CN202560798U - Double-thrust support structure of diesel engine crankshaft - Google Patents
Double-thrust support structure of diesel engine crankshaft Download PDFInfo
- Publication number
- CN202560798U CN202560798U CN2012202115909U CN201220211590U CN202560798U CN 202560798 U CN202560798 U CN 202560798U CN 2012202115909 U CN2012202115909 U CN 2012202115909U CN 201220211590 U CN201220211590 U CN 201220211590U CN 202560798 U CN202560798 U CN 202560798U
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- CN
- China
- Prior art keywords
- crankshaft
- roller bearing
- bent axle
- diesel engine
- bearing
- 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 provides a double-thrust support structure of a diesel engine crankshaft. A short shaft neck at one end of the crankshaft is provided with a roller bearing supported on a machine body. A long shaft neck at the other end of the crankshaft is provided with a roller bearing supported on the machine body through a bearing base. The two roller bearings are respectively fixed on the shaft necks at two ends of the crankshaft through inner rings of the roller bearings and are closely attached to shoulders of the shaft necks of the crankshaft. An outer ring of the roller bearing on the short shaft neck of the crankshaft is closely attached to the thrust face of an inner hole of the machine body. An outer ring of the other roller bearing on the long shaft neck of the crankshaft is closely attached to the thrust face of an inner hole of the bearing base. A pad is arranged between the bearing base and the machine body. An axial gap of the crankshaft is adjusted through adjusting the thickness of the pad to ensure stable operation of the crankshaft. The double-thrust support structure of the diesel engine crankshaft is simple and reasonable in structure, lowers manufacture cost, is convenient to maintain, assemble and disassemble, strengthens operation reliability of the crankshaft, and prolongs service life of the crankshaft.
Description
Technical field
The utility model relates to a kind of two thrust supporting structures of stressed supporting structure, particularly a kind of crankshaft of diesel engine of crankshaft of diesel engine.
Background technique
At present, the support of crankshaft of diesel engine is generally dual-support structure, and is as shown in Figure 1; Be supported on the body 1 through the roller bearing of installing 3 on the minor axis neck of bent axle 2 one ends; On the major axis neck of bent axle 2 the other ends deep groove ball bearing 4 is housed, and is supported on the body 1, between the axle journal shoulder of bearing support 5 and bent axle 2, also be provided with thrust plate 6 through bearing support 5; Thrust plate 6 is connected with bearing support 5 through construction bolt 7, on bent axle 2, also is provided with the location jump ring 8 that snaps in jump ring groove 9.Existing bent axle dual-support structure, not only structure is compact inadequately, and cost of production is higher; And very inconvenience of maintenance, dismounting; As when dismantling, need bearing support 5, deep groove ball bearing 4, location jump ring 8, construction bolt 7, thrust plate 6 etc. are removed the inconvenience of operation ten minutes one by one.In addition be deep groove ball bearing 4 because bent axle 2 one sides adopt, on bent axle 2, offered jump ring groove 9 in addition, particularly when diesel engine horsepower greater than the diameter of 22 or bent axle 2 during greater than 115mm, safety reliability, the working life of bent axle 2 reduce greatly.
The model utility content
Originally overcome the deficiency of existing technology, the utility model provides a kind of two thrust supporting structures of simple for structure, rational crankshaft of diesel engine, reducing production costs, to be convenient to maintenance, dismounting, and improves the safety reliability and the working life of work.
The utility model solves the technological scheme that its technical problem adopted: on the minor axis neck of bent axle one end the roller bearing that is supported on the body is housed; On the major axis neck of the bent axle the other end another roller bearing is housed, this roller bearing is supported on the body through bearing support; Two roller bearings are fixed in crankshaft two end axle journal place through its inner ring respectively, and are close to the axle journal shoulder of bent axle; The outer ring of the roller bearing on the bent axle minor axis neck and body endoporus thrust surface are close to, and the outer ring and the inner hole of bearing seat thrust surface of the another roller bearing on the bent axle major axis neck are close to.
Between bearing support and body, be provided with pad,, adjust the axial clearance of bent axle, to guarantee the smooth working of bent axle through the thickness of adjustment pad.
The beneficial effect of the utility model is: owing to adopted two thrust supporting structures in the both sides of bent axle; Thereby its structure is more simple, rationally, reduced manufacture cost, be convenient to maintenance and dismounting; Strengthen the functional reliability of bent axle simultaneously, prolonged the working life of bent axle.
Description of drawings
Fig. 1 is the structural representation of the dual-support structure of existing technology crankshaft of diesel engine;
Fig. 2 is the structural representation of the utility model.
Among the figure: 1 for body, 2 for bent axle, 3 for roller bearing, 3-1 be that roller bearing, 4 is pad for fixing bolt, 11 for jump ring groove, 10 for location jump ring, 9 for construction bolt, 8 for thrust plate, 7 for bearing support, 6 for deep groove ball bearing, 5.
Embodiment
Do further to detail below in conjunction with 2 pairs of the utility model of accompanying drawing.
Two thrust supporting structures of the described crankshaft of diesel engine of the utility model, as shown in Figure 2, on the minor axis neck of bent axle 2 one ends roller bearing 3 is housed, roller bearing 3 is supported on the body 1; Another roller bearing 3-1 is housed on the major axis neck of bent axle 2 the other ends, and this roller bearing 3-1 is supported on the body 1 through bearing support 5, and bearing support 5 fixes through fixing bolt 10 and body 1; Two roller bearings 3, the 3-1 inner ring through separately respectively are fixed in axle journal place, bent axle 2 two ends, and are close to two axle journal shoulders of bent axle 2; The outer ring of the roller bearing 3 on the bent axle 2 minor axis necks and body 1 endoporus thrust surface are close to, and the outer ring of the another roller bearing 3-1 on the bent axle 2 major axis necks and bearing support 5 endoporus thrust surfaces are close to.Between bearing support 5 and body 1, be provided with pad 11,, adjust the axial clearance of bent axle 2, to guarantee bent axle 2 smooth workings through the thickness of adjustment pad 11.
Claims (2)
1. two thrust supporting structures of crankshaft of diesel engine are equipped with the roller bearing that is supported on the body on the minor axis neck of bent axle one end; It is characterized in that: on the major axis neck of the bent axle the other end another roller bearing is housed, this roller bearing is supported on the body through bearing support; Two roller bearings are fixed in crankshaft two end axle journal place through its inner ring respectively, and are close to the axle journal shoulder of bent axle; The outer ring of the roller bearing on the bent axle minor axis neck and body endoporus thrust surface are close to, and the outer ring and the inner hole of bearing seat thrust surface of the another roller bearing on the bent axle major axis neck are close to.
2. two thrust supporting structures of crankshaft of diesel engine according to claim 1 is characterized in that: between bearing support and body, be provided with pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202115909U CN202560798U (en) | 2012-05-12 | 2012-05-12 | Double-thrust support structure of diesel engine crankshaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202115909U CN202560798U (en) | 2012-05-12 | 2012-05-12 | Double-thrust support structure of diesel engine crankshaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202560798U true CN202560798U (en) | 2012-11-28 |
Family
ID=47210458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202115909U Expired - Fee Related CN202560798U (en) | 2012-05-12 | 2012-05-12 | Double-thrust support structure of diesel engine crankshaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202560798U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103438089A (en) * | 2013-08-09 | 2013-12-11 | 常州亚美柯机械设备有限公司 | Device for regulating axial clearance of crankshaft of single cylinder diesel |
-
2012
- 2012-05-12 CN CN2012202115909U patent/CN202560798U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103438089A (en) * | 2013-08-09 | 2013-12-11 | 常州亚美柯机械设备有限公司 | Device for regulating axial clearance of crankshaft of single cylinder diesel |
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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: 20121128 Termination date: 20200512 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |