CN108361293A - A kind of dedicated shaft coupling of encoder - Google Patents
A kind of dedicated shaft coupling of encoder Download PDFInfo
- Publication number
- CN108361293A CN108361293A CN201810374248.2A CN201810374248A CN108361293A CN 108361293 A CN108361293 A CN 108361293A CN 201810374248 A CN201810374248 A CN 201810374248A CN 108361293 A CN108361293 A CN 108361293A
- Authority
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- China
- Prior art keywords
- claw
- axle sleeve
- valve body
- pawl
- encoder
- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
- F16D3/50—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members
- F16D3/56—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members comprising elastic metal lamellae, elastic rods, or the like, e.g. arranged radially or parallel to the axis, the members being shear-loaded collectively by the total load
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
- Electrically Driven Valve-Operating Means (AREA)
Abstract
The present invention is a kind of dedicated shaft coupling of encoder, including a pair of of axle sleeve, and claw is fixed on each axle sleeve.Two sleeve diameters are matched with motor shaft, encoder axis respectively, and shaft end is fixedly connected on screw is marked closely.Each identical bowl-type elastic card claw that is connected in two axle sleeve peripheries, two claws respectively have uniformly distributed, phase mutual gap N number of pawl valve, the latch spoon of each pawl valve to turn back to side, are shaped to bowl-type.Under responsive to axial force, the pawl valve of two claws, which interlocks, is embedded in the gap of other side's pawl valve, and the transmission of power between motor shaft and encoder axis is realized in the connection of two claws.This shaft coupling ensures encoder and motor shaft resilient connection, and when axial float and impact occurs in motor shaft, this shaft coupling buffers and absorb energy, ensures encoder safety；When circumferential impact occurs in motor shaft, shaft coupling overcomes the rotary inertia of encoder, ensures its feedback accuracy；When claw is worn, pretightning force ensures that claw contacts always, effectively ensures that encoder safety and stability is reliably run.
Description
Technical field
Couple installation the present invention relates to encoder and servo motor shaft, can specially protect encoder, ensure feedback essence
A kind of dedicated shaft coupling of encoder of degree.
Background technology
Currently, the encoder matched of servo motor is in order to ensure precision, facilitate installation, rotor stator be pacified by bearing
Dress up an entirety.Encoder rotor is installed with motor shaft cooperation, and stator is fixed on motor.In order to ensure the service life of encoder
And precision, shaft coupling can be installed when rotor couples with motor shaft additional, when impact and play occurs in motor shaft, shaft coupling can partly hinder
Disconnected impact energy, avoids damaging encoder.To ensure feedback accuracy, it is used that shaft coupling can overcome encoder rotor to rotate
Amount and it is indeformable.Shaft coupling generally use joint-cutting shaft coupling, flexible sheet shaft coupling, figure of eight shaft coupling for encoder
It is that can not work normally under industry spot bad working environments or the service life is too short Deng, the defect of these shaft couplings.
Invention content
Include a pair of axle sleeve for carrying bowl-shape claw the purpose of the present invention is designing a kind of dedicated shaft coupling of encoder, 2
A axle sleeve is individually fixed on motor and encoder axis, and the mutual inlay card connection of 2 claws can utmostly protect encoder, and
Working environment simple in structure, easy for installation, of low cost, adaptation is severe, moreover it is possible to ensure the feedback accuracy of encoder.
The dedicated shaft coupling of a kind of encoder that the present invention designs includes a pair of of axle sleeve, and claw is fixed on each axle sleeve,
First sleeve diameter is matched with motor shaft, and the first axle sleeve marks closely screw through first and is fixedly connected on motor shaft end；Second axle sleeve
Internal diameter is matched with encoder axis, and the second axle sleeve marks closely screw through second and is fixedly connected on encoder shaft end.First axle sleeve periphery
It is fixedly connected with the first claw, the second axle sleeve periphery is fixedly connected with the second claw, and the first claw and the second claw are that structure is identical
Bowl-type elastic card claw, the first axle sleeve and the second axle sleeve are respectively at the bottom of bowl of the first claw and the second claw, the first claw and
Two claws respectively have uniformly distributed, phase mutual gap N number of pawl lobed into bowl wall, the center line of the first claw and the second claw respectively with
The center line of first axle sleeve and the second axle sleeve overlaps.The bowl-type concave surface of first, second claw is opposite, the first axle sleeve and the second axle sleeve
Center line overlap, and under responsive to axial force, the pawl valve of the first, second claw interlocks the gap of embedded other side's pawl valve, two cards
Pawl contact connection realizes the transmission of power between motor shaft and encoder axis.
The integer that the N is 5~9.
The geomery all same of each pawl valve of first, second claw is symmetrical with axle sleeve center line.In each pawl valve
Angle between heart line is 360 °/N.
The outer diameter of first, second claw is 2~3 times of the first, second axle sleeve outside diameter d.The thickness of first, second claw is
0.15mm~0.5mm.
The center of first, second claw is the snap ring of annular, and snap ring outer rim is fixedly connected with each pawl valve bottom end.It is bent in claw
Before being shaped to bowl-type, snap ring and each pawl valve are in the same plane.The internal-and external diameter of snap ring and the outer diameter of step transition of axle sleeve side
It is connected to one with merging.
Each pawl valve is divided into latch spoon and valve body, and latch spoon is plain film, and valve body is Jiong shape plain film, latch spoon be inserted into valve body Jiong shape,
Latch spoon top is connected to one with valve body Jiong shape crossbeam bottom, and the two of valve body Jiong shape perpendicular has between 1~3mm between latch spoon
Gap.Latch spoon and valve body form M shapes, but are longer than valve body in intermediate latch spoon, and the bottom end of latch spoon is stretched out outside valve body Jiong shape and snap ring
Edge is connected to one.
The maximum width B in the gap between the pawl valve valve body of the first, second claw is more than the width A of pawl valve valve body Jiong shape.
B-A is 0.2mm~1.5mm.
Valve body Jiong shape bottom end and the radial distance at axle sleeve center are the 1/6 to 1/3 of the first, second claw outer diameter, with snap ring
The distance of outer rim is 3mm~8mm.The width of the width and latch spoon of valve body Jiong shape transverse sheet and riser is 3mm~8mm.
The latch spoon of each pawl valve is turned back to axial end side, is shaped to bowl-type.It turns back the radial distance etc. at place and axle sleeve center
In or less than each Jiong shape valve body bottom end and axle sleeve center radial distance.Latch spoon is in same flat with snap ring close to the part of snap ring
Face is bottom of bowl, and Jiong shape valve body forms bowl wall with part latch spoon of the inside.
After the latch spoon of each pawl valve is turned back, each valve body is equal with the angle V of end face of shaft bush, is 8 °~11 °, after turning back, each valve
Body is in part latch spoon of the inside on the conical surface of the same pyramid.
There are M shape straight slots, 1~3mm of groove width in the M shapes that latch spoon and Jiong shape valve body are formed.The side of M shapes straight slot and latch spoon, valve body
The distance of edge is equal to or more than 3mm.Each pawl valve is symmetrical with latch spoon center line.
The pawl valve of first, second claw, which interlocks, is embedded in the pawl intervalvular spaces of other side, and axial pre tightening force is 1 newton, the first axle sleeve
The distance between end face opposite with the second axle sleeve is 4~6mm.
Compared with prior art, a kind of the advantages of encoder of the present invention dedicated shaft coupling, is：1, encoder axis and motor
Axis shaft coupling through the invention realizes resilient connection, when there is axial float and impact in motor shaft, this shaft coupling buffering and
Energy is absorbed, ensures the safety of encoder；When circumferential impact occurs in motor shaft, the circumferential rigidity of this shaft coupling then overcomes coding
The rotary inertia of device, provides rotating angular acceleration, ensures the feedback accuracy of encoder；2, when shaft coupling long-play card
When pawl is worn, the pretightning force between claw remains to make two claws contact connection always, effectively ensures that encoder safety and stability can
It is run by ground；3, working environment simple in structure, easy for installation, of low cost, adaptation is severe, ensures the feedback accuracy of encoder
Long working life, have good market prospects.
Description of the drawings
Fig. 1 is the dimensional structure diagram that the dedicated shaft coupling embodiment of this encoder is regarded in the first claw side；
Fig. 2 is the dimensional structure diagram that the dedicated shaft coupling embodiment of this encoder is regarded in the second claw side；
Fig. 3 is the dedicated shaft coupling embodiment application scheme of installation of this encoder；
Fig. 4 is the vertical view of the first claw before the dedicated shaft coupling embodiment latch spoon of this encoder is turned back；
Fig. 5 is the vertical view of the first claw after the dedicated shaft coupling embodiment latch spoon of this encoder is turned back；
Fig. 6 is the A-A of Fig. 5 to sectional view.
Figure label is：1, the first claw, 11, latch spoon, 12, valve body, 13, snap ring, the 2, first axle sleeve, the 3, first clamp screw
Nail, the 4, second claw, the 5, second axle sleeve, the 6, second holding screw, 7, motor shaft, 8, encoder axis.
Specific implementation mode
The present invention will be described in detail below by way of embodiments and drawings.
The dedicated shaft coupling embodiment of this encoder is as shown in Figure 1 to Figure 3, including the first, second axle sleeve 2,5, divides thereon
The first, second claw 1,4 is not fixed.First axle sleeve, 2 internal diameter is matched with motor shaft 7, there is 3 fixing threaded holes on the first axle sleeve 2,
It marks closely screw 3 for 3 first and first axle sleeve 2 is fixedly connected on 7 end of motor shaft.Second axle sleeve, 5 internal diameter matches with encoder axis 8
It closes, has 3 fixing threaded holes on the second axle sleeve 4, mark closely screw 6 for 3 second and second axle sleeve 5 is fixedly connected on 8 end of encoder axis.
First axle sleeve, 2 periphery is fixedly connected with the first claw 1, and 5 periphery of the second axle sleeve is fixedly connected with the second claw 4, the first claw 1 and second
Claw 4 is the identical bowl-type elastic card claw of structure, and the first axle sleeve 2 and the second axle sleeve 5 are respectively at the first claw 1 and the second claw
4 bottom of bowl.This example the first claw 1 and the second claw 4 respectively have uniformly distributed, phase mutual gap 6 pawl lobeds at bowl wall, the first card
The center line of pawl 1 and the second claw 2 is overlapped with the center line of the first axle sleeve 2 and the second axle sleeve 5 respectively.First, second claw 1,4
Bowl-type concave surface it is opposite, the center line of the first axle sleeve 2 and the second axle sleeve 5 overlaps, and under responsive to axial force, the first, second card
The pawl valve of pawl 1,4, which interlocks, is embedded in the gap of other side's pawl valve, two claw contact connections.
As shown in Figs. 4-6, the geomery all same of each pawl valve of the first, second claw 1,4 is with axle sleeve center line
It is symmetrical.Angle between each pawl valve center line of this example is 60 °.
Outer diameter D=44mm of the first, second claw of this example 1,4, the first, second claw 1,4 be thickness=0.25mm not
Become rusty steel disc.
The center of first, second claw 1,4 is the snap ring 13 of annular, and 13 outer rim of snap ring is fixedly connected with each pawl valve bottom end.Such as
Shown in Fig. 4, before claw bending forming is bowl-type, snap ring 13 and each pawl valve are in the same plane.The internal-and external diameter of snap ring 13 with
The outer diameter of step transition of axle sleeve side is welded as a whole with fixation is merged.
As shown in Figs. 4-6, each pawl valve is divided into latch spoon 11 and valve body 12, and latch spoon 11 is plain film, and valve body 12 is flat for Jiong shape
Piece, latch spoon 11 are inserted into the Jiong shape of valve body 12, and 11 top of latch spoon is connected to one with 12 Jiong shape crossbeam bottom of valve body, 12 Jiong of valve body
The perpendicular gap for having 1~3mm between latch spoon 11 of the two of shape.Latch spoon 11 and valve body 12 form M shapes, but are grown in intermediate latch spoon 11
It is connected to one with 13 outer rim of snap ring in the Jiong shape of valve body 12, the bottom end stretching valve body 12 of latch spoon 11.
The maximum width B=11.9mm in the gap between the pawl valve valve body 12 of the first, second claw of this example 1,4；Pawl valve valve
The width A=10.9mm of 12 Jiong shape of body.
The radial distance at 12 Jiong shape bottom end of valve body and axle sleeve center, which is at a distance from W/2=11.7mm, with 13 outer rim of snap ring, is
2.7mm.The width of the width and latch spoon 11 of 12 Jiong shape transverse sheet of valve body and riser is 3mm~6mm.
The latch spoon 11 of each pawl valve is turned back to axial end side, is shaped to bowl-type.It turns back the radial distance at place and axle sleeve center
Equal to the radial distance W/2=11.7mm of each Jiong shape valve body bottom end and axle sleeve center.Latch spoon 11 is close to the part of snap ring 13 and card
It is bottom of bowl that ring 13, which is in same plane, and Jiong shape valve body 12 forms bowl wall with part latch spoon 11 of the inside.
After the latch spoon 11 of each pawl valve is turned back, each valve body 12 is equal with the angle V of end face of shaft bush, is 9 °, after turning back, each valve body
12 are in part latch spoon 11 of the inside on the conical surface of the same pyramid.
There are M shape straight slots, groove width 1.5mm in the M shapes that latch spoon 11 and Jiong shape valve body 12 are formed.M shapes straight slot and latch spoon 11, valve body
The distance at 12 edge is equal to or more than 3mm.Each pawl valve is symmetrical with 11 center line of latch spoon.
The pawl valve of first, second claw 1,4, which interlocks, is embedded in the pawl intervalvular spaces of other side, and axial pre tightening force is 1 newton, first axle
The distance between set 2 and the second opposite end face of axle sleeve 5 are 5mm.
Present embodiment ensure that encoder and motor shaft resilient connection, when there is axial float and impact in motor shaft, connection
Axis device can buffer and absorb energy, ensure the safety of encoder；When there is circumferential impact in motor shaft, the circumferential rigidity of shaft coupling
The rotary inertia that encoder can be overcome, provides rotating angular acceleration, ensures the feedback accuracy of encoder；When shaft coupling is transported for a long time
When claw abrasion occurs in row, the pretightning force between claw can guarantee that claw is always ensured that contact, effectively ensure that encoder is steady safely
Fixed reliable operation.
The configuration of the present invention is simple, can guarantee the anti-of encoder at working environment easy for installation, of low cost, adaptation is severe
Precision is presented, is had good market prospects.
Above-described embodiment is only further described the purpose of the present invention, technical solution and advantageous effect specific
A example, present invention is not limited to this.All any modifications made within the scope of disclosure of the invention, change equivalent replacement
Into etc., it is all included in the scope of protection of the present invention.
Claims (10)
1. a kind of dedicated shaft coupling of encoder, including a pair of of axle sleeve, it is fixed with claw on each axle sleeve, in the first axle sleeve (2)
Diameter is matched with motor shaft (7), and the first axle sleeve (2) marks closely screw (3) through first and is fixedly connected on motor shaft (7) end；Second axis
Set (5) internal diameter is matched with encoder axis (8), and the second axle sleeve (5) marks closely screw (6) through second and is fixedly connected on encoder axis
(8) it holds；First axle sleeve (2) periphery is fixedly connected with the first claw (1), and the second axle sleeve (5) periphery is fixedly connected with the second claw (4),
First claw (1) and the second claw (4) are the identical bowl-type elastic card claw of structure, and the first axle sleeve (2) and the second axle sleeve (5) are respectively
Bottom of bowl in the first claw (1) and the second claw (4), the first claw (1) and the second claw (2) respectively have uniformly distributed, phase mutual
N number of pawl lobed in gap at bowl wall, the center line of the first claw (1) and the second claw (4) respectively with the first axle sleeve (2) and second
The center line of axle sleeve (5) overlaps；The bowl-type concave surface of first, second claw (1,4) is opposite, the first axle sleeve (2) and the second axle sleeve (5)
Center line overlap；Under responsive to axial force, the pawl valve of the first, second claw (1,4), which interlocks, is embedded in the gap of other side's pawl valve；
The integer that the N is 5~9.
2. the dedicated shaft coupling of encoder according to claim 1, it is characterised in that：
The geomery all same of each pawl valve of first, second claw (1,4) is symmetrical with axle sleeve center line；Respectively
Angle between pawl valve center line is 360 °/N.
3. the dedicated shaft coupling of encoder according to claim 1, it is characterised in that：
The outer diameter of first, second claw (1,4) is 2~3 times of the first, second axle sleeve (2,5) outer diameter；First, second card
The thickness of pawl (1,4) is 0.15mm~0.5mm.
4. the dedicated shaft coupling of encoder according to claim 1, it is characterised in that：
The center of first, second claw (1,4) is the snap ring (13) of annular, and snap ring (13) outer rim is fixedly connected with each pawl valve bottom
End；Before claw bending forming is bowl-type, snap ring (13) and each pawl valve are in the same plane；The internal-and external diameter and axis of snap ring (13)
The outer diameter of step transition of set side is connected to one with merging；
Each pawl valve is divided into latch spoon (11) and valve body (12), and latch spoon (11) is plain film, and valve body (12) is Jiong shape plain film, latch spoon (11)
The Jiong shape of insertion valve body (12), (11 tops and valve body (12) Jiong shape crossbeam bottom are connected to one latch spoon, valve body (12) Jiong shape
The two perpendicular gaps for having 1~3mm latch spoon (11) between, latch spoon (11) and valve body (12) form M shapes, are in the latch spoon of centre
(11) it is longer than valve body (12), the bottom end of latch spoon (11) stretches out valve body (12) Jiong shape and is connected to one with snap ring (13) outer rim.
5. the dedicated shaft coupling of encoder according to claim 4, it is characterised in that：
The maximum width B in the gap between the pawl valve valve body (12) of first, second claw (1,4) is more than pawl valve valve body (12)
The width A of Jiong shape；B-A=0.2mm~1.5mm.
6. the dedicated shaft coupling of encoder according to claim 4, it is characterised in that：
The radial distance at valve body (12) the Jiong shape bottom end and axle sleeve center is the 1/6 to 1/ of the first, second claw (1,4) outer diameter
It is 3mm~8mm at a distance from 3, with snap ring (13) outer rim；The width and latch spoon (11) of valve body (12) Jiong shape transverse sheet and riser
Width is 3mm~8mm.
7. the dedicated shaft coupling of encoder according to claim 4, it is characterised in that：
The latch spoon (11) of each pawl valve is turned back to axial end side, is shaped to bowl-type；Turn back place and axle sleeve center it is radial away from
From the radial distance equal to or less than each Jiong shape valve body (12) bottom end and axle sleeve center；Latch spoon (11) is close to the part of snap ring (13)
It is bottom of bowl to be in same plane with snap ring (13), and Jiong shape valve body (12) forms bowl wall with part latch spoon (11) of the inside.
8. the dedicated shaft coupling of encoder according to claim 7, it is characterised in that：
After the latch spoon (11) of each pawl valve is turned back, each valve body (12) is equal with angle (V) of end face of shaft bush, is 8 °~11 °, folding
After turning, each valve body (12) is in part latch spoon (11) of the inside on the conical surface of the same pyramid.
9. the dedicated shaft coupling of encoder according to claim 4, it is characterised in that：
There are M shape straight slots, 1~3mm of groove width in the M shapes that the latch spoon (11) and Jiong shape valve body (12) are formed；M shapes straight slot and latch spoon
(11), the distance at valve body (12) edge is equal to or more than 3mm；Each pawl valve is symmetrical with latch spoon (11) center line.
10. the dedicated shaft coupling of encoder according to any one of claim 1 to 9, it is characterised in that：
The pawl valve of first, second claw (1,4), which interlocks, is embedded in the pawl intervalvular spaces of other side, and axial pre tightening force is 1 newton, the first axle sleeve
(2) and the distance between the opposite end face of the second axle sleeve (3) is 4~6mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810374248.2A CN108361293B (en) | 2018-04-24 | 2018-04-24 | Coupler special for encoder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810374248.2A CN108361293B (en) | 2018-04-24 | 2018-04-24 | Coupler special for encoder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108361293A true CN108361293A (en) | 2018-08-03 |
| CN108361293B CN108361293B (en) | 2023-08-22 |
Family
ID=63009419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810374248.2A Active CN108361293B (en) | 2018-04-24 | 2018-04-24 | Coupler special for encoder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108361293B (en) |
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| CN202901087U (en) * | 2012-10-30 | 2013-04-24 | 金华市益迪医疗设备有限公司 | Pathological slicing machine coupling |
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| CN205315530U (en) * | 2015-12-10 | 2016-06-15 | 欧姆龙(上海)有限公司 | Coupling joint is adjusted structure |
| CN207064556U (en) * | 2017-08-10 | 2018-03-02 | 杭州前进联轴器有限公司 | Possesses the high pulling torque highly elastic shaft coupling of ventilating and cooling function |
| CN208221407U (en) * | 2018-04-24 | 2018-12-11 | 桂林星辰科技股份有限公司 | A kind of dedicated shaft coupling of encoder |
| EP4043749A1 (en) * | 2021-02-16 | 2022-08-17 | Hengstler GmbH | Coded plug-in shaft coupling |
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2018
- 2018-04-24 CN CN201810374248.2A patent/CN108361293B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202005016610U1 (en) * | 2005-10-24 | 2005-12-22 | Otto Dieterle Spezialwerkzeuge Gmbh | Reversible plate for tool, has body, on which supporting slots are pressed, such that transitions between their side surfaces and surfaces adjacent to side surfaces are rounded, and side surfaces are curved by slots` cross sectional shape |
| CN101598180A (en) * | 2009-07-14 | 2009-12-09 | 苏州市飞龙联轴器传动工程有限公司 | High soft membrane flexible coupler |
| DE202009015281U1 (en) * | 2009-11-11 | 2010-03-18 | R & W Antriebselemente Gmbh | claw clutch |
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| CN204512225U (en) * | 2015-01-12 | 2015-07-29 | 张�浩 | A kind of diaphragm coupling |
| CN204628352U (en) * | 2015-05-07 | 2015-09-09 | 昌吉市锦铁机械制造有限公司 | Petal type coupling with rubber plates |
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| CN208221407U (en) * | 2018-04-24 | 2018-12-11 | 桂林星辰科技股份有限公司 | A kind of dedicated shaft coupling of encoder |
| EP4043749A1 (en) * | 2021-02-16 | 2022-08-17 | Hengstler GmbH | Coded plug-in shaft coupling |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108361293B (en) | 2023-08-22 |
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