CN203274814U - Assembly structure of soft water valve flow rate meter impeller - Google Patents
Assembly structure of soft water valve flow rate meter impeller Download PDFInfo
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- CN203274814U CN203274814U CN 201320332603 CN201320332603U CN203274814U CN 203274814 U CN203274814 U CN 203274814U CN 201320332603 CN201320332603 CN 201320332603 CN 201320332603 U CN201320332603 U CN 201320332603U CN 203274814 U CN203274814 U CN 203274814U
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Abstract
The utility model discloses an assembly structure of a soft water valve flow rate meter impeller. The assembly structure comprises an upper fixed plate, a flow rate meter impeller and a top shaft, wherein a step hole which is matched with a middle shaft of the flow rate meter impeller is formed in the upper fixed plate; a step hole is also formed in an inner cavity of the middle shaft of the flow rate meter impeller; point contact is formed between the top end of the middle shaft of the flow rate meter impeller and a jewelry bearing on the upper fixed plate; point contact is also formed between the top shaft on the lower side and the jewelry bearing in the inner cavity of the middle shaft of the flow rate meter impeller, so that the positioning of the flow rate meter impeller is realized; meanwhile, contact surfaces are point contact modes and the material surface is smooth, so that the friction resistance during the rotation of the flow rate meter impeller is enabled to be small; and when small flow passes through, the flow rate meter impeller also rotates, so that the flow rate meter is accurate in calculation and the precision is improved.
Description
Technical field
The utility model relates to the flowmeter impeller on the soft water valve, especially a kind of assembly structure of soft water valve flowmeter impeller.
Background technology
On the water disposal facility such as soft water valve, usually be equipped with flowmeter, in flowmeter, one of element of most critical is the flowmeter impeller, when current process impeller, promote the blade rotation on impeller, impeller passes to miscellaneous part with rotation again, by the size of the number of turns calculated flow rate that rotates.In order to guarantee the accuracy of measuring flow, the matching requirements of impeller are very high, should guarantee that impeller location fixes, and the frictional resistance when again it being rotated drops to minimum, in order to avoid the number of turns of rotating can not correctly reflect flow.Assembly structure in the past is that direct axis with impeller inserts in the corresponding hole of two fixed heads in up and down, axis and interporal lacuna coordinate, such assembly structure friction force is larger, when having low discharge to flow through, the flowmeter impeller may not rotate, therefore flow that can't the Measurement accuracy water outlet, measuring error is up to 3% left and right, and measuring accuracy is also lower.
Summary of the invention
The technical matters that solves: for the deficiencies in the prior art, the utility model provides a kind of assembly structure of soft water valve flowmeter impeller, solves the technical matters that flowmeter impeller assembling friction force is large, the flow measurement error is high.
Technical scheme: for solving the problems of the technologies described above, the utility model by the following technical solutions:
a kind of assembly structure of soft water valve flowmeter impeller, comprise upper mounted plate, flowmeter impeller and apical axis, the profile of the axis of described flowmeter impeller is stepped ramp type, be followed successively by from top to bottom top, first step and the second step of coaxial setting, described top be an elongated cylinder, and the cylinder top is the arcuation pinnacle, and the diameter of described first step is less than the diameter of second step, the inner chamber of described flowmeter impeller is downward opening single order stepped ramp type lower fixed hole, described lower fixed hole is followed successively by the first lower fixed hole and the second lower fixed hole from top to bottom, the diameter of described the first lower fixed hole is less than the diameter of the second lower fixed hole, a coaxial lining is set on the shaft shoulder between described the first lower fixed hole and the second lower fixed hole, described lining and the second lower fixed hole interference fit, the inner chamber of described lining is a coaxial lining blind hole that Open Side Down, a jewel bearing is set in described lining blind hole, described jewel bearing and lining blind hole interference fit, and the end face of jewel bearing is circular arc, described top diameter is less than the diameter of lining blind hole, on the described top end face that withstands on jewel bearing, offer fixed orifice on the single order stepped ramp type that the first step with the impeller axis is complementary on the fixed plate, the fixed hole is followed successively by on first fixed orifice on fixed orifice and second from top to bottom, on described first, the diameter of fixed orifice is identical with the first lower fixed hole, on described second, the diameter of fixed orifice is identical with the second lower fixed hole, on the shaft shoulder between fixed orifice, one group of lining identical with lower fixed hole and jewel bearing is set on fixed orifice and second on described first, described apical axis is an elongate rod, and the apical axis lower end fixes, and the diameter of described apical axis is less than the diameter of lining blind hole, and an end of described apical axis is arc pinnacle shape, withstands on the end face of the jewel bearing in lower fixed hole.
Further, in the utility model, on described first step and second, fixed orifice is clearance fit.Reduce the friction force in the wheel rotation process.
Further, in the utility model, the material of described jewel bearing is corundum.Smooth surface, frictional resistance is little, and has wearing quality preferably.
Beneficial effect: the utility model withstands on the circular arc end face of two groups of jewel bearings by pinnacle shape end face top, apical axis respectively, realize the location of flowmeter impeller, simultaneously surface of contact be a contact and material surface smooth, frictional resistance when having guaranteed the flowmeter wheel rotation is little, when low discharge flows through, the flowmeter impeller also can rotate, and flowmeter is calculated accurately, and precision improves simultaneously.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
a kind of assembly structure of soft water valve flowmeter impeller, comprise upper mounted plate 1, flowmeter impeller 2 and apical axis 3, the profile of the axis of described flowmeter impeller 2 is stepped ramp type, be followed successively by from top to bottom top 4, first step 5 and the second step 6 of coaxial setting, described top 4 is an elongated cylinder, and the cylinder top is the arcuation pinnacle, and the diameter of described first step 5 is less than the diameter of second step 6, the inner chamber of described flowmeter impeller 2 is downward opening single order stepped ramp type lower fixed hole, described lower fixed hole is followed successively by the first lower fixed hole 10 and the second lower fixed hole 11 from top to bottom, the diameter of described the first lower fixed hole 10 is less than the diameter of the second lower fixed hole 11, on the shaft shoulder between described the first lower fixed hole 10 and the second lower fixed hole 11, a coaxial lining 9 is set, described lining 9 and the second lower fixed hole 11 interference fit, the inner chamber of described lining 9 is a coaxial lining blind hole 13 that Open Side Down, described lining blind hole 13 is interior arranges a jewel bearing 12, the material of described jewel bearing 12 is corundum, smooth surface, frictional resistance is little, and has wearing quality preferably, described jewel bearing 12 and lining blind hole 13 interference fit, and the end face of jewel bearing 12 is circular arc, described top 4 diameter is less than the diameter of lining blind hole 13, described top 4 withstand on the end face of jewel bearing 12,
Offer fixed orifice on the single order stepped ramp type that the first step 5 with impeller 2 axis is complementary on fixed plate 1, the fixed hole is followed successively by on first fixed orifice 8 on fixed orifice 7 and second from top to bottom, on described first, the diameter of fixed orifice 7 is identical with the first lower fixed hole 10, on described second, the diameter of fixed orifice 8 is identical with the second lower fixed hole 11, on described first step 5 and second, fixed orifice 8 is clearance fit, reduces the friction force in the wheel rotation process; One group of lining identical with lower fixed hole 9 and jewel bearing 12 are set on the shaft shoulder between fixed orifice 8 on fixed orifice 7 and second on described first;
Described apical axis 3 is an elongate rod, and apical axis 3 lower ends fix, and the diameter of described apical axis 3 is less than the diameter of lining blind hole 13, and an end of described apical axis 3 is arc pinnacle shape, withstands on the end face of the jewel bearing 12 in lower fixed hole.
During work, pinnacle shape end face top, apical axis withstands on the circular arc end face of two groups of jewel bearings, realize the location of flowmeter impeller, simultaneously surface of contact be a contact and material surface smooth, the frictional resistance when having guaranteed the flowmeter wheel rotation is little, when low discharge flows through, the flowmeter impeller also can rotate, flowmeter is calculated accurately, and the flow measurement error is reduced to 0.5%, and measuring accuracy is corresponding improve also.
