CN2369829Y - Improved electric screw driver - Google Patents
Improved electric screw driver Download PDFInfo
- Publication number
- CN2369829Y CN2369829Y CN 99226396 CN99226396U CN2369829Y CN 2369829 Y CN2369829 Y CN 2369829Y CN 99226396 CN99226396 CN 99226396 CN 99226396 U CN99226396 U CN 99226396U CN 2369829 Y CN2369829 Y CN 2369829Y
- Authority
- CN
- China
- Prior art keywords
- output shaft
- screw driver
- electric screw
- housing
- shaft sleeve
- 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 an improved electric screw driver, which comprises a housing 8, a motor, a gear mechanism, an output shaft 7 and an output shaft sleeve 1; the motor, the gear mechanism, the output shaft 7 and the output shaft sleeve 1 are installed in the housing. The tail part of the output shaft sleeve 1 is provided with a single thrust bearing 6 supporter; a supporting mechanism is also arranged between the head part of the output shaft sleeve 1 and the head part of the housing 4; the supporting mechanism can be a simple rolling ball 2, and can also be a bearing 2' or a limit ring 2'. Both ends of the output shaft sleeve of the utility model are provided with supporters; therefore, with firm positioning, axial looseness can not be caused; when in use, jumping phenomenon can not occur; simultaneously, the assembling requirement of the output shaft sleeve and the output shaft is lowered and the assembling process becomes convenient.
Description
The utility model relates to a kind of electric screw driver.
Electric screw driver generally is used for the assembling line of factory, generally comprise housing and be installed on the interior motor of housing, gear mechanism, output shaft and axle sleeve thereof, tool heads is promptly inserted solid on output sleeve, in existing electric screw driver, unlikely generation radially reaches axial becoming flexible when rotating for the assurance output shaft, alignment pin and output shaft that output sleeve and output shaft must close-fitting merga pass one run through fix, the output sleeve root is supported by a single thrust bearing simultaneously, yet there is such defective in so single-ended location structure: during screwdriver work, because the size of the reaction force of workpiece and the uncertainty of direction, having a radial component puts on the output shaft, make output shaft produce flexural deformation, cause output sleeve to produce circular runout, cause the tool heads running that is installed on the output sleeve unstable, both influenced operating efficiency, influence service life again, and being connected between such structural requirement output shaft and the output sleeve must be closely, thereby be not easy to assembling.
The purpose of this utility model provides a kind of output sleeve location electric screw driver firm, easy to assembly with regard to being at the present situation of above-mentioned prior art.
The purpose of this utility model is achieved in that electric screw driver comprises housing and is installed on housing interior motor, gear mechanism, output shaft and output sleeve, the afterbody of output sleeve has single thrust bearing supporting, it is characterized in that also being provided with supporting device between described output sleeve head and the housing head; This supporting device can be simple ball, also can be a bearing, or a spacing ring.
Compared with prior art, output sleeve of the present utility model all has supporting at two ends end to end, thereby the location is firm, can not cause axial becoming flexible, no longer have jumping phenomena in use, the matching requirements to output sleeve and output shaft simultaneously decrease, and have therefore also made things convenient for assembling.
Description of drawings:
Fig. 1 is the structural representation (broken section) of the utility model embodiment.
Fig. 2 is the A-A cutaway view of Fig. 1.
Fig. 3 is the structural representation (part) of another embodiment of the utility model.
Fig. 4 is the structural representation (part) of another embodiment of the utility model.
Embodiment is described in further detail the utility model below in conjunction with accompanying drawing.
As shown in Figure 1 and Figure 2, electric screw driver comprises housing 8 and is installed on housing interior motor, gear mechanism (not shown), output shaft 7 and output sleeve 1, the afterbody of output sleeve 1 fixes with output shaft 7 by an alignment pin that runs through 5 and is supported by a single thrust bearing 6 at its root, one circle ball 2 then is set between the head of output sleeve 1 and housing head 4, both make output sleeve 1 head supported, do not influenced its rotation again; For ball 2 is located better, also can one flange 3 be set at output sleeve 1 correspondence position.
Fig. 3, Figure 4 shows that the supporting device of other two kinds of output sleeve heads, respectively with bearing 2 ' and spacing ring 2 " substitute above-mentioned ball 2, the former better effects if but cost is slightly high comparatively speaking, latter's cost is lower but effect is slightly poor;
Invention main points of the present utility model are except having the supporting at the output sleeve afterbody; at its head supporting device is set also; not necessarily be confined to several shown in the accompanying drawing embodiment as for the concrete structure of supporting device; can be other various rational structure, all within protection domain of the present utility model.
Claims (5)
1. modified electric screw driver, comprise housing and be installed on housing interior motor, gear mechanism, output shaft and output sleeve, the afterbody of output sleeve has single thrust bearing supporting, it is characterized in that also being provided with supporting device between described output sleeve head and the housing head.
2. electric screw driver as claimed in claim 1 is characterized in that described supporting device is output sleeve head and the spacing ball of housing head by a circle.
3. electric screw driver as claimed in claim 1 is characterized in that described supporting device is a bearing.
4. electric screw driver as claimed in claim 1 is characterized in that described supporting device is a spacing ring.
5. as the described electric screw driver of arbitrary claim in the claim 1 to 4, it is characterized in that being provided with a flange, make described supporting device spacing better at the position of the corresponding described supporting device of described output sleeve head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99226396 CN2369829Y (en) | 1999-04-22 | 1999-04-22 | Improved electric screw driver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99226396 CN2369829Y (en) | 1999-04-22 | 1999-04-22 | Improved electric screw driver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2369829Y true CN2369829Y (en) | 2000-03-22 |
Family
ID=34016094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99226396 Expired - Fee Related CN2369829Y (en) | 1999-04-22 | 1999-04-22 | Improved electric screw driver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2369829Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108838930A (en) * | 2018-07-02 | 2018-11-20 | 蒙城信和汽车有限公司 | Studgun is used in a kind of production of automotive seat |
-
1999
- 1999-04-22 CN CN 99226396 patent/CN2369829Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108838930A (en) * | 2018-07-02 | 2018-11-20 | 蒙城信和汽车有限公司 | Studgun is used in a kind of production of automotive seat |
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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 |