CN207623185U - A kind of shear viscosity instrument of high stability - Google Patents
A kind of shear viscosity instrument of high stability Download PDFInfo
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- CN207623185U CN207623185U CN201721629708.9U CN201721629708U CN207623185U CN 207623185 U CN207623185 U CN 207623185U CN 201721629708 U CN201721629708 U CN 201721629708U CN 207623185 U CN207623185 U CN 207623185U
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- ring
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- sealing ring
- sealing
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Abstract
The utility model provides a kind of shear viscosity instrument of high stability, including ontology, the ontology includes piston cylinder and piston body, and the piston body matches with piston cylinder, the piston body lower end is piston ring, and the piston ring is equipped with sealing ring card slot and guide ring card slot successively from the bottom up；Teflin ring is fitted in the sealing ring card slot, the sealing ring height is equal to the height of the sealing ring card slot on the piston ring, and when the sealing ring is filled to sealing ring card slot, the sealing ring protrudes 0.5 1mm of piston ring；Metalloid material guide ring is fitted in the guide ring card slot, the guiding ring thickness is equal to the depth of the guide ring card slot on the piston ring.The utility model greatly improves the crushing resistance and pressure stability when piston motion, the sealing effect of ultra-high shear viscosity apparatus is made to be improved significantly under high pressure, improve the stability of detection data by the improvement of setting guide ring combination sealing ring.
Description
Technical field
The utility model is related to viscosity apparatus technical field, more particularly to the shear viscosity instrument of a kind of high stability.
Background technology
The rheological characteristic of coating is extremely important for the coating of profession, to illustrate advanced professional coating process, it is necessary to
Understand the mobility of coating under actual shearing rate, ACAV (ultra-high shear viscosity apparatus) is most suitable research coating so far
Viscosimeter can detect fluid 0 to 107Viscosity under/s rates.Ultra-high shear viscosity apparatus is in the live ultra-high shear speed of simulation
When rate, the pressure (300-350bar) of superelevation is needed, and needs to stablize certain time, could accurately detect it in high shear speed
Viscosity under rate, and the pressure of this superelevation to entire leakproofness, crushing resistance and the piston ring of its piston ring to piston/cylinder
Lubricity has great requirement.Existing ultra-high shear viscosity apparatus is primarily present two big defects：(1) piston is labored to cylinder body
It can be in direct contact and rub with cylinder body when plug movement, cylinder body and piston rod is caused to be worn in the lower generation that works long hours, from
And cylinder body or piston ring is caused to damage, occur pressure anomaly when detecting, causes detection data fluctuation larger；(2) existing sealing
Circle design existing defects, sealing ring used at present first will produce deformation during encapsulation, after loading onto, often occur
Good sealing function can not be played, when detecting coating or other samples, it may appear that leakage phenomenon causes detection data different
Often；Furthermore intolerant to abrasion, the service life longest of each accessory is only 1 month for existing sealing ring design；Secondly, existing sealing
The lubricity of circle is poor, when in detection process as being mingled with the hard impurities in coating among accessory and piston cylinder, can cause pair
The damage of piston/cylinder, the scratch phenomenon that piston cylinder has many places at present therefore problem generates.The above situation is easy to cause piston
Sealing is gone wrong, material leakage when such as piston motion, relief valve nozzle spray, material leakage, and detection pressure oscillation is big etc., these problems cause
Direct result be exactly data fluctuation and inaccuracy, need repeatedly to carry out repetition measurement and confirm data, scene is caused to produce
No data can refer in journey, the problem in adjustment produced on-site that cannot be promptly and accurately.Therefore it is badly in need of the above-mentioned technology of solution and asks
Topic.
Invention content
Mirror is with this, and the utility model proposes a kind of shear viscosity instrument of high stability, when greatly improving piston motion
Crushing resistance and pressure stability, so that the sealing effect of ultra-high shear viscosity apparatus is improved significantly under high pressure, improve
The stability of detection data.
