CN211474427U

CN211474427U - Gas-liquid co-suction type gear pump

Info

Publication number: CN211474427U
Application number: CN202020029461.2U
Authority: CN
Inventors: 王根祖
Original assignee: Jiangsu Pumen Electronic Co ltd
Current assignee: Jiangsu Pumen Electronic Co ltd
Priority date: 2020-01-07
Filing date: 2020-01-07
Publication date: 2020-09-11
Anticipated expiration: 2030-01-07

Abstract

The utility model discloses a gas-liquid co-suction type gear pump, which comprises a pump body, first end cover and second end cover be sealing connection respectively in the both sides of the pump body, driving gear and driven gear are installed through the bearing rotation to the inboard of the pump body, the motor shaft is installed through the oil blanket rotation in the middle part of first end cover, constitute between the inner wall of the pump body and driving gear and the one side of driven gear meshing and inhale the chamber, constitute the discharge chamber between the inner wall of the pump body and the opposite side of driving gear and driven gear meshing, the pump body has the feed liquor pipe with inhaling the relative one side intercommunication in chamber, the pump body has the fluid-discharge tube with the relative one side intercommunication in discharge chamber, the lateral part symmetric connection of the pump body has inlet branch, the clearance position intercommunication of a set of inlet branch and driving gear and the pump body, another. The utility model discloses simple convenient realization gas-liquid inhales altogether and subsequent mixture, the mixture of the solution of being convenient for and gas.

Description

Gas-liquid co-suction type gear pump

Technical Field

The utility model relates to a gear pump technical field, concretely relates to gas-liquid co-suction type gear pump.

Background

The gear pump is a rotary pump which can transfer liquid or pressurize it by means of the change and movement of working volume formed between pump cylinder and meshed gear, and is formed from two gears, pump body and front and rear covers, when the gears are rotated, the volume of space of gear disengagement side is changed from small to large, and formed into vacuum to suck liquid, and the volume of space of gear meshing side is changed from large to small to squeeze liquid into pipeline, and the suction cavity and discharge cavity are separated by means of meshing line of two gears, and the pressure of discharge outlet of gear pump is completely dependent on the resistance of pump outlet.

The existing gear pump is generally suitable for various liquids which have no corrosiveness, no solid particles and lubricating capability in the working process, but in dissolved gas and aeration, the solution and the gas are generally required to be co-absorbed and then mixed so as to be convenient for subsequent use, while the existing gear pump is lack of gas-liquid co-absorption and subsequent mixing so as to influence the use.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a formula gear pump is inhaled altogether to gas-liquid, simple convenient realization gas-liquid inhale altogether and subsequent mixture, the solution of being convenient for and gaseous mixture to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a gas-liquid co-suction type gear pump comprises a pump body, a first end cover and a second end cover, wherein the first end cover and the second end cover are respectively connected to two sides of the pump body in a sealing mode, a driving gear and a driven gear are rotatably installed on the inner side of the pump body through bearings and are meshed with each other, a motor shaft is rotatably installed in the middle of the first end cover through an oil seal, one end of the motor shaft is connected with the driving gear, the other end of the motor shaft is connected with a coupler, a suction cavity is formed between the inner wall of the pump body and one side, meshed with the driving gear and the driven gear, of the driving gear and the driven gear, a discharge cavity is formed between the inner wall of the pump body and the other side, opposite to the discharge cavity, of the pump body is communicated with a liquid inlet pipe, one side, opposite to the discharge cavity, of, one set of the air inlet branch pipe is communicated with the gap position of the driving gear and the pump body, the other set of the air inlet branch pipe is communicated with the gap position of the driven gear and the pump body, the two sets of the air inlet branch pipes are jointly connected with an air inlet main pipe, and the pump body is connected with a sealing ring with the gap position of the driving gear and the gap position of the driven gear in a splicing manner.

Preferably, the lateral part of first end cover is provided with outward extension portion, bolt hole has been seted up to the lateral part of outward extension portion.

Preferably, the outer wall of the driving gear and the outer wall of the driven gear are in clearance fit with the inner wall of the pump body, and the transmission ratio of the driving gear to the driven gear is 1: 1.

Preferably, the oil seal sleeve is arranged on the outer side of the motor shaft, and the diameter of one side, close to the coupler, of the motor shaft is 10mm-15mm smaller than the diameter of one side, close to the driving gear, of the motor shaft.

Preferably, the liquid inlet pipe and the liquid discharge pipe are symmetrically arranged relative to the pump body, and a filter screen is installed at the end part of the liquid inlet pipe.

Preferably, two groups of the air inlet branch pipes are symmetrically arranged relative to the pump body.

To sum up, owing to adopted above-mentioned technique, the beneficial effects of the utility model are that:

the utility model discloses in, through linking to each other shaft coupling and outside motor, utilize the motor to drive the motor shaft and rotate, the rotation of motor shaft drives the driving gear and rotates, the rotation of driving gear drives driven gear and rotates, driving gear and driven gear throw off the local vacuum that forms of meshing, liquid is inhaled the suction chamber in the pump body, make liquid along the tooth space position of driving gear and driven gear, and suck gas at the tooth space position of each gear, make liquid and gaseous inboard and the mixture of inhaling the pump body, divide two tunnel entering discharge chambers, and discharge through the fluid-discharge tube.

The utility model discloses in, through the tip installation filter screen at the feed liquor pipe, filter liquid, two sets of inlet manifold that set up through the symmetry are connected with driving gear and driven gear's lateral part respectively, breathe in when realizing both sides for outside gas gets into inlet manifold from the female pipe that admits air, and then with liquid contact, better realization is mixed.

Drawings

Fig. 1 is an axial view of the present invention;

FIG. 2 is a schematic side cross-sectional view of the present invention;

fig. 3 is a schematic view of a partial structure section of the liquid inlet pipe of the present invention.

In the figure: 1. a pump body; 2. a first end cap; 3. a second end cap; 4. a driving gear; 5. a driven gear; 6. oil sealing; 7. a motor shaft; 8. a coupling; 9. a suction chamber; 10. a discharge chamber; 11. a liquid inlet pipe; 12. a liquid discharge pipe; 13. an intake branch pipe; 14. an extension portion; 15. bolt holes; 16. a filter screen; 17. a main air inlet pipe; 18. and (5) sealing rings.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the equipment or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to the specific situation of the specification.

The utility model provides a gas-liquid co-suction type gear pump as shown in figures 1-3, which comprises a pump body 1, a first end cover 2 and a second end cover 3, wherein the first end cover 2 and the second end cover 3 are respectively connected with two sides of the pump body 1 in a sealing way, the side part of the first end cover 2 is provided with an external extension part 14, the side part of the external extension part 14 is provided with a bolt hole 15, the external extension part 14 is matched with the bolt hole 15 to facilitate the butt joint and installation of an external driving motor, the inner side of the pump body 1 is rotatably provided with a driving gear 4 and a driven gear 5 through bearings, the outer wall of the driving gear 4 and the outer wall of the driven gear 5 are in clearance fit with the inner wall of the pump body 1, the transmission ratio of the driving gear 4 to the driven gear 5 is 1:1, the driving gear 4 is meshed with the driven gear 5, the middle part of the, the diameter of one side, close to the coupler 8, of the motor shaft 7 is 10mm-15mm smaller than that of one side, close to the driving gear 4, of the motor shaft 7, one end of the motor shaft 7 is connected with the driving gear 4, the other end of the motor shaft 7 is connected with the coupler 8, and the coupler 8 is conveniently connected with the output end of an external driving motor;

referring to fig. 1 and 2, a suction cavity 9 is formed between the inner wall of a pump body 1 and one side where a driving gear 4 and a driven gear 5 are engaged, a discharge cavity 10 is formed between the inner wall of the pump body 1 and the other side where the driving gear 4 and the driven gear 5 are engaged, one side of the pump body 1 opposite to the suction cavity 9 is communicated with a liquid inlet pipe 11, one side of the pump body 1 opposite to the discharge cavity 10 is communicated with a liquid discharge pipe 12, the liquid inlet pipe 11 and the liquid discharge pipe 12 are symmetrically arranged relative to the pump body 1, a filter screen 16 is installed at the end of the liquid inlet pipe 11, the filter screen 16 is used for filtering the entering liquid, the side of the pump body 1 is symmetrically connected with air inlet branch pipes 13, two sets of air inlet branch pipes 13 are symmetrically arranged relative to the pump body 1, one set of air inlet branch pipes 13 is communicated with a gap between the driving gear 4 and the pump body 1, the other set of air, and a sealing ring 18 is glued at the gap position between the pump body 1 and the driving gear 4 and the driven gear 5.

The working principle is as follows: when the pump is used, the coupler 8 is connected with an external motor, the external motor is fixed by matching the extension part 14 with the bolt hole 15, the motor drives the motor shaft 7 to rotate, the rotation of the motor shaft 7 drives the driving gear 4 to rotate, the rotation of the driving gear 4 drives the driven gear 5 to rotate, a local vacuum is formed at the disengaged position of the driving gear 4 and the driven gear 5, liquid is sucked into the suction cavity 9 in the pump body 1, the liquid is sucked into the inner side of the pump body 1 and mixed along the inter-tooth positions of the driving gear 4 and the driven gear 5, and gas is sucked into the inter-tooth positions of the gears, so that the liquid and the gas are sucked into the inner side of the pump body 1 and mixed, enter the discharge cavity 10 in two ways and are discharged through the liquid discharge;

through the tip installation filter screen 16 at feed liquor pipe 11, filter liquid, two sets of inlet branch 13 that set up through the symmetry are connected with driving gear 4 and driven gear 5's lateral part respectively, inhale when realizing both sides for outside gas gets into inlet branch 13 from the main pipe 17 that admits air, and then with liquid contact, better realization mixes.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

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.

Claims

1. The utility model provides a gas-liquid co-suction gear pump, includes the pump body (1), first end cover (2) and second end cover (3), its characterized in that: the pump is characterized in that the first end cover (2) and the second end cover (3) are respectively connected to two sides of the pump body (1) in a sealing mode, a driving gear (4) and a driven gear (5) are installed on the inner side of the pump body (1) in a rotating mode through bearings, the driving gear (4) is meshed with the driven gear (5), a motor shaft (7) is installed on the middle of the first end cover (2) in a rotating mode through an oil seal (6), one end of the motor shaft (7) is connected with the driving gear (4), the other end of the motor shaft (7) is connected with a coupler (8), a suction cavity (9) is formed between the inner wall of the pump body (1) and one side where the driving gear (4) is meshed with the driven gear (5), a discharge cavity (10) is formed between the inner wall of the pump body (1) and the other side where the driving gear (4) is meshed with the driven gear (5), and a liquid inlet pipe, the utility model discloses a pump body, including the pump body (1) and inhale chamber (9) relative one side intercommunication and have fluid-discharge tube (12), the lateral part symmetric connection of the pump body (1) has air intake branch pipe (13), and is a set of air intake branch pipe (13) and the clearance position intercommunication of driving gear (4) and the pump body (1), another group air intake branch pipe (13) and the clearance position intercommunication of driven gear (5) and pump body (1), two sets of air intake branch pipe (13) are connected with female pipe (17) that admits air jointly, the pump body (1) splices with the clearance position of driving gear (4) and driven gear (5) has sealing washer (18).

2. A gas-liquid co-suction type gear pump according to claim 1, wherein: the lateral part of first end cover (2) is provided with outward extension portion (14), bolt hole (15) have been seted up to the lateral part of outward extension portion (14).

3. A gas-liquid co-suction type gear pump according to claim 1, wherein: the outer wall of the driving gear (4) and the outer wall of the driven gear (5) are in clearance fit with the inner wall of the pump body (1), and the transmission ratio of the driving gear (4) to the driven gear (5) is 1: 1.

4. A gas-liquid co-suction type gear pump according to claim 1, wherein: the oil seal (6) is sleeved on the outer side of the motor shaft (7), and the diameter of one side, close to the coupler (8), of the motor shaft (7) is smaller than the diameter of one side, close to the driving gear (4), of the motor shaft (7) by 10-15 mm.

5. A gas-liquid co-suction type gear pump according to claim 1, wherein: the liquid inlet pipe (11) and the liquid discharge pipe (12) are symmetrically arranged relative to the pump body (1), and a filter screen (16) is installed at the end part of the liquid inlet pipe (11).

6. A gas-liquid co-suction type gear pump according to claim 1, wherein: the two groups of air inlet branch pipes (13) are symmetrically arranged relative to the pump body (1).