CN101725692A - Compound gear - Google Patents
Compound gear Download PDFInfo
- Publication number
- CN101725692A CN101725692A CN200810155650A CN200810155650A CN101725692A CN 101725692 A CN101725692 A CN 101725692A CN 200810155650 A CN200810155650 A CN 200810155650A CN 200810155650 A CN200810155650 A CN 200810155650A CN 101725692 A CN101725692 A CN 101725692A
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- CN
- China
- Prior art keywords
- gear
- spiral bevel
- tooth
- bevel gear
- involute
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The invention discloses a compound gear, which is formed by a spiral bevel gear and a combined involute gear. The combined involute gear is arranged in the inner cavity of the spiral bevel gear, is coaxial with the spiral bevel gear, and starts from the left end surface of the spiral bevel gear and ends up in the inner end surface thereof. The invention uses a built-in combined involute gear structure; the combined gear has more teeth and dispersed load, and is manufactured without considering turning directions, thus reducing paired stock removal and being favor of lowering production cost.The combined involute gear end is provided with a double chamfer, thus facilitating gear shift, reducing impact force of gear shift and lowering noise.The invention is especially used as a gear for controlling the output direction in a reverse mechanism of a vehicle.
Description
Technical field
The present invention relates to a kind of gear, establish the spiral bevel gear of involute in particularly a kind of in conjunction with tooth.
Background technique
Motor devices such as motor boat, motor tricycle, gearbox peculiar to vessel and engineering driller all are provided with reverse gear mechanism, traditional reverse gear mechanism is by jaw clutch, control left tooth embedding output spiral bevel gear and right tooth embedding output spiral bevel gear respectively, realize the output shaft clockwise and anticlockwise with the engagement of input spiral bevel gear.Two kinds of output spiral bevel gears of above-mentioned different rotation directions all are to combine the built up gear that tooth links into an integrated entity by spiral bevel gear with castellated.Spiral bevel gear in this built up gear is identical, only is castellatedly to revolve difference about having in conjunction with tooth.The castellated output gear with curved teeth of prior art can satisfy the reverse gear usage requirement, but has following two deficiencies.The one, the spiral bevel gear accuracy of mesh requires high, will match grindings before installing, and a pair of pairing is ground easily, and two pairs are ground with facing-up that all to reach requirement difficult.The 2nd, on a gear, be provided with and castellatedly be no more than 6 teeth usually in conjunction with tooth, harder during gear shift, easily produce impact noise, frequent bump can be accelerated castellated in conjunction with odontotripsis.If what be meshed is castellated in conjunction with the tooth positional accuracy when not high, the castellated of actual engagement may have only one or two in conjunction with tooth, easily causes tooth inserted tooth overburdening and damages.
Summary of the invention
The present invention is primarily aimed at prior art because of the castellated branch that rotation direction is arranged in conjunction with tooth, and the tooth inserted tooth number of teeth of evagination is few, deficiencies such as flank of tooth load is inhomogeneous, gear shift is hard, impact noise is big, fragile, a kind of integrated duplex is proposed, the employing profile of tooth is that the straight-tooth of involute is done in conjunction with tooth, each tooth is evenly born load, gear shift is easy, noise is low, and is regardless of the compound gear of rotation direction.
The present invention is achieved through the following technical solutions technical goal.
Compound gear is made of jointly spiral bevel gear and involute combination gear, improvements are: described involute combination gear is located in the spiral bevel gear inner chamber and is coaxial, involute plays the spiral bevel gear left side eventually to interior edge face in conjunction with a tooth left side, and its diameter is less than spiral bevel gear small end root circle.
The tooth of involute combination gear and parallel axes in the compound gear, tooth left end bilateral symmetry are provided with 60 °～120 ° chamferings, are convenient to gear shift.
The present invention compared with prior art has following good effect:
1, the involute combination gear is built in the spiral bevel gear, compact structure;
2, involute is more than the castellated number of teeth in conjunction with tooth in conjunction with tooth, and each flank of tooth evenly bears load, and unit tooth load is little, long service life;
3, the involute combination gear be straight-tooth and and parallel axes, tooth left end symmetry chamfering, clash into little, shift gears easy, laborsaving;
4, the tooth both sides of involute combination gear all can be located, and need not divide left and right sides rotation direction to make, and reduce manufacture cost;
5, two identical compound gears using in the reverse gear mechanism grind easily accuracy of mesh height with the pairing of input spiral bevel gear.
Description of drawings
Fig. 1 is a compound gear structural profile schematic representation of the present invention.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is the schematic representation that involute combination gear 2 left ends are provided with symmetrical chamfering among Fig. 1.
Embodiment
The invention will be further described with reference to the accompanying drawings below.
Compound gear shown in the accompanying drawing 1, it is made of jointly spiral bevel gear 1 and involute combination gear 2.Involute combination gear 2 is located in the spiral bevel gear inner chamber and is coaxial, and involute is a straight-tooth shape in conjunction with tooth, the flank of tooth and parallel axes, and the tooth right-hand member engages with spiral bevel gear 1 interior edge face, and the tooth left end is provided with symmetrical chamfering as shown in Figure 3, and the present embodiment chamfering is 70 °.Involute combination gear 2 indents are in spiral bevel gear 1 middle part, and its diameter is less than spiral bevel gear 1 small end root circle.This enforcement is the compound gear that is applied in the car reverse gear mechanism, spiral bevel gear still keeps the original structure parameter in this gear, only inner chamber is provided with the involute straight-tooth of 17 teeth in conjunction with tooth, the compound gear branch is listed in input spiral bevel gear both sides, mesh with the input spiral bevel gear respectively by the Clutch Control compound gear, realize the output shaft clockwise and anticlockwise.The involute combination gear that is built in the spiral bevel gear has 17 teeth, compact structure, each flank of tooth uniform load, long service life.The most important thing is to be regardless of left and right sides rotation direction, and be straight-tooth, the flank of tooth and parallel axes, the tooth outer end is provided with chamfering, so the gear shift bump is little, gear shift is easy, laborsaving.Be regardless of left and right sides rotation direction among the present invention, thus the pairing amount of grinding only half, easily realize high-precision engaging.
Claims (2)
1. compound gear, it is by spiral bevel gear (1) and the common formation of involute combination gear (2), it is characterized in that: described involute combination gear (2) is located in spiral bevel gear (1) inner chamber and is coaxial, involute plays spiral bevel gear (1) left side eventually to interior edge face in conjunction with a tooth left side, and its diameter is less than spiral bevel gear (1) small end root circle.
2. compound gear according to claim 1 is characterized in that: the tooth and the parallel axes of described involute combination gear (2), tooth left end bilateral symmetry are provided with 60 ° of 120 ° of chamferings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810155650A CN101725692A (en) | 2008-10-10 | 2008-10-10 | Compound gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810155650A CN101725692A (en) | 2008-10-10 | 2008-10-10 | Compound gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101725692A true CN101725692A (en) | 2010-06-09 |
Family
ID=42447060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810155650A Pending CN101725692A (en) | 2008-10-10 | 2008-10-10 | Compound gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101725692A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012048599A1 (en) * | 2010-10-15 | 2012-04-19 | 重庆大学 | Bevel gear with involute cambered surface tooth profile and meshing pair thereof |
| CN103231902A (en) * | 2013-05-08 | 2013-08-07 | 重庆大学 | Power receiving mechanism arranged on fixed conveyor |
| CN109185427A (en) * | 2018-11-20 | 2019-01-11 | 李民涛 | Dumbbell type gear guide wheel |
-
2008
- 2008-10-10 CN CN200810155650A patent/CN101725692A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012048599A1 (en) * | 2010-10-15 | 2012-04-19 | 重庆大学 | Bevel gear with involute cambered surface tooth profile and meshing pair thereof |
| CN103231902A (en) * | 2013-05-08 | 2013-08-07 | 重庆大学 | Power receiving mechanism arranged on fixed conveyor |
| CN109185427A (en) * | 2018-11-20 | 2019-01-11 | 李民涛 | Dumbbell type gear guide wheel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100609 |