CN201330779Y - Heavy-load shock-resistant wheel shaft connectiing structure - Google Patents
Heavy-load shock-resistant wheel shaft connectiing structure Download PDFInfo
- Publication number
- CN201330779Y CN201330779Y CNU2008202229886U CN200820222988U CN201330779Y CN 201330779 Y CN201330779 Y CN 201330779Y CN U2008202229886 U CNU2008202229886 U CN U2008202229886U CN 200820222988 U CN200820222988 U CN 200820222988U CN 201330779 Y CN201330779 Y CN 201330779Y
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- groove
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Abstract
The utility model relates to a heavy-load shock-resistant wheel shaft connecting structure, which comprises a shaft and a bearing, wherein, one end part of which is arranged outside the bearing of the shaft is provided with a circle of groove, and a retainer ring is arranged inside the groove. The diameter of the inner edge of the retainer ring is more than or equal to the diameter of the inner edge of the groove and is smaller than the diameter of the outer edge of the shaft. The diameter of the outer edge of the retainer ring is more than the diameter of the outer edge of the shaft and is smaller than the diameter of the outer edge of the bearing. The heavy-load shock-resistant wheel shaft connecting structure not only greatly improves the connection firmness, but also is easy to replace if damaged; moreover, for the wearable components are of a standard element, the maintenance difficulty and the maintenance cost are greatly reduced.
Description
Technical field
The utility model belongs to axle and bearing connection area, relates in particular to a kind of heavily loaded shock resistance wheel Axile connection structure device.
Background technique
Common wheel shaft assembling mainly is to rely on bearing inner race to play firm connection, prevent the effect that bearing comes off, as shown in Figure 1 with the power that is connected that the interference fit of bearing produces.During this mode is applied to, underloading equipment frock effect is obvious, but bearing inner race tends to come off because of overweight load and strong impact when being applied to heavy duty, especially the most obvious with wheel with being connected of wheel shaft, so the anti-vibration ability of interference fit Placement is quite low.
Therefore, in heavily loaded working environment, under heavily loaded high-strength impact, come off, need on the termination of axle, design the mode of structure that a restrictive axial is slided in order to prevent bearing; Especially,, make good restriction, especially in the bent axle that forges more than 3 tons, very easily produce obscission so can not come off to the axial translation of bearing because wheel is that a free body can not provide fixing pedestal.So existing heavily loaded axle set is loaded onto and can be adopted in the spacing technology of termination increase tapped hole.The firm degree of its connection is still also very easily destroyed because of screw thread and bolt is easily cut off though improved, thereby makes that whole axletree can not continue to use, and causes very big waste.
Summary of the invention
The purpose of this utility model is: at the described problem that prior art exists, take turns the Axile connection structure device for the user provides a kind of firm degree height, heavily loaded shock resistance easy to use, that save cost.
The purpose of this utility model realizes by implementing following technical proposals:
A kind of heavily loaded shock resistance wheel Axile connection structure device comprises axle, bearing, and described axle is positioned at the outer end of described bearing a circle groove, and back-up ring is arranged in the described groove.
Its additional technical feature is:
1. the inner edge diameter of described back-up ring is more than or equal to the inner edge diameter of described groove, and less than the external profile diameter of described axle.。
2. the external profile diameter of described back-up ring is greater than the external profile diameter of described axle, and less than the external profile diameter of described bearing.
Linkage structure device of the present utility model as shown in Figure 1, reaches the effect that the restrictive axial translation comes off by the form that increases spacing back-up ring in the termination.Its effective load scope is that back-up ring amasss with going in ring of axle, bearing overlapping; That is to say the active force S1=2 π Rd when adopting spacing back-up ring mode (R is the radius of axle, and d is a back-up ring thickness).
The bearing jointing structure device of existing heavily loaded wheel shaft, as shown in Figure 3, by the sunk screw of bearing termination fixedly the end face baffle plate with Drop-proof, the cross section that its effective load scope is a screw; That is to say, adopt the fixedly active force S2=π r during end face baffle plate mode of sunk screw
2(r is the screw radius).
Can find following advantage very significantly from top analysis:
At first, S1＞S2;
Secondly, the performance index of back-up ring itself all are higher than screw;
The 3rd, after adopting sunk screw fixedly the screw of end face baffle plate mode fractureing, be difficult to take out, and be difficult for changing, and adopt back-up ring very easily removal after bearing comes off of the utility model linkage structure device.In addition, when the structure that the utility model adopts is used for spigot bearing, can not rely on interference fit, assembling and dismounting difficulty also all reduce greatly.
In sum, the design has not only improved the firm degree that connects greatly by increasing the mode of spacing ring washer, also very easily changes after the damage.Simultaneously, flimsy part is that tender makes its maintenance difficulty and maintenance cost also reduce greatly.
Description of drawings
Fig. 1 is a structural representation of the present utility model
Fig. 2 is the structural representation of plain bearing interference fit Placement
Fig. 3 is the structural representation of existing heavy-duty bearing Placement
Reference character: 1 is axle, and 2 is the groove of shaft end, and 3 is bearing, and 4 is back-up ring.
Embodiment
In order to make the purpose of this utility model, technological scheme and advantage clearer,, the utility model is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
A kind of heavily loaded shock resistance wheel Axile connection structure device comprises axle 1, bearing 3, and axle 1 is positioned at bearing 3 outer ends a circle groove 2, and back-up ring 4 is arranged in the groove 2.
In order to reach better using effect, back-up ring big or small extremely important.As preferred embodiment, the inner edge diameter of back-up ring 4 is more than or equal to the inner edge diameter of groove 2, and less than the external profile diameter of axle 1.
Can also simultaneously or adopt following preferred embodiment separately in addition, the external profile diameter of back-up ring 4 is greater than the external profile diameter of axle 1, and less than the external profile diameter of bearing 3.
Below only be preferred embodiment of the present utility model,, all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model not in order to restriction the utility model.
Claims (3)
1, a kind of heavily loaded shock resistance wheel Axile connection structure device comprises axle (1), bearing (3), and it is characterized in that: described axle (1) is positioned at the outer end of described bearing (3) a circle groove (2), and back-up ring (4) is arranged in the described groove (2).
2, heavily loaded shock resistance wheel Axile connection structure device as claimed in claim 1 is characterized in that: the inner edge diameter of described back-up ring (4) is more than or equal to the inner edge diameter of described groove (2), and less than the external profile diameter of described axle (1).
3, heavily loaded shock resistance wheel Axile connection structure device as claimed in claim 1 or 2 is characterized in that: the external profile diameter of described back-up ring (4) is greater than the external profile diameter of described axle (1), and less than the external profile diameter of described bearing (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202229886U CN201330779Y (en) | 2008-11-28 | 2008-11-28 | Heavy-load shock-resistant wheel shaft connectiing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202229886U CN201330779Y (en) | 2008-11-28 | 2008-11-28 | Heavy-load shock-resistant wheel shaft connectiing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201330779Y true CN201330779Y (en) | 2009-10-21 |
Family
ID=41224159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202229886U Expired - Fee Related CN201330779Y (en) | 2008-11-28 | 2008-11-28 | Heavy-load shock-resistant wheel shaft connectiing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201330779Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107838897A (en) * | 2016-09-19 | 2018-03-27 | 广东科达洁能股份有限公司 | The improved storage base device of structure |
-
2008
- 2008-11-28 CN CNU2008202229886U patent/CN201330779Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107838897A (en) * | 2016-09-19 | 2018-03-27 | 广东科达洁能股份有限公司 | The improved storage base device of structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091021 Termination date: 20131128 |