CN210089774U

CN210089774U - Positive displacement high-pressure flow sensor

Info

Publication number: CN210089774U
Application number: CN201921306489.XU
Authority: CN
Inventors: 冯先峰; 高保敏
Original assignee: Shandong Lande Hydraulic Seiko Co Ltd
Current assignee: Shandong Lande Hydraulic Seiko Co Ltd
Priority date: 2019-08-13
Filing date: 2019-08-13
Publication date: 2020-02-18
Anticipated expiration: 2029-08-13

Abstract

The utility model relates to a positive displacement high pressure flow sensor equipment technical field provides a positive displacement high pressure flow sensor, including the flowmeter casing, be provided with fluid inlet and fluid outlet on the lateral wall of flow casing, the lower extreme of flowmeter casing is connected with the base, is provided with two pivots on the base, and has cup jointed oval gear in the pivot, is connected with the positioning disk on the inner wall of flowmeter casing, and has offered convenient pivot pivoted round hole on the positioning disk. The utility model overcomes prior art's is not enough, reasonable in design, and compact structure has solved current high-pressure flowmeter measurement accuracy lower, the poor problem of sealing performance simultaneously, the utility model discloses a plurality of structural grouping through set up magnetic sensor and magnet and improve measuring precision in non-magnetically permeable space, through mutually supporting of magnetic sensor and a plurality of magnet simultaneously, can carry out the accurate measurement to slight flow's change, improve the precision of measurement.

Description

Positive displacement high-pressure flow sensor

Technical Field

The utility model relates to a positive displacement high pressure flow sensor equipment technical field, concretely relates to positive displacement high pressure flow sensor.

Background

In fields closely related to human development, such as industrial production, scientific experiments, energy metering, transportation, and social life, flow is an important parameter that needs to be measured and controlled frequently. The elliptic gear flowmeter is widely applied to industry due to the characteristics of high metering precision, small oil temperature influence and pressure loss, simple installation, stable performance, wide measuring range and the like. The traditional elliptical flowmeter can only be applied to a low-pressure environment and cannot completely meet the domestic market demand. The invention patent JP2306122 "positive displacement flowmeter" discloses an elliptic gear flowmeter, the end face of the elliptic gear is provided with a plurality of magnetic steels, a Hall sensor is adopted to detect the rotor rotation angular displacement signal to measure the flow, the resolution is high, but due to the non-uniformity of the elliptic gear angular speed under the constant flow, the pulse period output by the Hall element is non-uniform, the measurement precision is not high, in addition, the upper end cover for placing the Hall element is made of non-magnetic conductive material, and the elliptic gear flowmeter is not suitable for being used in the high-pressure liquid occasion.

Meanwhile, the traditional high-pressure flow meter has the defects of poor sealing performance, easy leakage, running and dripping and high potential safety hazard in actual use, and therefore, the volume type high-pressure flow sensor is provided.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides a positive displacement high pressure flow sensor has overcome the not enough of prior art, reasonable in design, and compact structure has solved current high pressure flowmeter measurement accuracy lower, and sealing performance is poor simultaneously problem, the utility model discloses a plurality of structural grouping through with magnetic sensor and magnet setting improvement measuring precision in non-magnetically permeable space, through mutually supporting of magnetic sensor and a plurality of magnet simultaneously, can carry out the accurate measurement to the change of slight flow, improve the precision of measurement, simultaneously through flowmeter casing and base integrated into one piece casting, improve sealed effect.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:

a positive displacement high-pressure flow sensor comprises a flow meter shell, wherein a fluid inlet and a fluid outlet are arranged on the side wall of the flow meter shell, and the lower end of the flow meter shell is connected with a base;

the base is provided with two rotating shafts, the rotating shafts are sleeved with elliptic gears, the inner wall of the flowmeter shell is connected with a positioning disc, round holes facilitating rotation of the rotating shafts are formed in the positioning disc, and the upper end of one rotating shaft penetrates through the round hole in the rotating shaft and is fixedly connected with an aluminum disc;

a plurality of fixed slots have been seted up on the aluminium dish, and be provided with magnet on the fixed slot, the flowmeter casing is connected with the welt on being located the inner wall of aluminium dish top, the upper end fixedly connected with top cap of flowmeter casing, and pegs graft on the top cap and have the magnetic sensor who is used for receiving the magnet signal.

Furthermore, the number of the magnets is more than or equal to 6, and the magnets are distributed in an annular and equidistant mode.

Furthermore, the rotating shaft is connected with the aluminum disc through a connecting sleeve, the lower end of the connecting sleeve is fixedly connected with the rotating shaft, and the upper end of the connecting sleeve is fixedly connected with the aluminum disc.

Furthermore, the lower end of the magnetic sensor penetrates through the top cover and is inserted into a tapered hole formed in the lining plate.

Further, the distance from the magnet to the center of the aluminum disc is equal to the horizontal distance from the magnetic sensor to the center of the aluminum disc.

Further, the lining plate is made of stainless steel materials.

Furthermore, an annular groove is formed in the side wall of the lining plate, and a sealing ring is arranged in the annular groove.

Further, the flowmeter shell and the base are integrally cast and formed by steel materials.

(III) advantageous effects

The embodiment of the utility model provides a positive displacement high pressure flow sensor. Comprises the following

Has the advantages that:

1. through adopting the fixed magnet of aluminium dish, the welt is made for stainless steel material simultaneously, and is not magnetic conduction, can reduce signal interference, makes magnet and magnetic sensor be in non-magnetic conduction space, improves the accuracy of measurement.

2. Through evenly setting up a plurality of magnets, make magnetic sensor can perceive the slight change of flow, improve the accuracy of measurement.

3. Through flowmeter casing and base adoption steel material integrated casting shaping, improve high pressure resistant effect, improve sealing performance simultaneously, reduce fluidic hourglass, run, drip the phenomenon.

4. The annular groove is formed in the side wall of the lining plate, and the sealing ring is arranged in the annular groove, so that fluid is prevented from flowing out from the upper side, and the sealing effect is improved once more.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic diagram illustrating the explosion of the three-dimensional structure of the present invention;

FIG. 3 is a schematic sectional view of the three-dimensional structure of the present invention;

FIG. 4 is a schematic view of a partial three-dimensional structure of the present invention;

fig. 5 is a perspective view of the lining board structure of the present invention.

In the figure: flowmeter casing 1, base 2, oval gear 3, pivot 3.1, positioning disk 4, adapter sleeve 4.1, aluminium dish 5, magnet 5.1, welt 6, sealing washer 6.1, top cap 7, magnetic sensor 8, fluid import a.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to the attached drawings 1-5, a positive displacement high pressure flow sensor comprises a flow meter shell 1, a fluid inlet a and a fluid outlet are arranged on the side wall of the flow meter shell 1, a base 2 is connected with the lower end of the flow meter shell 1, two rotating shafts 3.1 are arranged on the base 2, elliptic gears 3 are sleeved on the rotating shafts 3.1, a positioning disc 4 is connected with the inner wall of the flow meter shell 1, round holes facilitating the rotation of the rotating shafts 3.1 are arranged on the positioning disc 4, the upper end of one rotating shaft 3.1 penetrates through the round hole on the positioning disc 4 and is connected with an aluminum disc 5, a plurality of fixing grooves are arranged on the aluminum disc 5, magnets 5.1 are arranged on the fixing grooves, a lining plate 6 is connected on the inner wall of the flow meter shell 1 above the aluminum disc 5, a top cover 7 is fixedly connected with the upper end of the flow meter shell 1, a magnetic sensor 8 is inserted on the top cover 7, the lower end of the magnetic, the vertical distance between the magnetic sensor 8 and the magnet 5.1 can be reduced, and signals can be conveniently transmitted.

In this embodiment, as shown in fig. 3 and 4, the distance from the magnet 5.1 to the center of the aluminum disc 5 is equal to the horizontal distance from the magnetic sensor 8 to the center of the aluminum disc 5, so as to ensure that the magnet 5.1 can be located right below the magnetic sensor 8 along with the rotation of the magnet, thereby improving the metering accuracy.

When the high-pressure fluid enters the flowmeter shell 1 from the fluid inlet a during operation, at the moment, the high-pressure fluid pushes the elliptic gear 3 to rotate, the elliptic gear 3 drives the aluminum disc 5 to rotate through the rotating shaft, along with the rotation of the aluminum disc 5, the plurality of magnets 5.1 in the aluminum disc 5 rotate along with the rotating shaft, when the magnets 5.1 pass right below the magnetic sensor 8, the detector of the magnetic sensor 8 is a magnetic probe, when the magnetic probe works, a static magnetic field is formed around, when the magnets 5.1 enter the static magnetic field, a new magnetic field is induced and generated to disturb the original static magnetic field, the magnetic field is changed due to the disturbance generated by the movement change of a target, an electric signal is generated and transmitted to a subsequent display device, and the flow measurement of the fluid is known through the display device.

In the embodiment, the magnet 5.1 is fixed by the aluminum disc 5, and the lining plate 6 is made of stainless steel materials and is not magnetic, so that signal interference can be reduced, the magnet 5.1 and the magnetic sensor 8 are located in a non-magnetic conduction space, and the metering accuracy is improved.

In this embodiment, as shown in fig. 2 and 3, in order to improve the connection effect between the rotating shaft 3.1 and the aluminum disc 5, the rotating shaft 3.1 is connected with the aluminum disc 5 through the connecting sleeve 4.1, the lower end of the connecting sleeve 4.1 is fixedly connected with the rotating shaft 3.1, the upper end of the connecting sleeve 4.1 is fixedly connected with the aluminum disc 5, and the rotating shaft 3.1 is convenient to drive the aluminum disc 5 to rotate.

In this embodiment, as shown in fig. 5, an annular groove is formed in the side wall of the lining plate 6, and a sealing ring 6.1 is disposed in the annular groove, so that fluid is prevented from flowing out from above, and the sealing effect is improved.

In this embodiment, flowmeter casing 1 and base 2 adopt steel material integrated casting to form, improve high pressure resistant effect, improve sealing performance simultaneously, reduce fluidic hourglass, run, drip the phenomenon.

In this embodiment, the quantity more than or equal to 6 of magnet 5.1, a plurality of magnet 5.1 are annular equidistance and distribute, through evenly setting up a plurality of magnet 5.1, can perceive the slight change of flow, improves the accuracy of measurement.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. A positive displacement high-pressure flow sensor comprises a flow meter shell, wherein a fluid inlet and a fluid outlet are arranged on the side wall of the flow meter shell, and the lower end of the flow meter shell is connected with a base;

the method is characterized in that: the base is provided with two rotating shafts, the rotating shafts are sleeved with elliptic gears, the inner wall of the flowmeter shell is connected with a positioning disc, round holes facilitating rotation of the rotating shafts are formed in the positioning disc, and the upper end of one rotating shaft penetrates through the round hole in the rotating shaft and is fixedly connected with an aluminum disc;

2. A positive displacement high pressure flow sensor as claimed in claim 1, wherein: the number of the magnets is more than or equal to 6, and the magnets are distributed in an annular equidistant mode.

3. A positive displacement high pressure flow sensor as claimed in claim 1, wherein: the rotating shaft is connected with the aluminum disc through a connecting sleeve, the lower end of the connecting sleeve is fixedly connected with the rotating shaft, and the upper end of the connecting sleeve is fixedly connected with the aluminum disc.

4. A positive displacement high pressure flow sensor as claimed in claim 1, wherein: the lower end of the magnetic sensor penetrates through the top cover and is inserted into a tapered hole formed in the lining plate.

5. A positive displacement high pressure flow sensor as claimed in claim 1, wherein: the distance from the magnet to the center of the aluminum disc is equal to the horizontal distance from the magnetic sensor to the center of the aluminum disc.

6. A positive displacement high pressure flow sensor as claimed in claim 1, wherein: the lining plate is made of stainless steel materials.

7. A positive displacement high pressure flow sensor as claimed in claim 1, wherein: an annular groove is formed in the side wall of the lining plate, and a sealing ring is arranged in the annular groove.

8. A positive displacement high pressure flow sensor as claimed in claim 1, wherein: the flowmeter shell and the base are integrally cast and formed by steel materials.