CN2499635Y - Flying wheel for rolling mill - Google Patents
Flying wheel for rolling mill Download PDFInfo
- Publication number
- CN2499635Y CN2499635Y CN 01262151 CN01262151U CN2499635Y CN 2499635 Y CN2499635 Y CN 2499635Y CN 01262151 CN01262151 CN 01262151 CN 01262151 U CN01262151 U CN 01262151U CN 2499635 Y CN2499635 Y CN 2499635Y
- Authority
- CN
- China
- Prior art keywords
- flying wheel
- flywheel
- thickness
- wheel
- rolling mill
- 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
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Abstract
A flying wheel for rolling mill belongs to the flying wheel parts technical field. The problem to be solved is to provide a flying wheel for rolling mill with uniformly distributed stress as well as safe and reliable use. The improvement lies in that a wheel spoke of a flying wheel adopts an annular plane board structure, and the thickness of the wheel spoke is close to the thickness of the flying wheel. Compared with the structure of the prior flying wheel, the thickness change gradient of the connecting part of the wheel spoke and the flying wheel is small, which eliminates the structural defects that the connecting position is concentrated in stress and easy to produce crack fracture. Under the condition that the flying wheel moment is unchanged, the thickness increase of the flying wheel and the diameter decrease of the flying wheel are also beneficial to the uniform distribution of stress, and improve bearing capacity. The utility model is strong in the capability of bearing alternating load, good in fatigue resistance performance, long in life-span, simple in structure and easy to process, which is applicable to the transmission device of metallurgy rolling mill.
Description
Technical field
The utility model relates to metallurgical rolling mill flywheel, belongs to the flywheel technology field.
Background technique
The flywheel structure center of being generally is the wheel hub that has axis hole, is connected as a single entity by some spokes between wheel hub and the flywheel.In " middle-size and small-size rolling machinery design and calculating " (metallurgical industry publishing house, 1979), disclose a kind of disc type casting flywheel, its structure is seen Fig. 2.The portion size of this flywheel closes, flywheel thickness B=(0.11～0.15) D, spoke thickness C=(0.3～0.34) B, spoke thickness has only 1/3 of flywheel thickness, varied in thickness gradient between spoke and the wheel hub is big, and the connection part of spoke and wheel hub becomes the sensitizing range that stress is concentrated, during the excessive or load alternate of flywheel load, crackle or fracture easily take place in this sensitizing range, and this kind situation is particularly outstanding when metallurgical rolling mill uses.In the rolling mill transmission system, flywheel is an interference fit with cooperating of transmission shaft, generally adopts hot charging by technological requirement, and the spoke temperature rise speed is faster than wheel hub during hot charging, spoke and wheel hub joint produce big tensile stress, and these tensile stresss become brings out the reason that crackle produces and expands.During steel rolling is produced, each steel rolling passage flywheel energy increase and decrease once, it is the fatigue stress circulation primary, the existing structure flywheel is in this kind working condition uses, spoke and wheel hub joint are prone to crackle, even fracture, once had a lot of rolling mill flywheels be in operation fracture, cause main motor and retarder to scrap even fatal crass's report, have flywheel structure now and improve so tackle.
Summary of the invention
It is even that problem to be solved in the utility model provides a kind of stress distribution, safe and reliable rolling mill flywheel.
Technical solution of the present utility model is;
A kind of rolling mill flywheel, it comprises wheel hub, spoke, wheel rim, and its improvement is that described spoke is the plane tabular structure of annular, and its thickness C is 1～0.8 with the ratio of flywheel thickness.
Above-mentioned rolling mill flywheel, described spoke thickness C is 1 with the ratio of flywheel thickness B.
Above-mentioned rolling mill flywheel, described flywheel thickness B is 0.15～0.25 with the ratio of flywheel diameter D.
The utility model adopts planar annular plate structure spoke, and makes spoke thickness near flywheel thickness, the whole structure in the form of annular discs of flywheel, but its planar annular disk forging molding.Compare with flywheel structure with existing rolling mill, the varied in thickness gradient of spoke and wheel hub joint is little, so eliminated the structural imperfection that fracture was concentrated, easily cracked to joint stress, under the constant situation of moment of flywheel, increase flywheel thickness, reducing flywheel diameter also helps stress and evenly distributes, and the raising bearing capacity, the utility model carrying stress alternation ability is strong, anti-fatigue performance good, long service life, simple in structure, is easy to processing.The utility model is suitable for using on metallurgical rolling mill transmission device.
Description of drawings
Fig. 1 is the utility model example structure schematic representation;
Fig. 2 is existing flywheel structure schematic representation.
Embodiment
Consult Fig. 1, in the illustrated embodiment, spoke is a complete circle, be connected as a single entity with wheel hub and flywheel, be the integrally-built disk of forging molding, the disk both sides are the plane, and the spoke thickness C equates with the flywheel thickness B, there is not transition steps between spoke and the wheel hub, unstressed concentrated area, during hot charging, the inhomogeneous tensile stress that causes of temperature rising between no spoke and the wheel hub, so the structure flywheel stress distribution is even, and is safe and reliable.
Still consult Fig. 1, with regard to flywheel, its quality is big more, energy stored is big more, and under equal conditions, flywheel diameter is big, and running torque is big.Existing rolling mill flywheel, flywheel thickness is generally B=(0.11～0.15) D with the ratio of flywheel diameter, in the present embodiment, the flywheel thickness B has broken through this restriction with the ratio of flywheel diameter D, adopts 0.155～0.25, promptly dwindle flywheel diameter, increase flywheel thickness, and the spoke thickness C is equaled the flywheel thickness B, this physical dimension flywheel helps the even distribution of stress under the equal quality condition, temperature rise evenly and be consistent can make flywheel have more safe handling when helping to adopt hot-mounting process.
The suitable Forging Technology that adopts of the utility model flywheel is made, and Forging Technology does not have defectives such as casting slag inclusion and hole, can prevent the crackle that casting defect produces.
Claims (3)
1. rolling mill flywheel, it comprises wheel hub, spoke, wheel rim, it is characterized in that, and described spoke is the plane tabular structure of ring-type, and its thickness C is 1～0.8 with the ratio of flywheel thickness B.
2. rolling mill flywheel according to claim 1 is characterized in that, described spoke thickness C is 1 with the ratio of flywheel thickness B.
3. rolling mill flywheel according to claim 1 and 2 is characterized in that, described flywheel thickness B is 0.155～0.25 with the ratio of flywheel outer diameter D.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01262151 CN2499635Y (en) | 2001-10-11 | 2001-10-11 | Flying wheel for rolling mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01262151 CN2499635Y (en) | 2001-10-11 | 2001-10-11 | Flying wheel for rolling mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2499635Y true CN2499635Y (en) | 2002-07-10 |
Family
ID=33669942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01262151 Expired - Fee Related CN2499635Y (en) | 2001-10-11 | 2001-10-11 | Flying wheel for rolling mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2499635Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103542036B (en) * | 2013-08-18 | 2015-11-25 | 中广核工程有限公司 | Coming away type nuclear power station main pump flywheel |
-
2001
- 2001-10-11 CN CN 01262151 patent/CN2499635Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103542036B (en) * | 2013-08-18 | 2015-11-25 | 中广核工程有限公司 | Coming away type nuclear power station main pump flywheel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |