing device |
| CN109540719A (en) * | 2018-12-12 | 2019-03-29 | 中国航空综合技术研究所 | Rubber system O-ring seals reciprocation sealing wear-out life test method |
| CN109540719B (en) * | 2018-12-12 | 2021-05-07 | 中国航空综合技术研究所 | Correction test method for wear life model parameters of O-shaped sealing ring made of rubber |
| CN109632287A (en) * | 2018-12-13 | 2019-04-16 | 西安航天动力研究所 | A kind of radial seal frictional force-sealing property detection device |
| CN117780624A (en) * | 2024-02-26 | 2024-03-29 | 大庆文迪石油设备有限公司 | Adjustable mechanical seal structure for pump |
| CN117780624B (en) * | 2024-02-26 | 2024-05-14 | 大庆文迪石油设备有限公司 | Adjustable mechanical seal structure for pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |