A double groove bearing oil injection capping machine

Abstract

This application relates to the technical field of bearing processing, and in particular to a double groove bearing oil injection and capping machine, including a C-shaped frame, with support cylinders slidably passing through two horizontal sections of the C-shaped frame, and the two support cylinders being symmetrically distributed. A capping device is installed inside the support cylinder. The invention uses a vacuum suction head to adsorb and move the bearing cap upward, creating a negative pressure in the sealing area. This allows lubricating oil to be transported through the oil inlet pipe to the oil inlet groove, and then enters the sealing area through the oil inlet groove. Afterward, the drive gear reverses, and the push rod abuts against the sliding plate, causing the sliding plate to move downward and push the limiting ring. This causes the vacuum suction pipe to drive the vacuum suction head downward, pushing the bearing cap downward. The bearing cap then pushes the lubricating oil in the sealing area into the raceway of the double groove bearing, until the bearing cap is pressed against both sides of the raceway to prevent lubricating oil leakage, thereby completing one oil injection and capping of the double groove bearing.

Description

Technical Field

[0001] This application relates to the technical field of bearing processing, and in particular to a double groove bearing oil injection capping machine. Background Technology

[0002] Bearings are an indispensable key component in modern machinery, primarily used to support rotating shafts or other moving parts, reducing friction and wear during operation. There are many types of bearings, broadly categorized into rolling bearings and sliding bearings. Rolling bearings can be further subdivided into ball bearings, roller bearings, etc., with deep groove ball bearings being the most common. The performance of bearings directly affects the operating efficiency, precision, and lifespan of mechanical equipment.

[0003] Double groove bearings typically refer to a special design of deep groove ball bearings, which have two grooves on both the inner and outer rings to accommodate rolling elements (usually balls). This design allows the bearing to withstand greater radial and axial loads while providing higher rotational accuracy and stability.

[0004] During the bearing manufacturing process, an appropriate amount of grease is filled into the bearing to reduce friction and wear during operation and extend the bearing's service life. For double groove bearings, the grease filling process needs to ensure that the grease is evenly distributed in the two grooves and does not overflow to the outside of the bearing. Then, a metal or plastic cap is pressed onto the outer ring of the bearing to prevent grease leakage and to prevent external contaminants from entering the bearing.

[0005] For example, a bearing quantitative oil injection device with publication number CN117380475A relates to the technical field of bearing oil injection equipment. This prior art includes a frame, and a storage section, a transmission section and a discharge section are arranged sequentially along the feeding direction of the frame. An oil injection assembly is arranged in the middle area of ​​the transmission section. The oil injection assembly includes a power shaft and a transmission sleeve. The power shaft is connected to the frame. The transmission sleeve is connected to the power shaft and can slide along the axial direction. An oil outlet is arranged below the transmission sleeve.

[0006] However, the aforementioned existing technologies still have some shortcomings when it comes to lubricating bearings:

[0007] 1. In the prior art, when lubricating bearings, the oil delivery device transmits lubricating oil from the inlet ring to the inside of the outlet channel, and then discharges it through the outlet using pressure. During the output process, the stability of the oil flow rate is ensured by controlling the pressure, and the function of quantitative oil delivery is achieved by combining the oil delivery time. However, bearing oil is usually not made of ordinary oil, but of a specific type of grease. Grease is a semi-solid to solid lubricant composed of base oil, thickener and additives. The semi-solid or solid nature of grease means that its fluidity is much lower than that of liquid lubricating oil. During oil delivery, the grease may not flow smoothly in the pipes and nozzles of the oil delivery device, which may result in uneven oil delivery or insufficient oil delivery.

[0008] 2. The aforementioned prior art uses a third hydraulic cylinder to drive the transmission sleeve downwards, causing the oil outlet to be positioned at the rolling channel of the bearing. Subsequently, the control motor drives the transmission sleeve to rotate via the power shaft, and the oil delivery device delivers oil to the inside. The pressure oil outlet is used to apply lubricating oil during rotation. However, the semi-solid or solid nature of the grease used for bearing lubrication means that its fluidity is much lower than that of liquid lubricating oil. During the lubrication process of the transmission sleeve driving the bearing to rotate, some lubricating oil may overflow from the top. The overflow of grease means that the actual amount of grease applied to the bearing may be less than expected. This will lead to uneven lubrication of different parts of the bearing, affecting the bearing's operating performance and lifespan.

[0009] Although the scraper can be used to apply the grease again, it still affects the oiling effect. The overflowing grease will accumulate and adhere to the scraper's forward direction, making it impossible to effectively utilize the overflowing grease and wasting the lubricating material. Over time, this will also form residues that are difficult to remove.

[0010] Based on this, and given the above viewpoints, there is still room for improvement in the existing technology for bearing lubrication methods. Summary of the Invention

[0011] To solve the above-mentioned technical problems, this application provides a double-groove bearing oil injection capping machine, which adopts the following technical solution:

[0012] A double-groove bearing oil injection and capping machine includes a C-shaped frame, on which two horizontal sections of the C-shaped frame are slidably provided with support cylinders, and the two support cylinders are symmetrically distributed. A capping device for pressing the bearing cap is provided inside the support cylinder.

[0013] The capping device includes an outer ring disposed at the bottom of a support cylinder, and an inner ring disposed at the bottom of the support cylinder within the outer ring, forming an annular capping cavity between the outer ring and the inner ring.

[0014] Preferably, the capping device further includes a plurality of vacuum suction heads that are circumferentially slidably disposed in the capping cavity, the upper end of each vacuum suction head being provided with a vacuum suction tube communicating therewith, a sliding disk being slidably disposed in the support cylinder, and the upper end of the vacuum suction tube sequentially sliding through the bottom of the support cylinder and the sliding disk;

[0015] The vacuum suction tube is provided with a limiting ring located between the bottom of the support cylinder and the sliding disk, and a return spring is provided between the limiting ring and the bottom of the support cylinder.

[0016] Preferably, a support plate located above the sliding plate is provided inside the support cylinder, and a push rod that slidably passes through the support plate and abuts against the sliding plate is provided on the support plate.

[0017] Preferably, the outer ring includes several circumferentially evenly distributed arc-shaped plates that are slidably disposed at the bottom of the support cylinder. Arc-shaped grooves are formed on the arc-shaped plates, and an arc-shaped sliding plate is slidably disposed between two adjacent arc-shaped grooves.

[0018] Preferably, an arc-shaped guide block is provided on the outer side below the arc-shaped plate, and a guide slope is provided on the opposite side of the arc-shaped guide block.

[0019] Preferably, the inner ring includes an annular plate that is slidably disposed at the bottom of the support cylinder and corresponds one-to-one with the arc-shaped plate. The annular plate is provided with an annular groove, and an annular sliding plate is slidably disposed between two adjacent annular grooves.

[0020] The lower ends of the annular plate and the annular sliding plate are both provided with a guide slope.

[0021] Preferably, the vacuum suction head includes a vacuum support cover slidably disposed on an arc plate, and a vacuum suction cover slidably disposed on an annular plate and slidably connected to the vacuum support cover, and a suction hole is provided between the vacuum support cover and the vacuum suction cover;

[0022] The vacuum suction tube is located on the vacuum suction cover and is connected to the suction hole.

[0023] Preferably, the bottom of the support cylinder is provided with a sliding groove corresponding to the vacuum suction tube, and a sliding block is slidably disposed in the sliding groove; the sliding disk is provided with a sliding groove corresponding to the vacuum suction tube, and a sliding block is slidably disposed in the sliding groove.

[0024] One end of the vacuum suction tube slides through the corresponding sliding block and sliding block in sequence, and the reset spring is located between the sliding block and the limiting ring.

[0025] Preferably, an oil inlet is provided on the outer ring;

[0026] The oil inlet includes an oil inlet groove located on the lower side inside an arc-shaped sliding plate, and an oil inlet pipe communicating with the oil inlet groove is provided on the arc-shaped sliding plate.

[0027] Preferably, a driving component is provided on the U-shaped frame;

[0028] The driving component includes a driving support block disposed on the support cylinder, and a driving shaft that is rotatably connected to the shaped frame is disposed between two driving support blocks. The driving shaft is threadedly connected to the driving support block.

[0029] In summary, this application includes at least one of the following beneficial technical effects:

[0030] 1. This invention drives a vacuum suction tube to move a vacuum suction head upwards, which in turn lifts the bearing cap upwards. This upward movement increases the size of the sealing area, creating a negative pressure within the sealing area. Lubricating oil is then transported through the oil inlet pipe to the oil inlet groove and into the sealing area. Subsequently, the drive gear reverses direction, causing the push rod to abut against the sliding disc, which moves downwards and pushes the limiting ring. This causes the vacuum suction tube to move the vacuum suction head downwards, pushing the bearing cap downwards. The bearing cap then pushes the lubricating oil from the sealing area into the raceway of the double groove bearing, until the bearing cap is pressed against both sides of the raceway to prevent lubricating oil leakage. This completes one oil filling and capping process for the double groove bearing.

[0031] 2. The present invention uses an adjusting screw that rotates through the support plate. The adjusting screw moves through the threaded connection with the support plate. At the same time, the adjusting screw rotates through the adjusting ring, causing the adjusting ring to move inside the support cylinder. This changes the position of the adjusting ring that restricts the sliding plate, thereby adjusting the amount of lubricating oil entering the plate. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the structure of the present invention.

[0033] Figure 2 This is a schematic diagram of the structure of the double groove bearing of the present invention.

[0034] Figure 3 This is a three-dimensional sectional view of the present invention.

[0035] Figure 4 This is a cross-sectional view of the capping device of the present invention.

[0036] Figure 5 This is the present invention. Figure 4 A magnified view of part A.

[0037] Figure 6 This is a schematic diagram of the structure of the driving component of the present invention.

[0038] Figure 7 This is a schematic diagram of the outer ring structure of the present invention.

[0039] Figure 8 This is a cross-sectional view of the outer ring of the present invention.

[0040] Figure 9 This is the present invention. Figure 8 A magnified view of section B.

[0041] Figure 10 This is a schematic diagram of the inner ring structure of the present invention.

[0042] Figure 11 This is a cross-sectional view of the inner ring of the present invention.

[0043] Figure 12 This is a bottom view of the vacuum suction head of the present invention.

[0044] Figure 13 This is the present invention. Figure 12 A magnified view of a portion of point C.

[0045] Figure 14 This is a schematic diagram of the structure of the airbag of the present invention.

[0046] Explanation of reference numerals in the attached drawings: 1. Double groove bearing; 11. Inner ring; 12. Outer ring; 13. Shaft; 14. Raceway; 15. Ball; 16. Bearing cap; 2. Chamfered frame; 21. Support cylinder; 3. Capping device; 31. Capping cavity; 32. Vacuum suction tube; 33. Sliding disc; 34. Limiting ring; 35. Return spring; 36. Support disc; 37. Push rod; 38. Drive gear; 4. Outer ring; 41. Arc-shaped plate; 42. Arc-shaped groove; 43. Arc-shaped sliding plate; 44. Arc-shaped guide block; 45. 5. Guide ramp; 6. Inner ring; 7. Annular plate; 8. Annular groove; 9. Annular slide plate; 10. Guide ramp; 11. Vacuum suction head; 12. Vacuum support cover; 13. Vacuum suction cover; 14. Suction hole; 15. Sliding groove; 16. Sliding block; 27. Sliding groove; 38. Sliding block; 49. Drive component; 10. Drive support block; 10. Drive shaft; 11. Oil inlet; 12. Oil inlet groove; 13. Oil inlet pipe; 14. Adjusting component; 15. Adjusting ring; 16. Adjusting screw; 17. Airbag. Detailed Implementation

[0047] The following is in conjunction with the appendix Figures 1 to 14 This application will be described in further detail.

[0048] This application discloses a double groove bearing oil injection and capping machine. By allowing lubricating oil to enter the sealing area and using the bearing cap to push the lubricating oil into the bearing, the bearing capping is completed at the same time as oil injection, thereby improving production efficiency.

[0049] Example 1:

[0050] Reference Figure 1 and Figure 2As shown, a typical double groove bearing 1 includes an inner ring 11 and an outer ring 12, with a shaft 13 coaxial with the center of the inner ring 11. When manufacturing the double groove bearing 1, the inner ring 11 is usually fitted inside the outer ring 12 to form a raceway 14 between the inner ring 11 and the outer ring 12. Then, a suitable number of balls 15 are placed in the raceway 14, and the inner and outer rings 12 are rotated to distribute the balls 15 evenly in the raceway 14. After that, lubricating oil is injected into the raceway 14, and the bearing cap 16 is pressed onto both sides of the raceway 14 to prevent lubricating oil leakage.

[0051] A double-groove bearing oil injection and capping machine includes a C-shaped frame 2, on which support cylinders 21 are slidably inserted on both horizontal sections of the C-shaped frame 2, and the two support cylinders 21 are symmetrically distributed. The capping device 3 is used to press the bearing cap 16.

[0052] After lubricating oil is injected into the raceway 14 of the double groove bearing 1, the double groove bearing 1 is transported to the space between the two support cylinders 21 using existing transport technology. The capping device 3 installed in the support cylinder 21 will pick up the bearing cap 16 by adsorption. The capping device 3 installed in the support cylinder 21 is used to press the bearing cap 16.

[0053] Then, the drive unit 7 set on the convex frame 2 is activated. The drive unit 7 will drive the two support cylinders 21 to move closer to each other on the convex frame 2. The capping device 3 will press the suction bearing cover 16 onto both sides of the raceway 14 to prevent lubricating oil leakage.

[0054] Reference Figure 3 , Figure 4 and Figure 5 As shown, specifically, the capping device 3 includes an outer ring 4 provided at the bottom of the support cylinder 21, and an inner ring 5 located inside the outer ring 4 at the bottom of the support cylinder 21. An annular capping cavity 31 is formed between the outer ring 4 and the inner ring 5. The capping cavity 31 is an annular cavity with an open lower end, used to accommodate the bearing cap 16.

[0055] After lubricating oil is injected into the raceway 14, the double groove bearing 1 is transported between the two support cylinders 21 using existing technology. At the same time, the bearing cover 16 is placed into the lower end of the capping cavity 31 using the existing feeding mechanism, and the bearing cover 16 is brought into contact with several vacuum suction heads 6 that are circumferentially slidable inside the capping cavity 31. At this time, the vacuum suction tube 32 connected to the upper end of the vacuum suction head 6 will draw air, so that a negative pressure is formed inside the vacuum suction head 6 to adsorb the bearing cover 16 into the capping cavity 31.

[0056] Then, the drive unit 7 set on the frame 2 is activated. The drive unit 7 will drive the two support cylinders 21 to move closer to each other on the frame 2. The support cylinders 21 will drive the outer ring 4 and the inner ring 5, so that the vacuum suction head 6 will drive the bearing cover 16 to contact the raceway 14 of the double groove bearing 1. At this time, the outer ring 4 will abut against the outer ring 12 of the double groove bearing 1, and the inner ring 5 will abut against the inner ring 11 of the double groove bearing 1. At the same time, the bearing cover 16 is located on the raceway 14 of the double groove bearing 1 under the drive of the vacuum suction tube 32, and the shaft 13 will penetrate into the interior of the inner ring 5, so as not to affect the movement of the support cylinder 21.

[0057] The support cylinder 21 has a sliding disk 33, and the upper end of the vacuum suction tube 32 slides through the bottom of the support cylinder 21 and the sliding disk 33 in sequence. The vacuum suction tube 32 is connected to the existing vacuum negative pressure equipment to achieve air extraction, so that a negative pressure is formed inside the vacuum suction head 6 to adsorb the bearing cover 16 into the pressure cover cavity 31.

[0058] A limiting ring 34 is provided on the vacuum suction tube 32 between the bottom of the support cylinder 21 and the sliding disk 33. A support disk 36 is provided inside the support cylinder 21 above the sliding disk 33. A push rod 37 that slides through the support disk 36 and abuts against the sliding disk 33 is provided on the support disk 36.

[0059] Subsequently, the drive gear 38, which is rotatably mounted on the support plate 36, is driven to rotate by the motor drive technology. The rotating drive gear 38 will drive the push rod 37 to move downward through the threaded connection with the push rod 37. The push rod 37 will abut against the sliding plate 33, causing the sliding plate 33 to move downward and push the limiting ring 34 mounted on the vacuum suction tube 32. The limiting ring 34 is located between the bottom of the support cylinder 21 and the sliding plate 33.

[0060] The movement of the limiting ring 34 will compress the reset spring 35 provided between the limiting ring 34 and the bottom of the support cylinder 21, causing the vacuum suction tube 32 to drive the vacuum suction head 6 to move downward, pressing the bearing cover 16 against both sides of the raceway 14 to prevent lubricating oil leakage. Then the vacuum suction tube 32 stops evacuating air from the vacuum suction head 6 to release the adsorption on the bearing cover 16.

[0061] Then, the drive gear 38 is reversed by the motor drive technology. The reversed drive gear 38 will drive the push rod 37 to move upward through the threaded connection with the push rod 37. At this time, the compressed return spring 35 will push the limit ring 34. The limit ring 34 will push the sliding disk 33 to make the vacuum suction tube 32 drive the vacuum suction head 6 to move upward. Since the vacuum suction tube 32 stops pumping air from the vacuum suction head 6, the upward movement of the vacuum suction head 6 will not pull the bearing cover 16, thus avoiding the bearing cover 16 from becoming loose.

[0062] Then the drive unit 7 drives the two support cylinders 21 to move away from each other on the frame 2, so that the support cylinders 21 drive the outer ring 4 and inner ring 5 back to the initial position. At the same time, the double groove bearing 1 that has been covered will be transported away by the existing transportation technology, and the double groove bearing 1 that needs to be covered will be transported between the two support cylinders 21, thus completing the cover of one side of the bearing.

[0063] Then, similarly, the bearing cover 16 is placed into the lower end of the capping cavity 31 through the existing feeding mechanism. At this time, the vacuum suction tube 32 will pump air again to create a negative pressure inside the vacuum suction head 6, so as to adsorb the bearing cover 16 into the capping cavity 31, thereby performing the next bearing capping.

[0064] Reference Figure 6 As shown, specifically, the driving component 7 includes a driving support block 71 provided on the support cylinder 21, and a driving shaft 73 that is rotatably connected to the shaped frame 2 is provided between the two driving support blocks 71.

[0065] The drive shaft 73 is driven to rotate by existing motor drive technology. The rotating drive shaft 73 is connected to the drive support block 71 by a thread, which causes the drive support block 71 to drive the support cylinder 21 to move.

[0066] After the vacuum suction head 6 adsorbs the bearing cover 16 into the capping cavity 31, the drive shaft 73 is driven to rotate by the existing motor drive technology. The rotating drive shaft 73 will drive the support cylinders 21 to move closer to each other through the drive support block 71. Conversely, when the vacuum suction tube 32 drives the vacuum suction head 6 to move downward and press the bearing cover 16 onto both sides of the raceway 14, after the vacuum suction tube 32 stops evacuating air from the vacuum suction head 6, the drive shaft 73 is driven to reverse by the existing motor drive technology. The reversed drive shaft 73 will drive the support cylinders 21 to move away from each other through the drive support block 71.

[0067] Example 2:

[0068] Reference Figure 7 , Figure 8 , Figure 9 , Figure 10 and Figure 11 Based on Example 1, different models of double groove bearings 1 have different dimensions, especially key parameters such as the diameter and width of the inner ring 11 and outer ring 12, as well as the size of the bearing cap 16. The size of the gland cavity 31 formed on the inner ring 5 and outer ring 4 is always the same. The difference in size means that the fixed-size gland cavity 31 cannot effectively adapt to all models of bearings.

[0069] To address this issue, the outer ring 4 can be resized to accommodate different models of double groove bearings 1 that differ in size.

[0070] Specifically, the outer ring 4 includes several circumferentially evenly distributed arc-shaped plates 41 that are slidably disposed at the bottom of the support cylinder 21. Arc-shaped grooves 42 are provided on the arc-shaped plates 41. The arc-shaped plates 41 can slide along the bottom of the support cylinder 21, thereby changing the diameter of the outer ring 4. An arc-shaped sliding plate 43 is slidably disposed between two adjacent arc-shaped grooves 42. The arc-shaped sliding plate 43 slides relative to each other between two adjacent arc-shaped grooves 42, so that the arc-shaped plates 41 can move smoothly when the size of the outer ring 4 is adjusted.

[0071] When a larger bearing needs to be fitted, the arc plate 41 will slide outward to increase the diameter of the outer ring 4; conversely, when a smaller bearing needs to be fitted, the arc plate 41 will slide inward to decrease the diameter of the outer ring 4.

[0072] The drive unit 7 drives the two support cylinders 21 to move closer to each other on the frame 2. The support cylinders 21 drive the outer ring 4 and inner ring 5, so that the vacuum suction head 6 drives the bearing cover 16 to contact the raceway 14 of the double groove bearing 1. At this time, the arc plate 41 drives the arc guide block 44 set on its lower outer side. The guide slope 45 opened on the opposite side of the arc guide block 44 will abut against the inner side of the outer ring 12 of the double groove bearing 1, so that the arc guide block 44 drives the arc plate 41 to move. The arc plate 41 can slide along the bottom of the support cylinder 21, thereby adapting to the diameter of the outer ring 12.

[0073] Similarly, the inner ring 5 includes an annular plate 51 that is slidably disposed at the bottom of the support cylinder 21 and corresponds one-to-one with the arc plate 41. The annular plate 51 has an annular groove 52. The annular plate 51 can slide along the bottom of the support cylinder 21, thereby changing the diameter of the inner ring 5. An annular slide plate 53 is slidably disposed between two adjacent annular grooves 52. The annular slide plate 53 slides relative to each other between two adjacent annular grooves 52, so that the annular plate 51 can move smoothly when adjusting the outer ring 4.

[0074] When a larger bearing needs to be fitted, the annular plate 51 will slide outward to increase the diameter of the inner ring 5; conversely, when a smaller bearing needs to be fitted, the annular plate 51 will slide inward to decrease the diameter of the inner ring 5.

[0075] The drive unit 7 will drive the two support cylinders 21 to move closer to each other on the frame 2. The support cylinders 21 will drive the outer ring 4 and the inner ring 5, so that the vacuum suction head 6 will drive the bearing cover 16 to contact the raceway 14 of the double groove bearing 1.

[0076] The lower ends of the annular plate 51 and the annular slide plate 53 are provided with a guide slope 54. The guide slope 54 will abut against the inner side of the shaft 13 of the double groove bearing 1, so that the annular plate 51 can slide along the bottom of the support cylinder 21, thereby adapting to the diameter of the inner ring 11.

[0077] The vacuum suction head 6 includes a vacuum support cover 61 that is slidably disposed on an arc plate 41, and a vacuum suction cover 62 that is slidably disposed on an annular plate 51 and slidably connected to the vacuum support cover 61.

[0078] When the arc plate 41 and the annular plate 51 move and change size, the arc plate 41 will drive the vacuum support 61 to move, and the annular plate 51 will drive the vacuum suction 62 to move together, thereby changing the size of the capping cavity 31. The vacuum support 61 and the vacuum suction 62 will extend and retract with the change of the capping cavity 31, and the suction hole 63 opened between the vacuum support 61 and the vacuum suction 62 will change accordingly.

[0079] That is, when the capping cavity 31 becomes larger, the vacuum support cover 61 and the vacuum suction cover 62 move to opposite sides, and the suction hole 63 opened by the two together will become larger. Conversely, when the capping cavity 31 becomes larger, the vacuum support cover 61 and the vacuum suction cover 62 move to opposite sides, and the suction hole 63 opened by the two together will become smaller.

[0080] Since the vacuum suction tube 32 is located on the vacuum suction cover 62, the annular plate 51 will drive the vacuum suction tube 32 to move together through the vacuum suction cover 62. The vacuum suction tube 32 is connected to the suction hole 63. The vacuum suction tube 32 will draw air, so that a negative pressure is formed inside the vacuum support cover 61 and the vacuum suction cover 62. The bearing cover 16 is adsorbed into the pressure cover cavity 31 through the suction hole 63.

[0081] To ensure the movement of the vacuum suction tube 32, the bottom of the support cylinder 21 is provided with a sliding groove 64 corresponding to the vacuum suction tube 32, and a sliding block 65 is slidably arranged in the sliding groove 64. The sliding disk 33 is provided with a sliding groove 66 corresponding to the vacuum suction tube 32, and a sliding block 67 is slidably arranged in the sliding groove 66.

[0082] One end of the vacuum suction tube 32 slides through the corresponding sliding block 65 and sliding block 67 in sequence. The movement of the vacuum suction tube 32 will drive the sliding block 65 and sliding block 67 to move in the corresponding sliding groove 64 and sliding groove 66. The return spring 35 is located between the sliding block 65 and the limiting ring 34. The movement of the vacuum suction tube 32 will drive the return spring 35 to move together.

[0083] Example 3:

[0084] Reference Figure 7 , Figure 8 and Figure 9 Based on Embodiment 1 and Embodiment 2, an oil inlet 8 is provided on the outer ring 4. The oil inlet 8 is used to inject lubricating oil into the raceway 14 before the bearing cover 16 is pressed onto both sides of the raceway 14.

[0085] Specifically, the oil inlet 8 includes an oil inlet groove 81 located on the lower side inside the arc-shaped slide plate 43. An oil inlet pipe 82 connected to the oil inlet groove 81 is provided on the arc-shaped slide plate 43. The oil inlet pipe 82 is used to deliver lubricating oil to the oil inlet groove 81 so that the lubricating oil enters the gland cavity 31.

[0086] When the outer ring 4 abuts against the outer ring 12 of the double groove bearing 1, the inner ring 5 abuts against the inner ring 11 of the double groove bearing 1, and the bearing cap 16 contacts the raceway 14 of the double groove bearing 1 under the action of the vacuum suction tube 32, a sealing area will be formed between the inner ring 5, the outer ring 4 and the bearing cap 16 on both sides of the bearing.

[0087] At this time, the motor drive technology drives the drive gear 38 to rotate. The rotating drive gear 38 will drive the push rod 37 to move downward first through the threaded connection with the push rod 37. The compressed return spring 35 will push the limit ring 34, and push the sliding disk 33 through the limit ring 34, so that the vacuum suction tube 32 drives the vacuum suction head 6 to pick up the bearing cover 16 and move upward.

[0088] The upward movement of the bearing cap 16 increases the size of the sealing area, creating a negative pressure within the sealing area. This allows lubricating oil to be transported through the oil inlet pipe 82 to the oil inlet groove 81, and then enters the sealing area through the oil inlet groove 81. Subsequently, the drive gear 38 is reversed by the motor drive technology. The reverse drive gear 38 drives the push rod 37 downward through the threaded connection with the push rod 37. The push rod 37 then abuts against the sliding plate 33, causing the sliding plate 33 to move downward and push the limiting ring 34 set on the vacuum suction tube 32.

[0089] The movement of the limiting ring 34 will compress the reset spring 35 set between the limiting ring 34 and the bottom of the support cylinder 21, causing the vacuum suction tube 32 to drive the vacuum suction head 6 to move downward. The suction head pushes the bearing cover 16 downward, and the bearing cover 16 will push the lubricating oil in the sealing area into the raceway 14 of the double groove bearing 1 until the bearing cover 16 is pressed against both sides of the raceway 14 to prevent the lubricating oil from leaking out, thereby completing one oil filling and capping of the double groove bearing 1.

[0090] It should be noted that the oil inlet pipe 82 is a one-way conveyor, that is, it can only convey lubricating oil into the gland cavity 31, thereby ensuring that when the bearing cover 16 pushes the lubricating oil into the raceway 14 of the double groove bearing 1, the lubricating oil will not flow back through the oil inlet pipe 82.

[0091] Example 4:

[0092] Reference Figure 3 As shown, based on Embodiment 3, an adjusting component 83 is provided inside the support cylinder 21. The adjusting component 83 is used to adjust the amount of lubricating oil entering the cylinder.

[0093] Specifically, the adjusting component 83 includes an adjusting ring 831 that is slidably disposed within the support cylinder 21 between the sliding disk 33 and the support disk 36.

[0094] When the drive gear 38 rotates, the rotating drive gear 38 will drive the push rod 37 to move downward through the threaded connection with the push rod 37. The compressed return spring 35 will push the limit ring 34, which will push the sliding disk 33 through the limit ring 34. This will cause the vacuum suction tube 32 to drive the vacuum suction head 6 to adhere to the bearing cover 16 and move upward until the sliding disk 33 contacts the adjusting ring 831. At this point, the sliding disk 33 will be restricted and stop moving. At the same time, the sliding disk 33 will restrict the movement of the vacuum suction tube 32 through the limit ring 34, causing the vacuum suction head 6 to adhere to the bearing cover 16 and stop moving.

[0095] The drive gear 38 continues to drive the push rod 37 upward to its limit position, causing the push rod 37 to disengage from the sliding disk 33. Then, the drive gear 38 reverses, and the reverse drive gear 38 drives the push rod 37 downward through the threaded connection with the push rod 37. The push rod 37 will abut against the sliding disk 33, causing the sliding disk 33 to move downward and push the limit ring 34 on the vacuum suction tube 32 to compress the return spring 35. This causes the vacuum suction tube 32 to drive the vacuum suction head 6 downward, which in turn pushes the bearing cover 16 downward. The bearing cover 16 pushes the lubricating oil in the sealing area into the raceway 14 of the double groove bearing 1 until the bearing cover 16 is pressed against both sides of the raceway 14 to prevent the lubricating oil from leaking out, thus completing one oil filling and capping of the double groove bearing 1.

[0096] Therefore, the amount of lubricating oil entering each time is determined by the amount of lubricating oil entering the sealing area. By rotating the adjusting screw 832 that is rotated through the support plate 36, the adjusting screw 832 will move through the threaded connection with the support plate 36. At the same time, the adjusting screw 832 will drive the adjusting ring 831 to move within the support cylinder 21 through the rotatable connection with the adjusting ring 831, thereby changing the position of the adjusting ring 831 that restricts the sliding plate 33, thus realizing the adjustment of the amount of lubricating oil entering the system.

[0097] Example 5:

[0098] Reference Figure 14 Based on Embodiments 3 and 4, since there may be a gap between the edge of the bearing cover 16 and the gland cavity 31, the sealing effect cannot be achieved, causing the lubricating oil in the sealing area to pass through the gap, affecting the final oil intake.

[0099] To solve this problem, an air bladder 9 is provided between multiple vacuum nozzles 6, located in the capping cavity 31. The air bladder 9 is located above the vacuum nozzles 6. The air bladder 9 can change with the size of the capping cavity 31 to fill the gap in the sealing area, ensuring that the lubricating oil in the sealing area cannot pass through the gap and ensuring the amount of lubricating oil entering.

[0100] The implementation principle of this invention is as follows:

[0101] (1): When filling the double groove bearing 1 with oil, the double groove bearing 1 is first transported between the two support cylinders 21. At the same time, the bearing cover 16 is placed into the lower end of the capping cavity 31 through the existing feeding mechanism, and the bearing cover 16 is brought into contact with the vacuum suction head 6. At this time, the vacuum suction tube 32 will draw air, so that a negative pressure is formed inside the vacuum suction head 6 to adsorb the bearing cover 16 into the capping cavity 31.

[0102] (2): Then the drive unit 7 will drive the two support cylinders 21 to move closer to each other on the frame 2. The support cylinders 21 will drive the outer ring 4 and the inner ring 5, so that the vacuum suction head 6 will drive the bearing cover 16 to contact the raceway 14 of the double groove bearing 1. At this time, the outer ring 4 will abut against the outer ring 12 of the double groove bearing 1, and the inner ring 5 will abut against the inner ring 11 of the double groove bearing 1. At the same time, when the bearing cover 16 is located on the raceway 14 of the double groove bearing 1 under the drive of the vacuum suction tube 32, a sealing area will be formed between the inner ring 5, the outer ring 4 and the bearing cover 16 on both sides of the bearing.

[0103] (3): The motor drive technology drives the drive gear 38 to rotate. The rotating drive gear 38 drives the push rod 37 to move downward first, while the compressed return spring 35 pushes the limit ring 34. The limit ring 34 pushes the sliding disk 33, so that the vacuum suction tube 32 drives the vacuum suction head 6 to pick up the bearing cover 16 and move it upward. The upward movement of the bearing cover 16 will increase the size of the sealing area, so that a negative pressure is formed in the sealing area, and the lubricating oil is transported to the oil inlet groove 81 through the oil inlet pipe 82, and then enters the sealing area through the oil inlet groove 81.

[0104] (4): The drive gear 38 will drive the push rod 37 to move downward first through the threaded connection with the push rod 37, and the compressed return spring 35 will push the limit ring 34, which will push the sliding disk 33 through the limit ring 34, so that the vacuum suction tube 32 will drive the vacuum suction head 6 to pick up the bearing cover 16 and move upward. The upward movement of the bearing cover 16 will increase the size of the sealing area, so that a negative pressure will be formed in the sealing area, and the lubricating oil will be transported to the oil inlet groove 81 through the oil inlet pipe 82, and then enter the sealing area through the oil inlet groove 81.

[0105] (5): Afterwards, the drive gear 38 reverses, and the reverse drive gear 38 will drive the push rod 37 to move downward through the threaded connection with the push rod 37. The push rod 37 will abut against the sliding disk 33, causing the sliding disk 33 to move downward and push the limiting ring 34 set on the vacuum suction tube 32.

[0106] (6): The movement of the limiting ring 34 will compress the limit return spring 35, causing the vacuum suction tube 32 to drive the vacuum suction head 6 to move downward. The suction head pushes the bearing cover 16 downward, and the bearing cover 16 will push the lubricating oil in the sealing area into the raceway 14 of the double groove bearing 1 until the bearing cover 16 is pressed on both sides of the raceway 14 to prevent the lubricating oil from leaking out, thus completing one oil filling and pressing of the double groove bearing 1.

[0107] (7): By rotating the adjusting screw 832 that is rotatably inserted on the support plate 36, the adjusting screw 832 will move through the threaded connection with the support plate 36. At the same time, the adjusting screw 832 will drive the adjusting ring 831 to move inside the support cylinder 21 through the rotatable connection with the adjusting ring 831, thereby changing the position of the adjusting ring 831 that restricts the sliding plate 33, thereby adjusting the amount of lubricating oil entering the system.

[0108] The embodiments described herein are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape, and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A double-groove bearing oil injection capping machine, comprising a U-shaped frame (2), characterized in that: The two horizontal sections of the shaped frame (2) are slidably provided with support cylinders (21), and the two support cylinders (21) are symmetrically distributed. The support cylinders (21) are provided with a capping device (3) for pressing the bearing cover (16). The capping device (3) includes an outer ring (4) provided at the bottom of the support cylinder (21), and an inner ring (5) located inside the outer ring (4) at the bottom of the support cylinder (21). An annular capping cavity (31) is formed between the outer ring (4) and the inner ring (5). The capping device (3) also includes a plurality of vacuum suction heads (6) that are circumferentially slidably arranged in the capping cavity (31). The upper end of the vacuum suction head (6) is provided with a vacuum suction tube (32) that communicates with it. A sliding disk (33) is slidably arranged in the support cylinder (21). The upper end of the vacuum suction tube (32) slides through the bottom of the support cylinder (21) and the sliding disk (33) in sequence. The vacuum suction tube (32) is provided with a limiting ring (34) located between the bottom of the support cylinder (21) and the sliding disk (33), and a return spring (35) is provided between the limiting ring (34) and the bottom of the support cylinder (21). The support cylinder (21) is provided with a support plate (36) located above the sliding plate (33), and a push rod (37) that abuts against the sliding plate (33) is slidably passed through the support plate (36).

2. The double groove bearing oil injection capping machine according to claim 1, characterized in that: The outer ring (4) includes several circumferentially evenly distributed arc plates (41) that are slidably disposed at the bottom of the support cylinder (21). Arc grooves (42) are provided on the arc plates (41), and arc slide plates (43) are slidably disposed between two adjacent arc grooves (42).

3. The double groove bearing oil injection capping machine according to claim 2, characterized in that: An arc-shaped guide block (44) is provided on the outer side below the arc-shaped plate (41), and a guide slope (45) is provided on the opposite side of the arc-shaped guide block (44).

4. A double-groove bearing oil injection capping machine according to claim 2, characterized in that: The inner ring (5) includes an annular plate (51) that is slidably disposed at the bottom of the support cylinder (21) and corresponds one-to-one with the arc plate (41). An annular groove (52) is provided on the annular plate (51), and an annular sliding plate (53) is slidably disposed between two adjacent annular grooves (52). The lower ends of the annular plate (51) and the annular slide plate (53) are provided with a guide slope (54).

5. A double-groove bearing oil injection capping machine according to claim 4, characterized in that: The vacuum suction head (6) includes a vacuum support cover (61) slidably disposed on an arc plate (41), and a vacuum suction cover (62) slidably disposed on an annular plate (51) and slidably connected to the vacuum support cover (61). A suction hole (63) is opened between the vacuum support cover (61) and the vacuum suction cover (62). The vacuum suction tube (32) is located on the vacuum suction cover (62) and is connected to the suction hole (63).

6. A double-groove bearing oil injection capping machine according to claim 5, characterized in that: The bottom of the support cylinder (21) is provided with a sliding groove (64) corresponding to the vacuum suction tube (32), and a sliding block (65) is slidably arranged in the sliding groove (64). The sliding disk (33) is provided with a sliding groove (66) corresponding to the vacuum suction tube (32), and a sliding block (67) is slidably arranged in the sliding groove (66). One end of the vacuum suction tube (32) slides through the corresponding sliding block (65) and sliding block (67) in sequence, and the reset spring (35) is located between the sliding block (65) and the limiting ring (34).

7. A double-groove bearing oil injection capping machine according to claim 2, characterized in that: An oil inlet (8) is provided on the outer ring (4); The oil inlet (8) includes an oil inlet groove (81) located on the lower side inside the arc-shaped slide plate (43), and an oil inlet pipe (82) connected to the oil inlet groove (81) is provided on the arc-shaped slide plate (43).

8. A double-groove bearing oil injection capping machine according to claim 1, characterized in that: The mortise frame (2) is provided with a driving component (7); The driving component (7) includes a driving support block (71) provided on the support cylinder (21), and a driving shaft (73) rotatably connected to the shaped frame (2) is provided between the two driving support blocks (71). The driving shaft (73) is threadedly connected to the driving support block (71).

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