CN212744728U - Self-lubricating bearing lubricating structure - Google Patents
Self-lubricating bearing lubricating structure Download PDFInfo
- Publication number
- CN212744728U CN212744728U CN202020707275.XU CN202020707275U CN212744728U CN 212744728 U CN212744728 U CN 212744728U CN 202020707275 U CN202020707275 U CN 202020707275U CN 212744728 U CN212744728 U CN 212744728U
- Authority
- CN
- China
- Prior art keywords
- oil
- bearing
- groove
- lubricating
- cover
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model discloses a self-lubricating bearing lubricating structure, which comprises a main shaft, a bearing outer cover, an oil injection nozzle, a bearing, an oil baffle plate, a bearing inner cover and an end cover; the bearing inner cover, the bearing, the oil baffle plate and the bearing outer cover are sequentially sleeved on the main shaft from front to back; the end cover is of a circular ring structure and is sleeved and connected on the bearing; an oil filling nozzle and a first oil filling hole are arranged on the outer bearing cover; a second oil filling hole is formed in the end cover; the bearing inner cover is of a circular ring structure, and an oil filling groove and an oil lubricating groove are formed in the rear end face of the bearing inner cover; the oil injection nozzle is communicated with the oil groove through the first oil injection hole, the second oil injection hole and the oil injection groove in sequence; the oil sliding groove is an annular groove and is arranged at the front end of the bearing steel ball groove in an opposite mode; an oil return groove is formed in the oil baffle plate; the oil return groove is an annular groove and is arranged at the rear end of the bearing steel ball groove in an opposite mode. The utility model discloses lubricated effect is strong, lubricating grease high-usage, simple structure, the product promotion of being convenient for.
Description
Technical Field
The utility model relates to a bearing lubrication structure, especially a bearing lubrication structure of self-lubricating.
Background
The motor is a device for converting electric energy into mechanical energy, and the bearing is a key part for connecting the stator and the rotor and ensuring the relative rotation of the motor, so the protection of the bearing is a key ring for ensuring the effective operation of the motor. Generally, the protection of the bearing is carried out by two parts of dust sealing and lubrication. Particularly in the lubrication part, along with the increasingly harsh working environment, the functional requirements on the bearing lubrication structure are also increasingly high, and the long-term participation of the grease of the bearing in lubrication is very important for the normal work of the bearing. Although the technical staff makes contributions to the lubricating protection work, for example, an oil filling groove is formed in the bearing to directly fill oil into the bearing for lubrication, lubricating grease enters from the oil groove, and an oil layer protection film is formed, so that when the bearing rotates, the abrasion between the steel ball and the roller path is reduced, the steel ball is well protected, the service life of the bearing is prolonged, and the bearing is better used. However, the amount of the grease used is not controlled, and may be too much or too little during the operation. Excessive grease can easily cause overheating of the bearing, increase the oil stirring loss and reduce the motor efficiency; also, too little grease can result in insufficient bearing lubrication. How to enhance the lubricating effect of the lubricating grease on the bearing while reducing the amount of oil injection is still a difficult problem to overcome.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a bearing lubrication structure of lubricated abundant self-lubricating of oil.
In order to solve the technical problem, the utility model discloses the technical scheme who takes is: a self-lubricating bearing lubricating structure comprises a main shaft, a bearing outer cover, an oil injection nozzle, a bearing, an oil baffle plate, a bearing inner cover and an end cover; the bearing inner cover, the bearing, the oil baffle plate and the bearing outer cover are sequentially sleeved on the main shaft from front to back; the end cover is of a circular ring structure and is sleeved and connected on the bearing; an oil filling nozzle and a first oil filling hole are arranged on the outer bearing cover; a second oil filling hole is formed in the end cover; the bearing inner cover is of a circular ring structure, and an oil filling groove and an oil lubricating groove are formed in the rear end face of the bearing inner cover; the oil injection nozzle is communicated with the oil groove through the first oil injection hole, the second oil injection hole and the oil injection groove in sequence; the oil sliding groove is an annular groove and is arranged at the front end of the bearing steel ball groove in an opposite mode; an oil return groove is formed in the oil baffle plate; the oil return groove is an annular groove and is arranged at the rear end of the bearing steel ball groove in an opposite mode.
