CN209280067U - A kind of magnetic coupling transmission structure suitable for water meter - Google Patents
A kind of magnetic coupling transmission structure suitable for water meter Download PDFInfo
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- CN209280067U CN209280067U CN201822057511.3U CN201822057511U CN209280067U CN 209280067 U CN209280067 U CN 209280067U CN 201822057511 U CN201822057511 U CN 201822057511U CN 209280067 U CN209280067 U CN 209280067U
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- water meter
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- transmission shaft
- magnetic coupling
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Abstract
The utility model discloses a kind of magnetic coupling transmission structures suitable for water meter, it includes transmission shaft and gear assembly, wherein transmission shaft is suitable for connecting with water meter turbine, gear assembly is suitable for connecting with counter, transmission shaft is equipped with the first magnetic part, gear assembly is equipped with the second magnetic part, first magnetic part and the coaxial heart of the second magnetic part are arranged and are in same plane, the rotation of water impact water meter turbine, first magnetic part rotates synchronously under the drive of water meter turbine, first magnetic part has opposite polarity with the opposite position of the second magnetic part, pass through the magnetic coupling power generated between the two, transmission shaft drives gear assembly to rotate synchronously, it is measured to which the rotation of water meter turbine is transferred to counter.The utility model structure is simple, and connection is reliable, and the torque density of transmitting is big, and influences very little to the frictional resistance of central gear, can effectively solve the contradiction that dry-type meter counter takes off magnetic and sensitivity enhancement.
Description
Technical field
The utility model relates to water meter fields, are in more detail related to a kind of magnetic coupling transmission structure suitable for water meter.
Background technique
Currently, existing dry-type meter magnetic coupling transmission structure generally include the first magnetic pole of band 11A vertical shaft head 10A and
Central gear 20A with the second magnetic pole 21A, neutral axis head 10A are suitable for connecting with impeller, and central gear 20A is suitable for and meter
Number device connection.As shown in Fig. 1, the first magnetic pole 11A and the second magnetic pole 21A is arranged using end-surface type, and impeller rotation drives vertical shaft
Head 10A is rotated synchronously, and central gear 20A 10A synchronous with vertical shaft under the action of magnetic coupling power keeps rotating synchronously, thus by leaf
The revolving speed of wheel is transferred to counter, and counter carries out the metering of water.
But the magnetic pole arrangement of above-mentioned end-surface type can not solve dry-type meter sensitivity enhancement and counter takes off magnetic
Contradiction.During Magnetic drive, there is certain axial magnetic pull between the first magnetic pole 11A and the second magnetic pole 21A, which makes
The frictional resistance of central gear 20A increases, and adversely affects to metering sensitivity of the dry-type meter under small stream work, simultaneously
The service life that can accelerate gear wear, reduce water meter；And if reducing bonding force between magnetic pole, Magnetic drive is easily caused in dry type
Failure under the big stream work of water meter, causes central gear 20A revolving speed not catch up with wheel speed, ultimately causes counter and takes off magnetic, band
The problem of coming the stalling of sensitivity pointer, shake or stall.
Utility model content
The purpose of this utility model is to provide a kind of magnetic coupling transmission structures suitable for water meter, and structure is simple, connection
Reliably, the torque density of transmitting is big, and influences very little to the frictional resistance of central gear, can effectively solve dry water meter
Number device takes off the contradiction of magnetic and sensitivity enhancement.
To achieve the goals above, the utility model provides a kind of magnetic coupling transmission structure suitable for water meter comprising:
Transmission shaft and gear assembly, wherein the transmission shaft be suitable for connect with water meter turbine, the gear assembly suitable for
Counter connection, the transmission shaft are equipped with the first magnetic part, and the gear assembly is equipped with the second magnetic part, first magnetic part
With the coaxial heart setting of second magnetic part and in same plane, the rotation of water impact water meter turbine, described first is magnetic
Part rotates synchronously under the drive of water meter turbine, and first magnetic part has opposite with the opposite position of second magnetic part
Polarity, by the magnetic coupling power generated between the two, the transmission shaft drives the gear assembly to rotate synchronously, thus by water meter
The rotation of impeller is transferred to counter and is measured.
Preferred embodiment according to the present utility model, the end of the transmission shaft is arranged in first magnetic part, described
The end of the gear assembly is arranged in second magnetic part, and second magnetic part is arranged on the inside of first magnetic part.
Preferred embodiment according to the present utility model, the magnetic coupling transmission structure suitable for water meter further comprises close
Sealing assembly, the seal assembly are arranged between first magnetic part and second magnetic part, are used for the gear set
Part and water flow completely cut off, and the seal assembly has axis hole and mounting base, and the transmission shaft is rotatably installed in the axis hole, institute
It states gear assembly and is mounted on the mounting base.
Preferred embodiment according to the present utility model, the gear assembly include gearcase and central gear, the gear
Bearing block is provided in box, the central gear is rotatably installed in the bearing block, and second magnetic part is arranged in institute
Central gear is stated, the central gear is adapted to counter.
Preferred embodiment according to the present utility model, the seal assembly include isolation board and blind flange, the axis hole and
In the isolation board, the blind flange is arranged between the gearcase and the isolation board for the mounting base setting.
Preferably, first magnetic part and the second magnetic part shape are annular.
Preferably, first magnetic part and second magnetic part respectively include multiple magnets, multiple magnets point
It is not arranged with different alternating polarities circumferentially.
Preferably, first magnetic part and second magnetic part include the magnet of identical quantity, the magnetic of opposed polarity
Spacing distance between body is equal.
Preferably, first magnetic part and second magnetic part respectively include 4 magnets, to form four pairs of couplings
Field structure.
Compared with prior art, the utility model has the beneficial effects that: by first magnetic part and second magnetism
Part is arranged concentric and coplanarly, and not only connection is reliable, and the torque density of transmitting is big, and avoids under end-surface type arragement construction
The magnetic pull generated between pole pair efficiently solves dry water meter to reduce the frictional resistance of the central gear
Number device takes off the contradiction of magnetic and sensitivity enhancement.
The above-mentioned and other purpose of the utility model, feature, advantage will in the following detailed description, attached drawing and
The attached claims further clarify.
Detailed description of the invention
Fig. 1 is the diagrammatic cross-section of magnetic coupling transmission structure in the prior art；
Fig. 2 is the section signal of the magnetic coupling transmission structure suitable for water meter of preferred embodiment according to the present utility model
Figure；
Fig. 3 is the first magnetic circle of preferred embodiment according to the present utility model and the arrangement schematic diagram of the second magnetic circle；
In figure: the 10A of vertical shaft head；First magnetic pole 11A；Central gear 20A；Second magnetic pole 21A；Water meter turbine 10；Transmission
Axis 20；First magnetic part 21；End part of driving shaft 22；Gear assembly 30；Gearcase 31；Bearing block 32；Central gear 33；Second magnetic
Property part 331；Seal assembly 40；Isolation board 41；Axis hole 411；Mounting base 412；Blind flange 42.
Specific embodiment
In the following, being described further in conjunction with attached drawing and specific embodiment to utility model, it should be noted that
Under the premise of not colliding, new reality can be formed between various embodiments described below or between each technical characteristic in any combination
Apply example.
It is described below for disclosing the utility model so that those skilled in the art can be realized the utility model.It retouches below
Preferred embodiment in stating is only used as illustrating, it may occur to persons skilled in the art that other obvious modifications.It is retouched following
The basic principle of the utility model defined in stating can be applied to other embodiments, deformation scheme, improvement project, etc. Tongfangs
The other technologies scheme of case and the spirit and scope without departing from the utility model.
It will be understood by those skilled in the art that in the exposure of the utility model, term " longitudinal direction ", " transverse direction ", "upper",
The orientation or position of the instructions such as "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside"
Relationship is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of describing the present invention and simplifying the description, and
It is not that the device of indication or suggestion meaning or element must have a particular orientation, be constructed and operated in a specific orientation, therefore
Above-mentioned term should not be understood as limiting the present invention.
It is understood that term " one " is interpreted as " at least one " or " one or more ", i.e., in one embodiment,
The quantity of one element can be one, and in a further embodiment, the quantity of the element can be it is multiple, term " one " is no
It can be interpreted as the limitation to quantity.
Referring to Fig. 2 and Fig. 3 of attached drawing, the magnetic coupling transmission suitable for water meter of preferred embodiment according to the present utility model
Structure will be elucidated in following description.The magnetic coupling transmission structure suitable for water meter includes transmission shaft 20 and gear
Component 30, wherein the transmission shaft 20 is suitable for connecting with water meter turbine 10, the gear assembly 30 is suitable for counter (in figure not
Show) connection.
The transmission shaft 20 be equipped with the first magnetic part 21, the gear assembly 30 be equipped with the second magnetic part 331, described first
Magnetic part 21 and the coaxial heart of second magnetic part 331 are arranged and are in same plane.First magnetic part 21 and described
The opposite position of second magnetic part 331 has opposite polarity, to generate magnetic coupling power mutually.10 turns of water impact water meter turbine
Dynamic, first magnetic part 21 rotates synchronously under the drive of water meter turbine 10, passes through first magnetic part 21 and described the
Magnetic coupling power between two magnetic parts 331, the transmission shaft 20 drives the gear assembly 30 to rotate synchronously, thus by water meter turbine
10 rotation is transferred to counter and is measured.
Preferably, in end part of driving shaft 22, second magnetic part 331 is arranged described for the setting of the first magnetic part 21
The end of gear assembly 30, the setting of the second magnetic part 331 is in 21 inside of the first magnetic part.
Specifically, the magnetic coupling transmission structure suitable for water meter further comprises seal assembly 40.It is described close
Sealing assembly 40 is arranged between first magnetic part 21 and second magnetic part 331, for by the gear assembly 30 with
Water flow isolation.The seal assembly 40 has axis hole 411 and mounting base 412, and the transmission shaft 20 is rotatably installed in described
Axis hole 411, the gear assembly 30 are mounted on the mounting base 412.
Further, the gear assembly 30 includes gearcase 31 and central gear 33, and counter is mounted on the gear
In box 31.Bearing block 32 is provided in the gearcase 31, the central gear 33 is rotatably installed in the bearing block 32,
Second magnetic part 331 is arranged at the central gear 33, and the central gear 33 is adapted to counter.
The seal assembly 40 includes isolation board 41 and blind flange 42, and the axis hole 411 and the setting of the mounting base 412 exist
The isolation board 41, the blind flange 42 are arranged between the gearcase 31 and the isolation board 41.
As shown in Fig. 3, the shape of first magnetic part 21 and second magnetic part 331 is annular, and the two is concentric
And it is coplanar be arranged, the setting of the first magnetic part 21 is in 331 periphery of the second magnetic part.
Preferably, first magnetic part 21 and second magnetic part 331 respectively include multiple magnets, respectively circumferentially
It is arranged with different alternating polarities.First magnetic part 21 and second magnetic part 331 include the magnet of identical quantity, no
Spacing distance between the magnet of same polarity is equal, so that between first magnetic part 21 and second magnetic part 331
Magnetic torque distribution it is more uniform.
In the preferred embodiment, first magnetic part 21 and second magnetic part 331 respectively include 4 magnets,
To form four pairs of coupled poles structures.When water meter turbine 10 drives the transmission shaft 20 to rotate, first magnetic part 21
Certain angle is rotated and deflects, due to that can generate magnetic coupling force between the magnet of opposed polarity, second magnetic part 331 will be
It keeps rotating synchronously with first magnetic part 21 under the action of magnetic torque, so that the central gear 33 be driven to rotate.It is described
The rotation of water meter turbine 10 is transferred to counter by central gear 33, to complete the metering to water meter water flow volume is flowed through.
It will be readily appreciated by those skilled in the art that first magnetic part 21 and second magnetic part 331 distinguish institute
Including the quantity of magnet, shape, material and be circumferentially arranged the magnetic coupling that mode is suitable for water meter described in the utility model
It closes unrestricted in drive mechanism.For example, in the specific example shown in attached drawing 3, with first magnetic part 21 and described
Two magnetic parts 331 respectively include 4 magnets with example come illustrate and disclose described in the utility model be suitable for water meter magnetic coupling
The content and feature of drive mechanism, but the arrangement of attached drawing 3 can not be considered as to the content of the utility model and range
Limitation.Optionally, in other possible examples of the utility model, first magnetic part 21 and second magnetic part
331 can also only include a magnet respectively, if meet be formed by pole pair polarity on the contrary, and it is concentric coplanarly
Setting.
Magnetic coupling transmission structure provided by the utility model suitable for water meter by first magnetic part 21 with it is described
Second magnetic part 331 is arranged concentric and coplanarly, and not only connection is reliable, and the torque density of transmitting is big, and avoids end face
The magnetic pull generated between pole pair under formula arragement construction effectively solves to reduce the frictional resistance of the central gear 33
Dry-type meter counter of having determined takes off the contradiction of magnetic and sensitivity enhancement.
It should be understood by those skilled in the art that foregoing description and the embodiments of the present invention shown in the drawings are only used as
It illustrates and is not intended to limit the utility model.The purpose of this utility model completely and effectively realizes.The function of the utility model
Energy and structural principle show and illustrate in embodiment, under without departing from the principle, the embodiments of the present invention
Can there are any deformation or modification.
Claims (9)
1. a kind of magnetic coupling transmission structure suitable for water meter characterized by comprising
Transmission shaft and gear assembly, wherein the transmission shaft is suitable for connecting with water meter turbine, the gear assembly is suitable for and counting
Device connection, the transmission shaft are equipped with the first magnetic part, and the gear assembly is equipped with the second magnetic part, first magnetic part and institute
State the coaxial heart setting of the second magnetic part and in same plane, first magnetic part portion opposite with second magnetic part
Position has opposite polarity, and by the magnetic coupling power generated between the two, the transmission shaft drives institute under the action of water meter turbine
Gear assembly synchronous rotation is stated, is measured so that the rotation of water meter turbine is transferred to counter.
2. being suitable for the magnetic coupling transmission structure of water meter as described in claim 1, which is characterized in that first magnetic part is set
It sets in the end of the transmission shaft, the end of the gear assembly is arranged in second magnetic part.
3. being suitable for the magnetic coupling transmission structure of water meter as described in claim 1, which is characterized in that the gear assembly includes
Gearcase and central gear are provided with bearing block in the gearcase, and the central gear is rotatably installed in the bearing
Seat, second magnetic part are arranged in the central gear, and the central gear is adapted to counter.
4. being suitable for the magnetic coupling transmission structure of water meter as claimed in claim 3, which is characterized in that further comprise sealing group
Part, the seal assembly are arranged between first magnetic part and second magnetic part, for by the gear assembly with
Water flow isolation, the seal assembly have axis hole and mounting base, and the transmission shaft is rotatably installed in the axis hole, the tooth
Wheel assembly is mounted on the mounting base.
5. being suitable for the magnetic coupling transmission structure of water meter as claimed in claim 4, which is characterized in that the seal assembly includes
In the isolation board, the blind flange is arranged in the gear for isolation board and blind flange, the axis hole and mounting base setting
Between box and the isolation board.
6. as described in claim 1 be suitable for water meter magnetic coupling transmission structure, which is characterized in that first magnetic part and
The second magnetic part shape is annular.
7. as claimed in claim 6 be suitable for water meter magnetic coupling transmission structure, which is characterized in that first magnetic part and
Second magnetic part respectively includes multiple magnets, and the multiple magnet is circumferentially arranged respectively with different alternating polarities.
8. as claimed in claim 7 be suitable for water meter magnetic coupling transmission structure, which is characterized in that first magnetic part and
Second magnetic part includes the magnet of identical quantity, and the spacing distance between the magnet of opposed polarity is equal.
9. such as the described in any item magnetic coupling transmission structures suitable for water meter of claim 6-8, which is characterized in that described first
Magnetic part and second magnetic part respectively include 4 magnets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822057511.3U CN209280067U (en) | 2018-12-07 | 2018-12-07 | A kind of magnetic coupling transmission structure suitable for water meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822057511.3U CN209280067U (en) | 2018-12-07 | 2018-12-07 | A kind of magnetic coupling transmission structure suitable for water meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209280067U true CN209280067U (en) | 2019-08-20 |
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ID=67610535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822057511.3U Active CN209280067U (en) | 2018-12-07 | 2018-12-07 | A kind of magnetic coupling transmission structure suitable for water meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209280067U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111210729A (en) * | 2020-02-28 | 2020-05-29 | 上海天马微电子有限公司 | Foldable display device |
| CN113223380A (en) * | 2021-05-20 | 2021-08-06 | 电子科技大学成都学院 | Mathematics probability learning device |
-
2018
- 2018-12-07 CN CN201822057511.3U patent/CN209280067U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111210729A (en) * | 2020-02-28 | 2020-05-29 | 上海天马微电子有限公司 | Foldable display device |
| CN111210729B (en) * | 2020-02-28 | 2022-08-26 | 上海天马微电子有限公司 | Foldable display device |
| CN113223380A (en) * | 2021-05-20 | 2021-08-06 | 电子科技大学成都学院 | Mathematics probability learning device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Hongxing Road Jiangbei District 315000 Zhejiang city of Ningbo province No. 355 Patentee after: Ningbo water meter (Group) Co.,Ltd. Address before: Hongxing Road Jiangbei District 315000 Zhejiang city of Ningbo province No. 355 Patentee before: NINGBO WATER METER Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |