CN213235775U - Self-lubricating wear-resistant miniature shaft - Google Patents
Self-lubricating wear-resistant miniature shaft Download PDFInfo
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- CN213235775U CN213235775U CN202021974342.0U CN202021974342U CN213235775U CN 213235775 U CN213235775 U CN 213235775U CN 202021974342 U CN202021974342 U CN 202021974342U CN 213235775 U CN213235775 U CN 213235775U
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Abstract
The utility model discloses a self-lubricating wear-resistant miniature shaft, which comprises a miniature shaft body, wherein a hard alloy reinforced layer is fixedly arranged on the outer surface of the miniature shaft body, and a chromium coating is fixedly arranged on the outer surface of the hard alloy reinforced layer; a connecting screw hole is axially formed in the middle of the right end face of the miniature shaft body, and an oil storage hole is axially formed in the connecting screw hole; the chromium coating is radially provided with a plurality of oil outlet through holes, the hard alloy reinforcing layer is radially provided with an oil transportation cotton through hole at the position which is aligned with each oil outlet through hole, the micro-shaft body is radially provided with an oil transportation channel at the position which is aligned with each oil transportation cotton through hole, the upper port of the oil transportation channel is communicated with the aligned oil transportation cotton through hole, and the lower port of the oil transportation channel is communicated with the oil storage hole; the oil transportation cotton is embedded in the oil transportation cotton through hole; the outer surface of the chromium coating is provided with a plurality of oil storage grooves. Above-mentioned technical scheme, structural design is reasonable, simple structure, lubricated effectual, the wearability is good, long service life and practicality are good.
Description
Technical Field
The utility model relates to a micro-shaft technical field, concretely relates to wear-resisting micro-shaft of self-lubricating.
Background
The miniature shaft is a relatively small shaft part with high precision, and can be called a precision shaft, a small shaft, a shaft core, a rotor shaft, a pin, a rivet, a guide rod and the like. The micro-shaft is mainly made of carbon steel, stainless steel, copper, aluminum and the like of various materials, and the surface treatment mainly comprises galvanization, nickel plating, blackening, carburization and the like. According to the bearing condition of the miniature shaft, the miniature shaft comprises a rotating shaft, can bear bending moment and torque during working, is the most common shaft in machinery, such as shafts in various speed reducers and the like, and is mainly made of carbon steel or alloy steel or nodular cast iron or alloy cast iron and the like. The operational capacity of the shaft is generally dependent on strength and stiffness, and at high rotational speeds also on vibrational stability.
The miniature axle needs lubricate in the use, and lubricated can use emollient usually, and for convenient use, the miniature axle of self-lubricating should be transported to the birth, but traditional self-lubricating miniature axle lubrication effect after using for a long time descends, increases the wearing and tearing of miniature axle easily, shortens the life of miniature axle.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims to provide a self-lubricating wear-resisting miniature axle that structural design is reasonable, simple structure, lubricated effectual, the wearability is good, long service life and practicality are good.
In order to achieve the above purpose, the utility model provides a following technical scheme: a self-lubricating wear-resistant miniature shaft comprises a miniature shaft body in a cylindrical structure, wherein a hard alloy reinforcing layer is fixedly arranged on the outer surface of the miniature shaft body, and a chromium coating is fixedly arranged on the outer surface of the hard alloy reinforcing layer; a connecting screw hole is axially formed in the middle of the right end face of the miniature shaft body, an oil storage hole is axially formed in the connecting screw hole, and the oil storage hole is a blind hole; the chromium coating is radially provided with a plurality of oil outlet through holes, the hard alloy reinforcing layer is radially provided with an oil delivery cotton through hole at the position aligned with each oil outlet through hole, the miniature shaft body is radially provided with an oil delivery channel at the position aligned with each oil delivery cotton through hole, the upper port of the oil delivery channel is communicated with the aligned oil delivery cotton through hole, and the lower port of the oil delivery channel is communicated with the oil storage hole; the oil transportation cotton is embedded in the oil transportation cotton through hole; and a plurality of oil storage grooves are formed in the outer surface of the chromium coating.
By adopting the technical scheme, after the existing lubricating oil is added into the oil storage hole, in the rotation process of the micro-shaft, the lubricating oil slowly flows out of the oil conveying cotton in the oil conveying cotton through hole after passing through the oil conveying channel, and finally flows out of the oil outlet through hole to the outer surface of the chromium coating, so that the purpose of improving the self-lubricating effect is achieved, the self-lubricating effect can be kept for a long time in the use process, the supply of the lubricating oil is ensured, the service life of the self-lubricating micro-shaft is further prolonged, and the maintenance is convenient as long as the lubricating oil in the oil storage hole is periodically replenished; the hard alloy reinforcing layer plays a role in reinforcing, so that the whole miniature shaft is not easy to deform, firm and durable; the chromium coating improves the hardness and the wear resistance of the surface of the micro shaft; in addition, the oil storage groove is formed in the outer surface of the chromium coating, so that a small amount of lubricating oil can be stored in the oil storage groove, the surface of the miniature shaft can be kept in a lubricating state for a long time, and the lubricating effect is further improved; the structure design is reasonable, the structure is simple, the lubricating effect is good, the wear resistance is good, the service life is long, and the practicability is good.
The utility model discloses further set up to: the connecting screw hole is internally threaded with an oil plugging block, and the oil plugging block is made of stainless steel materials.
The utility model discloses still further set up to: an annular groove is formed in the left end face of the oil plugging block, an O-shaped sealing ring is sleeved in the annular groove, and the oil plugging block is sealed with the inner wall face of the connecting screw hole through the O-shaped sealing ring.
The utility model discloses still further set up to: the hard alloy reinforced layer is welded and fixed with the outer surface of the miniature shaft body, and the thickness of the hard alloy reinforced layer is 1-3 mm.
The utility model discloses still further set up to: the chromium plating layer is electroplated on the outer surface of the hard alloy reinforced layer by an electroplating process, and the thickness of the chromium plating layer is 0.02-0.15 mm.
The utility model discloses still further set up to: the oil storage grooves on the outer surface of the chromium coating are arc-shaped grooves or rectangular grooves, and the number of the oil storage grooves is more than 6.
The utility model has the advantages that: compared with the prior art, the utility model discloses the structure sets up more rationally, after the downthehole current lubricating oil that adds of oil storage, in the rotation process of miniature axle, lubricating oil flows slowly from the oil transportation cotton in the oil transportation cotton through-hole after through the oil transportation passageway, at last from the through-hole outflow of producing oil to chromium-plated layer surface, the purpose that improves the self-lubricating effect has been reached, can be in the use permanent self-lubricating effect that keeps, guarantee the supply of lubricating oil, and then the life of self-lubricating miniature axle has been prolonged, as long as regularly replenishing lubricating oil in the oil storage hole can, it is convenient to maintain; the hard alloy reinforcing layer plays a role in reinforcing, so that the whole miniature shaft is not easy to deform, firm and durable; the chromium coating improves the hardness and the wear resistance of the surface of the micro shaft; in addition, the oil storage groove is formed in the outer surface of the chromium coating, so that a small amount of lubricating oil can be stored in the oil storage groove, the surface of the miniature shaft can be kept in a lubricating state for a long time, and the lubricating effect is further improved; the structure design is reasonable, the structure is simple, the lubricating effect is good, the wear resistance is good, the service life is long, and the practicability is good.
The invention is further described with reference to the drawings and the specific embodiments.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is an enlarged view of section I of FIG. 1;
fig. 3 is an enlarged view of section II in fig. 1.
Detailed Description
In the description of the present embodiment, it should be noted that, as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "front", "rear", etc. appear, the indicated orientation or positional relationship thereof is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" as appearing herein are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Referring to fig. 1, 2 and 3, the self-lubricating wear-resistant miniature shaft disclosed by the present invention comprises a miniature shaft body 1 with a cylindrical structure, wherein a hard alloy reinforced layer 2 is fixedly arranged on the outer surface of the miniature shaft body 1, and a chromium coating 3 is fixedly arranged on the outer surface of the hard alloy reinforced layer 2; a connecting screw hole 11 is axially arranged in the middle of the right end face of the miniature shaft body 1, an oil storage hole 12 is axially arranged in the connecting screw hole 11, and the oil storage hole 12 is a blind hole; a plurality of oil outlet through holes 31 are radially arranged on the chromium coating 3, an oil transportation cotton through hole 21 is radially arranged at the position, which is aligned with each oil outlet through hole, of the hard alloy reinforcing layer 2, an oil transportation channel 13 is radially arranged at the position, which is aligned with each oil transportation cotton through hole, of the micro shaft body 1, the upper port of the oil transportation channel 13 is communicated with the aligned oil transportation cotton through hole 21, and the lower port of the oil transportation channel 13 is communicated with the oil storage hole 12; the oil transportation cotton 4 is embedded in the oil transportation cotton through hole 21; a plurality of oil storage grooves 32 are formed in the outer surface of the chromium plating layer 3.
Preferably, the oil outlet through hole 31 and the oil transportation cotton through hole 21 are funnel-shaped structures; the oil transportation cotton 4 is made of polyurethane sponge, and the side surface of the oil transportation cotton 4 is fixedly bonded with the inner wall surface of the aligned oil transportation cotton through hole 21 through the existing glass cement or nail-free cement.
For making the utility model discloses the structure sets up more rationally, as preferred, this embodiment connect 11 female connection of screw and have a stifled oil piece 5, stifled oil piece 5 is made by stainless steel material.
Preferably, the connecting screw hole 11 and the oil storage hole 12 are circular holes, the diameter of the connecting screw hole 11 is larger than that of the oil storage hole 12, the oil blocking block 5 is of a cylindrical structure, and an external thread matched with an internal thread in the connecting screw hole 11 is arranged on the outer surface of the oil blocking block 5.
An annular groove 51 is formed in the left end face of the oil blocking block 5, an O-shaped sealing ring 6 is sleeved in the annular groove 51, and the oil blocking block 5 is sealed with the inner wall face of the connecting screw hole 11 through the O-shaped sealing ring 6.
The hard alloy reinforced layer 2 is welded and fixed with the outer surface of the miniature shaft body 1, and the thickness of the hard alloy reinforced layer 2 is 1-3 mm.
The chromium coating 3 is electroplated on the outer surface of the hard alloy reinforced layer 2 by an electroplating process, and the thickness of the chromium coating 3 is 0.02-0.15 mm.
The oil storage grooves 32 on the outer surface of the chromium coating 3 are arc-shaped grooves or rectangular grooves, and the number of the oil storage grooves 32 is more than 6.
In practical application, after the existing lubricating oil is added into the oil storage hole, in the rotation process of the micro shaft, the lubricating oil slowly flows out of the oil conveying cotton in the oil conveying cotton through hole after passing through the oil conveying channel, and finally flows out of the oil outlet through hole to the outer surface of the chromium coating, so that the purpose of improving the self-lubricating effect is achieved, the self-lubricating effect can be kept for a long time in the use process, the supply of the lubricating oil is ensured, the service life of the self-lubricating micro shaft is further prolonged, and the maintenance is convenient as long as the lubricating oil in the oil storage hole is periodically replenished; the hard alloy reinforcing layer plays a role in reinforcing, so that the whole miniature shaft is not easy to deform, firm and durable; the chromium coating improves the hardness and the wear resistance of the surface of the micro shaft; in addition, the oil storage groove is formed in the outer surface of the chromium coating, so that a small amount of lubricating oil can be stored in the oil storage groove, the surface of the miniature shaft can be kept in a lubricating state for a long time, and the lubricating effect is further improved; the structure design is reasonable, the structure is simple, the lubricating effect is good, the wear resistance is good, the service life is long, and the practicability is good.
The above embodiments are only used for further explanation of the present invention, and it is not understood that the present invention is limited by the protection scope of the present invention, and the technical engineers in the field are right according to the above contents of the present invention.
Claims (6)
1. The utility model provides a wear-resisting miniature axle of self-lubricating, is including miniature axle body (1) that is cylindrical structure, its characterized in that: a hard alloy reinforced layer (2) is fixedly arranged on the outer surface of the miniature shaft body (1), and a chromium coating (3) is fixedly arranged on the outer surface of the hard alloy reinforced layer (2); a connecting screw hole (11) is axially formed in the middle of the right end face of the miniature shaft body (1), an oil storage hole (12) is axially formed in the connecting screw hole (11), and the oil storage hole (12) is a blind hole; a plurality of oil outlet through holes (31) are radially arranged on the chromium coating (3), an oil transportation cotton through hole (21) is radially arranged at the position, aligned with each oil outlet through hole, of the hard alloy reinforcing layer (2), an oil transportation channel (13) is radially arranged at the position, aligned with each oil transportation cotton through hole (21), of the miniature shaft body (1), the upper port of the oil transportation channel (13) is communicated with the aligned oil transportation cotton through hole (21), and the lower port of the oil transportation channel (13) is communicated with the oil storage hole (12); the oil transportation cotton (4) is embedded in the oil transportation cotton through hole (21); the outer surface of the chromium coating (3) is provided with a plurality of oil storage grooves (32).
2. The self-lubricating wear resistant miniature shaft according to claim 1 wherein: the connecting screw hole (11) is internally threaded with an oil plugging block (5), and the oil plugging block (5) is made of stainless steel materials.
3. The self-lubricating wear resistant miniature shaft according to claim 2 wherein: an annular groove (51) is formed in the left end face of the oil blocking block (5), an O-shaped sealing ring (6) is sleeved in the annular groove (51), and the oil blocking block (5) is sealed between the O-shaped sealing ring (6) and the inner wall face of the connecting screw hole (11).
4. The self-lubricating wear resistant miniature shaft according to claim 1 wherein: the hard alloy reinforced layer (2) is welded and fixed with the outer surface of the miniature shaft body (1), and the thickness of the hard alloy reinforced layer (2) is 1-3 mm.
5. The self-lubricating wear resistant miniature shaft according to claim 1 wherein: the chromium coating (3) is electroplated on the outer surface of the hard alloy reinforced layer (2) by an electroplating process, and the thickness of the chromium coating (3) is 0.02-0.15 mm.
6. The self-lubricating wear resistant miniature shaft according to claim 1 wherein: the oil storage grooves (32) on the outer surface of the chromium coating (3) are arc-shaped grooves or rectangular grooves, and the number of the oil storage grooves (32) is more than 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021974342.0U CN213235775U (en) | 2020-09-10 | 2020-09-10 | Self-lubricating wear-resistant miniature shaft |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021974342.0U CN213235775U (en) | 2020-09-10 | 2020-09-10 | Self-lubricating wear-resistant miniature shaft |
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| CN213235775U true CN213235775U (en) | 2021-05-18 |
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| CN202021974342.0U Active CN213235775U (en) | 2020-09-10 | 2020-09-10 | Self-lubricating wear-resistant miniature shaft |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113774445A (en) * | 2021-09-30 | 2021-12-10 | 安徽银雷直线导轨制造有限公司 | Chromium plating optical axis for numerical control mechanical equipment and machining process |
| CN114427561A (en) * | 2021-12-03 | 2022-05-03 | 江阴市凯华机械制造有限公司 | Wind motor spline gear shaft and machining process |
-
2020
- 2020-09-10 CN CN202021974342.0U patent/CN213235775U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113774445A (en) * | 2021-09-30 | 2021-12-10 | 安徽银雷直线导轨制造有限公司 | Chromium plating optical axis for numerical control mechanical equipment and machining process |
| CN114427561A (en) * | 2021-12-03 | 2022-05-03 | 江阴市凯华机械制造有限公司 | Wind motor spline gear shaft and machining process |
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