CN110894601A - Device for preventing raceway phosphorization of conical bearing outer ring - Google Patents
Device for preventing raceway phosphorization of conical bearing outer ring Download PDFInfo
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- CN110894601A CN110894601A CN201911354892.4A CN201911354892A CN110894601A CN 110894601 A CN110894601 A CN 110894601A CN 201911354892 A CN201911354892 A CN 201911354892A CN 110894601 A CN110894601 A CN 110894601A
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- gland
- outer ring
- raceway
- conical bearing
- sealing ring
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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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- 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 being phosphorized 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 edge of the inner side surface raceway at one end of the conical bearing outer ring, the outer edge of the lower gland is matched with the edge of the inner side surface raceway at the other end of the conical bearing outer ring, the connecting screw penetrates through the upper gland and then is in threaded connection with the lower gland, the lower gland is provided with an exhaust hole, the exhaust hole is connected with the exhaust bag, a sealing space is enclosed by the upper gland, the lower gland and the inner wall of the conical bearing outer ring, and the exhaust bag is positioned in the sealing space and can phosphorize other parts of the outer ring and prevent the raceway part from phosphorizing when the bearing outer ring is phosphorized.
Description
Technical Field
The invention belongs to the technical field of bearing manufacturing, and particularly relates to a device for preventing a raceway from being phosphorized on an outer ring of a conical bearing.
Background
The bearing outer ring is required to be phosphorized due to the characteristics of the use working condition, and the prior phosphorization has two modes, one mode is to carry out complete phosphorization on the surface of the outer ring, and the mode is adopted by the conventional multi-bearing regardless of the phosphorization of the outer diameter or the raceway. With the improvement of quality requirements, a plurality of high-quality bearings require that the raceway cannot be phosphated, so that a plurality of bearing manufacturing enterprises adopt another mode, all surfaces of the outer ring are firstly completely phosphated, then the outer ring is ground off by using a grinding machine to remove the phosphated layer of the raceway, and a plurality of world famous bearing manufacturing plants adopt the mode. The defects of the mode are that the outer ring of the bearing needs to be ground in a reverse process, the labor intensity and the cost are increased, and the features of the logarithmic curve and the like of the raceway are easily damaged.
In addition, there is a mode among the prior art, sheathes the rubber sleeve in bearing inner race whole inner diameter face, compresses tightly with the compressing tightly seat that the outer lane internal diameter shape is the same, reaches the effect of avoiding the phosphorization of inner diameter face. The drawback of this kind of mode is that during the heating of lasso bonderizing, internal pressure and the high temperature during bonderizing lead to the rubber sleeve to produce the displacement and influence the bonderizing effect on the one hand, and on the other hand this kind of device efficiency is lower, is not fit for large-scale production.
Disclosure of Invention
In view of the defects in the prior art, the invention provides a device for preventing a raceway from being phosphorized for an outer ring of a conical bearing, which can phosphorize other parts of the outer ring and prevent the raceway part from being phosphorized when the outer ring of the bearing is phosphorized.
In order to achieve the purpose, the technical scheme adopted by the invention is a device for preventing the raceway from being phosphorized by the outer ring of the conical bearing, which 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 edge of the inner side surface raceway at one end of the conical bearing outer ring, the outer edge of the lower gland is matched with the edge of the inner side surface raceway at the other end of the conical bearing outer ring, the connecting screw penetrates through the upper gland and then is in threaded connection with the lower gland, the connecting screw is in threaded connection with the lower gland, the lower gland is provided with an exhaust hole, the exhaust hole is connected with the exhaust bag, a sealing space is defined by the upper gland, the lower gland and the inner wall of the conical bearing outer ring, and the exhaust bag is located inside the sealing space.
Based on the technical scheme, the device adopts the upper pressing cover and the lower pressing cover to be matched with the exhaust bag, and adopts a pressure balance technology, so that the risk of pressure generation caused by air expansion of the inner cavity is avoided, the risk of phosphating of the raceway by the phosphating solution permeating into the inner part is also avoided, and the purpose of preventing the raceway from being phosphatized is achieved.
Preferably, the exhaust hole points to the upper gland and is connected with an exhaust pipe, and the exhaust pipe is connected with an acid-resistant exhaust bag.
Furthermore, 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 outer ring of the conical bearing, and the lower sealing ring is arranged between the lower gland and the inner side surface of the other end of the outer ring of the conical bearing.
Based on the technical scheme, the outer diameters of the upper gland and the lower gland are sleeved with acid-resistant and heat-resistant sealing rings or are integrally coated with a layer of acid-resistant and heat-resistant rubber to serve as the sealing rings, and the upper gland and the lower gland are respectively pressed on the edge of the roller path of the outer ring, so that the inner cavity of the outer ring forms a sealed environment, and the phosphating solution is prevented from permeating into the phosphating roller path of the inner cavity. Meanwhile, the added exhaust bag isolates the communication between the inside and the outside, and the inside and the outside air pressure are kept balanced, so that the risk of negative pressure seepage or high pressure explosion caused by the difference of the inside pressure and the outside pressure formed by the temperature change is avoided.
Preferably, the upper sealing ring is a 10mm acid-resistant and high-temperature-resistant rubber sealing ring, and the lower sealing ring is a 10mm acid-resistant and high-temperature-resistant rubber sealing ring.
Furthermore, the device also comprises an O-shaped sealing ring, the O-shaped sealing ring is sleeved on the outer side of the connecting screw, and the connecting position of the upper gland and the connecting screw is sealed by the O-shaped sealing ring.
Based on the technical scheme, the O-shaped sealing ring is arranged at the connecting position of the upper gland and the connecting screw for sealing, so that the air tightness of a sealing space enclosed by the upper gland, the lower gland and the inner wall of the outer ring of the conical bearing is further ensured.
Preferably, the upper gland is a circular cover plate, the outer edge of the upper gland is a V-shaped edge arranged outwards, the middle part of the V-shaped edge is located at the edge of a raceway at the position of an upper ferrule oil groove on the inner wall of the outer ring of the conical bearing, an upper sealing ring is sleeved on 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 raceway of the outer ring and smaller than the inner diameter of a tooth mouth, and the thin end of the upper gland is smaller than the.
It should be noted that the purpose that the thick end of the upper gland is smaller than the inner diameter of the tooth mouth (namely the position of the oil groove of the upper ferrule) is two, one is to conveniently load the upper gland, and the other is not to shield the position of the oil groove of the upper ferrule, so that the position of the oil groove of the upper ferrule can be phosphated.
Preferably, the lower gland is a circular cover plate, the outer edge of the lower gland is a V-shaped edge arranged outwards, the middle part of the V-shaped edge is located at the edge of a raceway at the position of a lower ferrule oil groove on the inner wall of the outer ring of the conical bearing, 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 raceway of the outer ring and smaller than the inner diameter of a tooth mouth, and the thin end of the lower gland is smaller than the outer.
It should be noted that, the purpose of the thick end of the lower pressing cover being smaller than the inner diameter of the tooth mouth (i.e. the position of the oil groove of the lower ferrule) is two, one is to conveniently install the lower pressing cover, and the other is not to shield the position of the oil groove of the lower ferrule, so that the position of the oil groove of the lower ferrule can also be phosphorized.
Based on above-mentioned technical scheme, utilize lasso oil drain position cooperation gland special edge structure for the outer lane can just in time sit the acidproof rubber circle department of gland down, go up the gland and can just in time sit on the outer lane simultaneously, has further guaranteed that upper gland, gland and conical bearing outer lane inner wall enclose into the gas tightness of seal space down.
Furthermore, the central position of the lower gland is provided with a connecting part, the connecting part is a columnar structure pointing to the upper gland, and the connecting screw is in threaded connection with the columnar structure.
Based on above-mentioned technical scheme for the connection of connecting screw and lower gland is more reliable.
Furthermore, the upper end part of the connecting screw, which extends out of the upper gland, is provided with a lifting hook.
The use method of the invention comprises the following steps: before phosphorization, the sleeve ring is seated on the lower pressing cover, the upper pressing cover penetrates through the central upright post and then covers the raceway at the upper end of the outer ring, then the sealing screw is tightly screwed, 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 enable the inner cavity of the raceway of the bearing to be isolated from the outside, then the phosphorization is carried out, other parts of the outer ring can be phosphorized during phosphorization, and the raceway part is prevented from being phosphorized.
The invention has the beneficial effects that: the device can phosphorize other parts of the outer ring and not phosphorize the raceway part when the bearing outer ring is phosphorized.
Drawings
FIG. 1 is a schematic view of a mating conical bearing outer race of the present invention;
FIG. 2 is a schematic structural view of the present invention;
FIG. 3 is an enlarged view of a portion I of FIG. 2;
FIG. 4 is an enlarged view of a portion II of FIG. 1;
in the figure: 1. the sealing structure comprises an upper gland, 1.1, an upper gland V-shaped edge, 2, a lower gland, 2.1, a lower gland V-shaped edge, 2.2, a connecting part, 3, a connecting screw, 4, an exhaust bag, 5, a conical bearing outer ring, 6, an exhaust hole, 7, a sealing space, 8, an exhaust pipe, 9, an upper sealing ring, 10, a lower sealing ring, 11, an O-shaped sealing ring, 12, an upper ferrule oil groove, 13, a lower ferrule oil groove, 14 and an outer ring raceway.
Detailed Description
The device for preventing the raceway from being phosphorized 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 surface 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 surface raceway edge of the other end of the conical bearing outer ring 5, the connecting screw 3 penetrates through the upper gland 1 and then is in threaded connection with the lower gland 2, the lower gland 2 is provided with an exhaust hole 6, the exhaust hole 6 is connected with the exhaust bag 4, a sealed space is defined by the upper gland 1, the lower gland 2 and the inner wall of the conical bearing outer ring 5, and the exhaust bag 4 is located inside the sealed space 7.
Preferably, the exhaust hole 6 is directed to an upper gland welding exhaust pipe 8, and an acid-resistant exhaust 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 a 10mm acid-resistant and high-temperature-resistant rubber sealing ring, and the lower sealing ring is a 10mm acid-resistant and high-temperature-resistant rubber sealing ring.
Further, the device still includes O type sealing washer 11, O type sealing washer 11 cover is in the connecting screw outside, and O type sealing washer 11 seals the gland 1 and connecting screw 3 hookup location.
As shown in fig. 3 and 4, preferably, the upper gland 1 is a circular cover plate, the outer edge of the circular cover plate is an outward V-shaped edge 1.1 of the upper gland, the middle part of the V-shaped edge 1.1 of the upper gland is located at the raceway edge of the upper ferrule oil groove 12 on the inner wall of the conical bearing outer ring 5, the lower part of the V-shaped edge 1.1 of the upper gland is sleeved with an upper seal ring 9, the thick end of the upper gland 1 sleeved with the upper seal 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 the structure of the lower gland 2 is symmetrical to that of the upper gland 1, and therefore, as shown in fig. 3 and 4, preferably, the lower gland 2 is a circular cover plate, the outer edge of the circular cover plate is an outwardly disposed V-shaped edge 2.1 of the lower gland, the middle of the V-shaped edge 2.1 of the lower gland is located at the edge of the raceway at the position of the lower ferrule oil groove 13 on the inner wall of the conical bearing outer ring 5, the upper portion of the V-shaped edge 2.1 of the lower gland is sleeved with a lower seal ring 10, the thick end of the lower gland 2 sleeved with the lower seal ring 10 is larger than the outer diameter of the outer ring raceway, and the thin end is smaller than the outer diameter.
Further, the central position of the lower gland 2 is provided with a connecting part 2.2, the connecting part 2.2 is 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 the shape of a lifting hook, so that the phosphorization is convenient to lift.
The working process of the embodiment: before phosphating, the sleeve ring is seated on the lower gland 2, at the moment, the thick end of the lower acid-proof rubber sealing ring 10 of the lower gland 2 is larger than the outer diameter of the outer ring roller path, and the thin end is smaller than the outer diameter of the outer ring roller path, so that the outer ring can be just seated on the acid-proof rubber ring of the lower gland 2. And the upper gland 1 passes through the central upright post and then covers the roller path at the upper end of the outer ring, the thick end of the upper acid-proof rubber upper sealing ring 9 of the upper gland 1 is larger than the outer diameter of the roller path of the outer ring, the thin end of the upper acid-proof rubber upper sealing ring is smaller than the outer diameter of the roller path of the outer ring, then a sealing screw is screwed tightly, the upper gland and the lower gland are tightly pressed at the roller path of the outer ring of the bearing at the moment to enable the inner cavity of the roller path of the bearing to be isolated from the outside, then the phosphating is carried out. When phosphorization heating, the air in the ferrule expands, the expanded air can extrude the exhaust bag 4, and the air in the exhaust bag 4 is extruded and exhausted out of the ferrule through the exhaust hole. The function of the air exhaust bag 4 is to play a role in reducing pressure and isolating the phosphorization liquid from entering the inner cavity of the bearing.
The beneficial effects of this embodiment: the device can lead other parts of the outer ring to be phosphorized and the raceway part not to be phosphorized when the bearing outer ring is phosphorized; the device adopts a rubber sealing, unique and simple pressure balancing technology, thereby not only avoiding the risk of pressure generation caused by air expansion of the inner cavity, but also avoiding the risk of phosphating the raceway by the phosphating solution permeating into the inner part, and achieving the purpose of preventing the raceway from being phosphatized. By adopting the device, the phosphating device can be placed on a special phosphating frame for phosphating, and the outer ring can be hung on the hanger for phosphating if the connecting screw is changed into the hook shape.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (9)
1. The device for preventing the raceway from being phosphorized on the outer ring of the conical bearing 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 edge of the inner side surface raceway at one end of the conical bearing outer ring, the outer edge of the lower gland is matched with the edge of the inner side surface raceway at the other end of the conical bearing outer ring, the connecting screw penetrates through the upper gland and then is in threaded connection with the lower gland, the connecting screw is in threaded connection with the lower gland, the lower gland is provided with an exhaust hole, the exhaust hole is connected with the exhaust bag, a sealing space is defined by the upper gland, the lower gland and the inner wall of the conical bearing outer ring, and the exhaust bag is located inside the sealing space.
2. The device for avoiding raceway phosphorization of a conical bearing outer ring according to claim 1, characterized in that: the exhaust hole is connected with an exhaust pipe through an upper gland, and an acid-resistant exhaust bag is connected to the exhaust pipe.
3. The device for avoiding raceway phosphorization of a conical bearing outer ring according to claim 1, characterized in that: 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.
4. A device for avoiding raceway phosphating according to claim 3, characterised in that: the upper sealing ring is an acid-resistant and high-temperature-resistant rubber sealing ring, and the lower sealing ring is an acid-resistant and high-temperature-resistant rubber sealing ring.
5. The device for avoiding raceway phosphorization of a conical bearing outer ring according to any one of claims 1-4, characterized in that: the device further comprises an O-shaped sealing ring, the O-shaped sealing ring is sleeved on the outer side of the connecting screw, and the connecting position of the upper gland and the connecting screw is sealed by the O-shaped sealing ring.
6. The device for avoiding raceway phosphorization of a conical bearing outer ring according to any one of claims 1-4, characterized in that: the upper gland is a circular cover plate, the outer edge of the upper gland is a V-shaped edge arranged outwards, the middle part of the V-shaped edge is positioned at the edge of a raceway at the position of an oil groove of an upper ferrule on the inner wall of an outer ring of the conical bearing, an upper sealing ring is sleeved on 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 raceway of the outer ring and smaller than the inner diameter of a tooth mouth, and the thin end of the upper gland.
7. The device for avoiding raceway phosphorization of a conical bearing outer ring according to any one of claims 1-4, characterized in that: the lower gland is a circular cover plate, the outer edge of the lower gland is a V-shaped edge arranged outwards, the middle part of the V-shaped edge is positioned at the edge of a raceway at the position of an oil groove of a lower ferrule on the inner wall of the outer ring of the conical bearing, 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 raceway of the outer ring and smaller than the inner diameter of a tooth mouth, and the thin end of the lower gland is.
8. The device for avoiding raceway phosphorization of a conical bearing outer ring according to any one of claims 1-4, characterized in that: the central position of the lower gland is provided with a connecting part which is a columnar structure pointing to the upper gland, and the connecting screw is in threaded connection with the columnar structure.
9. The device for avoiding raceway phosphorization of a conical bearing outer ring according to any one of claims 1-4, characterized in that: the nut part of the connecting screw is set to be 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 |
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| CN110894601A true CN110894601A (en) | 2020-03-20 |
| CN110894601B 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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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111926320A (en) * | 2020-07-01 | 2020-11-13 | 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 |
| CN111945143A (en) * | 2020-07-06 | 2020-11-17 | 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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| 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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| JP2001323293A (en) * | 2000-03-08 | 2001-11-22 | Pooraito Kk | Oil-impregnated bearing and lubricating oil used for the bearing |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111926320A (en) * | 2020-07-01 | 2020-11-13 | 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 |
| 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 |
| CN111945143A (en) * | 2020-07-06 | 2020-11-17 | 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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| CN110894601B (en) | 2023-08-15 |
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