CN208187419U - A kind of multi-turn absolute value encoder - Google Patents
A kind of multi-turn absolute value encoder Download PDFInfo
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- CN208187419U CN208187419U CN201820879669.6U CN201820879669U CN208187419U CN 208187419 U CN208187419 U CN 208187419U CN 201820879669 U CN201820879669 U CN 201820879669U CN 208187419 U CN208187419 U CN 208187419U
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- magnet
- main shaft
- sensor chip
- encoder
- gear
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Abstract
The utility model relates to a kind of multi-turn absolute value encoder, including support base, encoder main shaft, the first magnet, gear-box, the encoder main shaft is mutually pivotally connected by bearing or axle sleeve class component with support base；The encoder main shaft passes through the input axis connection of the first magnet and the gear-box, first magnet is fixedly arranged on main shaft, and first magnet is placed in the support base, first sensor chip is provided with below first magnet, and the first sensor chip is placed in the outside of encoder main shaft；It is provided with the second magnet on the output shaft of the gear-box, is provided with second sensor chip below second magnet.The technical solution of the utility model provides a kind of multi-turn absolute value encoder, and structure is simple, and precision is high, and low manufacture cost, inside increases Magnet clamp, can effectively reduce the interference problem of internal signal.
Description
Technical field
The utility model relates to a kind of technical field of encoder more particularly to a kind of multi-turn absolute value encoder structures.
Background technique
Encoder is a kind of sensor for measuring mechanical displacement, by the way that the angular displacement or straight-line displacement of machinery rotation are converted
It is the mechanical accurate measurement device combined closely with electronics at the device of electric signal, it is former by photovoltaic principals or the second magnet
One mechanical geometric displacement amount is converted to electronic signal pulse signal or serial data by reason.
With the development of science and technology encoder is suitable for the machinery of various complexity, corresponding encoder shafting precision is wanted
It asks higher and higher, needs using multi-turn absolute value encoder, the main shaft of multi-turn absolute value encoder is using transmission on existing market
Mode is connect with gear-box, and structure is complicated for this multi-turn absolute value encoder, and volume is big, and there are internal signal serious interference,
Manufacture the problems such as at high cost.
Utility model content
Technical problem to be solved in the utility model is how to provide a kind of multi-turn absolute value encoder, small in size, knot
Structure is simple, and precision is high, and low manufacture cost, inside increases Magnet clamp, can effectively reduce the interference problem of internal signal.
The technical solution that the utility model solves above-mentioned technical problem is as follows:
A kind of multi-turn absolute value encoder, including support base, encoder main shaft, the first magnet, gear-box, the encoder
Main shaft is mutually pivotally connected by bearing or axle sleeve class component with support base；
The encoder main shaft passes through the input axis connection of the first magnet and the gear-box, and first magnet is fixedly arranged on
On main shaft, and first magnet is placed in the support base, is provided with first sensor chip below first magnet,
And the first sensor chip is placed in the outside of encoder main shaft；
It is provided with the second magnet on the output shaft of the gear-box, is provided with second sensor core below second magnet
Piece.
Compared with prior art, the utility model has the beneficial effects that the utility model product encoder main shaft passes through the
The direct-connected gear-box of one magnet changes the main shaft and gearbox drive connection type of original encoder, effectively simplifies original
The mechanical structure of encoder, reduces volume, reduces production cost.
Based on the above technical solution, the utility model can also do following improvement:
Further, Magnet clamp is covered with outside second magnet and second sensor chip.
Beneficial effect using above-mentioned further scheme is: increasing magnetic cup between each other in internal sensor chip and magnet
Set is covered, the signal interference problem between original decoder internal sensor chip and magnet is improved, effectively increases encoder
Available accuracy.
Further, first magnet is installed on main shaft by the first magnetic receiver.
Beneficial effect using above-mentioned further scheme is: fixing the first magnet in encoder main shaft by the first magnetic receiver
On, when main axis, drive the first magnet rotors.
Further, second magnet is arranged on the output shaft of gear-box by the second magnetic receiver.
Beneficial effect using above-mentioned further scheme is: fixing the second magnet in the defeated of gear-box by the second magnetic receiver
On shaft.
Further, further include the first pcb board being placed under the first magnet, the main shaft pass through the first pcb board with it is described
The input axis connection of gear-box, the first sensor chip are fixed on the first pcb board, set the first sensor chip
In the lower section of first magnet, and first pcb board is fixedly arranged on the lower end surface of support base by nut.
Beneficial effect using above-mentioned further scheme is: by the fixed first sensor chip of the first pcb board, making first
Sensor chip is placed in the angle of the lower section detection main axis of the first magnet.And first sensor chip is placed in encoder main shaft
Outside.
It further, further include the second pcb board being set under the second magnet, second pcb board is fixedly arranged on the tooth
On the output shaft of roller box, the second sensor chip is fixed on the second pcb board, and the second sensor chip is made to be placed in institute
State the lower section of the second magnet.
Beneficial effect using above-mentioned further scheme is: by the fixed second sensor chip of the second pcb board, making second
Sensor chip is placed in the lower section of the second magnet, and second sensor chip is placed in the outside of gearbox output shaft.Pass through gear
For one stable drive ratio of case to rear stage second sensor chip, second sensor chip detects the magnetic field turning collar of second magnet
Number.
It further, further include the shell covered at outside each device.
Beneficial effect using above-mentioned further scheme is: the internal each device of protection avoids the interference of external environment and breaks
It is bad.
Detailed description of the invention
Fig. 1 is the utility model product structure explosive view；
Fig. 2 is the utility model product schematic cross-sectional view.
In attached drawing, parts list represented by the reference numerals are as follows:
1, encoder main shaft, 2, bearing, 3, support base, the 4, first magnetic receiver, the 5, first magnet, the 6, first pcb board, 7, spiral shell
Mother, 8, gear-box, the 9, second magnetic receiver, the 10, second magnet, the 11, second pcb board, 12, Magnet clamp, 13, shell.
Specific embodiment
The principles of the present invention and feature are described below in conjunction with attached drawing, example is served only for explaining that this is practical
It is novel, it is not intended to limit the scope of the utility model.
As shown in Figure 1, a kind of multi-turn absolute value encoder, which is characterized in that including support base 3, encoder main shaft 1,
One magnet 5, gear-box 8, the encoder main shaft 1 are mutually pivotally connected by bearing 2 or axle sleeve class component and support base 3；
The encoder main shaft 1 passes through the input axis connection of the first magnet 5 and the gear-box 8, and first magnet 5 is solid
On encoder main shaft 1, and first magnet 5 is placed in the support base 3, and the lower section of first magnet 5 is provided with
First sensor chip (not shown go out), and the first sensor chip is placed in the outside of encoder main shaft 1；
It is provided with the second magnet 10 on the output shaft of the gear-box 8, is provided with the second biography below second magnet 10
Sensor chip (not shown go out).
In the utility model product, encoder main shaft 1 is mutually pivotally connected by bearing 2 and support base 3, or passes through shaft sleeve
Element and support base 3 are mutually pivotally connected.First magnet 5 is circular ring magnet, horseshoe magnet or bar magnet.Encoder master
Axis 1 passes through the direct-connected gear-box 8 of the first magnet 5, is effectively simplified the machinery that original encoder main shaft 1 is sequentially connected with gear-box 8
Structure reduces volume, reduces production cost.By being set to the first sensor chip of 5 lower section of the first magnet, detection first
The magnetic core logical circuit deflection angle of magnet 5 measures the rotational angle of encoder main shaft 1.It is passed by gear-box 8, the second magnet 10 and second
Sensor chip realizes that encoder is absolute value output in a fixing turn, the encoder for the upper first sensor chip measurement that adds up
The rotational angle of 1 exact position of main shaft is the exact shift of object to be measured.Can choose has 14 or 15 bit resolutions
First sensor chip and second sensor chip with 14 or 15 bit resolutions.
Preferably, Magnet clamp 12 is covered with outside second magnet 10 and second sensor chip.In internal sensor
Device chip increases Magnet clamp 12 between each other, and the signal interference improved between original decoder internal sensor chip is asked
Topic, effectively increases the available accuracy of encoder.
Preferably, first magnet 5 is installed on encoder main shaft 1 by the first magnetic receiver 4.
Preferably, second magnet 10 is arranged on the output shaft of gear-box 8 by the second magnetic receiver 9.
It preferably, further include the first pcb board 6 being placed under the first magnet 5, the encoder main shaft 1 passes through the first pcb board
6 are fixed on the first pcb board 6 with the input axis connection of the gear-box 8, the first sensor chip, make described first to pass
Sensor chip is placed in the lower section of first magnet 5, and first pcb board 6 is fixedly arranged on the lower end of support base 3 by nut 7
Face.
It preferably, further include the second pcb board 11 being set under the second magnet 10, second pcb board 11 is fixedly arranged on institute
On the output shaft for stating gear-box 8, the second sensor chip is fixed on the second pcb board 11, makes the second sensor core
Piece is placed in the lower section of second magnet 10.
It preferably, further include the shell 13 covered at outside each device.
As shown in Fig. 2, the encoder main shaft 1 passes through axle sleeve class component and support in the preferred embodiment in the utility model
The mutually pivot joint of seat 3, the encoder main shaft 1 passes through the first magnet 5 and the input shaft of the first pcb board 6 and the gear-box 8 connects
It connects, the first magnet 5 is fixedly arranged on encoder main shaft 1 by the first magnetic receiver 4, is placed in support base 3, first sensor chip
It is fixed on the lower section that the first magnet 5 is placed on the first pcb board 6, and first sensor chip is placed in the outer of encoder main shaft 1
Side, the first pcb board 6 are fixedly arranged on the lower end surface of support base 3 by nut 7, and the second magnetic receiver 9 for being mounted with the second magnet 10 is fixed
Second is fixed in fixed second pcb board 11, second sensor chip on the output shaft of gear-box 8,8 output shaft of gear-box
On pcb board 11, second sensor chip is made to be placed in the lower section of the second magnet 10.Second magnet 10, the second magnetic receiver 9 and
It is covered with Magnet clamp 12 outside second sensor chip, shell 13 is also covered with outside above-mentioned each device for protecting each device.
First sensor chip is equipped with below first magnet 5, encoder main shaft 1 is fixedly connected with object to be measured,
Object to be measured drives encoder main shaft 1 to rotate, while driving the first magnet 5 rotation on encoder main shaft 1, in the first magnetic
First sensor chip is equipped with below iron 5, the magnetic core logical circuit deflection angle that first sensor chip detects first magnet 5 is converted to electricity
Signal output, realizes the detection of 1 exact position of encoder main shaft, i.e. single rotation angle, drives additionally by encoder main shaft 1
Decoder internal gear-box 8 rotates, and is output to the second magnetic receiver 9 after slowing down by gear-box 8, and the second magnetic receiver 9 is mounted with the
Two magnet 10 drive the rotation of the second magnet 10, have second sensor chip, the inspection of second sensor chip in the second magnet 10
The magnetic field turnning circle for surveying second magnet 10 changes into electric signal output, realizes that encoder is that absolute value is defeated in a fixing turn
Out, i.e., the corresponding fixed digital information in each position, calculates the circle number of encoder main axis, and add up upper first biography
The detection (1 single rotation angle of encoder main shaft) of 1 exact position of encoder main shaft of sensor chip measurement, is object to be measured
The exact shift of body.
In addition, being covered with Magnet clamp 12, magnetic outside the second magnet 10, the second magnetic receiver 9 and second sensor chip
Housing 12 is for shielding the second magnet 10 and the first magnet 5 between each other and first sensor chip and second sensor core
The mutual interference of piece improves measurement accuracy.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all practical at this
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (7)
1. a kind of multi-turn absolute value encoder, which is characterized in that including support base (3), encoder main shaft (1), the first magnet
(5), gear-box (8), the encoder main shaft (1) are mutually pivotally connected by bearing (2) or axle sleeve class component and support base (3)；
The encoder main shaft (1) passes through the input axis connection of the first magnet (5) and the gear-box (8), first magnet
(5) it is fixedly arranged on main shaft, and first magnet (5) is placed in the support base (3), is set below first magnet (5)
It is equipped with first sensor chip, and the first sensor chip is placed in the outside of encoder main shaft (1)；
It is provided with the second magnet (10) on the output shaft of the gear-box (8), is provided with second below second magnet (10)
Sensor chip.
2. a kind of multi-turn absolute value encoder according to claim 1, which is characterized in that second magnet (10) and
Magnet clamp (12) are covered with outside two sensor chips.
3. a kind of multi-turn absolute value encoder according to claim 1, which is characterized in that first magnet (5) passes through
First magnetic receiver (4) is installed on encoder main shaft (1).
4. a kind of multi-turn absolute value encoder according to claim 1, which is characterized in that second magnet (10) passes through
Second magnetic receiver (9) is arranged on the output shaft of gear-box (8).
5. a kind of multi-turn absolute value encoder according to claim 1, which is characterized in that further include being placed in the first magnet
(5) the first pcb board (6) under, the main shaft passes through the input axis connection of the first pcb board (6) and the gear-box (8), described
First sensor chip is fixed on the first pcb board (6), and the first sensor chip is made to be placed in first magnet (5)
Lower section, and first pcb board (6) is fixedly arranged on the lower end surface of support base (3) by nut (7).
6. a kind of multi-turn absolute value encoder according to claim 1, which is characterized in that further include being set to the second magnet
(10) the second pcb board (11) under, second pcb board (11) are fixedly arranged on the output shaft of the gear-box (8), and described second
Sensor chip is fixed on the second pcb board (11), is placed in the second sensor chip under second magnet (10)
Side.
7. a kind of multi-turn absolute value encoder according to claim 1-6, which is characterized in that further include covering at
Shell (13) outside each device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820879669.6U CN208187419U (en) | 2018-06-07 | 2018-06-07 | A kind of multi-turn absolute value encoder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820879669.6U CN208187419U (en) | 2018-06-07 | 2018-06-07 | A kind of multi-turn absolute value encoder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208187419U true CN208187419U (en) | 2018-12-04 |
Family
ID=64428911
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820879669.6U Active CN208187419U (en) | 2018-06-07 | 2018-06-07 | A kind of multi-turn absolute value encoder |
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| Country | Link |
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| CN (1) | CN208187419U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110940361A (en) * | 2019-12-04 | 2020-03-31 | 北京科技大学 | Magnetic sensitive multi-circle absolute value encoder |
| CN111795709A (en) * | 2019-04-08 | 2020-10-20 | 精工爱普生株式会社 | Encoder, motor and robot |
| CN113405573A (en) * | 2021-06-08 | 2021-09-17 | 上海精传电子科技有限公司 | Harmonic absolute value encoder |
-
2018
- 2018-06-07 CN CN201820879669.6U patent/CN208187419U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111795709A (en) * | 2019-04-08 | 2020-10-20 | 精工爱普生株式会社 | Encoder, motor and robot |
| CN110940361A (en) * | 2019-12-04 | 2020-03-31 | 北京科技大学 | Magnetic sensitive multi-circle absolute value encoder |
| CN113405573A (en) * | 2021-06-08 | 2021-09-17 | 上海精传电子科技有限公司 | Harmonic absolute value encoder |
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