CN202209039U - Sand mill - Google Patents
Sand mill Download PDFInfo
- Publication number
- CN202209039U CN202209039U CN2011203482667U CN201120348266U CN202209039U CN 202209039 U CN202209039 U CN 202209039U CN 2011203482667 U CN2011203482667 U CN 2011203482667U CN 201120348266 U CN201120348266 U CN 201120348266U CN 202209039 U CN202209039 U CN 202209039U
- Authority
- CN
- China
- Prior art keywords
- gear
- planetary gear
- sand mill
- support
- rotary disc
- 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 - Lifetime
Links
Landscapes
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Crushing And Grinding (AREA)
Abstract
The utility model provides a sand mill which has a more compact structure, a smaller size, a lighter weight, and more convenience in operation, is more suitable for relatively refined polishing constructions such as polishing a putty layer of a building wall surface and the like, and is mainly characterized in that the retarding mechanism of the sand mill adopts a planetary gear transmission structure; and the planetary gear transmission structure mainly comprises an internal annular gear, a sun gear, a planetary gear and a rotating disc bracket. Not only can a larger reduction gear ratio be guaranteed, but also an internally meshed gear pair can be applied reasonably. Under the condition that the same load is born, the contour size and the weight of the planetary gear transmission structure is about 1/5 to 1/2 of those of a common two-stage gear deceleration transmission mechanism, the torque of the planetary gear transmission structure is larger, and the transmission efficiency of the planetary gear transmission structure is higher, so that the sand mill has the characteristics of small size, light weight and higher transmission efficiency. Therefore, the sand mill has a more compact structure, a smaller size and a lighter weight, and provides convenience for the relatively refined polishing constructions such as polishing the putty layer of the building wall surface and the like.
Description
Technical field
The utility model relates to building operations technique with the apparatus field, relates in particular to the sand mill of meticulousr polishing construction such as a kind of building wall face putty layer that is specially adapted to polish.
Background technology
Sand mill be mainly used in to building material surface or building wall polish, polishing.Sand mill mainly by body, be fixedly mounted on motor in the body, the sanding disc and the interlock circuit that are driven by the output shaft of motor constitute, its designing requirement has characteristics such as power is big, in light weight, profile is small and exquisite, to guarantee efficiency of construction and handled easily.Sand mill adopts pot motor usually, and (maximum no load governed speed is generally 35000 ~ 40000r/min), to guarantee having bigger power output, satisfies its power designs requirement; But in meticulousr polishing constructions such as polishing building wall face putty layer; Require the working speed lower (the wall surface putty layer of for example polishing requires sanding disc rotational line speed about 1m/s) of sanding disc, therefore the bigger reducing gear of speed reducing ratio need be set between motor output shaft and sanding disc.The sand mill that is used for meticulousr polishing construction in the prior art normally increases the one-level gear again and constitutes the two-stage gear reduction on the basis of former single gear deceleration device, to improve speed reducing ratio; But such sand mill Heavy Weight, volume are big, manipulate very inconvenient.
The utility model content
To the above-mentioned deficiency that exists in the prior art; The purpose of the utility model is to provide a kind of structure the compact more sand mill that is applicable to meticulousr polishing construction such as polishing building wall face putty layer, makes it have the advantages that volume is less, weight is light, be convenient to operate.
For realizing above-mentioned purpose, the utility model has adopted following technological means:
A kind of sand mill comprises the motor that is fixedly mounted in the body, and passes through the sanding disc that reducing gear links to each other with the output shaft of motor; Said reducing gear mainly is made up of ring gear, central gear, planetary gear and support for rotary disc; Ring gear is fixedly mounted in the body; Central gear is fixedly mounted on the output shaft of motor coaxially and stretches into the central authorities of ring gear; Planetary gear for size identical two or three and along central gear circumferentially evenly distributed and arranged and be engaged on central gear and ring gear between; The rotating shaft of support for rotary disc and motor output shaft are at same axis, and each planetary gear is installed in rotation on the support for rotary disc; Also be fixedly connected with on the support for rotary disc and the sanding disc driving shaft of motor output shaft at same axis, said sanding disc is fixedly mounted on the sanding disc driving shaft.
Further, said ring gear and planetary gearratio are 2:4 ~ 5; The gearratio of said planetary gear and central gear is 1:4 ~ 6.
Further, said support for rotary disc is provided with the bolster identical with planetary gear quantity, and each planetary gear is equipped with in axis hole and the axis hole bearing is installed, and each planetary gear is installed in rotation on the bolster of support for rotary disc through the bearing in its axis hole.
Further, said support for rotary disc and sanding disc driving shaft are formed in one.
Further, the output shaft of said central gear and motor is one-body molded.
Than prior art, the utlity model has following beneficial effect:
The reducing gear of the utility model sand mill has adopted the planetary gear drive mechanism that mainly is made up of ring gear, central gear, planetary gear and support for rotary disc; Not only can guarantee bigger speed reducing ratio; Also reasonably use internal gear pair; Bearing under the identical load-up condition; The gabarite of planetary gear drive mechanism and weight are about 1/2 ~ 1/5 of common two-stage gear reduction transmission mechanism, and the moment of torsion of planetary gear drive mechanism is big, transmission efficiency is higher, makes it have the advantages that volume is little, in light weight, transmission efficiency is higher; Thereby the sand mill structure that can make the utility model is compact more, volume is littler and weight is lighter, is convenient to meticulousr polishing constructing operation.
Description of drawings
Fig. 1 is the structural representation of the utility model sand mill.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the technical scheme of the utility model is further described.
Referring to Fig. 1; The main composition of the sand mill of the utility model partly is the motor 1 that is fixedly mounted in the body; And the sanding disc 3 that links to each other with the output shaft 2 of motor 1 through reducing gear; But different with prior art is that the reducing gear of the utility model sand mill has adopted the planetary gear drive mechanism that mainly is made up of ring gear 4, central gear 5, planetary gear 6 and support for rotary disc 7; In the ability instance; Ring gear 4 is fixedly mounted in the body; The output shaft 2 of motor 1 provides further stable support by a seal deep groove ball bearing 10 that is fixedly mounted in the body, and central gear 5 is fixedly mounted on the output shaft 2 of motor 1 coaxially and stretches into the central authorities of ring gear 4; Planetary gear 6 for size identical two or three and along central gear 5 circumferentially evenly distributed and arranged and be engaged on central gear 5 and ring gear 4 between; The identical central gear 5 that makes of each planetary gear 6 sizes is coaxial with ring gear 4; Simultaneously each planetary gear 6 along central gear 5 circumferentially evenly distributed and arranged can guarantee the rotational stabilization of planetary gear drive mechanism to produce bigger shake when avoiding its rotation; The rotating shaft of support for rotary disc 7 and motor output shaft 2 are at same axis; Each planetary gear 6 is installed in rotation on that the concrete mounting means of present embodiment is on the support for rotary disc 7; Support for rotary disc 7 is installed in the body through two deep groove ball bearings 10,11; Make support for rotary disc 7 on the same axis of motor output shaft 2, to rotate; Support for rotary disc 7 is provided with the bolster 12 identical with planetary gear quantity, and each planetary gear 6 is equipped with bearing 13 is installed in axis hole and the axis hole simultaneously, and each planetary gear 6 is installed in rotation on the bolster 12 of support for rotary disc 7 through the bearing in its axis hole 13; Also be fixedly connected with on the support for rotary disc 7 and the sanding disc driving shaft 8 of motor output shaft 2 at same axis; Sanding disc 3 is fixedly mounted on the sanding disc driving shaft 8, and then the output shaft 2 of motor 1 can drive sanding disc 3 rotations through the planetary gear drive mechanism that mainly is made up of ring gear 4, central gear 5, planetary gear 6 and support for rotary disc 7.In the present embodiment, the number of teeth of central gear is 6, and the number of teeth of planetary gear is 28, and the number of teeth of ring gear is 62; Therefore, ring gear and planetary gearratio are 14:31, and the gearratio of planetary gear and central gear is 3:14, has reached higher speed reducing ratio.
Only as the preferred forms of the utility model, conduct is not to the concrete restriction of the utility model for the foregoing description.In fact; The rotatable mounting structure of planetary gear and support for rotary disc is not limited to the concrete mounting means described in the foregoing description; Those skilled in the art can design various rotatable mounting structures by prior art; Just the concrete mounting means of the foregoing description is simple, cost is lower, as a kind of preferred best mounting means.Central gear can be directly in the terminal one machine-shaping of motor output shaft, and support for rotary disc and sanding disc driving shaft also can adopt integrated formed structure, to guarantee to have higher antitorque bond strength.In addition, the number of teeth of central gear, planetary gear, ring gear also not only is confined to the foregoing description, and ring gear and planetary gearratio are between 2:4 ~ 5, and the gearratio of planetary gear and central gear all is relatively more suitable between 1:4 ~ 6.
Explanation is at last; Above embodiment is only unrestricted in order to the technical scheme of explanation the utility model; Although with reference to preferred embodiment the utility model is specified, those of ordinary skill in the art should be appreciated that and can make amendment or be equal to replacement the technical scheme of the utility model; And not breaking away from the aim and the scope of the utility model technical scheme, it all should be encompassed in the middle of the claim scope of the utility model.
Claims (5)
1. a sand mill comprises the motor that is fixedly mounted in the body, and passes through the sanding disc that reducing gear links to each other with the output shaft of motor; It is characterized in that said reducing gear mainly is made up of ring gear, central gear, planetary gear and support for rotary disc; Ring gear is fixedly mounted in the body; Central gear is fixedly mounted on the output shaft of motor coaxially and stretches into the central authorities of ring gear; Planetary gear for size identical two or three and along central gear circumferentially evenly distributed and arranged and be engaged on central gear and ring gear between; The rotating shaft of support for rotary disc and motor output shaft are at same axis, and each planetary gear is installed in rotation on the support for rotary disc; Also be fixedly connected with on the support for rotary disc and the sanding disc driving shaft of motor output shaft at same axis, said sanding disc is fixedly mounted on the sanding disc driving shaft.
2. sand mill according to claim 1 is characterized in that, said ring gear and planetary gearratio are 2:4 ~ 5; The gearratio of said planetary gear and central gear is 1:4 ~ 6.
3. sand mill according to claim 1; It is characterized in that; Said support for rotary disc is provided with the bolster identical with planetary gear quantity; Each planetary gear is equipped with in axis hole and the axis hole bearing is installed, and each planetary gear is installed in rotation on the bolster of support for rotary disc through the bearing in its axis hole.
4. sand mill according to claim 1 is characterized in that, said support for rotary disc and sanding disc driving shaft are formed in one.
5. sand mill according to claim 1 is characterized in that the output shaft of said central gear and motor is one-body molded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203482667U CN202209039U (en) | 2011-09-16 | 2011-09-16 | Sand mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203482667U CN202209039U (en) | 2011-09-16 | 2011-09-16 | Sand mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202209039U true CN202209039U (en) | 2012-05-02 |
Family
ID=45988591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203482667U Expired - Lifetime CN202209039U (en) | 2011-09-16 | 2011-09-16 | Sand mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202209039U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102909625A (en) * | 2012-10-25 | 2013-02-06 | 重庆建工第二建设有限公司 | Grinding machine |
| CN104972368A (en) * | 2015-05-25 | 2015-10-14 | 苏州建鑫建设集团有限公司 | Wall surface grinding device |
| CN108857794A (en) * | 2018-08-08 | 2018-11-23 | 哈尔滨岩鹏科技有限公司 | A kind of high-end equipment manufacturing cold-rolled steel sheet polydisc burnishing device |
| CN108908071A (en) * | 2018-08-08 | 2018-11-30 | 哈尔滨岩鹏科技有限公司 | A kind of cold-rolled steel sheet polissoir for high-end equipment manufacturing |
-
2011
- 2011-09-16 CN CN2011203482667U patent/CN202209039U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102909625A (en) * | 2012-10-25 | 2013-02-06 | 重庆建工第二建设有限公司 | Grinding machine |
| CN104972368A (en) * | 2015-05-25 | 2015-10-14 | 苏州建鑫建设集团有限公司 | Wall surface grinding device |
| CN108857794A (en) * | 2018-08-08 | 2018-11-23 | 哈尔滨岩鹏科技有限公司 | A kind of high-end equipment manufacturing cold-rolled steel sheet polydisc burnishing device |
| CN108908071A (en) * | 2018-08-08 | 2018-11-30 | 哈尔滨岩鹏科技有限公司 | A kind of cold-rolled steel sheet polissoir for high-end equipment manufacturing |
| CN108908071B (en) * | 2018-08-08 | 2019-07-23 | 江门市盈晟金属制品有限公司 | A kind of cold-rolled steel sheet polissoir for high-end equipment manufacturing |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202209039U (en) | Sand mill | |
| CN207282720U (en) | A kind of antenna rotating platform structure | |
| CN203560366U (en) | Multistage gear drive device | |
| CN203585256U (en) | Planetary differential speed reducer for crane | |
| CN204852190U (en) | Be used for articular planet transmission reduction gear of robot or arm | |
| CN204248586U (en) | The transmission device of wall surface grinding machine | |
| CN202266638U (en) | Hard tooth surface speed reducer for spiral bevel gear | |
| CN202612486U (en) | Fracturing pump driving device for planetary reduction box | |
| CN202851827U (en) | Garden machine small-tooth-difference transmission mechanism | |
| CN101987585A (en) | Rotation adjusting device for vehicle seat | |
| CN202097623U (en) | Hand-held grinding polisher | |
| CN201797605U (en) | Revolution platform of mobile communication antenna feed system | |
| CN202726933U (en) | Wrist transmission structure of manipulator | |
| CN201637265U (en) | Small-sized driving device of rotary kiln | |
| CN201863399U (en) | Oil press | |
| CN201086355Y (en) | High-efficiency transmission device of planetary type mixer | |
| CN203309054U (en) | Stepless speed regulating planetary speed reducer for straightening machine | |
| CN102454362A (en) | Gear box floating structure of drilling machine power head | |
| CN201863734U (en) | Car seat rotation regulating device | |
| CN201944208U (en) | Reduction gear capable of changing transmission ratio | |
| TWI476335B (en) | Reducer | |
| CN202560943U (en) | Portable type satellite antenna pitching reducer | |
| CN201884568U (en) | Novel planetary gear reducer | |
| CN201739433U (en) | Gear pair for passenger car | |
| CN201310610Y (en) | Labor-saving transmission device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120502 |
|
| CX01 | Expiry of patent term |