CN202091315U - Connection structure of bearingless hollow shaft coder and output shaft of detected machine - Google Patents
Connection structure of bearingless hollow shaft coder and output shaft of detected machine Download PDFInfo
- Publication number
- CN202091315U CN202091315U CN2010206537597U CN201020653759U CN202091315U CN 202091315 U CN202091315 U CN 202091315U CN 2010206537597 U CN2010206537597 U CN 2010206537597U CN 201020653759 U CN201020653759 U CN 201020653759U CN 202091315 U CN202091315 U CN 202091315U
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- encoder
- output shaft
- hollow
- hollow shaft
- tested mechanical
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Abstract
A connection structure of a bearingless hollow shaft coder and an output shaft of a detected machine comprises a coder hollow shaft, an output shaft of a detected machine and a fixed press block connecting the coder and the detected machine. The coder is connected with the detected machine through the fixed press block. An expansion connecting device is also included. The coder hollow shaft is connected with the output shaft of the detected machine through the expansion connecting device. The expansion connecting device comprises an expansion brake lining and fastening screws. The inside of the expansion braking lining is provided with a hollow cavity, the fastening screws penetrate through the hollow cavity, the fastening screws exert an radial force from the inside out on the lateral wall of the expansion braking in order to closely connect the coder hollow shaft with the output shaft of the detected machine in the radial direction. The end of the output shaft of the detected machine is provided with screw holes, and the fastening screws are screwed into the screw holes. The connection structure absorbs the advantages of the prior art and resolves the problem of connection of the coder and the output shaft of the detected machine, thereby being a good connection structure.
Description
Technical field
The utility model relates to the linkage structure of shaft angle encoder, and especially a kind of do not have a linkage structure that bearing hollow shaft encoder does not have bearing hollow shaft encoder and tested mechanical output shaft, belongs to the technical field of sophisticated sensor.
Background technique
(claim again: sleeve) shaft angle encoder is the form with the input in hole to hollow shaft, encoder is enclosed within on the running shaft of tested machinery, and be the Fig. 1 that is rigidly connected with it, direct rotational parameters (as: angle to tested solid of rotation, rotating speed etc.) measure, thereby obtain reliable feedback parameter, the mechanical connection of hollow shaft encoder is just like three kinds of forms shown in the accompanying drawing 2～4:
Fig. 1 is the signal that is connected of hollow shaft encoder with the tested machinery of prior art.
Shown in Figure 2, the hollow shaft sleeve of hollow shaft encoder is fastenedly connected diaxon at front end on the running shaft of tested machinery.
Shown in Figure 3, the hollow shaft sleeve of hollow shaft encoder is connected with tested mechanical axis in the rear end of encoder on the axle of tested machinery.
Shown in Figure 4, the hollow shaft sleeve of hollow shaft encoder is provided with a perforation in the hollow shaft of encoder on tested mechanical axis, and screw passes through hole, and tight hollow shaft and tested mechanical axis.
Along with the development of modern technologies, also more and more higher to the requirement of encoder, axially installation dimension is little, and axially the installation precision height is one of key factor to the requirement of encoder machinery.
According to the new demand of hollow shaft encoder product, more than several connections also there are the following problems:
1, Fig. 2 and structure shown in Figure 3, connection need encoder axially stretching out a part that install to clamp, the axial length of encoder has increased.
2, structure shown in Figure 2 is also because front end is unsettled, thus also need to be provided with an encoder support, the complexity that structure is become, at the coupling shaft diameter hour, it is thin more to seem.
3, structure shown in Figure 4 adopts diaxon end and tight method, and end frictional force is less, and is when frequent clockwise and anticlockwise, easily loosening.Axially installation dimension can not be adjusted.
4, particularly (annotate: the pedestal of encoder and tested mechanical pedestal are rigidly connected for the encoder of the higher ultra-thin shape of no bearing of integrated installation requirement, the hollow shaft of encoder and tested mechanical axis are rigidly connected) connected system, all very high to radially axial requirement, it is special that this problem more seems.
The control axial length will improve processing, installation precision; When solving axial installation question, the encoder axial length must increase again.This is a pair of more scabrous contradiction.
Now be connected with the installation of tested machinery, also do not have a kind of good structure for no bearing hollow shaft encoder.
Summary of the invention
The utility model proposes the linkage structure of no bearing hollow shaft encoder and tested mechanical output shaft, do not increase on the basis of axial length in assurance, realize connecting by the swelling friction, diaxon (output shaft of encoder and tested mechanical axis) is connected as a single entity, the axial connection length of hollow shaft can be adjusted at random, both satisfy the requirement that does not increase the encoder axial length, also rationally solved the problem that connects of installing simultaneously.
The utility model is realized by following project organization:
A kind of linkage structure of not having bearing hollow shaft encoder and tested mechanical output shaft comprises encoder hollow shaft, tested mechanical output shaft and connects encoder and tested mechanical fixed briquetting; Connecting encoder is connected in mechanically tested by fixing briquetting.Also comprise the swelling connector, described encoder hollow shaft connects tested mechanical output shaft by the swelling connector; Described swelling connector comprises swelling brake lining and fastening screw; Swelling brake lining inside is provided with hollow; Fastening screw is through in the hollow, and the fastening screw head is executed from inside to outside radially power to swelling brake lining sidewall, and the encoder hollow shaft closely is connected diametrically with tested mechanical output shaft; The end of described tested mechanical output shaft is provided with screw, and described fastening screw trip bolt is spun in the screw.
The shape of described hollow is cylindrical or prismatic; Hollow, screw, tested mechanical output shaft and encoder hollow shaft are coaxial; Described screw head is taper, and the less end diameter of screw head is less than the minimum diameter in the hollow, and the bigger end diameter of screw head is greater than the maximum inner diameter in the hollow.
Described swelling brake lining is connected in the tail end of tested mechanical output shaft, and described encoder hollow shaft sleeve is outside the tail end of tested mechanical output shaft, and the swelling brake lining stretches in the encoder hollow shaft sleeve.
Described swelling brake lining is connected in encoder hollow shaft sleeve head end; The tail end of corresponding tested mechanical output shaft is provided with the hole, and described swelling brake lining stretches in this hole.
Principle of the present utility model is, when screw during along the screw precession of tested mechanical output shaft, swelling brake lining radially symmetry opens, and diaxon is an one radially and tightly.On the contrary, when screw when the screw of tested mechanical axis screws out, the swelling brake lining can radially reset, diaxon separates.
The utility model has been drawn the advantage of prior art and has been learnt from other's strong points to offset one's weaknesses, and preferably resolves the connectivity problem of encoder and tested mechanical axis.It is a kind of connecting means preferably.
Description of drawings
Fig. 1 is the hollow shaft encoder of prior art and the connection diagram of tested machinery;
Wherein, the 1.1st, tested machinery, the 1.2nd, hollow shaft encoder.
Fig. 2 is the external part schematic representation that links to each other with tested mechanical axis before the hollow shaft encoder;
Wherein, the 2.1st, tested mechanical output shaft, 2.2 encoder front end shaft connection places, the 2.3rd connect support.
Fig. 3 is the external part schematic representation that links to each other with tested mechanical axis behind the hollow shaft encoder;
Wherein, the 3.1st, connect support, the 3.2nd, shaft connection place, encoder rear end, the 3.3rd, shaft connection place, encoder rear end.
Fig. 4 is that the hollow shaft encoder is provided with a step and the tested mechanical axis and the schematic representation that tightly is connected in axis hole;
Wherein, the 4.1st, connect support, the 4.2nd, the structure, the 4.3rd of screw and tight hollow shaft and tested mechanical output shaft, encoder hollow shaft, the 4.4th, tested mechanical output shaft.
Fig. 5 is the assembling schematic representation of the utility model linkage structure;
Fig. 5 A is the A part partial enlarged drawing of Fig. 5;
Fig. 6 is embodiment's 1 schematic representation;
Fig. 7 is embodiment's 2 schematic representation;
Fig. 8 is the schematic representation of a special case of embodiment 2;
Wherein, the 1st, tested machinery, the 2nd, encoder, the 3rd, encoder hollow shaft, the 4th, swelling brake lining, 5 fastening screws, the 51st, the taper piece, the 6th that expands, screw, the 7th, tested mechanical output shaft, the 8th, fixedly briquetting.
Embodiment
Below in conjunction with accompanying drawing 5～8 and embodiment the technical program is described further.
A kind of linkage structure of not having bearing hollow shaft encoder and tested mechanical output shaft comprises encoder hollow shaft, tested mechanical output shaft and connects encoder and tested mechanical fixed briquetting; Connecting encoder is connected in mechanically tested by fixing briquetting.Also comprise the swelling connector, described encoder hollow shaft connects tested mechanical output shaft by the swelling connector; Described swelling connector comprises swelling brake lining and fastening screw; Swelling brake lining inside is provided with hollow; Fastening screw is through in the hollow, and the fastening screw head is executed from inside to outside radially power to swelling brake lining sidewall, and the encoder hollow shaft closely is connected diametrically with tested mechanical output shaft; The end of described tested mechanical output shaft is provided with screw, and described fastening screw trip bolt is spun in the screw.
The shape of described hollow is cylindrical or prismatic; Hollow, screw, tested mechanical output shaft and encoder hollow shaft are coaxial; Described screw head is taper, and the less end diameter of screw head is less than the minimum diameter in the hollow, and the bigger end diameter of screw head is greater than the maximum inner diameter in the hollow.
Fig. 5 is the schematic representation that the utility model hollow shaft encoder is connected with tested mechanical axis, installs as follows:
1) earlier fastening screw is installed on the axle of tested machinery, screw and swelling brake lining unclamp, the swelling brake lining in the raw, with the hollow shaft sleeve of encoder on the output shaft of tested machinery.
2) the encoder pedestal is installed on the pedestal connecting end of tested machinery, carries out axially locating and connect, and be fastened on Fig. 5 on the tested mechanical pedestal with fixing briquetting.
During 3) with the fastening screw precession on the tested mechanical axis, along with the precession swelling brake lining of fastening screw will radially open, and with the hollow shaft of encoder radially and tight, axial dimension no change, hollow shaft encoder and tested shaft successful connection.
As Fig. 6, described swelling brake lining is connected in the tail end of tested mechanical output shaft, and described encoder hollow shaft sleeve is outside the tail end of tested mechanical output shaft, and the swelling brake lining stretches in the encoder hollow shaft sleeve.
When tested mechanical axis rotated, the hollow shaft of encoder is rotation synchronously thereupon also, and the parameter of output mechanical rotation, had finished the overall process of data capture smoothly.Since in the whole service process, the maximum static friction state that radially is in all the time of joint, and diaxon is integral rotation.So,, make connected system solid and reliable no matter forward or reverse can not become flexible.
As Fig. 7, described swelling brake lining is connected in encoder hollow shaft sleeve head end; The tail end of corresponding tested mechanical output shaft is provided with the hole, and described swelling brake lining stretches in this hole.
This routine structure is installed as follows:
1) hollow shaft with encoder puts in the delivery outlet of tested machinery.
2) the encoder pedestal is installed on the pedestal connecting end of tested machinery, positions connection, and be fastened on the tested mechanical pedestal with fixing briquetting.
3) fastening screw is passed the hollow shaft of encoder, the screw in the tested mechanical hole of precession.
4) when screw during along the screw precession of tested mechanical output shaft, the swelling brake lining can radially open; On the contrary, when screw when tested shaft screws out, the swelling brake lining can radially reset, in the raw;
5) with the fastening screw precession on the tested mechanical axis, tension force passes to the swelling brake lining on the encoder axle, and the swelling brake lining radially opens, and with tested mechanical axis radially and stressed joint, axial dimension no change, hollow shaft encoder and tested mechanical axis successful connection.
When tested mechanical axis rotated, the hollow shaft of encoder is rotation synchronously thereupon, and in the whole service process, diaxon is integral rotation, the maximum static friction state that radially is in all the time of joint.So,, make connected system solid and reliable no matter forward or reverse can not become flexible.
As Fig. 8, be a special case of example 2, the screw terminal of fastening screw is cylindrical, is provided with the bloated piece of taper below screw terminal.When tested mechanical axis rotated, the hollow shaft of encoder is rotation synchronously thereupon also, and the parameter of output mechanical rotation, had finished the overall process of data capture smoothly.Because in the whole service process, and tight screw terminal, spacer shell and the swelling brake lining all is in and tight maximum static friction state, and tight screw, there is not relative movement trend with tested mechanical axis, equally, no matter forward or reverse can not become flexible, make connected system solid and reliable.
Claims (4)
1. a linkage structure of not having bearing hollow shaft encoder and tested mechanical output shaft comprises encoder hollow shaft, tested mechanical output shaft and connects encoder and tested mechanical fixed briquetting; Connect encoder and be connected in mechanically testedly by fixing briquetting, it is characterized in that also comprising the swelling connector, described encoder hollow shaft connects tested mechanical output shaft by the swelling connector;
Described swelling connector comprises swelling brake lining and fastening screw; Swelling brake lining inside is provided with hollow; Fastening screw is through in the hollow, and the fastening screw head is executed from inside to outside radially power to swelling brake lining sidewall, and the encoder hollow shaft closely is connected diametrically with tested mechanical output shaft; The end of described tested mechanical output shaft is provided with screw, and described fastening screw trip bolt is spun in the screw.
2. the linkage structure of no bearing hollow shaft encoder according to claim 1 and tested mechanical output shaft, the shape that it is characterized in that described hollow are cylindrical or prismatic; Hollow, screw, tested mechanical output shaft and encoder hollow shaft are coaxial; Described screw head is taper, and the less end diameter of screw head is less than the minimum diameter in the hollow, and the bigger end diameter of screw head is greater than the maximum inner diameter in the hollow.
3. the linkage structure of no bearing hollow shaft encoder according to claim 1 and 2 and tested mechanical output shaft, it is characterized in that described swelling brake lining is connected in the tail end of tested mechanical output shaft, described encoder hollow shaft sleeve is outside the tail end of tested mechanical output shaft, and the swelling brake lining stretches in the encoder hollow shaft sleeve.
4. the linkage structure of no bearing hollow shaft encoder according to claim 1 and 2 and tested mechanical output shaft is characterized in that described swelling brake lining is connected in encoder hollow shaft sleeve head end; The tail end of corresponding tested mechanical output shaft is provided with the hole, and described swelling brake lining stretches in this hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206537597U CN202091315U (en) | 2010-12-10 | 2010-12-10 | Connection structure of bearingless hollow shaft coder and output shaft of detected machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206537597U CN202091315U (en) | 2010-12-10 | 2010-12-10 | Connection structure of bearingless hollow shaft coder and output shaft of detected machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202091315U true CN202091315U (en) | 2011-12-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206537597U Expired - Fee Related CN202091315U (en) | 2010-12-10 | 2010-12-10 | Connection structure of bearingless hollow shaft coder and output shaft of detected machine |
Country Status (1)
| Country | Link |
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| CN (1) | CN202091315U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104104191A (en) * | 2014-05-14 | 2014-10-15 | 深圳市今天国际物流技术股份有限公司 | Encoder installing and connecting device |
| CN109277840A (en) * | 2018-11-26 | 2019-01-29 | 重庆机床(集团)有限责任公司 | A kind of bipyramid handle encoder interfaces adapter |
| CN109899524A (en) * | 2019-04-24 | 2019-06-18 | 常州工学院 | Hollow shaft encoder sealing installation structure |
-
2010
- 2010-12-10 CN CN2010206537597U patent/CN202091315U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104104191A (en) * | 2014-05-14 | 2014-10-15 | 深圳市今天国际物流技术股份有限公司 | Encoder installing and connecting device |
| CN104104191B (en) * | 2014-05-14 | 2016-08-24 | 深圳市今天国际物流技术股份有限公司 | A kind of encoder installing and connecting apparatus |
| CN109277840A (en) * | 2018-11-26 | 2019-01-29 | 重庆机床(集团)有限责任公司 | A kind of bipyramid handle encoder interfaces adapter |
| CN109899524A (en) * | 2019-04-24 | 2019-06-18 | 常州工学院 | Hollow shaft encoder sealing installation structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111228 Termination date: 20151210 |
|
| EXPY | Termination of patent right or utility model |