CN202690713U - Hollow shaft for speed reducer - Google Patents
Hollow shaft for speed reducer Download PDFInfo
- Publication number
- CN202690713U CN202690713U CN 201220339611 CN201220339611U CN202690713U CN 202690713 U CN202690713 U CN 202690713U CN 201220339611 CN201220339611 CN 201220339611 CN 201220339611 U CN201220339611 U CN 201220339611U CN 202690713 U CN202690713 U CN 202690713U
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- CN
- China
- Prior art keywords
- speed reducer
- hollow shaft
- axis body
- hole
- cross
- 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 - Fee Related
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Abstract
The utility model relates to a hollow shaft for a speed reducer. The hollow shaft is suitable to be arranged at the position of a main shaft on the speed reducer. The hollow shaft comprises a long cylindrical shaft body. The hollow shaft is characterized in that a through hole for communicating two end surfaces is formed in the shaft body, and is coaxial with the shaft body. By adoption of the hollow shaft, the speed reducer can be subjected to cooling heat elimination, the service life of a sealing element is prolonged, and the running noise of the speed reducer is reduced.
Description
Technical field
The utility model relates to a kind of speed reducer main shaft, is the hollow spindle that can carry out to speed reducer cooling specifically.
Background technique
At present, in speed reducer manufacturing and utilization field, the temperature rising index of speed reducer in running is an important indicator weighing its quality.Speed reducer is in running, if temperature rise is too high, then can cause the heat ageing that is subjected to of Sealing, and shortened its working life; In addition, temperature raises and also can cause lubricating oil viscosity to increase, and affects lubrication effect, causes speed reducer operation noise to increase.
The model utility content
Problem to be solved in the utility model provides a kind of speed reducer hollow shaft, adopts this hollow shaft, can carry out cooling to speed reducer, increases the working life of Sealing, reduces speed reducer operation noise.
For addressing the above problem, take following scheme:
A kind of speed reducer of the present utility model comprises axis body with hollow shaft, and axis body is elongated cylindrical.Be characterized in that the through hole that is communicated with both ends of the surface is arranged on the described axis body, through hole is concentric with described axis body.
The further improvement of the utility model scheme is the interior step that annular is arranged in the position near both ends of the surface on the described axis body outer side wall, so that the cross-sectional diameter at axis body two ends is less than the cross-sectional diameter of axis body intermediate portion.
The further improvement of the utility model scheme is the outer step that annular is arranged in the position near two ends on the described through hole, so that the cross-sectional diameter at through hole two ends is less than the cross-sectional diameter of through hole intermediate portion.
Take such scheme, have the following advantages:
Because the through hole that is communicated with both ends of the surface is arranged on the axis body of a kind of speed reducer of the present utility model with hollow shaft, this hollow shaft is loaded on the position of speed reducer main shaft, and connect respectively intake pipe and outlet pipe at the hollow shaft two ends, speed reducer is in operation, cooling water can be introduced hollow shaft by intake pipe, and finally be flowed out by outlet pipe.Cooling water is in the process of hollow shaft of flowing through, can carry out heat exchange with speed reducer by the hollow shaft axial wall out of, and the heat that produces when speed reducer moved taken by outlet pipe, thereby realize the cooling to speed reducer, so that Sealing can not be subjected to heat ageing, its life-span increases; And oil body also obtains lowering, and its lubrication effect is better, can effectively lower speed reducer operation noise.
Description of drawings
Fig. 1 is the structural representation that a kind of speed reducer of the present utility model is used hollow shaft;
To be a kind of speed reducer of the present utility model be installed on use view on the speed reducer with hollow shaft to Fig. 2.
Embodiment
As shown in Figure 1, a kind of speed reducer of the present utility model comprises axis body 1 with a kind of speed reducer of hollow shaft with hollow shaft, and axis body 1 is elongated cylindrical.The through hole 2 that is communicated with both ends of the surface is arranged on the described axis body 1, and through hole 2 is concentric with described axis body 1.The interior step 3 that annular is arranged in the position near both ends of the surface on 1 outer side wall of axis body described in the present embodiment is so that the cross-sectional diameter at axis body 1 two ends is less than the cross-sectional diameter of axis body intermediate portion.The outer step 4 that annular is arranged in the position near two ends on the described through hole 2 is so that the cross-sectional diameter at through hole 2 two ends is less than the cross-sectional diameter of through hole intermediate portion.
As shown in Figure 2, during use, a kind of speed reducer of the present utility model is installed on the main spindle's of speed reducer with hollow shaft, the interior step 3 of the annular at two ends is convenient to the bearing fit with two ends, main shaft place on the speed reducer on axis body 1 outer side wall, and the outer step 4 of annular at through hole 2 two ends is convenient to be connected with outlet pipe with intake pipe by joint.Speed reducer when operation, cooling water is introduced from intake pipe, behind the hollow shaft of flowing through, drawn by outlet pipe again, thereby realize heat exchange between cooling water and the speed reducer, reach the effect of cooling.
Claims (3)
1. a speed reducer hollow shaft comprises axis body (1), and axis body (1) is elongated cylindrical; It is characterized in that the through hole (2) that is communicated with both ends of the surface is arranged on the described axis body (1), through hole (2) is concentric with described axis body (1).
2. speed reducer hollow shaft as claimed in claim 1, it is characterized in that having in the position near both ends of the surface on described axis body (1) outer side wall the interior step (3) of annular, so that the cross-sectional diameter at axis body (1) two ends is less than the cross-sectional diameter of axis body intermediate portion.
3. speed reducer hollow shaft as claimed in claim 1 is characterized in that the upper outer step (4) that annular is arranged in the position near two ends of described through hole (2), so that the cross-sectional diameter at through hole (2) two ends is less than the cross-sectional diameter of through hole intermediate portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220339611 CN202690713U (en) | 2012-07-13 | 2012-07-13 | Hollow shaft for speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220339611 CN202690713U (en) | 2012-07-13 | 2012-07-13 | Hollow shaft for speed reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202690713U true CN202690713U (en) | 2013-01-23 |
Family
ID=47546339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220339611 Expired - Fee Related CN202690713U (en) | 2012-07-13 | 2012-07-13 | Hollow shaft for speed reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202690713U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102777478A (en) * | 2012-07-13 | 2012-11-14 | 无锡市聚英机械制造有限公司 | Hollow shaft for reducer |
| CN104879375A (en) * | 2014-02-28 | 2015-09-02 | 迪尔公司 | Composite Shaft With Core Insert |
-
2012
- 2012-07-13 CN CN 201220339611 patent/CN202690713U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102777478A (en) * | 2012-07-13 | 2012-11-14 | 无锡市聚英机械制造有限公司 | Hollow shaft for reducer |
| CN104879375A (en) * | 2014-02-28 | 2015-09-02 | 迪尔公司 | Composite Shaft With Core Insert |
| CN104879375B (en) * | 2014-02-28 | 2019-08-09 | 迪尔公司 | Built-up shaft with central inserts |
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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: 20130123 Termination date: 20160713 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |