CN206874644U - A kind of high-precision bearing - Google Patents
A kind of high-precision bearing Download PDFInfo
- Publication number
- CN206874644U CN206874644U CN201720601990.3U CN201720601990U CN206874644U CN 206874644 U CN206874644 U CN 206874644U CN 201720601990 U CN201720601990 U CN 201720601990U CN 206874644 U CN206874644 U CN 206874644U
- Authority
- CN
- China
- Prior art keywords
- ring
- outer ring
- low
- melting alloy
- snap ring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000000919 ceramic Substances 0.000 claims abstract description 46
- 229910000743 fusible alloy Inorganic materials 0.000 claims abstract description 25
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 22
- 238000003780 insertion Methods 0.000 claims abstract description 22
- 230000037431 insertion Effects 0.000 claims abstract description 22
- 239000010959 steel Substances 0.000 claims abstract description 22
- 239000002184 metal Substances 0.000 claims description 12
- 229910000648 terne Inorganic materials 0.000 claims description 4
- 229910052573 porcelain Inorganic materials 0.000 claims description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims 2
- 229910003978 SiClx Inorganic materials 0.000 claims 1
- 229910052757 nitrogen Inorganic materials 0.000 claims 1
- 239000011324 bead Substances 0.000 abstract description 13
- 238000010438 heat treatment Methods 0.000 abstract description 8
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 229910045601 alloy Inorganic materials 0.000 description 5
- 239000000956 alloy Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 229910052581 Si3N4 Inorganic materials 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000005496 eutectics Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000007634 remodeling Methods 0.000 description 2
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
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- Rolling Contact Bearings (AREA)
Abstract
A kind of high-precision bearing, the ceramic balls being laid in including a ceramic inner ring, steel outer ring and full ball between ceramic inner ring and steel outer ring, the steel outer ring is spliced by outer ring after a preceding outer ring and one, the preceding outer ring rear end is smooth and is arranged with an insertion chamber, and the insertion chamber outer face is provided with Ka Gou and insertion intracavitary end face tilts down；Outer ring front end is smooth after described and is convexly equipped with a snap ring, is provided with barb on front side of the snap ring, the snap ring is caught in inserted in cavities and barb and is caught in Ka Gouzhong；Also include a low-melting alloy ring, the low-melting alloy ring is put into the insertion chamber in assembling and is located on front side of snap ring, and shape is remolded after being heated and is filled between snap ring and insertion intracavitary end face.This practical beneficial effect is：The characteristics of remolding shape and heat-resist ceramet using low-melting alloy low temperature, outer ring is divided into two and is easy to bead loading, and the splicing of outer ring is realized in overall heating again after bead loading, without opening bead installing hole.
Description
Technical field
It the utility model is related to a kind of high-precision bearing.
Background technology
Ceramic bearing is emerging bearing, have it is corrosion-resistant, insulation, the characteristic of oil-free lubrication, be widely used in various underloadings
Environment.In general, in order to improve the bearing capacity of ceramic bearing, we can be reduced using the ceramic bearing of full ball
The load of single ceramic ball, but existing full ball type, one is often set on inner ring or outer ring can be with detachable
The bead installing hole of block easily knocks broken cracking to bead loading, ceramic balls in this bead installing hole.
The content of the invention
In order to overcome the shortcomings of that existing ceramic bearing realizes that full ball is not easy, the utility model provides a kind of no bead installing hole
High-precision bearing and its manufacturing process.
The technical scheme in the invention for solving the technical problem is：A kind of high-precision bearing, including a ceramic inner ring,
Steel outer ring and full ball are laid in the ceramic balls between ceramic inner ring and steel outer ring, and the steel outer ring is by a preceding outer ring and one
Outer ring is spliced after individual, and the preceding outer ring rear end is smooth and is arranged with an insertion chamber, and the insertion chamber outer face is provided with
Ka Gou and insertion intracavitary end face tilts down；Outer ring front end is smooth after described and is convexly equipped with a snap ring, is set on front side of the snap ring
There is barb, the snap ring is caught in inserted in cavities and barb and is caught in Ka Gouzhong；Also include a low-melting alloy ring, the low melting point
Alloy hoop is put into the insertion chamber in assembling and is located on front side of snap ring, and shape is remolded after being heated and is filled in snap ring and insertion intracavitary end
Between face.
Further increase it is fault-tolerant, be provided with the inside of the preceding outer ring and rear outer ring the first half raceway groove that is matched with ceramic balls and after
Half raceway groove, and do not contacted on the upside of first half raceway groove and later half raceway groove provided with indent with ceramic balls.
One kind selection, the ceramic inner ring and ceramic balls use silicon nitride ceramics.
Another kind selection, the low-melting alloy ring use terne metal.
Also include following supplementary features：Sealing ring is additionally provided between the ceramic inner ring and steel outer ring.
A kind of manufacturing process for manufacturing above-mentioned high-precision bearing, including following process：
A, ceramic inner ring and rear outer ring are lain on installation mold, fills ceramic balls successively therebetween；
B, low-melting alloy ring is placed on the snap ring of rear outer ring, is then pressed into preceding outer ring from top to bottom so that low melting point
Alloy hoop and snap ring are all inserted into the inserted in cavities of preceding outer ring, the front end face of outer ring after the rear end face fitting of preceding outer ring.
C, some ceramic inner rings combined, steel outer ring, ceramic balls after B techniques are put into a metal being vertically arranged
In cylinder, metal cylinder internal diameter is consistent with steel outer ring external diameter, and rear outer ring is under, and preceding outer ring is in upper, upper-lower compacting；
D, metal cylinder is heated, temperature is higher than the fusing point of low-melting alloy ring, more than 20 minutes time, after heating
Ceramic inner ring, steel outer ring, ceramic balls carry out naturally cooling to room temperature, then taken out from metal cylinder.In step D, eutectic
Point alloy hoop fills snap ring and the space inserted between intracavitary end face after melting so that snap ring be fixed in it is inserted in cavities can not
Take out.
E, sealing ring is assembled.
Further increase the efficiency of heating surface, temperature is higher than 30 degrees Celsius of low-melting alloy ring in the step D.
The utility model is consistent compared with the bearing of technology when in use, will not be repeated here.
The beneficial effects of the utility model are：1st, shape is remolded using low-melting alloy low temperature and ceramet is heat-resist
The characteristics of, outer ring is divided into two and is easy to bead loading, and the splicing of outer ring is realized in overall heating again after bead loading, without opening bead installing hole.
2nd, only spliced the problem of having preceding outer ring and low rear outer ring bonding strength with clamping using low-melting alloy, use steel
The snap ring with barb and the insertion inclined setting of intracavitary are made, following interval is filled with after low-melting alloy ring thermal deformation, so as to
So that the connection of preceding outer ring and rear outer ring is very firm.
Brief description of the drawings
Fig. 1 is that ceramic balls of the present utility model are distributed horizontal schematic diagram.
Fig. 2 is sectional view of the present utility model.
Fig. 3 is preceding outer ring and rear outer ring attachment structure enlarged drawing in Fig. 2.
Fig. 4, Fig. 5, Fig. 6 are assembling schematic diagrams of the present utility model, and wherein Fig. 6 is low-melting alloy ring remodeling shape after heating
Schematic diagram afterwards.
Embodiment
The utility model is described in further detail with reference to the accompanying drawings and detailed description.
With reference to accompanying drawing 1 to 6, a kind of high-precision bearing, including a ceramic inner ring 1, steel outer ring 2 and full ball are laid in pottery
Ceramic balls 3 between porcelain inner ring 1 and steel outer ring 2, the steel outer ring 2 spliced by outer ring 5 after a preceding outer ring 4 and one and
Into the preceding rear end of outer ring 4 is smooth and is arranged with an insertion chamber 6, and insertion chamber 6 outer face is provided with card ditch 7 and inserted
The inner face of chamber 6 tilts down；The front end of outer ring 5 is smooth after described and is convexly equipped with a snap ring 8, and the front side of snap ring 8 is provided with barb
9, the snap ring 8 is caught in insertion chamber 6 and barb 9 is caught in card ditch 7；Also include a low-melting alloy ring 10, the eutectic
Point alloy hoop 10 is put into the insertion chamber 6 in assembling and be located at the front side of snap ring 8, and it is heated after remodeling shape be filled in snap ring 8 with it is slotting
Enter between intracavitary end face.
Further increase fault-tolerant, the preceding outer ring 4 and the inner side of rear outer ring 5 are provided with the first half raceway groove matched with ceramic balls 3
11 and later half raceway groove 12, and first half raceway groove 11 and the upside of later half raceway groove 12 do not contact provided with indent 13 with ceramic balls 3.
One kind selection, the ceramic inner ring 1 and ceramic balls 3 use silicon nitride ceramics.
Another kind selection, the low-melting alloy ring 10 use terne metal.
Also include following supplementary features：Sealing ring 14 is additionally provided between the ceramic inner ring and steel outer ring.
A kind of manufacturing process for manufacturing above-mentioned high-precision bearing, including following process：
A, ceramic inner ring 1 and rear outer ring 5 are lain on installation mold, fills ceramic balls 3 successively therebetween；
B, low-melting alloy ring 10 is placed on the snap ring 8 of rear outer ring 5, is then pressed into preceding outer ring 4 from top to bottom so that low
Melting alloy ring 10 and snap ring 8 are all inserted into the insertion chamber 6 of preceding outer ring 4, until outer ring 5 after the rear end face fitting of preceding outer ring 4
Front end face.
C, some ceramic inner rings 1 combined after B techniques, steel outer ring 2, ceramic balls 3 are put into one to be vertically arranged
In metal cylinder, metal cylinder internal diameter is consistent with the external diameter of steel outer ring 2, and rear outer ring 5 is under, and preceding outer ring 4 is in upper, upper-lower compacting；
D, metal cylinder is heated, temperature is higher than the fusing point of low-melting alloy ring 10, more than 20 minutes time, to heating
Ceramic inner ring 1, steel outer ring 2, ceramic balls 3 afterwards carry out naturally cooling to room temperature, are then taken out from metal cylinder.In step D,
Low-melting alloy ring 10 melt after fill snap ring 8 and insert the inner face of chamber 6 between space so that snap ring 8 be fixed in it is slotting
Entering in chamber 6 to take out.
E, sealing ring 14 is assembled.
Further increase the efficiency of heating surface, temperature is higher than 1030 degrees Celsius of low-melting alloy ring, because using in the step D
Terne metal be the alloy of 183 degrees Celsius of fusing points, therefore heating-up temperature is 213 degrees Celsius, and the heat time, we selected 30 minutes.
The utility model is consistent compared with the bearing of technology when in use, will not be repeated here.
The beneficial effects of the utility model are：1st, shape is remolded using low-melting alloy low temperature and ceramet is heat-resist
The characteristics of, outer ring is divided into two and is easy to bead loading, and the splicing of outer ring is realized in overall heating again after bead loading, without opening bead installing hole.
2nd, only spliced the problem of having preceding outer ring and low rear outer ring bonding strength with clamping using low-melting alloy, use steel
The snap ring with barb and the insertion inclined setting of intracavitary are made, following interval is filled with after low-melting alloy ring thermal deformation, so as to
So that the connection of preceding outer ring and rear outer ring is very firm.
It is obvious to a person skilled in the art that the utility model is not limited to the details of above-mentioned one exemplary embodiment, and
And in the case of without departing substantially from spirit or essential attributes of the present utility model, it can realize that this practicality is new in other specific forms
The scheme of type, in the scope of protection of the utility model.
Claims (4)
- A kind of 1. high-precision bearing, it is characterised in that：Ceramic inner ring is laid in including a ceramic inner ring, steel outer ring and full ball Ceramic balls between steel outer ring, the steel outer ring are spliced by outer ring after a preceding outer ring and one, the preceding outer ring Rear end is smooth and is arranged with an insertion chamber, and the insertion chamber outer face is provided with Ka Gou and insertion intracavitary end face tilts down； Outer ring front end is smooth after described and is convexly equipped with a snap ring, is provided with barb on front side of the snap ring, the snap ring is caught in inserted in cavities And barb is caught in Ka Gouzhong；Also include a low-melting alloy ring, the low-melting alloy ring is put into the insertion in assembling Chamber is located on front side of snap ring, and shape is remolded after being heated and is filled between snap ring and insertion intracavitary end face.
- 2. high-precision bearing according to claim 1, it is characterised in that：It is provided with and pottery on the inside of the preceding outer ring and rear outer ring The first half raceway groove and later half raceway groove of porcelain ball matching, and do not connect on the upside of first half raceway groove and later half raceway groove provided with indent with ceramic balls Touch.
- 3. high-precision bearing according to claim 1, it is characterised in that：The ceramic inner ring and ceramic balls use nitrogen SiClx ceramics.
- 4. high-precision bearing according to claim 1, it is characterised in that：The low-melting alloy ring uses terne metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720601990.3U CN206874644U (en) | 2017-05-26 | 2017-05-26 | A kind of high-precision bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720601990.3U CN206874644U (en) | 2017-05-26 | 2017-05-26 | A kind of high-precision bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206874644U true CN206874644U (en) | 2018-01-12 |
Family
ID=61337372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720601990.3U Expired - Fee Related CN206874644U (en) | 2017-05-26 | 2017-05-26 | A kind of high-precision bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206874644U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107165942A (en) * | 2017-05-26 | 2017-09-15 | 环驰轴承集团有限公司 | A kind of high-precision bearing and its manufacturing process |
-
2017
- 2017-05-26 CN CN201720601990.3U patent/CN206874644U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107165942A (en) * | 2017-05-26 | 2017-09-15 | 环驰轴承集团有限公司 | A kind of high-precision bearing and its manufacturing process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180112 |