CN103148195A - High-temperature-resistant gear - Google Patents
High-temperature-resistant gear Download PDFInfo
- Publication number
- CN103148195A CN103148195A CN2013100916992A CN201310091699A CN103148195A CN 103148195 A CN103148195 A CN 103148195A CN 2013100916992 A CN2013100916992 A CN 2013100916992A CN 201310091699 A CN201310091699 A CN 201310091699A CN 103148195 A CN103148195 A CN 103148195A
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- gear
- resistant
- driven gear
- elevated temperatures
- axis hole
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Abstract
The invention discloses a high-temperature-resistant gear, which comprises a gear main body, a bearing bush and a driven gear, wherein the gear main body and the driven gear are both made by powder metallurgy; the surface of the gear main body is provided with an axle hole; the surface of the driven gear is also provided with a axle hole; one end of the bearing bush is fixedly arranged on the axle hole of the gear main body, and the other end of the bearing bush is fixedly arranged on the axle hole of the driven gear; and the bearing bush is made of plastic. According to the high-temperature-resistant gear, direct contact of a metal gear and a metal shaft is avoided, the problem of generation of heat by friction is solved, and the service life is effectively prolonged.
Description
Technical field
The present invention relates to a kind of resistant to elevated temperatures gear.
Background technique
Having many uses of gear is the strength member in various machinery, all will use various gears as the wrist-watch used in lathe, aircraft, steamer and daily life, electric fan etc.The kind of gear is a lot, and spur gear wheel, cylindric spiral gear, spiral gear, straight toothed bevel gear, spiral bevel gear, worm gear etc. are arranged.Wherein use morely, also better simply is spur gear wheel, claims again standard cylinder gear.The parameters such as the formation of relevant Involute gear, modulus, pressure angle will be introduced in relevant course.Here the processing method of article spur gear wheel, the processing method of the form of gear tooth has two kinds.A kind of is forming method, utilizes exactly the method that cuts out profile of tooth with the profiling cutter that is conformed to fully by the gear cutting machine slot form, as mill teeth; Another kind is generating method, and it is to utilize the intermeshing motion of gear cutting tool and driven gear and the processing method that cuts out profile of tooth, as gear hobbing and gear shaping (demonstrating with hobboing cutter and slotting tool).The below introduces the method with the milling machine machining gears.Gear is the intermeshing mechanical parts that tooth is arranged of energy, and its application in mechanical transmission and whole mechanical field is extremely extensive.The Modern Gear technology reaches: O.004～100 millimeters of modules; Gear diameter is by 1 millimeter～150 meters; Transmitted power can reach 100,000 kilowatts; Turn scooter hundreds of thousands rev/min; The highest peripheral velocity reaches 300 meter per seconds.The application of gear in transmission occurred very early.In first three more than hundred years Christian era, the Ancient Greece Aristotle of man has just set forth the problem with bronze or cast iron gear transferring rotational motion in " mechanical problem ".Used a whole set of train in the vehicle pointing to the south of ancient Chinese invention.
By the double-layer gear that powder metallurgical gear and plastic gear combine, main by the insert injection moulding processes at present.Add man-hour, first process powder metallurgical gear, then powder metallurgical gear is pressed into as inserts in the mould of plastic gear, at last injection molding plastic gear again.This double-layer gear is when work, the endoporus of powder metallurgy directly contacts with metal shaft, and the larger frictional force that can produce between metal gear and metal shaft during work is in case the operating time is longer, friction generates heat just easily makes plastic gear produce distortion, and working life is shorter.
Summary of the invention
The object of the present invention is to provide a kind of resistant to elevated temperatures gear, avoided metal gear directly to contact with metal shaft, solved the problem of frictional heat, effectively extended working life.
Technological scheme of the present invention is: a kind of resistant to elevated temperatures gear, described resistant to elevated temperatures gear comprises gear body, bearing housing and driven gear, described gear body and described driven gear are all to be made by powder metallurgy, described gear body surface is provided with axis hole, and described driven gear surface also is provided with axis hole, and described bearing housing one end is fixed on the axis hole of described gear body, the other end is fixed on the axis hole of described driven gear, and described bearing housing is to be made of plastics.
In a preferred embodiment of the present invention, described powdered metal comprises copper, cobalt, nickel, iron and Tungsten carbite.
In a preferred embodiment of the present invention, described plastics comprise PVC＝polyvinyl chloride and phenolic aldehyde.
A kind of resistant to elevated temperatures gear of the present invention has avoided metal gear directly to contact with metal shaft, has solved the problem of frictional heat, has effectively extended working life.
Description of drawings
Accompanying drawing 1 is the perspective view of resistant to elevated temperatures gear one preferred embodiment of the present invention.
In accompanying drawing, the mark of each parts is as follows: 1, gear body, 2, driven gear, 3, bearing housing.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present invention is described in detail, thereby so that advantages and features of the invention can be easier to be it will be appreciated by those skilled in the art that, protection scope of the present invention is made more explicit defining.
See also Fig. 1, Fig. 1 is a kind of resistant to elevated temperatures gear of the present invention, described resistant to elevated temperatures gear comprises gear body 1, bearing housing 3 and driven gear 2, described gear body 1 and described driven gear 2 are all to be made by powder metallurgy, described gear body 1 surface is provided with axis hole, described driven gear 2 surfaces also are provided with axis hole, described bearing housing 3 one ends are fixed on the axis hole of described gear body 1, and the other end is fixed on the axis hole of described driven gear 2, and described bearing housing 3 is to be made of plastics.
Further illustrate, described powdered metal comprises copper, cobalt, nickel, iron and Tungsten carbite, and described plastics comprise PVC＝polyvinyl chloride and phenolic aldehyde, and described plastic shaft bearing sleeve is injection molded on the axis hole surface of metal gear by mould.By single forming and finishing process, do not need other aftertreatment technologys, can reach dimension precision requirement, especially profile accuracy fully.Therefore, and compare with traditional machining process manufacturing, all greatly reduce on material drops into and makes, it is the typical products that embodies the powder metallurgy characteristics.The invention provides a kind of resistant to elevated temperatures gear, avoided metal gear directly to contact with metal shaft, solved the problem of frictional heat, effectively extended working life.
The specific embodiment of the present invention; but protection scope of the present invention is not limited to this; any those of ordinary skill in the art are in the disclosed technical scope of the present invention, and variation or the replacement that can expect without creative work are within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain that claims were limited.
Claims (3)
1. resistant to elevated temperatures gear, it is characterized in that: described resistant to elevated temperatures gear comprises gear body, bearing housing and driven gear, described gear body and described driven gear are all to be made by powder metallurgy, described gear body surface is provided with axis hole, and described driven gear surface also is provided with axis hole, and described bearing housing one end is fixed on the axis hole of described gear body, the other end is fixed on the axis hole of described driven gear, and described bearing housing is to be made of plastics.
2. resistant to elevated temperatures gear according to claim 1, it is characterized in that: described powdered metal comprises copper, cobalt, nickel, iron and Tungsten carbite.
3. resistant to elevated temperatures gear according to claim 1, it is characterized in that: described plastics comprise PVC＝polyvinyl chloride and phenolic aldehyde.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100916992A CN103148195A (en) | 2013-03-21 | 2013-03-21 | High-temperature-resistant gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100916992A CN103148195A (en) | 2013-03-21 | 2013-03-21 | High-temperature-resistant gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103148195A true CN103148195A (en) | 2013-06-12 |
Family
ID=48546439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013100916992A Pending CN103148195A (en) | 2013-03-21 | 2013-03-21 | High-temperature-resistant gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103148195A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103542070A (en) * | 2013-11-04 | 2014-01-29 | 苏州优金金属成型科技有限公司 | Novel semi-gear |
| CN103542071A (en) * | 2013-11-04 | 2014-01-29 | 苏州优金金属成型科技有限公司 | Oscillating-tooth gear |
| CN106931638A (en) * | 2017-04-01 | 2017-07-07 | 烟台通天达风机制造有限公司 | Cumulative heat high-temperature warm air machine |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000110918A (en) * | 1998-10-01 | 2000-04-18 | Aichi Tokei Denki Co Ltd | Gear body for cogged wheel row of service water meter and gear unit for service water meter |
| US20100101350A1 (en) * | 2007-02-27 | 2010-04-29 | Achim Hawighorst | Two-component gear wheel |
| CN101841207A (en) * | 2010-05-07 | 2010-09-22 | 深圳市天禹传动技术有限公司 | Motor assembly as well as positioning installation method thereof |
| CN202510662U (en) * | 2012-04-01 | 2012-10-31 | 常州乐士雷利电机有限公司 | Double-deck gear |
| CN202510573U (en) * | 2012-04-01 | 2012-10-31 | 常州乐士雷利电机有限公司 | Metal gear |
| CN203272679U (en) * | 2013-03-21 | 2013-11-06 | 江苏保捷锻压有限公司 | High-temperature-resistant gear |
-
2013
- 2013-03-21 CN CN2013100916992A patent/CN103148195A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000110918A (en) * | 1998-10-01 | 2000-04-18 | Aichi Tokei Denki Co Ltd | Gear body for cogged wheel row of service water meter and gear unit for service water meter |
| US20100101350A1 (en) * | 2007-02-27 | 2010-04-29 | Achim Hawighorst | Two-component gear wheel |
| CN101841207A (en) * | 2010-05-07 | 2010-09-22 | 深圳市天禹传动技术有限公司 | Motor assembly as well as positioning installation method thereof |
| CN202510662U (en) * | 2012-04-01 | 2012-10-31 | 常州乐士雷利电机有限公司 | Double-deck gear |
| CN202510573U (en) * | 2012-04-01 | 2012-10-31 | 常州乐士雷利电机有限公司 | Metal gear |
| CN203272679U (en) * | 2013-03-21 | 2013-11-06 | 江苏保捷锻压有限公司 | High-temperature-resistant gear |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103542070A (en) * | 2013-11-04 | 2014-01-29 | 苏州优金金属成型科技有限公司 | Novel semi-gear |
| CN103542071A (en) * | 2013-11-04 | 2014-01-29 | 苏州优金金属成型科技有限公司 | Oscillating-tooth gear |
| CN106931638A (en) * | 2017-04-01 | 2017-07-07 | 烟台通天达风机制造有限公司 | Cumulative heat high-temperature warm air machine |
| CN106931638B (en) * | 2017-04-01 | 2023-03-10 | 烟台通天达风机制造有限公司 | Energy-gathered heat generation high-temperature air heater |
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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 |
Application publication date: 20130612 |