CN110894601B - Device for preventing roller path from phosphating on conical bearing outer ring - Google Patents
Device for preventing roller path from phosphating on conical bearing outer ring Download PDFInfo
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- CN110894601B CN110894601B CN201911354892.4A CN201911354892A CN110894601B CN 110894601 B CN110894601 B CN 110894601B CN 201911354892 A CN201911354892 A CN 201911354892A CN 110894601 B CN110894601 B CN 110894601B
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- gland
- outer ring
- conical bearing
- sealing ring
- raceway
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/86—Optimisation of rolling resistance, e.g. weight reduction
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- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The invention belongs to the technical field of bearing manufacturing, and particularly relates to a device for preventing a raceway from phosphating on an outer ring of a conical bearing. Comprises an upper gland, a lower gland, a connecting screw and an exhaust bag; the outer edge of the upper gland is matched with the inner side surface raceway edge of one end of the conical bearing outer ring, the outer edge of the lower gland is matched with the inner side surface raceway edge of the other end of the conical bearing outer ring, the connecting screw penetrates through the upper gland and then is connected to the lower gland in a threaded mode, the connecting screw is connected with the lower gland in a threaded mode, the lower gland is provided with an exhaust hole, the exhaust hole is connected with the exhaust bag, the sealing space is defined by the upper gland, the lower gland and the inner wall of the conical bearing outer ring, the exhaust bag is located inside the sealing space, and when the bearing outer ring is phosphated, other parts of the outer ring can be phosphated, and the raceway parts are not phosphated.
Description
Technical Field
The invention belongs to the technical field of bearing manufacturing, and particularly relates to a device for preventing a raceway from phosphating on an outer ring of a conical bearing.
Background
Because of the characteristics of the working conditions, the outer ring of the bearing is required to be phosphated, two modes exist in the prior phosphating process, one is to carry out all phosphating on the surface of the outer ring, and the outer diameter and the roller path are all phosphated, so that a plurality of bearings at present adopt the mode. With the increase of quality requirements, many high-quality bearings require that the raceway cannot be phosphated, so that many bearing manufacturers adopt another mode, namely, firstly, all surfaces of the outer ring are phosphated, then, the outer ring is ground by a grinding machine to grind out the phosphated layer of the raceway, and many world famous bearing manufacturers adopt the mode. The method has the defects that the outer ring of the bearing needs to be ground in a reverse working procedure, the labor intensity and the cost are increased, and the shapes of logarithmic curves and the like of the rollaway nest are easily damaged.
In addition, in the prior art, a rubber sleeve is sleeved on the whole inner diameter surface of the bearing outer ring, and the bearing outer ring is compressed by a compressing seat with the same shape as the inner diameter of the outer ring, so that the effect of avoiding phosphating of the inner diameter surface is achieved. The disadvantage of this way is that when the ferrule is phosphated and heated, the rubber sleeve is displaced due to the internal pressure and the high temperature during the phosphating to affect the phosphating effect, and on the other hand, the device has lower efficiency and is not suitable for large-scale production.
Disclosure of Invention
In view of the defects existing in the background art, the invention provides a device for preventing a raceway from phosphating on an outer ring of a conical bearing, which can enable other parts of the outer ring to be phosphated and the raceway part to be non-phosphated during phosphating of the outer ring of the bearing.
In order to achieve the aim, the technical scheme adopted by the invention is that the device for avoiding the phosphating of the raceway of the conical bearing outer ring comprises an upper gland, a lower gland, a connecting screw and an exhaust bag; the outer edge of the upper gland is matched with the inner side surface raceway edge of one end of the conical bearing outer ring, the outer edge of the lower gland is matched with the inner side surface raceway edge of the other end of the conical bearing outer ring, the connecting screw penetrates through the upper gland and then is connected to the lower gland in a threaded mode, the connecting screw is connected with the lower gland in a threaded mode, an exhaust hole is formed in the lower gland and is connected with the exhaust bag, and a sealing space is formed by the upper gland, the lower gland and the inner wall of the conical bearing outer ring in a surrounding mode, and the exhaust bag is located inside the sealing space.
Based on the technical scheme, the device adopts the upper gland and the lower gland to match the exhaust bag, and adopts the pressure balancing technology, so that the risk of generating pressure by inner cavity air expansion is avoided, the risk of phosphating the raceway caused by the infiltration of phosphating solution is avoided, and the aim of phosphating-free raceway is achieved.
Preferably, the exhaust hole is directed to the upper gland to be connected with the exhaust pipe, and the exhaust pipe is connected with an acid-resistant exhaust air bag.
Further, the device also comprises an upper sealing ring and a lower sealing ring, wherein the upper sealing ring is arranged between the upper gland and the inner side surface of one end of the conical bearing outer ring, and the lower sealing ring is arranged between the lower gland and the inner side surface of the other end of the conical bearing outer ring.
Based on the technical scheme, the outer diameters of the upper gland and the lower gland are sleeved with the acid-resistant and heat-resistant sealing ring or integrally coated with a layer of acid-resistant and heat-resistant rubber to serve as the sealing ring, the upper gland and the lower gland are respectively pressed on the edges of the rollaway nest of the outer ring, so that the inner cavity of the outer ring forms a sealing environment, and phosphating solution is prevented from infiltrating into the phosphating rollaway nest of the inner cavity. Meanwhile, the added exhaust bag isolates the communication between the inside and the outside, and also keeps the air pressure between the inside and the outside balanced, so that the risk of negative pressure seepage or high pressure explosion caused by the pressure difference between the inside and the outside due to temperature change is avoided.
Preferably, the upper sealing ring is an acid-resistant high-temperature-resistant rubber sealing ring with the diameter of 10mm, and the lower sealing ring is an acid-resistant high-temperature-resistant rubber sealing ring with the diameter of 10 mm.
Furthermore, the device also comprises an O-shaped sealing ring, wherein the O-shaped sealing ring is sleeved outside the connecting screw, and the O-shaped sealing ring seals the connecting position of the upper gland and the connecting screw.
Based on the technical scheme, the O-shaped sealing ring is arranged at the connection position of the upper gland and the connecting screw for sealing, so that the air tightness of a sealing space surrounded by the upper gland, the lower gland and the inner wall of the conical bearing outer ring is further ensured.
Preferably, the upper gland is a round cover plate, the outer edge of the upper gland is a V-shaped edge which is arranged outwards, the middle part of the V-shaped edge is positioned at the raceway edge of the upper ferrule oil groove position of the inner wall of the conical bearing outer ring, an upper sealing ring is sleeved at the lower part of the V-shaped edge, the thick end of the upper gland sleeved with the upper sealing ring is larger than the outer diameter of the outer ring raceway and smaller than the inner diameter of the tooth mouth, and the thin end of the upper gland is smaller than the outer diameter of the outer ring raceway.
The purpose of the thick end of the upper gland being smaller than the inner diameter of the tooth mouth (namely the position of the upper ferrule oil groove) is two, one is to facilitate the installation of the upper gland, and the other is to not shade the position of the upper ferrule oil groove, so that the position of the upper ferrule oil groove can be phosphated.
Preferably, the lower gland is a round cover plate, the outer edge of the lower gland is a V-shaped edge which is arranged outwards, the middle part of the V-shaped edge is positioned at the raceway edge of the lower ferrule oil groove position of the inner wall of the conical bearing outer ring, a lower sealing ring is sleeved on the upper part of the V-shaped edge, the thick end of the lower gland sleeved with the lower sealing ring is larger than the outer diameter of the outer ring raceway and smaller than the inner diameter of a tooth mouth, and the thin end of the lower gland sleeved with the lower sealing ring is smaller than the outer diameter of the outer ring raceway.
The purpose of the thick end of the lower gland being smaller than the inner diameter of the tooth mouth (namely the position of the lower ferrule oil groove) is two, one is to facilitate the installation of the lower gland, and the other is to not shade the position of the lower ferrule oil groove, so that the position of the lower ferrule oil groove can be phosphated.
Based on the technical scheme, the special edge structure of the gland is matched with the position of the ferrule oil groove, so that the outer ring can be just seated at the acid-resistant rubber ring of the lower gland, and meanwhile, the upper gland can be just seated on the outer ring, and the tightness of a sealing space defined by the upper gland, the lower gland and the inner wall of the conical bearing outer ring is further ensured.
Further, a connecting part is arranged at the center of the lower gland, the connecting part is of a columnar structure pointing to the upper gland, and the connecting screw is in threaded connection with the columnar structure.
Based on the technical scheme, the connection screw and the lower gland are more reliably connected.
Further, the upper end part of the connecting screw, which extends out of the upper gland, is provided with a lifting hook.
The application method of the invention comprises the following steps: the sleeve ring is seated on the lower pressing cover before phosphating, the upper pressing cover passes through the central upright post and then covers the raceway at the upper end of the outer ring, then the sealing screw is screwed tightly, at the moment, the upper pressing cover and the lower pressing cover are tightly pressed at the raceway of the outer ring of the bearing to isolate the inner cavity at the raceway of the bearing from the outside, then phosphating is carried out, other parts of the outer ring can be phosphatized during phosphating, and the raceway part is prevented from phosphating.
The invention has the beneficial effects that: the device can make other parts of the outer ring phosphorus and the raceway parts not phosphorus when the outer ring of the bearing is phosphated.
Drawings
FIG. 1 is a schematic view of the mating conical bearing cup of the present invention;
FIG. 2 is a schematic diagram of the structure of the present invention;
FIG. 3 is an enlarged view of part of I in FIG. 2;
FIG. 4 is an enlarged view of part of II in FIG. 1;
in the figure: 1. the sealing device comprises an upper gland, an upper gland V-shaped edge, a lower gland, a 2.1 lower gland, a 2.2 lower gland V-shaped edge, a connecting part, a 3 connecting screw, a 4 exhaust bag, a 5 conical bearing outer ring, a 6 exhaust hole, a 7 sealing space, an 8 exhaust pipe, a 9 upper sealing ring, a 10 lower sealing ring, an 11O-shaped sealing ring, a 12 upper ferrule oil groove, a 13 lower ferrule oil groove, a 14 outer ring rollaway nest.
Detailed Description
The device for avoiding the phosphating of the raceway on the outer ring of the conical bearing comprises an upper gland 1, a lower gland 2, a connecting screw 3 and an exhaust bag 4; the outer edge of the upper gland 1 is matched with the inner side raceway edge of one end of the conical bearing outer ring 5, the outer edge of the lower gland 2 is matched with the inner side raceway edge of the other end of the conical bearing outer ring 5, the connecting screw 3 passes through the upper gland 1 and then is connected to the lower gland 2 in a threaded manner, the connecting screw 3 is connected with the lower gland 2 in a threaded manner, the lower gland 2 is provided with an exhaust hole 6, the exhaust hole 6 is connected with the exhaust bag 4, the inner walls of the upper gland 1, the lower gland 2 and the conical bearing outer ring 5 enclose a sealing space, and the exhaust bag 4 is positioned in the sealing space 7.
Preferably, the exhaust hole 6 is directed to the upper gland and welded with the exhaust pipe 8, and an acid-resistant exhaust gas bag is connected to the exhaust pipe 8.
Further, the device also comprises an upper sealing ring 9 and a lower sealing ring 10, wherein the upper sealing ring 9 is arranged between the upper gland 1 and the inner side surface of one end of the conical bearing outer ring 5, and the lower sealing ring 10 is arranged between the lower gland 2 and the inner side surface of the other end of the conical bearing outer ring 5.
Preferably, the upper sealing ring 9 is an acid-resistant high-temperature-resistant rubber sealing ring with the diameter of 10mm, and the lower sealing ring is an acid-resistant high-temperature-resistant rubber sealing ring with the diameter of 10 mm.
Further, the device also comprises an O-shaped sealing ring 11, the O-shaped sealing ring 11 is sleeved outside the connecting screw, and the O-shaped sealing ring 11 seals the connecting position of the upper gland 1 and the connecting screw 3.
As shown in fig. 3 and fig. 4, preferably, the upper gland 1 is a circular cover plate, the outer edge of the upper gland is an upper gland V-shaped edge 1.1 which is arranged outwards, the middle part of the upper gland V-shaped edge 1.1 is positioned at the raceway edge of the upper ferrule oil groove 12 on the inner wall of the conical bearing outer ring 5, an upper sealing ring 9 is sleeved at the lower part of the upper gland V-shaped edge 1.1, the thick end of the upper gland 1 sleeved with the upper sealing ring 9 is larger than the outer diameter of the outer ring raceway, and the thin end is smaller than the outer diameter of the outer ring raceway.
It should be noted that, as shown in fig. 3 and 4, the structure of the lower gland 2 is symmetrical to that of the upper gland 1, and therefore, it is preferable that the lower gland 2 is a circular cover plate, the outer edge of the lower gland is a lower gland V-shaped edge 2.1 which is arranged outwards, the middle part of the lower gland V-shaped edge 2.1 is located at the raceway edge of the lower ferrule oil gallery 13 of the inner wall of the conical bearing outer ring 5, a lower sealing ring 10 is sleeved on the upper part of the lower gland V-shaped edge 2.1, the thick end of the lower gland 2 sleeved with the lower sealing ring 10 is larger than the outer diameter of the outer ring raceway, and the thin end is smaller than the outer diameter of the outer ring raceway.
Further, a connecting portion 2.2 is arranged at the center of the lower gland 2, the connecting portion 2.2 is of a columnar structure pointing to the upper gland 1, and the connecting screw 3 is in threaded connection with the columnar structure.
Furthermore, the nut part of the connecting screw is designed into a shape of a lifting hook, so that the phosphating is convenient to lift.
The working procedure of this embodiment is: the sleeve ring is arranged on the lower gland 2 before phosphating, and at the moment, the thick end of the acid-resistant rubber lower sealing ring 10 of the lower gland 2 is larger than the outer diameter of the outer ring raceway, and the thin end of the acid-resistant rubber lower sealing ring is smaller than the outer diameter of the outer ring raceway, so that the outer ring can be just arranged on the acid-resistant rubber ring of the lower gland 2. The next step is to cover the upper gland 1 after passing through the central upright post at the raceway of the upper end of the outer ring, at this moment, the thick end of the sealing ring 9 at the upper acid-resistant rubber part of the upper gland 1 is larger than the outer diameter of the raceway of the outer ring, the thin end is smaller than the outer diameter of the raceway of the outer ring, then the sealing screw is screwed tightly, at this moment, the upper and lower gland is tightly pressed at the raceway of the outer ring of the bearing to isolate the inner cavity at the raceway of the bearing from the outside, then the inner cavity is phosphated, and other parts of the outer ring can be phosphated during the phosphating, and the raceway part is prevented from being phosphated. When the phosphorization is carried out, the air in the ferrule expands, the expanded air can squeeze the exhaust bag 4, and the air in the exhaust bag 4 is squeezed to be discharged out of the ferrule through the exhaust hole. The exhaust bag 4 has the functions of reducing pressure and isolating phosphating solution from flowing into the inner cavity of the bearing.
The beneficial effects of this embodiment are: the device can make other parts of the outer ring phosphorus and the raceway part not phosphorus when the outer ring of the bearing is phosphated; the device adopts a rubber sealing, unique and simple pressure balancing technology, avoids the risk of generating pressure by air expansion of an inner cavity, avoids the risk of phosphating the raceway caused by infiltration of phosphating solution, and achieves the purpose of phosphating-free raceway. The device can be placed on a special phosphorization frame for phosphorization, and the outer ring can be hung on a hanging frame for phosphorization if the connecting screw is changed into a hook shape.
The above embodiments are merely illustrative of the principles of the present invention and its effectiveness, and are not intended to limit the invention. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the invention. Accordingly, it is intended that all equivalent modifications and variations of the invention be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.
Claims (7)
1. Device for avoiding roller path phosphating of conical bearing outer ring, which is characterized in that: comprises an upper gland, a lower gland, a connecting screw and an exhaust bag; the outer edge of the upper gland is matched with the inner side surface raceway edge of one end of the conical bearing outer ring, the outer edge of the lower gland is matched with the inner side surface raceway edge of the other end of the conical bearing outer ring, the connecting screw penetrates through the upper gland and then is connected to the lower gland in a threaded manner, the connecting screw is connected with the lower gland in a threaded manner, the lower gland is provided with an exhaust hole, the exhaust hole is connected with the exhaust bag, and the upper gland, the lower gland and the inner wall of the conical bearing outer ring enclose a sealing space, and the exhaust bag is positioned in the sealing space; the device also comprises an upper sealing ring and a lower sealing ring, wherein the upper sealing ring is arranged between the upper gland and the inner side surface of one end of the conical bearing outer ring, and the lower sealing ring is arranged between the lower gland and the inner side surface of the other end of the conical bearing outer ring; the exhaust hole is directed to the upper gland to be connected with an exhaust pipe, and the exhaust pipe is connected with an acid-resistant exhaust air bag.
2. The device for avoiding phosphating of raceways of the outer ring of the conical bearing according to claim 1, wherein: the upper sealing ring is an acid-resistant high-temperature-resistant rubber sealing ring, and the lower sealing ring is an acid-resistant high-temperature-resistant rubber sealing ring.
3. A device for avoiding phosphating of raceways of a conical bearing outer race according to claim 1 or 2, characterized in that: the device also comprises an O-shaped sealing ring, wherein the O-shaped sealing ring is sleeved outside the connecting screw, and the O-shaped sealing ring seals the connecting position of the upper gland and the connecting screw.
4. A device for avoiding phosphating of raceways of a conical bearing outer race according to claim 1 or 2, characterized in that: the upper gland is a round cover plate, the outer edge of the upper gland is a V-shaped edge which is arranged outwards, the middle part of the V-shaped edge is positioned at the raceway edge of the upper ferrule oil groove of the inner wall of the conical bearing outer ring, an upper sealing ring is sleeved at the lower part of the V-shaped edge, the thick end of the upper gland sleeved with the upper sealing ring is larger than the outer diameter of the outer ring raceway and smaller than the inner diameter of a tooth mouth, and the thin end of the upper gland is smaller than the outer diameter of the outer ring raceway.
5. A device for avoiding phosphating of raceways of a conical bearing outer race according to claim 1 or 2, characterized in that: the lower gland is a round cover plate, the outer edge of the lower gland is a V-shaped edge which is arranged outwards, the middle part of the V-shaped edge is positioned at the raceway edge of the oil groove of the lower ferrule of the inner wall of the conical bearing outer ring, the upper part of the V-shaped edge is sleeved with a lower sealing ring, the thick end of the lower gland sleeved with the lower sealing ring is larger than the outer diameter of the outer ring raceway and smaller than the inner diameter of the tooth mouth, and the thin end of the lower gland is smaller than the outer diameter of the outer ring raceway.
6. A device for avoiding phosphating of raceways of a conical bearing outer race according to claim 1 or 2, characterized in that: the connecting part is arranged at the center of the lower gland and is of a columnar structure pointing to the upper gland, and the connecting screw is in threaded connection with the columnar structure.
7. A device for avoiding phosphating of raceways of a conical bearing outer race according to claim 1 or 2, characterized in that: the nut part of the connecting screw is arranged in the shape of a lifting hook.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911354892.4A CN110894601B (en) | 2019-12-25 | 2019-12-25 | Device for preventing roller path from phosphating on conical bearing outer ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911354892.4A CN110894601B (en) | 2019-12-25 | 2019-12-25 | Device for preventing roller path from phosphating on conical bearing outer ring |
Publications (2)
| Publication Number | Publication Date |
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| CN110894601A CN110894601A (en) | 2020-03-20 |
| CN110894601B true CN110894601B (en) | 2023-08-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911354892.4A Active CN110894601B (en) | 2019-12-25 | 2019-12-25 | Device for preventing roller path from phosphating on conical bearing outer ring |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111926320B (en) * | 2020-07-01 | 2022-11-18 | 瓦房店轴承集团国家轴承工程技术研究中心有限公司 | Method for avoiding raceway phosphorization during bearing inner ring phosphorization |
| CN111945143B (en) * | 2020-07-06 | 2022-10-21 | 瓦房店轴承集团国家轴承工程技术研究中心有限公司 | Method for preventing bearing inner ring raceway from phosphorizing |
| CN114182245A (en) * | 2020-09-15 | 2022-03-15 | 中浙高铁轴承有限公司 | Anti-phosphating method for specified surface of bearing ring |
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| JP2001323293A (en) * | 2000-03-08 | 2001-11-22 | Pooraito Kk | Oil-impregnated bearing and lubricating oil used for the bearing |
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| CN207672124U (en) * | 2017-12-22 | 2018-07-31 | 瓦房店轴承集团国家轴承工程技术研究中心有限公司 | A kind of anti-phosphating plant of conic bearing outer ring raceway |
| CN211079332U (en) * | 2019-12-25 | 2020-07-24 | 瓦房店轴承集团国家轴承工程技术研究中心有限公司 | Device for preventing raceway phosphorization of conical bearing outer ring |
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2019
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2001146918A (en) * | 1999-11-22 | 2001-05-29 | Canon Inc | Fluid bearing device and polygon mirror scanner unit |
| JP2001323293A (en) * | 2000-03-08 | 2001-11-22 | Pooraito Kk | Oil-impregnated bearing and lubricating oil used for the bearing |
| CN101978181A (en) * | 2008-03-21 | 2011-02-16 | Ntn株式会社 | Cage for ball bearing, ball bearing with the cage and method of manufacturing the cage |
| CN107904588A (en) * | 2017-12-22 | 2018-04-13 | 瓦房店轴承集团国家轴承工程技术研究中心有限公司 | The anti-phosphating plant of conic bearing outer ring raceway |
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