CN202926854U - Transmission shaft assembly of diesel engine - Google Patents
Transmission shaft assembly of diesel engine Download PDFInfo
- Publication number
- CN202926854U CN202926854U CN 201220651369 CN201220651369U CN202926854U CN 202926854 U CN202926854 U CN 202926854U CN 201220651369 CN201220651369 CN 201220651369 CN 201220651369 U CN201220651369 U CN 201220651369U CN 202926854 U CN202926854 U CN 202926854U
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- CN
- China
- Prior art keywords
- drive end
- diesel engine
- shaft assembly
- oil pump
- pump drive
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- 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 provides a transmission shaft assembly of a diesel engine, and belongs to the technical field of machinery. The transmission shaft assembly of the diesel engine solves the problems that the existing transmission shaft is inconvenient to process and the use of the diesel engine is seriously influenced. The transmission shaft assembly of the diesel engine comprises a transmission shaft main body. The two ends of the main body are respectively provided with an oil pump drive end and an air compressor drive end. The oil pump drive end, the air compressor drive end and the main body are coaxially arranged. The air compressor drive end is provided with a tapered roller bearing, and the tapered roller bearing is supported on the end part of the main body. The oil pump drive end is provided with a deep groove ball bearing, and the deep groove ball bearing is supported on the other end part of the main body. The oil pump drive end is further provided with a blocking structure which is used for preventing the deep groove ball bearing from dropping. The transmission shaft assembly of the diesel engine disclosed by the utility model has the advantages of convenience for the diesel engine and the improvement of reliability of the engine.
Description
Technical field
The utility model belongs to field of mechanical technique, relates to the driving-shaft assembly of a kind of transmission shaft, particularly a kind of diesel engine.
Background technique
When diesel engine normal operation running, be its fuel feeding by oil supply system, and oil supply system is to turn round to carry out fuel feeding by the oil pump that the transmission shaft on diesel engine drives in oil supply system at present.Because transmission shaft load when driving oil pump is larger, and change very frequent, and due to the structural characteristics of transmission shaft itself: namely transmission shaft is when arranging, the modes that adopt the shaft shoulder on bearing and transmission shaft to coordinate more, and between the shaft shoulder on bearing bearing and transmission shaft because of the existence of its chamfering, its stress ratio is larger, easily causes fatigue failure and then causes drive shafts fracture, has a strong impact on diesel engine and uses.
Summary of the invention
The purpose of this utility model is to have the problems referred to above for existing technology, has proposed a kind of use that facilitates diesel engine, can improve the driving-shaft assembly of the diesel engine of engine reliability.
The purpose of this utility model can realize by following technical proposal:
a kind of driving-shaft assembly of diesel engine, comprise the transmission shaft body, the two ends of described body have respectively oil pump drive end and air compressor drive end, described oil pump drive end and air compressor drive end and the coaxial setting of above-mentioned body, it is characterized in that, be arranged with tapered roller bearing on described air compressor drive end, described tapered roller bearing is resisted against the end of above-mentioned body, be arranged with deep groove ball bearing on described oil pump drive end, described deep groove ball bearing is resisted against the other end of above-mentioned body, also be provided be used to the barrier structure that prevents that described deep groove ball bearing from coming off on described oil pump drive end.
In the driving-shaft assembly of above-mentioned diesel engine, described barrier structure comprises the lining that is set on the oil pump drive end and the nut that is set on the oil pump drive end, described lining is resisted against on the inner ring of above-mentioned deep groove ball bearing, and described nut is resisted against on lining and described nut is threaded connection on above-mentioned oil pump drive end.
In the driving-shaft assembly of above-mentioned diesel engine, be provided with compact heap between described body and tapered roller bearing, an end of described compact heap is resisted against on the inner ring of tapered roller bearing, and the other end is resisted against the end of body.
In the driving-shaft assembly of above-mentioned diesel engine, the joint of described air compressor drive end and body is provided with chamfering, and above-mentioned compact heap and this chamfering are complementary.
In the driving-shaft assembly of above-mentioned diesel engine, the radius of described chamfering is 1-5mm.
In the driving-shaft assembly of above-mentioned diesel engine, the radius of described chamfering is 3mm.
In the driving-shaft assembly of above-mentioned diesel engine, described deep groove ball bearing is two.
Compared with prior art, the driving-shaft assembly of this diesel engine has the following advantages:
Adopted the diesel engine driving-shaft assembly of said structure, by air compressor drive end place on transmission shaft, chamfering is set, reduced the stress at this place, be convenient to add the withdrawing in man-hour, solve transmission shaft and caused the problem of drive shafts fracture because of fatigue failure, facilitated the use of diesel engine, and improved the reliability of motor, coordinate with chamfering by compact heap, guaranteed the versatility of Product Assembly.
Description of drawings
Fig. 1 is the structural representation of a kind of preferred embodiment of providing of the utility model.
In figure, 1, body; 11, chamfering; 2, oil pump drive end; 3, air compressor drive end; 4, tapered roller bearing; 5, deep groove ball bearing; 6, lining; 7, nut; 8, compact heap.
Embodiment
Be below specific embodiment of the utility model and by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
As shown in Figure 1, the driving-shaft assembly of this diesel engine comprises transmission shaft body 1, and the two ends of body 1 have respectively oil pump drive end 2 and air compressor drive end 3, this oil pump drive end 2 and air compressor drive end 3 and the coaxial setting of body 1.As shown in Figure 1, be arranged with tapered roller bearing 4 on air compressor drive end 3, this tapered roller bearing 4 is resisted against the end of body 1; Be arranged with deep groove ball bearing 5 on oil pump drive end 2, deep groove ball bearing 5 is resisted against the other end of body 1.As shown in Figure 1, also be provided be used to the barrier structure that prevents that deep groove ball bearing 5 from coming off on oil pump drive end 2.Deep groove ball bearing 5 in the present embodiment is two.
Concrete, as shown in Figure 1, this barrier structure comprises the lining 6 that is set on oil pump drive end 2 and the nut 7 that is set on oil pump drive end 2, and lining 6 is resisted against on the inner ring of deep groove ball bearing 5, and nut 7 is resisted against on lining 6 and nut 7 is threaded connection on oil pump drive end 2.
And be provided with compact heap 8 between body 1 and tapered roller bearing 4, and as shown in Figure 1, an end of this compact heap 8 is resisted against on the inner ring of tapered roller bearing 4, and the other end is resisted against the end of body 1.
As shown in Figure 1, be provided with chamfering 11 in the joint of air compressor drive end 3 and body 1, compact heap 8 is complementary with this chamfering 11.In the present embodiment, the radius of chamfering 11 can be 1-5mm, concrete, the chamfering 11 in this enforcement is 3mm.
The driving-shaft assembly of this diesel engine arranges chamfering 11 by air compressor drive end 3 places on transmission shaft, reduced the stress at this place, be convenient to add the withdrawing in man-hour, solve transmission shaft and caused the problem of drive shafts fracture because of fatigue failure, facilitated the use of diesel engine, and improved the reliability of motor, and coordinate with chamfering 11 by compact heap 8, guaranteed the versatility of Product Assembly.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Although this paper has more used 1, body; 11, chamfering; 2, oil pump drive end; 3, air compressor drive end; 4, tapered roller bearing; 5, deep groove ball bearing; 6, lining; 7, nut; 8, the term such as compact heap, but do not get rid of the possibility of using other term.Using these terms is only in order to describe more easily and explain essence of the present utility model; They are construed to any additional restriction is all contrary with the utility model spirit.
Claims (7)
1. the driving-shaft assembly of a diesel engine, comprise transmission shaft body (1), the two ends of described body (1) have respectively oil pump drive end (2) and air compressor drive end (3), described oil pump drive end (2) and air compressor drive end (3) and the above-mentioned coaxial setting of body (1), it is characterized in that, be arranged with tapered roller bearing (4) on described air compressor drive end (3), described tapered roller bearing (4) is resisted against the end of above-mentioned body (1), be arranged with deep groove ball bearing (5) on described oil pump drive end (2), described deep groove ball bearing (5) is resisted against the other end of above-mentioned body (1), also be provided be used to the barrier structure that prevents that described deep groove ball bearing (5) from coming off on described oil pump drive end (2).
2. the driving-shaft assembly of a kind of diesel engine according to claim 1, it is characterized in that, described barrier structure comprises the lining (6) that is set on oil pump drive end (2) and is set in nut (7) on oil pump drive end (2), described lining (6) is resisted against on the inner ring of above-mentioned deep groove ball bearing (5), and described nut (7) is resisted against lining (6) upward and described nut (7) is threaded connection on above-mentioned oil pump drive end (2).
3. the driving-shaft assembly of a kind of diesel engine according to claim 2, it is characterized in that, be provided with compact heap (8) between described body (1) and tapered roller bearing (4), one end of described compact heap (8) is resisted against on the inner ring of tapered roller bearing (4), and the other end is resisted against the end of body (1).
4. the driving-shaft assembly of a kind of diesel engine according to claim 3, it is characterized in that, described air compressor drive end (3) is provided with chamfering (11) with the joint of body (1), and above-mentioned compact heap (8) is complementary with this chamfering (11).
5. the driving-shaft assembly of a kind of diesel engine according to claim 4, is characterized in that, the radius of described chamfering (11) is 1-5mm.
6. the driving-shaft assembly of a kind of diesel engine according to claim 5, is characterized in that, the radius of described chamfering (11) is 3mm.
7. the driving-shaft assembly of the described a kind of diesel engine of any one according to claim 1 to 6, is characterized in that, described deep groove ball bearing (5) is two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220651369 CN202926854U (en) | 2012-11-20 | 2012-11-20 | Transmission shaft assembly of diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220651369 CN202926854U (en) | 2012-11-20 | 2012-11-20 | Transmission shaft assembly of diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202926854U true CN202926854U (en) | 2013-05-08 |
Family
ID=48216818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220651369 Expired - Fee Related CN202926854U (en) | 2012-11-20 | 2012-11-20 | Transmission shaft assembly of diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202926854U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103032445A (en) * | 2012-11-20 | 2013-04-10 | 宁波市鄞州永茂机械配件厂 | Driving shaft assembly of diesel engine |
-
2012
- 2012-11-20 CN CN 201220651369 patent/CN202926854U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103032445A (en) * | 2012-11-20 | 2013-04-10 | 宁波市鄞州永茂机械配件厂 | Driving shaft assembly of diesel engine |
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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: 20130508 Termination date: 20131120 |