What the technical solution of the utility model was realized in：A kind of shear viscosity instrument of high stability, including ontology,
The ontology includes piston cylinder and piston body, and the piston body matches with piston cylinder, and the piston body lower end is piston ring,
The piston ring is equipped with sealing ring card slot and guide ring card slot successively from the bottom up；It is fitted with polytetrafluoro in the sealing ring card slot
Ethylene sealing ring, the sealing ring height are equal to the height of the sealing ring card slot on the piston ring, and the sealing ring is filled to
When sealing ring card slot, the sealing ring protrudes piston ring 0.5-1mm；Metalloid material guiding is fitted in the guide ring card slot
Ring, the guiding ring thickness are equal to the depth of the guide ring card slot on the piston ring.
Further, the guide ring height is smaller 0.1mm than the height of the guide ring card slot on the piston ring.
Further, the height of the guide ring card slot on the piston ring is 10.1mm.
Further, the depth of the guide ring card slot on the piston ring is 2mm.
Further, the height of the sealing ring card slot on the piston ring is 6mm.
Compared with prior art, the utility model has the beneficial effects that：
The utility model greatly improves crushing resistance when piston motion by the improvement of setting guide ring combination sealing ring
And pressure stability, making the sealing effect of ultra-high shear viscosity apparatus, (300bar or more) is improved significantly under high pressure, carries
The high stability of detection data.Wherein, the utility model by being arranged guide ring on the piston ring so that in piston motion
It can avoid piston by the adjusting of guide ring and be in direct contact and rub with cylinder body, so as to avoid cylinder body or piston ring
Damage.Using teflin ring, be arranged the sealing ring protrude piston ring 0.5-1mm, the protrusion when detecting,
Because it is with resilience, the more stable sealing effect of bigger can be played under stress, and resist fluids pressure is up to 380bar or more,
And the protrusion also can fill the cut that cylinder body itself has generated by pressure distortion, avoid Fluid pressure mistake when detecting
Large sample leaks out from cut, phenomena such as pressure kick occurs.The utility model is verified by many experiments, and detection result is
Significantly improved.The detection error of former ultra-high shear viscosity apparatus is in 15-25%, and the invention enables detection error controls
2% or so, reliable accurate data are provided for produced on-site, powerful data support is provided for the improvement of subsequent product.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of the shear viscosity instrument of high stability of the utility model；
Fig. 2 is the enlarged diagram of piston cylinder described in the utility model and piston body；
Fig. 3 is the side view and vertical view of sealing ring described in the utility model, wherein upper figure is side view, figure below is vertical view
Scheme, in figure, D is sealing ring outer diameter, and T is thickness of the sealing ring outer diameter to internal diameter, and W is sealing ring height；
Fig. 4 is the side view and vertical view of guide ring described in the utility model, wherein upper figure is side view, figure below is vertical view
Scheme, in figure, D is guide ring outer diameter, and T is thickness of the guide ring outer diameter to internal diameter, and W is guide ring height；
In figure：1. ontology, 2. piston bodies, 3. piston rings, 4. sealing ring card slots, 5. guide ring card slots；6. sealing ring, 7. are led
Xiang Huan, 8. piston cylinders.
Specific implementation mode
In order to be best understood from the utility model technology contents, specific embodiment is provided below, and in conjunction with attached drawing to this practicality
It is novel to be described further.
Referring to Fig. 1~4, a kind of shear viscosity instrument of high stability, including ontology 1, the ontology include 8 He of piston cylinder
Piston body 2, the piston body 2 match with piston cylinder 8, and 2 lower end of the piston body is piston ring 3, and the piston ring 3 is under
It is up equipped with sealing ring card slot 4 and guide ring card slot 5 successively.It is fitted with teflin ring in the sealing ring card slot 4
6, which has high abrasion, high-lubricity and high pressure resistance energy；6 height of the sealing ring is equal to the sealing ring card slot 4
Height on piston ring 3, in this embodiment, height W of the sealing ring card slot 4 on piston ring 3 are 6mm, i.e., such as Fig. 2 institutes
Show, the height W of sealing ring 6 is 6mm.When the sealing ring 6 is filled to sealing ring card slot 4, the sealing ring 6 protrudes piston ring 3
Thickness is 0.5-1mm, which when detecting, because it is with resilience, can play more stable close of bigger under stress
Effect is sealed, and resist fluids pressure is up to 380bar or more, and the protrusion can also pass through pressure distortion and fill cylinder body itself
The cut generated, avoid when detecting Fluid pressure cross large sample and leaked out from cut, there is phenomena such as pressure kick.It is described
Metalloid material guide ring 7 is fitted in guide ring card slot 5, the yielding easy rebound of the guide ring 7 is not easy to cause to grind to cylinder body
Damage, 7 thickness of the guide ring is equal to depth of the guide ring card slot 5 on piston ring 3, described in 7 height ratio of the guide ring
The small 0.1mm of height of the guide ring card slot 5 on piston ring 3.In this embodiment, height of the guide ring card slot 5 on piston ring 3
Degree is 10.1mm, i.e., as shown in figure 3,7 height W of guide ring is 10mm.In this embodiment, the guide ring card slot 5 is in piston ring 3
On depth be 2mm.The setting of the guide ring card slot 5 and guide ring 7 effectively avoids piston ring 3 from occurring directly with piston cylinder 8
Contact and friction, avoid the damage of piston cylinder 8 or piston ring 3.
ACAV is detected three times after being improved using former ACAV and application the utility model respectively identical coating, comparison
Result data fluctuates situation three times, and analysis result is as follows：
Interpretation of result：Former ACAV detects three groups of data fluctuations in 15.2-26.3%, and improved ACAV data fluctuations exist
1.5-3.3% shows that detection data fluctuation is smaller.
To sum up, the utility model is by being arranged the improvement of guide ring combination sealing ring, when greatly improving piston motion
Crushing resistance and pressure stability, making the sealing effect of ultra-high shear viscosity apparatus, (300bar or more) is significantly carried under high pressure
It rises, improves the stability of detection data.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection domain within.
Claims (5)
1. a kind of shear viscosity instrument of high stability, it is characterised in that：Including ontology, the ontology includes piston cylinder and piston
Body, the piston body match with piston cylinder, and the piston body lower end is piston ring, and the piston ring is set successively from the bottom up
There are sealing ring card slot and guide ring card slot；Teflin ring is fitted in the sealing ring card slot, the sealing ring is high
Degree is equal to the height of the sealing ring card slot on the piston ring, when the sealing ring is filled to sealing ring card slot, the sealing ring
Prominent piston ring 0.5-1mm；Metalloid material guide ring is fitted in the guide ring card slot, the guiding ring thickness is equal to institute
State the depth of guide ring card slot on the piston ring.
2. a kind of shear viscosity instrument of high stability according to claim 1, it is characterised in that：The guide ring height
It is smaller 0.1mm than the height of the guide ring card slot on the piston ring.
3. a kind of shear viscosity instrument of high stability according to claim 2, it is characterised in that：The guide ring card slot
Height on the piston ring is 10.1mm.
4. a kind of shear viscosity instrument of high stability according to claim 1, it is characterised in that：The guide ring card slot
Depth on the piston ring is 2mm.
5. a kind of shear viscosity instrument of high stability according to claim 1, it is characterised in that：The sealing ring card slot
Height on the piston ring is 6mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721629708.9U CN207623185U (en) | 2017-11-29 | 2017-11-29 | A kind of shear viscosity instrument of high stability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721629708.9U CN207623185U (en) | 2017-11-29 | 2017-11-29 | A kind of shear viscosity instrument of high stability |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207623185U true CN207623185U (en) | 2018-07-17 |
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ID=62824507
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721629708.9U Active CN207623185U (en) | 2017-11-29 | 2017-11-29 | A kind of shear viscosity instrument of high stability |
Country Status (1)
| Country | Link |
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| CN (1) | CN207623185U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116660099A (en) * | 2023-07-24 | 2023-08-29 | 绵阳新启科技有限公司 | Water-based paint fluidity detection system and method |
-
2017
- 2017-11-29 CN CN201721629708.9U patent/CN207623185U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116660099A (en) * | 2023-07-24 | 2023-08-29 | 绵阳新启科技有限公司 | Water-based paint fluidity detection system and method |
| CN116660099B (en) * | 2023-07-24 | 2023-10-31 | 绵阳新启科技有限公司 | Water-based paint fluidity detection system and method |
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