CN212803735U

CN212803735U - Oil pump body

Info

Publication number: CN212803735U
Application number: CN202021261932.9U
Authority: CN
Inventors: 周锐
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-07-01
Filing date: 2020-07-01
Publication date: 2021-03-26
Anticipated expiration: 2030-07-01

Abstract

An oil pump body comprises a pump body, an impeller shield, an impeller and a pump cover; the pump body is made of plastic and is provided with a pump cavity with one open side, an oil inlet pipeline communicated with one side of the pump cavity and an oil outlet pipeline communicated with the other side of the pump cavity; the impeller shield is made of metal and is fixed in the pump cavity, an oil inlet communicated with the oil inlet pipeline is formed in the side wall of one side of the impeller shield, and an oil outlet communicated with the oil outlet pipeline is formed in the side wall of the other side of the impeller shield; an impeller containing cavity is formed in the impeller shield, and the impeller is rotatably arranged in the impeller containing cavity; the pump cover is fixedly covered at the opening end of the pump cavity. The utility model discloses the oil pump body has advantages such as the structure is reliable, light in weight, with low costs, application scope are wide.

Description

Oil pump body

Technical Field

The utility model relates to an oil pump technical field, concretely relates to oil pump body.

Background

In the prior art, an oil pump body is generally formed by integrally casting metal materials such as iron and the like, so that the oil pump body is high in manufacturing cost, heavy in weight, inconvenient to carry and use, and simultaneously not suitable for conveying oils with high quality requirements such as edible oil and the like, and is to be improved.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an oil pump body that the structure is reliable, light in weight, with low costs, application scope is wide.

For solving the technical problem, the utility model discloses the technical scheme who adopts does:

an oil pump body comprises a pump body, an impeller shield, an impeller and a pump cover; the pump body is made of plastic and is provided with a pump cavity with one open side, an oil inlet pipeline communicated with one side of the pump cavity and an oil outlet pipeline communicated with the other side of the pump cavity; the impeller shield is made of metal and is fixed in the pump cavity, an oil inlet communicated with the oil inlet pipeline is formed in the side wall of one side of the impeller shield, and an oil outlet communicated with the oil outlet pipeline is formed in the side wall of the other side of the impeller shield; an impeller containing cavity is formed in the impeller shield, and the impeller is rotatably arranged in the impeller containing cavity; the pump cover is fixedly covered at the opening end of the pump cavity.

Furthermore, the pump cover comprises a cover body fixedly covered at the opening end of the pump cavity, an installation and maintenance opening is formed in the position, corresponding to the impeller cavity, of the cover body in a hollow mode, and the pump cover further comprises a cover plate used for covering the installation and maintenance opening in a sealing mode.

Further, the cover body is made of plastic, and the cover plate is made of metal.

Further, be equipped with on the surface of lid body and wind the annular groove that the installation access hole periphery set up, the embedded sealing ring that is equipped with of annular groove, the apron closing cap in the outside of installation access hole and with the sealed laminating of sealing ring.

Further, an annular step portion arranged around the periphery of the annular groove is further arranged on the outer surface of the cover body, a plurality of first fixing holes are distributed on the annular step portion along the circumferential direction, a plurality of second fixing holes are distributed on the outer edge portion of the cover plate along the circumferential direction, and the outer edge portion of the cover plate is embedded into the annular step portion and is fixedly connected with the annular step portion through screws penetrating into the second fixing holes and the first fixing holes.

Further, the pump chamber is equipped with along its circumference concave and is used for supplying the outer step portion along the embedding of lid body, the concave draw-in groove that is equipped with on the step portion, the draw-in groove embedded be equipped with be used for with the sealing washer of the outer sealed laminating of edge of lid body.

Furthermore, the shape of the cover body is matched with the shape of the opening end of the pump cavity, a plurality of first fixing hole sites are arranged on the pump cavity along the inner side of the periphery of the pump cavity, and a plurality of second fixing hole sites corresponding to the first fixing hole sites are arranged on the cover body.

Furthermore, a mounting hole for the driving shaft of the impeller to penetrate through is formed in the bottom wall of the pump cavity corresponding to the impeller cavity, and the mounting hole is arranged in a manner of deviating from the center of the impeller cavity.

Furthermore, the bottom wall of the pump cavity is convexly provided with a mounting hole site matched with the shape of the impeller shield, and the impeller shield is embedded into the mounting hole site and is integrally injection-molded with the impeller shield.

Furthermore, the impeller shield is hollow cylindrical, and the oil inlet and the oil outlet are symmetrically formed in the side walls of the two sides of the impeller shield.

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model discloses the main part of the oil pump body adopts the plastics material to make, consequently on the one hand greatly reduced the cost of manufacture of oil pump, be favorable to economic saving, on the other hand has effectively alleviateed the whole weight of oil pump, makes it carry and the operation is used and all relaxed more convenient, simultaneously, the utility model discloses design the metal impeller guard shield that is used for protecting the pump body to avoid the impeller scratch again in the pump chamber, consequently can ensure the structural reliability of the pump body in the course of the work. Furthermore, the utility model discloses the design of the oil pump body on the selection material satisfies the transport to the higher oil of quality requirement such as edible oil more easily, and application scope is wider.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

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

FIG. 2 is a schematic view of the cover plate of the present invention in an opened state;

fig. 3 is a schematic diagram of the explosion structure of the present invention;

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments. 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.

As shown in fig. 1 to 3, an oil pump body includes a pump body 1, an impeller shroud 2, an impeller 3, and a pump cover 4. The pump body 1 is made of plastic and has a pump chamber 11 with one open side, an oil inlet pipe 12 communicated with one side of the pump chamber 11, and an oil outlet pipe 13 communicated with the other side of the pump chamber 11. The impeller shroud 2 is made of metal and fixed in the pump cavity 11, an oil inlet 21 communicated with the oil inlet pipeline 12 is arranged on one side wall of the impeller shroud 2, and an oil outlet 22 communicated with the oil outlet pipeline 13 is arranged on the other side wall of the impeller shroud 2. An impeller housing 20 is formed in the impeller shroud 2, and the impeller 3 is rotatably mounted in the impeller housing 20. The pump cover 4 is fixedly covered on the opening end of the pump cavity 11.

Specifically, the pump cover 4 includes that the fixed lid closes the lid body 41 at the pump chamber 11 open end, and lid body 41 is the plastics material, and the position fretwork that corresponds impeller appearance chamber 20 on the lid body 41 is equipped with installation access hole 411, and pump cover 4 still includes the apron 42 that is used for closing cap installation access hole 411. Wherein, the setting of installation access hole 411 can make things convenient for impeller 3's dismouting and maintenance.

Specifically, be equipped with the annular groove 412 around installation access hole 411 periphery setting on the surface of lid body 41, the embedded sealing ring 5 that is equipped with of annular groove 412, apron 42 closing cap in the outside of installation access hole 411 and with the sealed laminating of sealing ring 5 to this prevents that fluid in the pump chamber 11 from overflowing from the junction of apron 42 and installation access hole 411. In order to ensure the sealing reliability between the cover plate 42 and the seal ring 5, the cover plate 42 is preferably made of a metal material having a certain hardness, and the cover plate 42 is preferably made of iron.

Specifically, an annular step portion 413 arranged around the periphery of the annular groove 412 is further arranged on the outer surface of the cover body 41, a plurality of first fixing holes 4131 are circumferentially distributed on the annular step portion 413, a plurality of second fixing holes 421 are circumferentially distributed on the outer edge portion of the cover plate 42, and the outer edge portion of the cover plate 42 is embedded into the annular step portion 413 and is fixedly connected with the annular step portion 413 through screws penetrating through the second fixing holes 421 and the first fixing holes 4131.

Specifically, the pump cavity 11 is concavely provided with a step portion 111 along the peripheral edge thereof, the step portion 111 is used for embedding the outer edge of the cover body 41, a clamping groove 112 is concavely provided on the step portion 111, and a sealing ring 6 which is used for being in sealing fit with the outer edge of the cover body 41 is embedded in the clamping groove 112, so that oil in the pump cavity 11 is prevented from overflowing from the joint of the cover body 41.

Specifically, the shape of the cover body 41 is matched with the shape of the open end of the pump chamber 11, the pump chamber 11 is provided with a plurality of first fixing hole locations 113 along the inner side of the periphery thereof, the cover body 41 is provided with a plurality of second fixing hole locations 414 corresponding to the first fixing hole locations 113, and the second fixing hole locations 414 are connected with the first fixing hole locations 113 through screws, so that the cover body 41 is fixedly covered on the open end of the pump chamber 11.

Specifically, a mounting hole 114 for a driving shaft of the impeller 3 to penetrate is formed in a portion of the bottom wall of the pump chamber 11 corresponding to the impeller accommodating chamber 20, and the mounting hole 114 is arranged to deviate from the center of the impeller accommodating chamber 20.

Preferably, the bottom wall of the pump chamber 11 is protruded with a mounting hole 115 having a shape matching that of the impeller shroud 2, and the impeller shroud 2 is inserted into the mounting hole 115 and injection-molded integrally therewith, so that the impeller shroud 2 is fixed in the pump chamber 11.

Specifically, the impeller shroud 2 is hollow cylindrical, and the oil inlet 21 and the oil outlet 22 are symmetrically formed in the side walls of the two sides of the impeller shroud 2. And preferably, the impeller shield 2 is an iron shield, which can meet the strength requirement.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. An oil pump body which characterized in that:

comprises a pump body, an impeller shield, an impeller and a pump cover;

the pump body is made of plastic and is provided with a pump cavity with one open side, an oil inlet pipeline communicated with one side of the pump cavity and an oil outlet pipeline communicated with the other side of the pump cavity;

the impeller shield is made of metal and is fixed in the pump cavity, an oil inlet communicated with the oil inlet pipeline is formed in the side wall of one side of the impeller shield, and an oil outlet communicated with the oil outlet pipeline is formed in the side wall of the other side of the impeller shield;

an impeller containing cavity is formed in the impeller shield, and the impeller is rotatably arranged in the impeller containing cavity;

the pump cover is fixedly covered at the opening end of the pump cavity.

2. The oil pump body of claim 1, wherein: the pump cover comprises a cover body fixedly covered at the opening end of the pump cavity, an installation and maintenance opening is hollowed in the position, corresponding to the impeller cavity, of the cover body, and the pump cover further comprises a cover plate used for covering the installation and maintenance opening.

3. The oil pump body of claim 2, wherein: the cover body is made of plastic, and the cover plate is made of metal.

4. An oil pump body according to claim 2 or 3, characterized in that: the outer surface of the cover body is provided with an annular groove which is wound around the periphery of the installation and maintenance port, a sealing ring is embedded in the annular groove, and the cover plate is covered in the outer side of the installation and maintenance port and is in sealing fit with the sealing ring.

5. The oil pump body of claim 4, wherein: the outer surface of the cover body is further provided with an annular step portion arranged around the periphery of the annular groove, a plurality of first fixing holes are distributed on the annular step portion along the circumferential direction, a plurality of second fixing holes are distributed on the outer edge portion of the cover plate along the circumferential direction, and the outer edge portion of the cover plate is embedded into the annular step portion and is fixedly connected with the annular step portion through screws penetrating through the second fixing holes and the first fixing holes.

6. An oil pump body according to claim 2 or 3, characterized in that: the pump chamber is equipped with along its week along concave being used for supplying the step portion of the outer edge embedding of lid body, the step portion goes up the concave draw-in groove that is equipped with, the draw-in groove embedded be equipped with be used for with the sealing washer of the outer edge sealing laminating of lid body.

7. An oil pump body according to claim 2 or 3, characterized in that: the shape of the cover body is matched with the shape of the opening end of the pump cavity, a plurality of first fixing hole positions are arranged on the pump cavity along the inner side of the periphery of the pump cavity, and a plurality of second fixing hole positions corresponding to the first fixing hole positions are arranged on the cover body.

8. An oil pump body according to claim 1, 2 or 3, characterized in that: and a mounting hole for the driving shaft of the impeller to penetrate is formed in the bottom wall of the pump cavity corresponding to the impeller cavity, and the mounting hole is arranged by deviating from the center of the impeller cavity.

9. An oil pump body according to claim 1, 2 or 3, characterized in that: and the bottom wall of the pump cavity is convexly provided with a mounting hole site matched with the impeller shield in shape, and the impeller shield is embedded into the mounting hole site and is integrally injection-molded with the impeller shield.

10. The oil pump body of claim 9, wherein: the impeller shield is hollow cylindrical, and the oil inlet and the oil outlet are symmetrically formed in the side walls of the two sides of the impeller shield.