CN203981198U - A kind of photoelectric encoder code-disc anti-dust protecting device - Google Patents
A kind of photoelectric encoder code-disc anti-dust protecting device Download PDFInfo
- Publication number
- CN203981198U CN203981198U CN201420470428.8U CN201420470428U CN203981198U CN 203981198 U CN203981198 U CN 203981198U CN 201420470428 U CN201420470428 U CN 201420470428U CN 203981198 U CN203981198 U CN 203981198U
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- dust cover
- side dust
- rear side
- code
- disc
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Abstract
A kind of photoelectric encoder code-disc anti-dust protecting device, relates to a kind of anti-dust protecting device.Solve code-disc how exposed problem that is arranged on machine surface and cause code-disc shade line to be stopped up by the dust of long-term accumulated in the time of application.The end face of front side described in the utility model dust cover and rear side dust cover is cylindrical shape, the end face of front side dust cover and rear side dust cover all coaxially arranges with code-disc body, the radius of described manhole is greater than the radius of code-disc rotation axis, and front side dust cover is fixedly connected with by connecting screw group with rear side dust cover, the outside of rear side dust cover end face is fixed with web member, described web member and rear side dust cover are integrally formed part, fixed head is vertically fixed on web member by fixed screw, the side of described front side dust cover and rear side dust cover all has exterior part clamping port, and front side dust cover is corresponding with the card interface of the side of rear side dust cover.The utility model is applicable to as code-disc anti-dust protecting device.
Description
Technical field
The utility model relates to a kind of anti-dust protecting device.
Background technology
In the occasion of a lot of Industry Control, people are often used in combination light emitting diode, photodiode and code-disc to reach the object that detects displacement.And being subject to the restriction of cost, code-disc part is often by the exposed machine surface that is arranged on.When code-disc is normally worked, due to rotate can and air produce friction and with static, and static can be adsorbed to code-disc surface by airborne dust.Dust over time accumulation can cause code-disc shade line to stop up, and may affect the normal operation of control system.The mode that adopts manual maintenance, waste of manpower and time, maintenance cost is high.
Summary of the invention
The utility model is in order to solve code-disc how exposed problem that is arranged on machine surface and cause code-disc shade line to be stopped up by the dust of long-term accumulated in the time applying, to have proposed a kind of photoelectric encoder code-disc anti-dust protecting device.
A kind of photoelectric encoder code-disc anti-dust protecting device described in the utility model, this device comprises front side dust cover, rear side dust cover, fixed screw, connecting screw group and fixed head, the end face of front side dust cover and rear side dust cover is cylindrical shape, and the radius of the end face of front side dust cover and rear side dust cover is all greater than the radius of code-disc, and the radius of the end face of front side dust cover and rear side dust cover equates, the end face of front side dust cover and rear side dust cover all coaxially arranges with code-disc body, and the center of rear side dust cover has manhole, the radius of described manhole is greater than the radius of code-disc rotation axis, front side dust cover and rear side dust cover are buckled in respectively front side and the rear side of code-disc body, and front side dust cover is fixedly connected with by connecting screw group with rear side dust cover, the outside of rear side dust cover end face is fixed with web member, described web member and rear side dust cover are integrally formed part, fixed head is vertically fixed on web member by fixed screw, the side of described front side dust cover and rear side dust cover all has exterior part clamping port, and front side dust cover is corresponding with the card interface of the side of rear side dust cover.
The utility model can not affect under the condition of the normal work of photoelectric encoder code-disc; code-disc is effectively protected; avoided the exposed problem that is arranged on machine surface and cause code-disc shade line to be stopped up by the dust of long-term accumulated of code-disc, and the utility model technique is simple, cost is low.
Brief description of the drawings
Fig. 1 is the vertical view of photoelectric encoder code-disc anti-dust protecting device described in the utility model;
Fig. 2 is the longitudinal sectional view of Fig. 1.
Embodiment
Embodiment one, in conjunction with Fig. 1 and Fig. 2, present embodiment is described, a kind of photoelectric encoder code-disc anti-dust protecting device described in present embodiment, this device comprises front side dust cover 1, rear side dust cover 2, fixed screw 5, connecting screw group 6 and fixed head 7;
The end face of described front side dust cover 1 and rear side dust cover 2 is cylindrical shape, and the radius of the end face of front side dust cover 1 and rear side dust cover 2 is all greater than the radius of code-disc 3, and the radius of the end face of front side dust cover 1 and rear side dust cover 2 equates, the end face of front side dust cover 1 and rear side dust cover 2 all coaxially arranges with code-disc body 3, and the center of rear side dust cover 2 has manhole, the radius of described manhole is greater than the radius of code-disc rotation axis 4, front side dust cover 1 and rear side dust cover 2 are buckled in respectively front side and the rear side of code-disc body 3, and front side dust cover 1 is fixedly connected with by connecting screw group 6 with rear side dust cover 2, the outside of rear side dust cover 2 end faces is fixed with web member, described web member and rear side dust cover 2 are integrally formed part, fixed head 7 is vertically fixed on web member by fixed screw 5, the side of described front side dust cover 1 and rear side dust cover 2 all has exterior part clamping port, and front side dust cover 1 is corresponding with the card interface of the side of rear side dust cover 2.
Described in present embodiment, device, no matter in the time that photoelectric encoder code-disc is static or while rotation, dust cover is all contactless with photoelectric encoder code-disc, therefore can produce and disturb the normal work of photoelectric encoder.Code-disc rotate time and windage cause code-disc with static.Code-disc with static can adsorb dust, and permanent accumulation can be stopped up code-disc.Front side dust cover (internal diameter size φ 42H10(+0.1 0)) and rear side dust cover (outside dimension φ 42H10(0-0.1)) form clearance fit, fixing by screw group 6.Dust cover can effectively be isolated in tiny dust outside dust cover by front part and rear section in the cooperation in mechanical dimension, reduces code-disc and dust contact probability, extends the code-disc life-span.
The utility model can also prevent code-disc to be subject to external force under abnormal condition and produce axial and footpath skew upwards.
Embodiment two
,present embodiment is that front side dust cover (1) and rear side dust cover (2) all adopt plastic dust cover to the further illustrating of a kind of photoelectric encoder code-disc anti-dust protecting device described in embodiment one.
Embodiment three, present embodiment are that the distance between side dust cover 2 and code-disc rotation axis 4 is less than 0.5mm to the further illustrating of a kind of photoelectric encoder code-disc anti-dust protecting device described in embodiment one.
Embodiment four, present embodiment are further illustrating a kind of photoelectric encoder code-disc anti-dust protecting device described in embodiment one or two, fixed head 7 comprises the first horizontal part, vertical portion and the second horizontal part, and one end of the first horizontal part is connected with one end of vertical portion; The other end of described vertical portion is connected with one end of the second horizontal part.
Embodiment five, present embodiment are that the first horizontal part, vertical portion and the second horizontal part are integrated part to the further illustrating of a kind of photoelectric encoder code-disc anti-dust protecting device described in embodiment four.
The utility model is mainly made up of front side dust cover, rear side dust cover, front side dust cover working of plastics circular portion is concentric with photoelectric encoder code-disc, rear side dust cover working of plastics circular portion is concentric with photoelectric encoder code-disc, dust cover front side is connected by screw with rear side, and in the time that photoelectric encoder code-disc rotates and code-disc contactless.Code-disc is at stationary state and rotary state, and dust cover can be coordinated and effectively tiny dust is isolated in outside dust cover at machinery by front part and rear section.Simple and convenient on device technique of the present utility model, effectively extend serviceable life of photoelectric encoder.
Claims (5)
1. a photoelectric encoder code-disc anti-dust protecting device, is characterized in that, this device comprises front side dust cover (1), rear side dust cover (2), fixed screw (5), connecting screw group (6) and fixed head (7);
The end face of described front side dust cover (1) and rear side dust cover (2) is cylindrical shape, and the radius of the end face of front side dust cover (1) and rear side dust cover (2) is all greater than the radius of code-disc (3), and the radius of the end face of front side dust cover (1) and rear side dust cover (2) equates, the end face of side dust cover (1) and rear side dust cover (2) all coaxially arranges with code-disc body (3), and the center of rear side dust cover (2) has manhole, the radius of described manhole is greater than the radius of code-disc rotation axis (4), front side dust cover (1) and rear side dust cover (2) are buckled in respectively front side and the rear side of code-disc body (3), and front side dust cover (1) is fixedly connected with by connecting screw group (6) with rear side dust cover (2), the outside of rear side dust cover (2) end face is fixed with web member, described web member and rear side dust cover (2) are integrally formed part, fixed head (7) is vertically fixed on web member by fixed screw (5), the side of described front side dust cover (1) and rear side dust cover (2) all has exterior part clamping port, and front side dust cover (1) is corresponding with the card interface of the side of rear side dust cover (2).
2. a kind of photoelectric encoder code-disc anti-dust protecting device according to claim 1, is characterized in that, front side dust cover (1) and rear side dust cover (2) all adopt plastic dust cover.
3. a kind of photoelectric encoder code-disc anti-dust protecting device according to claim 1, is characterized in that, the distance between side dust cover (2) and code-disc rotation axis (4) is less than 0.5mm.
4. a kind of photoelectric encoder code-disc anti-dust protecting device according to claim 1, is characterized in that, fixed head (7) comprises the first horizontal part, vertical portion and the second horizontal part, and one end of the first horizontal part is connected with one end of vertical portion; The other end of described vertical portion is connected with one end of the second horizontal part.
5. a kind of photoelectric encoder code-disc anti-dust protecting device according to claim 4, is characterized in that, the first horizontal part, vertical portion and the second horizontal part are integrated part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420470428.8U CN203981198U (en) | 2014-08-20 | 2014-08-20 | A kind of photoelectric encoder code-disc anti-dust protecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420470428.8U CN203981198U (en) | 2014-08-20 | 2014-08-20 | A kind of photoelectric encoder code-disc anti-dust protecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203981198U true CN203981198U (en) | 2014-12-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420470428.8U Expired - Fee Related CN203981198U (en) | 2014-08-20 | 2014-08-20 | A kind of photoelectric encoder code-disc anti-dust protecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203981198U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107314781A (en) * | 2017-07-11 | 2017-11-03 | 南阳凯鑫光电股份有限公司 | Photoelectric encoder rotation protection device and photoelectric encoder code-disc |
| CN114563021A (en) * | 2022-03-10 | 2022-05-31 | 朝阳市加华电子有限公司 | Novel method and device for protecting code disc of photoelectric encoder |
-
2014
- 2014-08-20 CN CN201420470428.8U patent/CN203981198U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107314781A (en) * | 2017-07-11 | 2017-11-03 | 南阳凯鑫光电股份有限公司 | Photoelectric encoder rotation protection device and photoelectric encoder code-disc |
| CN107314781B (en) * | 2017-07-11 | 2020-08-21 | 南阳凯鑫光电股份有限公司 | Photoelectric encoder rotation protection device and photoelectric encoder code wheel |
| CN114563021A (en) * | 2022-03-10 | 2022-05-31 | 朝阳市加华电子有限公司 | Novel method and device for protecting code disc of photoelectric encoder |
| CN114563021B (en) * | 2022-03-10 | 2023-07-21 | 朝阳市加华电子有限公司 | Photoelectric encoder code wheel protection device |
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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: 20141203 Termination date: 20170820 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |