CN2363832Y - Transmission for sander - Google Patents
Transmission for sander Download PDFInfo
- Publication number
- CN2363832Y CN2363832Y CN 99225795 CN99225795U CN2363832Y CN 2363832 Y CN2363832 Y CN 2363832Y CN 99225795 CN99225795 CN 99225795 CN 99225795 U CN99225795 U CN 99225795U CN 2363832 Y CN2363832 Y CN 2363832Y
- Authority
- CN
- China
- Prior art keywords
- gear
- sander
- output shaft
- utility
- fixed
- 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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- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The utility model discloses a transmission device for sanders, which comprises an output shaft of a motor, a transmission shaft connected with the output shaft and an eccentric mechanism connected the transmission shaft. The output shaft is provided with an outer gear, the outer gear extends into an inner gear which is fixed in a machine body, and a plurality of planetary gears are allocated between the outer gear and the inner gear. A rotary table which is fixed with the transmission shaft together is arranged under the planetary gear, the rotary table is fixed with a plurality of small shafts, and the small shafts are inserted into shaft holes on the planetary gears. The utility model improves an existing driving device, so the utility model not only can reduce the volume of the machine body of a sander, but also can increase the work efficiency of the sander.
Description
The utility model relates to a kind of electric tool.
In the prior art, the transmission device of sander provides power by motor, and the output shaft of motor is given power transmission shaft with transmission of power after slowing down by a pair of bevel gear, and it is reciprocating to drive nog plate by power transmission shaft by eccentric stiffener again.The advantage of this kind transfer mode is, and is simple in structure, but its efficient is low, volume is big, and for the electric tool that requires small-sized efficient, these shortcomings are very fatal.
The purpose of this utility model is: a kind of transmission device of sander is provided, and it improves existing transmission device, not only can dwindle the volume of sander body, can also improve the operating efficiency of sander.
The technical solution of the utility model is: a kind of transmission device of sander, comprise the output shaft of motor, the power transmission shaft that is connected with output shaft, the eccentric stiffener that is connected with power transmission shaft, described output shaft is provided with external gear, external gear stretches in the internal gear that is fixed in the body, be combined with some planetary gears between external gear and the internal gear, the rotating disk that is fixed together with power transmission shaft is arranged below the planetary gear, be fixed with some little axles on the rotating disk, in the axis hole on the little axle insertion planetary gear.
The further technical scheme of the utility model is: a kind of transmission device of sander, comprise the output shaft of motor, the power transmission shaft that is connected with output shaft, the eccentric stiffener that is connected with power transmission shaft, described output shaft is provided with external gear, external gear stretches in the internal gear that is fixed in the body, be combined with some planetary gears between external gear and the internal gear, the rotating disk that is fixed together with power transmission shaft is arranged below the planetary gear, be fixed with some little axles on the rotating disk, in the axis hole on the little axle insertion planetary gear; Described planetary gear and little axle respectively have three, are distributed on the circumference of rotating disk.
The utility model has the advantages that:
1. the utility model replaces original bevel gear reducing gear with planetary gear reducing mechanism, can dwindle the volume of sander body, meets the development trend of electric tool miniaturization.
2. because the torque ratio that planetary gears transmits is bigger, therefore, under the certain prerequisite of the needed moment of torsion of sander, what the motor that the utility model adopted can be than prior art is littler.
3. therefore the efficient of the planetary gear reducing mechanism that the utility model adopted, under the situation of same workload, can save use cost than higher.
The utility model will be further described below in conjunction with drawings and Examples;
Fig. 1 is a structural representation of the present utility model;
Wherein: 1 motor; 2 output shafts; 3 power transmission shafts; 4 eccentric stiffeners; 5 external gears; 6 bodies; 7 internal gears; 8 gears; 9 rotating disks; 10 little axles; 11 axis holes.
Embodiment: as shown in the figure, a kind of transmission device of sander, the output shaft [2] that comprises motor [1], the power transmission shaft [3] that is connected with output shaft [2], the eccentric stiffener [4] that is connected with power transmission shaft [3], described output shaft [2] is provided with external gear [5], external gear [5] stretches in the internal gear [7] that is fixed in the body [6], be combined with some planetary gears [8] between external gear [5] and the internal gear [7], the rotating disk [9] that is fixed together with power transmission shaft [3] is arranged below the planetary gear [8], be fixed with some little axles [10] on the rotating disk [9], in the axis hole [11] on little axle [10] the insertion planetary gear [8]; Described planetary gear [8] and little axle [10] respectively have three, are distributed on the circumference of rotating disk [9]; The utility model replaces original bevel gear reducing gear with planetary gear reducing mechanism, can dwindle the volume of sander body [6], meets the development trend of electric tool miniaturization; Because the torque ratio that planetary gears transmits is bigger, therefore, under the certain prerequisite of the needed moment of torsion of sander, what the motor that the utility model adopted [1] can be than prior art is littler; Therefore the efficient of the planetary gear reducing mechanism that the utility model adopted, under the situation of same workload, can save use cost than higher.
Claims (2)
1. the transmission device of a sander, the output shaft [2] that comprises motor [1], the power transmission shaft [3] that is connected with output shaft [2], the eccentric stiffener [4] that is connected with power transmission shaft [3], it is characterized in that: described output shaft [2] is provided with external gear [5], external gear [5] stretches in the internal gear [7] that is fixed in the body [6], be combined with some planetary gears [8] between external gear [5] and the internal gear [7], the rotating disk [9] that is fixed together with power transmission shaft [3] is arranged below the planetary gear [8], be fixed with some little axles [10] on the rotating disk [9], in the axis hole [11] on little axle [10] the insertion planetary gear [8].
2. the transmission device of sander according to claim 1 is characterized in that: described planetary gear [8] and little axle [10] respectively have three, are distributed on the circumference of rotating disk [9].
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99225795 CN2363832Y (en) | 1999-02-13 | 1999-02-13 | Transmission for sander |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99225795 CN2363832Y (en) | 1999-02-13 | 1999-02-13 | Transmission for sander |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2363832Y true CN2363832Y (en) | 2000-02-16 |
Family
ID=34015600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99225795 Expired - Fee Related CN2363832Y (en) | 1999-02-13 | 1999-02-13 | Transmission for sander |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2363832Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103286689A (en) * | 2013-05-30 | 2013-09-11 | 常州金智慧工具科技有限公司 | Eccentric polishing machine |
-
1999
- 1999-02-13 CN CN 99225795 patent/CN2363832Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103286689A (en) * | 2013-05-30 | 2013-09-11 | 常州金智慧工具科技有限公司 | Eccentric polishing machine |
| CN103286689B (en) * | 2013-05-30 | 2015-05-27 | 杨文武 | Eccentric polishing machine |
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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 |