Oil bearing and metallurgical production method thereof

Abstract

The invention belongs to the field of oil-retaining bearings, and particularly relates to an oil-retaining bearing and a metallurgical production method thereof. Cover plates are fixedly connected to the two ends of the base body; a rolling body is arranged on the inner ring of the cover plate; a plurality of rolling rods are arranged in the middle of the rolling body, oil in the base body can be driven to rotate along with rotation of the base body, meanwhile, the oil in the base body can be rapidly filled into the rolling body along with rotation and makes contact with the multiple rolling rods so that the self-lubricating purpose can be achieved, meanwhile, the base body can generate heat along with rotation in the rotating process, and therefore the self-lubricating effect can be achieved. The rolling rod expands along with generation of heat, a gap between the rolling rod and the base body becomes small, at the moment, the lubricating liquid enters the gap and continuously lubricates the bearing, after rotation stops, the base body is cooled, the gap is gradually recovered, the lubricating liquid in the base body can be backfilled into the base body again and stored, and when the base body rotates, the bearing can be continuously lubricated. And self-lubrication is generated, so that abrasion is reduced.

Description

Technical Field

[0001] The invention belongs to the field of oil-containing bearings, in particular to an oil-containing bearing and a metallurgical production method thereof. Background Art

[0002] Oil-containing bearings are a type of bearing, belonging to porous bearings, and are mainly made of metal powder as raw material.

[0003] When oil-containing bearings are produced, the bearing body needs to be immersed in lubricating liquid before leaving the factory. Therefore, when oil-containing bearings are used, only very little lubricating liquid or even no lubricating liquid is needed, and they have less wear.

[0004] It has been found through long-term use and observation that existing oil-containing bearings need to be deburred during the process of production to delivery. When deburring the oil-containing bearings, if the oil-containing bearings are deburred directly, the bearing body will move along with the deburring device during the deburring process, resulting in the deburring position being offset, thereby causing damage to the bearing body.

[0005] To this end, the present invention provides an oil-containing bearing and a metallurgical production method thereof. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve its technical problem is: the oil-containing bearing described in the present invention includes a base; both ends of the base are fixedly connected with cover plates; the inner ring of the cover plate is provided with a rolling body; the middle part of the rolling body is provided with a plurality of rolling rods; the plurality of rolling rods are equidistantly distributed and in contact with the base. Through the above structure, the base can be self-lubricated when rotating, thereby reducing wear, and the bearing has less noise when working.

[0008] Preferably, a metallurgical production method for an oil-containing bearing, the device is suitable for an oil-containing bearing proposed in the above claims, characterized in that the production method is as follows: S1: raw material powder preparation, mixing the prepared metal raw materials; S2: debugging and pressing, placing the fully mixed raw materials uniformly in a mold, and then placing them at the output end of a die-casting machine, and then die-casting the powder to obtain a prototype of a bearing; S3: high-temperature firing, placing the die-cast oil-containing bearing in a high-temperature firing furnace, and then firing the powder to form a bearing; S4: when the bearing is fired, the bearing can be taken out, and then a secondary pressing is performed to determine the size of the bearing; S5: after the bearing is processed for the second time, the bearing is placed on the top of a deburring device, the bearing is placed on the top of 1, and then the bearing is polished to achieve deburring of the bearing; S6: vacuum oil immersion, placing the processed bearing in a vacuum environment, and then immersing it in lubricating oil to ensure that the pores inside the bearing are filled with grease, thereby achieving self-lubrication; S7: after all the above steps are completed, the oil-containing bearing can be quality inspected, and then it can be packaged for use or sold.

[0009] Preferably, the raw material powder in S1 is prepared, wherein the raw materials include: copper powder and iron powder, the content of copper powder needs to be higher than that of iron powder, accounting for 70%-80%, and the iron powder accounts for 20%-30%, and then the raw materials are placed in a double cone mixer and mixed for 30-40 minutes, and then the raw materials can be collected.

[0010] Preferably, in the high temperature firing in S3, the initially pressed copper-iron powder is placed in a high temperature firing furnace for firing. The temperature of the firing furnace should be set between 150 degrees Celsius and 250 degrees Celsius. The firing time is no less than 1 hour and is maintained within 1 hour to 1 hour and 30 minutes.

[0011] Preferably, the vacuum oil immersion in S6 refers to placing the processed bearing in a vacuum environment and then immersing the bearing in oil. At this time, it should be ensured that the bearing is completely immersed in the oil and the immersion time is not less than 12 hours and is maintained between 12 hours and 24 hours.

[0012] Preferably, a metallurgical production method for oil-containing bearings, wherein the deburring device in S5 comprises a workbench; a first through hole is formed on the side wall of the workbench; a slide groove is formed on the top of the workbench; a telescopic rod is fixedly connected to the inner side wall of the slide groove; a sliding block is fixedly connected to the end of the telescopic rod; the sliding block slides inside the slide groove; an arc-shaped grinding plate is fixedly connected to the top of the sliding block; a second through hole is formed on the top of the workbench; the second through hole is located on the side of the slide groove; a support rod is fixedly connected to the bottom of the first through hole; the end of the support rod is fixedly connected to the inner side wall of the slide groove There is a motor; a protrusion is fixedly connected to the output end of the motor; the protrusion passes through the second through hole and extends to the top of the workbench; a groove is provided on the top of the protrusion; a fixing piece is detachably installed inside the groove; a limit ring is fixedly connected to the return head of the protrusion. Through the above structure, the bearing can be fixed when deburring and grinding the bearing, thereby reducing the position displacement of the bearing as the deburring process occurs, thereby reducing the deviation in grinding and ultimately causing damage to the bearing.

[0013] Preferably, a limit plate is fixedly connected to the bottom of the first through hole; a water tank is provided inside the limit plate; a water pipe is connected to the side wall of the water tank; the water pipe is bent; the end of the water pipe faces the protrusion; the end of the water pipe is connected to a conical cylinder; a grid plate is fixedly connected to the end of the conical cylinder. Through the above structure, the grinded bearing can be cooled, and the debris generated by grinding can flow out from the top of the workbench along with the flow of cleaning liquid, thereby reducing the occurrence of bearing damage caused by excessive temperature during deburring.

[0014] Preferably, a plurality of leakage holes are provided on the top of the workbench; the plurality of leakage holes are equidistantly distributed; baffles are fixedly connected to both side walls of the first through hole. Through the above structure, debris can fall to the bottom of the workbench with the flow of cleaning liquid, thereby realizing the collection and processing of metal debris, and reducing the difficulty in grinding the bearings caused by the accumulation of debris on the top of the workbench.

[0015] Preferably, a protective cover is fixedly connected to the middle part of the support rod; the protective cover is arranged in an arc shape, and the motor is located inside the protective cover. By setting up the protective cover, the motor can be protected, reducing the waste liquid and debris adsorbed on the surface of the motor, causing damage to the motor.

[0016] The beneficial effects of the present invention are as follows: 1. The oil-containing bearing and the metallurgical production method thereof described in the present invention reduce wear by allowing the base to self-lubricate when rotating, and the bearing also produces less noise when working.

[0017] 2. The oil-containing bearing and metallurgical production method thereof described in the present invention fix the bearing when deburring and grinding the bearing, thereby reducing the deviation in grinding and eventually causing bearing damage due to position displacement of the bearing during deburring. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below in conjunction with the accompanying drawings.

[0019] Figure 1 is a flow chart of the method of the present invention; Figure 2 It is a schematic structural diagram of the substrate in the present invention; Figure 3 It is a schematic diagram of the structure of the rolling body in the present invention; Figure 4 It is a schematic diagram of the structure of the grinding device in the present invention; Figure 5 It is a structural schematic diagram of the water tank in the present invention; Figure 6 It is a schematic diagram of the structure of the arc-shaped grinding plate in the present invention; Figure 7 It is a schematic diagram of the structure of the bump in the present invention In the figure: 1. workbench; 12. first through hole; 13. slide groove; 14. telescopic rod; 15. sliding block; 16. arc-shaped grinding plate; 17. second through hole; 18. protrusion; 19. limiting ring; 110. groove; 111. fixing piece; 112. motor; 113. support rod; 2. water tank; 21. water pipe; 22. conical cylinder; 23. grid plate; 24. limiting plate; 3. leakage hole; 31. baffle; 4. protective cover; 5. base; 51. cover plate; 52. rolling body; 53. rolling rod. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0021] like Figures 1 to 7As shown, an oil-containing bearing according to an embodiment of the present invention comprises a base 5; both ends of the base 5 are fixedly connected with a cover plate 51; the inner ring of the cover plate 51 is provided with a rolling body 52; a plurality of rolling rods 53 are provided in the middle of the rolling body 52; the plurality of rolling rods 53 are equidistantly distributed and in contact with the base 5. During operation, the base 5 is cleaned, and the base 5 and the rolling body 52 are cleaned synchronously, and then the base 5 is installed to a specified position. At this time, as the base 5 rotates, the oil inside the base 5 can be driven to rotate, and at the same time, as the base 5 rotates, the oil inside the base 5 will quickly fill the rolling body 5. The inside of the moving body 52 is in contact with multiple rolling rods 53 to achieve the purpose of self-lubrication. At the same time, when rotating, the base 5 will generate heat as it rotates, and the rolling rods 53 will expand as the heat is generated, and the gap between them and the base 5 will become smaller. At this time, the lubricating fluid enters the gap and continuously lubricates the bearing. When the rotation stops, the base 5 cools down, the gap is gradually restored, and the lubricating fluid inside the base 5 will be refilled into the inside of the base 5 and stored. Through the above structure, the base 5 can be self-lubricated when rotating, thereby reducing wear. At the same time, the bearing has less noise when working. like Figure 1 As shown, a metallurgical production method for an oil-containing bearing, which is applicable to an oil-containing bearing proposed in the above claims, and the production method is as follows: S1: raw material powder preparation, mixing the prepared metal raw materials; S2: debugging and pressing, placing the fully mixed raw materials in a mold, and then placing them at the output end of the die-casting machine, and then die-casting the powder to obtain the prototype of the bearing; S3: high-temperature firing, placing the die-cast oil-containing bearing in a high-temperature firing furnace, and then firing the powder to form a bearing; S4: when the bearing is fired, the bearing can be taken out, and then a secondary pressing is performed to determine the size of the bearing; S5: after the bearing is processed for the second time, the bearing is placed on the top of the deburring device, the bearing is placed on the top of the workbench 1, and then the bearing is polished to achieve deburring of the bearing; S6: vacuum oil immersion, placing the processed bearing in a vacuum environment, and then immersing it in lubricating oil to ensure that the pores inside the bearing are filled with grease, thereby achieving self-lubrication; S7: after all the above steps are completed, the oil-containing bearing can be quality inspected, and then it can be packaged for use or sold.

[0022] like Figure 1 As shown, the raw material powder in S1 is prepared, wherein the raw materials include: copper powder and iron powder. The content of copper powder needs to be higher than that of iron powder, accounting for 70%-80%, and the content of iron powder accounts for 20%-30%. The raw materials are then placed in a double cone mixer and mixed for 30-40 minutes before the raw materials are collected.

[0023] like Figure 1As shown, in the high temperature firing in S3, the copper-iron powder that has been initially pressed and formed is placed in a high temperature firing furnace for firing. The temperature of the firing furnace should be set between 150 degrees Celsius and 250 degrees Celsius. The firing time is no less than 1 hour and is maintained within 1 hour to 1 hour and 30 minutes.

[0024] like Figure 1 As shown, the vacuum oil immersion in S6 refers to placing the processed bearing in a vacuum environment and then immersing the bearing in oil. At this time, it should be ensured that the bearing is completely immersed in the oil and the immersion time is not less than 12 hours, and is maintained between 12 hours and 24 hours.

[0025] like Figures 4 to 7 As shown, the deburring device in S5 includes a workbench 1; a first through hole 12 is formed on the side wall of the workbench 1; a slide groove 13 is formed on the top of the workbench 1; a telescopic rod 14 is fixedly connected to the inner side wall of the slide groove 13; a sliding block 15 is fixedly connected to the end of the telescopic rod 14; the sliding block 15 slides inside the slide groove 13; an arc-shaped grinding plate 16 is fixedly connected to the top of the sliding block 15; a second through hole 17 is formed on the top of the workbench 1; the second through hole 17 is located on the side of the slide groove 13; the first through hole 1 2 is fixedly connected to the bottom of the support rod 113; the end of the support rod 113 is fixedly connected to the motor 112; the output end of the motor 112 is fixedly connected to the projection 18; the projection 18 penetrates the second through hole 17 and extends to the top of the workbench 1; the top of the projection 18 is provided with a groove 110; the interior of the groove 110 is detachably installed with a fixing member 111; the return head of the projection 18 is fixedly connected to a limit ring 19. When working, the fixing member 111 is pulled out from the middle of the groove 110, and then the fired bearing is placed In the middle of the second through hole 17, the bottom of the bearing will contact with the limiting ring 19 and be blocked by the limiting ring 19. Then, the fixing member 111 is reinstalled into the inside of the groove 110 to fix and limit the bearing. At the same time, the telescopic rod 14 is started. As the telescopic rod 14 is started, the output end of the telescopic rod 14 will perform a telescopic movement. At this time, the output end of the telescopic rod 14 will push the sliding block 15 to slide inside the slide groove 13, thereby driving the arc-shaped grinding plate 16 to gradually approach the side wall of the bearing. At the same time, the motor 1 is started. 12. As the motor 112 is started, the output end of the motor 112 will rotate and synchronously drive the protrusion 18 to rotate. At this time, the bearing located in the middle of the protrusion 18 will rotate synchronously and contact the side wall of the arc-shaped grinding plate 16. Through the above structure, the bearing can be fixed when the bearing is deburred and ground, thereby reducing the position displacement of the bearing as the bearing is deburred, thereby reducing the deviation in grinding and ultimately causing bearing damage.

[0026] like Figure 5 As shown, the bottom of the first through hole 12 is fixedly connected to a limit plate 24; a water tank 2 is arranged inside the limit plate 24; a water pipe 21 is connected to the side wall of the water tank 2; the water pipe 21 is bent; the end of the water pipe 21 faces the protrusion 18; the end of the water pipe 21 is connected to a conical cylinder 22; the end of the conical cylinder 22 is fixedly connected to a grid plate 23. When working, the cleaning liquid is filled in the water tank 2, and then the water pump in the water tank 2 is started. As the water pump is started, the cleaning liquid in the water tank 2 will fill the water pipe 21. , and as the water pump continues to start, the cleaning liquid will continue to flow along the contour of the water pipe 21, and flow to the end of the water pipe 21, and then spray out from the end of the water pipe 21. At this time, the sprayed cleaning liquid will be blocked by the mesh plate 23, and then spray out through the gap in the middle of the mesh plate 23. Through the above structure, the polished bearing can be cooled, and the debris generated by the polishing can be discharged from the top of the workbench 1 along with the flow of the cleaning liquid, thereby reducing the damage to the bearing caused by excessive temperature during deburring.

[0027] like Figures 4 to 7 As shown, a plurality of leakage holes 3 are provided on the top of the workbench 1; the plurality of leakage holes 3 are equidistantly distributed; baffles 31 are fixedly connected to both side walls of the first through hole 12. During operation, as the cleaning liquid is sprayed on the bearing, the bearing can be cooled down, and at the same time, the debris generated by grinding can flow synchronously with the flow of the cleaning liquid. At this time, a plurality of leakage holes 3 are provided, and the debris can pass through the leakage holes 3 into the interior of the first through hole 12 and be blocked by the baffles 31 at the same time. Through the above structure, the debris can fall to the bottom of the workbench 1 with the flow of the cleaning liquid, thereby realizing the collection and processing of metal debris, and reducing the difficulty in grinding the bearing caused by the accumulation of debris on the top of the workbench 1.

[0028] like Figure 5 As shown, a protective cover 4 is fixedly connected to the middle part of the support rod 113; the protective cover 4 is arranged in an arc shape, and the motor 112 is located inside the protective cover 4. During operation, by opening the leakage hole 3, debris and waste cleaning liquid can fall into the inside of the workbench 1. At this time, by setting the protective cover 4, the motor 112 can be protected, reducing the waste liquid and debris adsorbed on the surface of the motor 112, causing damage to the motor 112.

[0029] During operation, the base 5 is cleaned, and the base 5 and the rolling element 52 are cleaned synchronously, and then the base 5 is installed to the specified position. At this time, as the base 5 rotates, the oil inside the base 5 can be driven to rotate. At the same time, as the base 5 rotates, the oil inside the base 5 will quickly fill the inside of the rolling element 52 and contact with multiple rolling rods 53 to achieve the purpose of self-lubrication. At the same time, when rotating, the base 5 will heat up with the rotation, and the rolling rod 53 will expand with the heat generation, and the gap between it and the base 5 will become smaller. At this time, the lubricating liquid enters the gap and continuously lubricates the bearing. When the rotation stops, , the base 5 cools down, the gap gradually recovers, the lubricating fluid inside the base 5 will be refilled into the base 5 and stored, the fixing piece 111 is pulled out from the middle of the groove 110, and then the fired bearing is placed in the middle of the second through hole 17. At this time, the bottom of the bearing will contact with the limiting ring 19 and be blocked by the limiting ring 19, and then the fixing piece 111 is reinstalled into the inside of the groove 110 to fix and limit the bearing. At the same time, the telescopic rod 14 is started. As the telescopic rod 14 is started, the output end of the telescopic rod 14 will perform a telescopic movement. At this time, the output end of the telescopic rod 14 will push the sliding block 15 in the slide groove 13 slides inside, thereby driving the arc-shaped grinding plate 16 to gradually approach the side wall of the bearing, and at the same time, starting the motor 112. As the motor 112 is started, the output end of the motor 112 rotates, and synchronously drives the protrusion 18 to rotate. At this time, the bearing located in the middle of the protrusion 18 rotates synchronously and contacts the side wall of the arc-shaped grinding plate 16, and the cleaning liquid is filled in the water tank 2. Then, by starting the water pump inside the water tank 2, as the water pump is started, the cleaning liquid in the water tank 2 will be filled into the water pipe 21, and as the water pump is continuously started, the cleaning liquid will continue to flow along the contour of the water pipe 21, and And it flows to the end of the water pipe 21, and then sprays out from the end of the water pipe 21. At this time, the sprayed cleaning liquid will be blocked by the mesh plate 23, and then sprayed out through the gap in the middle of the mesh plate 23. As the cleaning liquid is sprayed on the bearing, the bearing can be cooled at this time, and the debris generated by grinding can flow synchronously with the flow of the cleaning liquid. At this time, a plurality of leakage holes 3 are opened, and the debris can pass through the leakage holes 3 into the interior of the first through hole 12 and be blocked by the baffle 31 at the same time. By opening the leakage holes 3, the debris and the waste cleaning liquid can fall into the interior of the workbench 1. At this time, by setting the protective cover 4, the motor 112 can be protected.

[0030] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An oil-containing bearing, comprising a base body (5); characterized in that: Both ends of the base (5) are fixedly connected with cover plates (51); the inner ring of the base (5) is provided with a rolling body (52); a plurality of rolling rods (53) are provided in the middle of the rolling body (52); the plurality of rolling rods (53) are equidistantly distributed and in contact with the base (5).

2. A metallurgical production method for an oil-containing bearing, the method being applicable to an oil-containing bearing as claimed in claim 1, characterized in that: The production method is as follows: S1: Raw material powder preparation, mixing the prepared metal raw materials; S2: Debugging and pressing, placing the fully mixed raw materials in a mold, and then placing them at the output end of the die-casting machine, and then die-casting the powder to obtain the prototype of the bearing; S3: high temperature firing, placing the die-cast oil-containing bearing in a high temperature firing furnace, and then firing the powder to form a bearing; S4: After the bearing is fired, it can be taken out and then pressed for the second time to determine the size of the bearing; S5: After the secondary processing of the bearing is completed, the bearing is placed on the top of the deburring device, the bearing is placed on the top of the workbench (1), and then the bearing is polished to achieve deburring of the bearing; S6: Vacuum oil immersion, placing the machined bearing in a vacuum environment and then immersing it in lubricating oil to ensure that the pores inside the bearing are filled with grease, thereby achieving self-lubrication; S7: After all the above steps are completed, the oil-containing bearing can be quality inspected and then packaged for use or sale.

3. The metallurgical production method of an oil-containing bearing according to claim 2, characterized in that: The raw material powder in S1 is prepared, wherein the raw materials include: copper powder and iron powder, the content of copper powder must be higher than that of iron powder, accounting for 70%-80%, and the iron powder accounts for 20%-30%. The raw materials are then placed in a double cone mixer and mixed for 30-40 minutes before the raw materials are collected.

4. The metallurgical production method of an oil-containing bearing according to claim 2, characterized in that: The high temperature firing in S3 is to place the initially pressed copper-iron powder in a high temperature firing furnace for firing. The temperature of the firing furnace should be set between 150 degrees Celsius and 250 degrees Celsius. The firing time is no less than 1 hour and is maintained within 1 hour to 1 hour and 30 minutes.

5. The metallurgical production method of an oil-containing bearing according to claim 2, characterized in that: The vacuum oil immersion in S6 refers to placing the processed bearing in a vacuum environment and then immersing the bearing in oil. At this time, it should be ensured that the bearing is completely immersed in oil and the immersion time is not less than 12 hours, and is maintained between 12 hours and 24 hours.

6. The metallurgical production method of an oil-containing bearing according to claim 2, characterized in that: The deburring device in S5 comprises a workbench (1); a first through hole (12) is formed on a side wall of the workbench (1); a slide groove (13) is formed on the top of the workbench (1); a telescopic rod (14) is fixedly connected to the inner side wall of the slide groove (13); a sliding block (15) is fixedly connected to the end of the telescopic rod (14); the sliding block (15) slides inside the slide groove (13); an arc-shaped grinding plate (16) is fixedly connected to the top of the sliding block (15); a second through hole (17) is formed on the top of the workbench (1); the second through hole (17) is located at On the side of the slide groove (13); a support rod (113) is fixedly connected to the bottom of the first through hole (12); a motor (112) is fixedly connected to the end of the support rod (113); a protrusion (18) is fixedly connected to the output end of the motor (112); the protrusion (18) passes through the second through hole (17) and extends to the top of the workbench (1); a groove (110) is formed on the top of the protrusion (18); a fixing member (111) is detachably installed inside the groove (110); and a limit ring (19) is fixedly connected to the return head of the protrusion (18).

7. The metallurgical production method of an oil-containing bearing according to claim 6, characterized in that: The bottom of the first through hole (12) is fixedly connected to a limit plate (24); a water tank (2) is provided inside the limit plate (24); a side wall of the water tank (2) is connected to a water pipe (21); the water pipe (21) is arranged in a bent state; an end of the water pipe (21) faces the protrusion (18); the end of the water pipe (21) is connected to a conical cylinder (22); and a mesh plate (23) is fixedly connected to the end of the conical cylinder (22).

8. The metallurgical production method of an oil-containing bearing according to claim 7, characterized in that: A plurality of leakage holes (3) are provided on the top of the workbench (1); the plurality of leakage holes (3) are distributed at equal intervals; and baffles (31) are fixedly connected to both side walls of the first through hole (12).

9. The metallurgical production method of an oil-containing bearing according to claim 8, characterized in that: A protective cover (4) is fixedly connected to the middle of the support rod (113); the protective cover (4) is arranged in an arc shape, and the motor (112) is located inside the protective cover (4).

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