CN101718308A - Decelerator and mounting structure of decelerator to object machine - Google Patents
Decelerator and mounting structure of decelerator to object machine Download PDFInfo
- Publication number
- CN101718308A CN101718308A CN200910179042A CN200910179042A CN101718308A CN 101718308 A CN101718308 A CN 101718308A CN 200910179042 A CN200910179042 A CN 200910179042A CN 200910179042 A CN200910179042 A CN 200910179042A CN 101718308 A CN101718308 A CN 101718308A
- Authority
- CN
- China
- Prior art keywords
- output shaft
- mentioned
- driven shaft
- space portion
- speed reducer
- 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
Images
Classifications
-
- 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
- F16D1/10—Quick-acting couplings in which the parts are connected by simply bringing them together axially
- F16D1/104—Quick-acting couplings in which the parts are connected by simply bringing them together axially having retaining means rotating with the coupling and acting only by friction
-
- 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
- F16D2300/00—Special features for couplings or clutches
- F16D2300/06—Lubrication details not provided for in group F16D13/74
Abstract
The invention provides a decelerator which effectively prevents wearing and simplifies operation of the decelerator to a driven shaft of the object machine during embedding or running; the decelerator (GM1) for driving the driven shaft (28) of the object machine has a through hole (24h) holding the driven shaft (28); the driven shaft (28) has an output shaft (24) capable of delivering its rotation through a key (shaped engagement) (32); and from the end portion (24B) of the output shaft (24) along the output shaft (24), a space portion (SP1) maintaining a grease (G1) is disposed between inner periphery (24A) of the output shaft (24) and outer periphery (28A) of the driven shaft.
Description
The application advocates the preference based on the Japanese patent application of on October 9th, 2008 application 2008-262393 number.The full content of this application is quoted in this manual by reference.
Technical field
The present invention relates to speed reducer and speed reducer mounting structure to object machinery.
Background technique
In patent documentation 1, disclose the structure that the output shaft of the hollow of speed reducer is directly embedded into the driven shaft of object machinery.In the document,, propose to utilize the friction method that links and the method for utilizing based on the shape engaging of key that do not have the gap about the binding between this driven shaft and the output shaft.
Patent documentation 1: TOHKEMY 2001-99177 communique
But, conclude the method that links above-mentioned driven shaft and output shaft by friction, not only when the installation of speed reducer, after installation, also need suitably to manage all the time mounting torque.Therefore, exist speed reducer to the installation of object machinery and keep the problem of management trouble.
On the other hand, utilization is based on the engaging of the shape of key and link the method for driven shaft and output shaft, because the residual micro-gap that causes of difference in size by axle and axle, and the micro-gap of the engagement portion of shape are easy to generate wear problems inevitably so have.This be because, need to keep heavy speed reducer and aim at the axle center of driven shaft and this output shaft and this speed reducer is embedded into driven shaft, need between the external diameter of the internal diameter of output shaft and driven shaft, guarantee corresponding " difference in size ".Guarantee the easiness and the anti-wear relation that is in balance that embed.Set difference in size significantly as if the preferential easiness that embeds, then more be easy to generate wearing and tearing.If set difference in size lessly, though be difficult to produce wearing and tearing, embedding operation becomes extremely difficult.
Summary of the invention
The present invention finishes for the problem of eliminating above-mentioned existence, and its problem is, prevents the generation of wearing and tearing effectively, and simplifies the maintenance of speed reducer when the embedding of the driven shaft of object machinery or running in the lump.
The speed reducer of the driven shaft of driven object machinery of the present invention possesses the output shaft of hollow, and this output shaft inserts for the driven shaft of above-mentioned object machinery, has the gap with this driven shaft and be combined into can transferring power; Along this output shaft, between the periphery of interior week of this output shaft and above-mentioned driven shaft, guarantee that the space portion that can keep lubricating grease is arranged from the end of this output shaft, solve above-mentioned problem thus.
In the present invention, between the periphery of interior week of the output shaft of hollow and object machinery, guarantee that the space portion that can keep lubricating grease is arranged, thus air can not to than this space portion by axial inboard the intrusion.Therefore, be combined into even driven shaft and output shaft have the gap can transferring power structure, also can be with the generation that continues to prevent stably in a long term to wear and tear.
In addition, this space portion is formed near the end of output shaft, so the existence by this space portion increases in the outer circumference diameter of the object machinery of the end of output shaft with in the difference of interior all diameters of the end face of output shaft.Therefore, speed reducer is extremely easy to the loading of object machinery.Therefore, than space portion by axially inboard, can unhinderedly minification be poor on the contrary than the past, be difficult to more produce wearing and tearing, and also produce the worry of idle running or swing etc.
And in the present invention, according to the aim of invention, the parts of only implementing so-called " chamfering " processing are not included in the notion of " space portion " of the present invention.Radius R when usually, carrying out chamfering is 5% a radius of the internal diameter (diameter) less than axle.For example, when the internal diameter of the hollow portion of output shaft (diameter) was 15mm～55mm, chamfer radius was about 0.5mm～2.5mm, even greatly also be less than 5%.Therefore, the chamfering of this scope is different with the technical meaning of " space portion " of the present invention.
According to the present invention, can prevent the generation of wearing and tearing effectively, and can simplify embedding and the maintenance of speed reducer to the driven shaft of object machinery.
Description of drawings
Fig. 1 is the top plan view of a part of the reducing motor (speed reducer) of an expression example of using embodiments of the present invention.
Fig. 2 be the expression lubricating grease that keeps above-mentioned reducing motor space portion Fig. 1 to the amplification profile of looking the II part.
Fig. 3 is the sectional drawing that is equivalent to Fig. 2 of other examples of representation space portion.
Fig. 4 represents to set up the sectional drawing that is equivalent to Fig. 2 of the example of v shaped ring.
Among the figure: GM1-reducing motor, 16-motor, 18-speed reducer, 20-motor casing, 22-the decelerator body, 24-output shaft (quill shaft), week in the 24h-through hole, 24A-, 24B-end, 24C-end face, 28-driven shaft, 28A-periphery, 28B-ladder surface, 32-key.
Embodiment
Below, at length describe with reference to the example of accompanying drawing embodiments of the present invention.
Fig. 1 is the local concise and to the point top plan view of the reducing motor (speed reducer) of an expression example of using embodiments of the present invention.Fig. 2 is that it is to the amplification profile of looking the II part.
This reducing motor GM1 mainly is made of motor 16 and speed reducer 18.Motor 16 possesses motor casing 20, and speed reducer 18 possesses the decelerator body 22.The decelerator body 22 rotations are supported with the output shaft 24 of hollow freely.
As be shown in greater detail in Fig. 2, between the periphery 28A of the driven shaft 28 of interior all 24A of output shaft 24 and object machinery, guaranteed to keep the space portion SP1 of lubricating grease G1.In this embodiment, the length L s1 of the axial X of space portion SP1 be set at the through hole 24h of output shaft 24 (space portion PS 1 beyond) radius Hr1 about 1/2.For example, if internal diameter (Hr1e * 2) is the axle of 15mm, then be about 3～5mm, if internal diameter (Hr1e * 2) is the axle of 55mm, then be about 5～10mm.This is because consider: even lubricating grease G1 is dry a little, also prevent reliably air to than this space portion SP1 by axial inboard the intrusion, and anti-wear; Obviously greater than above-mentioned common chamfering R, with respect to the radius 0.5mm～2.5mm of the axle of the internal diameter of this size.
The shape of space portion SP1 be along the axial X of output shaft 24 more towards the end of this output shaft 24 24B, the height SPh1 of the radial direction R of this space portion SP1 increases more.As its result, at the radius Hr1e of the through hole 24h of this output shaft 24 of the end face 24C of output shaft 24 part, than the only big Δ 1 of radius Hr1 (considering then to be 2 times amount of Δ 1) of the part beyond the space portion SP1 of through hole 24h with diameter.For example, when internal diameter (Hr1e * 2) was 15mm～55mm, Δ 1 became about 1.5mm～5.5mm (internal diameter about 10%).This is also obviously greater than 0.5mm～2.5mm of chamfer radius R (internal diameter about 5%).Thus, gap between the driven shaft 28 of near output shaft the axial central part 24 and object machinery still is maintained in (be difficult to produce wearing and tearing) micro-gap about 0.6mm, near the end of the particularly output shaft 24 between two parts 24,28, can guarantee lubricating grease G1 in a large number, and, obtain output shaft 24 and also become to the embedding of driven shaft 28 and very be easy to effect.Its result, for example bakery and confectionery is useful especially during as use in the factory that must split/clean this reducing motor GM1 continually.
In this embodiment, the driven shaft 28 of object machinery has the ladder surface 28B of the embedding terminal of restriction output shaft 24.Ladder surface 28B and driven shaft 28 are right angles, by with the end face 24C butt of output shaft 24, can stop up space portion SP1 (holding a concurrent post blockage mechanism).
The effect of this reducing motor GM1 then is described.
Reducing motor GM1 is to following the carrying out of assembling (embedding) of the driven shaft 28 of object machinery: make the axle center O1 of output shaft 24 aim at the axle center O2 of the driven shaft 28 of conveying means 26, reducing motor GM1 is taken and the through hole 24h of output shaft 24 is embedded in the driven shaft 28 of object machinery with key 32.
Before embedding, coat lubricating grease (G1) at the periphery 28A of driven shaft 28 or interior all 24A of (reaching) output shaft 24, as if the driven shaft 28 that reducing motor GM1 is assembled into object machinery, the lubricating grease of then coating (G1) is extruded and is filled in well in the space portion SP1 under this state.Output shaft 24 is embedded into the ladder surface 28B butt with driven shaft 28.
This space portion SP1 is formed near the end face 24C of output shaft 24, so existence by this space portion SP1, as a result of, at the radius Hr1e of the end face 24C of output shaft 24 through hole 24h part, output shaft 24 the only big Δ 1 of radius Hr1 than the position beyond the space portion SP1 of through hole 24h, speed reducer is very easy to the embedding/loading of object machinery.
Follow to embed and wiped away, in space portion SP1, seamlessly fill and keep lubricating grease G1 from the remaining lubricating grease (G1) that the end face 24C of ladder surface 28B and output shaft 24 overflows.
Keep the ladder surface 28B obstruction of the space portion SP1 of this lubricating grease G1, prevent the air intrusion by driven shaft 28.Therefore, suppress quality badness in time (particularly dry) or the chemistry variation of the lubricating grease G1 in the space portion SP1 effectively.Its result, the existence of the space portion SP1 by keeping this lubricating grease G1, the wearing and tearing between continuing to prevent stably in a long term interior periphery 24A, the 28A of output shaft 24 and driven shaft 28 and forming around the key that engages 32 of shape.
Its result can be taken into account over " guarantee embed easiness " and " anti-wear " of balance.
Then, the variation example to the formation of relevant space portion describes.
In the present invention, the concrete shape of space portion does not limit especially.As the shape of space portion, for example consider variation as shown in Figure 3.
In the example of the space portion SP2 of Fig. 3 (A) repack with grease G2, the axial substantial middle of this space portion SP2 at the height 52h of the radial direction of specific part A greater than height 52i, 52j at the radial direction of these axial both sides.That is, the specific part A at the space portion SP2 of the through hole 62h of output shaft 62 as a result of is formed with lubricating grease and accumulates portion 52.Accumulate the existence of portion 52 by this lubricating grease,, also can guarantee the absolute magnitude of lubricating grease G2 more, can suppress the quality badness of lubricating grease G2 more even the axial length L s2 of space portion SP2 is identical with the axial length L s1 of the space portion SP1 of previous examples.
The shape that lubricating grease accumulates portion 52 is not limited to this shape.In addition, the lubricating grease axial formation position (axial position of specific part A) of accumulating portion 52 also is not limited to the position of Fig. 3 (A).The axial formation position that lubricating grease accumulates portion 52 is made as space portion SP2 axially the most inboardly also obtains same action effect.The spatial form that becomes base also is not limited to the example of Fig. 3, for example also can form lubricating grease at Fig. 3 described later (B) and accumulate portion.And for being the part of same section on or the function identical with before mode of execution, symbol also marks identical symbol.In the mode of execution afterwards too.
The example of the lubricating grease G4 of the space portion SP4 of Fig. 3 (B), because the opening of the through hole 64h of output shaft 64 is big, so embed output shaft 64 easily, and the axial length L s4 of space portion SP4 is longer, so can do one's utmost to prevent to be positioned at the quality badness of the innermost part of lubricating grease G4, also obtain effective inhibitory action for wearing and tearing.
In the present invention, though the obstruction of space portion may not be essential, the quality badness of the words lubricating grease that stops up is few, so preferred.In above-mentioned example, driven shaft 28 utilizes ladder surface 28B as blockage mechanism, when but driven shaft does not have ladder surface, for example shown in Fig. 4 (A), set up the v shaped ring (elastic ring: section shape can be a V-shape) 70 that is used to stop up space portion SP1 and get final product.V shaped ring 70 is connected to the periphery 29A of driven shaft 29 of object machinery and the end face 24C of output shaft 24.And the SP11 of short space portion that surrounds at the periphery 29A by the end face 24C of v shaped ring 70, output shaft 24 and driven shaft 29 also repack with grease G11 gets final product.As a result of, the space portion of repack with grease G1, G11 becomes SP1+SP11.
Like this, by configuration v shaped ring 70,72,, also can stop up space portion SP1, SP3 and interdict air even do not have ladder surface at driven shaft 29.Its result can suppress the quality badness of lubricating grease G1, G11, G3, G13, further continues the anti-wear effect of long term maintenance.
And in the example of Fig. 4 (B), the mode of execution with before Fig. 2 is identical basically, and ladder surface 28B stops up space portion SP1.Therefore, we can say does not need v shaped ring, but the further property stopped up and dispose v shaped ring 74 of expectation, and this v shaped ring 74 is connected to the base portion outer circumferential face 28D of driven shaft 28 of object machinery and the end face 24C ground of output shaft 24 disposes.In addition, at the SP21 of short space portion that forms by v shaped ring 74 existence also repack with grease G21.
Its result, the lubricating grease G1 that is filled in the space portion SP1 is roughly sealed fully, continues to keep for a long time the deterioration of its quality minimumly.Therefore, antiwear effect is extremely high.
And, like this, consider various variations and say that comprehensively in the present invention, mode of execution shown in Figure 2 is most preferably.This be because, between output shaft and the driven shaft, particularly can guarantee lubricating grease G1 in a large number with sealing state near the end of output shaft, and the space portion of " no ladder " convergence, so output shaft to the embedding of driven shaft very easily and can finish sleekly.On this meaning, we can say that the mode of execution of Fig. 2 is taken into account easiness anti-wear and that insert most effectively.
Industrial applicibility
Such as the deceleration device of conveyer, can be used as on the driven shaft that is directly installed on object machinery and the deceleration device utilization used.
Claims (6)
1. speed reducer, the driven shaft of driven object machinery is characterized in that,
The output shaft that possesses hollow, this output shaft inserts for the driven shaft of above-mentioned object machinery, and has the gap with this driven shaft and be combined into can transferring power;
Along this output shaft, between the periphery of interior week of this output shaft and above-mentioned driven shaft, guarantee that the space portion that can keep lubricating grease is arranged from the end of this output shaft.
2. speed reducer as claimed in claim 1 is characterized in that,
The height of the radial direction of above-mentioned space portion is axially big more towards the end of this output shaft more along above-mentioned output shaft.
3. speed reducer as claimed in claim 1 or 2 is characterized in that,
Above-mentioned space portion axially on the height of radial direction of particular portion office greater than height at the radial direction of the axial both sides of this specific part.
4. a speed reducer is to the mounting structure of object machinery, and above-mentioned speed reducer is each the described speed reducer in the claim 1～3, it is characterized in that,
This mounting structure possesses the blockage mechanism that is used to stop up above-mentioned space portion.
5. speed reducer as claimed in claim 4 is characterized in that to the mounting structure of object machinery,
The driven shaft of above-mentioned object machinery has the ladder surface of the embedding terminal of the above-mentioned output shaft of restriction,
This ladder surface is held a concurrent post above-mentioned blockage mechanism.
6. speed reducer as claimed in claim 4 is characterized in that to the mounting structure of object machinery,
Above-mentioned blockage mechanism is an elastic ring, and this elastic ring is connected to the periphery of above-mentioned driven shaft of above-mentioned object machinery and the end face of above-mentioned output shaft.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008262393A JP5273456B2 (en) | 2008-10-09 | 2008-10-09 | Mounting structure of speed reducer to counterpart machine |
| JP262393/2008 | 2008-10-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101718308A true CN101718308A (en) | 2010-06-02 |
Family
ID=42216417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910179042A Pending CN101718308A (en) | 2008-10-09 | 2009-10-09 | Decelerator and mounting structure of decelerator to object machine |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP5273456B2 (en) |
| KR (1) | KR101178050B1 (en) |
| CN (1) | CN101718308A (en) |
| TW (1) | TWI431206B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103883678A (en) * | 2014-04-03 | 2014-06-25 | 重庆市璧山爱华有限责任公司 | Speed reducer special for cooling tower and air cooler |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6111563Y2 (en) * | 1980-06-16 | 1986-04-11 | ||
| JPS58150662U (en) * | 1982-04-02 | 1983-10-08 | 本田技研工業株式会社 | Belt type continuously variable transmission |
| JP2001099177A (en) * | 1999-09-28 | 2001-04-10 | Tsubakimoto Chain Co | Reduction gear provided with friction tightening implement in hollow output shaft |
| JP2001330045A (en) * | 2000-05-22 | 2001-11-30 | Koyo Seiko Co Ltd | Shaft coupling |
| JP2003136908A (en) * | 2001-10-30 | 2003-05-14 | Nsk Ltd | Bearing unit for driving wheel |
-
2008
- 2008-10-09 JP JP2008262393A patent/JP5273456B2/en active Active
-
2009
- 2009-09-24 KR KR1020090090375A patent/KR101178050B1/en active IP Right Grant
- 2009-10-08 TW TW098134136A patent/TWI431206B/en active
- 2009-10-09 CN CN200910179042A patent/CN101718308A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| TWI431206B (en) | 2014-03-21 |
| KR20100040246A (en) | 2010-04-19 |
| KR101178050B1 (en) | 2012-08-29 |
| TW201014991A (en) | 2010-04-16 |
| JP5273456B2 (en) | 2013-08-28 |
| JP2010091023A (en) | 2010-04-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8210752B2 (en) | Wheel supporting device | |
| CN103851092B (en) | The connecting arrangement of axle | |
| US9382949B2 (en) | Shaft coupling structure | |
| CN101243260A (en) | Tolerance compensating connector | |
| CN101713437A (en) | Structure for supporting shaft and reduction apparatus | |
| CN103534906A (en) | Concentric multi-axis actuator | |
| CN102240687A (en) | Energy-saving rotary stirring die box of wire drawing machine | |
| CN101718308A (en) | Decelerator and mounting structure of decelerator to object machine | |
| CN101927496B (en) | Power transmission device | |
| CN102555789A (en) | Mechanical intelligent adaptive double-automatic speed changer driving assembly | |
| CN102518783B (en) | Double-screw extruder reduction gear box provided with tandem thrust bearing pre-loading device | |
| CN102278394B (en) | Bearing type overrunning clutch | |
| US20160090967A1 (en) | Wind power gearbox | |
| CN102319753A (en) | Rotary stirring mould box for wire drawing machine | |
| CN201982541U (en) | One-way clutch for high speed motor of electric vehicle | |
| CN103982599A (en) | Speed reduction apparatus | |
| CN205780361U (en) | Highly corrosion resistant type hub-bearing unit | |
| CN103511477A (en) | Workpiece-shaping tool assembly | |
| JP4915063B2 (en) | Method for manufacturing wheel-supporting bearing unit | |
| CN201277318Y (en) | Spline output anti-rust apparatus of vertical planet speed reducer | |
| CN201554787U (en) | Clamp ring type limit cross package assembly structure | |
| CN216967613U (en) | Device for adjusting torque of cigarette packaging equipment | |
| CN101649873A (en) | External star-wheel type overrunning clutch for loading machine | |
| CN202480209U (en) | Spindle assembly for two-stage vacuum extruder | |
| CN2280074Y (en) | Core-less supporting roller |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20100602 |