CN102207135A - Coupler - Google Patents
Coupler Download PDFInfo
- Publication number
- CN102207135A CN102207135A CN2011100447153A CN201110044715A CN102207135A CN 102207135 A CN102207135 A CN 102207135A CN 2011100447153 A CN2011100447153 A CN 2011100447153A CN 201110044715 A CN201110044715 A CN 201110044715A CN 102207135 A CN102207135 A CN 102207135A
- Authority
- CN
- China
- Prior art keywords
- axle
- slot
- cutting groove
- coupling
- shaft
- 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.)
- Pending
Links
- 230000008878 coupling Effects 0.000 claims description 45
- 238000010168 coupling process Methods 0.000 claims description 45
- 238000005859 coupling reaction Methods 0.000 claims description 45
- 238000004519 manufacturing process Methods 0.000 abstract description 15
- 239000002184 metal Substances 0.000 description 12
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Images
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
- F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
- F16D1/06—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end
-
- 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
- F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
-
- 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
- F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
- F16D1/02—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for connecting two abutting shafts or the like
- F16D1/04—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for connecting two abutting shafts or the like with clamping hub; with hub and longitudinal key
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
- Clamps And Clips (AREA)
- Power Steering Mechanism (AREA)
- Forging (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The invention provides a coupler which can enhance the strength of a fixing portion and the connection force of a shaft, improve the transmitting torque and torsional rigidity, and shorten the manufacturing time. The coupler comprises a shaft hole portion 22 for a shaft to be inserted thereinto, a longitudinal cutting groove 28 parallel to the shaft hole portion 22, and a lateral cutting groove arranged on a shaft fixing portion 20 at the right angle direction of the shaft A residual portion (20) of the cutting grooves is divided into various equal sections with the longitudinal cutting groove as a boundary. With the shaft core as the boundary, the bottom 25 of the lateral cutting groove having one end 25a near the longitudinal cutting groove 28 being arched, and the end 25b away from the longitudinal cutting groove 28 being linear. Compared with a coupler having a linear cutting groove bottom, the coupler, of which the bottom 25 of the cutting groove has said structure, is advantageous in high strength of shaft fixing portion, high transmitting torque and torsional rigidity, and shorter manufacturing time. Moreover, the coupler, compared with a coupler having an arched cutting groove bottom, is advantageous in that the fixing portion is easy to bend, and the connection force of the shaft is stronger.
Description
Technical field
The present invention relates to be used for the coupling of coupling shaft and axle.
Background technique
Coupling is used for prolonging axle or from axial another transferring power, has proposed various coupling all the time.
As one of them example, the coupling shown in patent documentation 1 and 2 is arranged.
The prior art document
Patent documentation
Patent documentation 1: the spy opens the 2005-273790 communique
Patent documentation 2: No. 338258 communique of patent
Following flexible coupling is disclosed in patent documentation 1: almost linearly at outer circumferential face to the diametric(al) section of the axle right angle orientation grooving bottom that the direction with axis hole and axes intersect fork forms from the axle fixing part, and have outer circumferential side with the circular-arc convex end face that retreats.According to the invention of patent documentation 1,,, can prevent because to the be full of cracks or the breakage of the concentrated coupling that produces of stress of outer circumferential side by the convex end face of described shape is set in view of the stress of the outer circumferential side that puts on a fixing part becomes maximum situation.
In the invention of patent documentation 2, the diametric(al) section of grooving bottom is circular-arc.Like this, even grooving is little in the approach of axle fixing part, also can keep the strength of connection of axle, but also make easily.
Summary of the invention
The problem that invention will solve
Fig. 5 (a) is the figure of diametric(al) section of axle fixing part 40 of the flexible coupling of expression patent documentation 1.
Shown in Fig. 5 (a), the diametric(al) section of the grooving of the invention of patent documentation 1 bottom 41 is almost straight line shape.
Like this, 41 diametric(al) section is under the situation of straight line shape in grooving bottom, because the sectional area of residual part 42 diminishes, therefore, and the weakened of axle fixing part, in addition, transmitting torque, torsional rigid diminish.And then, in the invention of patent documentation 1, because the outer circumferential side of grooving bottom 41 is retreated with circular-arc, thereby the area of residual part 42 diminishes.
Fig. 6 be expression bottom for the axle right angle orientation grooving 41 of straight line shape ' the figure of manufacturing process.
At first, axle fixing part 40 ' outer circumference end 44a on put down metal saw 60, metal saw 60 is moved to axle center (with reference to Fig. 6 (a) and (b)).
Thereafter, shown in Fig. 6 (c), make metal saw 60 move to a fixing part 40 ' another outer circumference end 44b, the metal saw 60 that like this moves up is again finished manufacturing process.
Thereby there are the following problems: since the displacement distance of metal saw 60 be equivalent to a fixing part 40 ' external diameter, cause manufacturing more time-consuming.Outer circumference end 44a and 44b are retreated with circular-arc, make just more time-consuming.
Then, Fig. 5 (b) is the figure of diametric(al) section of axle fixing part 50 of the coupling of expression patent documentation 2.
As mentioned above, in the invention of patent documentation 2, the diametric(al) section of axle right angle orientation grooving bottom 51 is circular-arc.
Under the identical situation of the penetraction depth of the grooving bottom of axle right angle orientation, grooving bottom 51 is that the coupling of straight line shape is compared for circular-arc situation and bottom, and the area of the former residual part 52 becomes bigger.This be because, the cause that all the central direction elongation line of grooving bottom is provided with by the axle core under any circumstance.In addition, during fabrication, owing to only finish manufacturing with following operation, so the time easy to manufacture and cost is few, its operation is: mobile metal saw moves up to an axle core like this again, retreats afterwards again.
Yet fastening (clamp) length L till with the center of bolt 54 to the end 56 of grooving bottom 51 ' than the grooving bottom is that the situation of straight line shape is shorter.Therefore, there are the following problems: compare for the coupling of straight line shape with the grooving bottom, the engagement portion is difficult to bending, a little less than the binding strength of axle.
So the present invention is in view of the described problem of prior art, purpose is the coupling that provides following: by guaranteeing the sectional area of residual part, improve the intensity of axle fixing part, and the binding strength of axle is strong, it is also few to make spended time.
The means of dealing with problems
The present invention has solved described problem by following coupling, and described coupling has: the axle hole, in order to stationary axle; Slitting slot be arranged in parallel with this axle hole; The axle fixing part, by with this slitting slot to direction fastening fastening use the bolt rectangular with described axle, thereby described slitting slot distortion is attached on described, it is characterized in that:
The axle right angle orientation of described axle fixing part is provided with the transection slot that can make described slitting slot distortion,
The residual part of described transection slot is that the boundary is divided into different equal portions with described slitting slot,
With the axle center is the boundary, in the diametric(al) section of described transection slot bottom, is circular-arc from the near side of described slitting slot, is straight line shape from a slitting slot side far away.
The invention effect
According to the present invention, the diametric(al) section of transection slot bottom is and has made up circular-arc and shape straight line shape.By such setting, has following effect.
1. the diametric(al) section bottom transection slot is only compared for the coupling of straight line shape, and it is big that the sectional area of residual part becomes, and therefore, can make intensity enhancing, transmitting torque and the torsional rigid of a fixing part become big, and manufacturing is also easy.
2. only compare for circular-arc coupling with the diametric(al) section of transection slot bottom, the engagement portion is crooked easily, therefore, the binding strength of axle is strengthened.
Description of drawings
Fig. 1 is the plan view of coupling of the present invention.
Fig. 2 is the figure of one of them fixing part of expression coupling of the present invention, (a) be diametric sectional drawing, (b) is the figure of the fixing part seen from diametric(al).
Fig. 3 (a) is that the diametric(al) section bottom expression coupling of the present invention and the transection slot is the figure of difference of residual part sectional area of the coupling of straight line shape, (b) be the diametric(al) section of expression coupling of the present invention and transection slot bottom be circular-arc coupling, from fastening with the figure of bolt center to the difference of the length of engagement portion, (c) be the diametric(al) section of expression coupling of the present invention bottom transection slot be circular-arc coupling, when they fastening uses the length of bolt center to engagement portion identical the figure of the difference of residual part sectional area.
Fig. 4 is the figure of manufacturing process of the transection slot of expression coupling of the present invention.
Fig. 5 (a) is that the diametric(al) section of transection slot bottom is the diametric sectional drawing of the coupling of straight line shape, and the diametric(al) section that (b) is the transection slot bottom is the diametric sectional drawing of circular-arc coupling.
Fig. 6 (a)-(c) is that the diametric(al) section of expression transection slot bottom is the figure of manufacturing process of transection slot of the coupling of straight line shape.
Description of reference numerals
1 coupling
The 14 fastening bolts of using
20,30,40,50 fixing parts
The 20a residual part
22,32 axle holes
24,34 transection slots
25,25a, 25b transection slot bottom
28 slitting slots
Embodiment
Below, with reference to accompanying drawing 1-4, embodiment of the present invention are described.But, the present invention is not limited by this embodiment.
In Fig. 1, a pair of axle fixing part 20,30 of coupling 1 is fixing by connection set 10.In addition, between axle fixing part 20 and axle fixing part 30, be provided with leaf spring 12.
In addition, preferred axes fixing part 20,30 be shaped as cylindric.
On axle fixing part 20,30, be respectively equipped with the axle hole 22,32 that is used to insert axle.Fastening by tightening with bolt 14, the axle that inserts in the axle hole 22,32 is linked with axle fixing part 20,30 respectively.
On axle fixing part 20,30, be provided with the transection slot 24,34 to the axle right angle orientation of axle fixing part 20,30 from the 20b of periphery wall portion, the 30b of axle fixing part 20,30.In addition, transection slot is set at 24,34 o'clock, it is not connected to the 20c of another periphery wall portion, the 30c of the opposition side of axle fixing part 20,30, and leaves residual part 20a, 30a as the surplus portion of grooving, thus form the transection slot bottom (below the situation that is called " grooving bottom " is arranged.)25、35。
Shown in Fig. 2 (a), slitting slot 28 is to be provided with abreast with mode and the axle hole 22 of passing axle hole 22 and cutting residual part 20a.Tighten the fastening bolt 14 of using, make slitting slot 28 distortion so that its reduced width is linked to axle hole 22 by surface pressure with axle (not shown).
With the axle center is the boundary, in the diametric(al) section of grooving bottom 25, is circular-arc from slitting slot 28 near sides (25a), linearly from the side (25b) that slitting slot 28 is far away.
Shown in Fig. 3 (a), form circular-arcly by diametric(al) section with grooving bottom 25a, it is compared with the situation that forms straight line shape (25a '), and the area of residual part 20a has increased 20a '.Therefore, compare for the coupling of straight line shape with grooving bottom 25 integral body, the intensity of axle fixing part increases, and it is big that transmitting torque, torsional rigid also become.
In addition, it is straight line shape that grooving bottom 25b is set, and the length L 2 when then being longer than employing circular-arc (25b ') from the fastening length L 1 of center till 25b end, grooving bottom with bolt 14 is (with reference to Fig. 3 (b).)。Length till fastening center with bolt 14 to 25b end, grooving bottom is long more, the then easy more bending in engagement portion, thereby can improve the binding strength of axle.
When adopting grooving bottom 25 whole for circular-arc coupling and guarantee from fastening when being L1 with the length till the end of center bottom grooving of bolt 14, shown in Fig. 3 (c), then circular-arc grooving bottom 25 ' just must be positioned at than on the darker position of 25 cutting into position bottom the grooving of the present invention.Thus, the area of residual part 20a reduces 20a ", therefore, the intensity of axle fixing part weakens, and driving torque, torsional rigid also reduce.
More than one of them fixing part 20 is illustrated, but another fixing part 30 also is identical.
According to above formation, one of them is fixed in the axle hole 22 of a fixing part 20, and another is fixed in the axle hole 32 of a fixing part 30.In addition, axle fixing part 20 and axle fixing part 30 are connected by coupling device 10.Thus, coupling 1 can transmit the rotation of two axles with different heights (off-centre) or differing tilt angles (drift angle) etc.
Then, with reference to Fig. 4, the manufacturing process of the transection slot of coupling of the present invention is described.
At first, mobile metal saw 16 (metal saw) is to the axle center (with reference to Fig. 4 (a) and (b)).Then, metal saw 16 is moved to horizontal (direction of arrow among Fig. 4 (b)), and make metal saw 16 retreat (with reference to Fig. 4 (c)).Thus, finish the manufacturing of transection slot.In this operation, the horizontal displacement distance of metal saw 16 is the distance till the 25b end, bottom from the axle center to grooving, is equivalent to half of a fixing part 20 external diameters.
As mentioned above, if the grooving bottom integrated is the coupling of straight line shape, because the displacement distance of metal saw is equivalent to the external diameter of a fixing part, the time of therefore making transection slot of the present invention and being spent is few.
As above illustrated, according to the present invention, by the diametric(al) section that makes the grooving bottom is to have made up circular-arc and shape straight line shape, coupling with following advantage can be provided, that is: can eliminate coupling that grooving bottom only forms with straight line shape and grooving bottom only with the shortcoming that coupling was had of circular-arc formation, and absorb both sides' advantage.
That is, only compare for the coupling of straight line shape with grooving bottom, the grooving bottom only be circular-arc coupling a fixing part intensity greatly, transmitting torque and torsional rigid be big.In addition, manufacturing is also easy.On the contrary, because the engagement portion is not flexible, therefore a little less than the binding strength of axle.
The application's invention, because the part of grooving base diameter directional profile is circular-arc, therefore only compare for the coupling of straight line shape with the grooving bottom and have following advantage: the intensity of axle fixing part is big, transmitting torque and torsional rigid are big, and manufacturing time is also lacked.In addition, because the part of grooving bottom is a straight line shape, therefore only to compare the engagement portion crooked easily for circular-arc coupling with the grooving bottom, its result, and the binding strength of axle strengthens.
Claims (1)
1. coupling has: the axle hole, in order to stationary axle; Slitting slot be arranged in parallel with this axle hole; The axle fixing part, by with this slitting slot to direction fastening fastening use the bolt rectangular with described axle, thereby described slitting slot distortion is attached on described, it is characterized in that:
The axle right angle orientation of described axle fixing part is provided with the transection slot that can make described slitting slot distortion,
The residual part of described transection slot is that the boundary is divided into different equal portions with described slitting slot,
With the axle center is the boundary, in the diametric(al) section of described transection slot bottom, is circular-arc from the near side of described slitting slot, is straight line shape from a slitting slot side far away.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010076885A JP5236678B2 (en) | 2010-03-30 | 2010-03-30 | Shaft coupling |
| JP2010-076885 | 2010-03-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102207135A true CN102207135A (en) | 2011-10-05 |
Family
ID=44696136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100447153A Pending CN102207135A (en) | 2010-03-30 | 2011-02-24 | Coupler |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP5236678B2 (en) |
| KR (1) | KR101682172B1 (en) |
| CN (1) | CN102207135A (en) |
| TW (1) | TWI513921B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107989915A (en) * | 2017-09-29 | 2018-05-04 | 镇江索达联轴器有限公司 | A kind of shaft coupling easy to axis connection |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1047365A (en) * | 1996-08-08 | 1998-02-17 | Hitoshi Nakamura | Flexible coupling |
| WO1998009090A1 (en) * | 1996-08-30 | 1998-03-05 | Reliance Gear Company Limited | Flexible coupling |
| JP2001295851A (en) * | 2000-04-12 | 2001-10-26 | Nabeya Bi-Tech Kk | Coupling |
| JP2005273790A (en) * | 2004-03-25 | 2005-10-06 | Miki Pulley Co Ltd | Flexible shaft coupling |
| JP2007113779A (en) * | 2005-09-20 | 2007-05-10 | Tsubaki Emerson Co | Shaft coupling |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3917424A (en) * | 1973-07-16 | 1975-11-04 | Cyclo Index Corp | Clamping device for couplings |
| CN2685638Y (en) * | 2003-11-06 | 2005-03-16 | 上海交通大学 | Grooving elastic coupling |
-
2010
- 2010-03-30 JP JP2010076885A patent/JP5236678B2/en active Active
-
2011
- 2011-01-26 TW TW100102795A patent/TWI513921B/en active
- 2011-02-23 KR KR1020110015920A patent/KR101682172B1/en active IP Right Grant
- 2011-02-24 CN CN2011100447153A patent/CN102207135A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1047365A (en) * | 1996-08-08 | 1998-02-17 | Hitoshi Nakamura | Flexible coupling |
| WO1998009090A1 (en) * | 1996-08-30 | 1998-03-05 | Reliance Gear Company Limited | Flexible coupling |
| JP2001295851A (en) * | 2000-04-12 | 2001-10-26 | Nabeya Bi-Tech Kk | Coupling |
| JP2005273790A (en) * | 2004-03-25 | 2005-10-06 | Miki Pulley Co Ltd | Flexible shaft coupling |
| JP2007113779A (en) * | 2005-09-20 | 2007-05-10 | Tsubaki Emerson Co | Shaft coupling |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107989915A (en) * | 2017-09-29 | 2018-05-04 | 镇江索达联轴器有限公司 | A kind of shaft coupling easy to axis connection |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201135094A (en) | 2011-10-16 |
| JP5236678B2 (en) | 2013-07-17 |
| KR20110109833A (en) | 2011-10-06 |
| KR101682172B1 (en) | 2016-12-02 |
| JP2011208722A (en) | 2011-10-20 |
| TWI513921B (en) | 2015-12-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: Kyoto City, Kyoto Prefecture, Nagaoka Applicant after: TSUBAKI E&M CO. Address before: Kyoto City, Kyoto Prefecture, Nagaoka Applicant before: Tsubaki Emerson Co., Ltd. |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: TSUBAKI EMERSON CO., LTD. TO: TSUBAKI E +M |
|
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20111005 |