CN217176876U

CN217176876U - Hydrogen pump bearing seat structure for preventing lubricating oil from splashing

Info

Publication number: CN217176876U
Application number: CN202221044006.5U
Authority: CN
Inventors: 邢子义; 姜静; 徐丙振; 王升科
Original assignee: Yantai Dongde Industrial Co Ltd
Current assignee: Yantai Dongde Industrial Co Ltd
Priority date: 2022-04-29
Filing date: 2022-04-29
Publication date: 2022-08-12
Anticipated expiration: 2032-04-29

Abstract

A hydrogen pump bearing seat structure for preventing lubricating oil from splashing comprises a motor shell and a supercharger shell, wherein a bearing seat is arranged in the supercharger shell, a gear chamber is formed between the bearing seat and the motor shell, and a driving gear and a driven gear are arranged in the gear chamber through a male rotor shaft and a female rotor shaft; the inner cavities corresponding to the driving gear and the driven gear in the bearing seat are shaped like an 8-shaped inner cavity, the arc-shaped bottom of the 8-shaped inner cavity is used for storing lubricating oil, and the arc-shaped top of the 8-shaped inner cavity is used for enabling splashed lubricating oil to be quickly collected to the arc-shaped bottom. Lubricating oil can collect the arc bottom fast after splashing in the gear chamber, in time provides the lubrication for driving gear and driven gear, guarantees that driving gear and driven gear last high-speed rotatory under the sufficient condition of lubricated oil mass, avoids causing the serious condition of wearing and tearing, has prolonged driving gear and driven gear life-span, still reduces the indoor lubricating oil stock of gear under the same condition, has reduced the risk that lubricating oil reveals the pollution fuel cell pile.

Description

Hydrogen pump bearing seat structure for preventing lubricating oil from splashing

The technical field is as follows:

the utility model relates to a prevent hydrogen pump bearing frame structure that lubricating oil splashes.

Background art:

the fuel cell generates electric energy through electrochemical reaction between combustible substances (hydrogen) and oxygen in air, wherein after the fuel cell reaction, discharged gas contains a large amount of hydrogen, and if the hydrogen is directly discharged into the atmosphere, the hydrogen is on one hand wasted energy, on the other hand pollutes the environment, and on the other hand, the hydrogen is flammable and combustible, so that danger is generated. Therefore, it is necessary to recover and reuse such hydrogen. At present, these hydrogen-containing mixed gases are generally recycled to the fuel cell by a hydrogen circulation pump for recycling. Hydrogen circulating pump type is many, wherein, in roots's formula hydrogen circulating pump, including motor casing and booster casing, be equipped with the bearing frame in the booster casing, form the gear room between bearing frame and the motor casing, and the rotor shaft of motor drives the indoor driving gear rotation of gear, and it is rotatory that the driving gear drives driven gear again, finally drives the rotation of male rotor and female rotor and carries out the pressure boost, and the gear is indoor the bottom and has lubricating oil, lubricates driving gear and driven gear. And present bearing frame, its inner structure design is unreasonable, when driving gear and driven gear rotate at a high speed, inside lubricating oil can splash thereupon, and present bearing frame bottom and top all are planar design, lubricating oil can not collect the bottom of driving gear and driven gear in the short time after splashing in the gear chamber, can't in time provide the lubrication for driving gear and driven gear, and driving gear and driven gear last high-speed rotatory under the condition that lubricated oil mass is low, the time has been of a specified duration and has caused wearing and tearing seriously easily, the condition of life-span shortens, and if add excessive lubricating oil in the gear chamber, cause lubricating oil again easily to reveal the problem of polluting the fuel cell pile, above problem has restricted hydrogen circulating pump's development.

In summary, in the field of hydrogen circulation pumps, the above-mentioned problems of the bearing seat have become a technical problem to be solved urgently in the industry.

The utility model has the following contents:

the utility model discloses a remedy prior art not enough, provide a prevent hydrogen pump bearing frame structure that lubricating oil splashes, solved lubricating oil in the past and can not collect the gear room bottom fast and provide lubricated problem for driving gear and driven gear after splashing, solved driving gear and driven gear in the past and continued high-speed rotation under the low condition of lubricating oil mass and cause serious, the short-lived problem of wearing and tearing.

The utility model discloses a solve the technical scheme that above-mentioned technical problem adopted and be:

a hydrogen pump bearing seat structure for preventing lubricating oil from splashing comprises a motor shell and a supercharger shell, wherein a bearing seat is arranged in the supercharger shell, a gear chamber is formed between the bearing seat and the motor shell, and a driving gear and a driven gear are arranged in the gear chamber through a male rotor shaft and a female rotor shaft; the inner cavity of the bearing seat corresponding to the driving gear and the driven gear is shaped like an 8-shaped inner cavity, the arc-shaped bottom of the 8-shaped inner cavity is used for storing lubricating oil, and the arc-shaped top of the 8-shaped inner cavity is used for enabling splashed lubricating oil to be quickly collected to the arc-shaped bottom.

The motor is characterized in that a stator and a rotor are arranged in the motor shell, and a rotor shaft at the center of the rotor is connected with a male rotor shaft through a coupler.

A pressurizing cavity is formed between the bearing seat and the supercharger shell, and a male rotor and a female rotor which are arranged on a male rotor shaft and a female rotor shaft are arranged in the pressurizing cavity.

The utility model adopts the above technical scheme, have following advantage:

set up to "8" font inner chamber through the inner chamber shape with corresponding driving gear and driven gear in the bearing frame, "8" font inner chamber's arc bottom is used for storing lubricating oil, "8" font inner chamber's arc top is used for making the lubricating oil that splashes collect the arc bottom fast, lubricating oil can collect the arc bottom fast after splashing in the gear chamber, in time provide lubrication for driving gear and driven gear, guarantee that driving gear and driven gear last high-speed rotatory under the condition that lubricated oil mass is sufficient, avoid causing the serious condition of wearing and tearing, the driving gear has been prolonged and driven gear life-span, in addition, the indoor lubricating oil stock of gear has still been reduced under the same circumstances, the risk of lubricating oil leakage pollution fuel cell pile has been reduced.

Description of the drawings:

fig. 1 is a schematic sectional view of the present invention.

Fig. 2 is a schematic perspective view of the bearing seat of the present invention.

In the figure, 1, a motor shell, 2, a supercharger shell, 3, a bearing seat, 4, a gear chamber, 5, a male rotor shaft, 6, a female rotor shaft, 7, a driving gear, 8, a driven gear, 9, an 8-shaped inner cavity, 10, an arc-shaped bottom, 11, an arc-shaped top, 12, a stator, 13, a rotor, 14, a rotor shaft, 15, a coupler, 16, a supercharging cavity, 17, a male rotor, 18 and a female rotor.

The specific implementation mode is as follows:

in order to clearly illustrate the technical features of the present invention, the present invention is explained in detail by the following embodiments in combination with the accompanying drawings.

As shown in fig. 1-2, a hydrogen pump bearing seat structure for preventing lubricating oil from splashing comprises a motor housing 1 and a supercharger housing 2, wherein a bearing seat 3 is arranged in the supercharger housing 2, a gear chamber 4 is formed between the bearing seat 3 and the motor housing 1, and a driving gear 7 and a driven gear 8 are arranged in the gear chamber 4 through a male rotor shaft 5 and a female rotor shaft 6; the inner cavity shape of the bearing seat 3 corresponding to the driving gear 7 and the driven gear 8 is an 8-shaped inner cavity 9, the arc-shaped bottom 10 of the 8-shaped inner cavity 9 is used for storing lubricating oil, the arc-shaped top 11 of the 8-shaped inner cavity 9 is used for enabling the splashed lubricating oil to be quickly collected to the arc-shaped bottom 10, the lubricating oil can be quickly collected to the arc-shaped bottom 10 after being splashed in the gear chamber 4, the lubricating oil is timely provided for the driving gear 7 and the driven gear 8 to lubricate, the driving gear 7 and the driven gear 8 are guaranteed to continuously rotate at high speed under the condition that the lubricating oil quantity is sufficient, the serious abrasion condition is avoided, the service lives of the driving gear 7 and the driven gear 8 are prolonged, in addition, the lubricating oil stock in the gear chamber 4 is also reduced under the same condition, and the risk that the lubricating oil leaks to pollute the fuel cell stack is reduced.

A stator 12 and a rotor 13 are arranged in the motor housing 1, and a rotor shaft 14 at the center of the rotor 13 is connected with the male rotor shaft 5 through a coupling 15.

A pressurizing cavity 16 is formed between the bearing seat 3 and the supercharger shell 2, and a male rotor 17 and a female rotor 18 which are arranged on the male rotor shaft 5 and the female rotor shaft 6 are arranged in the pressurizing cavity 16.

When the motor works, the rotor shaft 14 drives the male rotor shaft 5 to rotate through the coupler 15, the male rotor shaft 5 drives the male rotor 17 to rotate on the one hand, the driving gear 7 to rotate on the other hand, the driving gear 7 drives the driven gear 8 to rotate again, and the driven gear 8 drives the female rotor 18 on the driving gear to synchronously rotate, so that the pressurization function of the hydrogen circulating pump is realized.

The above-mentioned specific embodiments can not be regarded as the restriction to the scope of protection of the utility model, to technical personnel in this technical field, it is right the utility model discloses any replacement improvement or transform that embodiment made all fall within the scope of protection of the utility model.

The parts of the present invention not described in detail are the known techniques of those skilled in the art.

Claims

1. The utility model provides a prevent hydrogen pump bearing frame structure that lubricating oil splashes which characterized in that: the booster comprises a motor shell and a booster shell, wherein a bearing seat is arranged in the booster shell, a gear chamber is formed between the bearing seat and the motor shell, and a driving gear and a driven gear are arranged in the gear chamber through a male rotor shaft and a female rotor shaft; the inner cavity of the bearing seat corresponding to the driving gear and the driven gear is shaped like an 8-shaped inner cavity, the arc-shaped bottom of the 8-shaped inner cavity is used for storing lubricating oil, and the arc-shaped top of the 8-shaped inner cavity is used for enabling splashed lubricating oil to be quickly collected to the arc-shaped bottom.

2. The hydrogen pump bearing seat structure for preventing splashing of lubricating oil as claimed in claim 1, wherein: the motor is characterized in that a stator and a rotor are arranged in the motor shell, and a rotor shaft at the center of the rotor is connected with a male rotor shaft through a coupler.

3. The hydrogen pump bearing seat structure for preventing splashing of lubricating oil as claimed in claim 1, wherein: a pressurizing cavity is formed between the bearing seat and the supercharger shell, and a male rotor and a female rotor which are arranged on a male rotor shaft and a female rotor shaft are arranged in the pressurizing cavity.