CN209181949U - Mechanical sealing linkage ring O-ring sliding friction force measuring device - Google Patents
Mechanical sealing linkage ring O-ring sliding friction force measuring device Download PDFInfo
- Publication number
- CN209181949U CN209181949U CN201920133966.0U CN201920133966U CN209181949U CN 209181949 U CN209181949 U CN 209181949U CN 201920133966 U CN201920133966 U CN 201920133966U CN 209181949 U CN209181949 U CN 209181949U
- Authority
- CN
- China
- Prior art keywords
- ring
- short axle
- seal chamber
- pressure sensor
- sliding friction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The utility model provides a kind of mechanical sealing linkage ring O-ring sliding friction force measuring device, it can reproduce actual condition substantially, being capable of O-ring force of sliding friction under Accurate Determining actual condition.It includes the short axle across capsule walls, the periphery that short axle protrudes into one end in seal chamber is cooperated by the sealing of the inner wall of O-ring and seal chamber, soft pad is arranged in short axle other end end outside seal chamber, has pressure sensor outside seal chamber, pressure sensor is with soft pad axially opposing；Seal chamber is communicated with compressed gas source；When compressed gas enters seal chamber, the force of sliding friction axial movement for pushing short axle to overcome O-ring to short axle, short axle is close on pressure sensor by soft pad, can detecte out the support reaction that pressure sensor generates short axle by pressure sensor.
Description
Technical field
The utility model relates to O-ring sliding friction force measuring devices, specifically, being that a kind of mechanical sealing linkage ring is O-shaped
Enclose sliding friction force measuring device.
Background technique
Mechanical seal is common sealing device, generally comprises stationary ring, the rotating ring of relative rotation, effect of the rotating ring in spring
Lower and stationary ring, which is in close contact, constitutes seal face.Rotating ring is made up of O-ring with rotating seat or main shaft in sealing contact simultaneously.
For rotating ring in moving process, rotating ring and O-ring can generate kinetic frictional resistances, influence the dynamic and static ring contact of mechanical seal
The contact mechanics characteristic at interface, so that the steady running to mechanical seal has an impact.Ma Chunhong has carried out air seal pressure
Under the conditions of fluororubber O-type ring frictional behavior experimental study, Li Shuanxi combines technique study using finite element modelling and test
Influence of the O shape auxiliary seal ring to mechanical seal leakage characteristic.But on the whole to the kinetic frictional resistances related experiment of O-ring
Study less, and influence of the specific environments such as the hardness of O-ring, compression ratio and lubricating condition to frictional force is very big, general to pass through
Formula is tested to be difficult accurately to calculate actual condition downslide kinetic force of friction.
Summary of the invention
The purpose of the utility model is to provide a kind of mechanical sealing linkage ring O-ring sliding friction force measuring devices, it can
It is basic to reproduce actual condition, it being capable of O-ring force of sliding friction under Accurate Determining actual condition.
Mechanical sealing linkage ring O-ring sliding friction force measuring device described in the utility model, including pass through capsule walls
Short axle, short axle protrudes into the periphery of one end in seal chamber and is cooperated by the sealing of the inner wall of O-ring and seal chamber, outside seal chamber
Short axle other end end soft pad is set, there is pressure sensor outside seal chamber, pressure sensor and soft pad are in axial direction
Relatively；Seal chamber is communicated with compressed gas source；When compressed gas enters seal chamber, promotion short axle overcomes O-ring to the cunning of short axle
Kinetic force of friction axial movement, short axle are close on pressure sensor by soft pad, be can detecte out and pressed by pressure sensor
The support reaction that force snesor generates short axle.
As the further improvement to above-mentioned mechanical sealing linkage ring O-ring sliding friction force measuring device, short axle with it is close
Sealing is clearance fit between cavity wall.
As the further improvement to above-mentioned mechanical sealing linkage ring O-ring sliding friction force measuring device, it further includes
For detecting the pressure gauge of compression pressure in seal chamber.
As the further improvement to above-mentioned mechanical sealing linkage ring O-ring sliding friction force measuring device, compressed gas
Source is communicated with air accumulator, and air accumulator is communicated with seal chamber.
