CN209836252U - Quenching die for large-size carburized steel double-row self-aligning roller bearing outer ring - Google Patents
Quenching die for large-size carburized steel double-row self-aligning roller bearing outer ring Download PDFInfo
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- CN209836252U CN209836252U CN201920347786.2U CN201920347786U CN209836252U CN 209836252 U CN209836252 U CN 209836252U CN 201920347786 U CN201920347786 U CN 201920347786U CN 209836252 U CN209836252 U CN 209836252U
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- quenching die
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- 238000010791 quenching Methods 0.000 title claims abstract description 65
- 230000000171 quenching effect Effects 0.000 title claims abstract description 65
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 23
- 239000010959 steel Substances 0.000 title claims abstract description 23
- 238000005255 carburizing Methods 0.000 claims abstract description 14
- 238000010438 heat treatment Methods 0.000 abstract description 4
- 238000007669 thermal treatment Methods 0.000 abstract description 2
- 238000001816 cooling Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
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- Rolling Contact Bearings (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The utility model belongs to the technical field of bearing heat treatment, a jumbo size carburization steel biserial self-aligning roller bearing outer lane quenching mould is proposed. The large-size carburizing steel double-row self-aligning roller bearing outer ring quenching die is provided with two outer ring quenching dies which are supported at two ends of a ferrule in an opposite way; the outer ring quenching die is provided with a disc, the lower end surface or the upper end surface of the disc is provided with an annular boss which is concentric with the disc, and the diameter of the annular boss is smaller than that of the disc; the outer circular surface of the annular boss and the lower end surface or the upper end surface of the disc form a supporting surface of the quenching die together; the two ferrules matched with the outer ring quenching die are symmetrically arranged; the inner wall surface of the ferrule, namely the raceway surface, is provided with an arc surface; two ends of the arc surface are respectively provided with a vertical surface matched with the supporting surface; a right-angle surface matched with the supporting surface is formed between the vertical surface and the upper end surface or the lower end surface of the outer ring quenching die. The utility model provides a carburized steel biserial self-aligning roller bearing outer lane thermal treatment after warp uncontrollable problem.
Description
Technical Field
The utility model belongs to the technical field of the bearing heat treatment, mainly relate to a jumbo size carburization steel biserial self-aligning roller bearing outer lane quenching mould, mainly be applicable to external diameter dimension 1000mm ~ 2800mm carburization steel biserial self-aligning roller bearing.
Background
The carburizing steel has excellent comprehensive performance and is suitable for manufacturing large-scale double-row self-aligning roller bearings, but the carburizing steel is adopted to manufacture large-scale double-row self-aligning roller bearing outer rings, and the size after heat treatment cannot be controlled, so the carburizing steel is not adopted to manufacture the large-scale double-row self-aligning roller bearing outer rings in the current industry;
the outer ring structure of the original double-row self-aligning roller bearing and the matching schematic diagram of the outer ring structure and a die are shown in figure 1, when the outer ring of the carburized steel double-row self-aligning roller bearing is quenched twice by using a conventional quenching die, the quenching die is provided with a plurality of fan-shaped blocks, and the inner holes of the fan-shaped blocks are in a tapered hole structure; a tensioning block matched with the conical hole is arranged corresponding to the conical hole, so that the tensioning block is tensioned in the conical hole when quenching is carried out, and the outer wall surfaces of the fan-shaped blocks form a supporting surface attached to the raceway surface of the outer ring; however, when quenching is carried out, the bearing surface is attached to the raceway surface, so that the bearing surface is uneven in stress and uncontrollable in deformation, and the bearing surface is attached to the raceway surface to influence the hardness of the raceway.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model aims at providing a quenching die for large-size carburizing steel double-row self-aligning roller bearing outer ring.
The utility model adopts the following technical scheme for accomplishing the above purpose:
a large-size carburizing steel double-row self-aligning roller bearing outer ring quenching die is provided with two outer ring quenching dies which are arranged up and down; the two outer ring quenching dies are oppositely supported at two ends of the ferrule; the outer ring quenching die is provided with a disc, the lower end surface or the upper end surface of the disc is provided with an annular boss which is concentric with the disc, and the diameter of the annular boss is smaller than that of the disc; the center of the outer ring quenching die is provided with a through hole for increasing the fluidity of a quenching medium, and the through hole penetrates through the disc and the annular boss; the outer circular surface of the annular boss and the lower end surface or the upper end surface of the disc form a supporting surface of the quenching die together; the two ferrules matched with the outer ring quenching die are symmetrically arranged; the inner wall surface of the ferrule, namely the raceway surface, is provided with an arc surface; two ends of the arc surface are respectively provided with a vertical surface matched with the supporting surface; and a right-angle surface matched with the supporting surface is formed between the vertical surface and the upper end surface or the lower end surface of the outer ring quenching die, so that the supporting surface is in surface-to-surface contact with the right-angle surface of the raceway surface.
The annular boss on the outer ring quenching die at the upper end of the ferrule is positioned on the lower end face of the disc.
The annular boss on the outer ring quenching die at the upper end of the ferrule is positioned on the upper end face of the disc.
The relationship between the height H1 of the bearing ring and the height H2 of the self-aligning roller outer ring is: h1= H2+ 2H.
The height of the vertical surface of the ferrule is the same as that of the annular boss of the outer ring quenching die.
The utility model provides a jumbo size carburization steel biserial self-aligning roller bearing outer lane quenching mould, two outer lane quenching moulds that set up about adopting, through the structure that adopts the face-to-face contact between holding surface and the raceway surface, solved carburization steel biserial self-aligning roller bearing outer lane thermal treatment after warp uncontrollable problem to the application of carburizing steel on jumbo size biserial self-aligning roller bearing outer lane has been realized.
Drawings
Fig. 1 is a schematic structural diagram of a quenching die and an outer ring in the prior art.
Fig. 2 is a view taken along direction a of fig. 1 with the collar and base removed.
Fig. 3 is a schematic structural diagram of the present invention.
Fig. 4 is an enlarged view of a portion a in fig. 3.
In the figure: 1. the device comprises an outer ring, 2 parts of a sector block, 3 parts of a tensioning block, 4 parts of an outer ring quenching die, 4-1 parts of a disc, 4-2 parts of an annular boss, 4-3 parts of a through hole, 5 parts of a ferrule.
Detailed Description
The invention is described in connection with the accompanying drawings and the embodiments:
as shown in fig. 3 and combined with fig. 4, the two large-size carburizing steel double-row self-aligning roller bearing outer ring quenching dies are arranged up and down; the two outer ring quenching dies 1 are oppositely supported at two ends of the ferrule 5; the outer ring quenching die 1 is provided with a disc 4-1, the lower end face or the upper end face of the disc 4-1 is provided with an annular boss 4-2 which is concentric with the disc 4-1, and the diameter of the annular boss 4-2 is smaller than that of the disc 4-1; the center of the outer ring quenching die is provided with a through hole for increasing the fluidity of a quenching medium, and the through hole penetrates through the disc 4-1 and the annular boss 4-2; the outer circular surface of the annular boss 4-2 and the lower end surface or the upper end surface of the disc 4-1 form a supporting surface of the quenching die together; the two ferrules 5 matched with the outer ring quenching die are symmetrically arranged; the inner wall surface of the ferrule 5-1, namely a raceway surface, is an arc surface 5-1; two ends of the arc surface 5-1 are respectively provided with a vertical surface 5-2 matched with the supporting surface; a right-angle surface matched with the supporting surface is formed between the vertical surface 5-2 and the upper end surface or the lower end surface of the outer ring quenching die, so that surface-to-surface contact is formed between the supporting surface and the right-angle surface of the rolling track surface.
The annular boss on the outer ring quenching die at the upper end of the ferrule is positioned on the lower end face of the disc.
The annular boss on the outer ring quenching die at the upper end of the ferrule is positioned on the upper end face of the disc.
The relationship between the height H1 of the bearing ring and the height H2 of the self-aligning roller outer ring is: h1= H2+ 2H.
The height of the vertical surface of the ferrule is the same as that of the annular boss of the outer ring quenching die.
When designing the quenching die, firstly determining the size of the outer ring, then determining the height of a supporting surface, namely the height of the annular boss of the outer ring quenching die, then determining the height of the ferrule according to the height of the supporting surface, namely determining the increased height h of two ends of the outer ring, and designing the die accordingly; carrying out vehicle machining according to the designed size of the supportable surface and the increased height dimension of the end surface; when the outer ring is quenched by heat treatment, two outer ring quenching dies are respectively placed at two ends of the ferrule, the supportable surface of the ferrule is aligned with the working surface of the die, and then the outer ring, the upper die and the lower die are placed into a quenching medium together for cooling; cooling the outer rings, then tightly holding the dies, and unloading the two outer ring quenching dies from the two end faces of the ferrule; and after the ring is tempered, cutting off the raised part h of the end face, and finally processing to the outer ring size required by a finished product.
The outer ring of the carburizing steel double-row self-aligning roller bearing is in a shrinkage trend during secondary quenching cooling, two outer ring quenching dies arranged up and down support the vertical surface of the ferrule, and a cooled product tightly holds the die so that the vertical surface of the ferrule is attached to the support surface of the die; the bearing surface is stressed uniformly, the deformation of the outer ring can be controlled, and the contact part of the die and the product is only the bearing surface part in the cooling process, so that the influence on the hardness of the raceway caused by the contact of the die and the product raceway is avoided.
Claims (5)
1. A quenching die for a large-size carburizing steel double-row self-aligning roller bearing outer ring is characterized in that: the outer ring quenching dies are arranged up and down; the two outer ring quenching dies are oppositely supported at two ends of the ferrule; the outer ring quenching die is provided with a disc, the lower end surface or the upper end surface of the disc is provided with an annular boss which is concentric with the disc, and the diameter of the annular boss is smaller than that of the disc; the center of the outer ring quenching die is provided with a through hole for increasing the fluidity of a quenching medium, and the through hole penetrates through the disc and the annular boss; the outer circular surface of the annular boss and the lower end surface or the upper end surface of the disc form a supporting surface of the quenching die together; the two ferrules matched with the outer ring quenching die are symmetrically arranged; the inner wall surface of the ferrule, namely the raceway surface, is provided with an arc surface; two ends of the arc surface are respectively provided with a vertical surface matched with the supporting surface; and a right-angle surface matched with the supporting surface is formed between the vertical surface and the upper end surface or the lower end surface of the outer ring quenching die, so that the supporting surface is in surface-to-surface contact with the right-angle surface of the raceway surface.
2. The quenching die for the large-size carburizing steel double-row self-aligning roller bearing outer ring according to claim 1, characterized in that: the annular boss on the outer ring quenching die at the upper end of the ferrule is positioned on the lower end face of the disc.
3. The quenching die for the large-size carburizing steel double-row self-aligning roller bearing outer ring according to claim 1, characterized in that: the annular boss on the outer ring quenching die at the upper end of the ferrule is positioned on the upper end face of the disc.
4. The quenching die for the large-size carburizing steel double-row self-aligning roller bearing outer ring according to claim 1, characterized in that: the relationship between the height H1 of the bearing ring and the height H2 of the self-aligning roller outer ring is: h1= H2+ 2H.
5. The quenching die for the large-size carburizing steel double-row self-aligning roller bearing outer ring according to claim 1, characterized in that: the height of the vertical surface of the ferrule is the same as that of the annular boss of the outer ring quenching die.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920347786.2U CN209836252U (en) | 2019-03-19 | 2019-03-19 | Quenching die for large-size carburized steel double-row self-aligning roller bearing outer ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920347786.2U CN209836252U (en) | 2019-03-19 | 2019-03-19 | Quenching die for large-size carburized steel double-row self-aligning roller bearing outer ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209836252U true CN209836252U (en) | 2019-12-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920347786.2U Withdrawn - After Issue CN209836252U (en) | 2019-03-19 | 2019-03-19 | Quenching die for large-size carburized steel double-row self-aligning roller bearing outer ring |
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| CN (1) | CN209836252U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109706307A (en) * | 2019-03-19 | 2019-05-03 | 洛阳Lyc轴承有限公司 | Large scale carburizing steel double-row self-aligning roller bearing outer ring quenching mould |
| CN111644597A (en) * | 2020-04-30 | 2020-09-11 | 中国航发南方工业有限公司 | Casting blank for ring-shaped part and method for manufacturing casting blank |
-
2019
- 2019-03-19 CN CN201920347786.2U patent/CN209836252U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109706307A (en) * | 2019-03-19 | 2019-05-03 | 洛阳Lyc轴承有限公司 | Large scale carburizing steel double-row self-aligning roller bearing outer ring quenching mould |
| CN109706307B (en) * | 2019-03-19 | 2024-05-03 | 洛阳轴承集团股份有限公司 | Quenching die for outer ring of double-row self-aligning roller bearing made of large-size carburizing steel |
| CN111644597A (en) * | 2020-04-30 | 2020-09-11 | 中国航发南方工业有限公司 | Casting blank for ring-shaped part and method for manufacturing casting blank |
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20191224 Effective date of abandoning: 20240503 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20191224 Effective date of abandoning: 20240503 |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |