CN110296183A - A kind of bevel gear set - Google Patents
A kind of bevel gear set Download PDFInfo
- Publication number
- CN110296183A CN110296183A CN201910714313.6A CN201910714313A CN110296183A CN 110296183 A CN110296183 A CN 110296183A CN 201910714313 A CN201910714313 A CN 201910714313A CN 110296183 A CN110296183 A CN 110296183A
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- Prior art keywords
- gear
- gear wheel
- tooth
- facewidth
- wheel
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- 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
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- 238000000034 method Methods 0.000 claims description 15
- 239000000843 powder Substances 0.000 claims description 10
- 238000004663 powder metallurgy Methods 0.000 claims description 9
- 238000004512 die casting Methods 0.000 claims description 4
- 230000001737 promoting effect Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 238000003754 machining Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 230000005570 vertical transmission Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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
- F16H—GEARING
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/02—Toothed gearings for conveying rotary motion without gears having orbital motion
- F16H1/04—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members
- F16H1/12—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with non-parallel axes
- F16H1/14—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with non-parallel axes comprising conical gears only
-
- 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
- F16H55/06—Use of materials; Use of treatments of toothed members or worms to affect their intrinsic material properties
-
- 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
- F16H55/08—Profiling
-
- 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
- F16H55/06—Use of materials; Use of treatments of toothed members or worms to affect their intrinsic material properties
- F16H2055/065—Moulded gears, e.g. inserts therefor
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Thermal Sciences (AREA)
- Gears, Cams (AREA)
Abstract
The invention belongs to gear structure technical fields, refer in particular to a kind of bevel gear set, including intermeshing gear wheel and pinion gear, it is described big, pinion gear is curved tooth, one end of the gear wheel is provided with equally distributed detent projection, several detent projections form toothed surface, the other end of gear wheel is provided with the profiling flank of tooth compatible with the toothed surface, the profiling flank of tooth is also made of equally distributed detent projection, and, the detent projection of the profiling flank of tooth and the detent projection sequence of toothed surface, the facewidth of the pinion gear is greater than the facewidth of gear wheel, pinion gear is by being greater than the facewidth of gear wheel with the assembly of both larger range of cooperations, the present invention provides a kind of structure simple and stable bevel gear set.
Description
Technical field
The invention belongs to gear structure technical fields, refer in particular to a kind of bevel gear set.
Background technique
Gear is that one of the necessary components in machine driving, especially bevel gear, application and applicable situation are more wide
It is general.Bevel gear is used to transmit movement and the power between two concurrent aceses, the angle of cut etc. in common mechanical, between two axis of bevel gear
In 90 °.But there are following problems for present bevel gear production: the processing cost of a. bevel gear is higher, tradition milling and plane
Processing technology, the proportion of goods damageds of products material are higher, and finished surface has machining damage, need later period multiple tracks technique carry out
It repairs, processing is complicated, is also easy to produce waste product in process；B. in order to overcome the problems, such as material loss, using powder metallurgy
Processing method, but the intensity for boring tooth hardly results in guarantee, requirement is not up to standard, can not effectively be produced in batches.
Summary of the invention
The simple and stable bevel gear set the object of the present invention is to provide a kind of structure.
The object of the present invention is achieved like this:
A kind of bevel gear set, including intermeshing gear wheel and pinion gear, the large and small gear is curved tooth, described
One end of gear wheel is provided with equally distributed detent projection, and several detent projections form toothed surface, and the other end of gear wheel is set
It is equipped with the profiling flank of tooth compatible with the toothed surface, the profiling flank of tooth is also made of equally distributed detent projection, also, profiling
The detent projection of the flank of tooth and the detent projection sequence of toothed surface,
The facewidth of the pinion gear is greater than the facewidth of gear wheel, and pinion gear is by being greater than the facewidth of gear wheel with wider
Cooperation both assembly.
The gear wheel is formed using the technique die casting of powder metallurgy, for the tooth face hardness/intensity for promoting gear wheel, Yu great
Tooth-formation of gear face back is provided with the profiling flank of tooth, to promote the density of powder compacting.
The facewidth of the pinion gear is more than or equal to 1.5 times of wheel facewidth, also, the facewidth≤gear wheel of gear wheel
The radius of one third.
The tip distance of the pinion gear is N, and when large and small gear is meshed, the position with tip distance of pinion gear is naked
It exposes outside.
The tip distance of pinion gear is less than or equal to the 1/3 of the facewidth.
The intersection of the two axial lines of the gear wheel and pinion gear, and the angle of cut between gear wheel and two axis of pinion gear is
90°。
The gear wheel is inwardly recessed to form a concave portion in the middle part of toothed surface one end, and recessed portion is at least arranged two
Blind hole/through-hole is provided with through-hole in the middle part of the gear wheel and pinion gear.
For the gear wheel on the basis of middle through-hole, the circle bounce of the recessed portion is 0.08.
The outside circle of the gear wheel and the mismachining tolerance of root circle are between -0.2~0.1.
The tip angle of the gear wheel is c, and 70 °≤a≤77 °, the root angle of gear wheel is d, root angle and tip angle it
Between difference less than 10 °.
The present invention is prominent and beneficial compared with prior art to be had the technical effect that
1, gear wheel of the invention uses the technique die casting of powder metallurgy, realizes the efficient utilization of raw material；In order to from basic
The toothed surface strength problem for solving gear wheel, is provided with the profiling flank of tooth, and the tooth of the profiling flank of tooth in the opposite side of toothed surface
The detent projection sequence of shape protrusion and toothed surface, such structure can guarantee the practical thickness between toothed surface and the profiling flank of tooth
Degree is ensured that during powder metallurgy, the suppressible density of the powder of toothed surface position is higher, to directly be promoted
The working strength and hardness of toothed surface.The basic reason that the profiling flank of tooth is arranged is: during powder metallurgy, avoiding tooth form
Uneven thickness between face and the profiling flank of tooth guarantees the powder density of toothed surface position, ensures the working strength and hardness of toothed surface.
2, the facewidth of the pinion gear of the invention is greater than the facewidth of gear wheel, and pinion gear passes through the facewidth greater than gear wheel
With it is larger range of cooperation both assembly, when between large and small gear close to or far from during, as long as the flank of tooth of the two is also
It is to be meshed, so that it may which mutually transmission expands the use scope of the two, also, the facewidth of the pinion gear by the different facewidth
More than or equal to 1.5 times of wheel facewidth, set of gears group is used on various devices, and the structure can make up
Between use process gear set the problem of abrasion/loosening.
3, the tip distance of the pinion gear of the invention is N, and when large and small gear is meshed, pinion gear has crown
Away from position it is exposed outside, tip distance is the benchmark of pinion gear manufacture, and preferably guarantees nibbling after tooth processed by tip distance
Sideshake is closed, guarantees Product Precision, also, the tip distance of pinion gear is less than or equal to the 1/3 of the facewidth, to guarantee large and small gear engagement
Actual installation positional stability afterwards.
4, gear wheel of the present invention is inwardly recessed to form a concave portion in the middle part of toothed surface one end, and recessed portion can both be removed and be answered
The problems in power collection, and raw material are saved, and two blind hole/through-holes, preferably three blind holes are at least arranged in recessed portion, it is blind
Hole is in actual use, carrying out gear wheel described in emergency stop, guaranteeing the stability of structure.
5, it is provided with through-hole in the middle part of the large and small gear of the invention, which is used for external ROTATING SOURCE, therefore in through-hole
Keyway can be added according to the requirement of actual use, and through-hole is the machining benchmark of large and small gear, the end face conduct of recessed portion
Auxiliary positioning, therefore the Circular Run-out Tolerance of recessed portion is 0.08, passes through the manufacture stability of many places position assurance gear wheel.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 is gear wheel schematic diagram of internal structure of the invention
Fig. 3 is one of gear wheel structural schematic diagram of the invention；
Fig. 4 is gear wheel second structural representation of the invention；
Fig. 5 is gear wheel third structural representation of the invention；
Fig. 6 is the four of gear wheel structural schematic diagram of the invention.
In figure: 1- pinion gear；10- pinion gear through-hole；2- gear wheel；21- recessed portion；22- blind hole；23- toothed surface dentation
Protrusion；24- profiling flank of tooth detent projection；25- gear wheel through-hole；A- toothed surface；The b- profiling flank of tooth.
Specific embodiment
With specific embodiment, the invention will be further described with reference to the accompanying drawing, as shown in Fig. 1-6:
A kind of bevel gear set, including intermeshing gear wheel 2 and pinion gear 1, the large and small gear 2,1 is curved tooth,
As spiral bevel gear, spiral bevel gear have the advantages that strong registration height, bearing capacity, stable drive, noise are small, but in order to
The methods of realize that above-mentioned advantage, the intensity of the flank of tooth will be enhanced, can hereafter refer to profiling flank of tooth b and promote the accuracy of gear
Carry out promotion product strength.One end of the gear wheel 2 is provided with equally distributed toothed surface detent projection 23, several toothed surfaces
Detent projection 23 forms toothed surface a, and the other end of gear wheel 2 is provided with profiling flank of tooth b compatible with the toothed surface a, imitates
Shape flank of tooth b is also made of equally distributed profiling flank of tooth detent projection 24, also, the detent projection of the profiling flank of tooth and toothed surface
Detent projection structure substantially identical only the two sequence, such structure can guarantee between toothed surface a and profiling flank of tooth b
Actual (real) thickness is ensured, during powder metallurgy, the suppressible density of powder of the position toothed surface a is higher, thus
Directly promote the working strength and hardness of toothed surface a.The basic reason that profiling flank of tooth b is arranged is: in the process of powder metallurgy
In, uneven thickness between toothed surface a and profiling flank of tooth b is avoided, guarantees the powder density of the position toothed surface a, ensures toothed surface a's
Working strength and hardness.
The facewidth of the pinion gear 1 is greater than the facewidth of gear wheel 2, and pinion gear 1 is by being greater than the facewidth of gear wheel 2 with bigger
Range cooperation both assembly, when between large and small gear 1,2 close to or far from during, as long as the flank of tooth of the two is still
It is meshed, so that it may which mutually transmission expands the use scope of the two, also, the facewidth of the pinion gear 1 by the different facewidth
More than or equal to 1.5 times of 2 facewidth of gear wheel, set of gears group is used on various devices, and the structure can be more
The problem of mending abrasion/loosening between use process gear set.
The gear wheel 2 is formed using the technique die casting of powder metallurgy, for the tooth face hardness/intensity for promoting gear wheel 2, in
The back toothed surface a of gear wheel 2 is provided with profiling flank of tooth b, to promote the density of powder compacting.Large and small gear in the application
1,2 is manufactured by following process: 1, powder produce and mixing, metal powder and various auxiliary materials are pressed into certain ratio
After example prepares, mixed well by batch mixer；2, powder is suppressed, and mixture is fitted into compacting tool set, is pressurizeed on press machine
Molding；3, it is sintered, sintering temperature is lower than the fusing point of wherein metal and alloy, and is higher than the fusing point of low-melting constituent in auxiliary material；
4, subsequent processing, the processes such as shaping, immersion oil, heat treatment.The pinion gear 1 is the mate gear of gear wheel 2, it is required that not big
The requirement of gear 2 is high, therefore pinion gear 1 is using traditional mechanical processing technique manufacture.Pinion gear 1 passes through optimization plus parameter adaptation
At specific important parameter is as detailed below.
The facewidth of the pinion gear 1 is more than or equal to 1.5 times of 2 facewidth of gear wheel, set of gears group is used in more
In kind of equipment, and the problem of the structure can make up abrasion/loosening between use process gear set, also, the tooth of gear wheel 2
The radius of the one third of wide≤gear wheel 2, to guarantee the stability of gear wheel 2 itself.
The tip distance of the pinion gear 1 is N, when large and small gear 1,2 is meshed, the portion with tip distance of pinion gear 1
Position is exposed outside, and tip distance is the benchmark that pinion gear 1 manufactures, and preferably guarantees the engagement side after tooth processed by tip distance
Gap guarantees Product Precision, also, the tip distance of pinion gear 1 is less than or equal to the 1/3 of the facewidth, to guarantee that large and small gear 2,1 engages
Actual installation positional stability afterwards.
The intersection of the two axial lines of the gear wheel 2 and pinion gear 1, and the angle of cut between gear wheel 2 and two axis of pinion gear 1
It is 90 °, carries out vertical-transmission.
The gear wheel 2 is inwardly recessed to form a concave portion 21 in the middle part of the one end toothed surface a, and recessed portion 21 can both remove
The problems in stress collection, and save raw material, and recessed portion 21 is at least arranged two 22/ through-holes of blind hole, preferably three
Blind hole 22, blind hole 22 is in actual use, carrying out gear wheel 2 described in emergency stop, guaranteeing the stability of structure.
The middle part of the gear wheel 2 and pinion gear 1 is provided with through-hole, gear wheel through-hole 25 as shown in the figure and pinion gear
Through-hole 10, gear wheel through-hole 25 and pinion gear through-hole 10 are used for external ROTATING SOURCE, therefore gear wheel through-hole 25 and pinion gear through-hole
Keyway can be added in 10 according to the requirement of actual use, and gear wheel through-hole 25 and pinion gear through-hole 10 are large and small gear
2,1 machining benchmark, the end face of the recessed portion 21 of gear wheel 2 is as auxiliary positioning, therefore the Circular Run-out Tolerance of recessed portion 21 is
0.08, pass through the manufacture stability of many places position assurance gear wheel 2.
The outside circle of the gear wheel 2 and the mismachining tolerance of root circle are between -0.2~0.1.The top of the gear wheel 2
Cone angle is c, and 70 °≤a≤77 °, the root angle of gear wheel 2 is d, and the difference between root angle and tip angle is less than 10 °.Pass through essence
Degree control can just produce conjunction rule, close target gear, the life of product being assembled to form could be allowed longer and stability is stronger.
Above-described embodiment is only presently preferred embodiments of the present invention, is not limited the scope of the invention according to this, therefore: it is all according to
The equivalence changes that structure of the invention, shape, principle are done, should all be covered by within protection scope of the present invention.
Claims (10)
1. a kind of bevel gear set, including intermeshing gear wheel (2) and pinion gear (1), it is characterised in that: the large and small tooth
Taking turns (2,1) is curved tooth, and one end of the gear wheel (2) is provided with equally distributed detent projection, and several detent projections are formed
Toothed surface (a), the other end of gear wheel (2) are provided with the compatible profiling flank of tooth (b) with the toothed surface (a), the profiling flank of tooth
(b) it is also made of equally distributed detent projection, also, the detent projection of the detent projection of the profiling flank of tooth (b) and toothed surface (a)
Sequence,
The facewidth of the pinion gear (1) be greater than gear wheel (2) the facewidth, pinion gear (1) by be greater than gear wheel (2) the facewidth with
The assembly of both larger range of cooperations.
2. bevel gear set according to claim 1, it is characterised in that: the technique that the gear wheel (2) uses powder metallurgy
Die casting forms, and for the tooth face hardness/intensity for promoting gear wheel (2), toothed surface (a) back of gear wheel (2) is provided with profiling
The flank of tooth (b), to promote the density of powder compacting.
3. bevel gear set according to claim 1 or 2, it is characterised in that: the facewidth of the pinion gear (1) is more than or equal to big
1.5 times of gear (2) facewidth, also, the radius of the one third of the facewidth≤gear wheel (2) of gear wheel (2).
4. bevel gear set according to claim 1 or 2, it is characterised in that: the tip distance of the pinion gear (1) is N, when
When large and small gear (1,2) is meshed, the position with tip distance of pinion gear (1) is exposed outside.
5. bevel gear set according to claim 4, it is characterised in that: the tip distance of shown pinion gear (1) is less than or equal to tooth
Wide 1/3.
6. bevel gear set according to claim 1, it is characterised in that: the two axial lines of the gear wheel (2) and pinion gear (1)
Intersection, and the angle of cut between gear wheel (2) and two axis of pinion gear (1) is 90 °.
7. bevel gear set according to claim 1, it is characterised in that: the gear wheel (2) is in toothed surface (a) one end
Portion is inwardly recessed to form a concave portion (21), and two blind hole (22)/through-holes, the gear wheel is at least arranged in recessed portion (21)
(2) and in the middle part of pinion gear (1) it is provided with through-hole.
8. bevel gear set according to claim 7, it is characterised in that: the gear wheel (2) is on the basis of middle through-hole, institute
The circle bounce for stating recessed portion (21) is 0.08.
9. bevel gear set according to claim 1, it is characterised in that: the outside circle of the gear wheel (2) and root circle
Mismachining tolerance is between -0.2~0.1.
10. bevel gear set according to claim 1, it is characterised in that: the tip angle of the gear wheel (2) be c, 70 °≤a
≤ 77 °, the root angle of gear wheel (2) is d, and the difference between root angle and tip angle is less than 10 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910714313.6A CN110296183A (en) | 2019-08-03 | 2019-08-03 | A kind of bevel gear set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910714313.6A CN110296183A (en) | 2019-08-03 | 2019-08-03 | A kind of bevel gear set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110296183A true CN110296183A (en) | 2019-10-01 |
Family
ID=68032596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910714313.6A Pending CN110296183A (en) | 2019-08-03 | 2019-08-03 | A kind of bevel gear set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110296183A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113510450A (en) * | 2021-07-29 | 2021-10-19 | 金华市宇辰粉末冶金有限公司 | Method for manufacturing bevel gear set and bevel gear set thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002005266A (en) * | 2000-06-22 | 2002-01-09 | Hitachi Powdered Metals Co Ltd | Sintered gear and its production method |
| CN101982673A (en) * | 2010-11-04 | 2011-03-02 | 吉林大学 | Design method of hypoid gear pair |
| CN207569163U (en) * | 2017-02-10 | 2018-07-03 | 江苏亿鑫齿轮制造有限公司 | A kind of bevel gear |
| CN109163069A (en) * | 2018-10-31 | 2019-01-08 | 金华市宇辰粉末冶金有限公司 | A kind of new gear |
| CN109382638A (en) * | 2018-12-26 | 2019-02-26 | 重庆市星极齿轮有限责任公司 | A kind of processing technology improving the accuracy of gear |
| CN210830326U (en) * | 2019-08-03 | 2020-06-23 | 金华市宇辰粉末冶金有限公司 | Bevel gear set |
-
2019
- 2019-08-03 CN CN201910714313.6A patent/CN110296183A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002005266A (en) * | 2000-06-22 | 2002-01-09 | Hitachi Powdered Metals Co Ltd | Sintered gear and its production method |
| CN101982673A (en) * | 2010-11-04 | 2011-03-02 | 吉林大学 | Design method of hypoid gear pair |
| CN207569163U (en) * | 2017-02-10 | 2018-07-03 | 江苏亿鑫齿轮制造有限公司 | A kind of bevel gear |
| CN109163069A (en) * | 2018-10-31 | 2019-01-08 | 金华市宇辰粉末冶金有限公司 | A kind of new gear |
| CN109382638A (en) * | 2018-12-26 | 2019-02-26 | 重庆市星极齿轮有限责任公司 | A kind of processing technology improving the accuracy of gear |
| CN210830326U (en) * | 2019-08-03 | 2020-06-23 | 金华市宇辰粉末冶金有限公司 | Bevel gear set |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113510450A (en) * | 2021-07-29 | 2021-10-19 | 金华市宇辰粉末冶金有限公司 | Method for manufacturing bevel gear set and bevel gear set thereof |
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