CN217327663U

CN217327663U - Low-loss gear constant delivery pump suitable for large-range viscosity fluid

Info

Publication number: CN217327663U
Application number: CN202221048065.XU
Authority: CN
Inventors: 王传义; 李华荣
Original assignee: Shanghai Langhan Mechanical And Electrical Technology Co ltd
Current assignee: Shanghai Langhan Mechanical And Electrical Technology Co ltd
Priority date: 2022-05-05
Filing date: 2022-05-05
Publication date: 2022-08-30
Anticipated expiration: 2032-05-05

Abstract

The utility model discloses a low-loss gear constant delivery pump suitable for large-range viscosity fluid, which belongs to the technical field of constant delivery pumps, and particularly relates to a low-loss gear constant delivery pump suitable for large-range viscosity fluid, which comprises a sealed cabin main body, wherein the right side of the sealed cabin main body is connected with a bottom plate, the left side of the sealed cabin main body is connected with an upper plate, connecting components are arranged between the sealed cabin main body and the bottom plate as well as between the sealed cabin main body and the upper plate, a pump body is connected with the middle part of the right wall of the bottom plate, a sealing plate is arranged at the joint of the pump body and the bottom plate, the right side of the pump body is connected with a pump body top plate, a main shaft is connected inside the pump body top plate, and the device of the scheme is ensured to have excellent integral sealing performance through the common cooperation between the sealed cabin main body, the connecting components, the sealing plate, the main shaft, the auxiliary shaft, the main gear, the auxiliary gear, the first cavity and the second cavity can smoothly run without an independent bearing, reduce wearing and tearing, extension this scheme device life.

Description

Low-loss gear constant delivery pump suitable for large-range viscosity fluid

Technical Field

The utility model relates to a constant delivery pump technical field specifically is a low-loss gear constant delivery pump suitable for viscosity fluid on a large scale.

Background

The gear constant delivery pump is a constant delivery element widely used in the current fluid industry and has the characteristics of continuous output, stability and accuracy. The present quantitative gear pump is basically composed of a quantitative cavity, a pair of quantitative gears, a driving shaft, a bearing, a seal, etc., conventionally, different gear pump precision systems are adopted according to the viscosity of the fluid to be metered, the characteristics of the filler, etc., the precision is low, and the gear pump can be used for quantitative determination of the fluid with higher viscosity (but the fluid with the viscosity over 1,000,000cps cannot be used), the precision requirement of the quantitative determination of the fluid with low viscosity is generally higher for the precision of the gear pump (the fluid with the viscosity too low, such as alcohol, etc., cannot be used), however, with the development of the fluid and the application industry thereof, more and more additive materials (fillers) are introduced into the fluid to obtain better insulation, conductivity, weather resistance, fluidity, shape stability after curing, etc.

In the face of the increasingly emerging dosing requirements of functional fluids, the conventional gear pumps often have the situations of seizure, excessive wear, gear pump blockage caused by seizure or increased resistance, shaft breakage and the like, so that other types of dosing pumps such as screw pumps, plunger pumps and the like are forced to be used, however, the screw pumps have large volumes, the output pressure does not exceed 20bar, stators need to be replaced irregularly, and the plunger pumps cannot continuously dose and also have the situations of excessive wear.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a low-loss gear constant delivery pump suitable for viscosity fluid on a large scale, in the face of proposing among the above-mentioned background art when the ration requirement of functional fluid that emerges increasingly, traditional gear pump often appears the card and dies, wearing and tearing are too fast, because the gear pump jamming that card dies or resistance increase leads to, situations such as disconnected axle, thereby compelled to use other types of constant delivery pump such as screw pump, plunger pump etc., however the screw pump is bulky, output pressure is no longer than 20bar, the stator needs the unscheduled change, but the plunger pump can not continuous ration output, and also have the problem of the too fast situation of wearing and tearing equally.

In order to achieve the above object, the utility model provides a following technical scheme: a low-loss gear constant delivery pump suitable for fluids with large-range viscosity comprises a sealed cabin main body, wherein a bottom plate is connected to the right side of the sealed cabin main body, an upper plate is connected to the left side of the sealed cabin main body, a connecting assembly is arranged between the sealed cabin main body and the bottom plate and between the sealed cabin main body and the upper plate, the bottom plate and the upper plate are connected through the connecting assembly, a pump body is connected to the middle of the right wall of the bottom plate, a sealing plate is installed at the connecting position of the pump body and the bottom plate, a pump body top plate is connected to the right side of the pump body, a main shaft is connected to the pump body top plate and penetrates through the pump body top plate and the inside of the pump body and extends into the sealed cabin main body, a first cavity and a second cavity are formed in the sealed cabin main body, a main gear is connected to the first cavity, a secondary gear is connected to the inside of the second cavity, and is meshed with the secondary gear, the inner part of the main gear is connected with the main shaft, the inner part of the auxiliary gear is connected with an auxiliary shaft, and the auxiliary shaft is positioned in the sealed cabin main body.

Preferably, coupling assembling includes eight first bolts, eight inside first bolt runs through bottom plate, upper plate and sealed cabin main part, first screw has all been seted up between bottom plate, upper plate and the sealed cabin main part and eight first bolts.

Preferably, the bottom plate, the upper plate and the inside of the sealed cabin main body are all provided with two positioning pin holes, the bottom plate, the upper plate and the inside of the sealed cabin main body are all in the same horizontal position, and positioning pins are installed inside the two positioning pin holes.

Preferably, four second screw holes are formed in the same horizontal position of the pump body and the pump body top plate, and second bolts are connected to the inner portions of the four second screw holes.

Preferably, a sealing gasket is arranged at the joint of the sealing plate and the pump body.

Compared with the prior art, the beneficial effects of the utility model are that: through the common cooperation between sealed cabin main part, coupling assembling, closing plate, main shaft, countershaft, master gear, pinion, first cavity and the second cavity, guarantee that this scheme device has good whole leakproofness, and do not need solitary bearing can be in the same direction as smooth operation, reduce wearing and tearing, extension this scheme device life.

Drawings

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

FIG. 2 is a schematic view of the internal structure of the sealed cabin of the present invention;

fig. 3 is a schematic top view of the spindle of the present invention;

fig. 4 is a schematic side view of the auxiliary gear of the present invention.

In the figure: 1. a base plate; 2. a capsule body; 3. an upper plate; 4. a positioning pin hole; 5. a first bolt; 6. a pump body; 7. a pump body top plate; 8. a main shaft; 9. a second screw hole; 10. a first cavity; 11. a second cavity; 12. a main gear; 13. a pinion gear; 14. a secondary shaft.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only 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.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "sleeved/connected", "connected", and the like are to be understood in a broad sense, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b):

referring to fig. 1-4, the present invention provides a technical solution: a low-loss gear constant delivery pump suitable for fluids with large-scale viscosity is characterized in that a high-homogeneity steel material is selected, a digital CAD is adopted for designing gear pump parts, the tooth profile and a cavity are guaranteed to be designed with high precision through CAD, structural movement interference and abrasion are avoided, the tolerance fit range is reduced, particularly clearance fit of a kinematic pair is achieved, high-precision numerical control machining and post-heat treatment (part deformation after heat treatment is strictly controlled) and surface treatment (numerical control fine grinding) are adopted, strict assembly is achieved, a bearing is not needed, the pump comprises a sealed cabin main body 2, a bottom plate 1 is connected to the right side of the sealed cabin main body 2, an upper plate 3 is connected to the left side of the sealed cabin main body 2, a connecting assembly is arranged between the sealed cabin main body 2 and the bottom plate 1 and the upper plate 3, the sealed cabin main body 2 is connected with the bottom plate 1 and the upper plate 3 through the connecting assembly, the utility model discloses a pump body, including bottom plate 1, pump body 6, seal plate, first cavity 10 and second cavity 11 have been seted up to sealed cabin main part 2, first cavity 10 internal connection has master gear 12, second cavity 11 internal connection has pinion 13, master gear 12 meshes with pinion 13 mutually, the inside main gear 8 that is connected with of master gear 12, pinion 14 internal connection has countershaft 14, countershaft 14 is located inside sealed cabin main part 2, pump body 6 installs the closing plate with the junction of bottom plate 1, pump body 6 right side is connected with pump body roof 7, pump body roof 7 internal connection has main shaft 8, main shaft 8 runs through inside pump body roof 7, the pump body 6 and extends to inside sealed cabin main part 2, sealed cabin main part 2 is inside.

The connecting assembly comprises eight first bolts 5 and eight first bolts 5, the first bolts 5 penetrate through the bottom plate 1, the upper plate 3 and the sealing cabin main body 2, first screw holes are formed between the bottom plate 1, the upper plate 3 and the sealing cabin main body 2 and the eight first bolts 5, two positioning pin holes 4 are formed in the bottom plate 1, the upper plate 3 and the sealing cabin main body 2, the two positioning pin holes 4 formed in the bottom plate 1, the upper plate 3 and the sealing cabin main body 2 are in the same horizontal position, positioning pins are arranged in the positioning pin holes 4, four second screw holes 9 and four second bolts are formed in the pump body 6 and the pump body top plate 7 in the same horizontal position, and sealing gaskets are arranged at the joints of the sealing plate and the pump body 6.

The working principle is as follows: the main shaft 8 inserts the power take off end of external motor, then main shaft 8 begins to rotate, pivoted main shaft 8 drives master gear 12 and rotates, master gear 12 meshes with pinion 13 mutually, pivoted master gear 12 drives pinion 13 and rotates, pivoted pinion 13 drives countershaft 14 and rotates, when installing each structure of this scheme device inside, at first with sealed cabin main part 2, bottom plate 1 and upper plate 3 are through first bolt 5, first screw, the cooperation jointly between locating pin hole 4 and the locating pin is connected, when carrying out erection joint with the pump body 6 and bottom plate 1, seal ring and closing plate are installed in advance, guarantee overall structure's leakproofness.

Having shown and described the basic principles and principal features of the invention and advantages thereof, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof; the present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A low-loss gear constant delivery pump suitable for fluids with a large range of viscosity, comprising a capsule body (2), characterized in that: the right side of the sealed cabin main body (2) is connected with a bottom plate (1), the left side of the sealed cabin main body (2) is connected with an upper plate (3), a connecting assembly is arranged between the sealed cabin main body (2) and the bottom plate (1) and between the sealed cabin main body (2) and the upper plate (3), the sealed cabin main body (2) is connected with the bottom plate (1) and the upper plate (3) through the connecting assembly, the middle part of the right wall of the bottom plate (1) is connected with a pump body (6), a sealing plate is arranged at the connecting part of the pump body (6) and the bottom plate (1), the right side of the pump body (6) is connected with a pump body top plate (7), a main shaft (8) is connected inside the pump body top plate (7), the main shaft (8) penetrates through the inside of the pump body top plate (7) and the pump body (6) and extends into the sealed cabin main body (2), a first cavity (10) and a second cavity (11) are arranged inside the sealed cabin main body (2), the sealing cabin is characterized in that a main gear (12) is connected to the inside of the first cavity (10), an auxiliary gear (13) is connected to the inside of the second cavity (11), the main gear (12) is meshed with the auxiliary gear (13), the inside of the main gear (12) is connected with the main shaft (8), an auxiliary shaft (14) is connected to the inside of the auxiliary gear (13), and the auxiliary shaft (14) is located inside the sealing cabin main body (2).

2. A low loss gear constant displacement pump suitable for use with a wide range of viscosity fluids, as defined in claim 1, wherein: coupling assembling includes eight first bolt (5), eight inside bottom plate (1), upper plate (3) and sealed cabin main part (2) are run through in first bolt (5), first screw has all been seted up between bottom plate (1), upper plate (3) and sealed cabin main part (2) and eight first bolt (5).

3. A low loss gear constant displacement pump suitable for use with a wide range of viscosity fluids, as defined in claim 1, wherein: two positioning pin holes (4) are formed in the bottom plate (1), the upper plate (3) and the sealing cabin main body (2), two positioning pin holes (4) formed in the bottom plate (1), the upper plate (3) and the sealing cabin main body (2) are located on the same horizontal position, and positioning pins are arranged in the positioning pin holes (4).

4. A low loss gear constant displacement pump suitable for use with a wide range of viscosity fluids, as defined in claim 1, wherein: the pump body (6) and the pump body top plate (7) are arranged at the same horizontal position and are provided with four second screw holes (9), and the second screw holes (9) are internally connected with second bolts.

5. A low loss gear fixed displacement pump suitable for use with a wide range of viscosity fluids, according to claim 1, wherein: and a sealing washer is arranged at the joint of the sealing plate and the pump body (6).