CN112901995A

CN112901995A - High-pressure oil film motor and oil recovery system

Info

Publication number: CN112901995A
Application number: CN202110011266.6A
Authority: CN
Inventors: 姚超; 谭海军; 陶峰; 俞晨凯
Original assignee: Jiangsu Jiuzhi Electric Co ltd
Current assignee: Jiangsu Jiuzhi Electric Co ltd
Priority date: 2021-01-06
Filing date: 2021-01-06
Publication date: 2021-06-04

Abstract

The invention relates to a high-pressure oil film motor, which comprises a hollow shell, wherein a rotating shaft and bearings sleeved at two ends of the rotating shaft are arranged in the shell, the bearings and the rotating shaft are coaxially arranged, an upper oil inlet channel and a lower oil inlet channel are arranged on the bearings, the upper oil inlet channel and the lower oil inlet channel are both communicated with the rotating shaft, an upper oil inlet groove is arranged at one end of each upper oil inlet channel, which is far away from the rotating shaft, a lower oil inlet groove is arranged at one end of each lower oil inlet channel, which is far away from the rotating shaft, an upper oil injection port communicated with the upper oil inlet grooves is arranged at the upper part of the shell, a; the invention also relates to an oil recovery system which comprises an oil return pipe and an oil collecting tank communicated with the oil return pipe. The invention has the effects of prolonging the service life of the motor, improving the performance of the motor and saving lubricating oil.

Description

High-pressure oil film motor and oil recovery system

Technical Field

The invention relates to the technical field of motors, in particular to a high-pressure oil film motor and an oil liquid recovery system.

Background

The motor is an electromagnetic device for realizing electric energy conversion or transmission according to the electromagnetic induction law, has the main function of generating driving torque, is used as a power source of electrical appliances or various machines, has various types, and is also widely applied.

There is disclosed in chinese patent No. CN100431244C, a dynamic pressure bearing motor having an additional dynamic pressure generating means, which includes a supporting unit provided on an outer surface of a motor shaft, and a shaft bracket mounted on the motor shaft. Further, a groove for generating dynamic pressure is formed on an outer surface of the supporting unit. The extension portion is provided at the shaft bracket to support the support unit in contact with an outer surface of the support unit having the groove. .

The above prior art solutions have the following drawbacks: although the motor in the above scheme is driven by the additional dynamic pressure generation device, so that the motor shaft can stably rotate at a high speed, and vibration is reduced, the motor still adopts a relatively traditional metal bearing rotating structure, the rotating shaft can continuously rub with other parts, and abrasion of the rotating shaft is caused, so that the rotating shaft is generally lubricated by filling lubricating oil in the bearing, and the friction force of the rotating shaft is reduced.

Disclosure of Invention

The invention provides a high-pressure oil film motor and an oil liquid recovery system, aiming at prolonging the service life of the motor, improving the performance of the motor and saving lubricating oil.

In a first aspect, the invention provides a high-voltage oil film motor, which adopts the following technical scheme:

the utility model provides a high-pressure oil film motor, includes inside hollow shell, be provided with the bearing at the pivot both ends with the cover to establish in the shell, bearing and the coaxial setting of pivot, last oil duct and lower oil feed way have been seted up on the bearing, last oil duct and lower oil feed way all communicate with each other with the pivot, each the one end that the pivot was kept away from to last oil duct is provided with last oil feed groove, each the one end that the pivot was kept away from to lower oil feed way is provided with down the oil feed groove, the opening part of last oil feed groove all is provided with the last baffle that is used for preventing fluid from leaking outward, the opening part of oil feed groove is provided with the lower baffle that is used for preventing fluid from leaking outward, the last hydraulic fluid inlet that feeds through with last oil feed groove is seted up on shell upper portion, the lower.

Through adopting above-mentioned technical scheme, when the motor began to use, upwards annotate the oil mouth and pour into a mould lubricated fluid in the hydraulic fluid port down, lubricated fluid flows into last oil feed groove on the bearing, lower oil feed groove, and the interior lubricated fluid of going up oil feed groove and lower oil feed groove flows to the pivot lateral wall through going up the oil duct and advancing oil feed way down on to play lubricated effect to the countershaft. According to the scheme, a large amount of lubricating oil is not stored in the bearing in advance, so that the resistance of the rotating shaft during starting is reduced, and the starting is more convenient; secondly make the both ends of pivot float in lubricating oil all the time through a plurality of oiling mouths, oil feed passage, can make and have lubricating oil liquid to lubricate all the time between pivot and the bearing at the motor during operation for the frictional resistance greatly reduced that the pivot received, thereby improved the performance of motor, promoted machining efficiency.

The invention is further configured to: the bearing comprises an upper oil inlet channel, a lower oil inlet channel, a plurality of oil inlet channels and a plurality of oil outlet channels, wherein the upper oil inlet channel and the lower oil inlet channel are arranged in a plurality, the upper oil inlet channel and the lower oil inlet channel are evenly distributed at intervals in the circumferential direction of the bearing, and the upper oil inlet channel and the lower oil inlet channel are.

Through adopting above-mentioned technical scheme, a plurality of all make all sides of pivot all can contact lubricating oil with the last oil duct that distributes and lower oil inlet duct, improved lubricating oil to the lubricated effect of pivot to reduce the friction, improved the performance of motor.

The invention is further configured to: the upper oil inlet channel and the lower oil inlet channel are equal in number and correspond to each other one by one, and the upper oil inlet channel and the lower oil inlet channel which are opposite to each other are symmetrically arranged relative to the axis of the rotating shaft.

The invention is further configured to: an upper oil guide pipe is arranged between the upper oil inlet duct and the upper oil injection port, one end of the upper oil guide pipe is communicated with the upper oil injection port, the other end of the upper oil guide pipe penetrates through the upper partition plate and extends into the upper oil inlet groove, a lower oil guide pipe is arranged between the lower oil inlet duct and the lower oil injection port, one end of the lower oil guide pipe is communicated with the lower oil injection port, and the other end of the lower oil guide pipe penetrates through the lower partition plate and extends into the lower oil inlet.

By adopting the technical scheme, the lubricating oil in the motor is guided by the upper oil guide pipe and the lower oil guide pipe, the possibility that the lubricating oil leaks into the motor is reduced, and the lubricating effect is improved.

The invention is further configured to: an upper socket for inserting an upper oil guide pipe is formed in the upper partition plate, an upper sealing ring is arranged at the opening of the upper socket, and the upper oil guide pipe is sleeved with the upper sealing ring.

Through adopting above-mentioned technical scheme, the sealing ring has further improved the isolation effect of last baffle to the fluid in the last oil feeding groove, has reduced the fluid from the last oil pipe of leading and the interior outflow possibility of last socket of last baffle junction, has improved the leakproofness.

The invention is further configured to: the lower baffle is provided with a lower socket for inserting a lower oil guide pipe, the opening of the lower socket is provided with a lower sealing ring, and the lower sealing ring is sleeved on the lower oil guide pipe.

Through adopting above-mentioned technical scheme, the sealing ring has further improved the isolation effect of baffle to the fluid in the oil feed tank down, has reduced fluid from leading oil pipe and baffle junction's under the lower possibility of flowing out in the lower jack, has improved the leakproofness.

In a second aspect, the invention provides an oil liquid recovery system, which adopts the following technical scheme:

the utility model provides a fluid recovery system, includes the oil return pipe that communicates with above-mentioned oil-out, sets up the hollow oil collecting tank of shell side, the one end that the oil-out was kept away from to the oil return pipe links to each other with the upper portion of oil collecting tank, be provided with the filtrating board in the oil collecting tank, the filtrating board is located the below that oil return pipe links to each other with the oil collecting tank, filtrating board periphery and oil collecting tank inner wall meet, the filtrating board separates the oil collecting tank into the filter chamber of treating that is located filtrating board top and the filtered chamber that is located filtrating board below, return the oil pipe and treat the filter chamber intercommunication, the below of oil collecting tank is provided with the fluid-discharge tube that is used for discharging filtered fluid, the one end that the fluid-discharge tube stretches out the oil collecting tank.

Through adopting above-mentioned technical scheme, lubricating oil drips the back from the pivot, and through returning the intracavity that waits that oil pipe flows into the sump oil tank, flows into the filtered cavity of filtrating board below after the filtration of filtrating board to store in filtered cavity, when needs oiling, connect the oiling pipe on the control valve, then open the control valve, with the help of the oiling pipe to the last oiling mouth of motor, the interior oiling of lower oiling mouth, play lubricated effect to the pivot once more. The system has the function of recycling the lubricating oil, reduces the possibility of pollution caused by the fact that the lubricating oil is accumulated in situ after flowing out of the oil outlet, and achieves the effect of reducing the waste of the lubricating oil.

The invention is further configured to: the oil collecting tank is provided with an openable upper cover.

The invention is further configured to: the inner bottom of the oil collecting tank is obliquely arranged, and the oblique direction faces the liquid discharge pipe.

Through adopting above-mentioned technical scheme, set up the bottom of sump oil tank into the inclined plane for the lubricating oil liquid of gathering in the filter chamber can flow out from the fluid-discharge tube along the inclined plane, reduces the possibility that lubricating oil liquid remained in the sump oil tank.

The invention is further configured to: and universal wheels are arranged below the oil collecting tank.

By adopting the technical scheme, the universal wheels are arranged to enable the oil collecting tank to be movable, and the position of the oil collecting tank can be adjusted according to the position of the motor and the length of the oil return pipe, so that the oil collecting tank is more convenient to use, and the applicability of the recovery system is improved.

In conclusion, the beneficial technical effects of the invention are as follows:

1. a large amount of lubricating oil is not stored in the bearing in advance, so that the resistance of the rotating shaft during starting is reduced, and the starting is more convenient;

2. the oil is injected to the outer side of the rotating shaft through the oil injection port and the oil inlet channel, so that two ends of the rotating shaft always float in lubricating oil, and lubricating oil is always arranged between the rotating shaft and the bearing for lubricating when the motor works, so that the friction resistance borne by the rotating shaft is greatly reduced, the performance of the motor is improved, and the processing efficiency is improved;

3. the lubricating oil recycling device has the advantages that the lubricating oil recycling device plays a role in recycling lubricating oil by means of the oil return pipe, the filter liquid plate, the oil filling pipe and other parts, reduces the possibility of pollution caused by accumulation of the lubricating oil in situ after the lubricating oil flows out of the oil outlet, and achieves the effect of reducing lubricating oil waste.

Drawings

FIG. 1 is a cross-sectional view of an electric machine;

FIG. 2 is an enlarged schematic view of portion A of FIG. 1;

FIG. 3 is an enlarged schematic view of portion B of FIG. 1;

FIG. 4 is a block diagram of the sump;

FIG. 5 is a schematic view of a de-capping configuration of the sump;

fig. 6 is a sectional view of the sump tank.

In the figure, 1, a housing; 11. an upper oil injection port; 12. a lower oil inlet; 13. an oil outlet; 14. an oil guide pipe is arranged; 15. a lower oil guide pipe; 2. a bearing; 21. an upper oil inlet duct; 211. an upper oil inlet groove; 212. an upper partition plate; 213. an upper socket; 214. an upper seal ring; 22. a lower oil inlet channel; 221. a lower oil inlet groove; 222. a lower partition plate; 223. a lower socket; 224. a lower seal ring; 3. a rotating shaft; 4. an oil return pipe; 5. an oil collecting tank; 51. a filtrate plate; 52. a cavity to be filtered; 53. a filtered cavity; 54. an upper cover; 6. a liquid discharge pipe; 7. a control valve; 8. a universal wheel.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, the high-pressure oil film motor disclosed by the invention comprises a hollow shell 1, the shell 1 is cylindrical, a rotating shaft 3 is arranged in the shell 1, bearings 2 are sleeved at two ends of the rotating shaft 3, the outer diameter of the rotating shaft 3 is smaller than the inner diameter of the bearing 2, the shell 1, the bearings 2 and the rotating shaft 3 are coaxially arranged, and an oil outlet 13 is formed in the lower part of the shell 1.

Referring to fig. 1 and 2, an upper oil injection port 11 is formed in the upper side of the housing 1, the upper oil injection port 11 is communicated with an upper oil guide pipe 14, an upper oil inlet groove 211 is formed in the upper side of the bearing 2, and one end, far away from the upper oil injection port 11, of the upper oil guide pipe 14 extends into the upper oil inlet groove 211. An upper oil inlet channel 21 communicated with the upper oil inlet groove 211 is further formed in the bearing 2, the upper oil inlet channel 21 is radially arranged along the bearing 2, and one end, far away from the upper oil inlet groove 211, of the upper oil inlet channel 21 is communicated with the gap between the rotating shaft 3 and the bearing 2.

Referring to fig. 1 and 2, an upper partition 212 is disposed at an opening of the upper oil inlet groove 211, an upper socket 213 for inserting the upper oil guiding pipe 14 is disposed on the upper partition, one end of the upper oil guiding pipe 14, which is far away from the upper oil injection port 11, penetrates through the upper socket 213 and extends into the upper oil injection groove, an upper sealing ring 214 is disposed at a mouth of the upper socket 213, and the upper sealing ring 214 is sleeved on the upper oil guiding pipe 14. The upper partition 212 and the upper sealing ring 214 improve the isolation effect on the oil in the upper oil inlet groove 211, reduce the possibility of leakage of the oil from the upper oil inlet groove 211, and improve the sealing performance.

Referring to fig. 1 and 3, a lower injection port 12 is formed in the lower side of the housing 1, the upper injection port 11 is communicated with a lower oil guide pipe 15, a lower oil inlet groove 221 is formed in the lower side of the bearing 2, and one end of the lower oil guide pipe 15, which is far away from the lower injection port 12, extends into the lower oil inlet groove 221. A lower oil inlet channel 22 communicated with the lower oil inlet groove 221 is further formed in the bearing 2, the lower oil inlet channel 22 is radially arranged along the bearing 2, and one end, far away from the lower oil inlet groove 221, of the lower oil inlet channel 22 is communicated with a gap between the rotating shaft 3 and the bearing 2.

Referring to fig. 1 and 3, a lower partition 222 is disposed at an opening of the lower oil inlet groove 221, a lower socket 223 into which the lower oil guiding pipe 15 is inserted is formed on the lower partition, one end of the lower oil guiding pipe 15, which is far away from the lower oil inlet 12, extends into the lower oil inlet groove through the lower socket 223, a lower sealing ring 224 is disposed at a mouth of the lower socket 223, and the lower sealing ring 224 is sleeved on the lower oil guiding pipe 15. The lower partition plate 222 and the lower seal ring 224 improve the isolation effect of the oil in the lower oil inlet groove 221, reduce the possibility of leakage of the oil from the lower oil inlet groove 221, and improve the sealing property.

The upper oil passage 21 and the lower oil passage 22 are provided with a plurality of oil passages, the number of the upper oil passage 21 and the number of the lower oil passage 22 are equal, each of the upper oil passage 21 and the lower oil passage 22 has a corresponding lower oil passage 22, and the corresponding upper oil passage 21 and the corresponding lower oil passage 22 are symmetrically arranged about the axis of the rotating shaft 3. The plurality of upper oil passages 21 and the plurality of lower oil passages 22 are uniformly distributed at intervals in the circumferential direction of the bearing 2, and the plurality of upper oil passages 21 and the plurality of lower oil passages 22 are distributed on the same circumference. The plurality of upper oil inlet ducts 21 and the lower oil inlet ducts 22 which are distributed all enable all the side faces of the rotating shaft 3 to be in contact with lubricating oil, so that the lubricating effect of the lubricating oil on the rotating shaft 3 is improved, friction is reduced, and the performance of the motor is improved.

Referring to fig. 4, the oil recovery system disclosed by the present invention comprises an oil return pipe 4 communicated with an oil outlet 13 of a motor, wherein one end of the oil return pipe 4 far away from the oil outlet 13 extends into a hollow oil collecting tank 5, and an openable upper cover 54 is arranged at the top of the oil collecting tank 5.

Referring to fig. 5 and 6, an access board is fixedly connected inside the oil collection tank 5, a filtrate board 51 is placed on the access board, the periphery of the filtrate board 51 abuts against the inner wall of the oil collection tank 5, the oil collection tank 5 is divided into a to-be-filtered cavity 52 located above the filtrate board 51 and a filtered cavity 53 located below the filtrate board 51 by the filtrate board 51, and the oil return pipe 4 is communicated with the to-be-filtered cavity 52. One side wall of the oil collecting tank 5 is connected with a liquid discharge pipe 6, one end of the liquid discharge pipe 6 extends into the oil collecting tank 5 and is communicated with the filtered cavity 53, the other end of the liquid discharge pipe extends out of the oil collecting tank 5, and one end of the liquid discharge pipe 6 extending out of the oil collecting tank 5 is provided with a control valve 7.

Referring to fig. 6, the inner bottom of the oil collection tank 5 is inclined toward the drain pipe 6, and the inclined bottom allows the lubricating oil collected in the filter chamber 53 to flow out of the drain pipe 6 along the inclined surface, thereby reducing the possibility of the lubricating oil remaining in the oil collection tank 5.

Referring to fig. 4, a universal wheel 8 with a self-locking function is arranged below the oil collecting tank 5, the oil collecting tank 5 can move due to the universal wheel 8, and the position of the oil collecting tank 5 can be adjusted according to the position of the motor and the length of the oil return pipe 4, so that the oil collecting tank 5 is more convenient to use, and the applicability of the recovery system is improved.

The implementation principle of the embodiment is as follows: when the motor starts to be used, lubricating oil is poured into the upward oil injection port 11 and the downward oil injection port 12, the lubricating oil flows into the upper oil inlet groove 211 and the lower oil inlet groove 221 on the bearing 2, the lubricating oil in the upper oil inlet groove 211 and the lower oil inlet groove 221 flows onto the outer side wall of the rotating shaft 3 through the upper oil inlet duct 21 and the lower oil inlet duct 22, so that a lubricating effect is achieved on the rotating shaft 3, after the lubricating oil drips from the rotating shaft 3, the lubricating oil flows into the to-be-filtered cavity 52 of the oil collecting tank 5 through the oil return pipe 4, flows into the filtered cavity 53 below the filter plate 51 after being filtered by the filter plate 51 and is stored in the filtered cavity 53, when oil injection is needed, the control valve 7 is opened, and the lubricating effect is achieved on the rotating shaft 3 again through the oil injection port 11 and the oil injection port 12 of the motor. According to the scheme, a large amount of lubricating oil is not stored in the bearing 2 in advance, so that the resistance of the rotating shaft 3 during starting is reduced, and the starting is more convenient; secondly through a plurality of oiling mouths, the oil feed way makes the both ends of pivot 3 float in lubricating oil all the time, can make pivot 3 and bearing 2 between have lubricating oil to lubricate all the time at the motor during operation, make the frictional resistance greatly reduced that pivot 3 received, thereby the performance of motor has been improved, machining efficiency has been promoted, and carry out recycle once more to the lubricating oil after using, reduced lubricating oil and piled up the possibility that causes the pollution in situ after oil-out 13 flows, played the extravagant effect of reducing lubricating oil.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.

Claims

1. The utility model provides a high-pressure oil film motor, includes inside hollow shell (1), be provided with pivot (3) in shell (1) and establish bearing (2) at pivot (3) both ends with the cover, bearing (2) and pivot (3) coaxial setting, its characterized in that: an upper oil inlet channel (21) and a lower oil inlet channel (22) are arranged on the bearing (2), the upper oil inlet channel (21) and the lower oil inlet channel (22) are communicated with the rotating shaft (3), an upper oil inlet groove (211) is arranged at one end of each upper oil inlet channel (21) far away from the rotating shaft (3), a lower oil inlet groove (221) is arranged at one end of each lower oil inlet channel (22) far away from the rotating shaft (3), the openings of the upper oil inlet grooves (211) are provided with upper partition plates (212) for preventing oil from leaking outwards, a lower clapboard (222) for preventing oil from leaking is arranged at the opening of the lower oil inlet groove (221), the upper part of the shell (1) is provided with an upper oil injection port (11) communicated with the upper oil inlet groove (211), the lower part of the shell (1) is provided with a lower oil injection port (12) communicated with the lower oil inlet groove (221), and the lower part of the shell (1) is also provided with an oil outlet (13).

2. A high pressure oil film motor as claimed in claim 1 wherein: the oil pump is characterized in that the upper oil inlet channel (21) and the lower oil inlet channel (22) are arranged in a plurality of numbers, the upper oil inlet channel (21) and the lower oil inlet channel (22) are evenly distributed at intervals in the circumferential direction of the bearing (2), and the upper oil inlet channel (21) and the lower oil inlet channel (22) are distributed on the same circumference.

3. A high pressure oil film motor as claimed in claim 1 wherein: the number of the upper oil inlet channels (21) is equal to that of the lower oil inlet channels (22), the upper oil inlet channels (21) are in one-to-one correspondence with the lower oil inlet channels (22), and the upper oil inlet channels and the lower oil inlet channels are arranged symmetrically relative to the axis of the rotating shaft (3).

4. A high pressure oil film motor as claimed in claim 1 wherein: an upper oil guide pipe (14) is arranged between the upper oil inlet duct (21) and the upper oil injection port (11), one end of the upper oil guide pipe (14) is communicated with the upper oil injection port (11), the other end of the upper oil guide pipe penetrates through the upper partition plate (212) and extends into the upper oil inlet groove (211), a lower oil guide pipe (15) is arranged between the lower oil inlet duct (22) and the lower oil injection port (12), one end of the lower oil guide pipe (15) is communicated with the lower oil injection port (12), and the other end of the lower oil guide pipe penetrates through the lower partition plate (222) and extends into the lower oil inlet groove (221).

5. The high pressure oil film motor of claim 4, wherein: an upper socket (213) for inserting an upper oil guide pipe (14) is formed in the upper partition plate (212), an upper sealing ring (214) is arranged at the opening of the upper socket (213), and the upper oil guide pipe (14) is sleeved with the upper sealing ring (214).

6. The high pressure oil film motor of claim 4, wherein: the lower partition plate (222) is provided with a lower insertion opening (223) for inserting a lower oil guide pipe (15), the opening of the lower insertion opening (223) is provided with a lower sealing ring (224), and the lower sealing ring (224) is sleeved on the lower oil guide pipe (15).

7. An oil liquid recovery system is characterized in that: the high-pressure oil film motor applied to any one of claims 1 to 6, comprising an oil return pipe (4) communicated with an oil outlet (13), and a hollow oil collecting tank (5) arranged at the side edge of the shell (1), wherein one end of the oil return pipe (4) far away from the oil outlet (13) is connected with the upper part of the oil collecting tank (5), a filtrate plate (51) is arranged in the oil collecting tank (5), the filtrate plate (51) is positioned below the joint of the oil return pipe (4) and the oil collecting tank (5), the periphery of the filtrate plate (51) is connected with the inner wall of the oil collecting tank (5), the filtrate plate (51) divides the oil collecting tank (5) into a cavity to be filtered (52) positioned above the filtrate plate (51) and a filtered cavity (53) positioned below the filtrate plate (51), the oil return pipe (4) is communicated with the cavity to be filtered (52), and a drain pipe (6) for draining filtered oil is arranged below the oil collecting tank (5), and a control valve (7) is arranged at one end of the liquid discharge pipe (6) extending out of the oil collecting tank (5).

8. The oil recovery system according to claim 7, wherein: the oil collecting tank (5) is provided with an openable upper cover (54).

9. The oil recovery system according to claim 7, wherein: the inner bottom of the oil collecting tank (5) is obliquely arranged, and the oblique direction faces the liquid discharge pipe (6).

10. The oil recovery system according to claim 7, wherein: and universal wheels (8) are arranged below the oil collecting tank (5).