CN207798567U - A kind of airtight and watertight padding compression recovery performance experimental rig - Google Patents
A kind of airtight and watertight padding compression recovery performance experimental rig Download PDFInfo
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- CN207798567U CN207798567U CN201820069404.XU CN201820069404U CN207798567U CN 207798567 U CN207798567 U CN 207798567U CN 201820069404 U CN201820069404 U CN 201820069404U CN 207798567 U CN207798567 U CN 207798567U
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Abstract
The utility model is related to a kind of airtight and watertight padding compression recovery performance experimental rigs, including：Bottom plate, pillar, fixed top plate, it is sequentially connected 100kN load transducers, support plate, the hydraulic cylinder with hydraulic pump, hydraulic cylinder base below top plate, fixed frame is mounted on bottom plate, the upper and lower pressing plate of load bar and its upper and lower end, one displacement sensor being located on lower platen forms load transfer mechanism, is connected on fixed frame and below hydraulic cylinder base；Test fixture includes the mold core with housing being set on backing plate, is sleeved on the pressing sleeve on mold core top, two trim rings under pressing sleeve, the airtight and watertight padding placed between two trim rings；Test fixture is located at below load transfer mechanism；One computer data acquisition system is connected with 100kN load transducers and displacement sensor respectively.The utility model load is controllable and measurable, and measuring accuracy is high, can be by calculating airtight and watertight padding compression ratio and rebound degree automatically and drawing compression rebound curve.
Description
Technical field
The utility model is related to a kind of airtight and watertight padding compression recovery performance experimental rigs more particularly to a kind of comprehensive utilization to carry
A kind of examination of test filler compression recovery performance of the designs such as lotus loading device, test fixture, displacement sensor, computer software
Experiment device.
Background technology
Packing seal is to be formed by axial pressing force by tightening gland bolt, and filler is made to generate elastic-plastic deformation, from
And the radial compacting force for being adjacent to axis/valve rod is formed, to reduce the gap of filler and axis/valve rod, increase stream of the fluid along gap
Dynamic resistance.Compressibility refers to the knots modification of depth of packing after initial compression, characterizes the size of filler flexibility, filler compressibility
It is better, i.e., it is more easily deformed, is conducive to fill up leakage gap and reach sealing purpose.Resilience is filler in compressive load removal
Afterwards, the recovery capacity of filler, because of filler elasticity when sealing surface is caused to detach for pressure medium or other reasons when it characterizes operation
The ability of compensation is to maintain the principal element of working seal.Therefore, the compression recovery performance of filler is characterization Reliability of Packing Seal
A principal element, and evaluation airtight and watertight padding quality good or not a main technical standards.Country of the People's Republic of China (PRC)
In the patent document for disclosing Publication No. CN106018494A on October 12nd, 2016, title is compression and back for Department of Intellectual Property
Play test equipment.It is adjusted by jig, lower test electrode, upper test electrode, pressure sensor, jig driving mechanism, thickness
Device, touch display screen and controller composition.This test equipment can only test board-like material, can not achieve the compression to airtight and watertight padding
Rebound test.And need to apply load manually in the course of work, data are manually read, measuring accuracy is influenced, are calculated
Test result has certain error, intelligence, the degree of automation not high.
Invention content
The purpose of this utility model is to provide a kind of improved airtight and watertight padding compression recovery performance test device, by special
Installation form of the test fixture simulation filler of design in sealing device, in conjunction with load charger, computer testing software
Deng the automatic compression recovery performance for testing airtight and watertight padding.Experimental rig can be molded and compile to soft graphite, PTFE, aramid fiber etc.
The experimental study that filler carries out standard compression resilience performance test and compression recovery performance is knitted, it is simple in structure, easy to use, no
It needs specially to safeguard, avoids the heavy complexity of equipment, operating difficulties, and measuring accuracy and reach domestic and international similar advanced level.
Technical solution is as follows used by the utility model solves its technical problem：
A kind of airtight and watertight padding compression recovery performance experimental rig, which is characterized in that the device includes：Four pillars 17
It is fixed on bottom plate 18, top plate 1 is fixed in 17 upper end of pillar, and 1 lower section of top plate is sequentially connected 100kN load transducers 2, support plate
4, the hydraulic cylinder 5 with hydraulic pump 20, hydraulic cylinder base 6, a fixed frame 19 are mounted on bottom plate 18, a load transmission machine
Structure is set to 6 lower section of hydraulic cylinder base by fixed frame 19, and test fixture is fixed on bottom plate 18 by backing plate 16 and positioned at load
Below lotus transmission mechanism；The load transfer mechanism includes the top board 7 and lower platen 10 of load bar 8 and its upper and lower end,
One displacement sensor 9, which is connected on fixed frame 19, to be located on lower platen 10；The test fixture includes being set to backing plate 16
On the mold core 11 with housing 13, be equipped between mold core 11 and housing 13 and be sleeved on the pressing sleeve 12, Yi Jiwei on 11 top of mold core
Two trim rings 14 under pressing sleeve 12, airtight and watertight padding 15 are placed between two trim rings 14；The top board 7 of test fixture is located at
The underface of hydraulic cylinder base 6；One computer data acquisition system 3 respectively with 100kN load transducers 2 and displacement sensing
Device 9 is connected.
The displacement sensor 9 is arranged on fixed frame and perpendicular to lower platen 10, telescopic rod bottom and lower platen
10 contacts.
The beneficial effects of the utility model are as follows：
(1) test fixture of pressure ring and housing composition, can simulate installation form of the filler in sealing device and
The pressure that airtight and watertight padding is subject to is uniform.
(2) combination of hydraulic cylinder, hydraulic pump and load transducer so that loading procedure is easy to operate, and load is controllable and measurable.
(3) by installing high-precision displacement sensor on lower platen so that the test device can be measured accurately and be filled out
The decrement of material, springback capacity, measuring accuracy reach domestic and international similar advanced level.
(4) automatic to calculate airtight and watertight padding pressure after computer acquisition displacement sensor is tested filler decrement and springback capacity
Shrinkage and rebound degree simultaneously draw compression-rebound curve, complete to detect the compression recovery performance of airtight and watertight padding.
Description of the drawings
Fig. 1 is apparatus structure schematic diagram
Wherein：1, top plate；2,100kN load transducers；3, computer；4, support plate；5, hydraulic cylinder；6, cylinder bottom
Seat；7, top board；8, load bar；9, displacement sensor；10, lower platen；11, mold core；12, pressing sleeve；13, housing；14, trim ring；
15, airtight and watertight padding；16, backing plate；17, pillar；18, bottom plate；19, fixed frame；20, hydraulic pump.
Fig. 2 is test fixture sectional view
Wherein:11, mold core；12, pressing sleeve；13, housing；14, trim ring；15, airtight and watertight padding.
Fig. 3 (A) is displacement sensor fixed frame vertical view,
Fig. 3 (B) is displacement sensor fixed frame side view.
Fig. 4 (A) is vertical view on top board, wherein 7, top board.
Fig. 4 (B) is load bar side view, wherein 8, load bar.
Fig. 4 (C) is lower platen vertical view, wherein 10, lower platen.
Specific implementation mode
The utility model is further elaborated below by specific implementation mode：
Suitable testing standard is selected according to test material (test requirements document), determines and selects test fixture size, calculates institute
Need magnitude of load.The sample (or airtight and watertight padding) of interception certain length is required according to relevant criterion, sample or airtight and watertight padding is tight
Close circular mold core 11 1 weeks, junction are cut into 45° angle with blade and are repeatedly connect, coincide.Sample benchmark is fitted into up in test specimen mould,
Compression ring 14, upper pressure cuffs 12, is placed between the pressure head of testing machine and pedestal.Click on-test and in the time as short as possible
It is interior that experiment is loaded onto by full payload by hydraulic pump 20 and maintains load, test process is observed, maintains test load to stablize, waits for boundary
Face prompt test period be offloaded to preloading when up to standard, and computer 3 ends automatically experiment and calculates corresponding test result.Examination
Testing report will display：The rebound degree and filler of the test decrement of filler, the springback capacity of filler, the compression ratio of filler, filler
Compression-rebound curve.
Displacement sensor 9 is arranged on fixed frame and perpendicular to lower platen 10, and telescopic rod bottom is contacted with lower platen 10,
The micro-displacement of airtight and watertight padding compression rebound can be thus measured, and real-time curve is obtained by computer system.Hydraulic cylinder
5, the combination of hydraulic pump 20 and 100kN load transducers 2 so that loading procedure is simple and convenient, and load is controllable and measurable.Operation
Platform is by the switch, pressure regulator valve and relief valve of oil cylinder, and the computer processing system of each sensor data acquisition is all assembled in
On one platform, ensures to complete whole test process on the same operation panel, make operation automation, intelligence.
Claims (2)
1. a kind of airtight and watertight padding compression recovery performance experimental rig, which is characterized in that the device includes：Four pillars (17)
It is fixed on bottom plate (18), top plate (1) is fixed in pillar (17) upper end, and 100kN load transducers are sequentially connected below top plate (1)
(2), support plate (4), hydraulic cylinder (5), hydraulic cylinder base (6) with hydraulic pump (20), a fixed frame (19) are mounted on bottom
On plate (18), a load transfer mechanism is set to by fixed frame (19) below hydraulic cylinder base (6), and test fixture passes through pad
Plate (16) is fixed on bottom plate (18) and below load transfer mechanism；The load transfer mechanism includes load bar (8)
And its top board (7) and lower platen (10) of upper and lower end, a displacement sensor (9) is connected to be located on fixed frame (19) under
On pressing plate (10)；The test fixture includes the mold core (11) with housing (13) being set on backing plate (16), mold core
(11) pressing sleeve (12) for being sleeved on mold core (11) top, and two under pressing sleeve (12) are equipped between housing (13)
Trim ring (14), airtight and watertight padding (15) are placed between two trim rings (14)；The top board (7) of test fixture is located at hydraulic cylinder base
(6) underface；One computer data acquisition system (3) respectively with 100kN load transducers (2) and displacement sensor (9)
It is connected.
2. a kind of airtight and watertight padding compression recovery performance experimental rig as described in claim 1, which is characterized in that the displacement
Sensor (9) is arranged on fixed frame and perpendicular to lower platen (10), and telescopic rod bottom is contacted with lower platen (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820069404.XU CN207798567U (en) | 2018-01-16 | 2018-01-16 | A kind of airtight and watertight padding compression recovery performance experimental rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820069404.XU CN207798567U (en) | 2018-01-16 | 2018-01-16 | A kind of airtight and watertight padding compression recovery performance experimental rig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207798567U true CN207798567U (en) | 2018-08-31 |
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| CN201820069404.XU Active CN207798567U (en) | 2018-01-16 | 2018-01-16 | A kind of airtight and watertight padding compression recovery performance experimental rig |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2720208C1 (en) * | 2019-07-15 | 2020-04-28 | федеральное государственное автономное образовательное учреждение высшего образования "Казанский (Приволжский) федеральный университет" (ФГАОУ ВО КФУ) | Cylindrical core seal and method of sealing assembly in core holder |
| CN112254895A (en) * | 2020-09-08 | 2021-01-22 | 合肥通用机械研究院有限公司 | Performance test device and test method for packing sealing system for straight stroke valve rod |
| CN115420438A (en) * | 2022-08-05 | 2022-12-02 | 中广核工程有限公司 | Modularized static seal test detection device |
| CN117007416A (en) * | 2023-09-21 | 2023-11-07 | 常州市建筑材料研究所有限公司 | Safe cement pressure testing machine |
-
2018
- 2018-01-16 CN CN201820069404.XU patent/CN207798567U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2720208C1 (en) * | 2019-07-15 | 2020-04-28 | федеральное государственное автономное образовательное учреждение высшего образования "Казанский (Приволжский) федеральный университет" (ФГАОУ ВО КФУ) | Cylindrical core seal and method of sealing assembly in core holder |
| CN112254895A (en) * | 2020-09-08 | 2021-01-22 | 合肥通用机械研究院有限公司 | Performance test device and test method for packing sealing system for straight stroke valve rod |
| CN112254895B (en) * | 2020-09-08 | 2023-12-05 | 合肥通用机械研究院有限公司 | Performance test device and test method for packing sealing system for straight Cheng Fagan |
| CN115420438A (en) * | 2022-08-05 | 2022-12-02 | 中广核工程有限公司 | Modularized static seal test detection device |
| CN117007416A (en) * | 2023-09-21 | 2023-11-07 | 常州市建筑材料研究所有限公司 | Safe cement pressure testing machine |
| CN117007416B (en) * | 2023-09-21 | 2023-12-08 | 常州市建筑材料研究所有限公司 | Safe cement pressure testing machine |
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