CN201483356U - Main shaft structure grinder wheelhead - Google Patents
Main shaft structure grinder wheelhead Download PDFInfo
- Publication number
- CN201483356U CN201483356U CN2009201701408U CN200920170140U CN201483356U CN 201483356 U CN201483356 U CN 201483356U CN 2009201701408 U CN2009201701408 U CN 2009201701408U CN 200920170140 U CN200920170140 U CN 200920170140U CN 201483356 U CN201483356 U CN 201483356U
- Authority
- CN
- China
- Prior art keywords
- main shaft
- bearing
- wheelhead
- grinding
- angular contact
- 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
Abstract
The utility model discloses a main shaft structure grinder wheelhead, which comprises a main shaft and a bearing structure arranged at the end part of the main shaft, wherein a grinding wheel is arranged at the front shaft end of the main shaft, high-rigidity fixed supporting structures are arranged at both the front and back ends of the main shaft of the wheelhead, cylindrical rollers are arranged on both the front and back end supporting structures thereof, an angular contact bearing is arranged in a back-to-back position therewith, a round nut is arranged on the outer ring of the bearing to exert preload force, and a gasket is arranged in the position of the angular contact bearing. The utility model has the advantages that the rotating precision of the main shaft is high, the grinding ability is improved, the processing range of charging roller is expanded, the supporting rigidity and bearing ability of the main shaft structure are improved, and therefore the main shaft can move steadily in a high rotating state without making any noise or vibrating.
Description
Technical field
The utility model relates to parts in a kind of grinder, relates in particular to a kind of grinder grinding spindle structure.
Background technology
The printer charging roller is a vitals in the grinder with grinder emery wheel bistrique, and the reasonability of grinding spindle structural design is one of principal element that directly influences its function; Existing grinding spindle structure rotating accuracy is low, supporting rigidity is poor, a little less than the bearing capacity, can't realize high-speed grinding, (being that grinding speed is greater than 35m/s-50m/s).Grinding wheel head structure adopts sliding bearing mostly, rotating accuracy is low, main shaft temperature rise under the situation of at a high speed rotation is higher, grinding speed is in 35m/s, main shaft can not form dynamic pressure between bearing shell and axle journal oil film wedge under the situation of low speed rotation, it is little therefore to process the charging roller variety range; Owing to can not adopt high-rate cutting technology during the grinding wheel head structure grinding, so technical standards such as the dimensional accuracy of charging roller, surface roughness play pendulum in process of production.
The utility model content
At above defective, the purpose of this utility model provides a kind of grinder grinding spindle structure that has high rigid structure, spindle rotation accuracy height, improved grinding capacity, to reach the purpose of main shaft held stationary operation under the situation of rotation at a high speed.
For achieving the above object, the utility model is achieved through the following technical solutions:
A kind of grinder grinding spindle structure, the bearing arrangement that comprises main shaft and be arranged at spindle nose, the emery wheel body is positioned at the preceding axle head of main shaft, the grinding spindle rear and front end is equipped with height and rigidly fixes supporting construction, its forward and backward two end supports structure is provided with the taper hole Biserial cylindrical roller bearing, reach the angular contact bearing by " back-to-back " installation form, bearing outer ring is provided with round nut it is applied preload power, and described angular contact bearing position is provided with packing ring.
The utility model beneficial effect is: the spindle rotation accuracy height makes that main shaft is installed the tapering part circular runout 0.005 that the back contacts with grinding wheel stand, axial runout 0.01 after testing; Existing main axle structure can make grinding speed bring up to 50m/s by original 35m/s, has improved grinding capacity, lays the foundation for implement high-rate cutting technology on grinder; Simultaneously on this main shaft, can realize infinitely variable speeds,, enlarge the charging roller kind range of work even the rolling bearing play still is in perfect condition under extremely slow-revving situation; Rigidity of support, the bearing capacity of main axle structure are significantly improved than original structure, so main shaft all energy even runnings under the situation of rotation at a high speed, do not have the phenomenon of any noise, vibration; Because the enhancing of this main axle structure function, high-rate cutting technology has been adopted in grinding in process of production, not only makes the crudy stable accuracy lifting of charging roller but also has improved production efficiency.
Description of drawings
According to embodiment and accompanying drawing the utility model is described in further detail below.
Fig. 1 is the structural representation of the described grinder grinding spindle of the utility model embodiment structure.
Among the figure:
1, emery wheel body; 2, taper hole Biserial cylindrical roller bearing; 3, angular contact bearing; 4, round nut; 5, packing ring; 6, packing ring.
The specific embodiment
As shown in Figure 1, grinder grinding spindle structure described in the utility model, the every group of bearing arrangement that comprises main shaft and be arranged at spindle nose, emery wheel body 1 is positioned at the preceding axle head of main shaft, for improving the rotating speed of main shaft, strengthen infinite variable speed slewing range, sliding bearing is improved to when being provided with the special-purpose main shaft rolling bearing of P4 level carrying out structure; The grinding spindle rear and front end is equipped with height and rigidly fixes supporting construction, before it, back two end supports structure be provided be used for bearing radial force taper hole Biserial cylindrical roller bearing 2 to bear the grinding force of emery wheel, and 3 while of the angular contact bearing bearing radial force and the axial force of " back-to-back " installation form, two groups of bearing outer rings are provided with round nut 4 it are applied preload power, described angular contact bearing 3 positions are provided with the packing ring 6 of adjusting usefulness in the time of can installing for preload, spindle nose is provided with to be adjusted packing ring 5 and by round nut 4 it is carried out the preload adjustment, preceding, the structural design that the back is supported has been strengthened the integral rigidity of main shaft.Adopt the structure of high rigidity by main shaft, make its rolling bearing can carry out the preload adjustment respectively to the back and front supporting end, make its end-play adjust to optimum state, thereby make grinding wheel spindle realize rotating accuracy height, the specification requirement that supporting rigidity is good, bearing capacity is strong.
Claims (2)
1. grinder grinding spindle structure, the bearing arrangement that comprises main shaft and be arranged at spindle nose, the emery wheel body is positioned at the preceding axle head of main shaft, it is characterized in that: the main shaft rear and front end is equipped with height and rigidly fixes supporting construction, its forward and backward two end supports structure is provided with cylinder roller bearing, and the angular contact bearing that passes through back-to-back installation form, two groups of bearing outer rings are provided with round nut.
2. grinder grinding spindle structure according to claim 1 is characterized in that: described angular contact bearing position is provided with the adjustment packing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201701408U CN201483356U (en) | 2009-08-14 | 2009-08-14 | Main shaft structure grinder wheelhead |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201701408U CN201483356U (en) | 2009-08-14 | 2009-08-14 | Main shaft structure grinder wheelhead |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201483356U true CN201483356U (en) | 2010-05-26 |
Family
ID=42422253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201701408U Expired - Fee Related CN201483356U (en) | 2009-08-14 | 2009-08-14 | Main shaft structure grinder wheelhead |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201483356U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102275105A (en) * | 2011-08-09 | 2011-12-14 | 安徽省尚美精密机械科技有限公司 | Taper plug-in type spindle rotating device and processing equipment |
| CN103213052A (en) * | 2013-04-02 | 2013-07-24 | 黄山明明德轴承有限公司 | Inner-ring groove grinding machine grinding wheel spindle system for ball bearing |
| CN103567861A (en) * | 2012-07-23 | 2014-02-12 | 沈阳海默数控机床有限公司 | Vertical double-end-surface high accuracy grinding machine spindle |
| CN105108642A (en) * | 2015-09-21 | 2015-12-02 | 玉林市玉博机械有限公司 | Grinding head spindle structure |
| CN106670960A (en) * | 2015-11-06 | 2017-05-17 | 中国科学院沈阳计算技术研究所有限公司 | Grinding head structure of crawling grinding machine |
-
2009
- 2009-08-14 CN CN2009201701408U patent/CN201483356U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102275105A (en) * | 2011-08-09 | 2011-12-14 | 安徽省尚美精密机械科技有限公司 | Taper plug-in type spindle rotating device and processing equipment |
| CN103567861A (en) * | 2012-07-23 | 2014-02-12 | 沈阳海默数控机床有限公司 | Vertical double-end-surface high accuracy grinding machine spindle |
| CN103567861B (en) * | 2012-07-23 | 2016-06-08 | 沈阳海默数控机床有限公司 | Vertical grinding machine with double end faces high-precision grinder main shaft |
| CN103213052A (en) * | 2013-04-02 | 2013-07-24 | 黄山明明德轴承有限公司 | Inner-ring groove grinding machine grinding wheel spindle system for ball bearing |
| CN105108642A (en) * | 2015-09-21 | 2015-12-02 | 玉林市玉博机械有限公司 | Grinding head spindle structure |
| CN106670960A (en) * | 2015-11-06 | 2017-05-17 | 中国科学院沈阳计算技术研究所有限公司 | Grinding head structure of crawling grinding machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100526 Termination date: 20170814 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |