CN218787321U

CN218787321U - Oil lubrication bearing sealing device

Info

Publication number: CN218787321U
Application number: CN202223361660.1U
Authority: CN
Inventors: 马晓乾; 邹义; 陈燕平; 张玮炜; 李光
Original assignee: 704th Research Institute of CSIC
Current assignee: 704th Research Institute of CSIC
Priority date: 2022-12-14
Filing date: 2022-12-14
Publication date: 2023-04-04
Anticipated expiration: 2032-12-14

Abstract

The utility model relates to an oil lubrication bearing sealing device, the bearing box that sets up including casing one end, the motor spindle is equipped with to the bearing box inner chamber, the bearing of bearing box inner chamber installation suit in the motor spindle outside, bearing one side set up with the solid fixed ring of motor spindle fixed and solid fixed ring outside set up with the motor end cover of casing fixed, motor end cover inboard is equipped with the oil gallery, the oil gallery right side is equipped with the extension board, the motor end cover outside is located to the extension board, gu fixed ring one side is equipped with the oil slinger, the oil slinger passes through the screw thread and is connected with motor spindle, be located oil gallery one end, be equipped with the annular groove on the extension board inner wall, the annular groove inboard is equipped with rotatory ring, the rotatory ring outside all is equipped with the dirt ring with the annular groove inner chamber, motor spindle below is equipped with defeated oil pipe, defeated oil pipe runs through the motor end cover, defeated oil pipe one end is connected with surveys buret, survey buret bottom installation ooff valve. The utility model discloses can seal oil lubricated bearing, reduce the processing cost, the leakproofness is good simultaneously, long service life.

Description

Oil lubrication bearing sealing device

Technical Field

The utility model relates to an oil blanket device of rotating machinery, especially an oil lubrication bearing sealing device.

Background

The mechanical seal is an oil seal device of a rotating machine, such as equipment such as a centrifugal pump, a centrifuge, a reaction kettle, a compressor and the like, because a transmission shaft penetrates inside and outside the equipment, a circumferential gap exists between the shaft and the equipment, a medium in the equipment leaks outwards through the gap, if the pressure in the equipment is lower than the atmospheric pressure, air leaks inwards the equipment, a shaft seal device for preventing leakage is necessary, the shaft seals are various, because the mechanical seal has the advantages of small leakage amount, long service life and the like, the mechanical seal is the most main shaft seal mode of the equipment in the world today, and the mechanical seal is also called an end face seal and is defined in relevant national standards as follows: "means for preventing fluid leakage, which is composed of at least one pair of end faces perpendicular to the rotation axis, and which are kept in fit and relatively slide under the action of fluid pressure and the elastic force (or magnetic force) of the compensation mechanism and the cooperation of the auxiliary seal. Under "the existing condition, the bearing frame sealing mode that adopts the thin oil lubrication mode mostly uses mechanical seal as the main, however the machining precision requirement of mechanical seal mode to the sealing member is higher, sealing performance hardly obtains guaranteeing, and mechanical seal needs great bearing frame inner space, make the bearing frame volume seem very big, and if use rubber seal under the high rotational speed condition, can cause the quick wearing and tearing of rubber, lead to sealing performance to descend, and the lubricating oil that now lubricates and use is changed according to certain time limit mostly, can not change according to specific in service behavior, cause the bearing to damage very easily, therefore, need further improvement.

Disclosure of Invention

The utility model discloses a solve mechanical seal rubber under the high rotational speed condition and wear fast, lead to the technical problem that sealing performance descends, and provide an oil lubrication bearing sealing device, the device simple structure, reasonable in design can seal oil lubrication bearing, reduces the processing cost, and the leakproofness is good simultaneously, long service life.

In order to solve the technical problem, the utility model provides a following technical scheme:

the utility model provides an oil lubrication bearing sealing device, the suit that the bearing case, the bearing case inner chamber that set up including casing, casing one end were equipped with run through the motor spindle of bearing case and casing, the motor end cover that sets up with motor spindle fixed connection's solid fixed ring and the solid fixed ring outside that the bearing case inner chamber was installed with casing fixed connection, motor end cover inboard is equipped with the oil gallery, the oil gallery right side is equipped with the extension board, just the motor end cover outside is located to the extension board, gu fixed ring one side is equipped with the oil slinger, just the oil slinger passes through the screw thread and is connected with motor spindle to be located oil gallery one end, be equipped with the annular groove on the extension inboard, the annular groove inboard is equipped with rotatory ring, rotatory ring outside all is equipped with the dirt ring with the annular groove inner chamber, motor spindle below is equipped with defeated oil pipe, just defeated oil pipe runs through the motor end cover, defeated oil pipe one end is connected with surveys buret, the ooff valve is installed to the buret bottom.

Further, solid fixed ring suit is in the motor spindle outside, just gu fixed ring is connected with the laminating of motor spindle.

Further, a sealing gasket is arranged between the shell and the motor end cover, and the side wall of the motor end cover is of an arc-shaped structure.

Furthermore, rotatory ring comprises two semicircle rings, and passes through fixed screw connection between two semicircle rings, the dust ring on the rotatory ring sets up with the dust ring interval of annular groove inner chamber.

Furthermore, a sliding sealing ring is arranged between the right end of the extension plate and the motor spindle.

Further, survey buret and pass through the screw thread sleeve pipe and be connected with defeated oil pipe, survey buret right-hand member is connected with the viewing aperture, the viewing aperture lateral wall is inlayed and is had the observation window, be equipped with the scale mark on the observation window.

The utility model has the advantages that:

the utility model discloses an oil lubricated bearing sealing device, moreover, the steam generator is simple in structure, and reasonable design, can seal oil lubricated bearing, reduce the processing cost, the leakproofness is good simultaneously, long service life, through setting up the oil return tank, can intercept the lubricating oil that the oil slinger throws away, prevent that lubricating oil from flowing out the bearing box, cause the oil leak, thereby influence the lubrication of bearing, through setting up the oil slinger, can take the lubricating oil through rotatory, play the effect for the bearing oil supply, play the effect of cooling to the axle bush simultaneously, through setting up rotatory ring, can support and fix the dust ring, make the position relatively fixed of dust ring on the rotatory ring and the dust ring in the annular groove, avoid contacting, through setting up the dust ring, can form the protective screen, avoid the dust to get into inside the motor end cover through the gap between motor spindle and the motor end cover, through setting up the survey buret, can clearly show the oil mass, avoid the oil mass too little, influence bearing lubrication, can change lubricating oil through the judgement of observing lubricating oil simultaneously, through setting up the ooff valve, can conveniently change and sample the transparency lubricating oil.

Drawings

FIG. 1 is a structural diagram of the oil lubricated bearing seal of the present invention;

FIG. 2 is a structural view of the annular groove of the sealing device for oil lubricated bearing of the present invention;

FIG. 3 is a structural diagram of a measuring tube of the oil lubricated bearing sealing device of the present invention;

FIG. 4 is a structural view of a rotating ring of the oil lubricated bearing seal of the present invention;

reference numbers in the figures: 1. a housing; 2. a bearing housing; 3. a motor spindle; 4. a bearing; 5. a fixing ring; 6. a motor end cover; 7. an oil return groove; 8. an extension plate; 9. an oil slinger; 10. an annular groove; 11. a rotating ring; 12. a dust ring; 13. an oil delivery pipe; 14. a measurement tube; 15. an on-off valve; 16. sliding the seal ring; 17. a viewing port; 18. and (4) an observation window.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

As shown in fig. 1-4, an oil lubricated bearing sealing device comprises a housing 1, a bearing box 2 is arranged at one end of the housing 1, a motor spindle 3 is arranged in an inner cavity of the bearing box 2, the motor spindle 3 penetrates through the bearing box 2 and the housing 1, a bearing 4 is arranged in the inner cavity of the bearing box 2, the bearing 4 is sleeved outside the motor spindle 3, a fixing ring 5 is arranged at one side of the bearing 4, the fixing ring 5 is fixedly connected with the motor spindle 3, a motor end cover 6 is arranged outside the fixing ring 5, the motor end cover 6 is connected with the housing 1 through a fixing bolt, an oil return groove 7 is arranged inside the motor end cover 6, lubricating oil thrown out by the oil slinger 9 can be intercepted, the lubricating oil is prevented from flowing out of the bearing box 2, oil leakage is caused, and lubrication of the bearing 4 is influenced, an extension plate 8 is arranged at the right side of the oil return groove 7, the extension plate 8 is arranged outside the motor end cover 6, the oil slinger 9 is arranged at one side of the fixing ring 5, the lubricating oil can be brought up through rotation, the oil supply effect for the bearing 4 is achieved, meanwhile, the bearing bush is cooled, the oil slinger 9 is connected with the motor spindle 3 through threads, the oil slinger 9 covers one end of the oil return groove 7, the inner wall of the extension plate 8 is provided with the annular groove 10, the inner side of the annular groove 10 is provided with the rotating ring 11, the dustproof ring 12 can be supported and fixed, the dustproof ring 12 on the rotating ring 11 and the dustproof ring 12 in the annular groove 10 are fixed relatively, contact is avoided, the dustproof rings 12 are arranged on the outer side of the rotating ring 11 and the inner cavity of the annular groove 10, a barrier can be formed, dust is prevented from entering the motor end cover 6 through a gap between the motor spindle 3 and the motor end cover 6, an oil conveying pipe 13 is arranged below the motor spindle 3, the oil conveying pipe 13 penetrates through the motor end cover 6, one end of the oil conveying pipe 13 is connected with a measuring pipe 14, can the clear oil mass that shows, avoid the oil mass too little, influence bearing 4 lubrication, can judge whether will change lubricating oil through the transparency of observing lubricating oil simultaneously, survey 14 bottoms of buret and install ooff valve 15, can conveniently change lubricating oil and sample.

More specifically, solid fixed ring 5 suit is in the 3 outsides of motor spindle, and solid fixed ring 5 is connected with the laminating of motor spindle 3, be equipped with sealed the pad between casing 1 and the motor end cover 6, and motor end cover 6 lateral wall is the arc structure, rotatory ring 11 comprises two semicircle rings, and through fixed screw connection between two semicircle rings, dust ring 12 on the rotatory ring 11 sets up with the dust ring 12 interval of annular groove 10 inner chamber, be equipped with slip sealing washer 16 between 8 right-hand members of extension board and the motor spindle 3, survey buret 14 and be connected with defeated oil pipe 13 through threaded sleeve pipe, survey buret 14 right-hand member and be connected with viewing aperture 17, viewing aperture 17 lateral wall is inlayed and is had viewing window 18, be equipped with the scale mark on the viewing window 18.

The utility model discloses the theory of operation: when the motor works, the motor spindle 3 rotates, the oil slinger 9 rotates, the lubricating oil is thrown up, oil is supplied to the bearing 4, the lubricating oil slides downwards through the inner wall of the motor end cover 6, the oil return groove 7 intercepts the lubricating oil, the lubricating oil flows to the bottom of the bearing box 2 and is prevented from leaking, the sliding seal ring 16 and the dust ring 12 can intercept dust, the dust is prevented from entering through a gap between the motor end cover 6 and the motor spindle 3, the liquid level height and the transparency of the lubricating oil are observed through the observation window 18, and whether the lubricating oil needs to be replaced and added is judged.

The above is the preferred embodiment of the present invention, and the technical personnel in the field of the present invention can also change and modify the above embodiment, therefore, the present invention is not limited to the above specific embodiment, and any obvious improvement, replacement or modification made by the technical personnel in the field on the basis of the present invention all belong to the protection scope of the present invention.

Claims

1. The utility model provides an oil lubrication bearing sealing device, including the motor spindle of the bearing box and the casing that runs through that casing, casing one end set up, bearing box inner chamber were equipped with, the suit of bearing box inner chamber installation is at the bearing in the motor spindle outside, bearing one side set up with motor spindle fixed connection's solid fixed ring and solid fixed ring outside set up with casing fixed connection's motor end cover, its characterized in that: the utility model discloses a motor end cover, including motor end cover, oil slinger, extension board, fixed ring one side is equipped with the oil slinger, just the oil slinger passes through the screw thread to be connected with the motor main shaft to be located oil slinger one end, be equipped with the annular groove on the extension inboard wall, the annular groove inboard is equipped with rotatory ring, rotatory ring outside all is equipped with the dirt proof ring with annular groove inner chamber, motor main shaft below is equipped with defeated oil pipe, just defeated oil pipe runs through the motor end cover, defeated oil pipe one end is connected with surveys buret, survey the ooff valve is installed to buret bottom.

2. The oil-lubricated bearing sealing device according to claim 1, wherein: the fixed ring is sleeved on the outer side of the motor main shaft, and the fixed ring is connected with the motor main shaft in a laminating manner.

3. The oil-lubricated bearing sealing device according to claim 1, wherein: a sealing gasket is arranged between the shell and the motor end cover, and the side wall of the motor end cover is of an arc-shaped structure.

4. The oil-lubricated bearing sealing device according to claim 1, wherein: the rotating ring is composed of two semicircular rings, the two semicircular rings are connected through fixing screws, and the dustproof ring on the rotating ring is arranged at an interval with the dustproof ring in the inner cavity of the annular groove.

5. The oil-lubricated bearing sealing device according to claim 1, wherein: and a sliding sealing ring is arranged between the right end of the extension plate and the motor spindle.

6. The oil-lubricated bearing sealing device according to claim 1, wherein: the measuring tube is connected with the oil delivery tube through a threaded sleeve, the right end of the measuring tube is connected with an observation port, the side wall of the observation port is inlaid with an observation window, and the observation window is provided with scale marks.