In the self-lubricating bearing lubricating structure, the axial tangent plane of the lubricating oil groove is of an arc structure and comprises an outer arc section of the lubricating oil groove and an inner line section of the lubricating oil groove; the included angle between the tangent line of the outer arc section of the lubricating oil groove and the axis is 55-65 degrees.
In the self-lubricating bearing lubricating structure, the axial tangent plane of the oil return groove is of an arc structure and comprises an outer arc section of the oil return groove and an inner line section of the oil return groove; the included angle between the inner line segment of the oil return groove and the axis is 100-120 degrees, and the included angle between the tangent of the outer arc segment of the oil return groove and the axis is 55-65 degrees; the length of the inner line section of the oil return groove is 2-3 times of the diameter of the outer arc section of the oil return groove.
In the self-lubricating bearing lubricating structure, the oil return groove is provided with the blade; the vanes are located at the rear end of the oil return groove, are axially rearward and are aligned with the outer wall bearing of the oil return groove.
Adopt the produced beneficial effect of above-mentioned technical scheme to lie in: the utility model discloses a set up the oil groove and cooperate the oil gallery that is equipped with on the oil baffle plate to use in the bearing inner cup, get back to the bearing steel ball position once more at the centrifugation to the lubricating grease who pours into in the bearing into bearing part of lubricating grease after the bearing steel ball position jointly, realize the effect of self-lubricating, still improved the lubricating grease utilization ratio when having strengthened lubricated effect. The utility model discloses simple structure, lubricated effect are strong, lubricating grease high-usage.
The utility model also designs the conical surface of the lubricating oil groove and the oil return groove, and the inner side of the conical surface is smoothly connected, so that the lubricating grease can smoothly flow back, and the joint is matched with the inner ring and the outer ring of the bearing, thereby achieving the effect of accurate oil return; and the centrifugal lubricating grease can flow out quickly by arranging the blades. The utility model discloses the oil return is high-efficient, go out meat quick, simple structure, be convenient for produce the popularization.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic view of the oil baffle disc of the present invention;
FIG. 3 is a cross-sectional view of FIG. 2;
FIG. 4 is a schematic structural view of the inner cover of the bearing of the present invention;
fig. 5 is a sectional view of the portion a-a of fig. 4.
The reference numbers in the figures are: 1-main shaft, 2-sealing ring, 3-check ring, 4-oil baffle disc, 4-1-oil return groove, 4-2-oil return groove outer arc section, 4-3-oil return groove inner line section, 4-4-blade, 5-bearing outer cover, 5-1-first oil injection hole, 6-oil cup, 7-end cover, 7-1-second oil injection hole, 8-bearing inner cover, 8-1-oil groove, 8-2-oil groove inner line section, 8-3-oil groove outer arc section, 8-4-oil injection groove, 9-bearing and 10-oil outlet.
Detailed Description
Referring to fig. 1, 2 and 4, the self-lubricating bearing lubricating structure comprises a main shaft 1, a bearing outer cover 5, a bearing 9, an end cover 7, an oil baffle plate 4 and a bearing inner cover 8. The bearing inner cover 8, the bearing 9, the end cover 7, the oil baffle plate 4 and the bearing outer cover 5 are sequentially sleeved on the main shaft 1 from front to back. The bearing outer cover 5 is of a disc structure, and the bearing outer cover 5 comprises an inner ring part and an outer ring part. And the outer ring part is provided with an oil filling nozzle 6, an oil outlet 10 and a first oil filling hole 5-1. The oil injection nozzle 6 adopts an oil cup to inject oil into the bearing. The oil filling nozzle 6 and the oil outlet 10 are oppositely arranged at the highest part and the lowest part of the outer ring part of the bearing outer cover 5. The first oil filling hole is shaped like a '+', and penetrates the bearing outer cover 5 from the highest position of the outer ring part of the bearing outer cover 5 downwards to the front end of the bearing outer cover 5. A groove is formed in the inner ring part at the rear end of the outer bearing cover 5, the opening of the groove is forward, and an oil outlet chamber is formed at the bottommost part of the groove; the oil outlet chamber is communicated with the groove. The oil outlet chamber is communicated with the outside through an oil outlet 10 downwards, and is connected with the oil outlet 10 through a bolt in a non-oil injection state. The end cover 7 is of a circular ring structure, is forwards abutted against the rear end of the bearing inner cover 8 and backwards abutted against the front end of the bearing outer cover 5, and is sleeved and connected on the bearing 9 to form a sealing structure for preventing dust. And a second oil filling hole 7-1 is formed in the end cover 7. The second oil filling hole 7-1 is communicated with the first oil filling hole 5-1 at the outlet of the front end of the bearing outer cover 5 and axially penetrates through the front end and the rear end of the end cover 7. An oil filling groove 8-4 and an oil sliding groove 8-1 are formed in the bearing inner cover 8; the outer ring part of the oil filling groove 8-4 is communicated with the second oil filling hole 7-1, and the inner ring part is communicated with the oil sliding groove 8-1. The axial tangent plane of the oil-skating groove 8-1 is of an arc-shaped structure and comprises an outer arc section 8-3 of the oil-skating groove and an inner line section 8-2 of the oil-skating groove. The included angle between the tangent line of the outer arc section 8-3 of the oil-sliding groove and the axis is 55-65 degrees; the axis is the centre line of the main shaft 1. The outer arc section 8-3 of the oil chute is smoothly connected with the front end of the inner line section 8-2 of the oil chute; the oil groove inner line section 8-2 is linear or arc, and the length ratio of the oil groove inner line section 8-2 to the oil groove outer arc section 8-3 is (0.5-1): 1. The oil baffle 4 is close to the rear end of the bearing 9 and rotates along with the main shaft 1. The oil baffle plate 4 is a circular plate, and the front end of the oil baffle plate is provided with an oil return groove 4-1; the oil return groove 4-1 is communicated with the oil slide groove 8-1 through a steel ball part of the bearing 9. The axial tangent plane of the oil return groove 4-1 is of an arc structure and comprises an oil return groove outer arc section 4-2 and an oil return groove inner line section 4-3. The inner line segment 4-3 of the oil return groove is a straight line, and the included angle between the inner line segment and the axis is 100-120 degrees; the included angle between the tangent line of the outer arc section 4-2 of the oil return groove and the axis is 55-65 degrees; the length of the inner line segment 4-3 of the oil return groove is 2-3 times of the diameter of the outer arc segment of the oil return groove. The outer arc section 4-2 of the oil return groove is in smooth transition connection with the inner line section 4-3 of the oil return groove. The oil return groove 4-1 is provided with a blade 4-4; the blades 4-4 are positioned at the rear end of the oil return groove 4-1 and rotate along with the main shaft 1 to drive the lubricating grease thrown centrifugally into the oil outlet chamber.
Referring to fig. 1, the oil filling nozzle 6 is communicated with an oil filling groove 8-1 through a first oil filling hole 5-1 and a second oil filling hole 7-1 in sequence and the oil filling groove 8-4; the oil groove 8-1 is communicated with the oil return groove 4-1 through a steel ball part of the bearing 9; the oil return groove 4-1 is communicated with an oil outlet chamber through a gap and a clearance with the bearing outer cover 5 and is communicated with the outside through an oil outlet 10 to form a lubricating grease passage.
For a clearer description of the beneficial effects of the present invention, the following description is made in conjunction with the actual operation of oil injection lubrication.
Referring to fig. 1, 2, 3, 4 and 5, in a first step, a bearing inner cover 8, a bearing 9, an end cover 7, an oil baffle plate 4 and a bearing outer cover 5 are sequentially sleeved on a main shaft 1 from front to back; in the process, the first oil hole 5-1, the second oil hole 7-1 and the oil groove 8-4 are aligned to form an oil filling path; the oil groove 8-1 and the oil return groove 4-1 are aligned to fasten the inner ring and the outer ring of the bearing 9 to form a lubricating path and a self-lubricating structure. Then, a sealing ring 2 is sleeved and connected on the main shaft 1 at the rear end of the bearing outer cover 5, and the bearing inner cover 8, the end cover 7, the oil baffle plate 4 and the bearing outer cover 5 form a sealing structure to seal the bearing 9, so that the lubricating work of the bearing 9 is facilitated. And secondly, screwing out the bolt in the oil outlet 10, then injecting lubricating grease into the oil cup, and enabling the lubricating grease to flow through the oil injection path to enter the lubricating path and the self-lubricating structure. Lubricating grease directly flows through steel balls of the bearing 9 in a lubricating path, so that a lubricating effect is realized; in the self-lubricating structure, the lubricating oil groove 8-1 and the oil return groove 4-1 are conical surfaces and arranged at an included angle with the axial direction, so that an effect that part of lubricating oil is refluxed after the lubricating oil is centrifugally thrown out is achieved, and the effect of efficient lubrication is achieved. Thirdly, the oil baffle plate 4 is in clearance fit with the groove of the bearing outer cover 5, and a gap is reserved between the rear end of the oil baffle plate and the groove of the bearing outer cover 5, so that an oil outlet path is formed and communicated with the oil outlet chamber, part of lubricating grease is centrifugally thrown out, flows through the oil outlet path, enters the oil outlet chamber, and flows out from an oil outlet 10 at the lower end of the oil outlet chamber, and the bearing lubrication work is completed. In the process, as the blades 4-4 arranged on the side wall of the oil baffle plate 4 rotate along with the oil baffle plate 4, the lubricating grease thrown out by centrifugation is driven to quickly enter the oil outlet chamber, so that oil outlet is accelerated, and the whole oil injection and lubrication work is completed.
Claims (4)
1. A bearing lubricating structure of self-lubricating which characterized in that: comprises a main shaft (1), a bearing outer cover (5), an oil injection nozzle (6), a bearing (9), an oil baffle plate (4), a bearing inner cover (8) and an end cover (7); the bearing inner cover (8), the bearing (9), the oil baffle plate (4) and the bearing outer cover (5) are sequentially sleeved on the main shaft (1) from front to back; the end cover (7) is of a circular ring structure and is sleeved and connected on the bearing (9); an oil injection nozzle (6) and a first oil injection hole (5-1) are arranged on the bearing outer cover (5); a second oil hole (7-1) is formed in the end cover (7); the bearing inner cover (8) is of a circular ring structure, and an oil filling groove (8-4) and an oil lubricating groove (8-1) are formed in the rear end face of the bearing inner cover; the oil injection nozzle (6) is communicated with the oil groove (8-1) through a first oil injection hole (5-1), a second oil injection hole (7-1) and an oil groove (8-4) in sequence; the oil sliding groove (8-1) is an annular groove and is arranged right opposite to the front end of the steel ball groove of the bearing (9); an oil return groove (4-1) is formed in the oil baffle plate (4); the oil return groove (4-1) is an annular groove and is arranged right opposite to the rear end of the steel ball groove of the bearing (9).
2. A self-lubricating bearing lubrication structure according to claim 1, wherein: the axial tangent plane of the oil-skating groove (8-1) is of an arc-shaped structure and comprises an outer arc section (8-3) of the oil-skating groove and an inner line section (8-2) of the oil-skating groove; the included angle between the tangent of the outer arc section (8-3) of the oil groove and the axis is 55-65 degrees.
3. A self-lubricating bearing lubrication structure according to claim 1, wherein: the axial tangent plane of the oil return groove (4-1) is of an arc structure and comprises an oil return groove outer arc section (4-2) and an oil return groove inner line section (4-3); the included angle between the inner line segment (4-3) of the oil return groove and the axis is 100-120 degrees, and the included angle between the tangent of the outer arc segment (4-2) of the oil return groove and the axis is 55-65 degrees; the length of the inner line segment (4-3) of the oil return groove is 2-3 times of the diameter of the outer arc segment (4-2) of the oil return groove.
4. A self-lubricating bearing lubrication structure according to any one of claims 1 to 3, wherein: the oil return groove (4-1) is provided with a blade (4-4); the blade (4-4) is positioned at the rear end of the oil return groove (4-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020707275.XU CN212744728U (en) | 2020-04-30 | 2020-04-30 | Self-lubricating bearing lubricating structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020707275.XU CN212744728U (en) | 2020-04-30 | 2020-04-30 | Self-lubricating bearing lubricating structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212744728U true CN212744728U (en) | 2021-03-19 |
Family
ID=75003580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020707275.XU Active CN212744728U (en) | 2020-04-30 | 2020-04-30 | Self-lubricating bearing lubricating structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212744728U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114909403A (en) * | 2022-05-10 | 2022-08-16 | 深圳大华轴承有限公司 | High-precision super-miniature bearing |
-
2020
- 2020-04-30 CN CN202020707275.XU patent/CN212744728U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114909403A (en) * | 2022-05-10 | 2022-08-16 | 深圳大华轴承有限公司 | High-precision super-miniature bearing |
| CN114909403B (en) * | 2022-05-10 | 2023-08-22 | 深圳大华轴承有限公司 | High-precision miniature bearing |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1610036B1 (en) | A lubrication arrangement | |
| CN208571796U (en) | A kind of wear-resistant formula clutch gear motor | |
| CN207212734U (en) | A kind of anti-lock self-lubricating easy care centrifugal pump | |
| CN212744728U (en) | Self-lubricating bearing lubricating structure | |
| CN1065325C (en) | High speed centrifugal pump | |
| CN112377448B (en) | Automobile electronic water pump device | |
| CN206753976U (en) | It is provided with the one step single sucking cantilever centrifugal pump for getting rid of oily impeller | |
| CN109736951B (en) | Bearing lubricating and sealing system of rotor system of micro gas turbine | |
| CN207583622U (en) | A kind of full seal type Quimby pump and high-pressure balancing rotor | |
| CN209818691U (en) | Novel pure electric reduction gearbox | |
| CN208416979U (en) | A kind of turbo-driven submerged sewage pump | |
| CN115263487B (en) | Oil pumping device without additional power | |
| CN116394742A (en) | Cooling and lubricating device of electric drive assembly and electric drive assembly | |
| CN213125770U (en) | Permanent magnet motor of bearing oil-cooled air compressor | |
| CN210949156U (en) | Thrust bearing-free multistage centrifugal pump | |
| CN101881306A (en) | Shaft coupling of mechanical supercharger | |
| CN209856355U (en) | Sealed self-lubricating mechanism and electric tool thereof | |
| CN209245674U (en) | A kind of material crusher exempts from power fueller | |
| CN209321783U (en) | A kind of chain wheel device of drag conveyor | |
| CN113276375A (en) | Single-cylinder injection mechanism of centrifugal lubricating injection molding machine and injection molding machine with same | |
| CN109372597B (en) | Adjustable turbocharger | |
| JP2001140654A (en) | Bearing device for turbo charger | |
| CN216554619U (en) | High-pressure pump for seawater desalination | |
| CN218882969U (en) | Coupling device with cooling and lubricating structure | |
| CN218966667U (en) | Cooling and lubricating device of electric drive assembly and electric drive assembly |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |