CN204403318U - A kind of Integral hollow pump shaft gear structure - Google Patents
A kind of Integral hollow pump shaft gear structure Download PDFInfo
- Publication number
- CN204403318U CN204403318U CN201420804868.2U CN201420804868U CN204403318U CN 204403318 U CN204403318 U CN 204403318U CN 201420804868 U CN201420804868 U CN 201420804868U CN 204403318 U CN204403318 U CN 204403318U
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- gear
- shaft
- former
- integral hollow
- pump shaft
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Abstract
The utility model discloses a kind of Integral hollow pump shaft gear structure, comprise gear former (6), gear shaft (1) and gear (5), gear shaft (1) is through gear former (6), and gear (5) ring week is arranged on gear former (6) outer; Gear shaft (1) is cylinder hollow axle, and one end of the hollow cavity of gear shaft (1) is provided with spline (4).The utility model is integral hollow shaftgear structure, and avoid flat key fracture, prevent bearing from damaging, the pin that draws simultaneously being convenient to spline is processed, and improves precision.
Description
Technical field
The utility model relates to a kind of Integral hollow pump shaft gear structure, is specifically related to the field of ZL50 planetary transmission.
Background technique
The pump shaft gear structure of conventional planetary formula gearbox is actuation gear and solid shaft is Split type structure, and connect by a flat key, be connected torsion pass by singly-bound with pump, two ends are bearings in casing and housing, and by back-up ring and shaft shoulder axially locating.But pump shaft gear split-type structural existing defects, processing technology is complicated, there is larger cumulative error during assembling, and the single key slot insufficient strength of pump shaft, and single key slot lost efficacy, and then damaged spring bearing, and gearbox also can be caused to be out of order.
Model utility content
The utility model is for prior art above shortcomings, the utility model provides a kind of pump shaft gear structure of integral hollow shaft type, gear former, gear shaft and gear are integrated type, on actuation gear former centered by gear hollow axle, be uniformly distributed some through holes, be conducive to the splash lubrication of bearing oil, prevent retainer from damaging.Gear shaft two ends arrange the bearing shaft shoulder of bearing neck and protrusion, and the bearing shaft shoulder is bearing axially locating, and gear hollow shaft internal chamber wall has spline, is connected with pump.
Technical solutions of the utility model are as follows: a kind of Integral hollow pump shaft gear structure, comprises gear former, gear shaft and gear.
Gear shaft, through gear former, is arranged on gear former outer gear ring week; Gear shaft is cylinder hollow axle, and one end of the hollow cavity of gear shaft is provided with spline.Gear former, gear shaft and gear are one-body molded, are Integral hollow pump shaft gear structure, avoid flat key fracture.
The two ends of gear shaft are provided with bearing neck and the bearing shaft shoulder, and the bearing shaft shoulder protrudes gear shaft surface, and the bearing shaft shoulder is bearing axially locating.
More preferably, gear former is provided with some through holes.Generally, through hole, centered by the axis of gear shaft, is evenly distributed on gear former, is conducive to the splash lubrication of bearing oil, prevents retainer from damaging.
Spline is involute splines, and single key slot is optimized for involute splines, adds gear shaft join strength, reduces planetary transmission rate of fault.
The utility model beneficial effect is as follows:
The utility model is integral hollow shaftgear structure, and avoid flat key fracture, prevent bearing from damaging, the pin that draws simultaneously being convenient to spline is processed, and improves precision.
Further, single key slot is optimized for involute splines, adds intensity, reduces planetary transmission rate of fault.
Accompanying drawing explanation
Fig. 1 is the structural schematic block diagram of a kind of Integral hollow pump shaft of the utility model gear structure.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
Below with reference to accompanying drawing of the present utility model; clear, complete description and discussion are carried out to the technological scheme in the utility model embodiment; obviously; as described herein is only a part of example of the present utility model; it is not whole examples; based on the embodiment in the utility model, the every other embodiment that those of ordinary skill in the art obtain under the prerequisite not making creative work, belongs to protection domain of the present utility model.
For the ease of the understanding to the utility model embodiment, be further explained for specific embodiment below in conjunction with accompanying drawing, and each embodiment does not form the restriction to the utility model embodiment.
As shown in Figure 1, a kind of Integral hollow pump shaft gear structure, comprises gear former 6, gear shaft 1 and gear 5.
Gear shaft 1 is through gear former 6, and gear 5 ring week is arranged on gear former 6 outer; Gear shaft 1 is cylinder hollow axle, and one end of the hollow cavity of gear shaft 1 arranges SAE involute splines 4, is connected with pump.
The two ends of gear shaft 1 are provided with bearing neck 7 and the bearing shaft shoulder 3, and the bearing shaft shoulder 3 is bearing axially locating.
More preferably, gear former 6 is provided with some through holes 2.Generally, through hole 2, centered by the axis of gear shaft 1, is evenly distributed on gear former 6, is conducive to the splash lubrication of bearing oil, prevents retainer from damaging.
Spline 4 is involute splines, and single key slot is optimized for involute splines, adds gear shaft join strength, reduces planetary transmission rate of fault.
Gear former 6, gear shaft 1 and gear 5 are one-body molded, are Integral hollow pump shaft gear structure, avoid flat key fracture.
Below be only preferred implementation of the present utility model; be noted that for those skilled in the art; under the prerequisite not departing from the utility model principle, can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (5)
1. an Integral hollow pump shaft gear structure, is characterized in that, comprises gear former (6), gear shaft (1) and gear (5),
Described gear shaft (1) is through gear former (6), and described gear (5) ring week is arranged on gear former (6) outer;
Described gear shaft (1), gear former (6) and gear (5) are one-body molded;
Described gear shaft (1) is cylinder hollow axle, and one end of the hollow cavity of described gear shaft (1) is provided with spline (4).
2. a kind of Integral hollow pump shaft gear structure according to claim 1, is characterized in that, the two ends of described gear shaft (1) are provided with bearing neck (7) and the bearing shaft shoulder (3).
3. a kind of Integral hollow pump shaft gear structure according to claim 1, is characterized in that, described gear former (6) is provided with some through holes (2).
4. a kind of Integral hollow pump shaft gear structure according to claim 3, is characterized in that, described through hole (2), centered by the axis of gear shaft (1), is evenly distributed on gear former (6).
5. a kind of Integral hollow pump shaft gear structure according to claim 1, it is characterized in that, described spline (4) is involute splines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420804868.2U CN204403318U (en) | 2014-12-19 | 2014-12-19 | A kind of Integral hollow pump shaft gear structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420804868.2U CN204403318U (en) | 2014-12-19 | 2014-12-19 | A kind of Integral hollow pump shaft gear structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204403318U true CN204403318U (en) | 2015-06-17 |
Family
ID=53427178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420804868.2U Active CN204403318U (en) | 2014-12-19 | 2014-12-19 | A kind of Integral hollow pump shaft gear structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204403318U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107882855A (en) * | 2016-09-29 | 2018-04-06 | 乔治费歇尔汽车产品(昆山)有限公司 | Transfer gear ring gear shaft, its manufacture method and include its equipment |
| CN109139860A (en) * | 2018-09-12 | 2019-01-04 | 中国航发湖南动力机械研究所 | Bevel gear and aircraft engine accessory gear-box |
| CN110605528A (en) * | 2018-06-15 | 2019-12-24 | 大众汽车有限公司 | Method for producing a flanged shaft, flanged shaft and blank |
-
2014
- 2014-12-19 CN CN201420804868.2U patent/CN204403318U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107882855A (en) * | 2016-09-29 | 2018-04-06 | 乔治费歇尔汽车产品(昆山)有限公司 | Transfer gear ring gear shaft, its manufacture method and include its equipment |
| CN107882855B (en) * | 2016-09-29 | 2021-07-09 | 乔治费歇尔金属成型科技（昆山）有限公司 | Transfer case ring gear shaft, manufacturing method thereof and apparatus including the same |
| CN110605528A (en) * | 2018-06-15 | 2019-12-24 | 大众汽车有限公司 | Method for producing a flanged shaft, flanged shaft and blank |
| CN110605528B (en) * | 2018-06-15 | 2022-03-01 | 大众汽车有限公司 | Method for producing a flanged shaft, flanged shaft and blank |
| CN109139860A (en) * | 2018-09-12 | 2019-01-04 | 中国航发湖南动力机械研究所 | Bevel gear and aircraft engine accessory gear-box |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |