A double groove upper roller bearing structure for textile machinery

Abstract

This utility model discloses a double-groove upper roller bearing structure for textile machinery, relating to the technical field of upper roller bearings. The utility model includes a mandrel with an oil storage chamber at its upper interior. A support sleeve is connected to the upper interior of the oil storage chamber, and a sealing sleeve is connected to the top of the support sleeve. An oil injection hole is located at the top of the sealing sleeve, and a check valve is connected to the bottom of the sealing sleeve. A flow-limiting layer is provided within the inner ring of the oil storage chamber. Oil delivery holes are located on both sides of the mandrel, and a cover plate is connected to one end of the mandrel. This utility model, through the oil storage chamber, flow-limiting layer, and oil delivery holes, allows for the storage of spare lubricating oil in the oil storage chamber. The lubricating oil, under the influence of gravity, passes through the oil delivery holes into the bushing, thus replenishing the lubricating oil lost at the microscopic level or evaporated. Furthermore, the micropore size of the flow-limiting layer controls the lubricating oil seepage rate, preventing a large amount of lubricating oil from rapidly passing through the oil delivery holes into the bushing, which would lead to excessive lubrication and increased resistance. This facilitates slow, continuous, and automatic replenishment of lubricating oil.

Description

Technical Field

[0001] This utility model relates to the field of upper roller bearing technology, specifically a double groove upper roller bearing structure for textile machinery. Background Technology

[0002] The upper roller bearing is a high-precision, high-performance bearing that plays an important role in textile machinery. It is mainly used to support and rotate the upper roller and needs to withstand high loads and high-speed operation to ensure the normal operation and efficient production of textile machinery.

[0003] Although sealing rings are installed during the use of upper roller bearings, it is still difficult to avoid minor leakage, such as oil film escape at the microscopic level and base oil evaporation. These will cause the lubricating oil to decrease very slowly during continuous operation. When the lubricating oil is low, the upper roller bearing needs to be disassembled and reapplied or injected with lubricating oil, which is a relatively cumbersome operation. Utility Model Content

[0004] Therefore, the purpose of this utility model is to provide a double groove upper roller bearing structure for textile machinery to solve the technical problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a double-groove upper roller bearing structure for textile machinery, comprising a mandrel, an oil storage cavity being provided inside the upper part of the mandrel, a support sleeve being connected inside the upper part of the oil storage cavity, a sealing sleeve being connected to the top of the support sleeve, an oil injection hole being provided at the top of the sealing sleeve, a check valve being connected to the bottom of the sealing sleeve, a flow-limiting layer being provided in the inner ring of the oil storage cavity, oil delivery holes being provided on both sides of the mandrel, and a cover plate being connected to one end of the mandrel.

[0006] By adopting the above technical solution, when it is necessary to replenish lubricating oil into the oil reservoir, the operator uses an Allen wrench to rotate and remove the cover plate. Then, the operator draws lubricating oil using a syringe with a flat-tipped needle, and inserts the needle through the oil injection hole. When the needle passes through the oil injection hole, it opens the check valve. The operator can then push the lubricating oil in the syringe into the oil delivery chamber. After the oil is injected, the operator removes the needle. At this time, the check valve's own elasticity allows it to return to its original shape and block the oil injection hole, preventing lubricating oil from flowing back and causing waste. The operator then puts the cover plate back and tightens it with an Allen wrench to prevent the sealing sleeve from falling off and to prevent oil leakage. The oil reservoir stores spare lubricating oil. The lubricating oil will be affected by gravity and pass through the oil delivery hole into the bushing to fill the lubricating oil that has been lost, evaporated, or evaporated at the microscopic level. The micropore size of the flow-limiting layer controls the lubricating oil seepage rate, preventing a large amount of lubricating oil from quickly passing through the oil delivery hole into the bushing, which would cause excessive lubrication and increase resistance in the bushing.

[0007] Furthermore, the top of the cover plate is provided with a hexagonal groove, and the cover plate is threadedly connected to the mandrel.

[0008] By adopting the above technical solution, workers can use an Allen wrench to rotate and remove the cover plate, making the operation simple and convenient.

[0009] Furthermore, the support sleeve is fixedly connected to the spindle by welding, and the sealing sleeve is interference-fitted with the oil storage cavity.

[0010] By adopting the above technical solution, during production, workers first drill three holes on the end face of the mandrel, with the diameter of the three holes gradually decreasing to form an oil storage cavity, and then tap threads on the end face of the mandrel. Next, workers drill holes on the outer ring of the mandrel to form oil delivery holes. Then, workers cut and attach a microporous nylon filter to the inner ring of the oil storage cavity to form a flow-limiting layer. Next, workers place a support sleeve into the oil storage cavity and weld or fully weld the end of the support sleeve furthest from the flow-limiting layer to fix the support sleeve to the mandrel, and clean the weld seam. Then, workers insert a sealing sleeve with a diameter slightly larger than the diameter of the oil storage cavity into the oil storage cavity, using an interference fit to achieve positioning, and the support sleeve also limits the sealing sleeve, preventing it from going too deep into the oil storage cavity and encroaching on the oil storage space. Finally, workers install a cover plate on the end face of the bushing using a threaded connection.

[0011] Furthermore, both the sealing sleeve and the check valve are made of fluororubber material, and the sealing sleeve and the check valve are fixedly connected by integral molding.

[0012] By adopting the above technical solution, fluororubber has good oil resistance, and the one-piece molding facilitates installation and prevents the check valve from falling off.

[0013] Furthermore, the anti-reverse valve is provided in multiple forms, and the multiple anti-reverse valves are distributed in a ring array.

[0014] By adopting the above technical solution, the anti-reverse valve can be restored to its original shape and block the oil injection hole by its own elasticity, thus preventing the lubricating oil from flowing back and causing waste.

[0015] Furthermore, the flow-limiting layer is a microporous nylon filter.

[0016] By adopting the above technical solution, the seepage rate of lubricating oil is controlled by the micropore size of the flow-limiting layer, which avoids a large amount of lubricating oil from quickly passing through the oil delivery hole into the bushing, resulting in excessive lubrication and increased resistance in the bushing.

[0017] Furthermore, a bushing is fitted around the mandrel, and two sets of needle rollers, two sets of retainers, and two sealing rings are provided between the mandrel and the bushing.

[0018] By adopting the above technical solution, it is easier to support the upper roller, so that the upper roller can rotate stably and reduce wear during operation.

[0019] Furthermore, multiple oil delivery holes are provided, and all multiple oil delivery holes are distributed in a ring array.

[0020] By adopting the above technical solution, the installation direction is not limited, and oil can be transported regardless of the installation direction or angle.

[0021] Furthermore, the plurality of oil supply holes are divided into two groups, and the two groups of oil supply holes are respectively located below one group of needle rollers and above the other group of needle rollers.

[0022] By adopting the above technical solution, the oil supply hole is brought closer to the needle roller so that the lubricating oil can come into contact with the needle roller more quickly.

[0023] In summary, the present invention has the following main advantages:

[0024] 1. This utility model, through the setting of an oil storage chamber, a flow-limiting layer, and an oil delivery hole, stores spare lubricating oil in the oil storage chamber. The lubricating oil, under the influence of gravity, passes through the oil delivery hole into the bushing, thereby replenishing the lubricating oil lost at the microscopic level and evaporated or volatilized. Furthermore, the seepage rate of the lubricating oil is controlled by the micropore size of the flow-limiting layer, preventing a large amount of lubricating oil from rapidly passing through the oil delivery hole into the bushing, which would lead to excessive lubrication and increased resistance in the bushing. It facilitates slow, continuous, and automatic replenishment of lubricating oil.

[0025] 2. This utility model, through the design of a cover plate, support sleeve, sealing sleeve, oil injection hole, and check valve, allows for easy replenishment of lubricating oil into the oil storage chamber. The cover plate is removed by rotating it with an Allen wrench. Lubricating oil is then drawn into the chamber using a syringe with a flat-headed needle. The needle is then inserted through the oil injection hole, opening the check valve and allowing the lubricating oil to be pushed into the oil delivery chamber. After injection, the needle is removed, and the check valve's elasticity restores its original shape, blocking the oil injection hole and preventing backflow of lubricating oil. The cover plate is then replaced and tightened with an Allen wrench to prevent the sealing sleeve from falling off and to prevent oil leakage. This design is simple, time-saving, and labor-saving, eliminating the need to completely disassemble the upper roller bearing. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of this utility model;

[0027] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0028] Figure 3 For the present utility model Figure 2 Enlarged view of the structure at point A in the image;

[0029] Figure 4 This is a bottom view of the sealing sleeve structure of this utility model.

[0030] In the diagram: 1. Mandrel; 2. Bushing; 3. Needle roller; 4. Cage; 5. Sealing ring; 6. Cover plate; 7. Support sleeve; 8. Sealing sleeve; 9. Oil injection hole; 10. Check valve; 11. Oil reservoir; 12. Flow restriction layer; 13. Oil delivery hole. Detailed Implementation

[0031] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0032] The embodiments of this utility model will be described below based on its overall structure.

[0033] Example 1:

[0034] A double-groove upper roller bearing structure for textile machinery, such as Figures 1-4 As shown, the device includes a mandrel 1, an oil storage chamber 11 with an upper part inside the mandrel 1, a support sleeve 7 connected to the upper part inside the oil storage chamber 11, the support sleeve 7 being fixedly connected to the mandrel 1 by welding, a sealing sleeve 8 connected to the top of the support sleeve 7, the sealing sleeve 8 being press-fitted with the oil storage chamber 11, an oil injection hole 9 with an opening at the top of the sealing sleeve 8, and a check valve 10 connected to the bottom of the sealing sleeve 8. Both the sealing sleeve 8 and the check valve 10 are made of fluororubber material and are fixedly connected by integral molding. Multiple check valves 10 are provided and are distributed in a ring array. A flow-limiting layer 12 is provided in the inner ring of the oil storage chamber 11. Oil delivery holes 13 are provided on both sides of the mandrel 1. A cover plate 6 is connected to one end of the mandrel 1, and six openings are provided on the top of the cover plate 6. The cover plate 6 is threadedly connected to the spindle 1 with a lateral groove. When it is necessary to add lubricating oil to the oil storage chamber 11, the operator uses an Allen wrench to rotate and remove the cover plate 6. Then, the operator uses a syringe with a flat-headed needle to draw lubricating oil and then passes the flat-headed needle through the oil injection hole 9. When the flat-headed needle passes through the oil injection hole 9, it pushes open the check valve 10. Then, the operator can push the lubricating oil in the syringe into the oil delivery chamber. After the oil injection is completed, the operator removes the flat-headed needle. At this time, the check valve 10 returns to its original shape due to its own elasticity and blocks the oil injection hole 9, preventing the lubricating oil from flowing back and causing waste. Then, the operator puts the cover plate 6 back and tightens the cover plate 6 with an Allen wrench to prevent the sealing sleeve 8 from falling off and to prevent oil leakage when the sealing sleeve 8 is in place.

[0035] See Figure 1 and Figure 2In the above embodiment, a bushing 2 is sleeved on the outside of the mandrel 1, and two sets of needle rollers 3, two sets of retainers 4 and two sealing rings 5 ​​are provided between the mandrel 1 and the bushing 2 to facilitate the support of the upper roller.

[0036] Example 2:

[0037] Based on the above embodiment 1, the following settings are made to facilitate contact between the lubricating oil and the needle roller 3.

[0038] See Figure 2 In the above embodiment, multiple oil supply holes 13 are provided, and the multiple oil supply holes 13 are distributed in a ring array, so that oil can be supplied regardless of the installation direction and angle; the multiple oil supply holes 13 are divided into two groups, and the two groups of oil supply holes 13 are respectively located below one group of needle rollers 3 and above the other group of needle rollers 3, so that the oil supply holes 13 are close to the needle rollers 3 so that the lubricating oil can contact the needle rollers 3 more quickly.

[0039] The implementation principle of this utility model is as follows: First, during production, the workers drill three holes on the end face of the mandrel 1, with the diameter of the three holes gradually decreasing to form an oil storage cavity 11, and tap threads on the end face of the mandrel 1; then, the workers drill holes on the outer ring of the mandrel 1 to form an oil delivery hole 13; then, the workers cut and paste a microporous nylon filter screen onto the inner ring of the oil storage cavity 11 to form a flow-limiting layer 12; then, the workers place the support sleeve 7 into the oil storage cavity 11, and weld or fully weld the end of the support sleeve 7 away from the flow-limiting layer 12 to fix the support sleeve 7 to the mandrel 1, and clean the weld seam; then, the workers insert a sealing sleeve 8 with a diameter slightly larger than the diameter of the oil storage cavity 11 into the oil storage cavity 11, and place it with an interference fit to complete the limiting, and limit the sealing sleeve 8 through the support sleeve 7 to prevent the sealing sleeve 8 from going too deep into the oil storage cavity 11 and encroaching on the oil storage space; finally, the workers install the cover plate 6 on the end face of the bushing 2 by means of threaded connection.

[0040] When it is necessary to add lubricating oil to the oil reservoir 11, the operator uses an Allen wrench to rotate and remove the cover plate 6. Then, the operator uses a syringe with a flat-tipped needle to draw lubricating oil and inserts the flat-tipped needle through the oil injection hole 9. When the flat-tipped needle passes through the oil injection hole 9, it pushes open the check valve 10. Then, the operator can push the lubricating oil in the syringe into the oil delivery chamber. After the oil injection is completed, the operator removes the flat-tipped needle. At this time, the check valve 10 returns to its original shape due to its own elasticity, blocking the oil injection hole 9 and preventing the lubricating oil from flowing back and causing waste. Then, the operator puts the cover plate 6 back and tightens the cover plate 6 with an Allen wrench to prevent the sealing sleeve 8 from falling off and to prevent oil leakage in conjunction with the sealing sleeve 8.

[0041] The oil storage chamber 11 stores spare lubricating oil. The lubricating oil will be affected by gravity and pass through the oil supply hole 13 into the bushing 2 to fill the lubricating oil that has been lost from the micro level or evaporated. The micropore size of the flow restriction layer 12 controls the seepage rate of the lubricating oil, and avoids a large amount of lubricating oil from quickly passing through the oil supply hole 13 into the bushing 2, which would cause excessive lubrication in the bushing 2 and increase resistance.

[0042] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A double groove top roller bearing construction for textile machinery comprising a mandrel (1) characterised in that: The mandrel (1) has an oil storage chamber (11) at the top inside, and a support sleeve (7) is connected to the top inside the oil storage chamber (11). A sealing sleeve (8) is connected to the top of the support sleeve (7). An oil injection hole (9) is opened at the top of the sealing sleeve (8). A check valve (10) is connected to the bottom of the sealing sleeve (8). A flow-limiting layer (12) is provided in the inner ring of the oil storage chamber (11). Oil delivery holes (13) are opened on both sides of the mandrel (1). A cover plate (6) is connected to one end of the mandrel (1).

2. The dual groove top roller bearing construction for textile machinery according to claim 1, characterized in that: The top of the cover plate (6) is provided with a hexagonal groove, and the cover plate (6) is threadedly connected to the spindle (1).

3. The dual groove top roller bearing construction for textile machinery according to claim 1, characterized in that: The support sleeve (7) is fixedly connected to the spindle (1) by welding, and the sealing sleeve (8) is interference-fitted with the oil storage cavity (11).

4. The double-groove upper roller bearing structure for textile machinery according to claim 1, characterized in that: The sealing sleeve (8) and the anti-reverse valve (10) are both made of fluororubber material, and the sealing sleeve (8) and the anti-reverse valve (10) are fixedly connected by integral molding.

5. The double-groove upper roller bearing structure for textile machinery according to claim 4, characterized in that: The anti-reverse valve (10) is provided in multiple ways, and the multiple anti-reverse valves (10) are distributed in a ring array.

6. The double-groove upper roller bearing structure for textile machinery according to claim 1, characterized in that: The flow-limiting layer (12) is a microporous nylon filter.

7. The double-groove upper roller bearing structure for textile machinery according to claim 1, characterized in that: The mandrel (1) is sleeved with a bushing (2), and two sets of needle rollers (3), two sets of retainers (4) and two sealing rings (5) are provided between the mandrel (1) and the bushing (2).

8. The double-groove upper roller bearing structure for textile machinery according to claim 7, characterized in that: The oil delivery holes (13) are provided in multiple ways, and the multiple oil delivery holes (13) are distributed in a ring array.

9. The double-groove upper roller bearing structure for textile machinery according to claim 8, characterized in that: The plurality of oil delivery holes (13) are divided into two groups, and the two groups of oil delivery holes (13) are located below one group of needle rollers (3) and above the other group of needle rollers (3), respectively.

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