CN203685995U - Integrated planet carrier structure - Google Patents
Integrated planet carrier structure Download PDFInfo
- Publication number
- CN203685995U CN203685995U CN201320691488.8U CN201320691488U CN203685995U CN 203685995 U CN203685995 U CN 203685995U CN 201320691488 U CN201320691488 U CN 201320691488U CN 203685995 U CN203685995 U CN 203685995U
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- Prior art keywords
- planet
- planet carrier
- integrated
- planet stent
- bearing pin
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- Expired - Lifetime
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- 238000012856 packing Methods 0.000 claims description 5
- 238000003801 milling Methods 0.000 description 4
- 238000010862 gear shaping Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 238000009826 distribution Methods 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
- 238000003754 machining Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
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Abstract
The utility model discloses an integrated planet carrier structure, wherein a traditional planet carrier, a sun wheel, a washer and planet pins are integrated to form an integrated planet carrier, the size tolerance of the center distance of the three planet pins of the planet carrier is within +/-0.015mm, the indexing tolerance is smaller than +/-2', and the coaxiality error corresponding to the central axial line is smaller than 0.015mm. The integrated planet carrier structure disclosed by the utility model has the advantages that a slipping situation generated between the sun wheel and the planet carrier is avoided by utilizing the integrated planet carrier structure, so that the stability and reliability are improved.
Description
Technical field
The utility model relates to a kind of plane table thermoconductivity meter technical field, particularly the integrated structure of a kind of planet stent.
Background technique
Planet stent is gear-driven critical component, is the component that bear moment of face maximum in plane table thermoconductivity meter.Traditional planet stent (as shown in Figure 1) comprises at least 8 parts, and it comprises the parts such as planet stent, sun gear, planet bearing pin and packing ring.Wherein planet bearing pin and sun gear are all to adopt interference fit to be pressed into respectively planet pin-and-hole and the interior formation of the center hole planet stent assembly in planet carrier.In plane table thermoconductivity meter, the load distribution uniformity between planetary pinion depends on the positional accuracy of planet bearing pin relatively and between rotating accuracy and the planet bearing pin of sun gear to a great extent.Current planet stent is adding man-hour, because part is more, the material of each part is different with hardness, press-fits fitting surface many, manufacture and press-fit in process and can produce larger cumulative error, stability is also poor, and the centre distance size deviation of three bearing pins is large, and the coaxiality error of central axis often reaches 0.03-0.05mm relatively, position angle error of graduation reaches 5 '-20 ', cause planetary pinion axis deflection, on teeth directional, cause load concentration, the bearing capacity of retarder is reduced.Produce noise, vibration, heating, so that retarder damages stall simultaneously.On the flank of tooth, there is severe pitting, burn, the faults such as break of gear tooth, bearing damage occur when serious.
Model utility content
Technical problem to be solved in the utility model is the integrated structure of planet stent that a kind of highi degree of accuracy, high reliability will be provided.
In order to solve above technical problem, the utility model provides a kind of planet stent integrated structure, traditional planet stent, sun gear, packing ring and planet bearing pin are integrated in to one, form the planet stent of integral type, 3 planet bearing pin centre distance dimensional tolerances of planet stent are in ± 0.015mm, calibration franchise is less than ± 2 ', be less than 0.015mm with respect to the coaxiality error of central axis.
The utility model replaces traditional interference fit and connects, and the skidding between sun gear and planet stent has been avoided in design and the processing of not only having saved pressing clamp simultaneously, thereby has higher stability and reliability.
In processing technology, the planet stent of integral type, after numerical control lathe wheeled litter becomes, adopts processing center machine tool boring and milling planet bearing pin.When boring and milling with endoporus or the cylindrical centering of planet stent one end of integral type, with the coaxality of machine tool chief axis in 0.005mm, starting point using machine tool chief axis at this moment as processing, carry out the processing of planet bearing pin and bearing locating face, then taking boring-mill work end face, size as benchmark, calibration sun gear cylindrical and end face run-out, in 0.005mm, carry out Gear Shaping, require gear circular runout to be less than 0.02mm.
Superior effect of the present utility model is:
1) by adopting the planet stent structure of integral type, avoid the skidding between sun gear and planet stent, improved stability and reliability;
2) by implementing above-mentioned processing method, 3 planet bearing pin centre distance dimensional tolerances of planet stent can ensure in ± 0.015mm, calibration franchise can ensure to be less than ± 2 ', being less than 0.015mm with respect to the coaxiality error of central axis, machining accuracy is greatly improved; Ensure 3 planet bearing pin centre distance size boring-mill work operation control ability index CPK value >=0.6 of planet stent simultaneously, improve the production process control ability of enterprise.
Brief description of the drawings
Fig. 1 is existing split type planet stent structural representation;
Fig. 2 is the planet stent structural representation of the utility model integral type;
Number in the figure explanation
1-sun gear; 2-planet stent;
3-packing ring; 4-planet bearing pin;
The planet stent of 5-integral type.
Embodiment
Refer to shown in accompanying drawing, the utility model will be further described.
As shown in Figure 2, the utility model provides a kind of planet stent integrated structure, traditional planet stent, sun gear, packing ring and planet bearing pin are integrated in to one, form the planet stent 5 of integral type, 3 planet bearing pin centre distance dimensional tolerances of planet stent are in ± 0.015mm, calibration franchise is less than ± 2 ', be less than 0.015mm with respect to the coaxiality error of central axis.The planet stent 5 of integral type is after numerical control lathe wheeled litter becomes, adopt processing center machine tool boring and milling planet bearing pin, when boring and milling with endoporus or the cylindrical centering of planet stent 5 one end of integral type, with the coaxality of machine tool chief axis in 0.005mm, starting point using machine tool chief axis at this moment as processing, carry out the processing of planet bearing pin and bearing locating face, then taking boring-mill work end face, size as benchmark, calibration sun gear cylindrical and end face run-out are in 0.005mm, carry out Gear Shaping, require gear circular runout to be less than 0.02mm.
Claims (1)
1. the integrated structure of planet stent, it is characterized in that: traditional planet stent, sun gear, packing ring and planet bearing pin are integrated in to one, form the planet stent of integral type, 3 planet bearing pin centre distance dimensional tolerances of planet stent are in ± 0.015mm, calibration franchise is less than ± 2 ', be less than 0.015mm with respect to the coaxiality error of central axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320691488.8U CN203685995U (en) | 2013-11-05 | 2013-11-05 | Integrated planet carrier structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320691488.8U CN203685995U (en) | 2013-11-05 | 2013-11-05 | Integrated planet carrier structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203685995U true CN203685995U (en) | 2014-07-02 |
Family
ID=51007902
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320691488.8U Expired - Lifetime CN203685995U (en) | 2013-11-05 | 2013-11-05 | Integrated planet carrier structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203685995U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109894828A (en) * | 2019-04-18 | 2019-06-18 | 重庆齿轮箱有限责任公司 | A kind of processing method of Pyatyi planet carrier component |
-
2013
- 2013-11-05 CN CN201320691488.8U patent/CN203685995U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109894828A (en) * | 2019-04-18 | 2019-06-18 | 重庆齿轮箱有限责任公司 | A kind of processing method of Pyatyi planet carrier component |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140702 |
|
| CX01 | Expiry of patent term |