CN208672058U - High sealing volumetric gear flow meter - Google Patents

Abstract

The utility model discloses a kind of high sealing volumetric gear flow meters, including lower case, upper cover, gear, bearing and signal pickup assembly, lower case is fixedly connected with upper cover, the inside of lower case forms chamber, gear is placed in chamber, bearing is embedded in gear centre, bearing centre is also embedded with gear pin, the two sides of gear are then respectively formed admission chamber and out sap cavity, feed liquor through-hole and out fluid through-hole are formed simultaneously in lower case, signal pickup assembly is installed on lid, the upper surface of lower case is in the sealing ring mounting groove for closing on one annular of recess formation downwards at chamber, sealing ring is provided in sealing ring mounting groove.The utility model can effectively ensure that liquid will not leak, and then guarantee measurement accuracy, the mounting area of flowmeter is increased effectively simultaneously, it ensure that the firmness and stability of flowmeter connection, it can additionally effectively prevent measuring mechanism to damage or influenced by extraneous factor, further ensure the measurement accuracy and accuracy of measuring mechanism.

Description

High sealing volumetric gear flow meter

Technical field

The utility model relates to a kind of flowmeters, and in particular to a kind of high sealing volumetric gear flow meter belongs to metering Fixture technology field.

Background technique

Flowmeter is a kind of positive displacement instrument, it is used for the fluid flow flowed through in measurement pipeline continuously or discontinuously, packet Include shell, metering cavity combining body, extreme adjuster, meter etc., when fluid to be measured flows through measurement chamber, the in-out end of flowmeter Pressure difference, drive rotor rotation are formed, while calculator is passed to by gear train assembly, directly indicates the liquid of flow meter Total amount, meter does period rotation according to rotor and shows data, firstly, the poor through-flow for affecting fluid altogether in rotor rotation Amount, therefore the detraction of measurement accuracy is resulted in, in addition, the gap of components, can also cause inaccurate in through-flow measurement.Leakage Flow also can through-flow determine accuracy on have adverse effect.

Summary of the invention

To solve the deficiencies in the prior art, the purpose of this utility model is to provide one kind can effectively realize sealing, and just In the high sealing volumetric gear flow meter of installation.

In order to achieve the above objectives, the utility model adopts the following technical solutions:

High sealing volumetric gear flow meter, including lower case, upper cover, left chamber's gear, right chamber gear, left chamber's axis It holds, right chamber bearing and signal pickup assembly, the lower case and upper cover connect by the way that several flowmeter upper cover lock screws are fixed It connects, the inside of lower case is formed with interconnected left chamber and right chamber, and left chamber's gear is set in left chamber, right chamber Room gear is arranged in right chamber, left chamber's gear and the engagement connection of right chamber gear, and left chamber's bearing and right chamber bearing It is then respectively embedded in left chamber's gear and right chamber gear centre, while also being divided at the center of left chamber's bearing and right chamber bearing It is not embedded with left chamber's gear pin and right chamber gear pin, the two sides of left chamber's gear and right chamber gear engagement place are then divided Not Xing Cheng admission chamber and sap cavity out, form feed liquor through-hole between one end and admission chamber of lower case, the other end of lower case then with Sap cavity forms out fluid through-hole out, in addition, above-mentioned signal pickup assembly is installed on cap upper surface, the upper surface of lower case is being faced Recess forms the sealing ring mounting groove of an annular downwards at nearly left chamber and right chamber, is provided in the sealing ring mounting groove Sealing ring.

Further, above-mentioned sealing ring mounting groove is ellipse.And the inner-concave that the lower end of above-mentioned upper cover is covered upwardly It falls into and forms the second sealing ring mounting groove corresponding with the sealing ring mounting groove of lower case.In order to guarantee consistency, above-mentioned sealing Circle mounting groove and the second sealing ring mounting groove are used in conjunction with same sealing ring.

Further, above-mentioned signal pickup assembly includes terminal box, junction box cover plate, measuring mechanism and waterproof plug, Junction box cover plate is tightly locked screw by terminal box and is fixed in terminal box, and waterproof plug and the through-hole of terminal box side closely connect It connects, and measuring mechanism is then arranged in terminal box, and measuring mechanism is formed simultaneously the prison to left chamber's gear or right chamber gear It surveys.

In addition, increasing effective attaching space, an above-mentioned lower case generally cuboid knot for the convenience of installation Structure, and chamfering is formed at four angles, and the overall structure of the upper cover is identical as lower case.

Based on above structure, the feed liquor through-hole is arranged on the side wall of the long side of the rectangular parallelepiped structure of lower case, right Ying Di, the fluid through-hole out are arranged on the side wall of another long side of the rectangular parallelepiped structure of lower case.

In addition, left chamber's bearing includes left chamber's upper bearing (metal) and left chamber's lower bearing, left chamber's upper bearing (metal) and left chamber Room lower bearing is mutually socketed, and right chamber bearing then includes right chamber upper bearing (metal) and right chamber lower bearing, right chamber upper bearing (metal) and Right chamber lower bearing is also mutually socketed.

The utility model have the beneficial effect that the utility model by the way that sealing ring is arranged between lower case and upper cover, So that liquid will not be leaked in circulating flow timing, to ensure that the intracorporal fluid pressure of chamber, and then measurement ensure that Precision, and be square structure by lower case and upper cover design, the mounting area of flowmeter is increased effectively, ensure that liquid line The firmness and stability connecting with flowmeter, and the setting of special structure and the waterproof plug of signal pickup assembly, can have Effect prevents measuring mechanism from damaging or being influenced by extraneous factor, further ensures the measurement accuracy and accuracy of measuring mechanism.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of an embodiment of the present invention；

Fig. 2 is gear structure schematic diagram described in the utility model.

The meaning of appended drawing reference in figure:

1, terminal box tightly locks screw；2, junction box cover plate；3, terminal box；4, waterproof plug；5, flowmeter upper cover locking screw Silk；6, upper cover；7, right chamber bearing；7a, right chamber upper bearing (metal)；7b, right chamber lower bearing；8, right chamber gear；9, right chamber Gear pin；10, right chamber；11, sealing ring mounting groove；12, lower case；13, left chamber's bearing；13a, left chamber's upper bearing (metal)； 13b, left chamber's lower bearing；14, left chamber's gear；15, left chamber's gear pin；16, left chamber.

Specific embodiment

Specific introduce is made to the present invention below in conjunction with the drawings and specific embodiments.

Embodiment

Fig. 1 is the structural schematic diagram of an embodiment of the present invention.

Referring to Fig. 1, high sealing volumetric gear flow meter, including lower case 12, upper cover 6, left chamber's gear 14, right chamber Gear 8, left chamber's bearing 13, right chamber bearing 7 and signal pickup assembly.

In the present embodiment, lower case 12 is fixedly connected with upper cover 6 by 8 flowmeter upper cover lock screws 5, lower case 12 inside is formed with interconnected left chamber 16 and right chamber 10, and left chamber's gear 14 is set in left chamber 16, right Chamber gear 8 is arranged in right chamber 10, left chamber's gear 14 and the engagement connection of right chamber gear 8, and 13 He of left chamber's bearing Right chamber bearing 7 is then respectively embedded in the center of left chamber's gear 14 and right chamber gear 8, while in left chamber's bearing 13 and the right side The center of chamber bearing 7 has also been respectively embedded into left chamber's gear pin 15 and right chamber gear pin 9, left chamber's gear 14 and the right side The two sides of 8 engagement place of chamber gear are then respectively formed admission chamber and out sap cavity, are formed between one end and admission chamber of lower case 12 Feed liquor through-hole, the other end of lower case 12 then form out fluid through-hole with sap cavity out.Left chamber is being closed in the upper surface of lower case 12 16 and right chamber 10 at downwards recess form the sealing ring mounting groove 11 of an annular, and the lower end surface of upper cover 6 is then into upper cover 6 Portion is recessed to form second sealing ring mounting groove corresponding with the sealing ring mounting groove 11 of lower case 12, sealing ring mounting groove 11 and Two sealing ring mounting groove sealing rings are ellipse, and in the present embodiment, sealing ring mounting groove 11 and the installation of the second sealing ring Slot is used in conjunction with same sealing ring.

For the convenience of installation, increase effective attaching space, the generally rectangular parallelepiped structure of lower case 12, and four A angle forms chamfering, and the overall structure of upper cover 6 is identical as lower case.Based on the structure, feed liquor through-hole is arranged in lower case 12 Rectangular parallelepiped structure long side side wall on, accordingly, another length of the rectangular parallelepiped structure of lower case 12 is arranged in fluid through-hole out On the side wall on side.

In addition, in the present embodiment, signal pickup assembly is installed on 6 upper surface of upper cover, wherein signal pickup assembly includes Terminal box 3, junction box cover plate 2, measuring mechanism and waterproof plug 4, junction box cover plate 2 are tightly locked screw 1 by terminal box and are fixed on In terminal box 3, waterproof plug 4 is closely connect with the through-hole of 3 side of terminal box, and measuring mechanism is then arranged in terminal box 3, and Measuring mechanism is formed simultaneously the monitoring to left chamber's gear 14 or right chamber gear 8.

Fig. 2 gear structure schematic diagram described in the utility model.

As shown in Figure 2: left chamber's bearing 13 includes left chamber's upper bearing (metal) 13a and left chamber lower bearing 13b, axis in left chamber It holds 13a and left chamber lower bearing 13b is mutually socketed, and right chamber bearing 7 then includes right chamber upper bearing (metal) 7a and right chamber lower axle 7b, right chamber upper bearing (metal) 7a and right chamber lower bearing 7b is held also mutually to be socketed.

Liquid enters admission chamber from the feed liquor through-hole of lower case 12, under the action of fluid pressure, 14 He of left chamber's gear Right chamber gear 8 rotates, and liquid goes out sap cavity by going out fluid through-hole discharge from lower case 12, and during this, measuring mechanism is to a left side Chamber gear 14 or right chamber gear 8 are detected simultaneously, to obtain the number of teeth that unit time internal gear turns over, Jin Erhuan It is counted as fluid flow data output.

The basic principles and main features and advantage of the utility model have been shown and described above.The technical staff of the industry It should be appreciated that above-described embodiment does not limit the utility model in any form, it is all by the way of equivalent substitution or equivalent transformation Technical solution obtained, all falls in the protection scope of the utility model.

Claims (3)

1. high sealing volumetric gear flow meter, including lower case (12), upper cover (6), left chamber's gear (14), right chamber gear (8), left chamber's bearing (13), right chamber bearing (7) and signal pickup assembly, the lower case (12) and upper cover (6) are if pass through Mainstream meter upper cover lock screw (5) is fixedly connected, and the inside of lower case is formed with interconnected left chamber (16) and right chamber Room (10), and left chamber's gear (14) is set in left chamber (16), right chamber gear (8) setting is left in right chamber (10) Chamber gear (14) and right chamber gear (8) engagement connection, and left chamber's bearing (13) and right chamber bearing (7) are then respectively embedded into In left chamber's gear (14) and right chamber gear (8) center, while at the center of left chamber's bearing (13) and right chamber bearing (7) Also it has been respectively embedded into left chamber's gear pin (15) and right chamber gear pin (9), left chamber's gear (14) and right chamber gear (8) two sides of engagement place are then respectively formed admission chamber and out sap cavity, form feed liquor between one end and admission chamber of lower case (12) The other end of through-hole, lower case (12) then forms out fluid through-hole with sap cavity out, in addition, above-mentioned signal pickup assembly is installed on Cover (6) upper surface, which is characterized in that the upper surface of lower case (12) is being closed at left chamber (16) and right chamber (10) to recessed The sealing ring mounting groove (11) for forming an annular is fallen into, is provided with sealing ring in the sealing ring mounting groove (11), described is close Seal mounting groove (11) is ellipse, and the lower end of the upper cover (6), which faces upward, covers the inner recess formation and lower case of (6) (12) corresponding second sealing ring mounting groove of sealing ring mounting groove (11), and the sealing ring mounting groove and the second sealing ring Mounting groove is used in conjunction with same sealing ring,

In addition, the signal pickup assembly includes terminal box (3), junction box cover plate (2), measuring mechanism and waterproof plug (4), Junction box cover plate (2) is tightly locked screw (1) by terminal box and is fixed on terminal box (3), waterproof plug (4) and terminal box (3) one The through-hole of side closely connects, and measuring mechanism is then arranged in terminal box (3), and measuring mechanism is formed simultaneously to left chamber's gear (14) or the monitoring of right chamber gear (8),

And lower case (12) generally rectangular parallelepiped structure, and chamferings are formed at four angles, and the upper cover (6) Overall structure is identical as lower case.

2. high sealing volumetric gear flow meter according to claim 1, which is characterized in that the feed liquor through-hole setting On the side wall of the long side of the rectangular parallelepiped structure of lower case (12), accordingly, the fluid through-hole that goes out is arranged in lower case (12) Rectangular parallelepiped structure another long side side wall on.

3. high sealing volumetric gear flow meter according to claim 1, it is characterised in that: left chamber's bearing (13) Including left chamber's upper bearing (metal) (13a) and left chamber's lower bearing (13b), left chamber's upper bearing (metal) (13a) and left chamber's lower bearing (13b) Mutually socket, and right chamber bearing (7) then includes right chamber upper bearing (metal) (7a) and right chamber lower bearing (7b), right chamber upper bearing (metal) The also mutually socket of (7a) and right chamber lower bearing (7b).