CN206862416U - A kind of fine liquid flowmeter - Google Patents
A kind of fine liquid flowmeter Download PDFInfo
- Publication number
- CN206862416U CN206862416U CN201720539691.1U CN201720539691U CN206862416U CN 206862416 U CN206862416 U CN 206862416U CN 201720539691 U CN201720539691 U CN 201720539691U CN 206862416 U CN206862416 U CN 206862416U
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- CN
- China
- Prior art keywords
- fluid
- testing gears
- fine liquid
- cavity
- test
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- 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.)
- Withdrawn - After Issue
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Abstract
The utility model provides a kind of fine liquid flowmeter, existing fine liquid flowmeter is which solved in test, the rotation direction of testing gears can be very unstable, intermeshing testing gears can form the frequent rotation of positive and negative both direction, the rotation direction of testing gears can be very unstable, testing gears, which form quiet rum, needs a period of time, such impact can influence measuring accuracy, also the life-span of testing gears can be reduced, the technical problem in the life-span of gear shaft and bearing can be also influenceed simultaneously, it is provided with shell, enclosure is provided with fluid test cavity, fluid test cavity side is provided with fluid intake, fluid test cavity opposite side is provided with fluid issuing, fluid test inside cavity is provided with a pair of intermeshing testing gears, divided fluid stream entrance is provided between fluid intake and fluid test cavity.The utility model can be widely applied to the flow rate test of fine liquid.
Description
Technical field
A kind of flowmeter is the utility model is related to, more particularly to a kind of fine liquid flowmeter.
Background technology
It is known that fine liquid flowmeter is provided with shell, enclosure is provided with fluid test cavity, fluid test cavity
Side is provided with fluid intake, and fluid test cavity opposite side is provided with fluid issuing, and fluid test inside cavity is mutual provided with a pair
Meshed gears, during this fine liquid flowmeter detection fine liquid flow, when fluid enters fluid test inside cavity, push away
The pitch wheel of dynamic fluid test inside cavity is rotated, and linear sealing, tooth are formed between the gear teeth of pitch wheel
The gear teeth excircle of wheel also forms linear sealing with fluid test cavity inner wall, and fluid can be measured by the revolution of testing gears
Flow.
Existing fine liquid flowmeter is in test, as shown in figure 1, entering fluid test cavity 3 by fluid intake 6
Fluid can to test cavity 3 inside intermeshing testing gears 4 formed impact, fluid by the straight line of fluid intake 6 punching
Hit on testing gears 4, when impact moment, the impact force direction that testing gears 4 are subject to disperses, between two gear teeth in backlash
Fluid can to adjacent two gear teeth simultaneously act power, cause the rotation direction of testing gears 4 can be very unstable, be intermeshed
Testing gears 4 can form frequent impact and the rotation of positive and negative both direction, when testing gears 4 form quiet rum and need one section
Between, such impact can influence measuring accuracy, can also reduce the life-span of testing gears 4, while can also influence testing gears main shaft 5
With the life-span of bearing.
The content of the invention
The utility model is exactly to solve existing fine liquid flowmeter in test, enter to become a mandarin by fluid intake
The fluid of body examination examination cavity can form impact to the intermeshing testing gears for testing inside cavity, and fluid passes through fluid intake
Straight line shock is on testing gears, and when impact moment, the impact force direction that testing gears are subject to disperses, the operating side of testing gears
Very unstable to meeting, intermeshing testing gears can form the frequent rotation of positive and negative both direction, the operating side of testing gears
Very unstable to meeting, testing gears, which form quiet rum, needs a period of time, and such impact can influence measuring accuracy, can also drop
The life-span of low testing gears, while can also influence the technical problem in the life-span of gear shaft and bearing, there is provided a kind of fine liquid stream
For gauge in test, the fluid that fluid test cavity is entered by fluid intake will not be to the intermeshing of test inside cavity
Testing gears form impact, and fluid will not be directly impinging on testing gears by fluid intake straight line, what testing gears were subject to
Force direction stabilization is impacted, the rotation direction of testing gears is stable, and intermeshing testing gears will not form positive and negative both direction
Frequent rotation, testing gears can form quiet rum at once, not interfere with measuring accuracy, will not reduce the testing gears longevity
Life, while do not interfere with the fine liquid flowmeter in the life-span of gear shaft and bearing yet.
The technical scheme that the utility model solves above-mentioned technical problem is a kind of fine liquid flowmeter, and it is provided with shell,
Enclosure is provided with fluid test cavity, and fluid test cavity side is provided with fluid intake, and fluid test cavity opposite side is provided with
Fluid issuing, fluid test inside cavity are provided with a pair of intermeshing testing gears, fluid intake and fluid test cavity it
Between be provided with divided fluid stream entrance.
Preferably, the divided fluid stream entrance being provided between fluid intake and fluid test cavity is two-way, and two-way fluid divides
Inflow entrance is to be arranged symmetrically relative to fluid intake axis.
Preferably, testing gears use normal shift involute cylindrical gear.
Preferably, the normal shift coefficient of involute cylindrical gear is 0.05-0.15.
Preferably, the normal shift coefficient of involute cylindrical gear is 0.1.
Preferably, testing gears material is PEEK.
The utility model beneficial effect is that, due to a kind of fine liquid flowmeter, it is provided with shell, and enclosure is provided with stream
Body examination tries cavity, and fluid test cavity side is provided with fluid intake, and fluid test cavity opposite side is provided with fluid issuing, and fluid is surveyed
Examination inside cavity is provided with a pair of pitch wheels, and divided fluid stream entrance is provided between fluid intake and fluid test cavity,
During test, the fluid that fluid test cavity is entered by fluid intake will not be to the intermeshing test tooth of test inside cavity
Wheel forms impact, and fluid will not be directly impinging on testing gears by fluid intake straight line, the impulsive force that testing gears are subject to
Direction is stable, and the rotation direction of testing gears is stable, and intermeshing testing gears will not form the frequent of positive and negative both direction
Rotate, testing gears can form quiet rum at once, not interfere with measuring accuracy, will not reduce the life-span of testing gears, together
When do not interfere with life-span of gear shaft and bearing yet.
Brief description of the drawings
Fig. 1 is the structural representation of existing fine liquid flowmeter；
Fig. 2 is the utility model embodiment outline drawing；
Fig. 3 is the utility model embodiment structural representation.
Symbol description in figure：
1. fluid issuing；2. shell；3. fluid test cavity；4. testing gears；5. main gear shaft；6. fluid intake；7.
Divided fluid stream entrance.
Embodiment
The utility model is described further with reference to embodiment.
Fig. 2-3 is the utility model embodiment, and Fig. 2 is the utility model embodiment outline drawing, it can be seen from the figure that fluid
The bottom of entrance 6 is provided with two divided fluid stream entrances 7.
Fig. 3 is the utility model embodiment sectional view, and it can be seen from the figure that, a kind of fine liquid flowmeter, it is provided with outer
Shell 2, the inside of shell 2 are provided with fluid test cavity 3, and the side of fluid test cavity 3 is provided with fluid intake 6, and fluid test cavity 3 is another
Side is provided with fluid issuing 1, and the inside of fluid test cavity 3 is provided with a pair of intermeshing testing gears 4, fluid intake 6 and stream
Divided fluid stream entrance 7 is provided between body examination examination cavity 3, the divided fluid stream being provided between fluid intake 6 and fluid test cavity 3 enters
Mouth 7 is two-way, and two-way divided fluid stream entrance 7 is to be arranged symmetrically relative to the axis of fluid intake 7.When test fluid enters by fluid
When mouth 6 enters fluid test cavity 3, due to being provided with divided fluid stream entrance 7, fluid between fluid intake 6 and fluid test cavity 3
Shunting can be formed, is respectively enterd inside left and right divided fluid stream entrance 7, the fluid by shunting can drive 4 turns of testing gears respectively
Dynamic, the problem of being not in impulsive force disorder, the testing gears 4 meshed together can smoothly start, and proceed by fluid
Flow rate test, this structure provided with divided fluid stream entrance 7 is particularly suitable for the flow rate test of fine liquid.Simultaneously because phase
The impulsive force that the testing gears 4 mutually engaged are subject to is steady, and the impulsive force of main gear shaft 5 and bearing is small, long lifespan.The embodiment
The axis of middle divided fluid stream entrance 7 intersects with main gear shaft 5, so when fluid enters fluid by divided fluid stream entrance 7
When testing in cavity 3, the stress of testing gears 4 can be evenly steady.
Testing gears 4 in the embodiment use normal shift involute cylindrical gear, after normal shift coefficient, test tooth
The gear teeth tooth height of wheel 4 can increase, and be more beneficial for taking turns the linear engagement of between cog, and the linear range of its intermeshing motion is longer, surveys
Examination is more accurate, more preferable for the flow rate test linearity of fine liquid, by experimental analysis, the positive change of involute cylindrical gear 4
Potential coefficient is 0.05-0.15, can improve the precision of test, especially when normal shift coefficient selects 0.1, for carrying
The effect of high measuring accuracy is clearly.
The material selection PEEK of testing gears 4 of the embodiment, traditional handicraft are used as test using Stainless steel 316 L mostly
The material of gear 4,316L has good rotproofness to a variety of media although cheap, but its shortcoming is heavier-weight,
It is unfavorable for the rapid startup of flowmeter, is not particularly suitable for testing the flow of fine liquid, while stainless steel material hardness is high, is not easy
Processing, testing gears 4 material selection PEEK is in light weight, can start test, while PEEK materials at once during testing flow meter fluid
Material is also corrosion-resistant, easily realizes processing.
Only as described above, only specific embodiment of the utility model, when the utility model can not be limited with this
The scope of implementation, therefore the displacement of its equivalent assemblies, or the equivalent variations made according to the utility model patent protection domain and modification,
It all should still belong to the category that the utility model claims book is covered.
Claims (6)
1. a kind of fine liquid flowmeter, it is provided with shell, and the enclosure is provided with fluid test cavity, the fluid test
Cavity side is provided with fluid intake, and the fluid test cavity opposite side is provided with fluid issuing, the fluid test inside cavity
Provided with a pair of intermeshing testing gears, it is characterized in that being provided with divided fluid stream between the fluid intake and fluid test cavity
Entrance.
2. fine liquid flowmeter according to claim 1, it is characterised in that the fluid intake and fluid test cavity
Between the divided fluid stream entrance that is provided be two-way, the two-way divided fluid stream entrance is symmetrical cloth relative to fluid intake axis
Put.
3. fine liquid flowmeter according to claim 1, it is characterised in that the testing gears are gradually opened using normal shift
Line roller gear.
4. fine liquid flowmeter according to claim 3, it is characterised in that the normal shift of the involute cylindrical gear
Coefficient is 0.05-0.15.
5. fine liquid flowmeter according to claim 4, it is characterised in that the normal shift of the involute cylindrical gear
Coefficient is 0.1.
6. fine liquid flowmeter according to claim 3, it is characterised in that the testing gears material is PEEK.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720539691.1U CN206862416U (en) | 2017-05-16 | 2017-05-16 | A kind of fine liquid flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720539691.1U CN206862416U (en) | 2017-05-16 | 2017-05-16 | A kind of fine liquid flowmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206862416U true CN206862416U (en) | 2018-01-09 |
Family
ID=60822558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720539691.1U Withdrawn - After Issue CN206862416U (en) | 2017-05-16 | 2017-05-16 | A kind of fine liquid flowmeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206862416U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107044872A (en) * | 2017-05-16 | 2017-08-15 | 威海坤科流量仪表有限公司 | Fine liquid flowmeter |
-
2017
- 2017-05-16 CN CN201720539691.1U patent/CN206862416U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107044872A (en) * | 2017-05-16 | 2017-08-15 | 威海坤科流量仪表有限公司 | Fine liquid flowmeter |
| CN107044872B (en) * | 2017-05-16 | 2023-09-05 | 威海坤科流量仪表股份有限公司 | Micro liquid flowmeter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180109 Effective date of abandoning: 20230905 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20180109 Effective date of abandoning: 20230905 |