CN114483916A - Crowned tooth used in planetary reducer - Google Patents
Crowned tooth used in planetary reducer Download PDFInfo
- Publication number
- CN114483916A CN114483916A CN202210032375.0A CN202210032375A CN114483916A CN 114483916 A CN114483916 A CN 114483916A CN 202210032375 A CN202210032375 A CN 202210032375A CN 114483916 A CN114483916 A CN 114483916A
- Authority
- CN
- China
- Prior art keywords
- gear
- tooth
- crowned
- outer edge
- edge part
- 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
- 239000003638 chemical reducing agent Substances 0.000 title claims abstract description 9
- 238000000034 method Methods 0.000 claims description 5
- 238000005496 tempering Methods 0.000 claims description 5
- 238000005255 carburizing Methods 0.000 claims description 3
- 238000003754 machining Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 description 5
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- 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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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/80—After-treatment
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- Retarders (AREA)
Abstract
The invention discloses a crowned tooth used in a planetary reducer, which mainly comprises: the gear comprises a gear body, wherein crowned teeth are arranged on the outer edge part of the gear body, and are circumferentially distributed on the outer edge part; the tooth direction of the crowned teeth is double-sided crowning. The invention cuts the tooth top tooth profile of the gear main body into a shape which is slightly convex compared with the correct involute curve, and simultaneously, the tooth top tooth profile is made into a drum-shaped tooth, when the tooth surface of the gear is deformed by external force, the gear meshed with the tooth top tooth profile can be prevented from being interfered, the noise can be reduced, and the service life of the gear can be prolonged.
Description
Technical Field
The invention relates to the technical field of gears, in particular to a crowned tooth used in a planetary reducer.
Background
Planetary gears are widely used in various machines. The planetary gear transmission has the main characteristics of small volume, high bearing capacity and stable work. However, the high-power high-speed planetary gear transmission structure is complex and requires high manufacturing precision.
Some types of planetary gear transmissions are efficient, but the transmission ratio is not large. Other types may have large ratios but are inefficient. When they are used as reducers, their efficiency decreases with increasing transmission ratio; when used as a speed increaser, self-locking can be generated. The tooth direction section of the gear teeth of the existing planetary gear is generally linear, but the noise generated when the planetary gear is meshed for working is large, and the service life is short.
Therefore, how to provide a crowned tooth with low noise and long service life is a problem that needs to be solved by those skilled in the art.
Disclosure of Invention
In view of the above, the invention provides a crowned tooth for a planetary reducer, which has low noise and long service life.
In order to achieve the above object, the present invention provides the following technical solutions, which mainly include: the gear comprises a gear body, wherein crowned teeth are arranged on the outer edge part of the gear body, and are circumferentially distributed on the outer edge part; the tooth direction of the crowned teeth is double-sided crowning.
Preferably, in the above crown gear for use in a planetary reduction gear, the manufacturing process is as follows:
s1, performing tooth blank processing on the tempered material;
s2: performing semi-finish machining and rough gear hobbing on the gear blank;
s3: carburizing the semi-finished gear;
s4: tempering the carburized gear piece at 600-700 ℃ for 10 h;
s5: and carrying out fine hobbing treatment on the semi-fine gear piece after the tempering treatment to process the crowned teeth.
According to the technical scheme, compared with the prior art, the crown gear used in the planetary reducer is provided, the tooth top tooth profile of the gear body is cut into a shape which is slightly convex compared with a correct involute curve, and the crown gear is manufactured at the same time, so that when the tooth surface of the gear is deformed by external force, the gear meshed with the tooth surface of the gear can be prevented from being interfered, noise can be reduced, and the service life of the gear can be prolonged.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic diagram of the present invention.
Figure 2 is a schematic view of the tooth orientation of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, a crowned tooth for use in a planetary reduction gear is disclosed.
The invention mainly comprises the following steps: the gear comprises a gear body 1, wherein the outer edge part of the gear body 1 is provided with crowned teeth 2, and the crowned teeth 2 are circumferentially distributed on the outer edge part; the tooth direction of the crowned teeth 2 is double-sided crowning.
In order to further optimize the technical scheme, the preparation process comprises the following steps:
s1, performing tooth blank processing on the tempered material;
s2: performing semi-finishing (rough hobbing) on the gear blank, and reserving machining allowance according to the gear module as follows:
s3: carburizing the semi-finished gear;
s4: tempering the carburized gear piece at 600-700 ℃ for 10 h;
s5: and (3) carrying out finish hobbing treatment on the tempered semi-finished gear piece to process a crowned tooth, wherein the crowned amount of one side of the processed crowned tooth is as follows:
in order to further optimize the technical scheme, the tooth top tooth profile of the gear body 1 is cut to be slightly convex compared with a correct involute curve, when the tooth surface of the gear is deformed by external force, the gear meshed with the tooth top tooth profile can be prevented from being interfered, noise can be reduced, and the service life of the gear can be prolonged.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (2)
1. A crowned tooth for use in a planetary gear reducer, comprising: the gear comprises a gear body, wherein crowned teeth are arranged on the outer edge part of the gear body, and are circumferentially distributed on the outer edge part; the tooth direction of the crowned teeth is double-sided crowning.
2. A crowned tooth for use in a planetary reducer according to claim 1, wherein the manufacturing process is as follows:
s1, performing tooth blank processing on the tempered material;
s2: performing semi-finish machining and rough gear hobbing on the gear blank;
s3: carburizing the semi-finished gear;
s4: tempering the carburized gear piece at 600-700 ℃ for 10 h;
s5: and carrying out fine hobbing treatment on the semi-fine gear piece after the tempering treatment to process the crowned teeth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210032375.0A CN114483916A (en) | 2022-01-12 | 2022-01-12 | Crowned tooth used in planetary reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210032375.0A CN114483916A (en) | 2022-01-12 | 2022-01-12 | Crowned tooth used in planetary reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114483916A true CN114483916A (en) | 2022-05-13 |
Family
ID=81512790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210032375.0A Pending CN114483916A (en) | 2022-01-12 | 2022-01-12 | Crowned tooth used in planetary reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114483916A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61195725A (en) * | 1985-02-27 | 1986-08-30 | Sumitomo Metal Ind Ltd | Manufacture of high strength spur gear |
| CN203035884U (en) * | 2012-09-25 | 2013-07-03 | 常州市大林齿轮有限公司 | Crowned tooth planetary gear |
| CN106031972A (en) * | 2015-03-20 | 2016-10-19 | 苏州锻压厂有限责任公司 | Aerogenerator gear manufacturing method |
| CN107253024A (en) * | 2017-06-14 | 2017-10-17 | 康为同创集团有限公司 | Barreled tooth flank processing technology |
-
2022
- 2022-01-12 CN CN202210032375.0A patent/CN114483916A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61195725A (en) * | 1985-02-27 | 1986-08-30 | Sumitomo Metal Ind Ltd | Manufacture of high strength spur gear |
| CN203035884U (en) * | 2012-09-25 | 2013-07-03 | 常州市大林齿轮有限公司 | Crowned tooth planetary gear |
| CN106031972A (en) * | 2015-03-20 | 2016-10-19 | 苏州锻压厂有限责任公司 | Aerogenerator gear manufacturing method |
| CN107253024A (en) * | 2017-06-14 | 2017-10-17 | 康为同创集团有限公司 | Barreled tooth flank processing technology |
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