CN204007750U - Photoelectromagnetic coupling rotary-piston type flowmeters - Google Patents
Photoelectromagnetic coupling rotary-piston type flowmeters Download PDFInfo
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- CN204007750U CN204007750U CN201420403103.8U CN201420403103U CN204007750U CN 204007750 U CN204007750 U CN 204007750U CN 201420403103 U CN201420403103 U CN 201420403103U CN 204007750 U CN204007750 U CN 204007750U
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- magnet
- rotary
- gland
- photoelectromagnetic
- piston type
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Abstract
The utility model discloses a kind of photoelectromagnetic coupling rotary-piston type flowmeters, solved the problem that existing rotary-piston type flowmeters precision is low, reliability is low.In measuring room upper end, be provided with supporting cover, lower magnet lower surface is fixedly connected with the driving lever that runs through this supporting cover, and the lower end of driving lever and rotary-piston top are in transmission connection; On supporting cover, be provided with the gland that covers magnet and lower magnet, between upper magnet and lower magnet, be provided with the seal diaphragm coordinating with the body seal that circulates; Upper magnet and lower magnet are coupled and are positioned at directly over lower magnet, on gland, by bearing fit, there is the rotating shaft being fixedly connected with upper magnet, the end face of gland is stretched out in the upper end of this rotating shaft, and photoelectric code disk is sleeved on the upper end of rotating shaft, and photoelectric sensor is corresponding with the position of photoelectric code disk.Photoelectromagnetic coupling rotary-piston type flowmeters of the present utility model, the cooperation by upper magnet, lower magnet, gland, photoelectric code disk, photoelectric sensor etc., has improved precision and reliability, and has reduced failure rate.
Description
Technical field
The utility model relates to fluid flow counter device, and particularly a kind of precision is high, reliability is high and the photoelectromagnetic of failure rate is low coupling rotary-piston type flowmeters.
Background technology
Rotary-piston type flowmeters is a kind of of volumeter, its rotor is the container of a constant volume, every rotation one week, discharges the fluid of fixed volume, therefore can calculate accordingly the flow of rotary-piston type flowmeters in the unit interval or the flow in certain hour.Rotary-piston type flowmeters volume is little, cost is low, measuring accuracy is higher, is widely used in the industrial sectors such as oil, chemical industry, coating, medicine, food.Rotary-piston type flowmeters is except mechanical part, in order to be connected with controller (PLC, single-chip microcomputer etc.), also must there be counting unit and signal processing unit, Hall element volume is little, cost is low, sensitivity is higher, and the counting unit of rotary-piston type flowmeters is generally to adopt Hall element.This flowmeter is generally to place ring-shaped magnet on the rotor of flowmeter, corresponding with ring-shaped magnet is six unipolarity Hall elements, when rotor rotates, Hall element produces reaction to the magnetic field changing, produce pulse signal, pulse signal after filtering, export to controller after amplification, shaping.But Hall effect rotary-piston type flowmeters signal processing circuit is more complicated, output waveform is not ideal enough, anti-electromagnetic interference capability a little less than, in actual use, reliability is poor, failure rate is higher; Due to the restriction of flowmeter inner space, generally can only arrange six Hall elements, make the resolution of Hall effect rotary-piston type flowmeters not high, be difficult to further improve measuring accuracy.
Conventional rotary-piston type flowmeters adopts Hall element as counter, and signal processing circuit is more complicated, and output waveform is undesirable, and anti-electromagnetic interference capability is not strong, and reliability is poor, and failure rate is higher, and working service cost is higher; Due to the restriction of flowmeter inner space, cannot arrange too much Hall element, resolution is not high, makes the measuring accuracy of flowmeter be difficult to improve.
Utility model content
In order to overcome above-mentioned existing technological deficiency, the purpose of this utility model is: provide that a kind of precision is high, reliability is high and the photoelectromagnetic of failure rate is low coupling rotary-piston type flowmeters.
In order to achieve the above object, the utility model is achieved through the following technical solutions: photoelectromagnetic coupling rotary-piston type flowmeters, comprise circulation main body and rotary-piston, and the liquid feeding end of described circulation main body is connected by measuring room and rotary-piston with outlet end; Also comprise magnet, lower magnet, photoelectric code disk and photoelectric sensor; Described measuring room upper end is provided with supporting cover, and described lower magnet lower surface is fixedly connected with the driving lever that runs through this supporting cover, between this driving lever and supporting cover, is combined with bearing, and the lower end of driving lever and rotary-piston top are in transmission connection; On described supporting cover, be provided with the gland that covers magnet and lower magnet, between described upper magnet and lower magnet, be provided with the seal diaphragm coordinating with the body seal that circulates; Described upper magnet and lower magnet are coupled and are positioned at directly over lower magnet, on described gland, by bearing fit, there is the rotating shaft being fixedly connected with upper magnet, the end face of gland is stretched out in the upper end of this rotating shaft, described photoelectric code disk is sleeved on the upper end of rotating shaft, described photoelectric sensor is arranged on gland end face, the position corresponding with photoelectric code disk.
Described upper magnet and lower magnet are ring-shaped magnet.
Described upper magnet and lower magnet are annular rubidium magnet.
Described seal diaphragm is provided with rubber seal with circulation main body cooperation place.
The beneficial effects of the utility model are: photoelectromagnetic coupling rotary-piston type flowmeters of the present utility model, by the cooperation of upper magnet, lower magnet, gland, photoelectric code disk, photoelectric sensor etc., not only improve precision and reliability, reduced failure rate.Because described upper magnet and lower magnet are ring-shaped magnet, upper magnet and lower magnet coupling performance are good, and in rotary course, stability is high, have improved precision and the reliability of whole photoelectromagnetic coupling rotary-piston type flowmeters.Because described seal diaphragm and circulation main body cooperation place are provided with rubber seal, improved sealing property, effectively prevent the damage of the electronic equipments such as photoelectric code disk, photoelectric sensor and circuit, and reduced failure rate.
Accompanying drawing explanation
Fig. 1 is the sectional structure schematic diagram of photoelectromagnetic coupling rotary-piston type flowmeters of the present utility model;
Fig. 2 is the plan structure schematic diagram of photoelectromagnetic coupling rotary-piston type flowmeters of the present utility model;
In figure, 1-photoelectric code disk, 2-photoelectric sensor, 3-rotating shaft, 4-bearing, 5-gland, 6-upper magnet, 7-lower magnet, 8-seal diaphragm, 9-driving lever, 10-rotary-piston, 11-circulation main body, 12-liquid feeding end, 13-outlet end, 14-measuring room central shaft, 15-piston middle spindle, 16-measuring room.17-inlet, 18-liquid outlet, 19-dividing plate, 20-supporting cover.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described, but protection domain of the present utility model is not limited to the following stated.
As shown in Figure 1 and Figure 2, photoelectromagnetic coupling rotary-piston type flowmeters of the present utility model, comprises circulation main body 11 and rotary-piston 10, and the liquid feeding end of described circulation main body 11 is connected by measuring room 16 and rotary-piston 10 with outlet end; Also comprise magnet 6, lower magnet 7, photoelectric code disk 1 and photoelectric sensor 2; Described measuring room 16 upper ends are provided with supporting cover 20, and described lower magnet 7 lower surfaces are fixedly connected with the driving lever 9 that runs through this supporting cover, between this driving lever 9 and supporting cover 20, are combined with bearing 4, and the lower end of driving lever 9 and rotary-piston top are in transmission connection; On described supporting cover 20, be provided with the gland 5 that covers magnet 6 and lower magnet 7, between described upper magnet 6 and lower magnet 7, be provided with the seal diaphragm 8 being sealed and matched with the main body 11 that circulates; Described upper magnet 6 is coupled and is positioned at directly over lower magnet 7 with lower magnet 7, on described gland 5, by bearing 4, be combined with the rotating shaft 3 being fixedly connected with upper magnet 6, the end face of gland 5 is stretched out in the upper end of this rotating shaft 3, described photoelectric code disk 1 is sleeved on the upper end of rotating shaft 3, described photoelectric sensor 2 is arranged on gland 5 end faces, the position corresponding with photoelectric code disk 1.Photoelectromagnetic coupling rotary-piston type flowmeters of the present utility model, by the cooperation of upper magnet 6, lower magnet 7, gland 5, photoelectric code disk 1, photoelectric sensor 2 etc., not only improve precision and the reliability of whole photoelectromagnetic coupling rotary-piston type flowmeters, and reduced failure rate.During use, liquid enters from the liquid feeding end 12 of circulation main body 11, rotary-piston 10 rotates under the promotion of liquid, and by the liquid in rotary-piston 10 and measuring room 16 be transported to circulation main body 11 outlet end, rotary-piston 10 often rotates a circle, flowmeter flows out the liquid of fixed volume, the frequency of rotary-piston 10 rotations is identical with the frequency of lower magnet 7 rotations, lower magnet 7 and upper magnet 6 couplings, magnet 6 is synchronously rotated, drive photoelectric code disk 1 rotation, photoelectric sensor 2 calculates the rotating speed of rotary-piston 10 according to the rotation of photoelectric code disk 1, can show corresponding flow.It should be noted that, measuring principle of the present utility model is that liquid flows to from liquid feeding end 12, by inlet 17, flow into measuring room 16, rotary-piston 10 and measuring room 16, between supporting cover 20, keep the metric space of a constancy of volume, rotary-piston 10 is as main measuring element, dividing plate 19 and rotary-piston 10 are divided into entrance cavity and outlet plenum with the osculatory of measuring room 16 inwalls whole metric space, under the effect of entrance cavity and outlet plenum pressure reduction, forming a rotating torque drives rotary-piston 10 to rotate, piston middle spindle 15 rotates around measuring room central shaft 14, rotary-piston 10 pistons often turn around and from liquid outlet 18, discharge the fluid of a fixed volume.
As preferably, described upper magnet 6 and lower magnet 7 are ring-shaped magnet, the magnetic induction line of ring-shaped magnet is more even compared with the magnetic induction line of the magnet of square or other shapes, make magnet 6 and lower magnet 7 coupling performances good, in rotary course, stability is high, has improved precision and the reliability of whole photoelectromagnetic coupling rotary-piston type flowmeters.
Further, described upper magnet 6 and lower magnet 7 are annular rubidium magnet, the Magnetic Phase of annular rubidium magnet, when strong, makes magnet 6 and lower magnet 7 coupling performances better, has further improved precision and the reliability of whole photoelectromagnetic coupling rotary-piston type flowmeters.
As preferably, described seal diaphragm 8 is provided with rubber seal with circulation main body 11 cooperation places, has improved sealing property, has effectively prevented the damage of the electronic equipments such as photoelectric code disk 1, photoelectric sensor 2 and circuit, has reduced failure rate.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
Claims (4)
1. photoelectromagnetic coupling rotary-piston type flowmeters, comprise circulation main body (11) and rotary-piston (10), the liquid feeding end (12) of described circulation main body (11) is connected by measuring room (16) and rotary-piston (10) with outlet end (13); It is characterized in that: also comprise magnet (6), lower magnet (7), photoelectric code disk (1) and photoelectric sensor (2); Described measuring room (16) upper end is provided with supporting cover (20), described lower magnet (7) lower surface is fixedly connected with the driving lever (9) that runs through this supporting cover (20), between this driving lever (9) and supporting cover (20), be combined with bearing (4), the lower end of driving lever (9) and rotary-piston (10) top are in transmission connection; On described supporting cover (20), be provided with the gland (5) that covers magnet (6) and lower magnet (7), between described upper magnet (6) and lower magnet (7), be provided with the seal diaphragm (8) being sealed and matched with the main body that circulates (11); Described upper magnet (6) is coupled and is positioned at directly over lower magnet (7) with lower magnet (7), described gland (5) is upper is combined with by bearing (4) rotating shaft (3) being fixedly connected with upper magnet (6), the end face of gland (5) is stretched out in the upper end of this rotating shaft (3), described photoelectric code disk (1) is sleeved on the upper end of rotating shaft (3), described photoelectric sensor (2) is arranged on gland (5) end face, the position corresponding with photoelectric code disk (1).
2. photoelectromagnetic coupling rotary-piston type flowmeters according to claim 1, is characterized in that: described upper magnet (6) and lower magnet (7) are ring-shaped magnet.
3. photoelectromagnetic coupling rotary-piston type flowmeters according to claim 1, is characterized in that: described upper magnet (6) and lower magnet (7) are annular rubidium magnet.
4. according to the photoelectromagnetic coupling rotary-piston type flowmeters described in any one claim in claims 1 to 3, it is characterized in that: described seal diaphragm (8) is provided with rubber seal with circulation main body (11) cooperation place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420403103.8U CN204007750U (en) | 2014-07-21 | 2014-07-21 | Photoelectromagnetic coupling rotary-piston type flowmeters |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420403103.8U CN204007750U (en) | 2014-07-21 | 2014-07-21 | Photoelectromagnetic coupling rotary-piston type flowmeters |
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| Publication Number | Publication Date |
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| CN204007750U true CN204007750U (en) | 2014-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420403103.8U Expired - Fee Related CN204007750U (en) | 2014-07-21 | 2014-07-21 | Photoelectromagnetic coupling rotary-piston type flowmeters |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104765387A (en) * | 2015-04-20 | 2015-07-08 | 泸州市慧江机械制造有限公司 | Rotary piston type flow meter |
| CN105043470A (en) * | 2015-04-30 | 2015-11-11 | 宁波职业技术学院 | Open type flow measurement system device for teaching |
| CN108375397A (en) * | 2018-04-09 | 2018-08-07 | 中国农业科学院北京畜牧兽医研究所 | A kind of milk stream flowing meter |
| CN108387280A (en) * | 2018-02-12 | 2018-08-10 | 张家港海纳德智能科技有限公司 | A kind of anti-sticking rotary-piston flowmeter |
-
2014
- 2014-07-21 CN CN201420403103.8U patent/CN204007750U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104765387A (en) * | 2015-04-20 | 2015-07-08 | 泸州市慧江机械制造有限公司 | Rotary piston type flow meter |
| CN105043470A (en) * | 2015-04-30 | 2015-11-11 | 宁波职业技术学院 | Open type flow measurement system device for teaching |
| CN108387280A (en) * | 2018-02-12 | 2018-08-10 | 张家港海纳德智能科技有限公司 | A kind of anti-sticking rotary-piston flowmeter |
| CN108375397A (en) * | 2018-04-09 | 2018-08-07 | 中国农业科学院北京畜牧兽医研究所 | A kind of milk stream flowing meter |
| CN108375397B (en) * | 2018-04-09 | 2023-10-10 | 中国农业科学院北京畜牧兽医研究所 | Milk flowmeter |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141210 Termination date: 20180721 |
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| CF01 | Termination of patent right due to non-payment of annual fee |