Magnetic induction type gear flow meter

Abstract

The utility model discloses a magnetic induction type gear flow meter which comprises a shell, a containing cavity is formed in the shell, and a liquid inlet and a liquid outlet which are communicated with the containing cavity are formed in the surface of the shell. The two gears are arranged in the containing cavity, and the two gears are meshed with each other; the magnetic induction assembly is fixedly mounted on the shell; and the magnet is mounted on the gear and moves along with the gear. According to the magnetic induction type gear flow meter, when liquid flows out through the liquid inlet and the liquid outlet and flows through the two gears, the gears can be driven to rotate, when the gears rotate, pulse output can be output once every time the magnet passes through the detection range of the magnetic induction assembly, and therefore flow recording is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to flowmeter field especially relates to a magnetic induction type gear flow measuring meter. BACKGROUND

[0002] Gear flow measuring meter, it is one kind of volumetric magnetic induction type gear flow measuring meter, is used for the precise continuous or intermittent measurement of the flow or instantaneous flow of liquid in pipeline, is especially suitable for the flow measurement of high viscosity medium such as heavy oil, polyvinyl alcohol, resin etc. In portable use, it is more used for the monitoring of lubricating oil, fully controls the adding amount of lubricating oil, guarantees the normal operation of equipment. Gear magnetic induction type gear flow measuring meter is usually used in the occasion with higher pressure, adopts mechanical type measuring mode to make the sealing structure complex, and the overall structure volume is big. The current gear flow measuring meter generally measures flow on the exposed output shaft, and the flow measurement mode has larger error, and the external measurement is more troublesome. SUMMARY

[0003] The utility model discloses a magnetic induction type gear flow measuring meter, which aims to solve the above technical problems.

[0004] To achieve the above object, the utility model provides a magnetic induction type gear flow measuring meter, which comprises:

[0005] A housing is provided with a containing cavity inside, and a liquid inlet and a liquid outlet are arranged on the surface of the housing and communicate with the containing cavity.

[0006] Two gears are arranged in the containing cavity, and the two gears are engaged with each other.

[0007] A magnetic induction assembly is fixedly installed on the housing.

[0008] A magnet is installed on the gear and moves with the gear.

[0009] In an embodiment, the housing comprises an upper cover and a lower cover, the containing cavity is arranged on the lower cover, and the liquid inlet and the liquid outlet are arranged on both sides of the lower cover and communicate with the containing cavity.

[0010] In an embodiment, the housing further comprises a middle shell, the middle shell is arranged on the lower cover, and the magnetic induction assembly is installed on the middle shell.

[0011] In an embodiment, a cavity is recessed at the axis of the middle shell, and the magnetic induction assembly is arranged in the cavity.

[0012] In an embodiment, the upper cover is provided with a through hole, the lower cover is provided with a connecting hole corresponding to the through hole, and the upper cover is connected with the lower cover by penetrating the through hole to the connecting hole by a fastener.

[0013] In an embodiment, the middle shell is provided with a plurality of docking holes corresponding to the connecting holes.

[0014] In an embodiment, a plurality of through holes are arranged along the circumference of the upper cover.

[0015] In an embodiment, the liquid inlet and the liquid outlet are located on the same straight line.

[0016] In the technical scheme of the utility model, the magnetic induction type gear flow measuring meter comprises:

[0017] A shell is internally provided with an accommodating cavity, and the shell surface is provided with a liquid inlet and a liquid outlet which are in communication with the accommodating cavity;

[0018] Two gears are arranged in the accommodating cavity, and the two gears are in mesh with each other;

[0019] A magnetic induction assembly is fixedly installed on the shell;

[0020] A magnet is installed on the gear and moves with the gear.

[0021] In the technical scheme, when liquid flows out through the liquid inlet and the liquid outlet, the liquid flowing through the two gears drives the gears to rotate, and when the magnet passes through the detection range of the magnetic induction assembly once, an impulse output is output, so that flow recording is realized. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed in the embodiment or the prior art description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained from the structures shown in the drawings without creative labor.

[0023] Fig. 1 It is a structural schematic view of the magnetic induction type gear flow measuring meter of the embodiment of the utility model;

[0024] Fig. 2 It is a top view of the magnetic induction type gear flow measuring meter of the embodiment of the utility model;

[0025] Fig. 3 It is a split structural schematic view of the magnetic induction type gear flow measuring meter of the embodiment of the utility model.

[0026] The reference numerals in the attached figures are as follows: 10, shell; 11, cavity; 12, lower cover; 13, middle shell; 14, cavity; 15, connecting hole; 16, mating hole; 17, upper cover; 20, gear; 30, magnetic induction component; 40, magnet; 50, liquid inlet; 60, liquid outlet.

[0027] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0030] Furthermore, in this utility model, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0031] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0032] This utility model provides a magnetic induction gear flow meter.

[0033] like Figs. 1-3 As shown, the magnetic induction gear flow meter provided in this embodiment of the present invention includes:

[0034] The housing 10 has an internal cavity 11, and the surface of the housing 10 has an inlet 50 and an outlet 60 that are connected to the cavity 11 and located on the same straight line.

[0035] Two gears 20 are arranged in the accommodating cavity 11, and the two gears 20 are engaged with each other;

[0036] A magnetic induction assembly 30 is fixedly arranged on the shell 10;

[0037] A magnet 40 is arranged on the gear 20 and moves with the gear 20.

[0038] In the embodiment, when liquid flows out through the liquid inlet 50 and the liquid outlet 60, the liquid flowing through the two gears 20 drives the gears 20 to rotate. When the magnet 40 passes through the detection range of the magnetic induction assembly 30 once, the magnetic induction assembly 30 outputs a pulse output, thereby realizing flow recording.

[0039] The shell 10 includes an upper cover 17 and a lower cover 12. The accommodating cavity 11 is arranged on the lower cover 12. The liquid inlet 50 and the liquid outlet 60 are arranged on both sides of the lower cover 12 and are connected to the accommodating cavity 11. The shape of the accommodating cavity 11 is matched with the shape of the two gears 20 when the two gears 20 are engaged, so that the liquid entering through the liquid inlet 50 can better impact the gears 20 and force the gears 20 to rotate. In addition, a rotating shaft matched with the shaft center of the gear 20 is arranged at the bottom of the accommodating cavity 11. The gear 20 can rotate around the rotating shaft, and the limiting ability of the gear 20 is improved to prevent shaking.

[0040] In the above embodiment, the shell 10 further includes a middle shell 13. The middle shell 13 is arranged on the lower cover 12, and the magnetic induction assembly 30 is arranged on the middle shell 13. In the embodiment, the magnetic induction assembly 30 is fixedly arranged on the middle shell 13. When the magnet 40 rotates one circle under the action of the gear 20, the magnet 40 will pass below the magnetic induction assembly 30 once, thereby outputting a pulse data and realizing flow recording.

[0041] In addition, a cavity 14 is recessed at the shaft center of the middle shell 13. The magnetic induction assembly 30 is arranged in the cavity 14. The magnetic induction assembly 30 is fixed by a fastener connection mode to improve stability.

[0042] In the above embodiment, the upper cover 17 and the lower cover 12 are detachably connected, which is convenient for early assembly, later disassembly and maintenance, and replacement when the parts are aging.

[0043] Specifically, the upper cover 17 is provided with a through hole, the lower cover 12 is provided with a connecting hole 15 corresponding to the through hole, the upper cover 17 is connected with the lower cover 12 by penetrating the through hole into the connecting hole 15 by a fastener, and the middle shell 13 is provided with a plurality of docking holes 16 corresponding to the connecting hole 15. In the embodiment, the connection and fixation of the upper cover 17, the middle shell 13 and the lower cover 12 can be realized by penetrating the fastener into the through hole, aligning the docking hole 16 again and connecting and screwing. Meanwhile, only the fastener needs to be screwed when disassembling later. In the above embodiment, a plurality of through holes are arranged along the circumference of the upper cover 17.

[0044] The above merely describes the preferred embodiments of the present application, and does not limit the patent scope of the present application. Any equivalent structural transformation, direct / indirect application in other related technical fields within the concept of the present application, and the contents of the present application specification and drawings are included in the patent protection scope of the present application.

Claims

1. A magnetic inductive gear flowmeter characterized by, The magnetic induction type gear flowmeter comprises: a shell (10) with an accommodating cavity (11) formed inside, the shell (10) being provided with a liquid inlet (50) and a liquid outlet (60) communicating with the accommodating cavity (11); two gears (20) arranged in the accommodating cavity (11) and meshing with each other; a magnetic induction assembly (30) fixedly installed on the shell (10); a magnet (40) installed on the gear (20) and following the gear (20).

2. The magnetic inductive gear flowmeter according to claim 1, characterized in that The shell (10) comprises an upper cover (17) and a lower cover (12), the accommodating cavity (11) is arranged on the lower cover (12), and the liquid inlet (50) and the liquid outlet (60) are arranged on both sides of the lower cover (12) and communicate with the accommodating cavity (11).

3. A magnetic inductive gear flowmeter according to claim 2, characterized in that The shell (10) further comprises a middle shell (13) arranged on the lower cover (12), and the magnetic induction assembly (30) is installed on the middle shell (13).

4. A magnetic inductive gear flowmeter according to claim 3, characterized in that The middle shell (13) is provided with a cavity (14) at the center of the middle shell (13), and the magnetic induction assembly (30) is arranged in the cavity (14).

5. The magnetic inductive gear flowmeter of claim 3 wherein, The upper cover (17) is provided with a through hole, the lower cover (12) is provided with a connecting hole (15) corresponding to the through hole, and the upper cover (17) and the lower cover (12) are connected by penetrating the fastener from the through hole to the connecting hole (15).

6. The magnetic inductive gear flowmeter according to claim 5, characterized in that The middle shell (13) is provided with a plurality of butt joints (16) corresponding to the connecting hole (15).

7. The magnetic inductive gear flowmeter of claim 5 wherein, A plurality of through holes are arranged along the circumference of the upper cover (17).

8. The magnetic inductive gear flowmeter according to any of claims 1 to 7, characterized in that The liquid inlet (50) and the liquid outlet (60) are located on the same straight line.

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