CN2589942Y - Novel high-precision bead shafting - Google Patents
Novel high-precision bead shafting Download PDFInfo
- Publication number
- CN2589942Y CN2589942Y CN 02274683 CN02274683U CN2589942Y CN 2589942 Y CN2589942 Y CN 2589942Y CN 02274683 CN02274683 CN 02274683 CN 02274683 U CN02274683 U CN 02274683U CN 2589942 Y CN2589942 Y CN 2589942Y
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- CN
- China
- Prior art keywords
- main shaft
- shafting
- motor
- novel high
- seat
- 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
The utility model relates to a novel high-precision dense bead shafting. The rotation of an existing dense bead shafting is in an indirect drive mode. Because the rotary speed of a motor is higher, and the working speed of a main shaft is relatively lower, a speed reducing mechanism needs adding to the existing dense bead shafting. As a result, the structure of the apparatus becomes complicated, and the spatial volume is increased. The measuring request to a load workpiece from an instrument can not be satisfied. The utility model comprises a motor 3, wherein, the motor is arranged on a seat sleeve 4, the seat sleeve 4 is provided with a shaft sleeve 13, a dense bead bearing 36 is arranged between the main shaft 15 and the shaft sleeve 4. The product can be used as a shafting of a precise main shaft of measuring instruments.
Description
Technical field: the utility model relates to the novel high-precision dense ball bearing shafting that uses in a kind of surveying instrument.
Background technology: the rotation of existing dense ball bearing shafting is the indirect drive mode, and as 3001B type universal gear measuring machine axle system, the moment of torsion of motor is delivered to through cog belt and is installed in the belt wheel that axle is fastened, and belt wheel drives main axis rotation.Because rotating speed of motor is higher, and the working speed of main shaft is relatively low, therefore needing increases reducing gear, so just makes apparatus structure become complicated, and spatial volume increases.Simultaneously, the pulling force of cog belt makes axle system bear bigger radial load, does not also just satisfy the measurement requirement of instrument to the load workpiece.
Summary of the invention: the purpose of this utility model provides a kind of novel high-precision dense ball bearing shafting, improves load-bearing capacity and precision.
Above-mentioned purpose realizes by following technical scheme:
The novel high-precision dense ball bearing shafting, its composition comprises: motor, described motor is installed on the cover for seat, and main shaft and axle sleeve thereof are housed on the described cover for seat, between main shaft and the described axle sleeve sealed bead bearing is housed.
Above-mentioned novel high-precision dense ball bearing shafting, described sealed bead bearing are annular arrangement and arrange by group vertically.
This technical scheme has following beneficial effect:
This product since main shaft end face, periphery adopt the close pearl structure of solid matter steel ball and structure that motor coaxle drives make this cording have precision height, load-bearing capacity big, do not have radially advantages such as plus load, wearing and tearing are little, compact conformation.
2. the top oblique circle of this product is beated and is not more than 0.001mm, and the axial load that axle system bears can reach 200kg, can satisfy the requirement of instrument to big load workpiece calibration fully.
Accompanying drawing 1 is the structural representation of this product.Accompanying drawing 2 is vertical views of accompanying drawing 1.
Further specify below in conjunction with accompanying drawing:
Embodiment 1: the novel high-precision dense ball bearing shafting, its composition comprises: motor 3, described motor is installed on the cover for seat 4, on the described cover for seat 4 axle sleeve 13 is housed, on the described axle sleeve 13 main shaft 15 is housed, pedestal 20 is housed on the described main shaft, is equipped with toply 18 on the described pedestal 20, between described main shaft 15 and the described axle sleeve 4 sealed bead bearing 36 is housed.
Embodiment 2: the novel high-precision dense ball bearing shafting, described sealed bead bearing 10 is for annular arrangement and vertically by the group arrangement.When described motor 3 was worked, its rotator seat 6 drove described main shaft 15 and rotates, and described pedestal 20, top 18 also rotates simultaneously.The assembling process of axle system is as follows: at first back-up ring 14, back-up ring 16, close pearl 21 are installed in described axle sleeve 13 upper surfaces, reinstall described main shaft 15, then back-up ring 22, close pearl 23, back-up ring 24, back-up ring 25 are contained on the described main shaft 15 successively from following, the magnitude of interference that guarantees the described close pearl 23 between described axle sleeve 13 and the described main shaft 15 is 0.003～0.006mm.Then, in order holder 27, following retainer 28 and close pearl 26 (these three are assembled into parts earlier), thrust pad 29, disk spring 30, nut 32 are contained in the bottom of described main shaft 15.Rotate described nut 32, compress, and described main shaft 15 is tightened screw 31 can rotate flexibly the time between described axle sleeve 13 when the effect by described disk spring 30 and described thrust pad 29 makes the shaft shoulder of described main shaft 15 and described close pearl 21.Screw 9 can avoid described thrust pad 29 to rotate in moving process.With screw 12 described axle sleeve 13 is fixed on the cover for seat on 10, described rotator seat 6 is connected the bottom of described main shaft 15 with screw 7, screw 5 is fixed the described rotator seat 6 and the rotor portion of described motor 3, with screw 8 described motor cover for seat 4 is installed together with described cover for seat 10.Behind the reconditioning cushion cover 33, the stator seat 35 and the stationary part of described motor 3 are fixed with screw 2; Screw 34 is steady with described stator seat 35 and described motor cover for seat 4.With described cover for seat 10 axle of putting into instrument seat 1 of slinging is the hole, screw 11 tightly.At last, use screw 19 with on the described pedestal 20.
Claims (2)
1. novel high-precision dense ball bearing shafting, its composition comprises: motor is characterized in that: described motor is installed on the cover for seat, and main shaft and axle sleeve thereof are housed on the described cover for seat, between described main shaft and the described axle sleeve sealed bead bearing is housed.
2. novel high-precision dense ball bearing shafting according to claim 1 is characterized in that: described sealed bead bearing is annular arrangement and arranges by group vertically.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02274683 CN2589942Y (en) | 2002-08-07 | 2002-08-07 | Novel high-precision bead shafting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02274683 CN2589942Y (en) | 2002-08-07 | 2002-08-07 | Novel high-precision bead shafting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2589942Y true CN2589942Y (en) | 2003-12-03 |
Family
ID=33738900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02274683 Expired - Fee Related CN2589942Y (en) | 2002-08-07 | 2002-08-07 | Novel high-precision bead shafting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2589942Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109356999A (en) * | 2018-12-12 | 2019-02-19 | 中核新科（天津） 精密机械制造有限公司 | The close roller shafting of retarder high precision overloading |
| CN109356998A (en) * | 2018-12-12 | 2019-02-19 | 中核新科（天津） 精密机械制造有限公司 | The close roller shafting of retarder heavy duty |
| CN109386590A (en) * | 2018-12-12 | 2019-02-26 | 中核新科（天津） 精密机械制造有限公司 | Retarder high precision dense bead shafting |
-
2002
- 2002-08-07 CN CN 02274683 patent/CN2589942Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109356999A (en) * | 2018-12-12 | 2019-02-19 | 中核新科（天津） 精密机械制造有限公司 | The close roller shafting of retarder high precision overloading |
| CN109356998A (en) * | 2018-12-12 | 2019-02-19 | 中核新科（天津） 精密机械制造有限公司 | The close roller shafting of retarder heavy duty |
| CN109386590A (en) * | 2018-12-12 | 2019-02-26 | 中核新科（天津） 精密机械制造有限公司 | Retarder high precision dense bead shafting |
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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 |