CN102221456A - Sealing ring life test apparatus - Google Patents
Sealing ring life test apparatus Download PDFInfo
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- CN102221456A CN102221456A CN 201110083101 CN201110083101A CN102221456A CN 102221456 A CN102221456 A CN 102221456A CN 201110083101 CN201110083101 CN 201110083101 CN 201110083101 A CN201110083101 A CN 201110083101A CN 102221456 A CN102221456 A CN 102221456A
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- housing
- rotating shaft
- ring seal
- tooth bar
- gear
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Abstract
Provided is a sealing ring life test apparatus, comprising a frame which is provided with a hollow housing. The housing is provided with a high pressure air inlet and is filled with hydraulic oil. A set of rotating shaft is provided inside the housing. The two ends of the rotating shaft pass through the housing from shaft apertures. A lining cover is provided between the rotating shaft and the shaft apertures. A bearing used for supporting the rotating shaft and a sealing ring used for sealing are provided inside the lining cover. The sealing ring is provided between the lining cover and the rotating shaft. The lining cover is connected to the housing through the external screw threads of the lining cover. One end of the rotating shaft outside the housing is fixed with a gear. A tooth bar engaged with the gear is provided below the gear. The tooth bar is provided in a chute and is in a sliding fit with the chute. The tooth bar is connected with a motor which is used to drive the tooth bar to slide. The test apparatus imitates the working principle of a door closer. When the test apparatus is used, the tooth bar and the gear cooperate to drive the rotating shaft to rotate back and forth to test the duration of service of the sealing ring in the back and forth rotating process of the rotating shaft, thereby a qualified sealing ring can be selected and the service life of the door closer is guaranteed.
Description
Technical field
The present invention relates to a kind of O-ring seal proving installation, especially a kind of O-ring seal endurance testing device that is used to detect the door closer O-ring seal.
Background technology
Modern hydraulic pressure door closer is called for short the patent that door closer starts from twentieth century initial stage American registration, and it is different from traditional door closer, is to reach buffer action by the liquid in the door closer is carried out throttling.The core of hydraulic pressure door closer design philosophy is to realize the control to the process of closing the door, and the various functional parameters of the process of closing the door can be regulated according to human needs.The meaning of door closer not only is door is closed automatically, can also protect doorframe and door body to avoid bump, the more important thing is that door closer has become a very important operating part of modern architecture intelligent management.Door closer mainly is used in commercial and the public building, but situation about using is at home also arranged.They have a lot of purposes, and wherein topmost purposes is that door is closed voluntarily, reach antitheft purpose and limit spreading of fire.
Present hydraulic pressure door closer, as the disclosed a kind of hydraulic damping door closer of Chinese patent application CN98111919.0, its basic building block has supporting guide, transmission gear (i.e. tooth axle in this patented claim), back-moving spring (i.e. accumulator in this patented claim), retaining valve, tooth bar plunger (i.e. piston in this patented claim), throttling valve core and housing, end cap, O-ring seal and connecting rod (i.e. flat bar in this patented claim).Housing and connecting rod play a part fixedly door closer and are connected door leaf and doorframe.The principle of work of door closer is: when opening the door, and the action of door body drivening rod, and transmission gear is rotated, drive the tooth bar plunger and move to right-hand.The process medi-spring that moves to right at plunger is compressed, and the hydraulic oil in the right chamber is pressurized also.The retaining valve spheroid in plunger left side is opened under the effect of oil pressure, and the hydraulic oil in the right chamber flows in the left chamber through retaining valve.After the process of opening the door was finished, because spring is compressed in opening process, the elastic potential energy of being put aside was released, and with the plunger thruster of turning left, drove transmission gear and door closer connecting rod and rotated, and door is closed.In the spring dispose procedure, because the hydraulic oil in chamber, a door closer left side is compressed, retaining valve is closed, and hydraulic oil can only flow out by the slit between housing and the plunger, and is back to right chamber through aperture and 2 runners that throttling valve core is housed on the plunger.Therefore hydraulic oil discharges spring and has constituted resistance, has promptly reached the effect of buffering by throttling, and the speed that door is closed is under control.Throttling valve on the valve body can be regulated, different trip segment, the transformable speed of closing of may command.Although door closer structure, size that different manufacturers is produced are variant, principle is identical.
The quality problems of door closer most critical are exactly whether leakage of oil, because being the throttling of convection cell in its internal hydraulic pressure system of dependence, door closer realizes control to the process of closing the door, leakage of oil means the inefficacy of hydraulic system, so hydraulic system is the decision door closer sole criterion in serviceable life.
The transmission gear of door closer is fixed in the rotating shaft, thereby transmission gear is able to freely rotate.And rotating shaft is mounted in the housing, is provided with O-ring seal between rotating shaft and the housing.Whether whether leakage of oil is decided by this place's O-ring seal quality to door closer.So door closer is very high to the requirement of O-ring seal, need provide a kind of and can imitate the door closer environment, the proving installation that the O-ring seal life-span is tested, thus the O-ring seal of selecting for use can be met the requirements, guarantee the quality of door closer.
Summary of the invention
The present invention will solve the shortcoming of above-mentioned prior art, provides a kind of simple and reasonable, can imitate the working environment of door closer carries out life test to O-ring seal O-ring seal endurance testing device.
The present invention solves the technical scheme that its technical matters adopts: this O-ring seal endurance testing device, comprise frame, and hollow housing is installed on the frame, have the high pressure admission mouth on this housing, hydraulic oil is housed in the housing; Be provided with one group of rotating shaft in the housing, the two ends of this rotating shaft pass housing from axis hole, are provided with the lining lid between rotating shaft and the axis hole, and the lining lid is inner to be equipped with bearing that is used for supporting revolving shaft and the O-ring seal that is used to seal, O-ring seal is located between lining lid and the rotating shaft, and the lining lid is connected with housing by its outside screw thread; The end of rotating shaft outside housing is fixed with gear, and the below of gear is provided with the tooth bar that is meshed with it, and this tooth bar is located at chute, and is with this chute and is slidingly matched, and is connected with the motor that drives its slip on the tooth bar.The principle of work of this proving installation imitation door closer, contain hydraulic oil in housing, hydraulic oil is enclosed in the housing by lining lid, O-ring seal, rotating shaft, and rotating shaft is rotatably assorted with lining lid, bearing, O-ring seal, and bearing plays the effect of supporting revolving shaft.During use, rack pinion cooperates, drive rotating shaft and come back rotation, in order to the test O-ring seal in the rotating shaft term of life in the rotation process back and forth, thereby can select qualified O-ring seal for use, guarantee the serviceable life of door closer.During use, the high pressure admission mouth is connected with high-pressure air source, increase the pressure of hydraulic oil in the housing, imitation hydraulic oil situation by compression, more true to nature with the environmental facies ratio of door closer inside, owing to the pressure effect, in a single day O-ring seal has breakage in addition, promptly there is oil to spill, can intuitively more effectively shows testing result from this.
Motor is mounted on the rotating disk on the frame, is connected with connecting rod on the edge of rotating disk, and the other end of this connecting rod is movably connected on the tooth bar.The rotating band carry-over bar of rotating disk slidably reciprocates, and is simple and reasonable.Mechanical drive increases reliability, thereby can guarantee running for a long time.
Housing has a pair of, is installed in side by side on the frame, and the test cell of being made up of rotating shaft, lining lid, gear on each housing has two groups or more, and each test cell is arranged side by side, and the gear on the same housing is meshed with same toothed rack; The tooth bar of two housings is fixed together by screw rod, and the end of two tooth bars links together by motion bar, and the two ends of motion bar are coupling on tooth bar by bearing pin, and wherein the end that is connected with tooth bar of connecting rod is connected on this motion bar.Like this, two tooth bars are linked together, a motor can drive two tooth bars simultaneously and slidably reciprocate; One toothed rack can drive a plurality of gears again, so this device can be tested a plurality of O-ring seals simultaneously with a motor, improves testing efficiency.Screw rod can be regulated the distance between tooth bar, makes two tooth bars keep suitable distance.
Housing is provided with oil pressure gauge.Oil pressure gauge is used to test the hydraulic pressure in the instrument connection, keeps the interior oil pressure of housing in suitable scope.
The outer end of housing is provided with oil drain out, and oil drain out is connected with draw-off pipe.Oil drain out is used to discharge the hydraulic oil in the housing, is used to change hydraulic oil.
Housing is fixed on the base, and chute is opened on base.This structure helps regulating, the position of mounting teeth wheel and rack, and wheel and rack is cooperated more.
The wheel that can roll back and forth in chute is installed on the tooth bar.Tooth bar is slidably reciprocated in chute more swimmingly.
The lining lid outside is provided with the limiting section that prevents that O-ring seal from outwards skidding off, and limiting section and rotating shaft are clearance fit, the convenient rotation.Bearing and limiting section effectively limit O-ring seal in lining lid, prevent from that O-ring seal from skidding off to drop in the rotating shaft rotation process.
The effect that the present invention is useful is: the present invention imitates the principle of work of door closer, can carry out life test under the environment for use of door closer to O-ring seal, thereby can select qualified O-ring seal for use, guarantees the quality of door closer.In addition, this proving installation can be tested simultaneously to a plurality of O-ring seals, the efficient height, and test is accurately, and is simple and reasonable, and low cost of manufacture helps promoting.Whole test board adopts physical construction, and is reliable, can not test for a long time and can damage long service life.
Description of drawings
Fig. 1 is the one-piece construction synoptic diagram of O-ring seal endurance testing device of the present invention;
Fig. 2 is the another side structural representation of O-ring seal endurance testing device of the present invention;
Fig. 3 is the cut-open view at O-ring seal endurance testing device O-ring seal of the present invention place;
Fig. 4 is the structure for amplifying synoptic diagram of A part among Fig. 3;
Fig. 5 is the structural representation of housing of the present invention;
Fig. 6 is the scheme of installation of O-ring seal of the present invention.
Description of reference numerals: frame 1, housing 2, axis hole 2-1, oil drain out 2-2, lining covers 3, limiting section 3-1, rotating shaft 4, screw 4-1, air intake opening 5, draw-off pipe 6, oil pressure gauge 7, gear 8, tooth bar 9, wheel 9-1, connecting rod 10, motor 11, rotating disk 12, screw rod 13, motion bar 14, bearing pin 15, base 16, chute 16-1, O-ring seal 17, bearing 18.
Embodiment
The invention will be further described below in conjunction with accompanying drawing:
With reference to accompanying drawing: this O-ring seal endurance testing device, comprise frame 1, hollow housing 2 is installed on the frame 1, have high pressure admission mouth 5 on this housing 2, in the housing 2 hydraulic oil is housed; Be provided with one group of rotating shaft 4 in the housing 2, the two ends of this rotating shaft 4 pass housing 2 from axis hole 2-1, be provided with lining between rotating shaft 4 and the axis hole 2-1 and cover 3, lining covers 3 inside bearing 18 that is used for supporting revolving shaft 4 and the O-ring seal 17 that is used to seal is housed, O-ring seal 17 be located at lining cover 3 with rotating shaft 4 between, serve as a contrast and to cover 3 and pass through its outside screw thread and be connected with housing 2; The end of rotating shaft 4 outside housing 2 is fixed with gear 8, and this gear 8 passes these gear 8 centres by a screw 4-1 and is fixed on the end of rotating shaft 4.The below of gear 8 is provided with the tooth bar 9 that is meshed with it, and this tooth bar 9 is located at chute 16-1, and is with this chute 16-1 and is slidingly matched, and is connected with the motor 11 that drives its slip on the tooth bar 9.Motor 11 is mounted on the rotating disk 12 on the frame 1, is connected with connecting rod 10 on the edge of rotating disk 12, and the other end of this connecting rod 10 is movably connected on the tooth bar 9.
During use, O-ring seal 17 is placed on lining to be covered in 3, put into bearing 18, lining is covered 3 to be enclosed within rotating shaft 4 two ends and to be connected the axis hole 2-1 place at housing 2 two ends, high pressure admission mouth 5 is connected with high-pressure air source, then hydraulic oil in the test board 2 is forced into appointment hydraulic pressure, the sealing of observation test O-ring seal 17.Then, starter motor 11 gyrates rotating shaft 4 back and forth, damages up to O-ring seal 17, calculates its serviceable life.
The present invention imitates the principle of work of door closer, can carry out life test under the environment for use of door closer to O-ring seal 17, thereby can select qualified O-ring seal 17 for use, guarantees the quality of door closer.In addition, this proving installation can be tested simultaneously to a plurality of O-ring seals 17, the efficient height, and test is accurately, and is simple and reasonable, and low cost of manufacture helps promoting.Whole test board adopts physical construction, and is reliable, can not test for a long time and can damage long service life.
Though the present invention illustrates and describes by the reference preferred embodiment,, those skilled in the art should understand, and in the scope of claims, can do the various variation on form and the details.
Claims (8)
1. an O-ring seal endurance testing device comprises frame (1), it is characterized in that: hollow housing (2) is installed on the frame (1), has high pressure admission mouth (5) on this housing (2), housing is equipped with hydraulic oil in (2); Be provided with one group of rotating shaft (4) in the described housing (2), the two ends of this rotating shaft (4) pass housing (2) from axis hole (2-1), be provided with lining lid (3) between rotating shaft (4) and the axis hole (2-1), bearing (18) that is used for supporting revolving shaft (4) and the O-ring seal (17) that is used to seal are equipped with in lining lid (3) inside, O-ring seal (17) is located between lining lid (3) and the rotating shaft (4), and lining lid (3) is connected with housing (2) by its outside screw thread; The end of rotating shaft (4) outside housing (2) is fixed with gear (8), the below of gear (8) is provided with the tooth bar (9) that is meshed with it, this tooth bar (9) is located at chute (16-1), and with this chute (16-1)) be and be slidingly matched, be connected with the motor (11) that drives its slip on the tooth bar (9).
2. O-ring seal endurance testing device according to claim 1, it is characterized in that: described motor (11) is connected with the rotating disk (12) that is installed on the frame (1), be connected with connecting rod (10) on the edge of rotating disk (12), the other end of this connecting rod (10) is movably connected on the tooth bar (9).
3. O-ring seal endurance testing device according to claim 2, it is characterized in that: described housing (2) has a pair of, be installed in side by side on the frame (1), each housing (2) is gone up the test cell of being made up of rotating shaft (4), lining lid (3), gear (8) two groups or more, and each test cell is arranged side by side, and the gear (8) on the same housing (2) is meshed with same toothed rack (9); The tooth bar (9) of two housings (2) is fixed together by screw rod (13), and the end of two tooth bars (9) links together by motion bar (14), the two ends of motion bar (14) are coupling on tooth bar (9) by bearing pin (15), and the end that described connecting rod (10) is connected with tooth bar (9) is connected on this motion bar (14).
4. O-ring seal endurance testing device according to claim 1 and 2 is characterized in that: described housing (2) is provided with oil pressure gauge (7).
5. O-ring seal endurance testing device according to claim 1 and 2 is characterized in that: the outer end of described housing (2) is provided with oil drain out (2-2), and oil drain out (2-2) is connected with draw-off pipe (6).
6. O-ring seal endurance testing device according to claim 1 is characterized in that: described housing (2) is fixed on the base (16), and described chute (16-1) is opened on this base (16).
7. O-ring seal endurance testing device according to claim 6 is characterized in that: the wheel (9-1) that can roll back and forth in chute (16-1) is installed on the described tooth bar (9).
8. O-ring seal endurance testing device according to claim 1 is characterized in that: described lining lid (3) outside is provided with the limiting section (3-1) that prevents that O-ring seal (17) from outwards skidding off, and limiting section (3-1) is clearance fit with rotating shaft (4) outer end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110083101A CN102221456B (en) | 2011-04-02 | 2011-04-02 | Sealing ring life test apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110083101A CN102221456B (en) | 2011-04-02 | 2011-04-02 | Sealing ring life test apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102221456A true CN102221456A (en) | 2011-10-19 |
| CN102221456B CN102221456B (en) | 2012-09-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110083101A Active CN102221456B (en) | 2011-04-02 | 2011-04-02 | Sealing ring life test apparatus |
Country Status (1)
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| CN (1) | CN102221456B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103411761A (en) * | 2013-04-18 | 2013-11-27 | 清华大学 | Testing experiment table for studying lip seal life |
| CN103481284A (en) * | 2013-09-24 | 2014-01-01 | 江苏云涌电子科技有限公司 | Manipulator |
| CN103837303A (en) * | 2014-03-25 | 2014-06-04 | 清华大学 | Micro-motion reciprocating seal dynamic characteristic experiment table |
| CN103954438A (en) * | 2014-02-28 | 2014-07-30 | 中国石油集团渤海钻探工程有限公司 | Testing device for frictional resistance of sealing ring under pressure state |
| CN104132805A (en) * | 2014-08-01 | 2014-11-05 | 清华大学 | Multifunctional pneumatic reciprocating sealing performance test bench |
| CN107655675A (en) * | 2017-10-30 | 2018-02-02 | 张旭 | A kind of combined type packing ring device for detecting performance |
| CN113218795A (en) * | 2021-05-06 | 2021-08-06 | 湘潭大学 | Lead-acid battery grid fatigue life simulation detection device and detection method |
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| CN201965021U (en) * | 2011-04-02 | 2011-09-07 | 瓯宝安防科技股份有限公司 | Testing device for service life of sealing ring |
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2011
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Patent Citations (7)
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| US5814717A (en) * | 1996-12-31 | 1998-09-29 | Dana Corporation | Oil seal tester |
| JP2007101356A (en) * | 2005-10-04 | 2007-04-19 | Nsk Ltd | Method of inspecting rolling bearing with sealing ring |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103411761A (en) * | 2013-04-18 | 2013-11-27 | 清华大学 | Testing experiment table for studying lip seal life |
| CN103481284A (en) * | 2013-09-24 | 2014-01-01 | 江苏云涌电子科技有限公司 | Manipulator |
| CN103481284B (en) * | 2013-09-24 | 2017-06-23 | 江苏云涌电子科技股份有限公司 | A kind of manipulator |
| CN103954438A (en) * | 2014-02-28 | 2014-07-30 | 中国石油集团渤海钻探工程有限公司 | Testing device for frictional resistance of sealing ring under pressure state |
| CN103954438B (en) * | 2014-02-28 | 2016-05-18 | 中国石油集团渤海钻探工程有限公司 | The testing arrangement of frictional resistance under sealing ring band pressure condition |
| CN103837303A (en) * | 2014-03-25 | 2014-06-04 | 清华大学 | Micro-motion reciprocating seal dynamic characteristic experiment table |
| CN103837303B (en) * | 2014-03-25 | 2016-03-30 | 清华大学 | A kind of fine motion reciprocation sealing dynamic characteristic experiment platform |
| CN104132805A (en) * | 2014-08-01 | 2014-11-05 | 清华大学 | Multifunctional pneumatic reciprocating sealing performance test bench |
| CN104132805B (en) * | 2014-08-01 | 2016-08-24 | 清华大学 | A kind of Multifunctional pneumatic power reciprocation sealing performance test stand |
| CN107655675A (en) * | 2017-10-30 | 2018-02-02 | 张旭 | A kind of combined type packing ring device for detecting performance |
| CN107655675B (en) * | 2017-10-30 | 2019-10-01 | 明光市雨睿电脑服务有限公司 | A kind of combined type packing ring device for detecting performance |
| CN113218795A (en) * | 2021-05-06 | 2021-08-06 | 湘潭大学 | Lead-acid battery grid fatigue life simulation detection device and detection method |
Also Published As
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| CN102221456B (en) | 2012-09-19 |
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Denomination of invention: Sealing ring life test device Effective date of registration: 20221020 Granted publication date: 20120919 Pledgee: Industrial Commercial Bank of China Ltd. Lishui Liandu branch Pledgor: Oubao Security Technology Co.,Ltd. Registration number: Y2022980019041 |
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