CN203395020U - Self-lubricating bearing - Google Patents
Self-lubricating bearing Download PDFInfo
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- CN203395020U CN203395020U CN201320457833.1U CN201320457833U CN203395020U CN 203395020 U CN203395020 U CN 203395020U CN 201320457833 U CN201320457833 U CN 201320457833U CN 203395020 U CN203395020 U CN 203395020U
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Abstract
The utility model relates to the technical field of bearings of engineering machinery, and in particular relates to a self-lubricating bearing, which is used for solving the problems of unreasonable design, poor carrying capacity and the like in the prior art. The self-lubricating bearing comprises a seamless sleeve body manufactured by bearing steels, wherein a copper casting layer having the same thickness with the seamless sleeve body is centrifugally cast on the inner wall of the seamless sleeve body so as to form a composite sleeve body of an integrated structure; a plurality of blind holes are evenly formed in the inner wall of the composite sleeve body; the blind holes pass through the copper casting layer and extend into the seamless sleeve body in a radial direction; solid lubricants are respectively stored in the blind holes; and the inner end surface of each of the solid lubricant is flush with the inner wall of the composite sleeve body. Compared with the prior art, the self-lubricating bearing has the advantages of being simple in process, strong in carrying capacity, good in abrasion resistance, low in friction coefficient and long in service life. Thus, the self-lubricating bearing can be applied to working environments under the working conditions of heavy loading, low speed and severe environment.
Description
Technical field
The utility model engineering machinery technical field of bearings, especially relates to a kind of self oiling bearing.
Background technique
Sliding bearing is a kind of very important component in contemporary machinery, and its major function is supported mechanical solid of rotation, the mechanical load friction factor in order to reduction equipment in transmission process.At present, mostly existing sliding bearing is generally to comprise overcoat, in overcoat, be pressed into powder metallurgy liner, it can meet the usage requirement of certain intensity of load such sliding bearing, and still, its bearing capacity of such sliding bearing is lower, when in load heavier (heavy-duty low-speed) or the severe working position of environment, friction factor between itself and component is larger, and wears no resistance, and cannot meet usage requirement; For this reason, people have carried out long-term exploration, have proposed various solutions.
For example, Chinese patent literature discloses a kind of self-lubricating plain bearing [application number: 02279130.2], this bearing has a bearing matrix skeleton, on the inner circle working surface of bearing matrix skeleton, be staggered and be evenly distributed with some holes, in each hole, being equipped with the composite lubricated filler rod of solid-liquid being formed by solid lubricant, liquid phase lubricant oil and anti-wear additive.In addition, Chinese patent literature discloses a kind of base steel resin self oiling bearing [application number: 02295350.7], comprises metal-coating, and its internal surface is the hook-shaped or T word shape of sawtooth, and is inlaid with low friction, wear resistant layer.Interlayer of the present utility model has stronger combination force, for carrying in cannot often refueling, middle low speed linear reciprocating motion or the machinery that rotatablely moves provides well behaved bearing.In addition, Chinese patent literature discloses a kind of manufacture method [application number: 86103159] of sliding bearing, particularly with soft base alloy bimetallic strip, manufactures the method with thrust side barrel shape sliding bearing.Its manufacturing process comprises blanking, pre-bending, Cheng Yuan, car both ends of the surface, car flange groove, punching press flange, the flat limit of punching press, moulding.It is characterized in that soft base alloy bimetallic strip obtains special-shaped material base by blanking operation, through rolling punching press global formation.
Above-mentioned several schemes are in the working life that has to a certain degree extended bearing, but also at least have following defect: bearing capacity is low and wear no resistance, and cannot be applicable to the severe working position of heavy-duty low-speed or environment, cannot meet production requirement.
Model utility content
The purpose of this utility model is for the problems referred to above, and the self oiling bearing that a kind of bearing capacity is strong, wear resistance good and friction factor is low is provided.
For achieving the above object, the utility model has adopted following technical proposal: this self oiling bearing comprises the seamless body of being made by Bearing Steel, it is characterized in that, thereby the inwall spun casting of described seamless body has the copper cast layer of uniform thickness to form the compound body of integrative-structure, described compound body inwall has some equally distributed blind holes, described blind hole runs through copper cast layer and radially extends into seamless body, in each blind hole, have respectively solid lubricant, and the interior edge face of solid lubricant flushes with compound body inwall.Obviously, the utility model design is more reasonable, and structure is simpler, and bearing capacity is strong and wear resistance is good, and the low and long service life of friction factor, can be applicable to the operating environment under heavy-duty low-speed and environment bad working environments, meets the development trend of current social technology.
In above-mentioned self oiling bearing, described seamless body and copper cast layer connecting part form the mutual infiltration layer of steel copper, and blind hole runs through the mutual infiltration layer of steel copper.This structure has the high and advantage such as increase the service life of structural strength.
In above-mentioned self oiling bearing, the described monolateral thickness of seamless body is at least the twice of the monolateral thickness of copper cast layer, and the hardness of described seamless body is greater than the hardness of copper cast layer.This structure can strengthen bearing capacity.
In above-mentioned self oiling bearing, described solid lubricant is made by the powdered graphite that adds lubricant oil.
In above-mentioned self oiling bearing, described seamless body inwall is provided with interior circulation capillary oil-bearing structure, and described interior circulation capillary oil-bearing structure is communicated with each blind hole respectively.This structure can further reduce friction factor.
In above-mentioned self oiling bearing, the inwall two ends of described seamless body are respectively equipped with a circular groove, and described interior circulation capillary oil-bearing structure is communicated with circular groove.Circular groove can be used for holding dirt also can be for oil storage.
In above-mentioned self oiling bearing, described interior circulation capillary oil-bearing structure comprises the some groups of capillary channel that are arranged on seamless body inwall, the even interval of each capillary channel in each group capillary channel, and it is mutually arranged in a crossed manner respectively to organize capillary channel.
In above-mentioned self oiling bearing, on described seamless body, be also provided with some equally distributed through holes, in each through hole, have respectively solid lubricant, and the interior edge face of solid lubricant flushes with compound body inwall, exterior edge face flushes with the external wall of compound sleeve.This structure can guarantee to install the installation efficiency of assembling.
A production technology for self oiling bearing, this production technology comprises the steps:
A, get the raw materials ready: the seamless body that preparation is made by Bearing Steel, is smelted into copper water by Cu alloy material;
B, casting: by spun casting mode, copper water is cast in to seamless body inwall, casting temperature is 830 ℃～870 ℃ form copper cast layer at seamless body inwall after cooling, thereby make the compound body of integrative-structure;
C, perforate: at compound body inwall, process some equally distributed blind holes, and blind hole runs through copper cast layer and radially extends into seamless body;
D, grout: storing solid oiling agent respectively in each blind hole, and the interior edge face of solid lubricant flushes with compound body inwall, thus make self oiling bearing.
In the production technology of above-mentioned self oiling bearing, in above-mentioned step C, also being included in compound body inwall two ends processes respectively a circular groove and between two circular grooves, processes the interior circulation capillary oil-bearing structure being communicated with circular groove, the course of working of described interior circulation capillary oil-bearing structure is as follows: compound body is fixed on body fixture, cutter with a plurality of capillary sword faces is fixed on tool mounting, make to produce and circumferentially relatively rotate between cutter and compound body, make to produce and axially relatively move between compound body and cutter simultaneously, when cutter moves to the other end from compound body one end, make to produce and oppositely circumferentially relatively rotate between compound body and cutter, make to produce inversion axis to relatively moving between compound body and cutter simultaneously, and cutter is not axially exceeding circular groove all the time in course of working.
Compared with prior art, the advantage of this self oiling bearing and production technology thereof is: it is more reasonable to design, structure is simpler, bearing capacity is strong and wear resistance is good, low and the long service life of friction factor, can be applicable to the operating environment under heavy-duty low-speed and environment bad working environments, meet the development trend of current social technology.
Accompanying drawing explanation
Fig. 1 is the structural representation that the utility model provides.
Fig. 2 is the seamless sheath structure schematic diagram that the utility model provides.
In figure, seamless body 1, interior circulation capillary oil-bearing structure 11, capillary channel 11a, circular groove 12, through hole 13, copper cast layer 2, compound body 3, blind hole 31, solid lubricant 4, the mutual infiltration layer a of steel copper.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in more detail.
As shown in Figure 1-2, this seamless casting self oiling bearing comprises the seamless body 1 of being made by Bearing Steel, thereby the inwall spun casting at seamless body 1 has the copper cast layer 2 of uniform thickness to form the compound body 3 of integrative-structure, optimal design, this is seamless, and the monolateral thickness of body 1 is at least the twice of copper cast layer 2 monolateral thickness, the hardness of described seamless body 1 is greater than the hardness of copper cast layer 2, described compound body 3 inwalls have some equally distributed blind holes 31, described blind hole 31 runs through copper cast layer 2 and radially extends into seamless body 1, at the interior solid lubricant 4 that has respectively of each blind hole 31, and the interior edge face of solid lubricant 4 flushes with compound body 3 inwalls, the solid lubricant 4 is here made by the powdered graphite that adds lubricant oil.The present embodiment design is more reasonable, and structure is simpler, and bearing capacity is strong and wear resistance is good, and the low and long service life of friction factor, can be applicable to the operating environment under heavy-duty low-speed and environment bad working environments, meets the development trend of current social technology.
Specifically, the seamless body 1 of the present embodiment forms the mutual infiltration layer a of steel copper with copper cast layer 2 connecting parts, and blind hole 31 runs through the mutual infiltration layer a of steel copper.
In order further to reduce friction factor, at seamless body 1 inwall, be provided with interior circulation capillary oil-bearing structure 11, described interior circulation capillary oil-bearing structure 11 is communicated with each blind hole 31 respectively.In addition, in order to increase the service life, at the inwall two ends of seamless body 1, be respectively equipped with a circular groove 12, described interior circulation capillary oil-bearing structure 11 is communicated with circular groove 12, and this circular groove 12 can be used for holding dirt and/or oil storage.
Further, the interior circulation capillary oil-bearing structure 11 of the present embodiment comprises the some groups of capillary channel 11a that are arranged on seamless body 1 inwall, the even interval of each capillary channel 11a in each group capillary channel 11a, and it is mutually arranged in a crossed manner respectively to organize capillary channel 11a.Each blind hole 31 is communicated with each group capillary channel 11a point of intersection respectively.
Secondly, in order further to extend the working life of the present embodiment and to reduce user cost, on seamless body 1, be also provided with some equally distributed through holes 13, at the interior solid lubricant 4 that has respectively of each through hole 13, and the interior edge face of solid lubricant 4 flushes with compound body 3 inwalls, exterior edge face flushes with compound body 3 outer walls, when the solid lubricant 4 in blind hole 31 exhausts, can be lubricated by the solid lubricant 4 in through hole 13, or again change the solid lubricant 4 in through hole 13, be easy to change and can meet usage requirement.
A production technology for self oiling bearing, this production technology comprises the steps:
A, get the raw materials ready: the seamless body 1 that preparation is made by Bearing Steel, is smelted into copper water by Cu alloy material;
B, casting: by spun casting mode, copper water is cast in to seamless body 1 inwall, casting temperature is 850 ℃ form copper cast layer 2 at seamless body 1 inwall, thereby make the compound body 3 of integrative-structure after cooling;
C, perforate: at compound body 3 inwalls, process some equally distributed blind holes 31, and blind hole 31 runs through copper cast layer 2 and radially extends into seamless body 1;
D, grout: at the interior respectively storing solid of each blind hole 31 oiling agent 4, and the interior edge face of solid lubricant 4 flushes with compound body 3 inwalls, thereby makes self oiling bearing.
In addition, in above-mentioned step C, also being included in compound body 3 inwall two ends processes respectively a circular groove 12 and between two circular grooves 12, processes the interior circulation capillary oil-bearing structure 11 being communicated with circular groove 12, the course of working of described interior circulation capillary oil-bearing structure 11 is as follows: compound body 3 is fixed on body fixture, cutter with a plurality of capillary sword faces is fixed on tool mounting, make to produce and circumferentially relatively rotate between cutter and compound body 3, make to produce and axially relatively move between compound body 3 and cutter simultaneously, when cutter moves to the other end from compound body 3 one end, make to produce and oppositely circumferentially relatively rotate between compound body 3 and cutter, make to produce inversion axis to relatively moving between compound body 3 and cutter simultaneously, and cutter is not axially exceeding circular groove 12 all the time in course of working.
The casting temperature of this production technology can also be 840 ℃ and 860 ℃.Secondly, interior circulation capillary oil-bearing structure 11 is reticular structure, and each blind hole 31 is communicated with this interior circulation capillary oil-bearing structure 11 point of intersection respectively, and its bootable lubricant oil enters blind hole 31 or for storing lubricant oil.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various modifications or supplements or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Although more used the terms such as seamless body 1, interior circulation capillary oil-bearing structure 11, capillary channel 11a, circular groove 12, through hole 13, copper cast layer 2, compound body 3, blind hole 31, solid lubricant 4, the mutual infiltration layer a of steel copper herein, do not got rid of the possibility of using other term.Use these terms to be only used to describe more easily and explain essence of the present utility model; They are construed to any additional restriction is all contrary with the utility model spirit.
Claims (7)
1. a self oiling bearing, comprise the seamless body (1) of being made by Bearing Steel, it is characterized in that, thereby the inwall spun casting of described seamless body (1) has the copper cast layer (2) of uniform thickness forms the compound body (3) of integrative-structure, described compound body (3) inwall has some equally distributed blind holes (31), described blind hole (31) runs through copper cast layer (2) and radially extends into seamless body (1), in each blind hole (31), have respectively solid lubricant (4), and the interior edge face of solid lubricant (4) flushes with compound body (3) inwall.
2. self oiling bearing according to claim 1, is characterized in that, described seamless body (1) forms the mutual infiltration layer of steel copper (a) with copper cast layer (2) connecting part, and blind hole (31) runs through the mutual infiltration layer of steel copper (a).
3. self oiling bearing according to claim 1 and 2, is characterized in that, the described monolateral thickness of seamless body (1) is at least the twice of the monolateral thickness of copper cast layer (2), and the hardness of described seamless body (1) is greater than the hardness of copper cast layer (2).
4. self oiling bearing according to claim 3, is characterized in that, described seamless body (1) inwall is provided with interior circulation capillary oil-bearing structure (11), and described interior circulation capillary oil-bearing structure (11) is communicated with each blind hole (31) respectively.
5. self oiling bearing according to claim 4, is characterized in that, the inwall two ends of described seamless body (1) are respectively equipped with a circular groove (12), and described interior circulation capillary oil-bearing structure (11) is communicated with circular groove (12).
6. self oiling bearing according to claim 4, it is characterized in that, described interior circulation capillary oil-bearing structure (11) comprises the some groups of capillary channel (11a) that are arranged on seamless body (1) inwall, each capillary channel (11a) in each group capillary channel (11a) is interval evenly, and it is mutually arranged in a crossed manner respectively to organize capillary channel (11a).
7. self oiling bearing according to claim 4, it is characterized in that, on described seamless body (1), be also provided with some equally distributed through holes (13), in each through hole (13), have respectively solid lubricant (4), and the interior edge face of solid lubricant (4) flushes with compound body (3) inwall, exterior edge face flushes with compound body (3) outer wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320457833.1U CN203395020U (en) | 2013-07-26 | 2013-07-26 | Self-lubricating bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320457833.1U CN203395020U (en) | 2013-07-26 | 2013-07-26 | Self-lubricating bearing |
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| Publication Number | Publication Date |
|---|---|
| CN203395020U true CN203395020U (en) | 2014-01-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320457833.1U Expired - Fee Related CN203395020U (en) | 2013-07-26 | 2013-07-26 | Self-lubricating bearing |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103388623A (en) * | 2013-07-26 | 2013-11-13 | 诸暨市震达轴承有限公司 | Self-lubricating bearing and production process thereof |
-
2013
- 2013-07-26 CN CN201320457833.1U patent/CN203395020U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103388623A (en) * | 2013-07-26 | 2013-11-13 | 诸暨市震达轴承有限公司 | Self-lubricating bearing and production process thereof |
| CN103388623B (en) * | 2013-07-26 | 2017-07-14 | 诸暨市震达轴承有限公司 | Self-lubricating bearing and its production technology |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140115 Termination date: 20150726 |
|
| EXPY | Termination of patent right or utility model |