The above is only preferred implementation of the present utility model; be noted that for those skilled in the art; under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (3)
1. the assembly structure of a soft water valve flowmeter impeller, it is characterized in that: comprise upper mounted plate (1), flowmeter impeller (2) and apical axis (3), the profile of the axis of described flowmeter impeller (2) is stepped ramp type, be followed successively by from top to bottom top (4), first step (5) and the second step (6) of coaxial setting, described top (4) are an elongated cylinder, and the cylinder top is the arcuation pinnacle, and the diameter of described first step (5) is less than the diameter of second step (6), the inner chamber of described impeller is downward opening single order stepped ramp type lower fixed hole, described lower fixed hole is followed successively by the first lower fixed hole (10) and the second lower fixed hole (11) from top to bottom, the diameter of described the first lower fixed hole (10) is less than the diameter of the second lower fixed hole (11), on the shaft shoulder between described the first lower fixed hole (10) and the second lower fixed hole (11), a coaxial lining (9) is set, described lining (9) and the second lower fixed hole (11) interference fit, the inner chamber of described lining (9) is a coaxial lining blind hole (13) that Open Side Down, a jewel bearing (12) is set in described lining blind hole (13), described jewel bearing (12) and lining blind hole (13) interference fit, and the end face of jewel bearing (12) is circular arc, the diameter of described top (4) is less than the diameter of lining blind hole (13), described top (4) withstand on the end face of jewel bearing (12), offer fixed orifice on the single order stepped ramp type that the first step (5) with impeller (2) axis is complementary on fixed plate (1), the fixed hole is followed successively by fixed orifice (8) on fixed orifice on first (7) and second from top to bottom, the diameter of fixed orifice on described first (7) is identical with the first lower fixed hole (10), the diameter of fixed orifice on described second (8) is identical with the second lower fixed hole (11), one group of lining identical with lower fixed hole (9) and jewel bearing (12) are set on the shaft shoulder on fixed orifice on described first (7) and second between fixed orifice (8), described apical axis (3) is an elongate rod, and apical axis (3) lower end is fixed, the diameter of described apical axis (3) is less than the diameter of lining blind hole (13), and an end of described apical axis (3) is arc pinnacle shape, withstands on the end face of the jewel bearing (12) in lower fixed hole.
2. the assembly structure of a kind of soft water valve flowmeter impeller according to claim 1 is characterized in that: on described first step (5) and second, fixed orifice (8) is clearance fit.
3. the assembly structure of a kind of soft water valve flowmeter impeller according to claim 1, it is characterized in that: the material of described jewel bearing (12) is corundum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320332603 CN203274814U (en) | 2013-06-08 | 2013-06-08 | Assembly structure of soft water valve flow rate meter impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320332603 CN203274814U (en) | 2013-06-08 | 2013-06-08 | Assembly structure of soft water valve flow rate meter impeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203274814U true CN203274814U (en) | 2013-11-06 |
Family
ID=49505201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320332603 Expired - Fee Related CN203274814U (en) | 2013-06-08 | 2013-06-08 | Assembly structure of soft water valve flow rate meter impeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203274814U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103921107A (en) * | 2014-04-18 | 2014-07-16 | 宁波力盛源塑业有限公司 | Automatic assembling tool of impeller lining and agate of water meter |
| CN106378625A (en) * | 2016-10-27 | 2017-02-08 | 天津银宝山新科技有限公司 | Impeller assembling system and assembling method |
-
2013
- 2013-06-08 CN CN 201320332603 patent/CN203274814U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103921107A (en) * | 2014-04-18 | 2014-07-16 | 宁波力盛源塑业有限公司 | Automatic assembling tool of impeller lining and agate of water meter |
| CN106378625A (en) * | 2016-10-27 | 2017-02-08 | 天津银宝山新科技有限公司 | Impeller assembling system and assembling method |
| CN106378625B (en) * | 2016-10-27 | 2018-06-26 | 天津银宝山新科技有限公司 | The package system and assemble method of impeller |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131106 Termination date: 20140608 |