CN2670371Y - Apparatus for decreasing deformation of bearing ring by quenching - Google Patents
Apparatus for decreasing deformation of bearing ring by quenching Download PDFInfo
- Publication number
- CN2670371Y CN2670371Y CNU032790953U CN03279095U CN2670371Y CN 2670371 Y CN2670371 Y CN 2670371Y CN U032790953 U CNU032790953 U CN U032790953U CN 03279095 U CN03279095 U CN 03279095U CN 2670371 Y CN2670371 Y CN 2670371Y
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- Prior art keywords
- bearing ring
- intermediate transport
- reduces
- transport band
- quenching
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- Expired - Lifetime
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- Rolling Contact Bearings (AREA)
Abstract
The utility model relates to an apparatus for decreasing deformation of bearing ring by quenching, comprising a heating stove. The inner part of the heating stove is provided with a conveyor, and the lower part of the heating stove is provided with an oil tank. A blanking bucket is arranged between the heating stove and the oil tank. The inner part of the oil tank is also provided with a lifting belt with a baffle plate. In addition, a short conveyor is added between lifting belt and the oil surface inside the oil tank. The utility model is characterized in that the apparatus for decreasing deformation of bearing ring by quenching has simple structure, can decrease the quenching ovality of a bearing ring and can reduce the taper of the bearing ring.
Description
Technical field
The utility model relates to a kind of quenching device, especially relates to a kind of device that reduces the bearing ring quenching strain.
Background technology
Can produce oval when bearing ring quenches usually and tapering (being commonly referred to hydraucone) distortion, the working (machining) efficiency and the quality product of grinding process after the influence.The bearing quenching device that uses mainly comprises the travelling belt 2 of process furnace 1 and inside heating furnace at present, and the process furnace below is provided with oil groove 4, and there is a lifting guipure 5 that is provided with baffle plate 6 oil groove inside, is provided with material-falling hopper 3 between process furnace 1 and oil groove 4, as shown in Figure 1.
Bearing ring falls into oil groove and produces the reason of ovalizing deflection (only analyzing the distortion that lasso enters the oil groove process) mainly owing to bump causes.Workpiece 7 falls into oil groove after heating from stove, at first with the pasta bump, and lasso that has then and the twine bump that promotes guipure, lasso that has and the baffle plate on the guipure or the ferrule impacts that falls into earlier.If lasso and twine bump, because the shock absorption of twine, the reactive force that gives lasso is little, then is out of shape little; Then impact force is just big if lasso and baffle plate or the lasso that falls into earlier clash into mutually, and distortion also just greatly.In addition, the oil groove degree of depth is darker, the weight of lasso is heavier, because the effect of universal gravity constant, impact force is also bigger, and corresponding distortion is also bigger.So the big distance in the present device that uses between pasta and the lifting guipure, and the bump between bearing and baffle plate, bearing and bearing has increased the deformation extent of lasso.
The reason that bearing ring produces tapering proves because the speed of cooling difference at lasso two ends through experimental study, thereby causes due to time difference of martensitic transformation.Use conventional device, when lasso fell on promoting guipure, an end of lasso contacted with metal mesh belt, and the other end contacts with quenching oil.An end that contacts with metal mesh belt is to dispel the heat by metallic conductance, so speed of cooling is fast, then dispel the heat by convection current by the upper end of oil, so speed of cooling is slow.The fast end of speed of cooling reaches the MS point earlier, beginning martensitic transformation, volumetric expansion.And the upper end is because the effect of lower end martensite transformation stress, the upper end also has expansion slightly, then, after lower end Ma Shi phase transformation is finished, the upper end produces martensitic transformation, and volume swells, and therefore the upper end is martensitic phase variable expansion and stress expansible summation, this causes the upper end size of lasso bigger than lower end size, forms tapering.So present employed quenching device makes the two ends up and down of lasso produce different speed of cooling easily, thereby causes the difference of two ends turgidity, causes lasso to produce distortion, forms tapering.
In the actual quenching process, the ovalizing deflection of lasso and taper deformation often exist simultaneously, so two kinds of distortion that reduce bearing ring simultaneously are particularly important.
Summary of the invention
The utility model mainly is to solve existing bearing ring quenching device when quenching, and lasso is easy to generate the technical problem of ellipse and/or taper deformation etc., and a kind of quenching device that prevents to produce when bearing ring from quenching ellipse and/or taper deformation is provided.
The utility model has also solved the bad and not high problem of efficient of existing bearing ring quenching device quenching effect simultaneously, and a kind of device with greater efficiency and better quenching effect is provided.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals:
A kind of device that reduces the bearing ring quenching strain is provided, comprise process furnace 1, be provided with travelling belt 2 in the inside of process furnace, below process furnace, be provided with oil groove 4, between process furnace and oil groove, be provided with material-falling hopper 3, also be provided with a lifting guipure 5 that baffle plate 6 is arranged in oil groove inside, it is characterized in that in described oil groove pasta and promote between the guipure having acquired an intermediate transport band 8, as shown in Figure 2.
The influence factor of bearing ring quenching strain is a lot, and as factors such as raw material quality, annealing quality, blank quality, Vehicle Processing and heat treatment process parameters, the utility model is to acquire a unbaffled intermediate transport band between pasta and lifting guipure.The workpiece that comes out from process furnace at first falls to the intermediate transport band behind material-falling hopper, and the speed of this guipure is faster than stove Intranet tape speed, and this has reduced the drop of lasso on the one hand, thereby has reduced the impact of lasso and guipure; Avoided on the other hand lasso and hard baffle plate and with the collision of the lasso that falls earlier, lasso only with the guipure collision, and the shock absorption of guipure has reduced the surging force of lasso, thereby has reduced the possibility that produces ovalizing deflection when bearing ring quenches.
As preferably, in the described device that reduces the bearing ring quenching strain, the intermediate transport band of setting can have the function of speed control by frequency variation, adjusts its speed so that the bump of bearing ring minimizing to the full extent and baffle plate and other bearing ring.
As preferably, in the described device that reduces the bearing ring quenching strain, a slide plate that can make the workpiece upset is installed at an end of intermediate transport band, the lower edge of this slide plate is positioned at and promotes on the guipure, can significantly reduce the taper deformation of lasso like this.The reason that produces tapering is because thereby the inconsistent martensitic transformation that makes of the speed of cooling at lasso two ends exists successively, the only generation phase transformation of elder generation's martensitic transformation makes volumetric expansion, the phase transformation that not only has of back martensitic transformation produce to be expanded, and also has because of first martensitic transformation one end to give the expansion that its transformation stress produces.Therefore the latter's dimensional change is big, thereby makes lasso form tapering.After adopting this device, workpiece falls to the intermediate transport band through material-falling hopper and tentatively cools off, and stay for some time, dropping down onto on the lifting guipure through 180 ° of slide plate upsets under the drive of travelling belt then, this process makes that the heat transfer rate at lasso two ends is suitable, thereby dwindled the time difference of lasso two ends martensitic transformations, reached the purpose that reduces tapering.
As preferably, in the described device that reduces the bearing ring quenching strain, be not provided with baffle plate on the intermediate transport band, when workpiece is reached an end of travelling belt, can drop down onto on the slide plate easily like this, and then be slipped to through slide plate and to promote on the guipure.
As preferably, in the described device that reduces the bearing ring quenching strain, the intermediate transport band is netted travelling belt, and also available travelling belt with holes replaces.This utilizes its shock absorption to reduce the impact force of workpiece and travelling belt on the one hand, thereby has reduced the possibility of lasso generation ovalizing deflection; Reticulated structure has reduced the contact area of workpiece and travelling belt on the other hand, and this has reduced the possibility of lasso generation taper deformation to a certain extent, has also improved the quenching efficiency of device simultaneously.
As preferably, in the described device that reduces the bearing ring quenching strain, the lifting guipure acting in conjunction of intermediate transport band and its below is divided into two sections to the drop of workpiece.The utility model intermediate transport band should be located under the pasta in the certain limit, and when the upper surface of middle travelling belt and the distance between the pasta were in 1/3 reservoir depth, the distortion of workpiece was less.
As preferably, in the described device that reduces the bearing ring quenching strain, be provided with distribution plate in the lower end of material-falling hopper, oil groove inside is provided with two or more intermediate transport band simultaneously.Bearing is assigned on several parallel intermediate transport bands through distribution plate then through dropping down onto earlier behind the material-falling hopper on the distribution plate, has so both reduced the collision opportunity between bearing, has improved quenching efficiency again.
Therefore, the utlity model has simple in structurely, both can reduce the quenching ovality of bearing ring, can reduce the characteristics of tapering etc. again, improved the quenching effect of bearing ring, improved the working efficiency of bearing quenching device.
Description of drawings
Accompanying drawing 1 is the structural representation of prior art centre bearer lasso quenching device;
Accompanying drawing 2 is structural representations that the utility model reduces bearing ring quenching strain device.
Embodiment
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment 1: as shown in Figure 2, reduce the device of bearing ring quenching strain, the workpiece 7 that comes out from process furnace at first drops on the level and smooth intermediate transport band 8 through material-falling hopper 3, and stays for some time and tentatively cool off.Under the effect of travelling belt, cool off once more on the lifting guipure 5 that drops down onto the lower end through slide plate 9 that overturns 180 ° then, finally be raised guipure and be sent to other workshop section.This reduced on the one hand the drop of lasso and lasso and hard baffle plate 6 or with the collision of the lasso that falls earlier, make bearing ring two ends speed of cooling suitable on the other hand, dwindle the time difference of lasso two ends martensitic transformations, thereby reduced the possibility that produces ovality and tapering when bearing ring quenches.
Embodiment 2: the workpiece 7 that comes out from process furnace drops down onto earlier on the distribution plate 10 through material-falling hopper 3, is assigned on several parallel intermediate transport bands through distribution plate then, has so both reduced the collision opportunity between bearing, has improved quenching efficiency again.Other concrete production technique repeats no more with embodiment 1.
Claims (10)
1. device that reduces the bearing ring quenching strain, comprise process furnace (1), be provided with travelling belt (2) in the inside of process furnace, below process furnace, be provided with oil groove (4), between process furnace and oil groove, be provided with material-falling hopper (3), also be provided with a lifting guipure (5) that baffle plate (6) is arranged in oil groove inside, it is characterized in that in described oil groove, having acquired an intermediate transport band (8) between the pasta and elevator belt.
2. the device that reduces the bearing ring quenching strain according to claim 1 is characterized in that described intermediate transport band (8) can be connected with RHVC.
3. the device that reduces the bearing ring quenching strain according to claim 1 and 2 is characterized in that being provided with the slide plate (9) that can make the workpiece upset at an end of intermediate transport band (8), and the lower edge of this slide plate is positioned at and promotes on the guipure (5).
4. the device that reduces the bearing ring quenching strain according to claim 1 and 2 is characterized in that intermediate transport band (8) is netted travelling belt.
5. the device that reduces the bearing ring quenching strain according to claim 3 is characterized in that intermediate transport band (8) is netted travelling belt.
6. according to claim 1 or the 2 or 5 described devices that reduce the bearing ring quenching strain, it is characterized in that the upper surface of intermediate transport band (8) and the distance between the pasta are in 1/3 reservoir depth.
7. the device that reduces the bearing ring quenching strain according to claim 3 is characterized in that the upper surface of intermediate transport band (8) and the distance between the pasta are in 1/3 reservoir depth.
8. the device that reduces the bearing ring quenching strain according to claim 4 is characterized in that the upper surface of intermediate transport band (8) and the distance between the pasta are in 1/3 reservoir depth.
9. the device that reduces the bearing ring quenching strain according to claim 1 and 2 is characterized in that being provided with distribution plate (8) in the lower end of material-falling hopper, and oil groove inside is provided with two or more intermediate transport band simultaneously.
10. the device that reduces the bearing ring quenching strain according to claim 3 is characterized in that being provided with distribution plate (10) in the lower end of material-falling hopper, and oil groove inside is provided with two or more intermediate transport band.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU032790953U CN2670371Y (en) | 2003-09-25 | 2003-09-25 | Apparatus for decreasing deformation of bearing ring by quenching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU032790953U CN2670371Y (en) | 2003-09-25 | 2003-09-25 | Apparatus for decreasing deformation of bearing ring by quenching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2670371Y true CN2670371Y (en) | 2005-01-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU032790953U Expired - Lifetime CN2670371Y (en) | 2003-09-25 | 2003-09-25 | Apparatus for decreasing deformation of bearing ring by quenching |
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| Country | Link |
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| CN (1) | CN2670371Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101654735B (en) * | 2009-06-30 | 2011-06-08 | 大连冶金轴承股份有限公司 | Large-scale self-aligning roller bearing ring quenching and cooling method |
| CN102312076A (en) * | 2011-08-19 | 2012-01-11 | 上海锦荣矿山机械有限公司 | Device for quenching of elongated steel wire |
| CN103572017A (en) * | 2013-09-26 | 2014-02-12 | 海盐三马标准件有限公司 | Oil pool quenching equipment |
| CN104017978A (en) * | 2014-06-27 | 2014-09-03 | 德阳世城电力设备制造有限公司 | Quenching cooler after bearing ring hot forging |
| CN104962715A (en) * | 2015-06-05 | 2015-10-07 | 湖北三环锻造有限公司 | Steam isolating device for discharging port of mesh belt furnace |
| CN108251617A (en) * | 2018-04-12 | 2018-07-06 | 廊坊双飞碟簧有限公司 | A kind of mesh-belt quenching furnace blanking buffer |
| CN112239805A (en) * | 2020-08-28 | 2021-01-19 | 杭州多宝电子有限公司 | Heat treatment process for high-temperature-resistant bearing sleeve of automobile generator |
-
2003
- 2003-09-25 CN CNU032790953U patent/CN2670371Y/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101654735B (en) * | 2009-06-30 | 2011-06-08 | 大连冶金轴承股份有限公司 | Large-scale self-aligning roller bearing ring quenching and cooling method |
| CN102312076A (en) * | 2011-08-19 | 2012-01-11 | 上海锦荣矿山机械有限公司 | Device for quenching of elongated steel wire |
| CN103572017A (en) * | 2013-09-26 | 2014-02-12 | 海盐三马标准件有限公司 | Oil pool quenching equipment |
| CN104017978A (en) * | 2014-06-27 | 2014-09-03 | 德阳世城电力设备制造有限公司 | Quenching cooler after bearing ring hot forging |
| CN104017978B (en) * | 2014-06-27 | 2016-04-06 | 德阳世城电力设备制造有限公司 | Quenching cooler after bearing ring forge hot pressure |
| CN104962715A (en) * | 2015-06-05 | 2015-10-07 | 湖北三环锻造有限公司 | Steam isolating device for discharging port of mesh belt furnace |
| CN104962715B (en) * | 2015-06-05 | 2017-02-01 | 湖北三环锻造有限公司 | Steam isolating device for discharging port of mesh belt furnace |
| CN108251617A (en) * | 2018-04-12 | 2018-07-06 | 廊坊双飞碟簧有限公司 | A kind of mesh-belt quenching furnace blanking buffer |
| CN108251617B (en) * | 2018-04-12 | 2023-11-24 | 廊坊双飞碟簧有限公司 | Mesh belt quenching furnace blanking buffer |
| CN112239805A (en) * | 2020-08-28 | 2021-01-19 | 杭州多宝电子有限公司 | Heat treatment process for high-temperature-resistant bearing sleeve of automobile generator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20130925 Granted publication date: 20050112 |