CN2860732Y - Grinding wheel fixing chuck for steel rail polishing - Google Patents
Grinding wheel fixing chuck for steel rail polishing Download PDFInfo
- Publication number
- CN2860732Y CN2860732Y CN 200620068372 CN200620068372U CN2860732Y CN 2860732 Y CN2860732 Y CN 2860732Y CN 200620068372 CN200620068372 CN 200620068372 CN 200620068372 U CN200620068372 U CN 200620068372U CN 2860732 Y CN2860732 Y CN 2860732Y
- Authority
- CN
- China
- Prior art keywords
- chuck
- polishing
- emery wheel
- grinding wheel
- steel rail
- 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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- Grinding Of Cylindrical And Plane Surfaces (AREA)
Abstract
The utility model discloses a chuck, especially a chuck for grinding wheel installation, which is characterized in that the center hole of the chuck belongs to taper and three installation bolt holes are uniformly distributed on the chuck. For improving the installation precision of the grinding wheel, at least three positioning blocks should be set on the chuck. For improving the precision further, the positioning block should be set into the taper. As the center hole of the chuck pertains to taper, the grinding wheel will not flop axially and radially, which improves the working efficiency of grinding and reduces noises.
Description
Technical field: the utility model relates to a kind of chuck, relates in particular to a kind of emery wheel installation chuck.
Technical background: along with the fast development of World Economics, the ability of railway transportation constantly improves, rail undulatory wear and contact fatigue can occur in long-term the use, phenomenons such as serious meeting produces and scales off, cracking, the Chinese Railway rail finds that the earliest undulatory wear is greatly before and after nineteen sixty, can only adopt passive measure to substitute rail at that time, and so not only influence the ability of railway transportation, and increased the cost of railway transportation.First steel rail grinding train in the world made by Speno company from the sixties, rail is polished, with the undulatory wear of eliminating rail and the contact fatigue of controlling rail, prevent phenomenons such as the rail generation scales off, cracking, so not only improve the service life of rail, and can not influence the time and the cost of railway transportation.According to the purpose and the effect of steel rail grinding, steel rail grinding mainly is divided into corrective polishing, maintainability polishing, preventative polishing, rail is polished in advance and five types of asymmetric polishings of rail.During use, the polishing train drives workpiece polishing mechanism and advances on rail with a certain speed of travel, form the relative feed movement between grinding head and the rail, polishing motor direct-drive polishing emery wheel rotation on the workpiece polishing mechanism, and grinding head is applied certain pressure by hydraulic mechanism, realize exert pressure polishing and grinding, and the grinding head of this workpiece polishing mechanism can adjust, and polishes with each position of satisfying the rail surface profile to rail.The quality quality of emery wheel of wherein polishing directly influences the operating efficiency of workpiece polishing mechanism, the polishing parameter of polishing emery wheel mainly is subjected to the operation speed of travel of train and the influence of polishing pressure, speed is crossed the low rail scorch that easily causes, the too high steel rail grinding decrease in efficiency that easily causes of speed, the best operation speed of travel of China's rail is generally 3-7Km/h; Polishing pressure is big more, grinding efficiency is just high more, but pressure surpasses 2KN, to influence the polishing quality, the rail surface is prone to phenomenon such as turn blue, and simultaneously motor temperature is sharply risen, influence normal operation, if and be lower than 1.1KN, then grinding efficiency is too low, thus the polishing pressure generally between 1.1-2.0KN.At present, China's polishing polishing emery wheel that train adopted mainly is homemade plain wheel, emery wheel is sleeved on the main shaft of sander, fix with ring flange, carry out cylindricalo grinding, because 24 or 48 of the general employings of polishing train are worked simultaneously by the rotation of emery wheel, and emery wheel excircle dimension in use constantly dwindles, grinding speed and pressure to rail are difficult to control, so not only influence the operating efficiency of polishing, and can cause rail burn, crackle, emery wheel clogging.
Summary of the invention: the utility model purpose is to provide a kind of chuck for installing at polishing train use side facet wheel, adopt this new construction not only can improve the installation accuracy of emery wheel, emery wheel can not produced axially and circular runout, improve the operating efficiency of polishing, reduce noise.
The utility model is achieved in that steel rail grinding emery wheel chuck for installing, it is characterized in that: the centre bore of described chuck is taper, three the construction bolt holes that evenly distributed on described chuck in order to improve the installation accuracy of emery wheel, are provided with three locating pieces at least on described chuck.
The present invention compared with prior art has following advantage:
1. because the centre bore of described chuck is taper, emery wheel can not produced axially and circular runout, improve the operating efficiency of polishing, reduce noise.
2. owing to be provided with three locating pieces at least on the described chuck.Improve the installation accuracy of emery wheel, in order further to improve precision, described locating piece is set to taper.
Description of drawings: Fig. 1 is the structural representation of steel rail grinding described in the utility model with the emery wheel chuck for installing
1. rotating shaft 2. chucks 3. metallic matrixes 4. emery wheel bodies 5. screwed holes
6. locating hole 7. locating pieces 8. bolts hole 9. center mounting holes
The specific embodiment: steel rail grinding emery wheel chuck for installing, it is characterized in that: the center mounting hole 9 of described chuck is taper, three the construction bolt holes 8 that evenly distributed on described chuck 2 in order to improve the installation accuracy of emery wheel, are provided with three locating pieces 7 at least on described chuck 2.In order further to improve precision, described locating piece 7 is set to taper.Chuck 2 connects in rotating shaft 1 by center mounting hole 9 during installation, because the centre bore of described chuck is taper, emery wheel can not produced axially and circular runout, improves the operating efficiency of polishing, reduces noise.
Claims (3)
1. steel rail grinding emery wheel chuck for installing is characterized in that: the center mounting hole (9) of described chuck (2) is taper, and three construction bolt holes (8) have evenly distributed on described chuck (2).
2. steel rail grinding emery wheel chuck for installing according to claim 1 is characterized in that: be provided with three locating pieces (7) on described chuck (2) at least.
3. steel rail grinding emery wheel chuck for installing according to claim 2 is characterized in that: described locating piece (7) is taper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620068372 CN2860732Y (en) | 2006-01-11 | 2006-01-11 | Grinding wheel fixing chuck for steel rail polishing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620068372 CN2860732Y (en) | 2006-01-11 | 2006-01-11 | Grinding wheel fixing chuck for steel rail polishing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2860732Y true CN2860732Y (en) | 2007-01-24 |
Family
ID=37658360
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620068372 Expired - Fee Related CN2860732Y (en) | 2006-01-11 | 2006-01-11 | Grinding wheel fixing chuck for steel rail polishing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2860732Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102922334A (en) * | 2012-11-20 | 2013-02-13 | 昆山市大金机械设备厂 | Tool holder |
| CN105710748A (en) * | 2016-03-21 | 2016-06-29 | 浙江亚恩材料工程技术有限公司 | Accurate-grinding device for valve plate |
| CN108871836A (en) * | 2018-09-14 | 2018-11-23 | 西南交通大学 | A kind of multi-functional steel rail grinding experimental rig |
| CN113089397A (en) * | 2021-04-13 | 2021-07-09 | 中铁隆昌铁路器材有限公司 | Quick edging rail-unfired steel rail grinding wheel |
-
2006
- 2006-01-11 CN CN 200620068372 patent/CN2860732Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102922334A (en) * | 2012-11-20 | 2013-02-13 | 昆山市大金机械设备厂 | Tool holder |
| CN105710748A (en) * | 2016-03-21 | 2016-06-29 | 浙江亚恩材料工程技术有限公司 | Accurate-grinding device for valve plate |
| CN108871836A (en) * | 2018-09-14 | 2018-11-23 | 西南交通大学 | A kind of multi-functional steel rail grinding experimental rig |
| CN113089397A (en) * | 2021-04-13 | 2021-07-09 | 中铁隆昌铁路器材有限公司 | Quick edging rail-unfired steel rail grinding wheel |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070124 Termination date: 20140111 |