CN203756949U - Planet wheel axle riveting structure - Google Patents
Planet wheel axle riveting structure Download PDFInfo
- Publication number
- CN203756949U CN203756949U CN201420062103.6U CN201420062103U CN203756949U CN 203756949 U CN203756949 U CN 203756949U CN 201420062103 U CN201420062103 U CN 201420062103U CN 203756949 U CN203756949 U CN 203756949U
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- China
- Prior art keywords
- planet wheel
- wheel shaft
- plane
- annular groove
- protruding structure
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Abstract
The utility model discloses a planet wheel axle riveting structure. The planet wheel axle riveting structure is characterized in that an annular groove is formed in the end surface of the end, which is exposed out of a planet wheel carrier, of a planet wheel axle, and the outer edge of the annular groove is of a protruded structure. The planet wheel axle riveting structure has the advantages that the structure of the planet wheel axle is improved on the premise that the quality and the performance of a product are unaffected, and accordingly the component machining cost, the types of assembled components and the consumption cost of the integral product can be reduced.
Description
Technical field
The utility model relates to the fixing assembly structure between planet wheel shaft and planet carrier in planetary speed reducer, is specifically related to a kind of rivet pressing structure.
Background technique
Planetary driving device adopts several planetary pinions transmitted load simultaneously, make power dividing and reasonably used interior engagement, therefore this device has the advantages such as compact structure, volume is little, lightweight, gear range is large, and this transmission device is applied more extensive on the equipment such as metallurgy, mine, lifting transport, aviation, boats and ships, power.Planetary driving device mainly contains the part compositions such as sun gear, planet wheel, planet wheel shaft, planetary wheel carrier and inside engaged gear.According to actual user demand, the number of teeth and the modulus that change sun gear, planetary pinion and inside engaged gear just can obtain different velocity ratios.
As shown in Figure 1, the outer rim in cross-sectional direction is provided with groove 7 to the structure of traditional planet wheel shaft, when assembling, as shown in Figure 2, planet wheel shaft 3 is inserted after planetary wheel carrier 4, and expose from planetary wheel carrier 4 one end that is provided with groove 7, then in groove 7, puts a back-up ring 6.This kind of structure is to pass to sun gear 1 by extraneous moment of torsion, sun gear 1 drives planet wheel 2 transmissions, by needle bearing or lining, (material is copper to planet wheel 2, be equivalent to the effect of sliding bearing) be arranged on planet wheel shaft 3, between planet wheel shaft 3 and planetary wheel carrier 4, pass through back-up ring 6 fixing, thereby reach the transmission of moment of torsion.Owing to receiving the restriction in space, on planet wheel shaft 3, the wall thickness of back-up ring 6 end faces is less, in assembling and use, safety coefficient is lower, also exist the cumulative error of each part processing can form mutual interference simultaneously, as for improving safety coefficient, prevent that each part from interfering, need to strengthen wall thickness, expand global design structure.As because back-up ring 6 wall thickness are less, planet wheel shaft 3 damages and will cause planet wheel 2 plaies, and the phenomenon of beating tooth in the lower appearance that runs up, makes whole speed reducer break down and cannot normally work.
Summary of the invention
Problem to be solved in the utility model is because back-up ring wall thickness is less, the technical problem that easily makes planet wheel shaft damage.
In order to address the above problem, the utility model provides a kind of planet wheel shaft rivet pressing structure, it is characterized in that, the end face that planet wheel shaft exposes one end from planetary wheel carrier is provided with annular groove, and the outer rim of annular groove is protruding structure.
Preferably, described protruding structure root reduces gradually to the cross section of end face, and the inner side of protruding structure is the first inclined-plane.
Further, the width of described annular groove is 2mm; The total height of protruding structure is 4mm, is 1mm compared to the height of annular groove inner side, and the height on the first inclined-plane is 2mm; The thickness of protruding structure root is 1.5mm; The first inclined-plane is 15 ° compared to the tilt angle of vertical plane.
Further, the outside of described protruding structure is the second inclined-plane.
Further, the total height that the height on described the second inclined-plane is protruding structure, the second inclined-plane is 5 ° compared to the tilt angle of vertical plane.
Preferably, in described planetary wheel carrier for assembling between the inwall of mounting hole of planet wheel shaft and end face by the 3rd chamfered transition.
The THICKNESS CONTROL of deformation place, at 0.5～1mm, is then installed to planet wheel shaft in hole corresponding on planet carrier, under the control of oil hydraulic press, makes 15 ° of inclined-plane distortion by frock press mold, reach the object of riveting assembling.Now, planet wheel shaft end face and planetary wheel carrier endoporus riveting are tightr, and gapless finds that through riveting success rate reaches more than 98%.Use oil hydraulic press to act on planet wheel shaft, under the active force of 15MPa, planet wheel shaft just departs from planetary wheel carrier endoporus, carries out strenuous test in 200 hours discovery riveting position without the phenomenon such as getting loose, come off simultaneously.
The rivet pressing structure that the utility model provides, is not affect under the requirement of product quality and performances, has improved the structure of planet wheel shaft, reduces the processing cost of part, reduces the kind of Assembly part simultaneously, reduces the consuming cost of whole product.
Compared with prior art, the beneficial effects of the utility model are:
1, the utility model provides a kind of structural design of new planet wheel shaft, and being mainly increases by a circular groove at axle head, thereby reduces the cost of material of part, and part, without machining shaft circlip groove, has reduced the control of processing request.Circular groove processing request is lower, and the design comparison of riveting frock is simple, and the structure after riveting is more firm.
2, the utility model is simple in structure, in assembling, save the assembling of shaft block ring, reduce costs, spatial position is larger, can, because the processing cumulative error of part causes mutual Assembly Interference, by the improvement design to planet wheel shaft structure, not reduce processing, the elimination restriction of spatial structure and the assembling of correlated parts of planet wheel shaft, reduce the processing cost of product, improve efficiency of assembling.
Brief description of the drawings
Fig. 1 is the structural representation of traditional planet wheel shaft;
Fig. 2 is the structural representation of traditional planet wheel shaft general assembly;
The structural representation of the planet wheel shaft rivet pressing structure that Fig. 3 provides for embodiment 1;
Fig. 4 is the partial enlarged drawing of I part in Fig. 3;
The structural representation of the planet wheel shaft rivet pressing structure that Fig. 5 provides for embodiment 2;
Fig. 6 is the partial enlarged drawing of II part in Fig. 5;
Fig. 7 is the structural representation that adopts the planet wheel shaft assembly of the utility model assembling;
Fig. 8 is that the utility model carries out the schematic diagram that riveting adds man-hour;
Fig. 9 is the partial enlarged drawing of III part in Fig. 8.
Embodiment
For the utility model is become apparent, hereby with preferred embodiment, and coordinate accompanying drawing to be described in detail below.
Embodiment 1
As shown in Figure 3-4, the structural representation of a kind of planet wheel shaft rivet pressing structure providing for the utility model, planet wheel shaft 3 exposes the end face of one end and opens an annular groove 8 from planetary wheel carrier 4, and the outer rim of annular groove 8 is protruding structure 9.Described protruding structure 9 roots reduce gradually to the cross section of end face, and the inner side of protruding structure 9 is the first inclined-plane A.The width of annular groove 8 is 2mm; The total height h of protruding structure 9
3for 4mm, compared to the height h of annular groove 8 inner sides
1for 1mm, the height h of the first inclined-plane A
2for 2mm; The thickness d of protruding structure 9 roots is 1.5mm; The first inclined-plane A is 15 ° compared to the inclined angle alpha of vertical plane.
Embodiment 2
As shown in Fig. 5-6, the structural representation of the another kind of planet wheel shaft rivet pressing structure providing for the utility model, is with embodiment 1 difference: the outside of protruding structure 9 is the second inclined-plane B.The height of the second inclined-plane B is the total height h of protruding structure 9
3, i.e. 4mm; The second inclined-plane B is 5 ° compared to the angle of inclination beta of vertical plane.
Planet wheel shaft 3 is processed fairly simple, engine lathe can be processed, add the upper part that clamps planet wheel shaft 1 man-hour, cylindrical turning chamfering, first processes an annular groove 8 in planet wheel shaft 3 lower end surfaces, reprocessing the first inclined-plane A, for adding man-hour for the mounting hole that planet wheel shaft 3 is installed on planetary wheel carrier 4, only need be processed into the 3rd inclined-plane C at the end face angle of mounting hole and get final product (as shown in Figure 9), after part processes, burr be removed clean.
Deformation place THICKNESS CONTROL is at 0.5～1mm, as Figure 8-9, first planet wheel shaft 3 and planetary wheel carrier 4 are assembled, then by pressing mold 10 (pressure direction as shown by the arrows in Figure 8) under the active force of oil hydraulic press, make planet wheel shaft 3 riveting positions be in the effect of pressing mold 10, the outside turnup of protruding structure 9, fits tightly with the 3rd inclined-plane C, thereby reaches the effect of riveting.
After the planet wheel shaft general assembly that the planet wheel shaft rivet pressing structure that adopts the utility model to provide is made, as shown in Figure 7, reduce the design space of whole product structure, can not occur interference phenomenon because of the accumulation machining error of part.Traditional project organization processing request is high, under heat treated distortion, there will be cylindrical and circlip groove coaxality to have error, because there is gap between standard piece shaft block ring 9 and groove 7, planet wheel shaft 3 there will be the phenomenons such as axial float after installing, need buying and the installation of standard piece shaft block ring 9 simultaneously, and adopt rivet pressing structure can reduce the processing request of product, reduce fabricated material cost.
Specific operation are verified by testing and putting into practice:
On oil hydraulic press, directly press planet wheel shaft 3, until planet wheel shaft 3 comes off from planetary wheel carrier 4, now oil hydraulic press shows the pressure of 15MPa, in general assembly drawing as shown in Figure 7, can find out that this planet wheel shaft 3 is not subject in actual use axial force or has slight axial force, in using so actual, this kind of project organization is safer.
Simultaneously, in order to verify this reliability of structure, also the planet wheel shaft assembly shown in Fig. 7 has been carried out to strenuous test, after strenuous test in 200 hours, disassembled, riveting position is unchanged, without the phenomenon such as getting loose, come off.Now the mounting hole riveting in planet wheel shaft 3 end faces and planetary wheel carrier 4 is tightr, and gapless finds that through riveting success rate reaches more than 98%.
Claims (6)
1. a planet wheel shaft rivet pressing structure, it is characterized in that, the end face that planet wheel shaft (3) exposes one end from planetary wheel carrier (4) is provided with annular groove (8), and the outer rim of annular groove (8) is protruding structure (9).
2. planet wheel shaft rivet pressing structure as claimed in claim 1, is characterized in that, described protruding structure (9) root reduces gradually to the cross section of end face, and the inner side of protruding structure (9) is the first inclined-plane (A).
3. planet wheel shaft rivet pressing structure as claimed in claim 2, is characterized in that, the width of described annular groove (8) is 2mm; Total height (the h of protruding structure (9)
3) be 4mm, compared to the height (h of annular groove (8) inner side
1) be 1mm, the height (h of the first inclined-plane (A)
2) be 2mm; The thickness (d) of protruding structure (9) root is 1.5mm; The first inclined-plane (A) is 15 ° compared to the tilt angle (α) of vertical plane.
4. planet wheel shaft rivet pressing structure as claimed in claim 3, is characterized in that, the outside of described protruding structure (9) is the second inclined-plane (B).
5. planet wheel shaft rivet pressing structure as claimed in claim 4, it is characterized in that, the height on described the second inclined-plane (B) is the total height (h3) of protruding structure (9), and the second inclined-plane (B) is 5 ° compared to the tilt angle (β) of vertical plane.
6. the planet wheel shaft rivet pressing structure as described in any one in claim 1-5, it is characterized in that, in described planetary wheel carrier (4) for assembling between the inwall of mounting hole of planet wheel shaft (3) and end face by the 3rd inclined-plane (C) transition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420062103.6U CN203756949U (en) | 2014-02-11 | 2014-02-11 | Planet wheel axle riveting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420062103.6U CN203756949U (en) | 2014-02-11 | 2014-02-11 | Planet wheel axle riveting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203756949U true CN203756949U (en) | 2014-08-06 |
Family
ID=51252228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420062103.6U Expired - Fee Related CN203756949U (en) | 2014-02-11 | 2014-02-11 | Planet wheel axle riveting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203756949U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109108649A (en) * | 2018-10-17 | 2019-01-01 | 大连豪森设备制造有限公司 | A kind of the intelligent recognition flexible assembly system and its working method of planet axis |
| CN109940364A (en) * | 2019-03-20 | 2019-06-28 | 佛山市奥迪斯传动科技有限公司 | The riveting system of the riveting method and application this method of synchronous pulley and retaining ring |
-
2014
- 2014-02-11 CN CN201420062103.6U patent/CN203756949U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109108649A (en) * | 2018-10-17 | 2019-01-01 | 大连豪森设备制造有限公司 | A kind of the intelligent recognition flexible assembly system and its working method of planet axis |
| CN109940364A (en) * | 2019-03-20 | 2019-06-28 | 佛山市奥迪斯传动科技有限公司 | The riveting system of the riveting method and application this method of synchronous pulley and retaining ring |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140806 Termination date: 20170211 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |