CN203441950U - Gear shaft - Google Patents
Gear shaft Download PDFInfo
- Publication number
- CN203441950U CN203441950U CN201320494118.5U CN201320494118U CN203441950U CN 203441950 U CN203441950 U CN 203441950U CN 201320494118 U CN201320494118 U CN 201320494118U CN 203441950 U CN203441950 U CN 203441950U
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- CN
- China
- Prior art keywords
- hole
- wheel shaft
- shaft body
- utility
- axial
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model discloses a gear shaft which comprises a gear shaft body as well as radial through holes and an axial through hole formed in the gear shaft body, wherein the radial through holes are communicated with the axial through hole. During use, most lubricating oil flows in from the axial through hole and reaches axial surfaces of the gear shaft body through the radial through holes, so that the lubricating oil can reach each needle roller of a needle roller bearing in a process when the gear shaft body and the needle roller bearing are matched for rotation, and sufficient lubrication of the needle roller bearing by the lubricating oil is achieved.
Description
Technical field
The utility model relates to transmission shaft technical field, relates in particular to a kind of wheel shaft.
Background technique
In heavy type lorry transmission-gear box, the quality of bearing lubrication directly affects the usability of gearbox.Wherein, what on reverse idler gear axle, adopt is needle bearing, and needle bearing is relatively high to lubricated requirement.Lubricated quality plays vital effect to the length in needle bearing life-span.Reverse idler gear is in the middle of the driving gear that two do not contact with each other in gearbox, to play the gear of transfer function, it is simultaneously with these two gear engagements, be used for changing the sense of rotation of driven gear, make it identical with driving gear, its effect is to change to turn to change velocity ratio.
At present, in heavy type lorry transmission-gear box, the needle bearing on reverse idler gear axle can not be lubricated fully, thereby causes the life-span of needle bearing to be reduced.During operated by rotary motion, be, on solid reverse idler gear axle, needle bearing is installed, the both sides of needle bearing have for spacing shim, therefore, have just been formed the space of relative closure by solid reverse idler gear axle, pad and gear mesh needle bearing.Lubricant oil can only enter needle bearing by the gap between pad and reverse idler gear axle so.As can be seen here, it is lubricated fully that this structure can not get needle bearing, greatly reduces the working life of needle bearing.
Therefore, how providing a kind of wheel shaft, to realize the sufficient lubrication to needle bearing of lubricant oil, is current those skilled in the art technical problems urgently to be resolved hurrily.
Model utility content
In view of this, the purpose of this utility model is to provide a kind of wheel shaft, to realize the sufficient lubrication to needle bearing of lubricant oil.
In order to achieve the above object, the utility model provides following technological scheme:
, comprise wheel shaft body, also comprise the radial direction through hole and the axial hole that are arranged on described wheel shaft body, described radial direction through hole is communicated with described axial hole.
Preferably, the dead in line of the axis of above-mentioned axial hole and described wheel shaft body.
Preferably, above-mentioned radial direction through hole comprises the first through hole and the second through hole, and described the first through hole leads to a side of described wheel shaft body, and described the second through hole leads to the opposite side of described wheel shaft body.
Preferably, the dead in line of above-mentioned the first through hole and described the second through hole.
Preferably, above-mentioned wheel shaft body is reverse idler gear axle.
The wheel shaft that the utility model provides, comprises wheel shaft body, also comprises the radial direction through hole and the axial hole that are arranged on described wheel shaft body, and described radial direction through hole is communicated with described axial hole.During use, most of lubricant oil can flow into from axial hole, by radial direction through hole, arrive again the axial plane of wheel shaft body, at wheel shaft body, coordinate with needle bearing so in the process of rotating, lubricant oil just can arrive on each needle roller of needle bearing, thereby realizes the sufficient lubrication to needle bearing of lubricant oil.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is embodiments more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The structural representation of the wheel shaft that Fig. 1 provides for the utility model embodiment.
In upper Fig. 1:
Embodiment
The utility model embodiment provides a kind of wheel shaft, to realize the sufficient lubrication to needle bearing of lubricant oil.
For making the utility model embodiment's object, technological scheme and advantage clearer, below in conjunction with the accompanying drawing in the utility model embodiment, technological scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, rather than whole embodiments.Embodiment based in the utility model, those of ordinary skills are not making the every other embodiment who obtains under creative work prerequisite, all belong to the scope of the utility model protection.
Please refer to Fig. 1, the structural representation of the wheel shaft that Fig. 1 provides for the utility model embodiment.Arrow in Fig. 1 is depicted as the flow direction of lubricant oil.
The wheel shaft that the utility model embodiment provides, comprises wheel shaft body 1, also comprises the radial direction through hole and the axial hole 2 that are arranged on wheel shaft body 1, and radial direction through hole is communicated with axial hole 2.During use, most of lubricant oil can flow into from axial hole 2, by radial direction through hole, arrive again the axial plane of wheel shaft body 1, at wheel shaft body 1, coordinate with needle bearing 5 so in the process of rotating, lubricant oil just can arrive on each needle roller of needle bearing 5, thereby realizes the sufficient lubrication to needle bearing 5 of lubricant oil.
And, allow needle bearing 5 reach best usability, extended the working life of needle bearing 5.In addition, wheel shaft body 1 weight of this structure is lighter, is more convenient for workman's assembling.
Wherein, the dead in line of the axis of axial hole 2 and wheel shaft body 1, is arranged on axial hole 2 in the center portion of wheel shaft body 1, prevents from when wheel shaft body 1 from rotating producing vibrations because weight is uneven, brings harmful effect.
Wherein, radial direction through hole comprises the first through hole 3 and the second through hole 4, the first through hole 3 leads to a side of wheel shaft body 1, the second through hole 4 leads to the opposite side of wheel shaft body 1, like this, lubricant oil can arrive respectively by the first through hole 3 and the second through hole 4 axial plane of the both sides of wheel shaft body 1, and lubricated more abundant, lubricated speed is also accelerated.Wherein, the dead in line of the first through hole 3 and the second through hole 4, prevents from when wheel shaft body 1 from rotating producing vibrations because weight is uneven, brings harmful effect.
Wherein, wheel shaft body 1 can be reverse idler gear axle, certainly, can be also other wheel shafts, and the utility model is not specifically limited wheel shaft body 1.
Above-mentioned explanation to the disclosed embodiments, makes professional and technical personnel in the field can realize or use the utility model.To these embodiments' multiple modification, will be apparent for those skilled in the art, General Principle as defined herein can, in the situation that not departing from spirit or scope of the present utility model, realize in other embodiments.Therefore, the utility model will can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (5)
1. a wheel shaft, comprises wheel shaft body (1), it is characterized in that, also comprises the radial direction through hole and the axial hole (2) that are arranged on described wheel shaft body (1), and described radial direction through hole is communicated with described axial hole (2).
2. wheel shaft according to claim 1, is characterized in that, the dead in line of the axis of described axial hole (2) and described wheel shaft body (1).
3. wheel shaft according to claim 1, it is characterized in that, described radial direction through hole comprises the first through hole (3) and the second through hole (4), and described the first through hole (3) leads to a side of described wheel shaft body (1), and described the second through hole (4) leads to the opposite side of described wheel shaft body (1).
4. wheel shaft according to claim 3, is characterized in that, the dead in line of described the first through hole (3) and described the second through hole (4).
5. wheel shaft according to claim 1, is characterized in that, described wheel shaft body (1) is reverse idler gear axle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320494118.5U CN203441950U (en) | 2013-08-13 | 2013-08-13 | Gear shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320494118.5U CN203441950U (en) | 2013-08-13 | 2013-08-13 | Gear shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203441950U true CN203441950U (en) | 2014-02-19 |
Family
ID=50093009
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320494118.5U Expired - Lifetime CN203441950U (en) | 2013-08-13 | 2013-08-13 | Gear shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203441950U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105736557A (en) * | 2016-03-18 | 2016-07-06 | 重庆长安汽车股份有限公司 | Idling matched structure of gear and shaft of manual transmission |
| CN111043279A (en) * | 2019-12-18 | 2020-04-21 | 潍柴动力股份有限公司 | Idle gear device and engine |
-
2013
- 2013-08-13 CN CN201320494118.5U patent/CN203441950U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105736557A (en) * | 2016-03-18 | 2016-07-06 | 重庆长安汽车股份有限公司 | Idling matched structure of gear and shaft of manual transmission |
| CN111043279A (en) * | 2019-12-18 | 2020-04-21 | 潍柴动力股份有限公司 | Idle gear device and engine |
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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: 20140219 |
|
| CX01 | Expiry of patent term |