CN201975920U - Encoder - Google Patents
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- Publication number
- CN201975920U CN201975920U CN2010206206325U CN201020620632U CN201975920U CN 201975920 U CN201975920 U CN 201975920U CN 2010206206325 U CN2010206206325 U CN 2010206206325U CN 201020620632 U CN201020620632 U CN 201020620632U CN 201975920 U CN201975920 U CN 201975920U
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- CN
- China
- Prior art keywords
- axle
- encoder
- cap
- shaft
- axle cap
- 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
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- Transmission And Conversion Of Sensor Element Output (AREA)
- Optical Transform (AREA)
Abstract
The utility model relates to an encoder arranged on a servomotor shaft, which is in following structure: wherein the encoder and a shaft cap on one end of the servomotor shaft are in disc type, the internal wall of one end of the shaft bonding the shaft cap is designed to have stepped appearance correspondently, the shaft cap is flatly arranged on the step, the contact part of the shaft cap and the step is spliced and fixed with UV glue, and a slit between the upper surface of the shaft cap and the shaft wall is sealed with the UV glue. The utility model effectively solves the problem in that the oil overflowed from high speed rotating servomotor can cause bad effect to performance and service life of the encoder, and has advantages of simple structure and low cost, and can effectively guarantee high reliability on quality of the encoder.
Description
Technical field
The utility model relates to the encoder of the rotation direction, speed and the residing position of motor reel that are used to detect servomotor.
Background technology
The employed encoder of servomotor is installed on the axle of servomotor.The axial region of servomotor is for the lubricated grease that scribbles, during high speed rotating, grease may overflow from axle and invade in the encoder, is infected with on the electronic component of the original screen panel of encoder or substrate, cause component capabilities bad, caused encoder instability quality problem.In addition, in the high speed rotating of servomotor, other foreign matters also might be invaded to encoder from axle, cause above-mentioned quality problem.
The influence that grease or other foreign matters are invaded encoder mainly contains 2 points: the first, and grease or other foreign matters be attached on light-emitting diode, photodiode, the original screen panel, may influence the stopping and reflect of light, and causes the output signal of encoder inaccurate; The second, if grease or other foreign matters attached on the substrate, can cause the performance of the electronic component on the substrate and useful life to descend.
In order to address the above problem, existing technological means is, installs additional in a side of the axle of encoder and servomotor assembling
The profile shaft cap is implemented sealing to the encoder axle, invades to encoder inside to prevent grease or other foreign matters.
Fig. 3 is the section of structure of encoder of first conventional example of the above-mentioned prior art of expression.Among Fig. 3, axle cap 7 covers the end at axle 2, and axle 2 is embedded the recessed side of axle caps 7, the contacted position, recessed bottom surface of axle and axle cap make be glued fixing.
But, in the process of axle shown in Figure 3 and the assembling of axle cap, because glue is the bottom edge that is coated on a recessed end of axle cap, in case axle cap and axial compression are closed, how the state of the glue of axle cap inboard is can't be observed, the state of glue was not visible after promptly axle was assembled with axle cap, and the sealing effectiveness of axle may be affected, and can not eliminate allotrylic hidden danger such as grease fully.
In addition, axle cap shown in Figure 3 is that stainless steel material is made, and shape is special, processing and installation exercise difficulty, and manufacturing cost is than higher.And, owing to must use 601M glue to carry out bonding between the axle of the axle cap of stainless steel and stainless steel, and the more general thread locking glue of the drying of 601M glue longer (temperature is 75 when spending, dry 30 minutes=1800 seconds) consuming time, so that the time lengthening of the installation exercise of axle cap.
The utility model content
Encoder of the present utility model has following structure.The utility model comprises cradle portion, and this cradle portion has support and is pressed into the bearing of support inboard.In addition, encoder of the present utility model comprises axial region, and this axial region has axle, be fixed in the axle cap of inboard, top of axle of bearing, bearing top at the middle part of axle along axis direction.Be fixed on the axle being pressed into cradle portion below the bearing along axis direction, form as one with axial region; In addition, encoder of the present utility model comprises: original screen panel is being fixedly mounted on glue above the bearing on the installed surface of axle along axis direction; Substrate after the axle side, original screen panel above is screwed rack-mount along axis direction in the axle cap pressing and fixing.
In addition, the axle cap on one side top of axle is a rondelle, the internal perisporium matching design of one end of fixing axle is a stairstepping, axle cap is flat on the ladder of an internal perisporium, and the inwall contact portion of axle cap and axle adds and is coated with that UV is gluing to be connect and fix, and axle cap is pressed on after the inboard, UV glue utilizes the slit between axle cap edge and the axial wall to be spilled over to the axle cap upper surface, and form a ring-type UV gel coating, not only formed the enclosed construction of axle, and made the coating status visualization of glue.
In addition, the rondelle axle cap shape that the utility model uses is common, simple in structure, uses mould simply to process, and manufacturing process is simplified greatly.
In addition, the material of axle cap uses resin or rubber, and is cheap, between axle cap and the axle use UV gluing connect fixing.Only need ten seconds the drying time of UV glue, the time decreased 99.4% of installation exercise, and also installation process is greatly simplified.
Description of drawings
Fig. 1 is the section of structure of the encoder of the utility model execution mode.
Fig. 2 is the encoder of expression the utility model execution mode and the section of structure of servomotor aggregate erection.
Fig. 3 is the section of structure of the encoder of expression first conventional example.
Embodiment
With reference to the accompanying drawings execution mode of the present utility model is described.
Fig. 1 is the section of structure of the encoder of expression the utility model execution mode.Fig. 2 is the encoder of expression the utility model execution mode and the section of structure of servomotor aggregate erection.
At first, use Fig. 1 that the basic structure of the encoder of present embodiment is described.Among Fig. 1, the encoder of utility model comprises cradle portion 5, and this cradle portion 5 has support and is fixed in the bearing 6 of support inboard.In addition, encoder of the present utility model comprises axial region, and this axial region has axle 2, be fixed in the axle cap 1 of inboard, top of axle of bearing, bearing top at the middle part of axle along axis direction.Axle cap is a rondelle, and the internal perisporium matching design of an end of fixing axle is a stairstepping.Cradle portion is fixed on the axle below the bearing of axle along axis direction, forms as one with axial region; In addition, encoder of the present utility model comprises: original screen panel 4, along axis direction in the upper fixed of bearing on axle; Substrate 3, in the axle cap pressing and fixing after the axle side, along axis direction in the upper fixed of original screen panel on axle.
Below, the encoder of present embodiment is described in more details.
Among Fig. 1, cradle portion is fixed on the support inboard and forms as one by bearing is pressed into.Axial region has axle 2 and is fixed on the axle cap 1 of this inboard, top, 2 top.New axle cap uses resin or elastomeric material, is processed as rondelle with the mould injecting glue.Fixedly internal perisporium matching design, the cut of an end of the axle of axle cap are stairstepping.Axle cap is flat on the ladder of an internal perisporium, uses UV glue around one week of edge gap coating in the axle inboard.After the coating of UV glue, use UV lamp (ultraviolet ray) irradiation, make UV glue drying.Coating and dried UV glue form the UV gel coating of a ring-type along the wall edge between the upper epidermis of axle cap and axial wall, form the closed structure of an end of axle.
The utility model be applicable to rotation direction, speed and the motor reel present position of detecting servomotor, high reliability and the cheap encoder of parts.
Claims (3)
1. an encoder that is used for servomotor comprises: cradle portion, the bearing that it has support and is fixed on the support inboard; Axial region, its have axle, along axis direction be fixed in the middle part of axle bearing, be fixed in the axle cap of inboard, top, top of axle; Original screen panel is fixed on the top of bearing along axis direction; Substrate is fixed on the top of original screen panel along axis direction; It is characterized in that:
Axle cap is a rondelle, the internal perisporium matching design of one end of fixing axle is a stairstepping, axle cap is flat on the ladder of an internal perisporium, and the slit full-filling UV between axle inboard and the axle cap of axle cap wall edge is gluing to be connect fixingly, and the slit full-filling UV glue between axle cap upper surface and the axial wall is realized the sealing of axle.
2. encoder as claimed in claim 1 is characterized in that, the material of the rondelle axle cap that its described encoder adopts is a resin.
3. encoder as claimed in claim 1 is characterized in that, the material of the rondelle axle cap that its described encoder adopts is a rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206206325U CN201975920U (en) | 2010-11-16 | 2010-11-16 | Encoder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206206325U CN201975920U (en) | 2010-11-16 | 2010-11-16 | Encoder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201975920U true CN201975920U (en) | 2011-09-14 |
Family
ID=44581017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206206325U Expired - Lifetime CN201975920U (en) | 2010-11-16 | 2010-11-16 | Encoder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201975920U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102729086A (en) * | 2012-06-14 | 2012-10-17 | 常州市科普特佳顺机床附件有限公司 | Coder installation structure of rotary oil cylinder and rotary oil cylinder using same |
| CN103808336A (en) * | 2012-11-13 | 2014-05-21 | 长春荣德光学有限公司 | Bearingless split servo motor encoder |
-
2010
- 2010-11-16 CN CN2010206206325U patent/CN201975920U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102729086A (en) * | 2012-06-14 | 2012-10-17 | 常州市科普特佳顺机床附件有限公司 | Coder installation structure of rotary oil cylinder and rotary oil cylinder using same |
| CN102729086B (en) * | 2012-06-14 | 2015-12-30 | 常州市科普特佳顺机床附件有限公司 | The structure of installing encoders of angling cylinder and the angling cylinder of application thereof |
| CN103808336A (en) * | 2012-11-13 | 2014-05-21 | 长春荣德光学有限公司 | Bearingless split servo motor encoder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110914 |
|
| CX01 | Expiry of patent term |