The utility model has the beneficial effects that
When there is the gas of certain pressure medium in seal chamber, it is axial to pressure biography that short axle will act on lower edge in pressure medium
The movement of sensor direction, the O-ring between short axle and seal chamber will generate force of sliding frictionF f.According to pressure medium p and short axle
Face area s can calculate medium to the active force of short shaft end faceF 2.If the reading of pressure sensorF 1, thenF 2=F 1+F f,F f=
ps- F 1, that is, pass through the reading of pressure sensorF 1And pressure medium, O-ring force of sliding friction can be calculated.Rubber sheet gasket
Effect is that rigid contact occurs for short axle and pressure sensor in order to prevent, and fricton-tight frictional force is avoided to generate.
When changing different medium pressure, the O-ring force of sliding friction under different medium pressure can be obtained.
The utility model can to frictional resistance of the O-ring under different medium pressure at contact mechanical sealing linkage ring into
The accurate test of row.
Detailed description of the invention
Fig. 1 is mechanical sealing linkage ring O-ring force of sliding friction measuring device schematic diagram.
In figure, seal chamber 1, O-ring 2, air accumulator 3, short axle 4, rubber pad 5, pressure sensor 6, air compressor 7, pressure
Power table 8.
Specific embodiment
Mechanical sealing linkage ring O-ring sliding friction force measuring device shown in Figure 1, the short axle 4 that diameter is d pass through close
The cavity wall of chamber 1 is sealed, the periphery that short axle protrudes into one end in seal chamber is matched by O-ring 2 with diameter for the inner wall sealing of D seal chamber
It closes, rubber pad 5 is arranged in the short axle other end end outside seal chamber.There is pressure sensor 6, pressure sensing outside seal chamber
Device and rubber pad are axially opposing.Seal chamber is communicated by having valvular pipeline with air accumulator 3, air compressor 7 and gas storage
Tank 3 communicates；Pressure gauge 8 for detecting compression pressure in seal chamber is arranged in seal chamber.
When compressed air enters seal chamber, promotion short axle overcomes O-ring to move axially the force of sliding friction of short axle, short axle
It is close on pressure sensor by rubber pad, the branch that pressure sensor generates short axle be can detecte out by pressure sensor
Counter-force.
It is clearance fit between short axle and capsule walls.
Select nitrile rubber O-ring as sample, O-ring size are as follows: internal diameterϕ50×5.3mm；O-ring hardness H=80,
Minor axis diameterdForϕ50mm, seal chamber diameter of boreDForϕ59mm, then short axle and sealing cavity wall gap are 4.5mm.
O-ring decrement are as follows:
Of course, it is possible to change different minor axis diametersD andSeal chamber diameter of bore D, to the O-ring without size different
It is tested under decrement.
Pressure sensor selects JHBM-7 micro pressure sensor, and 0~1000N of measurement range, measurement accuracy 1N are selected simultaneously
With the XMT808-I sensor display instrument connected with pressure sensor value, real-time display goes out pressure value.
It is precise measurement seal chamber since the minor change of pressure medium can generate biggish end force in short shaft end face
Interior pressure medium selects the high-accuracy digital pressure gauge of model YD-100.
O-ring force of sliding friction test procedure
1) whether detecting instrument instrument works normally.
2) according to the device of mounting O-shaped rings friction testing shown in Fig. 1.
3) air of certain pressure is rushed to air accumulator by air compressor.
4) valve in opening air accumulator, the input air into O-ring friction testing device, after pressure gauge is stablized,
Read the data of pressure sensor.
5) first group of experiment is finished, the air pressure in air accumulator is increased by air compressor machine, to change pressure mediump, then
Secondary test is simultaneously recorded.
6) test result and data preparation are analyzed.
Claims (4)
1. mechanical sealing linkage ring O-ring sliding friction force measuring device, it is characterized in that: include the short axle across capsule walls, it is short
The periphery that axis protrudes into one end in seal chamber is cooperated by the sealing of the inner wall of O-ring and seal chamber, and the short axle outside seal chamber is another
Soft pad is arranged in one end end, has pressure sensor outside seal chamber, pressure sensor is with soft pad axially opposing；Sealing
Chamber is communicated with compressed gas source；When compressed gas enters seal chamber, promotion short axle overcomes O-ring to the force of sliding friction axis of short axle
To movement, short axle is close on pressure sensor by soft pad, can detecte out pressure sensor pair by pressure sensor
The support reaction that short axle generates.
2. mechanical sealing linkage ring O-ring sliding friction force measuring device as described in claim 1, it is characterized in that: short axle with it is close
Sealing is clearance fit between cavity wall.
3. mechanical sealing linkage ring O-ring sliding friction force measuring device as described in claim 1, it is characterized in that: further comprising
For detecting the pressure gauge of compression pressure in seal chamber.
4. mechanical sealing linkage ring O-ring sliding friction force measuring device as described in claim 1, it is characterized in that: compressed gas
Source is communicated with air accumulator, and air accumulator is communicated with seal chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920133966.0U CN209181949U (en) | 2019-01-26 | 2019-01-26 | Mechanical sealing linkage ring O-ring sliding friction force measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920133966.0U CN209181949U (en) | 2019-01-26 | 2019-01-26 | Mechanical sealing linkage ring O-ring sliding friction force measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209181949U true CN209181949U (en) | 2019-07-30 |
Family
ID=67378865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920133966.0U Expired - Fee Related CN209181949U (en) | 2019-01-26 | 2019-01-26 | Mechanical sealing linkage ring O-ring sliding friction force measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209181949U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110836848A (en) * | 2019-11-15 | 2020-02-25 | 眉山中车制动科技股份有限公司 | Method and device for detecting friction force of O-shaped sealing ring |
-
2019
- 2019-01-26 CN CN201920133966.0U patent/CN209181949U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110836848A (en) * | 2019-11-15 | 2020-02-25 | 眉山中车制动科技股份有限公司 | Method and device for detecting friction force of O-shaped sealing ring |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201748895U (en) | Device for measuring coaxiality and runout errors | |
| US7752993B2 (en) | Method and apparatus for a gauge for indicating a pressure of a fluid | |
| CN110631936B (en) | Quantitative evaluation test method for coal core damage | |
| CN209181949U (en) | Mechanical sealing linkage ring O-ring sliding friction force measuring device | |
| CN113108963B (en) | Dynamic testing device for circumferential radial elasticity of piston ring | |
| CN109186851B (en) | Multi-parameter differential pressure sensor | |
| CN114739563A (en) | Static ring movable mechanical seal radial membrane pressure distribution testing device | |
| CN105181280A (en) | Sealing ring radial elastic force measuring device | |
| CN107941405A (en) | Hydrostatic sensor and its bearing calibration | |
| CN205157113U (en) | Dynamic pressure sensor calibration equipment | |
| CN211291841U (en) | O-shaped ring sliding friction force measuring device | |
| JPH0611407A (en) | Apparatus for measuring flow rate and leaking amount of fluid in body under inspection | |
| CN107655428A (en) | A kind of flexible bearing inner diameter measurement fixture and its method of work | |
| CN105571536A (en) | Equipment for measuring volume deformation amount | |
| CN205014928U (en) | Elasticity sealing washer internal diameter precision measurement tapering dipperstick | |
| CN112729420B (en) | Non-full pipe flowmeter and installation and use method thereof | |
| CN204964098U (en) | Backpressure formula pressure sensor | |
| CN208653708U (en) | A kind of auxiliary balance device for piston gage calibrating | |
| CN113447214A (en) | Dynamic measuring device and method for leakage rate of sealed cavity | |
| CN107238340B (en) | Oil seal inner diameter detection device and method | |
| CN207300820U (en) | It is a kind of to be used to measure under rated differential head film to the system of specific gas leak rate | |
| KR101428773B1 (en) | Precision measurement enhanced differential pressure gauge | |
| CN218865672U (en) | Flange gasket compression resilience test testing machine | |
| CN219161580U (en) | Airtight detection jig | |
| CN220437689U (en) | Sealing performance detection device for sealing ring |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190730 Termination date: 20200126 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |