CN104633048B - Combined type radial profile-modified gear - Google Patents
Combined type radial profile-modified gear Download PDFInfo
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- CN104633048B CN104633048B CN201510068188.8A CN201510068188A CN104633048B CN 104633048 B CN104633048 B CN 104633048B CN 201510068188 A CN201510068188 A CN 201510068188A CN 104633048 B CN104633048 B CN 104633048B
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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
- F16H—GEARING
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/02—Toothed members; Worms
- F16H55/14—Construction providing resilience or vibration-damping
-
- 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
- F16H—GEARING
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/02—Toothed members; Worms
- F16H55/17—Toothed wheels
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gears, Cams (AREA)
Abstract
The invention discloses a combined type radial profile-modified gear which comprises a plurality of annular tooth sheets. The tooth sheets with identical tooth numbers and thickened tooth profiles are sequentially combined with one another, teeth of the tooth sheets are arranged on the inner circumferences of the annular tooth sheets, the tooth sheets include outer tooth sheets and inner tooth sheets, the inner tooth sheets are positioned between the two outer tooth sheets, vibration attenuation and noise reduction sheets are bonded between the adjacent tooth sheets, a plurality of mounting holes for fixing the tooth sheets are arranged on rings of the tooth sheets, the diameters of tooth tip circles of the tooth sheets and the diameters of tooth root circles of the tooth sheets are progressively increased or decreased along the same axial direction of the gear, and the inner tooth sheets, the outer tooth sheets and the vibration attenuation and noise reduction sheets form a complete radial profile-modified inner gear structure with a variable tooth thickness. The combined type radial profile-modified gear has the advantages that the tooth sheets are combined with one another to form the gear with the variable tooth thickness, and accordingly the gear is good in machining technology; the vibration attenuation and noise reduction sheets are bonded between the tooth sheets, so that mesh vibration of the gear can be suppressed fundamentally, transmission noise can be lowered, and the service life of a gear pair can be prolonged.
Description
Technical field
The present invention relates to gear transmission technology field, more particularly to a kind of modular radial profile modified gear, gear tool
There is complete change transverse tooth thickness radial shift inner gear structure.
Background technology
Gear-box as modern automobile industry important drive disk assembly, be the main vibration source and noise in car running process
One of source, its service behaviour has important influence to vehicle.Automobile vendor also pay much attention to reduce gear-box vibration and
Noise, and using it as new car bright spot.Gear engagement produces vibration, is delivered on gear housing by axle and bearing block, leads
Casing vibration is caused, while radiated noise.The vibration of gear engagement interface is the decisive excitation of construct noise, how to suppress engagement
The vibration of generation, reduces noise from root, with important engineering application value.
Variable tooth thickness gear, its modification coefficient changes according to certain rules in the axial direction, and tooth form is formed necessarily in axis direction
Taper.Meshing backlass can be just adjusted by adjusting its axial displacement, tune gap or the gap purpose that disappears is reached, precision drive is realized, because
This has broad application prospects in precision machinery people and elaborate servo etc. are driven.But this Gear Processing is relatively difficult, and
Available without the lathe by the design of its forming principle, production cost is very high, therefore solution under existing level of processing at home
Its processing problems, the application for promoting this kind of gear is significant.On the other hand, the variable tooth thickness gear of prior art is equal
Using overall structure, the vibration noise produced by gear engagement is larger, the noise problem of variable tooth thickness gear is solved, for promoting this
The application for planting gear is also significant.
The content of the invention
The purpose of the present invention is to solve the variable tooth thickness gear processing difficulties of prior art and the change transverse tooth thickness tooth of prior art
The big problem of wheel gearing noise provides a kind of easy to process and meshing noise low modular radial profile modified gear.
The present invention is that a kind of modular radial profile modified gear is described to solve the technical scheme that above-mentioned technical problem is used
If gear has the identical number of teeth by dry plate and the annular gear piece sequential combination with thickening tooth form is constituted, the gear teeth of gear piece are set
On the inner periphery of annular gear piece, the gear piece include located at gear axial direction two ends outer gear piece and positioned at two outer gear pieces it
Between some inner blades, more than the thickness of inner blade, being glued between adjacent gear piece has vibration and noise reducing piece for the thickness of outer gear piece,
The annulus of gear piece is provided with some fixing holes for fixing gear piece, the equal edge of tip diameter and root diameter of the gear piece
The same axial increasing or decreasing of gear, inside and outside gear piece and vibration and noise reducing piece constitute a complete change transverse tooth thickness radial shift internal tooth
Wheel construction.If change transverse tooth thickness X-gear of the invention by dry plate there is the annular gear piece of thickening tooth form to combine constituting, tooth
Piece includes outer gear piece and inner blade, wherein respectively setting one piece of outer gear piece in the both ends of the surface of gear axial direction, is set between outer gear piece
Some inner blades, are glued vibration and noise reducing piece between adjacent gear piece, the basic structure of vibration and noise reducing piece is adapted with gear piece, inside and outside
Gear piece and vibration and noise reducing piece are fixed by the screw or rivet joint in fixing hole, so as to constitute a complete change transverse tooth thickness footpath
To displacement internal gear.Using gear piece combination bonding mode constitute become transverse tooth thickness radial shift internal gear, due to single gear piece thickness compared with
It is small, therefore processing request is easily reached, Gearmaking Technology is good, and Hardened gear face and high accuracy can be just completed using simple technique
Variable tooth thickness gear processing, solve the problems, such as the variable tooth thickness gear processing difficulties of prior art, transmission device can be improve
Bearing capacity and running precision.Here thickening tooth form refer to the gear teeth its transverse tooth thickness on gear piece in the axial direction of gear by gear piece
One incrementally increased towards another side.In addition, be glued between the adjacent gear piece of the present invention having vibration and noise reducing piece, vibration and noise reducing piece
With high damping characteristic, it is glued between gear piece, can be effectively suppressed the vibration that gear engagement causes, i.e., is subtracted from root
The mesh vibration of few gear, reduces rotational noise, so as to reduce noise.Therefore structure of the invention can solve prior art
The big problem of variable tooth thickness gear gearing noise, while the service life of gear pair can also be extended, is particularly well-suited to high-precision
Transmission device.In addition, the dual fastening means that the present invention is fixed by splicing and screw or rivet, it can be ensured that the entirety of gear
Intensity.
Preferably, the gear teeth of the gear are straight-tooth or helical teeth, the modification coefficient of the gear is in axially line along gear
Property change.
Preferably, the thickness of all inner blades is equal, the thickness of all vibration and noise reducing pieces is equal and its thickness is internal tooth
The 15% to 30% of piece thickness, the thickness of outer gear piece is equal and its thickness is 3 to 5 times of inner blade thickness.For identical material
Vibration and noise reducing piece, using the effect of vibration and noise reduction that can improve of larger thickness, but can influence the bulk strength of gear；And vibration damping drops
Make an uproar piece thickness it is too small, then effect of vibration and noise reduction is poor, generally from vibration and noise reducing piece thickness for inner blade thickness 15% to
30% is proper, the numerical value can also according to different operating mode gears be actually needed and unlike material vibration and noise reducing piece noise reduction
Characteristic considers selection.Outer gear piece of the invention undertakes compression inner blade and vibration and noise reducing in addition to the function of undertaking gear, also
The function of piece, therefore the thickness of outer gear piece is generally bigger than the thickness of inner blade, so may also be ensured that the edge strength of gear,
Avoid being located at outermost gear piece cracking or crimp.
Gear piece of the invention can also use following several further improved structure forms with vibration and noise reducing piece：
1st, the thickness of all inner blades is equal, and the thickness positioned at the vibration and noise reducing piece of the larger inner blade side of transverse tooth thickness is more than
Positioned at the thickness of the vibration and noise reducing piece of the less inner blade side of transverse tooth thickness, the thickness of vibration and noise reducing piece becomes along gear is axially linear
Change, the minimum thickness of vibration and noise reducing piece is the 15% to 20% of inner blade thickness, the maximum gauge of vibration and noise reducing piece is inner blade thickness
The 25% to 30% of degree, the thickness of outer gear piece is equal and its thickness is 3 to 5 times of inner blade thickness.In the technical program, gear
In each inner blade thickness it is equal, the thickness of vibration and noise reducing piece is different, near the vibration damping of the larger inner blade side of transverse tooth thickness
The thickness of noise reduction piece is larger, and the thickness near the vibration and noise reducing piece of the less inner blade side of transverse tooth thickness is smaller, and vibration and noise reducing piece
Thickness along gear axially linear change.It is relatively large that this allows for the larger inner blade of transverse tooth thickness its appearance and size, same
Its resonant frequency is relatively low under the thickness of sample, and the vibration relatively low for frequency of the larger vibration and noise reducing piece of thickness have preferably decline
Subtract ability, so can on the premise of vibration and noise reducing piece integral thickness is not increased broadening gear vibration suppression frequency band, reduce
The rotational noise of gear, so as to reduce noise.
2nd, the thickness of the thickness of the less inner blade of the transverse tooth thickness inner blade larger more than transverse tooth thickness, the thickness of maximum gauge inner blade
Degree is 1.5 to 2 times of the thickness of minimum thickness inner blade, and the thickness of inner blade is along gear axially linear change, all vibration dampings
The thickness of noise reduction piece is equal and its thickness is the 10% to 20% of maximum inner blade thickness, and the thickness of outer gear piece is equal and its thickness is
2 to 3 times of the thickness of maximum inner blade.In the technical program, the thickness of each vibration and noise reducing piece is equal in gear, and interior
The thickness of gear piece is different, and the thickness of the less inner blade of transverse tooth thickness is larger, and the thickness of the larger inner blade of transverse tooth thickness is smaller, and this is to consider
To the less inner blade of transverse tooth thickness, its appearance and size is relatively small, and its resonant frequency is higher under same thickness, appropriate to increase thick
Degree can decline its resonant frequency, it is to avoid the noise band of gear is wide, facilitate views with the vibration damping drop of single damping characteristic
Piece of making an uproar eliminates the rotational noise of gear, so as to reduce noise.
3rd, the thickness of the thickness of the less inner blade of the transverse tooth thickness inner blade larger more than transverse tooth thickness, the thickness of maximum gauge inner blade
Degree is 1.5 to 2 times of the thickness of minimum thickness inner blade, and the thickness of inner blade is along gear axially linear change；Positioned at transverse tooth thickness
The thickness of the vibration and noise reducing piece of larger inner blade side is more than the vibration and noise reducing piece positioned at the less inner blade side of transverse tooth thickness
Thickness, the thickness of maximum gauge vibration and noise reducing piece is 1.5 to 2 times of the thickness of minimum thickness vibration and noise reducing piece, vibration and noise reducing piece
Thickness along gear axially linear change, the maximum gauge of vibration and noise reducing piece is the 15% to 30% of maximum inner blade thickness, outward
The thickness of gear piece is equal and its thickness is 2 to 3 times of thickness of maximum inner blade.It is foregoing 1,2 two kind of side in the technical program
The integration scenario of case, its operation principle is basically identical, and structure is relative complex, but with more preferable effect of vibration and noise reduction.
Preferably, inner blade includes the internal tooth chip architectures of two kinds of different hardness, its is hard for two kinds of inner blades of different hardness
The difference of angle value is the 10% to 15% of high rigidity inner blade hardness number, and the inner blade of two kinds of different hardness is alternately arranged, the internal tooth
The total quantity of piece is odd number, and its hardness of inner blade adjacent with outer gear piece higher than inner blade adjacent thereto, adopt by the outer gear piece
Use composite damping steel plate structure.Be conducive to the dispersion of the noise frequency point of inner blade using the inner blade of two kinds of different hardness, from
And reducing the noise peak of same frequency point, it is to avoid noise frequency is concentrated on a frequency, advantageously reduces gear noise
Maximum.The difference of hardness number here is the 10% to 15% of high rigidity inner blade hardness number, is with the inner blade hardness of high rigidity
On the basis of value, the hardness number of the inner blade of soft and the difference of high rigidity inner blade hardness number are hard relative to the inner blade of high rigidity
The percentage of angle value, for example, when the inner blade hardness number of high rigidity is HRC50, the then hardness of the inner blade of soft
It is HRC42.5- HRC45 to be worth；Two kinds of inner blades of different hardness can be the different material of two kinds of hardness, or same
Plant material and two kinds of different hardness are obtained by different heat treatment modes；And outer gear piece also may be used using composite damping steel plate structure
With effective propagation for suppressing vibration, so as to reduce noise.
Preferably, every vibration and noise reducing piece is made up of single damping material, gear is provided with two kinds by different damping characteristic
The vibration and noise reducing piece that constitutes of damping material, fissipation factor peak values two kinds of frequencies of correspondence of two kinds of vibration and noise reducing pieces, two kinds of vibration dampings
Noise reduction piece is alternately arranged between the gear piece of gear.For the gears of above-mentioned two kinds of different hardness inner blades of use, this skill
The structure of art scheme can be adapted to it, suppress to make an uproar accordingly using two kinds of vibration and noise reducing pieces with correspondence damping characteristic
Sound, can reach good noise reduction.
Vibration and noise reducing piece can also use following structure type：
1st, every vibration and noise reducing piece is made up of single damping material, and gear is provided with the two or more resistances by different damping characteristic
The vibration and noise reducing piece that damping material is constituted, the corresponding different frequency of fissipation factor peak value of every kind of vibration and noise reducing piece, different damping is special
Property vibration and noise reducing piece between the gear piece of gear alternate cycles arrangement.The technical program is directed to three kinds and more than three kinds but total
Less than the vibration and noise reducing piece situation of gear piece gap number, such as vibration and noise reducing piece is three kinds to number, but the gear piece gap number of gear is six
It is individual, now three kinds of vibration and noise reducing pieces in the axial direction of gear using the arrangement mode of 1+2+3+1+2+3, this vibration and noise reducing piece
The plan of establishment is mainly used in broadening vibration and noise reducing piece frequency and suppresses scope, can be passed in the larger gear of some frequency noise scopes
Used in dynamic system.
2nd, every vibration and noise reducing piece is made up of single damping material, and the vibration and noise reducing piece of diverse location is by different resistances on gear
The damping material of damping characteristics is constituted, the every corresponding different frequency of the fissipation factor peak value of vibration and noise reducing piece, different damping characteristic
Frequency size of the vibration and noise reducing piece in the axial direction of gear as corresponding to fissipation factor peak value be arranged in order, it is less with transverse tooth thickness
What the frequency corresponding to the vibration and noise reducing piece that outer gear piece is close to its fissipation factor peak value was close to higher than the outer gear piece larger with transverse tooth thickness
Frequency corresponding to vibration and noise reducing piece its fissipation factor peak value.The technical program be using it is equal number of with gear piece gap number,
Suppress gear noise with different damping characteristic vibration and noise reducing piece, the plan of establishment of this vibration and noise reducing piece be also mainly for
Broadening vibration and noise reducing piece frequency suppresses scope, can be used in the larger gear train assembly of some frequency noise scopes.
Vibration and noise reducing piece of the invention can use polymer damping material, it would however also be possible to employ alloy damping material, different
The different frequency of the damping material of damping characteristic its fissipation factor peak value correspondence, can there is many selections.Such as macromolecule material
The corresponding frequency of ethylene propylene diene rubber in material is 750Hz or so, and butyl rubber is 450 Hz or so, and natural rubber is 580 Hz
Left and right, CD 2 chlorobutadiene-acrylonitrile copolymer is 250 Hz or so；Polyacrylate, polyurethane, epoxy resin can also be selected
And nitrile rubber etc..Damping alloy also has a large amount in variety, such as Al-Zn alloys, Mn-Cu alloys, Mg-Zi alloys and Ni-Ti alloys
Just there are various high-dampings such as Fe-Cr-Al, Fe-Al, Fe-Mo, Fe-W, Fe-Cr-Mo, Fe-Cr-Co to close Deng, iron-based damping alloy
Golden material, the description and its characteristic of vibration and noise reducing material belong to known technology, can be according to of the invention public when actually used
The system of selection opened simultaneously chooses suitable material and makes vibration and noise reducing piece according to the actual condition of gear or gear train.
Preferably, vibration and noise reducing piece is provided with frequency trim hole, described frequency trim hole is 3 to 6, along inner blade
Be arranged circumferentially, the frequency trim hole on adjacent two panels vibration and noise reducing piece shifts to install.Frequency is set on vibration and noise reducing piece
Rate fine setting hole can finely tune the damped frequency peak point position corresponding to vibration and noise reducing piece, so that vibration and noise reducing piece meets different
Frequency suppress to require that frequency trim hole can be arranged on the vibration and noise reducing piece of part, it is also possible to be arranged on all of vibration damping drop
Make an uproar on piece, when frequency trim hole is respectively provided with adjacent two panels vibration and noise reducing piece, frequency trim hole should be avoided to appear in gear
Same axial direction on, that is, avoid part gear piece both sides while there is the situation of cavity, prevent from causing new vibration.
The processing method of modular radial profile modified gear of the present invention is：By some sheet metals by the tooth form and size for specifying
Thickening gear piece is processed into, each gear piece is overlapped by the order alignment of regulation, and be glued vibration and noise reducing piece between gear piece, passed through
Screw is set in fixing hole or be fixed for all gear pieces by rivet, be finally constituted in a complete change transverse tooth thickness radial shift
Gear structure.
The beneficial effects of the invention are as follows：It efficiently solves the variable tooth thickness gear processing difficulties and existing skill of prior art
The big problem of the variable tooth thickness gear gearing noise of art, modular radial profile modified gear of the invention, in gear piece overlapping combinations mode
Gear is constituted, unlike material, different-thickness, and the sheet metal of different heat treatment state can be used to finish to form tooth
Piece, Gearmaking Technology is good, and Hardened gear face and the processing of high-precision variable tooth thickness gear can be just completed using simple technique, so that
Improve the bearing capacity and running precision of transmission device；And it is glued vibration and noise reducing piece between gear piece, gear is suppressed from root
Mesh vibration, reduce rotational noise, extend the service life of gear pair, be particularly well-suited to high-precision transmission device.
Brief description of the drawings
Fig. 1 is a kind of structural representation of modular radial profile modified gear of the present invention；
Fig. 2 is a kind of cross-sectional structure schematic diagram of internal gear of the present invention；
A kind of structural representation of Fig. 3 inner blades of the present invention；
A kind of structural representation of Fig. 4 vibration and noise reducing pieces of the present invention.
In figure：1. outer gear piece, 2. inner blade, 3. vibration and noise reducing piece, the 4. gear teeth, 5. fixing hole, 6. frequency trim hole, 7. riveting
Nail.
Specific embodiment
The invention will be further described with reference to the accompanying drawings and examples.
Embodiment 1
In the embodiment 1 shown in Fig. 1 Fig. 2, a kind of modular radial profile modified gear, if the gear has phase by 10
With the number of teeth and the annular gear piece sequential combination with thickening tooth form is constituted, the gear teeth of gear piece are arranged on the inner circle of annular gear piece
Zhou Shang, the gear piece includes the outer gear piece 1 and 8 inner blades 2 between two outer gear pieces located at gear axial direction two ends（See
Fig. 3）, the thickness of all inner blades is equal, and the thickness of outer gear piece is 4 times of inner blade thickness, is glued between adjacent gear piece
There is vibration and noise reducing piece 3,9 vibration and noise reducing pieces are set altogether, the thickness of the vibration and noise reducing piece is the 30% of inner blade thickness, gear piece
Annulus be provided with some fixing holes 5 for fixing gear piece, the tip diameter and root diameter of the gear piece are along tooth
The same axial direction of wheel is incremented by, and along gear axially linear change, inside and outside gear piece and vibration and noise reducing piece pass through the modification coefficient of gear
The one of rivet 7 being arranged in fixing hole is fixed, and inside and outside gear piece and vibration and noise reducing piece constitute a complete change transverse tooth thickness and radially become
Position internal spur gear structure.
Embodiment 2
The gear of embodiment 2 is helical gear, and the thickness of 7 inner blades in gear is equal, and vibration and noise reducing piece is 8, position
Dropped more than the vibration damping positioned at the less inner blade side of transverse tooth thickness in the thickness of the vibration and noise reducing piece of the larger inner blade side of transverse tooth thickness
Make an uproar the thickness of piece, along gear axially linear change, the minimum thickness of vibration and noise reducing piece is inner blade to the thickness of vibration and noise reducing piece
The 15% of thickness, the maximum gauge of vibration and noise reducing piece is the 30% of inner blade thickness, and the thickness of outer gear piece is equal and its thickness is interior
3 times of gear piece thickness, remaining and embodiment 1 are identical.
Embodiment 3
In embodiment 3, gear includes 9 inner blades and 10 vibration and noise reducing pieces, and inner blade has different thickness, tooth
The thickness of thick less inner blade is more than the thickness of the larger inner blade of transverse tooth thickness, and the thickness of maximum gauge inner blade is minimum thickness
1.8 times of the thickness of inner blade, the thickness of inner blade is along gear axially linear change, and the thickness of all vibration and noise reducing pieces is equal
And its thickness is the 18% of maximum inner blade thickness, the thickness of outer gear piece is equal and its thickness be maximum inner blade thickness 2.5
Times, remaining is identical with embodiment 1 or embodiment 2.
Embodiment 4
In example 4, gear includes 10 inner blades and 11 vibration and noise reducing pieces, and inner blade has different thickness,
The thickness of the thickness of the less inner blade of the transverse tooth thickness inner blade larger more than transverse tooth thickness, the thickness of maximum gauge inner blade is minimum thick
Spend the thickness of inner blade 1.6 times, the thickness of inner blade is along gear axially linear change；Vibration and noise reducing piece has different thickness
Degree, the thickness positioned at the vibration and noise reducing piece of the larger inner blade side of transverse tooth thickness is more than subtracting positioned at the less inner blade side of transverse tooth thickness
Shake the thickness of noise reduction piece, and the thickness of maximum gauge vibration and noise reducing piece is 1.7 times of the thickness of minimum thickness vibration and noise reducing piece, vibration damping
Along gear axially linear change, the maximum gauge of vibration and noise reducing piece is the 20% of maximum inner blade thickness to the thickness of noise reduction piece, outward
The thickness of gear piece is equal and its thickness is 2 times of thickness of maximum inner blade, and remaining and embodiment 1 or embodiment 2 are identical.
Embodiment 5
In embodiment 5, the total quantity of gear inner blade is odd number, including 11 inner blades and 12 vibration and noise reducing pieces,
Inner blade includes the internal tooth chip architectures of two kinds of different hardness, and two kinds of differences of the inner blade of different hardness its hardness number are in high rigidity
The 10% of gear piece hardness number, the inner blade of two kinds of different hardness is alternately arranged, adjacent with outer gear piece its hardness of inner blade be higher than with
Its adjacent inner blade, the outer gear piece uses composite damping steel plate structure.Two kinds of inner blades of different hardness of the present embodiment
It is that same material is obtained by different heat treatment modes, it is also possible to from the different material of two kinds of hardness.Embodiment 5 it is every
Piece vibration and noise reducing piece is made up of single damping material, and gear is provided with two kinds of vibration dampings being made up of the damping material of different damping characteristic
Noise reduction piece, fissipation factor peak values two kinds of frequencies of correspondence of two kinds of vibration and noise reducing pieces, two kinds of vibration and noise reducing pieces gear gear piece it
Between be alternately arranged, remaining and embodiment 1 or embodiment 2 or embodiment 3 or embodiment 4 are identical.
Embodiment 6
In embodiment 6, gear includes 5 inner blades and 6 vibration and noise reducing pieces, and every vibration and noise reducing piece is by single damping
Material is constituted, and gear is provided with three kinds of vibration and noise reducing pieces being made up of the damping material of different damping characteristic, every kind of vibration and noise reducing piece
Fissipation factor peak value correspondence not frequency, the vibration and noise reducing piece of the different damping characteristic alternate cycles cloth between the gear piece of gear
Put.The vibration and noise reducing piece of the present embodiment is three kinds, and the gear piece gap number of gear is six, axle of three kinds of vibration and noise reducing pieces in gear
Upwards using the arrangement mode of 1+2+3+1+2+3, remaining and embodiment 1 or embodiment 2 or embodiment 3 or embodiment 4 are identical.
Embodiment 7
In embodiment 7, gear includes 6 inner blades and 7 vibration and noise reducing pieces, and every vibration and noise reducing piece is by single damping
Material is constituted, and the vibration and noise reducing piece of diverse location is made up of the damping material of different damping characteristic on gear, every vibration and noise reducing
The fissipation factor peak value different frequencies of correspondence of piece, the vibration and noise reducing piece of different damping characteristic in the axial direction of gear by loss because
Frequency size corresponding to sub- peak value is arranged in order, its fissipation factor peak of vibration and noise reducing piece that outer gear piece less with transverse tooth thickness is close to
Frequency corresponding to the corresponding frequency of value is close to higher than the outer gear piece larger with transverse tooth thickness vibration and noise reducing piece its fissipation factor peak value
Rate, remaining and embodiment 1 or embodiment 2 or embodiment 3 or embodiment 4 are identical.
Embodiment 8
In embodiment 8, vibration and noise reducing piece is provided with frequency trim hole 6（See Fig. 4）, described frequency trim hole is 6,
Along being arranged circumferentially for inner blade, the frequency trim hole on adjacent two panels vibration and noise reducing piece shifts to install, and the present embodiment is subtracting
Shake and the structure type in frequency trim hole is set on noise reduction piece can be used on the vibration and noise reducing piece of any of the above described one embodiment,
The new embodiment of the present invention, frequency are just constituted using the vibration and noise reducing piece with frequency trim hole in the middle of above-described embodiment 1-7
Rate fine setting hole can be arranged on the vibration and noise reducing piece of part, it is also possible to be arranged on all of vibration and noise reducing piece.
Vibration and noise reducing piece of the invention can use polymer damping material, it would however also be possible to employ alloy damping material, different
The different frequency of the damping material of damping characteristic its fissipation factor peak value correspondence, can there is many selections.Such as macromolecule material
The corresponding frequency of ethylene propylene diene rubber in material is 750Hz or so, and butyl rubber is 450 Hz or so, and natural rubber is 580 Hz
Left and right, CD 2 chlorobutadiene-acrylonitrile copolymer is 250 Hz or so；Polyacrylate, polyurethane, epoxy resin can also be selected
And nitrile rubber etc..Damping alloy also has a large amount in variety, such as Al-Zn alloys, Mn-Cu alloys, Mg-Zi alloys and Ni-Ti alloys
Just there are various high-dampings such as Fe-Cr-Al, Fe-Al, Fe-Mo, Fe-W, Fe-Cr-Mo, Fe-Cr-Co to close Deng, iron-based damping alloy
Golden material, the description and its characteristic of vibration and noise reducing material belong to known technology, can be according to of the invention public when actually used
The system of selection opened simultaneously chooses suitable material and makes vibration and noise reducing piece according to the actual condition of gear or gear train.
The processing method of modular radial profile modified gear of the present invention is：Some thin slices are processed by the tooth form and size of regulation
Into gear piece, each gear piece is overlapped by the order alignment of regulation, and be glued vibration and noise reducing piece between gear piece, by fixing hole
Be fixed for all gear pieces by interior setting screw or rivet, is finally constituted a complete change transverse tooth thickness radial shift internal tooth rolling hitch
Structure.
If modular radial profile modified gear of the invention by dry plate there is the gear piece of thickening tooth form to combine constituting, gear piece includes
The some inner blades between outer gear piece and outer gear piece in the both ends of the surface of gear axial direction are arranged on, vibration damping is glued between adjacent gear piece
Noise reduction piece, inside and outside gear piece and vibration and noise reducing piece are fixed by the screw or rivet joint in fixing hole, thus constitute one it is whole
Body variable tooth thickness gear.Variable tooth thickness gear is constituted using overlapping combinations mode, because single gear piece thickness is smaller, therefore is easily reached
Processing request, Gearmaking Technology is good, can just complete Hardened gear face using simple technique and high-precision variable tooth thickness gear adds
Work, solves the problems, such as the variable tooth thickness gear processing difficulties of prior art.In addition, be equipped between the adjacent gear piece of the present invention subtracting
Shake noise reduction piece, and vibration and noise reducing piece has high damping characteristic, is located between gear piece, can effectively suppress what gear engagement caused
Vibration, i.e., reduce the mesh vibration of gear from root, rotational noise is reduced, so as to reduce noise.Therefore structure of the invention
Can solve the problems, such as that the variable tooth thickness gear gearing noise of prior art is big, while the service life of gear pair can also be extended,
It is particularly well-suited to high-precision transmission device.
In addition to the implementation, in the scope disclosed in claims of the present invention and specification, skill of the invention
Art feature or technical data can be reselected and combined, so as to constitute new implementation method, these present invention are without detailed
The implementation method of thin description is that those skilled in the art can just realize easily without creative work, therefore these are not detailed
The implementation method of description also should be regarded as specific embodiment of the invention and within protection scope of the present invention.
Claims (7)
1. a kind of modular radial profile modified gear, it is characterised in that：If the gear has the identical number of teeth and with change by dry plate
The annular gear piece sequential combination of thick tooth form is constituted, the gear teeth of gear piece（4）It is arranged on the inner periphery of annular gear piece, the tooth
Piece includes the outer gear piece located at gear axial direction two ends（1）And some inner blades between two outer gear pieces（2）, outer gear piece
More than the thickness of inner blade, be glued between adjacent gear piece has vibration and noise reducing piece to thickness（3）, the annulus of gear piece is provided with some
For fixing gear piece fixing hole（5）, the tip diameter and root diameter of the gear piece are incremented by along the same axial direction of gear
Or successively decrease, inside and outside gear piece and vibration and noise reducing piece constitute a complete change transverse tooth thickness radial shift inner gear structure；Inner blade includes
Two kinds of internal tooth chip architectures of different hardness, two kinds of differences of the inner blade of different hardness its hardness number are high rigidity inner blade hardness number
10% to 15%, the inner blade of two kinds of different hardness is alternately arranged, and the total quantity of the inner blade is odd number, adjacent with outer gear piece
Inner blade its hardness be higher than inner blade adjacent thereto, the outer gear piece uses composite damping steel plate structure；Every vibration damping drop
Piece of making an uproar is made up of single damping material, and gear is provided with two kinds of vibration and noise reducing pieces being made up of the damping material of different damping characteristic,
Two kinds of fissipation factor peak value two kinds of frequencies of correspondence of vibration and noise reducing piece, two kinds of vibration and noise reducing pieces replace cloth between the gear piece of gear
Put.
2. modular radial profile modified gear according to claim 1, it is characterised in that：The gear teeth of the gear be straight-tooth or
Helical teeth, the modification coefficient of the gear is along gear axially linear change.
3. modular radial profile modified gear according to claim 1, it is characterised in that：The thickness of all inner blades is equal,
The thickness of all vibration and noise reducing pieces is equal and its thickness is the 15% to 30% of inner blade thickness, and the thickness of outer gear piece is equal and its is thick
Degree is 3 to 5 times of inner blade thickness.
4. modular radial profile modified gear according to claim 1, it is characterised in that：The thickness of all inner blades is equal,
It is more than the vibration damping positioned at the less inner blade side of transverse tooth thickness positioned at the thickness of the vibration and noise reducing piece of the larger inner blade side of transverse tooth thickness
The thickness of noise reduction piece, along gear axially linear change, the minimum thickness of vibration and noise reducing piece is internal tooth to the thickness of vibration and noise reducing piece
The 15% to 20% of piece thickness, the maximum gauge of vibration and noise reducing piece is the 25% to 30% of inner blade thickness, and the thickness of outer gear piece is equal
And its thickness is 3 to 5 times of inner blade thickness.
5. modular radial profile modified gear according to claim 1, it is characterised in that：The thickness of the less inner blade of transverse tooth thickness
The thickness of the inner blade larger more than transverse tooth thickness, the thickness of maximum gauge inner blade is the 1.5 to 2 of the thickness of minimum thickness inner blade
Times, along gear axially linear change, the thickness of all vibration and noise reducing pieces is equal and its thickness is most imperial palace for the thickness of inner blade
The 10% to 20% of gear piece thickness, the thickness of outer gear piece is equal and its thickness is 2 to 3 times of thickness of maximum inner blade.
6. modular radial profile modified gear according to claim 1, it is characterised in that：The thickness of the less inner blade of transverse tooth thickness
The thickness of the inner blade larger more than transverse tooth thickness, the thickness of maximum gauge inner blade is the 1.5 to 2 of the thickness of minimum thickness inner blade
Times, the thickness of inner blade is along gear axially linear change；Positioned at the thickness of the vibration and noise reducing piece of the larger inner blade side of transverse tooth thickness
More than the thickness of the vibration and noise reducing piece positioned at the less inner blade side of transverse tooth thickness, the thickness of maximum gauge vibration and noise reducing piece is most to degree
1.5 to 2 times of the thickness of small thickness vibration and noise reducing piece, the thickness of vibration and noise reducing piece is along gear axially linear change, vibration damping drop
The maximum gauge of piece of making an uproar is the 15% to 30% of maximum inner blade thickness, and the thickness of outer gear piece is equal and its thickness is maximum inner blade
2 to 3 times of thickness.
7. the modular radial profile modified gear according to claim any one of 1-6, it is characterised in that：Set on vibration and noise reducing piece
There is frequency trim hole（6）, described frequency trim hole is 3 to 6, along being arranged circumferentially for inner blade, adjacent two panels vibration damping
Frequency trim hole on noise reduction piece shifts to install.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510068188.8A CN104633048B (en) | 2015-02-09 | 2015-02-09 | Combined type radial profile-modified gear |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510068188.8A CN104633048B (en) | 2015-02-09 | 2015-02-09 | Combined type radial profile-modified gear |
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| CN104633048B true CN104633048B (en) | 2017-05-17 |
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| CN105057996A (en) * | 2015-08-02 | 2015-11-18 | 衢州市优德工业设计有限公司 | Gearbox |
| CN105127698A (en) * | 2015-08-02 | 2015-12-09 | 衢州市优德工业设计有限公司 | Machining method for sheet part combination gear |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB256254A (en) * | 1925-07-29 | 1927-06-30 | Alfred Thomas Harman | Improved toothed gear wheel |
| GB326048A (en) * | 1929-04-02 | 1930-03-06 | Arthur Keighley | Improvements in and relating to laminated staggered tooth gears |
| US2228828A (en) * | 1938-12-29 | 1941-01-14 | Katakura Seishi Boseki Kabushi | Noiseless toothed wheel |
| US3988942A (en) * | 1975-04-28 | 1976-11-02 | Roland Offsetmaschinenfabrik Faber & Schleicher Ag | Laminated gear |
| CN1412456A (en) * | 2002-11-20 | 2003-04-23 | 赵永彬 | Gear and its production method |
| CN101285520A (en) * | 2008-05-30 | 2008-10-15 | 重庆大学 | Tooth thickness variable cylinder profile modified gear and gearing device using same |
| CN201502683U (en) * | 2009-08-21 | 2010-06-09 | 陈翊柜 | Combined gear |
-
2015
- 2015-02-09 CN CN201510068188.8A patent/CN104633048B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB256254A (en) * | 1925-07-29 | 1927-06-30 | Alfred Thomas Harman | Improved toothed gear wheel |
| GB326048A (en) * | 1929-04-02 | 1930-03-06 | Arthur Keighley | Improvements in and relating to laminated staggered tooth gears |
| US2228828A (en) * | 1938-12-29 | 1941-01-14 | Katakura Seishi Boseki Kabushi | Noiseless toothed wheel |
| US3988942A (en) * | 1975-04-28 | 1976-11-02 | Roland Offsetmaschinenfabrik Faber & Schleicher Ag | Laminated gear |
| CN1412456A (en) * | 2002-11-20 | 2003-04-23 | 赵永彬 | Gear and its production method |
| CN101285520A (en) * | 2008-05-30 | 2008-10-15 | 重庆大学 | Tooth thickness variable cylinder profile modified gear and gearing device using same |
| CN201502683U (en) * | 2009-08-21 | 2010-06-09 | 陈翊柜 | Combined gear |
Non-Patent Citations (1)
| Title |
|---|
| 变齿厚渐开线齿轮副啮合效率研究;蒋汉平等;《机械传动》;20110630;第35卷(第06期);正文第11页，图1 * |
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