CN208795246U - A kind of multi-turn absolute value encoder - Google Patents
A kind of multi-turn absolute value encoder Download PDFInfo
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- CN208795246U CN208795246U CN201821777368.9U CN201821777368U CN208795246U CN 208795246 U CN208795246 U CN 208795246U CN 201821777368 U CN201821777368 U CN 201821777368U CN 208795246 U CN208795246 U CN 208795246U
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- planet carrier
- gear
- main body
- planetary gear
- absolute value
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Abstract
The utility model discloses a kind of multi-turn absolute value encoders, including axis input adapter, main body cover, pedestal and measurement component, the axis input adapter is assembled in the top of main body cover, the measurement component is mounted on inside main body cover and is located above pedestal, on the main body cover firm banking；It include chip, central axis, planetary gear, planet carrier and magnet in the measurement component, the planetary gear is mounted on the gear shaft of planet carrier；The central axis bottom is equipped with central gear, the central gear and central axis integrated injection molding.The utility model replaces transmission gear group using planetary gear set, does not need using code-disc and shielding grating, structure is simple, and small volume, cheap and durability are high；Planetary gear determines coding by mechanical location, without memory, is influenced without looking for reference point, and not by having a power failure, interfering, greatly improves the noiseproof feature of encoder.
Description
Technical field
The utility model relates to a kind of encoder more particularly to a kind of multi-turn absolute value encoders.
Background technique
Encoder (encoder) is a kind of device for angular displacement or straight-line displacement being converted into electric signal.The former is known as code
Disk, the latter claim yardstick；According to the difference of data playback mode, encoder can be divided into contact and two kinds contactless.Contact
Formula is exported using brush, indicates that the state of code is " 1 " or " 0 " by brush contact conduction region or insulation layer；It is non-contact
The sensing element that receives of formula includes light-sensitive element or magneto sensor, and using is indicated when light-sensitive element with transparent area and opaque area
The state of code is " 1 " or " 0 ".
Absolute encoder is arranged there are many road optical channel groove on its optical code disk, and per pass groove is successively with 2 lines, 4 lines, 8
Line, 16 line layouts, in this way in each position of encoder, by reading the logical, dark of per pass groove, obtain one group from 2 zero
Unique 2 scale coding (Gray code) of n-1 power of the power to 2, this is known as n absolute encoders.
Absolute encoder determines coding by mechanical location, without counting always, when needing to obtain corresponding position, passes through
The encoded information for reading optical code disk can be known.Because each of which position it is absolutely unique, it is anti-interference, be not necessarily to power-failure memory,
Angle, linear measure longimetry and the location control being applied in various industrial systems more and more widely, such as textile machine, Irrigation Machine
Tool, papermaking printing, water conservancy gate, robot and mechanical arm, port crane, Ferrous Metallurgy equipment, heavy duty equipment,
The fields such as precision measurement equipment, lathe and food machinery.Since measurement range is big, actual use is often rich more, exists in this way
Unnecessary hard small change point when installation, using a certain middle position as starting point can, and enormously simplify installation and debugging
Difficulty.
The measurement within 360 degree of rotating range can only be recorded from individual pen absolute value encoder, and multi-turn absolute value encoder
Then it is able to record the angle of multipurpose rotary, multi-turn absolute value encoder is on the basis of single-ring encoder by machine driving original
Reason, is formed using watch gear theory of mechanics structure fabrication, and the generally existing driving wheel of clock-type multi-turn absolute value encoder is more
The problem that structure is complicated, the complicated and at high cost failure rate of machinery of production technology is high.
Therefore, study and develop that a kind of small volume, durability are high and low-cost multi-turn absolute value encoder is outstanding
For necessity.
Summary of the invention
The technical problem to be solved by the utility model is to provide a kind of multi-turn absolute value encoders, solve in the prior art
Multi-turn absolute value encoder higher cost, volume be larger and problem that durability is low.
The utility model is to solve above-mentioned technical problem and the technical solution adopted is that provide a kind of multi-turn absolute encoder
Device, including axis input adapter, main body cover, pedestal and measurement component, the axis input adapter are assembled in the top of main body cover,
The measurement component is mounted on inside main body cover and is located above pedestal, on the main body cover firm banking；The measurement
Component includes chip, central axis, planetary gear, planet carrier and magnet, and the magnet is mounted on planet carrier center, the planet tooth
Wheel is mounted on the gear shaft of planet carrier；The central axis bottom is equipped with central gear, the central gear and central axis one
Injection molding；The center axis rotation drives planetary gear rotation, so that the Distribution of Magnetic Field of magnet generates variation, the chip inspection
Survey the Distribution of Magnetic Field of magnet.
Further, the base side is equipped with line around connector, and the chip is electrically connected with output line of the line in connector,
The chip and pedestal and line solderless wrapped connection head integrated injection molding.
Further, the planet carrier includes first planet carrier and the second planet carrier, the first planet carrier and the second row
Carrier is designed with three gear shafts, and a planetary gear is equipped on each gear shaft, and the first planet carrier, which is located at, to be installed
Above the second planet carrier of planetary gear；The central axis, which is located at, installs planetary gear first planet carrier upper center；Institute
Center outer shaft sleeve is stated equipped with bearing, the main body cover is set in the bearing being completed, central axis, planetary gear and planet carrier
Outside, and by end cap it fixes.
Further, the central gear and the planetary gear in first planet carrier are ratcheting, and the center axis rotation drives
Central gear rotation, central gear drive planetary gear rotation.
Further, the bearing includes first bearing and second bearing, and the outer diameter of the first bearing is greater than the second axis
The outer diameter held, the second bearing are located above first bearing, and the first bearing is located above central gear.
Further, second planet carrier center is equipped with centre bore, and the magnet is located in centre bore；The end cap position
Below the second planet carrier, second planet carrier bottom centre is equipped with boss, and the end cap central is equipped with matched with boss
Groove, second planet carrier are fastened in end cap by boss, and the end cap edge is equipped with installation card slot and fixation hole, described
End cap is fixed in main body cover by installation card slot and fixation hole.
Further, the axis input adapter and main body cover contact position are equipped with sealing ring.
Further, the top edge of the main body cover is fixed with mounting bracket, and the both ends of the mounting bracket are formed
There is U-shaped fin, the free end of the U-shaped fin turns down outward to be extended and offer mounting hole.
Further, the axis input adapter is replaceable adapter of plastic.
The utility model comparison prior art has following the utility model has the advantages that multi-turn absolute encoder provided by the utility model
Device replaces transmission gear group using planetary gear set, does not need using code-disc and shielding grating, structure is simple, small volume, valence
Lattice are cheap and durability is high；Planetary gear determines coding by mechanical location, without memory, without looking for reference point, and do not had a power failure,
The influence of interference greatly improves the noiseproof feature of encoder.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the multi-turn absolute value encoder of the utility model embodiment；
Fig. 2 is the broken away view of the multi-turn absolute value encoder of the utility model embodiment.
In figure:
| 1 central axis | 2 first bearings | 3 second bearings |
| 4 main body covers | 5 mounting brackets | 6 sealing rings |
| 7 axis input adapters | 8 planetary gears | 9 first planet carriers |
| 10 second planet carriers | 11 magnet | 12 end caps |
| 13 pedestals | 13-1 chip | 14 lines are around connector |
Specific embodiment
The utility model will be further described with reference to the accompanying drawings and examples.
Fig. 1 is the multi-turn absolute value encoder structural schematic diagram of the utility model embodiment；Fig. 2 is the utility model implementation
The broken away view of the multi-turn absolute value encoder of example.
Referring to Figure 1 and Fig. 2, the multi-turn absolute value encoder of the utility model embodiment, including it is axis input adapter 7, main
Body case 4, pedestal 13 and measurement component, the axis input adapter 7 are assembled in the top of main body cover 4, the measurement component peace
Mounted in 4 inside of main body cover and it is located above pedestal 13, on 4 firm banking 13 of main body cover；The measurement component includes
Chip 13-1, central axis 1, planetary gear 8, planet carrier and magnet 11, the magnet 11 are mounted on planet carrier center, the planet
Gear 8 is mounted on the gear shaft of planet carrier；1 bottom of central axis is equipped with central gear, the central gear and central axis 1
Integrated injection molding；The rotation of central axis 1 drives planetary gear 8 to rotate, so that the Distribution of Magnetic Field of magnet 11 generates variation, institute
Chip 13-1 is stated to calculate the rotation angle of central axis 1 by the Distribution of Magnetic Field variation of detection magnet and export electric signal.
Preferably, 13 side of pedestal is equipped with line around connector 14, the output of the chip 13-1 and line in connector 14
Line electrical connection, the chip 13-1 and pedestal 13 and line are around 14 integrated injection molding of connector；Chip 13-1 is directly injection-moulded in bottom
Dust seal effect is good in seat 13, and line plays protection well not around connector 14 and 13 integrated injection molding of pedestal, to output line
Easily break, it is high compared to pin-connected panel assembly precision, it is easy to connect.
Specifically, the planet carrier includes first planet carrier 9 and the second planet carrier 10, the first planet carrier 9 and second
Planet carrier 10 is designed with three gear shafts, and a planetary gear 8 is equipped on each gear shaft, and the first planet carrier 9 is located at
Install 10 top of the second planet carrier of planetary gear 8；The central axis 1, which is located at, installs planetary gear first planet carrier 9
Upper center；Bearing is arranged with outside the central axis 1, the main body cover 4 is set in the bearing being completed, central axis 1, row
Outside star gear 8 and planet carrier, and it is fixed by end cap 12.8 tooth of planetary gear on the central gear and first planet carrier 9
It closes, the rotation of central axis 1 drives central gear rotation, and central gear drives planetary gear 8 to rotate.The bearing includes first
Bearing 2 and second bearing 3, the outer diameter of the first bearing 2 are greater than the outer diameter of second bearing 3, and the second bearing 3 is located at first
2 top of bearing, the first bearing 2 are located above central gear.Second planet carrier, 10 center is equipped with centre bore, the magnetic
Iron 11 is located in centre bore；The end cap 12 is located at 10 lower section of the second planet carrier, and 10 bottom centre of the second planet carrier is equipped with
Boss, 12 center of end cap, which is equipped with, is fastened on end cap 12 by boss with the matched groove of boss, second planet carrier 10
In, 12 edge of end cap is equipped with installation card slot and fixation hole, and the end cap 12 is fixed on master by installation card slot and fixation hole
In body case 4.
Preferably, the axis input adapter 7 is equipped with sealing ring 6 with 4 contact position of main body cover, plays the role of sealing.
Preferably, 7 material of axis input adapter is plastics, and the axis input adapter 7 is replaceable, according to installation site spy
Point selects the axis input adapter 7 of different size and mounting means, meets the needs of special occasions.
Preferably, the top edge of the main body cover 4 is fixed with mounting bracket 5, and the both ends of the mounting bracket 5 are formed
There is U-shaped fin, the free end of the U-shaped fin turns down outward to be extended and offer mounting hole, and U-shaped fin plays damping, buffering
Effect, while being applicable in different installation dimensions.
In conclusion multi-turn absolute value encoder provided by the utility model, replaces transmission gear using planetary gear set
Group is not needed using code-disc and shielding grating, and structure is simple, and small volume, cheap and durability are high；Planetary gear is by machine
Tool position determines coding, without memory, is influenced without looking for reference point, and not by having a power failure, interfering, and the anti-of encoder is greatly improved
Interference characteristic.
Although the utility model is disclosed as above with preferred embodiment, so it is not intended to limit the utility model, any
Those skilled in the art, without departing from the spirit and scope of the utility model, when can make a little modification and it is perfect, therefore this
The protection scope of utility model, which is worked as, to be subjected to the definition of the claims.
Claims (9)
1. a kind of multi-turn absolute value encoder, which is characterized in that including axis input adapter (7), main body cover (4), pedestal (13)
With measurement component, the axis input adapter (7) is assembled in the top of main body cover (4), and the measurement component installation is outside the main body
Shell (4) is internal and is located above pedestal (13), on main body cover (4) firm banking (13)；The measurement component includes core
Piece (13-1), central axis (1), planetary gear (8), planet carrier and magnet (11), the magnet (11) are mounted on planet carrier center,
The planetary gear (8) is mounted on the gear shaft of planet carrier；Central axis (1) bottom is equipped with central gear, the center
Gear and central axis (1) integrated injection molding；Central axis (1) rotation drives planetary gear (8) rotation, so that magnet (11)
Distribution of Magnetic Field generate variation, the Distribution of Magnetic Field of the chip (13-1) detection magnet.
2. multi-turn absolute value encoder as described in claim 1, which is characterized in that pedestal (13) side is equipped with line solderless wrapped connection
Head (14), the chip (13-1) are electrically connected with output line of the line in connector (14), the chip (13-1) and pedestal (13)
And line is around connector (14) integrated injection molding.
3. multi-turn absolute value encoder as described in claim 1, which is characterized in that the planet carrier includes first planet carrier
(9) and the second planet carrier (10), the first planet carrier (9) and the second planet carrier (10) are designed with three gear shafts, Mei Gechi
One planetary gear (8) is installed, the first planet carrier (9) is located at the second planet for installing planetary gear (8) on wheel shaft
Above frame (10)；The central axis (1), which is located at, installs planetary gear first planet carrier (9) upper center；The central axis
(1) bearing is arranged with outside, the main body cover (4) is set in the bearing being completed, central axis (1), planetary gear (8) and row
Outside carrier, and it is fixed by end cap (12).
4. multi-turn absolute value encoder as claimed in claim 3, which is characterized in that the central gear and first planet carrier
(9) planetary gear (8) on is ratcheting, and central axis (1) rotation drives central gear rotation, and central gear drives planetary gear
(8) it rotates.
5. multi-turn absolute value encoder as claimed in claim 3, which is characterized in that the bearing include first bearing (2) and
Second bearing (3), the outer diameter of the first bearing (2) are greater than the outer diameter of second bearing (3), and the second bearing (3) is located at the
Above one bearing (2), the first bearing (2) is located above central gear.
6. multi-turn absolute value encoder as claimed in claim 3, which is characterized in that the second planet carrier (10) center is equipped with
Centre bore, the magnet (11) are located in centre bore；The end cap (12) is located at below the second planet carrier (10), second row
Carrier (10) bottom centre is equipped with boss, and end cap (12) center is equipped with and the matched groove of boss, second planet carrier
(10) it is fastened in end cap (12) by boss, end cap (12) edge is equipped with installation card slot and fixation hole, the end cap
(12) it is fixed in main body cover (4) by installation card slot and fixation hole.
7. multi-turn absolute value encoder as described in claim 1, which is characterized in that outside the axis input adapter (7) and main body
Shell (4) contact position is equipped with sealing ring (6).
8. multi-turn absolute value encoder as described in claim 1, which is characterized in that the top edge of the main body cover (4)
It is fixed with mounting bracket (5), the both ends of the mounting bracket (5) are formed with U-shaped fin, and the free end of the U-shaped fin is outside
Fold extends and offers mounting hole.
9. multi-turn absolute value encoder as described in claim 1, which is characterized in that the axis input adapter (7) is replaceable
Adapter of plastic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821777368.9U CN208795246U (en) | 2018-10-31 | 2018-10-31 | A kind of multi-turn absolute value encoder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821777368.9U CN208795246U (en) | 2018-10-31 | 2018-10-31 | A kind of multi-turn absolute value encoder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208795246U true CN208795246U (en) | 2019-04-26 |
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ID=66212432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821777368.9U Active CN208795246U (en) | 2018-10-31 | 2018-10-31 | A kind of multi-turn absolute value encoder |
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| Country | Link |
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| CN (1) | CN208795246U (en) |
Cited By (1)
| 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 |
-
2018
- 2018-10-31 CN CN201821777368.9U patent/CN208795246U/en active Active
Cited By (1)
| 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 |
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