CN208383071U - A kind of grating ruler reading head pulley - Google Patents
A kind of grating ruler reading head pulley Download PDFInfo
- Publication number
- CN208383071U CN208383071U CN201820917446.4U CN201820917446U CN208383071U CN 208383071 U CN208383071 U CN 208383071U CN 201820917446 U CN201820917446 U CN 201820917446U CN 208383071 U CN208383071 U CN 208383071U
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- Prior art keywords
- reading head
- bearing
- head pulley
- boss
- grating ruler
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Abstract
The utility model discloses a kind of grating ruler reading head pulleys, including coaster main body, bearing and bearing fixing rod；Boss and short slot are provided in the coaster main body.Boss puts the process of gasket when reducing assembling to simplify its packaging technology, to reduce labour costs, raising production efficiency, while guaranteeing the smooth rolling of bearing, i.e., the operation of guarantee grating ruler reading head pulley is reliable；Short slot reduces punching depth at this, and then reduce the degree of eccentricity in hole at this, guarantee scale grating delineation three centerline hole of face in parallel and in the same plane, to improve the qualification rate of product, it reduces the weight of coaster simultaneously and reduces friction, to extend the service life of reading head pulley.
Description
Technical field
The utility model relates to the structures of grating ruler reading head pulley.
Background technique
Grating rule displacement sensor is widely used in various lathes, electromechanical equipment, in automation equipment.Grating scale displacement passes
Slipper is widely used five reliability and durability bearing arrangement coasters between the reading head and scale grating of sensor, i.e., and wherein 3
Bearing is rolled along scale grating delineation face, and 2 bearings are rolled along the side of scale grating, is made between coaster and scale grating in phase
To holding in sliding process there are five contact point, guarantee that reading head can steadily smoothly slide in scale grating relatively.But it is existing
Have to need to survey inside when bearing is installed in technology and increase gasket to guarantee its smooth rolling, not only increases labour cost, also make
Production technology complicates, and also reduces the production efficiency of product.
Utility model content
In view of the deficienciess of the prior art, the purpose of the utility model is to provide a kind of reduction labour cost, simplifying life
Production. art, the grating ruler reading head pulley for improving production efficiency, prolonging the service life.
To achieve the goals above, the utility model is realized by the following technical solutions: a kind of grating ruler reading head
Coaster, structure include coaster main body, bearing, bearing fixing rod, and the bearing is mounted in coaster main body through bearing fixing rod,
Bearing has three along scale grating delineation face rolling and two along the rolling of scale grating side；Coaster main body installs bearing
Place is provided with boss, while coaster main body is provided with a short slot.
Further, the diameter of the bearing is identical.
Further, there is screw thread in described bearing fixing rod one end, and the other end is provided with cross recess.
Further, the bearing fixing rod and the bearing inner race are interference fitted.
Further, the bearing fixing rod is connect with the coaster main body screw.
Further, the boss height is higher than the difference of the height of bearing internal external circle one end.
Further, the boss radial section circumscribed circle is between the bearing internal external circle.
Further, the shape of the boss radial section is center symmetric figure.
Further, wide 3 ~ 7mm of position of the short slot.
A kind of grating ruler reading head pulley of the utility model, coaster main body are provided with boss and short slot, boss in structure
The process of gasket is put when reducing assembling to simplify its packaging technology, to reduce labour costs, raising production efficiency, is protected simultaneously
Demonstrate,prove the smooth rolling of bearing；Short slot reduces punching depth at this, and then reduces the degree of eccentricity in hole at this, guarantees that scale grating delineates face
Three centerline holes in parallel and in the same plane, to improve the qualification rate of product, while reducing the weight of coaster and reducing and rub
It wipes, to extend the service life of reading head pulley；Bearing fixing rod and bearing inner race interference fit, boss height are higher than bearing
The difference of the height of Internal and external cycle one end, boss radial section circumscribed circle are between bearing internal external circle and the shape of boss radial section
Shape is that center symmetric figure guarantees its reliability of operation.
Detailed description of the invention
Fig. 1 is the utility model bearing fixing rod；
The left view of Fig. 2 bitmap 1.
Fig. 3 is the utility model reading head pulley main view.
Fig. 4 is the utility model reading head pulley top view.
Fig. 5 the utility model boss structure cross-sectional view.
Fig. 6 is the utility model boss structure schematic diagram one.
The position Fig. 7 the utility model boss structure schematic diagram two.
In figure: coaster main body -1, bearing -2, bearing fixing rod -3, bearing fixing rod thread segment -31, bearing fixing rod ten
Word slot section -32, bearing fixing rod middle section -33, boss -4, first boss -40, second boss -41, third boss the -42, the 4th are convex
Platform -43, the 5th boss -44, short slot -5.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Please refer to Fig. 1~7, in the utility model embodiment, a grating ruler reading head pulley, including coaster main body 1, bearing
2 and bearing fixing rod 3；Boss 4 is provided in the coaster main body 1,2 diameter of bearing is identical, and the bearing fixing rod 3 wraps
Include bearing fixing rod thread segment 31, bearing fixing rod cross recess section 32, bearing fixing rod middle section 33；The bearing fixing rod middle section
33 are interference fitted with 2 inner ring of bearing, and bearing 2 is fixed on the boss 4 of coaster main body 1 by the bearing fixing rod 3, the boss
4 height is higher than the difference of 2 Internal and external cycle one end height of bearing, and the radial section circumscribed circle of the boss 4 is between the bearing 2
Between Internal and external cycle, the shape of 4 radial section of boss is center symmetric figure, 3 ~ 7mm of position of the short slot 5, the short slot 5
It is corresponding with the 4th boss 43.
Grating ruler reading head pulley main body 1 is provided with boss 4, puts the process of gasket when reducing assembling to simplify its assembling
Technique, to reduce labor cost, to improve the production efficiency of product；Guarantee the smooth rolling of bearing, i.e. guarantee light simultaneously
Grid ruler reading head pulley reliability of operation；Coaster main body 1 is provided with short slot 5, and short slot 5, which reduces, punches depth at this, and then subtracts
The degree of eccentricity in small hole at this guarantees scale grating delineation three centerline hole of face in parallel and in the same plane, to improve product
Qualification rate, while reducing the weight of coaster and reducing friction, reduce frictional dissipation and extend the service life of reading head pulley.
Claims (9)
1. a kind of grating ruler reading head pulley, including coaster main body (1), bearing (2) and bearing fixing rod (3)；It is characterized by:
It is provided with boss (4) on the coaster main body (1), is provided with short slot (5) on the coaster main body (1).
2. grating ruler reading head pulley according to claim 1, it is characterised in that: the boss (4) is highly higher than the axis
Hold the difference of the height of (2) Internal and external cycle one end.
3. grating ruler reading head pulley according to claim 1, it is characterised in that: boss (4) the radial section circumscribed circle
Between the bearing (2) Internal and external cycle.
4. grating ruler reading head pulley according to claim 1, it is characterised in that: the shape of boss (4) radial section
For center symmetric figure.
5. grating ruler reading head pulley according to claim 1, it is characterised in that: the bearing fixing rod (3) includes bearing
Fixed link thread segment (31), bearing fixing rod cross recess section (32) and bearing fixing rod middle section (33).
6. grating ruler reading head pulley according to claim 1, it is characterised in that: the bearing fixing rod middle section (33) and institute
State bearing (2) inner ring interference fit.
7. grating ruler reading head pulley according to claim 1, it is characterised in that: the bearing fixing rod (3) is by the axis
It holds at the boss (4) (2) being fixed on coaster main body (1).
8. grating ruler reading head pulley according to claim 1, it is characterised in that: wide 3 ~ 7mm of position of the short slot (5).
9. grating ruler reading head pulley according to claim 1, it is characterised in that: it has the 4th boss (43), and the 4th is convex
Platform (43) is corresponding with short slot (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820917446.4U CN208383071U (en) | 2018-06-14 | 2018-06-14 | A kind of grating ruler reading head pulley |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820917446.4U CN208383071U (en) | 2018-06-14 | 2018-06-14 | A kind of grating ruler reading head pulley |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208383071U true CN208383071U (en) | 2019-01-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820917446.4U Active CN208383071U (en) | 2018-06-14 | 2018-06-14 | A kind of grating ruler reading head pulley |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208383071U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111623710A (en) * | 2020-04-21 | 2020-09-04 | 广州市信诺光栅数显有限公司 | Grating ruler reading head pulley based on high-strength high-modulus fiber material |
-
2018
- 2018-06-14 CN CN201820917446.4U patent/CN208383071U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111623710A (en) * | 2020-04-21 | 2020-09-04 | 广州市信诺光栅数显有限公司 | Grating ruler reading head pulley based on high-strength high-modulus fiber material |
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