CN214247552U

CN214247552U - Brushless fuel pump of gasoline engine

Info

Publication number: CN214247552U
Application number: CN202023092639.7U
Authority: CN
Inventors: 朱志杰
Original assignee: Ruian Jieheng Auto Parts Co ltd
Current assignee: Ruian Jieheng Auto Parts Co ltd
Priority date: 2020-12-21
Filing date: 2020-12-21
Publication date: 2021-09-21
Anticipated expiration: 2030-12-21

Abstract

The utility model discloses a brushless fuel pump of gasoline engine, including shell and circular slab, the top outer wall rigid coupling of shell has the circular slab, sealing device is installed to the inside top of shell. This brushless fuel pump of gasoline engine, through the outer rotor shell, the magnet steel, the rotor shaft, the sealing washer, the oil pump upper cover, first bolt, go out mutually supporting between oil pipe and the electricity control room isotructure, can fix oil pump upper cover and circular slab through first bolt, thereby fix the sealing washer in the inside top of shell through the oil pump upper cover, and then improved the leakproofness, through the diaphragm, the inner cup, a spring, the impeller shell, the otter board, the oil pump bottom cover, the rubber pad, mutually supporting between second bolt and the L shaped plate isotructure, can fix oil pump bottom cover and L shaped plate through the second bolt, thereby install the below at the shell with the oil pump bottom cover, carry out rubbish amount through the otter board to impurity simultaneously, thereby made things convenient for clearing up the inside below of shell.

Description

Brushless fuel pump of gasoline engine

Technical Field

The utility model relates to a fuel pump technical field specifically is a brushless fuel pump of gasoline engine.

Background

The fuel pump has simple structure, compact size, good suction, large oil delivery amount, small noise, stable operation, high efficiency, long service life and other characteristics, is used for various machine tools on trial, an internal combustion engine, a diesel engine, lubricating or cooling systems of mechanical equipment such as ships and the like, the type of the fuel pump can be divided into a brush fuel pump and a brushless fuel pump, the sealing effect of the brushless fuel pump in the prior art on an oil outlet pipe is not good, the oil leakage phenomenon easily occurs after long-time use, and the inside lower part of the brushless fuel pump is not conveniently cleaned in the technology.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a brushless fuel pump of gasoline engine to solve and propose among the above-mentioned background art and the brushless fuel pump among the prior art is not good to the sealed effect of oil pipe department, the problem of oil leak phenomenon appears easily through long-time the use.

In order to achieve the above object, the utility model provides a following technical scheme: a brushless fuel pump of a gasoline engine comprises a shell and a circular plate, wherein the circular plate is fixedly connected to the outer wall of the upper part of the shell, and a sealing device is arranged above the inner part of the shell;

the sealing device comprises an outer rotor shell, magnetic steel, a rotor shaft, a sealing ring, an oil pump upper cover, a first bolt, an oil outlet pipe and an electric control chamber;

the outer wall of outer rotor shell and the inner wall clearance fit of shell, the inside rigid coupling of outer rotor shell has the magnet steel, the inside rigid coupling of magnet steel has the rotor shaft, the top outer wall of rotor shaft closely laminates and has the sealing washer, the below outer wall of sealing washer and the top annular groove department inner wall clearance fit of shell, the oil pump upper cover is installed to the top of sealing washer, the through-hole department inner wall of oil pump upper cover and the outer wall clearance fit of rotor shaft, the oil pump upper cover links to each other with the circular slab screw thread through a plurality of first bolts, the inside left and right sides of oil pump upper cover rigid coupling respectively has out oil pipe and automatically controlled room, the below outer wall of going out oil pipe closely laminates with the through-hole department inner wall of sealing washer.

Preferably, the middle point of the magnetic steel and the middle point of the rotor shaft are on the same vertical line.

Preferably, the oil outlet pipe and the upper cover of the oil pump are vertically arranged.

Preferably, a fixing device is installed below the shell;

the fixing device comprises a transverse plate, an inner cover, a spring, an impeller shell, a screen plate, an oil pump bottom cover, a rubber pad, a second bolt and an L-shaped plate;

control the outside of diaphragm links to each other with the inner wall of shell is fixed, the below of diaphragm is equipped with the inner cup, the outer wall of inner cup is laminated with the inner wall of shell, the through-hole department inner wall of inner cup and the outer wall clearance fit of rotor shaft, a plurality of springs are installed to the top of inner cup, the below of spring links to each other with diaphragm and inner cup are fixed respectively, inner cup under surface mounting has the impeller shell, the impeller of impeller shell links to each other with the rotor shaft is fixed, the below of impeller shell is equipped with the otter board, the outer wall of otter board closely laminates with the inner wall of shell, the oil pump bottom is installed to the below of otter board, the rubber pad is installed to the inner wall of oil pump bottom and the below outer wall of shell, the outer wall of oil pump bottom has a plurality of L shaped plates through a plurality of second bolt threaded connection, the inboard of L shaped plate links to each other with the outer wall of shell is fixed.

Preferably, the left and right transverse plates and the inner cover are arranged in parallel.

Preferably, a plurality of the L-shaped plates are distributed in an arc shape at equal intervals.

Compared with the prior art, the beneficial effects of the utility model are that: this brushless fuel pump of gasoline engine through mutually supporting between outer rotor shell, magnet steel, rotor shaft, sealing washer, oil pump upper cover, first bolt, play oil pipe and the automatically controlled room isotructure, can fix oil pump upper cover and circular slab through first bolt to fix the sealing washer in the inside top of shell through the oil pump upper cover, and then improved the leakproofness.

Through mutually supporting between diaphragm, inner cup, spring, impeller shell, otter board, oil pump bottom, rubber pad, second bolt and the L shaped plate isotructure, can fix oil pump bottom and L shaped plate through the second bolt to install the oil pump bottom in the below of shell, carry out rubbish amount through the otter board to impurity simultaneously, thereby made things convenient for and cleared up the inside below of shell.

Drawings

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

FIG. 2 is a schematic structural diagram of the first bolt, the oil pump upper cover and the sealing ring in FIG. 1;

FIG. 3 is a schematic view of the spring, cross plate and inner lid of FIG. 1;

fig. 4 is a schematic structural view of the L-shaped plate, the second bolt and the mesh plate of fig. 1.

In the figure: 1. the oil pump comprises a shell, 2, a circular plate, 3, a sealing device, 301, an outer rotor shell, 302, magnetic steel, 303, a rotor shaft, 304, a sealing ring, 305, an oil pump upper cover, 306, a first bolt, 307, an oil outlet pipe, 308, an electric control chamber, 4, a fixing device, 401, a transverse plate, 402, an inner cover, 403, a spring, 404, an impeller shell, 405, a mesh plate, 406, an oil pump bottom cover, 407, a rubber pad, 408, a second bolt, 409 and an L-shaped plate.

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.

Referring to fig. 1-4, the present invention provides a technical solution: a brushless fuel pump of a gasoline engine comprises a shell 1 and a circular plate 2, an annular groove is processed on the upper portion inside the shell 1, the circular plate 2 is fixedly connected to the outer wall on the upper portion of the shell 1, a sealing device 3 is installed on the upper portion inside the shell 1, the sealing device 3 comprises an outer rotor shell 301, magnetic steel 302, a rotor shaft 303, a sealing ring 304, an upper oil pump cover 305, a first bolt 306, an oil outlet pipe 307 and an electric control chamber 308, the outer wall of the outer rotor shell 301 is in clearance fit with the inner wall of the shell 1, the magnetic steel 302 is fixedly connected inside the outer rotor shell 301, the rotor shaft 303 is fixedly connected inside the magnetic steel 302, the rotor shaft 303 can drive the magnetic steel 302 and the outer rotor shell 301 to rotate, the sealing ring 304 is tightly attached to the outer wall on the upper portion of the rotor shaft 303, the sealing property on the upper portion of the shell 1 can be improved through the sealing ring 304, oil pump upper cover 305 is installed to sealing washer 304's top, oil pump upper cover 305's through-hole inner wall and rotor shaft 303's outer wall clearance fit, oil pump upper cover 305 is continuous with circular slab 2 screw thread through 4 first bolts 306, oil pump upper cover 305 can be fixed with circular slab 2 through first bolt 306, the inside left and right sides of oil pump upper cover 305 rigid coupling respectively has oil outlet pipe 307 and automatically controlled room 308, can discharge oil through oil outlet pipe 307, the below outer wall of oil outlet pipe 307 closely laminates with the through-hole inner wall of sealing washer 304, the mid point of magnet steel 302 and the mid point of rotor shaft 303 are on same vertical line, oil outlet pipe 307 and oil pump upper cover 305 are perpendicular setting.

The fixing device 4 is installed below the housing 1, the fixing device 4 comprises a transverse plate 401, an inner cover 402, springs 403, an impeller shell 404, a screen 405, an oil pump bottom cover 406, a rubber pad 407, a second bolt 408 and an L-shaped plate 409, the outer sides of the left transverse plate 401 and the right transverse plate 401 are fixedly connected with the inner wall of the housing 1, the inner cover 402 is arranged below the transverse plate 401, the outer wall of the inner cover 402 is attached to the inner wall of the housing 1, through holes are formed in the inner cover 402, the inner wall of the through holes of the inner cover 402 is in clearance fit with the outer wall of the

rotor shaft

303, 2 springs 403 are installed above the inner cover 402, the springs 403 are in a compressed state when the inner cover 402 moves upwards, the fixing effect can be improved through the elastic performance of the springs 403, the upper direction and the lower direction of the springs are respectively fixedly connected with the transverse plate 401 and the inner cover 402, the impeller shell 404 is installed on the lower surface of the inner cover 402, an impeller of the impeller shell 404 is fixedly connected with the rotor shaft 303, the screen 405 is arranged below the impeller shell 404, can intercept impurity through otter board 405, the outer wall of otter board 405 closely laminates with the inner wall of shell 1, oil pump bottom cover 406 is installed to the below of otter board 405, rubber pad 407 is installed to the inner wall of oil pump bottom cover 406 and the below outer wall of shell 1, can increase the leakproofness of oil pump bottom cover 406 department through rubber pad 407, the outer wall of oil pump bottom cover 406 has 4L shaped plates 409 through 4 second bolt 408 threaded connection, the inboard of L shaped plate 409 links to each other with the outer wall of shell 1 is fixed, it is parallel arrangement with inner cup 402 to control diaphragm 401, be arc equidistance between a plurality of L shaped plates 409.

When an operator needs to use the brushless fuel pump of the gasoline engine, firstly, the operator installs the sealing ring 304 in the annular groove above the inside of the housing 1, installs the upper oil pump cover 305 on the housing 1, fixes the upper oil pump cover 305 and the housing 1 through the first bolt 306, thereby fixing the sealing ring 304 at the upper oil pump cover and the housing 305, further improving the sealing effect, installs the inner cover 402 inside the housing 1, drives the inner cover 402 to move through the mesh plate 405 and the impeller shell 404, thereby enabling the inner cover 402 to extrude the spring 403, installs the rubber gasket 407 at the inner wall of the bottom oil pump cover 406 and the outer wall below the housing 1, can improve the sealing property below the housing 1 through the rubber gasket 407, installs the bottom oil pump cover 406 below the housing 1, and fixes the bottom oil pump cover 406 and the L-shaped plate 409 through the second bolt 408, thereby facilitating the installation and the disassembly of the bottom oil pump cover 406, thereby facilitating the cleaning of the lower part inside the housing.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", 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 simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

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. The utility model provides a brushless fuel pump of gasoline engine, includes shell (1) and circular slab (2), the top outer wall rigid coupling of shell (1) has circular slab (2), its characterized in that: a sealing device (3) is arranged above the inner part of the shell (1);

the sealing device (3) comprises an outer rotor shell (301), magnetic steel (302), a rotor shaft (303), a sealing ring (304), an oil pump upper cover (305), a first bolt (306), an oil outlet pipe (307) and an electric control chamber (308);

the outer wall of the outer rotor shell (301) is in clearance fit with the inner wall of the shell (1), magnetic steel (302) is fixedly connected inside the outer rotor shell (301), a rotor shaft (303) is fixedly connected inside the magnetic steel (302), a sealing ring (304) is tightly attached to the outer wall of the upper part of the rotor shaft (303), the lower outer wall of the sealing ring (304) is in clearance fit with the inner wall of the upper annular groove of the shell (1), an oil pump upper cover (305) is arranged above the sealing ring (304), the inner wall of the through hole of the oil pump upper cover (305) is in clearance fit with the outer wall of the rotor shaft (303), the oil pump upper cover (305) is in threaded connection with the circular plate (2) through a plurality of first bolts (306), the left side and the right side inside the oil pump upper cover (305) are respectively and fixedly connected with an oil outlet pipe (307) and an electric control chamber (308), the outer wall of the lower part of the oil outlet pipe (307) is tightly attached to the inner wall of the through hole of the sealing ring (304).

2. The brushless fuel pump of claim 1, wherein: the middle point of the magnetic steel (302) and the middle point of the rotor shaft (303) are on the same vertical line.

3. The brushless fuel pump of claim 1, wherein: the oil outlet pipe (307) and the oil pump upper cover (305) are vertically arranged.

4. The brushless fuel pump of claim 1, wherein: a fixing device (4) is arranged below the shell (1);

the fixing device (4) comprises a transverse plate (401), an inner cover (402), a spring (403), an impeller shell (404), a mesh plate (405), an oil pump bottom cover (406), a rubber pad (407), a second bolt (408) and an L-shaped plate (409);

controlling the outside of diaphragm (401) links to each other with the inner wall of shell (1) is fixed, the below of diaphragm (401) is equipped with inner cup (402), the outer wall of inner cup (402) and the inner wall laminating of shell (1), the through-hole department inner wall of inner cup (402) and the outer wall clearance fit of rotor shaft (303), a plurality of springs (403) are installed to the top of inner cup (402), the below of spring (403) is fixed with diaphragm (401) and inner cup (402) respectively and is linked to each other, inner cup (402) lower surface mounting has impeller shell (404), the impeller and rotor shaft (303) of impeller shell (404) are fixed and are linked to each other, the below of impeller shell (404) is equipped with otter board (405), the outer wall of otter board (405) closely laminates with the inner wall of shell (1), oil pump bottom lid (406) is installed to the below of otter board (405), rubber pad (407) is installed to the inner wall of oil pump bottom lid (406) and the below outer wall of shell (1), the outer wall of the oil pump bottom cover (406) is in threaded connection with a plurality of L-shaped plates (409) through a plurality of second bolts (408), and the inner sides of the L-shaped plates (409) are fixedly connected with the outer wall of the shell (1).

5. The brushless fuel pump of claim 4, wherein: the left transverse plate (401) and the right transverse plate (402) are arranged in parallel.

6. The brushless fuel pump of claim 4, wherein: the plurality of L-shaped plates (409) are distributed in an arc shape at equal intervals.