Encoder and motor suitable for same
阅读说明:本技术 编码器及其适用的马达 (Encoder and motor suitable for same ) 是由 王宏洲 蔡明典 于 2018-08-27 设计创作,主要内容包括:本公开涉及编码器及其适用的马达。该编码器包括承载盘、码盘、旋转轴、轴承、托架、壳体及感测组件。码盘设置于承载盘,旋转轴具有第一承靠部及第二承靠部,第一承靠部部分地穿设于承载盘。轴承具有轴承内环面及轴承外环面,轴承内环面与第二承靠部相连接。托架具有轴承承靠部及托架弧面特征部,轴承承靠部与轴承外环面相连接。壳体具有壳体弧面特征部与托架弧面特征部相连接。(The present disclosure relates to an encoder and a motor suitable for use therewith. The encoder comprises a bearing disc, a coded disc, a rotating shaft, a bearing, a bracket, a shell and a sensing assembly. The coded disc is arranged on the bearing disc, the rotating shaft is provided with a first bearing part and a second bearing part, and the first bearing part is partially arranged on the bearing disc in a penetrating mode. The bearing is provided with a bearing inner ring surface and a bearing outer ring surface, and the bearing inner ring surface is connected with the second bearing part. The bracket is provided with a bearing leaning part and a bracket cambered surface characteristic part, and the bearing leaning part is connected with the outer ring surface of the bearing. The housing has a housing arc feature connected to a bracket arc feature.)
1. An encoder, comprising:
a carrying tray;
the optical coded disc is arranged on the bearing disc;
a rotating shaft, which is provided with a first bearing part and a second bearing part, wherein the first bearing part is partially arranged on the bearing disc in a penetrating way;
a first bearing having a first bearing inner annular surface and a first bearing outer annular surface, the first bearing inner annular surface being connected to the second bearing abutment portion;
the bracket is provided with a bearing leaning part and a bracket cambered surface characteristic part, wherein the bearing leaning part is connected with the outer ring surface of the first bearing;
a shell with a shell cambered surface characteristic part, wherein the shell is connected with the bracket cambered surface characteristic part through the shell cambered surface characteristic part and is assembled with the bracket;
the circuit board is arranged on the shell and is opposite to the optical code disc; and
the optical sensing assembly is arranged on the circuit board and corresponds to the optical code disc so as to perform optical sensing on the optical code disc;
the bearing disc, the rotating shaft, the first bearing and the bracket are coaxially arranged by taking a rotating central shaft as an axis.
2. The encoder of claim 1, wherein the carrier plate has a carrier plate feature that is connected to the first bearing portion and assembled to the shaft via the carrier plate feature.
3. The encoder of claim 1, wherein the bracket contour is located at an inner edge of the housing contour.
4. The encoder of claim 1, wherein the bracket contour is located at an outer edge of the housing contour.
5. The encoder of claim 1, wherein the bracket-arc feature is a donut-shaped arc.
6. The encoder of claim 1, wherein the carriage arc feature is a plurality of arc segments.
7. The encoder of claim 1, further comprising a magnet disposed on the carrier disc, and a magnetic sensing element disposed on the circuit board and corresponding to the magnet for magnetically sensing the magnet.
8. The encoder of claim 7, wherein the center of the magnetic sensing element is located on the central axis of rotation.
9. The encoder of claim 7, wherein the center of the magnetic sensing assembly is disposed offset from the central axis of rotation.
10. The encoder of claim 1 wherein the optical code disc has at least one incremental pattern track having a plurality of incremental patterns arranged along a circumferential direction of the optical code disc.
11. The encoder according to claim 1, wherein the optical sensing assembly comprises a substrate, at least one light emitting element and at least one light receiving element, the substrate is disposed on the circuit board, the light receiving element is disposed on the substrate, and the light emitting element is disposed on the light receiving element.
12. The encoder of claim 1, further comprising a locking member disposed through the carrier plate and the rotating shaft, so that the carrier plate is fixed to the rotating shaft.
13. The encoder of claim 1, further comprising a locking member disposed through the circuit board, the housing and the bracket, thereby securing the circuit board and the housing to the bracket.
14. The encoder of claim 1, further comprising a second bearing having a second bearing inner annular surface and a second bearing outer annular surface, the second bearing inner annular surface being coupled to the second bearing abutment portion and the second bearing outer annular surface being coupled to the bearing abutment portion.
15. A motor, comprising:
an encoder, comprising:
a carrying tray;
the coded disc is arranged on the bearing disc;
a rotating shaft, which is provided with a first bearing part and a second bearing part, wherein the first bearing part is partially arranged on the bearing disc in a penetrating way;
a bearing having a bearing inner ring surface and a bearing outer ring surface, the bearing inner ring surface being connected to the second bearing seat portion;
the first bracket is provided with a bearing leaning part and a bracket cambered surface characteristic part, wherein the bearing leaning part is connected with the outer ring surface of the bearing;
a housing having a housing arc feature, the housing being connected to the bracket arc feature via the housing arc feature and being assembled with the first bracket;
the circuit board is arranged on the shell and is opposite to the coded disc; and
the sensing assembly is arranged on the circuit board and corresponds to the code disc so as to sense the code disc;
a motor bearing having a motor bearing inner annular surface and a motor bearing outer annular surface, the motor bearing inner annular surface being connected to the rotating shaft;
a second bracket connected to the outer circumferential surface of the motor bearing;
a frame connecting the first bracket and the second bracket;
a rotor part arranged on the frame body and sleeved on the rotating shaft; and
a stator part disposed on the frame and corresponding to the rotor part;
the bearing disc, the rotating shaft, the bearing, the first bracket, the motor bearing and the second bracket are coaxially arranged by taking a rotating central shaft as an axis.
Technical Field
The present invention relates to an encoder and a motor suitable for the encoder, and more particularly, to an encoder and a motor suitable for the encoder, in which a casing is assembled with a bracket by connecting a casing arc feature with a bracket arc feature.
Background
With the progress of science and technology, the encoder technology is widely applied to the field of control of precision instruments such as motor rotation speed measurement and position detection, including absolute encoders or incremental encoders, and can be used for detecting the rotation number, the rotation direction and the rotation position of a motor.
Generally, the main structure of the encoder includes a signal reading unit, a code wheel unit, a rotation shaft and a housing, wherein the signal reading unit is disposed corresponding to the code wheel unit to obtain a relevant position signal, and the signal reading unit, the code wheel unit, the rotation shaft and the housing are connected to each other through a plurality of fixing clamps, locking elements and supporting members for assembly.
However, since the number of components included in the conventional encoder is large, the components are complicated, and the assembly process is complicated. Moreover, the encoder is prone to be unable to achieve accurate assembly due to the deviation of any one of the components, and thus the obtained signal is unstable.
Therefore, how to develop a motor different from the conventional encoder and the motor suitable for the encoder to improve the problems and disadvantages in the prior art, which can be assembled quickly, easily and easily, and achieve precise assembly position relationship, thereby obtaining good signal quality is a key issue in the prior art.
Disclosure of Invention
It is a primary object of the present disclosure to provide an encoder and a motor adapted for the same, which solves and improves the problems and disadvantages of the prior art.
Another object of the present disclosure is to provide an encoder and a motor suitable for the encoder, in which the bracket arc feature of the bracket is assembled with the housing arc feature of the housing, so that the encoder can be assembled quickly, easily and conveniently, and the precise assembly position relationship can be achieved.
Another objective of the present disclosure is to provide an encoder and a motor suitable for the encoder, in which the bracket arc feature, the bearing leaning portion, the housing arc feature, the bearing disc arc feature and the rotating shaft are assembled together, so that the optical sensing assembly and the optical encoding disc have a relatively precise assembly position relationship, and a good signal quality is obtained.
Another object of the present disclosure is to provide an encoder and a motor suitable for the encoder, wherein the bracket has a bracket arc feature portion and a bearing leaning portion processed by the same workpiece, so that the bracket has substantially the same rotation center axis, and a good and stable signal output can be further obtained.
Another object of the present disclosure is to provide an encoder and a motor suitable for the same, which can obtain stable absolute position signals and incremental position signals by assembling the magnets and the magnetic sensing assembly and assembling the optical code disc and the optical sensing assembly at precise positions, thereby achieving high-precision absolute position sensing and obtaining high-precision absolute position information.
To achieve the above object, a preferred embodiment of the present disclosure provides an encoder including: a carrying tray; the optical coded disc is arranged on the bearing disc; the rotating shaft is provided with a first bearing part and a second bearing part, and the first bearing part is partially arranged on the bearing disc in a penetrating way; the first bearing is provided with a first bearing inner ring surface and a first bearing outer ring surface, and the first bearing inner ring surface is connected with the second bearing leaning part; the bracket is provided with a bearing leaning part and a bracket cambered surface characteristic part, wherein the bearing leaning part is connected with the outer ring surface of the first bearing; the shell is provided with a shell cambered surface characteristic part, and the shell is connected with the bracket cambered surface characteristic part through the shell cambered surface characteristic part and is assembled with the bracket; the circuit board is arranged on the shell and is opposite to the optical code disc; the optical sensing assembly is arranged on the circuit board and corresponds to the optical code disc so as to perform optical sensing on the optical code disc; the bearing disc, the rotating shaft, the first bearing and the bracket are coaxially arranged by taking a rotating central shaft as an axis.
To achieve the above object, another preferred embodiment of the present disclosure is to provide a motor including: an encoder, comprising: a carrying tray; the coded disc is arranged on the bearing disc; the rotating shaft is provided with a first bearing part and a second bearing part, and the first bearing part is partially arranged on the bearing disc in a penetrating way; the bearing is provided with a bearing inner ring surface and a bearing outer ring surface, and the bearing inner ring surface is connected with the second bearing part; the first bracket is provided with a bearing leaning part and a bracket cambered surface characteristic part, wherein the bearing leaning part is connected with the outer ring surface of the first bearing; the shell is provided with a shell cambered surface characteristic part, is connected with the bracket cambered surface characteristic part through the shell cambered surface characteristic part and is assembled with the first bracket; the circuit board is arranged on the shell and is opposite to the code disc; the sensing assembly is arranged on the circuit board and corresponds to the code disc so as to sense the code disc; a motor bearing having a motor bearing inner annular surface and a motor bearing outer annular surface, the motor bearing inner annular surface being connected to the rotating shaft; a second bracket connected with the outer ring surface of the motor bearing; a frame body connecting the first bracket and the second bracket; a rotor part arranged on the frame body and sleeved on the rotating shaft; and a stator part disposed on the frame and corresponding to the rotor part; the bearing disc, the rotating shaft, the bearing, the first bracket, the motor bearing and the second bracket are coaxially arranged by taking a rotating central shaft as an axis.
Drawings
Fig. 1 is a schematic sectional structure diagram showing an encoder according to a preferred embodiment of the present disclosure.
Fig. 2 is a schematic sectional exploded view showing an encoder according to a preferred embodiment of the present disclosure.
Fig. 3 is a partial structural schematic diagram of an encoder showing another preferred embodiment of the present disclosure.
Fig. 4 is a schematic view showing the structure of the rotary shaft and the bracket of the encoder according to the preferred embodiment of the present disclosure.
Fig. 5 is a schematic sectional view showing an encoder according to another preferred embodiment of the present disclosure.
Fig. 6 is a schematic sectional view showing a motor to which an encoder according to a preferred embodiment of the present disclosure is applied.
Description of reference numerals:
1: encoder for encoding a video signal
10: bearing plate
101: bearing disc cambered surface characteristic part
11: optical code disc
12: rotating shaft
121: the first bearing part
122: second bearing part
13: first bearing
131: inner ring surface of first bearing
132: outer ring surface of first bearing
14: bracket
141: bearing support part
142: bracket cambered surface characteristic
15: shell body
151: cambered surface feature of housing
16: circuit board
17: optical sensing assembly
170: base material
171: light emitting element
172: light collecting element
18: magnet
19: magnetic sensing assembly
2: first locking part
3: second locking part
4: second bearing
41: inner ring surface of second bearing
42: outer ring surface of second bearing
5: motor with a stator having a stator core
6: motor bearing
61: inner ring surface of motor bearing
62: outer ring surface of motor bearing
7: second bracket
8: frame body
80: rotor part
81: stator part
A: rotating central shaft
Detailed Description
Some exemplary embodiments that incorporate the features and advantages of the present disclosure will be described in detail in the specification which follows. It is to be understood that the disclosure is capable of various modifications in various embodiments without departing from the scope of the disclosure, and that the description and drawings are to be regarded as illustrative in nature, and not as restrictive.
Referring to fig. 1, 2, 3 and 4, fig. 1 is a schematic sectional view illustrating an encoder according to a preferred embodiment of the present disclosure, fig. 2 is a schematic sectional view illustrating an exploded structure of an encoder according to a preferred embodiment of the present disclosure, fig. 3 is a schematic partial structure illustrating an encoder according to another preferred embodiment of the present disclosure, and fig. 4 is a schematic structural view illustrating a rotating shaft and a bracket of an encoder according to a preferred embodiment of the present disclosure. As shown in fig. 1, 2, 3 and 4, an
The
In some embodiments, the
In some embodiments, as shown in FIG. 1, the
In other words, the encoder of the present disclosure can be assembled with the housing arc feature of the housing through the bracket arc feature of the bracket, so that the encoder can be assembled quickly, easily and easily, and can achieve an accurate assembly position relationship to complete positioning and limiting. Moreover, the optical sensing assembly and the optical code disc can have relatively accurate assembly position relation through the assembly among the bracket cambered surface characteristic part, the bearing leaning part, the shell cambered surface characteristic part, the bearing disc cambered surface characteristic part and the rotating shaft, and further good signal quality is obtained. Meanwhile, the bracket cambered surface characteristic part and the bearing leaning part of the bracket are processed by the same workpiece, so that the bracket has the rotation central shaft which is basically the same, and good and stable signal output can be further obtained. Based on the above combination, the whole structure can be further strengthened.
In some embodiments, the
In some embodiments, the center of the
In some embodiments, the center of the
In some embodiments, the
In some embodiments, the
The
In other words, the encoder of the present disclosure can obtain stable absolute position signals and incremental position signals by accurately assembling the magnets and the magnetic sensing elements and the optical code disc and the optical sensing elements, thereby achieving high-precision absolute position sensing and obtaining high-precision absolute position information.
In some embodiments, the
Referring to fig. 1, fig. 2 and fig. 5, fig. 5 is a schematic cross-sectional structure diagram of an encoder according to another preferred embodiment of the present disclosure. As shown in fig. 1, 2 and 5, in some embodiments, the
Referring to fig. 1, fig. 2 and fig. 6, fig. 6 is a schematic cross-sectional view of a motor suitable for an encoder according to a preferred embodiment of the present disclosure. As shown in fig. 1, 2, and 6, the
The
In summary, the present disclosure provides an encoder and a motor suitable for the encoder, in which the bracket arc feature of the bracket is assembled with the housing arc feature of the housing, so that the encoder can be assembled quickly, easily and conveniently, and the precise assembly position relationship can be achieved. Moreover, the optical sensing assembly and the optical code disc can have relatively accurate assembly position relation through the assembly among the bracket cambered surface characteristic part, the bearing leaning part, the shell cambered surface characteristic part, the bearing disc cambered surface characteristic part and the rotating shaft, and further good signal quality is obtained. And because the bracket cambered surface characteristic part and the bearing leaning part of the bracket are processed by the same workpiece, the bracket has the rotation central shafts which are basically the same, and good and stable signal output can be further obtained. Meanwhile, stable absolute position signals and incremental position signals can be obtained through the accurate assembly of the magnets and the magnetic sensing assembly and the accurate assembly of the optical code disc and the optical sensing assembly, so that high-precision absolute position sensing is realized, and high-precision absolute position information is obtained.
Although the present disclosure has been described in detail with respect to the above-described embodiments, it will be apparent to those skilled in the art that various modifications can be made therein without departing from the scope of the disclosure as defined in the appended claims.
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