CN109253742A - Has the encoder of oil-stain-preventing construction - Google Patents
Has the encoder of oil-stain-preventing construction Download PDFInfo
- Publication number
- CN109253742A CN109253742A CN201710566196.4A CN201710566196A CN109253742A CN 109253742 A CN109253742 A CN 109253742A CN 201710566196 A CN201710566196 A CN 201710566196A CN 109253742 A CN109253742 A CN 109253742A
- Authority
- CN
- China
- Prior art keywords
- bearing
- encoder
- shaft part
- mandrel
- baffle
- 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.)
- Withdrawn
Links
- 238000010276 construction Methods 0.000 title claims abstract description 16
- 210000002421 cell wall Anatomy 0.000 claims abstract description 12
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000009792 diffusion process Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000003373 anti-fouling effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- -1 greasy dirt Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optical Transform (AREA)
Abstract
The present invention provides a kind of encoder of tool oil-stain-preventing construction, comprising: pedestal, the perforation comprising body portion and in body portion；Mandrel is set in perforation, and includes the first shaft part, the second shaft part and external shoulder face, and external shoulder face is between the first shaft part and the second shaft part, and towards the direction where the first shaft part；Bearing is set in mandrel and is set in perforation, and includes inner ring and outer ring, and inner ring ring is affixed on all sides of the first shaft part, and outer ring is connected to the hole wall of perforation；Baffle is set in mandrel and is set on bearing, and includes piece body, cricoid slot and most shrinkage pools, and the side that slot is set to piece body is unilateral, and most shrinkage pools are set to the cell wall of slot and are opposite in bearing；And encoder element, it is set in mandrel and is set on baffle, comprising the code-disc being rotatablely arranged in mandrel, baffle is between bearing and code-disc.The present invention can retardation greasy dirt seepage flow, improve greasy dirt prevent ability.
Description
Technical field
The present invention is related with encoder, especially with regard to a kind of encoder of tool oil-stain-preventing construction.
Background technique
By detection technology provided by encoder, parse direction of rotation, angle and position of motor etc., provide commutation,
Information needed for the motor controls such as speed and position is the technological means to be widely adopted in motor control technique field, more
For using motor as the basic of the automation equipment required precision of power source.
Since encoder needs are incorporated on shaft or the axle sleeve of sensed motor, and synchronize code-disc and is driven in motor,
Therefore, maintaining rotation, smoothly lubrication technology is difficult to omit, but also high temperature caused by making to rotate causes oil gas to dissipate and shadow
Encoder is rung for the correctness of signal sensing, and influence caused by the grating for optical encoder is especially pronounced.
Summary of the invention
Therefore, the main object of the present invention is to provide a kind of encoder of tool oil-stain-preventing construction, simple element and just
In installation, except the code-disc of avoidable encoder is in addition to by oil pollution, and cost can be reduced.
To reach above-mentioned purpose, the invention adopts the following technical scheme:
In baffle by clamping fixed technology contents, the encoder of tool oil-stain-preventing construction include pedestal, mandrel, bearing,
Baffle and encoder element.Pedestal has body portion and provides in the perforation in body portion.Mandrel has coaxial corresponding first shaft part, the
Two shaft parts, and the external shoulder face between the first shaft part, the second shaft part, and be located at first axle section in perforation, and external shoulder face then face
Direction to where the first shaft part.Bearing is set in mandrel, and is located in perforation, and the interior side ring surface ring of inner ring is made to be affixed on first
All sides of shaft part, and the outer side ring surface of outer ring is made to be connected to the hole wall of perforation.Baffle has piece body, and piece, which is worn, is placed on mandrel
On, and schedule paraxial position between external shoulder face and inner ring one end of bearing by clamping, and make the position of distal shaft, positioned at bearing
Outside outer ring one end, baffle is set to be pressed from both sides and be fixed accordingly.Encoder element has code-disc, and code-disc is fixedly arranged on mandrel and is located at pedestal
Outside, at least it is separated by between bearing with baffle.
On the technology contents of retardation greasy dirt seepage flow, then by increasing baffle per surface area or stopping greasy dirt dispersal direction
Technological means reach, wherein in the increase of per surface area, can make recessed, prominent or not in being arranged on the surface of baffle
The shape of rule achievees the effect that prevent to increase the diffusion path of greasy dirt.
In blocks flow or diffusion technique, then be make perforation be sequentially partitioned into along hole axle small-bore the first aperture section,
The second aperture section of large aperture and the interior shoulder face between the first aperture section and the second aperture section, and with the hole wall of the first aperture section
It is abutted with side ring surface outside the outer ring of bearing, and is located at piece body in the section of the second aperture, and the diameter of piece body is made to be greater than the first aperture
The aperture of section and less than the aperture of the second aperture section, and make to be spaced between baffle and interior shoulder face and.
Further, baffle includes the shrinkage pool of slot and majority, bracket groove be set to piece body side it is unilateral on, and in making
The diameter of side channel wall is greater than the annular diameters of bearing, and so that the diameter of outside cell wall is greater than the outer annular diameter of bearing, and make slot
Outside cell wall and interior shoulder face be spaced come, accordingly between bearing and perforation aperture formed detour turnover connected space, with resistance
Keep off the diffusion or flowing of greasy dirt.Shrinkage pool is set to the cell wall of slot and is opposite in the bearing, in order to the diffusion space to increase oil gas, with
The pollution range of retardation greasy dirt.
In addition, encoder element also includes sensing member, sensing member is fixedly arranged on ontology, and between washer and code-disc.
The invention has the advantages that
The present invention is sandwiched baffle between the code-disc for being fixedly located in bearing and encoder, empty where bearing to stop
Between pollution, and in setting retardance construction on baffle, with the seepage flow of retardation greasy dirt, improving greasy dirt prevents ability.
Detailed description of the invention
Fig. 1 is the perspective view of the embodiment of the present invention.
Fig. 2 is the exploded view of the embodiment of the present invention.
Fig. 3 is the cross-sectional view of the embodiment of the present invention 3-3 face line along Fig. 1.
Fig. 4 is the baffle structure schematic diagram of the embodiment of the present invention.
Specific embodiment
Firstly, please referring to shown in Fig. 1 and Fig. 2, wherein Fig. 1 is the perspective view of the taken off embodiment of the present invention, and Fig. 2 is the present invention
The exploded view of taken off embodiment.The encoder 10 of tool oil-stain-preventing construction is provided in embodiments of the present invention, specifically includes that seat
Body 20, mandrel 30, two bearings 40,50, baffle 60 and encoder element 70, wherein two bearings 40,50, baffle 60 and coding member
Part 70 is set in mandrel 30, and mandrel 30 is set on pedestal 20.
Referring again to Fig. 3 and Fig. 4, wherein Fig. 3 is for the cross-sectional view in the direction 3-3 in Fig. 1, and Fig. 4 is the embodiment of the present invention
Baffle structure schematic diagram.Pedestal 20 has body portion 21 and the perforation 22 in body portion 21.It removes with being provided as this reality in body portion 21
Outside the pedestal for applying the setting of other components of example, and such as screw lock member can be cooperated to be set on motor body.Perforation 22 includes
First aperture the 221, second aperture of section section 222 and the interior shoulder face between the first aperture section 221 and the second aperture section 222
223.In the present embodiment, aperture of the aperture of the first aperture section 221 less than the second aperture section 222.
Mandrel 30 is arranged in the perforation 22 of pedestal 20, and has the first shaft part 31, the second shaft part 32 and an external shoulder face 33,
Wherein the diameter of the first shaft part 31 is defined with this between the first shaft part 31 and the second shaft part 32 less than the diameter of the second shaft part 32
Between external shoulder face 33.First shaft part 31 is extended through in the first aperture section 221 and the second aperture section 222, and perforation 22 is simultaneously stretched out in one end
Outside the aperture of one end.Second shaft part 32 is coaxially located at 31 other end of the first shaft part, and the second aperture of drawing-in section 222 and stretch out perforation 22
Other end aperture outside.
Each bearing 40,50 is set in respectively in mandrel 30, and is located in perforation 22, and make the inside of inner ring 41,51 respectively
Anchor ring ring is affixed on 31 side of the first shaft part, and makes the outer side ring surface of outer ring 42,52 against amplexiforming in the first aperture section 221
On hole wall, support is provided between mandrel 30 and pedestal 20 accordingly, rotates mandrel 30 relative to pedestal 20.
As shown in Figures 2 to 4, baffle 60 is set in mandrel 30, and with outer diameter less than the second aperture 222 apertures of section
Cricoid body 61, cricoid slot 62 and most shrinkage pools 63.Piece body 61 is sandwiched in outer close to the inside line of the annular center of curvature
Between axial one end of 40 inner ring 41 of shoulder face 33 and adjacent bearing, and by clamping positioning, so that mandrel 30 must be driven in and rotated, and
Make the distal shaft i.e. outside left far from the annular center of curvature, positioned at 42 outside of outer ring of adjacent bearing 40, to be fully covered in
On one end of adjacent bearing 40.Coaxial recessed on the side that piece body 61 is opposite in adjacent bearing 40 is unilateral, the inside cell wall of slot 62
623 diameter and the diameter for being greater than adjacent 40 inner ring 41 of bearing, the diameter of outside cell wall 622 are then greater than the outer ring of adjacent bearing 40
42 diameters.Shrinkage pool 63 is respectively arranged on the back of slot 62 in the groove bottom wall 621 of channel opening.
As shown in Figure 2 and Figure 3, encoder element 70 is known optical encoder, has code-disc 71, to sense optical signal
Sensing member 72 and the illuminator to issue optical signal (not showing on figure) etc..Code-disc 71 is fixedly arranged on the other end of mandrel 30,
It can rotate synchronously with mandrel 30, and be separated by between bearing 40,50 with baffle 60.Sensing member 72 is then fixedly arranged in body portion 21, and is situated between
Between code-disc 71 and baffle 60, and make code-disc 71 between sensing member 72 and illuminator.
The encoder 10 that the present embodiment provides tool oil-stain-preventing construction is by between 40 inner ring 41 of external shoulder face 33 and bearing
Space, for setting baffle 60 and providing clamping combination, without extraly passing through other binding members between baffle 60 and mandrel 30
It is upper from very facilitating in assembling processing with fixation, the demand of material can be also reduced, cost is reduced.
Furthermore baffle 60 causes to dissipate oil vapour pollution code-disc except avoidable from the generated high temperature of the rotation of bearing 40,50
Outside 71, the diffusion space of oil gas can be increased, by 62 space of shrinkage pool 63 and slot being set in groove bottom wall 621 with retardation greasy dirt
Pollution range, meanwhile, pass through 62 exterior annular cell wall 622 of slot the second aperture section 222 hole space formed in detour
Turnover space blocks the spillage of greasy dirt with this to increase the movement routine of dissipation oil gas, and promotion the present embodiment can be reached anti-
Dirty effect.
In addition, required proposed explanation again, the shape of each shrinkage pool 63 is not above to open the circle that embodiment is taken off
It is limited, is also able to such as polygon geometry or other irregular shapes, also, shrinkage pool setting position is not also with slot bottom
Wall is limited, for example, shrinkage pool is on outside cell wall, inside cell wall.Also, further to increase the antifouling energy of baffle 60
Power can make baffle 60 have the property of absorption greasy dirt, be etc. that the presence of properties can then be assigned by material or processing procedure, the former
It can be such as oil absorbent material, the latter then can be the porous structure of metal sintering, it is further enhanced antifouling efficacy of the invention,
For example, with powder metallurgically manufacturing washer, the adsorbable bearing oil gas of small pore on washer increases and reduces greasy dirt and leak outside function
Effect.
In conclusion the encoder that the present invention takes off tool oil-stain-preventing construction has the advantage that
One, mandrel and baffle are separate structure, can increase the convenience of assembling and reduce Material Cost.
Secondly, baffle can be prevented with groove-like structure the substances such as greasy dirt, dust and aqueous vapor pollute code-disc, with lasting maintenances encode
The precision of device.
Thirdly, the porous design of baffle can not only reduce material and processing cost, and can effectively reduce greasy dirt leakage.
The above is presently preferred embodiments of the present invention and its technical principle used, for those skilled in the art
For, without departing from the spirit and scope of the present invention, any equivalent change based on the basis of technical solution of the present invention
Change, simple replacement etc. is obvious changes, all fall within the protection scope of the present invention.
Claims (6)
1. having the encoder of oil-stain-preventing construction characterized by comprising
One pedestal, the perforation being set to comprising the whole body portion and one in the body portion；
One mandrel is set in the perforation, and includes one first shaft part, one second shaft part and an external shoulder face, wherein the external shoulder
Face is between first shaft part and second shaft part, and towards the direction where first shaft part；
One bearing is set in the mandrel and is set in the perforation, and includes an inner ring and an outer ring, wherein the inner ring ring
All sides of first shaft part are affixed on, and the outer ring is connected to the hole wall of the perforation；
One baffle is set in the mandrel and is set on the bearing, and includes the recessed of a piece of body, a cricoid slot and majority
Hole, wherein the slot is unilateral set on the side of the piece body, and most shrinkage pools are set to the cell wall of the slot and are opposite in the bearing；And
One encoder element is set in the mandrel and is set on the baffle, and includes one to be rotatablely arranged in the mandrel
Code-disc, wherein the baffle is between the bearing and the code-disc.
2. the encoder of tool oil-stain-preventing construction as described in claim 1, which is characterized in that the perforation is sequentially separated along hole axle
At the first aperture section of a small-bore, the second aperture section of a large aperture and one between first aperture section and second aperture section
Between interior shoulder face, and with first aperture section hole wall is abutted with side ring surface outside the outer ring of the bearing, make described body positioned at this
Second aperture section in, and make described body diameter be greater than first aperture section aperture and be less than second aperture section hole
Diameter, and be spaced the baffle and the interior shoulder face and come.
3. the encoder of tool oil-stain-preventing construction as claimed in claim 2, which is characterized in that the diameter of the inside cell wall of the slot
Greater than the annular diameters of the bearing, the diameter of outside cell wall is greater than the outer annular diameter of the bearing.
4. the encoder of tool oil-stain-preventing construction as described in claim 1, which is characterized in that the shrinkage pool is set to the back of the slot
In in the groove bottom wall of channel opening.
5. the encoder of tool oil-stain-preventing construction as described in claim 1, which is characterized in that described body in a ring and coaxially in
The slot.
6. the encoder of tool oil-stain-preventing construction as described in claim 1, which is characterized in that the encoder element also includes one
Sensing member is fixedly arranged on the pedestal, and between the baffle and code-disc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710566196.4A CN109253742A (en) | 2017-07-12 | 2017-07-12 | Has the encoder of oil-stain-preventing construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710566196.4A CN109253742A (en) | 2017-07-12 | 2017-07-12 | Has the encoder of oil-stain-preventing construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109253742A true CN109253742A (en) | 2019-01-22 |
Family
ID=65050807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710566196.4A Withdrawn CN109253742A (en) | 2017-07-12 | 2017-07-12 | Has the encoder of oil-stain-preventing construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109253742A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003169436A (en) * | 2001-11-30 | 2003-06-13 | Matsushita Electric Ind Co Ltd | Motor fitted with optical encoder |
| CN102023020B (en) * | 2009-09-11 | 2012-06-06 | 台达电子工业股份有限公司 | Coding device with oil mist prevention and control structure |
| TWI425195B (en) * | 2009-09-04 | 2014-02-01 | Delta Electronics Inc | Encoder having a grease prevention assembly |
| CN204284216U (en) * | 2014-11-23 | 2015-04-22 | 长春禹衡光学有限公司 | A kind of axle system anti-splash device of encoder |
| CN205607412U (en) * | 2016-03-30 | 2016-09-28 | 长春汇通光电技术有限公司 | Encoder with grease proofing fog structure |
-
2017
- 2017-07-12 CN CN201710566196.4A patent/CN109253742A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003169436A (en) * | 2001-11-30 | 2003-06-13 | Matsushita Electric Ind Co Ltd | Motor fitted with optical encoder |
| TWI425195B (en) * | 2009-09-04 | 2014-02-01 | Delta Electronics Inc | Encoder having a grease prevention assembly |
| CN102023020B (en) * | 2009-09-11 | 2012-06-06 | 台达电子工业股份有限公司 | Coding device with oil mist prevention and control structure |
| CN204284216U (en) * | 2014-11-23 | 2015-04-22 | 长春禹衡光学有限公司 | A kind of axle system anti-splash device of encoder |
| CN205607412U (en) * | 2016-03-30 | 2016-09-28 | 长春汇通光电技术有限公司 | Encoder with grease proofing fog structure |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190122 |
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| WW01 | Invention patent application withdrawn after publication |