CN207034128U - A kind of axle shaft gear - Google Patents
A kind of axle shaft gear Download PDFInfo
- Publication number
- CN207034128U CN207034128U CN201721003609.XU CN201721003609U CN207034128U CN 207034128 U CN207034128 U CN 207034128U CN 201721003609 U CN201721003609 U CN 201721003609U CN 207034128 U CN207034128 U CN 207034128U
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- Prior art keywords
- oil
- hole
- convex shoulder
- wheel body
- groove
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Abstract
The utility model provides a kind of axle shaft gear, belongs to field of mechanical technique.It solves the problems such as existing axle shaft gear lubrication is bad.This axle shaft gear includes wheel shaft and wheel body, the outer wall of wheel body is evenly equipped with some external gear teeths, teeth groove is formed between two neighboring external gear teeth, wheel shaft and wheel body offer internal spline axis hole, wheel body is coaxially disposed and axially projecting convex shoulder with internal spline axis hole towards having on the end face of wheel shaft side, the inner ring of convex shoulder is connected to the junction of wheel shaft and wheel body, the outer ring of convex shoulder is located at the center of the end face of wheel body, several circumferential equally distributed oil-through-holes are offered on wheel body, oil-through-hole is obliquely installed and the upper end of oil-through-hole is communicated in teeth groove, the lower end of oil-through-hole is communicated at the inner ring of convex shoulder, offered on convex shoulder and lead to oil groove one correspondingly with oil-through-hole, the inner of logical oil groove one is communicated in corresponding oil-through-hole, the outer end of logical oil groove one is communicated in the outer ring of convex shoulder.The utility model has the advantages that high lubricating effect, structural strength are high.
Description
Technical field
The utility model belongs to field of mechanical technique, is related to a kind of gear, more particularly to a kind of axle shaft gear.
Background technology
Axle shaft gear is a kind of bevel gear, is the important component of formed automobile differential mechanism, and its structure is to bore tooth outwardly, between two parties
Built-in spline axis hole.Gear built in automobile differential needs good lubricant environment, in order to prevent the lubricating oil in differential mechanism
Excessive, each output end is equipped with corresponding sealing structure.
Such as Chinese patent literature data discloses a kind of blind hole type half axle gear [application number：201220472440.3；Award
Weigh notification number：CN202746536U], it is made up of bevel gear, shoulder, internal spline axis hole and left side, and bevel gear small end starts from
Left side, the big end of bevel gear are connected as a body with right side shoulder, and built-in axial internal spline axis hole terminates in left side and forms blind hole
Structure, it is separated by escape between internal spline axis hole and left side.
Above-mentioned blind hole type half axle gear, its left side directly enclose internal spline axis hole one end, and blind hole structure is cut off
Internal spline axis hole and the oil spilling passage for matching somebody with somebody splined shaft fit clearance, the problem of being leaked in the absence of greasy dirt, but blind hole structure makes
Obtaining the connected mode of semiaxis and axle shaft gear will change, and on the outside of axle shaft gear and need what is lubricated, and abrasion not so occurs
Greatly, the problem of easy-to-rust.Also one kind is to increase pad between differential casing and axle shaft gear to avoid wearing, but is padded
Lubricant effect between piece and axle shaft gear is bad, and axle shaft gear also has the problem of structural strength is not ideal enough.
The content of the invention
The purpose of this utility model is to be directed to the above-mentioned problems in the prior art, there is provided a kind of high lubricating effect,
The good axle shaft gear of structural strength.
The purpose of this utility model can be realized by following technical proposal：A kind of axle shaft gear, including be connected
Wheel shaft and wheel body, the outer wall of described wheel body is evenly equipped with some external gear teeths, teeth groove is formed between two neighboring external gear teeth, described
Wheel shaft and wheel body offer the internal spline axis hole being coaxially disposed, it is characterised in that described wheel body is towards on the end face of wheel shaft side
With being coaxially disposed with internal spline axis hole and axially projecting convex shoulder, the inner ring of described convex shoulder are connected to the company of wheel shaft and wheel body
Place is met, the outer ring of convex shoulder is located at the center of the end face of wheel body, and it is circumferential equally distributed that several are offered on described wheel body
Oil-through-hole, described oil-through-hole is obliquely installed and the upper end of oil-through-hole is communicated in teeth groove, and the lower end of oil-through-hole is communicated in convex shoulder
At inner ring, offered on described convex shoulder and lead to oil groove one, the inner connection of described logical oil groove one correspondingly with oil-through-hole
In corresponding oil-through-hole, the outer end of logical oil groove one is communicated in the outer ring of convex shoulder.
This axle shaft gear adds the thickness of wheel body by the setting of convex shoulder, improves structural strength, improves wheel body
Anti-pressure ability, and convex shoulder is used for support pad, reduces the contact area of axle shaft gear and pad, avoids axle shaft gear from rotating
When and rotated with mobile gasket, the setting of oil-through-hole make it that lubricating oil circulation is good, and the lubrication at external gear teeth and cam inner ring is imitated
Fruit is good, reduces abrasion, and the setting of logical oil groove one is easy to lubricating oil to circulate, and lubricating oil is easily formed between convex shoulder and pad
Oil film, lubricity is good, and abrasion is small, service life length.
In a kind of above-mentioned axle shaft gear, described convex shoulder is provided with a circle annularly and is connected with each logical oil groove one
Logical annular groove, described annular groove are coaxially disposed with internal spline axis hole.Annular groove circulates for lubricating oil, improves lubricity,
It is more convenient for forming oil film between convex shoulder and pad.
Several logical oil grooves two are circumferentially uniformly offered in a kind of above-mentioned axle shaft gear, on described convex shoulder, it is described
The outer end of logical oil groove two be communicated in annular groove, the inner of logical oil groove two is communicated to the outer wall of wheel shaft.The setting of logical oil groove two is just
In the formation of oil film, while it is easy to lubricating oil to be lubricated wheel shaft outer wall, increases the service life.
In a kind of above-mentioned axle shaft gear, the quantity of described logical oil groove two is consistent with the quantity of logical oil groove one, and one
Individual logical oil groove two is located at the centering of two neighboring logical oil groove one.So lubricating oil circulation is good, not cracky after oil film is formed.
In a kind of above-mentioned axle shaft gear, the quantity of described oil-through-hole, logical oil groove one and logical oil groove two is three.
So structural strength and lubricity is ideal.
In a kind of above-mentioned axle shaft gear, the junction of described convex shoulder and wheel shaft uses round-corner transition.So reduce
Stress concentration, extend service life.
In a kind of above-mentioned axle shaft gear, the inner of described external gear teeth and the edge of outer end are equipped with chamfering.So
It is easy to the engagement of external gear teeth, and engaged transmission process is steady, will not produce circular runout and produce vibration, stable transmission, make an uproar
Sound is small.
Compared with prior art, the structural strength of this axle shaft gear is high, and anti-pressure ability is good, and lubricity is good, and abrasion is small,
Service life is grown, and can reduce stress concentration phenomenon in addition, engaged transmission stability is good, and noise is small.
Brief description of the drawings
Fig. 1 is the structure schematic cross-sectional view of this axle shaft gear.
Fig. 2 is the structure left view schematic diagram of this axle shaft gear.
In figure, 1, wheel shaft；2nd, wheel body；3rd, external gear teeth；4th, internal spline axis hole；5th, convex shoulder；6th, oil-through-hole；7th, oil groove one is led to；
8th, annular groove；9th, oil groove two is led to；10th, fillet；11st, chamfering.
Embodiment
It is specific embodiment of the utility model and with reference to accompanying drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these embodiments.
As depicted in figs. 1 and 2, this axle shaft gear includes the wheel shaft 1 and wheel body 2 being connected, and the outer wall of wheel body 2 is evenly equipped with
Some external gear teeths 3, teeth groove are formed between two neighboring external gear teeth 3, wheel shaft 1 and wheel body 2 offer the female splined shaft being coaxially disposed
Hole 4, wheel body 2 are coaxially disposed and axially projecting convex shoulder 5 with internal spline axis hole 4 towards having on the end face of the side of wheel shaft 1, convex shoulder 5
Inner ring be connected to the junction of wheel shaft 1 and wheel body 2, the outer ring of convex shoulder 5 is located at the center of the end face of wheel body 2, opened on wheel body 2
Provided with several circumferential equally distributed oil-through-holes 6, oil-through-hole 6 is obliquely installed and the upper end of oil-through-hole 6 is communicated in teeth groove, leads to oil
The lower end in hole 6 is communicated at the inner ring of convex shoulder 5, is offered on convex shoulder 5 and is led to oil groove 1 correspondingly with oil-through-hole 6, leads to oil groove
One 7 the inner is communicated in corresponding oil-through-hole 6, and the outer end of logical oil groove 1 is communicated in the outer ring of convex shoulder 5.
Further describe in detail, in order to improve lubricity, convex shoulder 5 is provided with a circle annularly and is connected with each logical oil groove 1
Logical annular groove 8, annular groove 8 are coaxially disposed with internal spline axis hole 4, circumferential on convex shoulder 5 uniformly to offer several logical oil grooves two
9, the outer end of logical oil groove 29 is communicated in annular groove 8, and the inner of logical oil groove 29 is communicated to the outer wall of wheel shaft 1, leads to the number of oil groove 29
Amount is consistent with the quantity of logical oil groove 1, and a logical oil groove 29 is located at the centering of two neighboring logical oil groove 1.The present embodiment
The quantity of middle oil-through-hole 6, logical oil groove 1 and logical oil groove 29 is three.
In order to reduce stress concentration, the junction of convex shoulder 5 and wheel shaft 1 uses the transition of fillet 10；For engaged transmission process
Steadily, the inner of external gear teeth 3 and the edge of outer end are equipped with chamfering 11.
Specific embodiment described herein is only to the utility model spirit explanation for example.The utility model institute
Category those skilled in the art can make various modifications or supplement to described specific embodiment or using similar
Mode substitute, but without departing from spirit of the present utility model or surmount scope defined in appended claims.
Claims (7)
1. a kind of axle shaft gear, including the wheel shaft being connected（1）And wheel body（2）, described wheel body（2）If outer wall be evenly equipped with
Dry external gear teeth（3）, two neighboring external gear teeth（3）Between form teeth groove, described wheel shaft（1）And wheel body（2）Offer and coaxially set
The internal spline axis hole put（4）, it is characterised in that described wheel body（2）Towards wheel shaft（1）Have on the end face of side and female splined shaft
Hole（4）It is coaxially disposed and axially projecting convex shoulder（5）, described convex shoulder（5）Inner ring be connected to wheel shaft（1）And wheel body（2）'s
Junction, convex shoulder（5）Outer ring be located at wheel body（2）End face center, described wheel body（2）On offer several circumferences
Equally distributed oil-through-hole（6）, described oil-through-hole（6）It is obliquely installed and oil-through-hole（6）Upper end be communicated in teeth groove, oil-through-hole
（6）Lower end be communicated in convex shoulder（5）Inner ring at, described convex shoulder（5）On offer and oil-through-hole（6）One-to-one logical oil
Groove one（7）, described logical oil groove one（7）The inner be communicated in corresponding oil-through-hole（6）, lead to oil groove one（7）Outer end be communicated in
Convex shoulder（5）Outer ring.
A kind of 2. axle shaft gear according to claim 1, it is characterised in that described convex shoulder（5）It is in ring to be provided with a circle
Shape and with each logical oil groove one（7）The annular groove being connected（8）, described annular groove（8）With internal spline axis hole（4）Coaxially set
Put.
A kind of 3. axle shaft gear according to claim 2, it is characterised in that described convex shoulder（5）Upper circumference uniformly opens up
There are several logical oil grooves two（9）, described logical oil groove two（9）Outer end be communicated in annular groove（8）, lead to oil groove two（9）The inner
It is communicated to wheel shaft（1）Outer wall.
A kind of 4. axle shaft gear according to claim 3, it is characterised in that described logical oil groove two（9）Quantity with it is logical
Oil groove one（7）Quantity it is consistent, a logical oil groove two（9）Positioned at two neighboring logical oil groove one（7）Centering at.
A kind of 5. axle shaft gear according to claim 4, it is characterised in that described oil-through-hole（6）, logical oil groove one（7）
With logical oil groove two（9）Quantity be three.
6. according to a kind of axle shaft gear described in any one of claim 1 to 5, it is characterised in that described convex shoulder（5）With wheel
Axle（1）Junction use fillet（10）Transition.
7. according to a kind of axle shaft gear described in any one of claim 1 to 5, it is characterised in that described external gear teeth（3）'s
Inner and outer end edge is equipped with chamfering（11）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721003609.XU CN207034128U (en) | 2017-08-11 | 2017-08-11 | A kind of axle shaft gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721003609.XU CN207034128U (en) | 2017-08-11 | 2017-08-11 | A kind of axle shaft gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207034128U true CN207034128U (en) | 2018-02-23 |
Family
ID=61486917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721003609.XU Expired - Fee Related CN207034128U (en) | 2017-08-11 | 2017-08-11 | A kind of axle shaft gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207034128U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109027183A (en) * | 2018-08-06 | 2018-12-18 | 江苏里华机械股份有限公司 | A kind of special improved gear |
| CN110219973A (en) * | 2019-06-04 | 2019-09-10 | 广东技术师范大学 | A kind of gear transmission structure |
-
2017
- 2017-08-11 CN CN201721003609.XU patent/CN207034128U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109027183A (en) * | 2018-08-06 | 2018-12-18 | 江苏里华机械股份有限公司 | A kind of special improved gear |
| CN110219973A (en) * | 2019-06-04 | 2019-09-10 | 广东技术师范大学 | A kind of gear transmission structure |
| CN110219973B (en) * | 2019-06-04 | 2024-04-02 | 广东技术师范大学 | Gear transmission structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 317600 Ganjiang Town Industrial Zone, Yuhuan City, Taizhou City, Zhejiang Province Patentee after: Taizhou Zhongjie Gear Co.,Ltd. Address before: 317600 Ganjiang Town Industrial Zone, Yuhuan City, Taizhou City, Zhejiang Province Patentee before: Yuhuan automobile gear plant |
|
| CP01 | Change in the name or title of a patent holder | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180223 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |