CN102240930A - Structure for grinding wheel spindle of large-size internal grinding machine - Google Patents
Structure for grinding wheel spindle of large-size internal grinding machine Download PDFInfo
- Publication number
- CN102240930A CN102240930A CN 201110159873 CN201110159873A CN102240930A CN 102240930 A CN102240930 A CN 102240930A CN 201110159873 CN201110159873 CN 201110159873 CN 201110159873 A CN201110159873 A CN 201110159873A CN 102240930 A CN102240930 A CN 102240930A
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- grinding wheel
- spindle
- main shaft
- wheel spindle
- grinding
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- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
Abstract
The invention relates to a structure for a grinding wheel spindle of a large-size internal grinding machine and belongs to the technical field of grinding machine manufacturing. The structure for the grinding wheel spindle of the large-size internal grinding machine is characterized in that a spindle is mounted on a grinding frame; a grinding wheel is fixed at one end of the spindle; the other end of the spindle is connected to a belt wheel through a shaft coupler and a rolling bearing; and the front and back sliding support walls of the spindle are in contact with front and back five sliding bearings by virtue of bolt adjustment. The structure of the grinding wheel spindle is used for overcoming the defects of low grinding wheel precision and high maintenance cost caused by the usage of the rolling bearing support, thereby prolonging the processing precision and service life of the spindle.
Description
Technical field
The present invention relates to a kind of large-scale internal grinder grinding wheel spindle structure, belong to grinding machine and make association area.
Background technology
The grinding wheel spindle of at present domestic internal grinder all adopts roller bearings, but the emery wheel precision of roller bearings is low, the maintenance cost height.Small-sized internal grinder also can only be used rolling bearing because of diameter of axle linear speed is very high, and to large-scale internal grinder, the main shaft linear speed can select for use sliding bearing to support when 5 meter per seconds are following.
Summary of the invention
Defective in view of the prior art existence, the purpose of this invention is to provide a kind of large-scale internal grinder grinding wheel spindle structure, this grinding wheel spindle structure has overcome by using the shortcoming that the emery wheel precision is low, maintenance cost is high that roller bearings caused, the machining accuracy and the service life of having improved main shaft.
The technical solution adopted for the present invention to solve the technical problems is: a kind of large-scale internal grinder grinding wheel spindle structure, main shaft is installed on the mill frame, one end of main shaft is fixed with emery wheel, the other end connects with belt pulley by shaft coupling, rolling bearing, and five Sliding bushes contacted with it before and after the front and back sliding support face of main shaft was regulated by screw.When motor rotates, will drive main shaft and rotate by belt pulley, rolling bearing main shaft, shaft coupling, form dynamic pressure oil film, the rotation of supports main shaft high-speed smooth between main shaft and bearing shell, process the high accuracy product.
Be provided with the thin oil lubricant oil pocket between rack sleeve and main shaft, fill the main shaft thin oil in the described lubricant reservoir.
The invention has the beneficial effects as follows: a kind of large-scale internal grinder grinding wheel spindle structure, main shaft is installed on the mill frame, one end of main shaft is fixed with emery wheel, the other end connects with belt pulley by shaft coupling, rolling bearing main shaft, and five Sliding bushes contacted with it before and after the front and back sliding support face of main shaft was regulated by screw.This grinding wheel spindle structure has overcome by using the shortcoming that the emery wheel precision is low, maintenance cost is high that roller bearings caused, the machining accuracy and the service life of having improved main shaft.
Description of drawings
Fig. 1 is a kind of structural representation of large-scale internal grinder grinding wheel spindle structure;
Fig. 2 is the profile of five Sliding bush installation places;
Reference numeral is as follows: 1, emery wheel, 2, main shaft, 3, the first five piece Sliding bush, 4, lubricating cavity, 5, back five Sliding bushes, 6, belt pulley, 7, rack sleeve.
The specific embodiment
A kind of large-scale internal grinder grinding wheel spindle structure, main shaft 2 is installed on the mill frame, one end of main shaft 2 is fixed with emery wheel 1, and the other end is installed belt pulley 6, and the front and back sliding support face of main shaft is regulated the first five piece Sliding bush 3 by screw and contacted with it with back five Sliding bushes 5.
2 on rack sleeve 7 and main shaft are provided with lubricating cavity 4, and filling thin oil in the described lubricating cavity 4 is No. 10 main shaft oil.
Claims (2)
1. one kind large-scale internal grinder grinding wheel spindle structure, main shaft (2) is installed on the mill frame, one end of main shaft (2) is fixed with emery wheel (1), the other end connects with belt pulley (6) by shaft coupling, rolling bearing, and it is characterized in that: the front and back sliding support face of main shaft is regulated the first five piece Sliding bush (3) by screw and contacted with it with back five Sliding bushes (5).
2. a kind of large-scale internal grinder grinding wheel spindle structure according to claim 1 is characterized in that: form lubricating cavity (4) between rack sleeve (7) and main shaft (2), fill thin oil in the described lubricating cavity (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110159873 CN102240930A (en) | 2011-06-15 | 2011-06-15 | Structure for grinding wheel spindle of large-size internal grinding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110159873 CN102240930A (en) | 2011-06-15 | 2011-06-15 | Structure for grinding wheel spindle of large-size internal grinding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102240930A true CN102240930A (en) | 2011-11-16 |
Family
ID=44959274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110159873 Pending CN102240930A (en) | 2011-06-15 | 2011-06-15 | Structure for grinding wheel spindle of large-size internal grinding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102240930A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103930230A (en) * | 2012-10-31 | 2014-07-16 | 日本精工株式会社 | Grinding spindle for thread grinder |
-
2011
- 2011-06-15 CN CN 201110159873 patent/CN102240930A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103930230A (en) * | 2012-10-31 | 2014-07-16 | 日本精工株式会社 | Grinding spindle for thread grinder |
| CN103930230B (en) * | 2012-10-31 | 2016-05-04 | 日本精工株式会社 | The grinding spindle of screw grinder |
| US9757809B2 (en) | 2012-10-31 | 2017-09-12 | Nsk Ltd. | Grinding spindle for screw grinder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20111116 |